1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
<meta name="generator" content="Doxygen 1.8.11"/>
<title>AllegroGL: glvtable.c Source File</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="dynsections.js"></script>
<link href="alleggl.css" rel="stylesheet" type="text/css" />
</head>
<body>
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
<div id="titlearea">
<table cellspacing="0" cellpadding="0">
<tbody>
<tr style="height: 56px;">
<td id="projectalign" style="padding-left: 0.5em;">
<div id="projectname">AllegroGL
 <span id="projectnumber">0.4.4</span>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<!-- end header part -->
<!-- Generated by Doxygen 1.8.11 -->
<div id="navrow1" class="tabs">
<ul class="tablist">
<li><a href="index.html"><span>Main Page</span></a></li>
<li><a href="pages.html"><span>Related Pages</span></a></li>
<li><a href="modules.html"><span>Modules</span></a></li>
<li class="current"><a href="files.html"><span>Files</span></a></li>
</ul>
</div>
<div id="navrow2" class="tabs2">
<ul class="tablist">
<li><a href="files.html"><span>File List</span></a></li>
<li><a href="globals.html"><span>Globals</span></a></li>
</ul>
</div>
<div id="nav-path" class="navpath">
<ul>
<li class="navelem"><a class="el" href="dir_68267d1309a1af8e8297ef4c3efbcdba.html">src</a></li> </ul>
</div>
</div><!-- top -->
<div class="header">
<div class="headertitle">
<div class="title">glvtable.c</div> </div>
</div><!--header-->
<div class="contents">
<a href="glvtable_8c.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/* This code is (C) AllegroGL contributors, and double licensed under</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * the GPL and zlib licenses. See gpl.txt or zlib.txt for details.</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> */</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="preprocessor">#include <string.h></span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> </div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor">#include <allegro.h></span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> </div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#ifdef ALLEGRO_WINDOWS</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include <winalleg.h></span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> </div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include "<a class="code" href="alleggl_8h.html">alleggl.h</a>"</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include "allglint.h"</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#include "glvtable.h"</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#include <allegro/internal/aintern.h></span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#ifdef ALLEGRO_MACOSX</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#include <OpenGL/glu.h></span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include <GL/glu.h></span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> </div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> </div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="keyword">static</span> GFX_VTABLE allegro_gl_screen_vtable;</div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="keyword">static</span> GLuint __allegro_gl_pool_texture = 0;</div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> </div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="keyword">static</span> GLuint __allegro_gl_dummy_texture = 0; <span class="comment">/* For ATI Rage Pro */</span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> </div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="keyword">static</span> <span class="keywordtype">int</span> __agl_owning_drawing_pattern_tex = FALSE;</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> GLuint __agl_drawing_pattern_tex = 0;</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> BITMAP *__agl_drawing_pattern_bmp = 0;</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="keyword">static</span> <span class="keywordtype">int</span> __agl_drawing_mode = DRAW_MODE_SOLID;</div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> </div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> </div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="comment">/* Computes the next power of two if the number wasn't a power of two to start</span></div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="comment"> * with. Ref: http://bob.allegronetwork.com/prog/tricks.html#roundtonextpowerof2</span></div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="comment"> */</span></div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="keywordtype">int</span> __allegro_gl_make_power_of_2(<span class="keywordtype">int</span> x) {</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  x--;</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  x |= (x >> 1);</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  x |= (x >> 2);</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  x |= (x >> 4);</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  x |= (x >> 8);</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  x |= (x >> 16);</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  x++;</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keywordflow">return</span> x;</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span> }</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span> </div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span> </div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span> </div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="comment">/* allegro_gl_drawing_mode (GFX_DRIVER vtable entry):</span></div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="comment"> * Sets the drawing mode. Same implementation to all GFX vtables.</span></div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="comment"> */</span></div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="keywordtype">void</span> allegro_gl_drawing_mode(<span class="keywordtype">void</span>) {</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="keywordflow">if</span> (__agl_drawing_mode == _drawing_mode)</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span> </div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="keywordflow">switch</span> (__agl_drawing_mode) {</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="keywordflow">case</span> DRAW_MODE_TRANS:</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  glDisable(GL_BLEND);</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keywordflow">case</span> DRAW_MODE_XOR:</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  glDisable(GL_COLOR_LOGIC_OP);</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keywordflow">case</span> DRAW_MODE_COPY_PATTERN:</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  glDisable(GL_TEXTURE_2D);</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  glBindTexture(GL_TEXTURE_2D, 0);</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="keywordflow">if</span> (__agl_owning_drawing_pattern_tex && __agl_drawing_pattern_tex)</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  glDeleteTextures(1, &__agl_drawing_pattern_tex);</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  __agl_drawing_pattern_tex = 0;</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  __agl_drawing_pattern_bmp = 0;</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  }</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span> </div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  __agl_drawing_mode = _drawing_mode;</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span> </div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="keywordflow">switch</span> (_drawing_mode) {</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="keywordflow">case</span> DRAW_MODE_TRANS:</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  glEnable(GL_BLEND);</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span> </div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="keywordflow">case</span> DRAW_MODE_XOR:</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  glEnable(GL_COLOR_LOGIC_OP);</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  glLogicOp(GL_XOR);</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span> </div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="keywordflow">case</span> DRAW_MODE_COPY_PATTERN:</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keywordflow">if</span> (is_memory_bitmap(_drawing_pattern)) {</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  __agl_drawing_pattern_tex =</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <a class="code" href="group__texture.html#gae071354f76bc28e1bafbd90bdecbc0c9">allegro_gl_make_texture</a>(_drawing_pattern);</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  __agl_drawing_pattern_bmp = _drawing_pattern;</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  __agl_owning_drawing_pattern_tex = TRUE;</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  }</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (is_video_bitmap(_drawing_pattern)) {</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  AGL_VIDEO_BITMAP *bmp = _drawing_pattern->extra;</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  __agl_drawing_pattern_tex = bmp->tex;</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  __agl_drawing_pattern_bmp = bmp->memory_copy;</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  __agl_owning_drawing_pattern_tex = FALSE;</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  }</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span> </div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  glEnable(GL_TEXTURE_2D);</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  glBindTexture(GL_TEXTURE_2D, __agl_drawing_pattern_tex);</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span> </div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  }</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span> }</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span> </div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span> </div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span> <span class="keywordtype">void</span> split_color(<span class="keywordtype">int</span> color, GLubyte *r, GLubyte *g, GLubyte *b, GLubyte *a,</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="keywordtype">int</span> color_depth)</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span> {</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  AGL_LOG(2, <span class="stringliteral">"glvtable.c:split_color\n"</span>);</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  *r = getr_depth(color_depth, color);</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  *g = getg_depth(color_depth, color);</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  *b = getb_depth(color_depth, color);</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="keywordflow">if</span> (color_depth == 32)</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  *a = geta_depth(color_depth, color);</div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  *a = 255;</div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span> }</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span> </div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span> </div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span> <span class="comment">/* allegro_gl_created_sub_bitmap:</span></div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span> <span class="comment"> */</span></div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span> <span class="keywordtype">void</span> allegro_gl_created_sub_bitmap(BITMAP *bmp, BITMAP *parent)</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span> {</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  bmp->extra = parent;</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span> }</div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span> </div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span> </div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span> <span class="comment">/* static void allegro_gl_screen_acquire(struct BITMAP *bmp) */</span></div><div class="line"><a name="l00160"></a><span class="lineno"><a class="line" href="group__glvtable.html#ga702812e50246c61eb9f01fd8aba69325"> 160</a></span> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="group__glvtable.html#ga702812e50246c61eb9f01fd8aba69325">allegro_gl_screen_acquire</a>(<span class="keyword">struct</span> BITMAP *bmp) {}</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span> </div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span> </div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span> </div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span> <span class="comment">/* static void allegro_gl_screen_release(struct BITMAP *bmp) */</span></div><div class="line"><a name="l00170"></a><span class="lineno"><a class="line" href="group__glvtable.html#ga6c2b0685587a0feafcb194a9a67d6aa9"> 170</a></span> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="group__glvtable.html#ga6c2b0685587a0feafcb194a9a67d6aa9">allegro_gl_screen_release</a>(<span class="keyword">struct</span> BITMAP *bmp) {}</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span> </div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span> </div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span> </div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span> <span class="keyword">static</span> <span class="keywordtype">int</span> allegro_gl_screen_getpixel(<span class="keyword">struct</span> BITMAP *bmp, <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y)</div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span> {</div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  GLubyte pixel[3];</div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  AGL_LOG(2, <span class="stringliteral">"glvtable.c:allegro_gl_screen_getpixel\n"</span>);</div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  <span class="keywordflow">if</span> (bmp->clip && (x < bmp->cl || x >= bmp->cr</div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  || y < bmp->ct || y >= bmp->cb)) {</div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="keywordflow">return</span> -1;</div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  }</div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="keywordflow">if</span> (is_sub_bitmap(bmp)) {</div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  x += bmp->x_ofs;</div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  y += bmp->y_ofs;</div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  }</div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  glReadPixels(x, bmp->h - y - 1, 1, 1, GL_RGB, GL_UNSIGNED_BYTE, pixel);</div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span> </div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <span class="keywordflow">return</span> makecol_depth(bitmap_color_depth(screen),</div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  pixel[0], pixel[1], pixel[2]);</div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span> }</div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span> </div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span> </div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span> </div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span> <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_screen_putpixel(<span class="keyword">struct</span> BITMAP *bmp, <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y,</div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  <span class="keywordtype">int</span> color)</div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span> {</div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  GLubyte r, g, b, a;</div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  AGL_LOG(2, <span class="stringliteral">"glvtable.c:allegro_gl_screen_putpixel\n"</span>);</div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  split_color(color, &r, &g, &b, &a, bitmap_color_depth(bmp));</div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <span class="keywordflow">if</span> (bmp->clip && (x < bmp->cl || x >= bmp->cr</div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  || y < bmp->ct || y >= bmp->cb)) {</div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  }</div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span> </div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="keywordflow">if</span> (is_sub_bitmap(bmp)) {</div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  x += bmp->x_ofs;</div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  y += bmp->y_ofs;</div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  }</div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span> </div><div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  glColor4ub(r, g, b, a);</div><div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  glBegin(GL_POINTS);</div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  glVertex2f(x, y);</div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  glEnd();</div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span> }</div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span> </div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span> </div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span> </div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span> <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_screen_vline(<span class="keyword">struct</span> BITMAP *bmp, <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y1, <span class="keywordtype">int</span> y2,</div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  <span class="keywordtype">int</span> color)</div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span> {</div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  GLubyte r, g, b, a;</div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  AGL_LOG(2, <span class="stringliteral">"glvtable.c:allegro_gl_screen_vline\n"</span>);</div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span> </div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  <span class="keywordflow">if</span> (y1 > y2) {</div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  <span class="keywordtype">int</span> temp = y1;</div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  y1 = y2;</div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  y2 = temp;</div><div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  }</div><div class="line"><a name="l00229"></a><span class="lineno"> 229</span> </div><div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  <span class="keywordflow">if</span> (bmp->clip) {</div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  <span class="keywordflow">if</span> ((x < bmp->cl) || (x >= bmp->cr)) {</div><div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  }</div><div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  <span class="keywordflow">if</span> ((y1 >= bmp->cb) || (y2 < bmp->ct)) {</div><div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  }</div><div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  <span class="keywordflow">if</span> (y1 < bmp->ct) {</div><div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  y1 = bmp->ct;</div><div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  }</div><div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  <span class="keywordflow">if</span> (y2 >= bmp->cb) {</div><div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  y2 = bmp->cb - 1;</div><div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  }</div><div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  }</div><div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  </div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  <span class="keywordflow">if</span> (is_sub_bitmap(bmp)) {</div><div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  x += bmp->x_ofs;</div><div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  y1 += bmp->y_ofs;</div><div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  y2 += bmp->y_ofs;</div><div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  }</div><div class="line"><a name="l00250"></a><span class="lineno"> 250</span> </div><div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  split_color(color, &r, &g, &b, &a, bitmap_color_depth(bmp));</div><div class="line"><a name="l00252"></a><span class="lineno"> 252</span> </div><div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  glColor4ub(r, g, b, a);</div><div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  glBegin(GL_LINES);</div><div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  glVertex2f(x, y1);</div><div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  glVertex2f(x, y2 + 0.325 * 3);</div><div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  glEnd();</div><div class="line"><a name="l00258"></a><span class="lineno"> 258</span> </div><div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00260"></a><span class="lineno"> 260</span> }</div><div class="line"><a name="l00261"></a><span class="lineno"> 261</span> </div><div class="line"><a name="l00262"></a><span class="lineno"> 262</span> </div><div class="line"><a name="l00263"></a><span class="lineno"> 263</span> </div><div class="line"><a name="l00264"></a><span class="lineno"> 264</span> <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_screen_hline(<span class="keyword">struct</span> BITMAP *bmp, <span class="keywordtype">int</span> x1, <span class="keywordtype">int</span> y, <span class="keywordtype">int</span> x2,</div><div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  <span class="keywordtype">int</span> color)</div><div class="line"><a name="l00266"></a><span class="lineno"> 266</span> {</div><div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  GLubyte r, g, b, a;</div><div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  AGL_LOG(2, <span class="stringliteral">"glvtable.c:allegro_gl_hline\n"</span>);</div><div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  </div><div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  <span class="keywordflow">if</span> (x1 > x2) {</div><div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  <span class="keywordtype">int</span> temp = x1;</div><div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  x1 = x2;</div><div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  x2 = temp;</div><div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  }</div><div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  <span class="keywordflow">if</span> (bmp->clip) {</div><div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  <span class="keywordflow">if</span> ((y < bmp->ct) || (y >= bmp->cb)) {</div><div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  }</div><div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  <span class="keywordflow">if</span> ((x1 >= bmp->cr) || (x2 < bmp->cl)) {</div><div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  }</div><div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  <span class="keywordflow">if</span> (x1 < bmp->cl) {</div><div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  x1 = bmp->cl;</div><div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  }</div><div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  <span class="keywordflow">if</span> (x2 >= bmp->cr) {</div><div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  x2 = bmp->cr - 1;</div><div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  }</div><div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  }</div><div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  <span class="keywordflow">if</span> (is_sub_bitmap(bmp)) {</div><div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  x1 += bmp->x_ofs;</div><div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  x2 += bmp->x_ofs;</div><div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  y += bmp->y_ofs;</div><div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  }</div><div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  </div><div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  split_color(color, &r, &g, &b, &a, bitmap_color_depth(bmp));</div><div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  </div><div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  glColor4ub(r, g, b, a);</div><div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  glBegin(GL_LINES);</div><div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  glVertex2f(x1 - 0.325, y);</div><div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  glVertex2f(x2 + 0.325 * 2, y);</div><div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  glEnd();</div><div class="line"><a name="l00302"></a><span class="lineno"> 302</span> </div><div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00304"></a><span class="lineno"> 304</span> }</div><div class="line"><a name="l00305"></a><span class="lineno"> 305</span> </div><div class="line"><a name="l00306"></a><span class="lineno"> 306</span> </div><div class="line"><a name="l00307"></a><span class="lineno"> 307</span> </div><div class="line"><a name="l00308"></a><span class="lineno"> 308</span> <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_screen_line(<span class="keyword">struct</span> BITMAP *bmp, <span class="keywordtype">int</span> x1, <span class="keywordtype">int</span> y1, <span class="keywordtype">int</span> x2,</div><div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  <span class="keywordtype">int</span> y2, <span class="keywordtype">int</span> color)</div><div class="line"><a name="l00310"></a><span class="lineno"> 310</span> {</div><div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  GLubyte r, g, b, a;</div><div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  AGL_LOG(2, <span class="stringliteral">"glvtable.c:allegro_gl_screen_line\n"</span>);</div><div class="line"><a name="l00313"></a><span class="lineno"> 313</span> </div><div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  <span class="keywordflow">if</span> (bmp->clip) {</div><div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  glPushAttrib(GL_SCISSOR_BIT);</div><div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  glEnable(GL_SCISSOR_TEST);</div><div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  glScissor(bmp->x_ofs + bmp->cl, bmp->h + bmp->y_ofs - bmp->cb,</div><div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  bmp->cr - bmp->cl, bmp->cb - bmp->ct);</div><div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  }</div><div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  <span class="keywordflow">if</span> (is_sub_bitmap(bmp)) {</div><div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  x1 += bmp->x_ofs;</div><div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  x2 += bmp->x_ofs;</div><div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  y1 += bmp->y_ofs;</div><div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  y2 += bmp->y_ofs;</div><div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  }</div><div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  </div><div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  split_color(color, &r, &g, &b, &a, bitmap_color_depth(bmp));</div><div class="line"><a name="l00328"></a><span class="lineno"> 328</span> </div><div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  glColor4ub(r, g, b, a);</div><div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  glBegin(GL_LINES);</div><div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  glVertex2f(x1 + 0.1625, y1 + 0.1625);</div><div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  glVertex2f(x2 + 0.1625, y2 + 0.1625);</div><div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  glEnd();</div><div class="line"><a name="l00334"></a><span class="lineno"> 334</span> </div><div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  <span class="comment">/* OpenGL skips the endpoint when drawing lines */</span></div><div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  glBegin(GL_POINTS);</div><div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  glVertex2f(x2 + 0.1625, y2 + 0.1625);</div><div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  glEnd();</div><div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  </div><div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  <span class="keywordflow">if</span> (bmp->clip) {</div><div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  glPopAttrib();</div><div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  }</div><div class="line"><a name="l00343"></a><span class="lineno"> 343</span> </div><div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00345"></a><span class="lineno"> 345</span> }</div><div class="line"><a name="l00346"></a><span class="lineno"> 346</span> </div><div class="line"><a name="l00347"></a><span class="lineno"> 347</span> </div><div class="line"><a name="l00348"></a><span class="lineno"> 348</span> <span class="preprocessor">#define SET_TEX_COORDS(x, y) \</span></div><div class="line"><a name="l00349"></a><span class="lineno"> 349</span> <span class="preprocessor"> do { \</span></div><div class="line"><a name="l00350"></a><span class="lineno"> 350</span> <span class="preprocessor"> if (__agl_drawing_pattern_tex) { \</span></div><div class="line"><a name="l00351"></a><span class="lineno"> 351</span> <span class="preprocessor"> glTexCoord2f ( \</span></div><div class="line"><a name="l00352"></a><span class="lineno"> 352</span> <span class="preprocessor"> (x - _drawing_x_anchor) / (float)__agl_drawing_pattern_bmp->w,\</span></div><div class="line"><a name="l00353"></a><span class="lineno"> 353</span> <span class="preprocessor"> (y - _drawing_y_anchor) / (float)__agl_drawing_pattern_bmp->h \</span></div><div class="line"><a name="l00354"></a><span class="lineno"> 354</span> <span class="preprocessor"> ); \</span></div><div class="line"><a name="l00355"></a><span class="lineno"> 355</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l00356"></a><span class="lineno"> 356</span> <span class="preprocessor"> } while(0)</span></div><div class="line"><a name="l00357"></a><span class="lineno"> 357</span> </div><div class="line"><a name="l00358"></a><span class="lineno"> 358</span> </div><div class="line"><a name="l00359"></a><span class="lineno"> 359</span> <span class="keywordtype">void</span> allegro_gl_screen_rectfill(<span class="keyword">struct</span> BITMAP *bmp, <span class="keywordtype">int</span> x1, <span class="keywordtype">int</span> y1,</div><div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  <span class="keywordtype">int</span> x2, <span class="keywordtype">int</span> y2, <span class="keywordtype">int</span> color)</div><div class="line"><a name="l00361"></a><span class="lineno"> 361</span> {</div><div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  GLubyte r, g, b, a;</div><div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  GLfloat old_col[4];</div><div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  AGL_LOG(2, <span class="stringliteral">"glvtable.c:allegro_gl_screen_rectfill\n"</span>);</div><div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  </div><div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  <span class="keywordflow">if</span> (x1 > x2) {</div><div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  <span class="keywordtype">int</span> temp = x1;</div><div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  x1 = x2;</div><div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  x2 = temp;</div><div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  }</div><div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  </div><div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  <span class="keywordflow">if</span> (y1 > y2) {</div><div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  <span class="keywordtype">int</span> temp = y1;</div><div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  y1 = y2;</div><div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  y2 = temp;</div><div class="line"><a name="l00376"></a><span class="lineno"> 376</span>  }</div><div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  </div><div class="line"><a name="l00378"></a><span class="lineno"> 378</span>  <span class="keywordflow">if</span> (bmp->clip) {</div><div class="line"><a name="l00379"></a><span class="lineno"> 379</span>  <span class="keywordflow">if</span> ((x1 > bmp->cr) || (x2 < bmp->cl)) {</div><div class="line"><a name="l00380"></a><span class="lineno"> 380</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00381"></a><span class="lineno"> 381</span>  }</div><div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  <span class="keywordflow">if</span> (x1 < bmp->cl) {</div><div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  x1 = bmp->cl;</div><div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  }</div><div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  <span class="keywordflow">if</span> (x2 > bmp->cr) {</div><div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  x2 = bmp->cr;</div><div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  }</div><div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  <span class="keywordflow">if</span> ((y1 > bmp->cb) || (y2 < bmp->ct)) {</div><div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  }</div><div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  <span class="keywordflow">if</span> (y1 < bmp->ct) {</div><div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  y1 = bmp->ct;</div><div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  }</div><div class="line"><a name="l00394"></a><span class="lineno"> 394</span>  <span class="keywordflow">if</span> (y2 > bmp->cb) {</div><div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  y2 = bmp->cb;</div><div class="line"><a name="l00396"></a><span class="lineno"> 396</span>  }</div><div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  }</div><div class="line"><a name="l00398"></a><span class="lineno"> 398</span>  <span class="keywordflow">if</span> (is_sub_bitmap(bmp)) {</div><div class="line"><a name="l00399"></a><span class="lineno"> 399</span>  x1 += bmp->x_ofs;</div><div class="line"><a name="l00400"></a><span class="lineno"> 400</span>  x2 += bmp->x_ofs;</div><div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  y1 += bmp->y_ofs;</div><div class="line"><a name="l00402"></a><span class="lineno"> 402</span>  y2 += bmp->y_ofs;</div><div class="line"><a name="l00403"></a><span class="lineno"> 403</span>  }</div><div class="line"><a name="l00404"></a><span class="lineno"> 404</span>  </div><div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  glGetFloatv(GL_CURRENT_COLOR, old_col);</div><div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  split_color(color, &r, &g, &b, &a, bitmap_color_depth(bmp));</div><div class="line"><a name="l00407"></a><span class="lineno"> 407</span>  glColor4ub(r, g, b, a);</div><div class="line"><a name="l00408"></a><span class="lineno"> 408</span> </div><div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  glBegin(GL_QUADS);</div><div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  SET_TEX_COORDS(x1, y1);</div><div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  glVertex2f(x1, y1);</div><div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  SET_TEX_COORDS(x2, y1);</div><div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  glVertex2f(x2, y1);</div><div class="line"><a name="l00414"></a><span class="lineno"> 414</span>  SET_TEX_COORDS(x2, y2);</div><div class="line"><a name="l00415"></a><span class="lineno"> 415</span>  glVertex2f(x2, y2);</div><div class="line"><a name="l00416"></a><span class="lineno"> 416</span>  SET_TEX_COORDS(x1, y2);</div><div class="line"><a name="l00417"></a><span class="lineno"> 417</span>  glVertex2f(x1, y2);</div><div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  glEnd();</div><div class="line"><a name="l00419"></a><span class="lineno"> 419</span> </div><div class="line"><a name="l00420"></a><span class="lineno"> 420</span>  glColor4fv(old_col);</div><div class="line"><a name="l00421"></a><span class="lineno"> 421</span> </div><div class="line"><a name="l00422"></a><span class="lineno"> 422</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00423"></a><span class="lineno"> 423</span> }</div><div class="line"><a name="l00424"></a><span class="lineno"> 424</span> </div><div class="line"><a name="l00425"></a><span class="lineno"> 425</span> </div><div class="line"><a name="l00426"></a><span class="lineno"> 426</span> </div><div class="line"><a name="l00427"></a><span class="lineno"> 427</span> <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_screen_triangle(<span class="keyword">struct</span> BITMAP *bmp, <span class="keywordtype">int</span> x1, <span class="keywordtype">int</span> y1,</div><div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  <span class="keywordtype">int</span> x2, <span class="keywordtype">int</span> y2, <span class="keywordtype">int</span> x3, <span class="keywordtype">int</span> y3, <span class="keywordtype">int</span> color)</div><div class="line"><a name="l00429"></a><span class="lineno"> 429</span> {</div><div class="line"><a name="l00430"></a><span class="lineno"> 430</span>  GLubyte r, g, b, a;</div><div class="line"><a name="l00431"></a><span class="lineno"> 431</span>  AGL_LOG(2, <span class="stringliteral">"glvtable.c:allegro_gl_screen_triangle\n"</span>);</div><div class="line"><a name="l00432"></a><span class="lineno"> 432</span>  </div><div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  split_color(color, &r, &g, &b, &a, bitmap_color_depth(bmp));</div><div class="line"><a name="l00434"></a><span class="lineno"> 434</span>  </div><div class="line"><a name="l00435"></a><span class="lineno"> 435</span>  <span class="keywordflow">if</span> (bmp->clip) {</div><div class="line"><a name="l00436"></a><span class="lineno"> 436</span>  glPushAttrib(GL_SCISSOR_BIT);</div><div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  glEnable(GL_SCISSOR_TEST);</div><div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  glScissor(bmp->x_ofs + bmp->cl, bmp->h + bmp->y_ofs - bmp->cb,</div><div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  bmp->cr - bmp->cl, bmp->cb - bmp->ct);</div><div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  }</div><div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  <span class="keywordflow">if</span> (is_sub_bitmap(bmp)) {</div><div class="line"><a name="l00442"></a><span class="lineno"> 442</span>  x1 += bmp->x_ofs;</div><div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  y1 += bmp->y_ofs;</div><div class="line"><a name="l00444"></a><span class="lineno"> 444</span>  x2 += bmp->x_ofs;</div><div class="line"><a name="l00445"></a><span class="lineno"> 445</span>  y2 += bmp->y_ofs;</div><div class="line"><a name="l00446"></a><span class="lineno"> 446</span>  x3 += bmp->x_ofs;</div><div class="line"><a name="l00447"></a><span class="lineno"> 447</span>  y3 += bmp->y_ofs;</div><div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  }</div><div class="line"><a name="l00449"></a><span class="lineno"> 449</span>  </div><div class="line"><a name="l00450"></a><span class="lineno"> 450</span>  glColor4ub(r, g, b, a);</div><div class="line"><a name="l00451"></a><span class="lineno"> 451</span>  glBegin(GL_TRIANGLES);</div><div class="line"><a name="l00452"></a><span class="lineno"> 452</span>  SET_TEX_COORDS(x1, y1);</div><div class="line"><a name="l00453"></a><span class="lineno"> 453</span>  glVertex2f(x1, y1);</div><div class="line"><a name="l00454"></a><span class="lineno"> 454</span>  SET_TEX_COORDS(x2, y2);</div><div class="line"><a name="l00455"></a><span class="lineno"> 455</span>  glVertex2f(x2, y2);</div><div class="line"><a name="l00456"></a><span class="lineno"> 456</span>  SET_TEX_COORDS(x3, y3);</div><div class="line"><a name="l00457"></a><span class="lineno"> 457</span>  glVertex2f(x3, y3);</div><div class="line"><a name="l00458"></a><span class="lineno"> 458</span>  glEnd();</div><div class="line"><a name="l00459"></a><span class="lineno"> 459</span> </div><div class="line"><a name="l00460"></a><span class="lineno"> 460</span>  <span class="keywordflow">if</span> (bmp->clip) {</div><div class="line"><a name="l00461"></a><span class="lineno"> 461</span>  glPopAttrib();</div><div class="line"><a name="l00462"></a><span class="lineno"> 462</span>  }</div><div class="line"><a name="l00463"></a><span class="lineno"> 463</span> }</div><div class="line"><a name="l00464"></a><span class="lineno"> 464</span> </div><div class="line"><a name="l00465"></a><span class="lineno"> 465</span> </div><div class="line"><a name="l00466"></a><span class="lineno"> 466</span> </div><div class="line"><a name="l00467"></a><span class="lineno"> 467</span> <span class="preprocessor">#define BITMAP_BLIT_CLIP(source, dest, source_x, source_y, dest_x, dest_y, \</span></div><div class="line"><a name="l00468"></a><span class="lineno"> 468</span> <span class="preprocessor"> width, height) { \</span></div><div class="line"><a name="l00469"></a><span class="lineno"> 469</span> <span class="preprocessor"> if (dest->clip) { \</span></div><div class="line"><a name="l00470"></a><span class="lineno"> 470</span> <span class="preprocessor"> if ((dest_x >= dest->cr) || (dest_y >= dest->cb) \</span></div><div class="line"><a name="l00471"></a><span class="lineno"> 471</span> <span class="preprocessor"> || (dest_x + width < dest->cl) || (dest_y + height < dest->ct)) { \</span></div><div class="line"><a name="l00472"></a><span class="lineno"> 472</span> <span class="preprocessor"> width = 0; \</span></div><div class="line"><a name="l00473"></a><span class="lineno"> 473</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l00474"></a><span class="lineno"> 474</span> <span class="preprocessor"> if (dest_x < dest->cl) { \</span></div><div class="line"><a name="l00475"></a><span class="lineno"> 475</span> <span class="preprocessor"> width += dest_x - dest->cl; \</span></div><div class="line"><a name="l00476"></a><span class="lineno"> 476</span> <span class="preprocessor"> source_x -= dest_x - dest->cl; \</span></div><div class="line"><a name="l00477"></a><span class="lineno"> 477</span> <span class="preprocessor"> dest_x = dest->cl; \</span></div><div class="line"><a name="l00478"></a><span class="lineno"> 478</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l00479"></a><span class="lineno"> 479</span> <span class="preprocessor"> if (dest_y < dest->ct) { \</span></div><div class="line"><a name="l00480"></a><span class="lineno"> 480</span> <span class="preprocessor"> height += dest_y - dest->ct; \</span></div><div class="line"><a name="l00481"></a><span class="lineno"> 481</span> <span class="preprocessor"> source_y -= dest_y - dest->ct; \</span></div><div class="line"><a name="l00482"></a><span class="lineno"> 482</span> <span class="preprocessor"> dest_y = dest->ct; \</span></div><div class="line"><a name="l00483"></a><span class="lineno"> 483</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l00484"></a><span class="lineno"> 484</span> <span class="preprocessor"> if (dest_x + width > dest->cr) { \</span></div><div class="line"><a name="l00485"></a><span class="lineno"> 485</span> <span class="preprocessor"> width = dest->cr - dest_x; \</span></div><div class="line"><a name="l00486"></a><span class="lineno"> 486</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l00487"></a><span class="lineno"> 487</span> <span class="preprocessor"> if (dest_y + height > dest->cb) { \</span></div><div class="line"><a name="l00488"></a><span class="lineno"> 488</span> <span class="preprocessor"> height = dest->cb - dest_y; \</span></div><div class="line"><a name="l00489"></a><span class="lineno"> 489</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l00490"></a><span class="lineno"> 490</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l00491"></a><span class="lineno"> 491</span> <span class="preprocessor"> if (source->clip) { \</span></div><div class="line"><a name="l00492"></a><span class="lineno"> 492</span> <span class="preprocessor"> if ((source_x >= source->cr) || (source_y >= source->cb) \</span></div><div class="line"><a name="l00493"></a><span class="lineno"> 493</span> <span class="preprocessor"> || (source_x + width < source->cl) \</span></div><div class="line"><a name="l00494"></a><span class="lineno"> 494</span> <span class="preprocessor"> || (source_y + height < source->ct)) { \</span></div><div class="line"><a name="l00495"></a><span class="lineno"> 495</span> <span class="preprocessor"> width = 0; \</span></div><div class="line"><a name="l00496"></a><span class="lineno"> 496</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l00497"></a><span class="lineno"> 497</span> <span class="preprocessor"> if (source_x < source->cl) { \</span></div><div class="line"><a name="l00498"></a><span class="lineno"> 498</span> <span class="preprocessor"> width += source_x - source->cl; \</span></div><div class="line"><a name="l00499"></a><span class="lineno"> 499</span> <span class="preprocessor"> dest_x -= source_x - source->cl; \</span></div><div class="line"><a name="l00500"></a><span class="lineno"> 500</span> <span class="preprocessor"> source_x = source->cl; \</span></div><div class="line"><a name="l00501"></a><span class="lineno"> 501</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l00502"></a><span class="lineno"> 502</span> <span class="preprocessor"> if (source_y < source->ct) { \</span></div><div class="line"><a name="l00503"></a><span class="lineno"> 503</span> <span class="preprocessor"> height += source_y - source->ct; \</span></div><div class="line"><a name="l00504"></a><span class="lineno"> 504</span> <span class="preprocessor"> dest_y -= source_y - source->ct; \</span></div><div class="line"><a name="l00505"></a><span class="lineno"> 505</span> <span class="preprocessor"> source_y = source->ct; \</span></div><div class="line"><a name="l00506"></a><span class="lineno"> 506</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l00507"></a><span class="lineno"> 507</span> <span class="preprocessor"> if (source_x + width > source->cr) { \</span></div><div class="line"><a name="l00508"></a><span class="lineno"> 508</span> <span class="preprocessor"> width = source->cr - source_x; \</span></div><div class="line"><a name="l00509"></a><span class="lineno"> 509</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l00510"></a><span class="lineno"> 510</span> <span class="preprocessor"> if (source_y + height > source->cb) { \</span></div><div class="line"><a name="l00511"></a><span class="lineno"> 511</span> <span class="preprocessor"> height = source->cb - source_y; \</span></div><div class="line"><a name="l00512"></a><span class="lineno"> 512</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l00513"></a><span class="lineno"> 513</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l00514"></a><span class="lineno"> 514</span> <span class="preprocessor">}</span></div><div class="line"><a name="l00515"></a><span class="lineno"> 515</span>  </div><div class="line"><a name="l00516"></a><span class="lineno"> 516</span> </div><div class="line"><a name="l00517"></a><span class="lineno"> 517</span> </div><div class="line"><a name="l00518"></a><span class="lineno"> 518</span> </div><div class="line"><a name="l00519"></a><span class="lineno"> 519</span> <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_screen_blit_from_memory(</div><div class="line"><a name="l00520"></a><span class="lineno"> 520</span>  <span class="keyword">struct</span> BITMAP *source, <span class="keyword">struct</span> BITMAP *dest,</div><div class="line"><a name="l00521"></a><span class="lineno"> 521</span>  <span class="keywordtype">int</span> source_x, <span class="keywordtype">int</span> source_y, <span class="keywordtype">int</span> dest_x, <span class="keywordtype">int</span> dest_y, <span class="keywordtype">int</span> width, <span class="keywordtype">int</span> height)</div><div class="line"><a name="l00522"></a><span class="lineno"> 522</span> {</div><div class="line"><a name="l00523"></a><span class="lineno"> 523</span>  GLfloat saved_zoom_x, saved_zoom_y;</div><div class="line"><a name="l00524"></a><span class="lineno"> 524</span>  GLint saved_row_length;</div><div class="line"><a name="l00525"></a><span class="lineno"> 525</span>  BITMAP *temp = NULL;</div><div class="line"><a name="l00526"></a><span class="lineno"> 526</span>  <span class="keywordtype">void</span> *data;</div><div class="line"><a name="l00527"></a><span class="lineno"> 527</span>  AGL_LOG(2, <span class="stringliteral">"glvtable.c:allegro_gl_screen_blit_from_memory\n"</span>);</div><div class="line"><a name="l00528"></a><span class="lineno"> 528</span> </div><div class="line"><a name="l00529"></a><span class="lineno"> 529</span>  BITMAP_BLIT_CLIP(source, dest, source_x, source_y, dest_x, dest_y,</div><div class="line"><a name="l00530"></a><span class="lineno"> 530</span>  width, height);</div><div class="line"><a name="l00531"></a><span class="lineno"> 531</span> </div><div class="line"><a name="l00532"></a><span class="lineno"> 532</span>  <span class="keywordflow">if</span> (width <= 0 || height <= 0) {</div><div class="line"><a name="l00533"></a><span class="lineno"> 533</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00534"></a><span class="lineno"> 534</span>  }</div><div class="line"><a name="l00535"></a><span class="lineno"> 535</span>  </div><div class="line"><a name="l00536"></a><span class="lineno"> 536</span> </div><div class="line"><a name="l00537"></a><span class="lineno"> 537</span>  <span class="keywordflow">if</span> (is_sub_bitmap(dest)) {</div><div class="line"><a name="l00538"></a><span class="lineno"> 538</span>  dest_x += dest->x_ofs;</div><div class="line"><a name="l00539"></a><span class="lineno"> 539</span>  dest_y += dest->y_ofs;</div><div class="line"><a name="l00540"></a><span class="lineno"> 540</span>  }</div><div class="line"><a name="l00541"></a><span class="lineno"> 541</span> </div><div class="line"><a name="l00542"></a><span class="lineno"> 542</span>  <span class="comment">/* Note: We don't need to offset the source bitmap coordinates</span></div><div class="line"><a name="l00543"></a><span class="lineno"> 543</span> <span class="comment"> * because we use source->line[] directly, which is already offsetted for</span></div><div class="line"><a name="l00544"></a><span class="lineno"> 544</span> <span class="comment"> * us.</span></div><div class="line"><a name="l00545"></a><span class="lineno"> 545</span> <span class="comment"> */</span></div><div class="line"><a name="l00546"></a><span class="lineno"> 546</span>  data = source->line[source_y]</div><div class="line"><a name="l00547"></a><span class="lineno"> 547</span>  + source_x * BYTES_PER_PIXEL(bitmap_color_depth(source));</div><div class="line"><a name="l00548"></a><span class="lineno"> 548</span> </div><div class="line"><a name="l00549"></a><span class="lineno"> 549</span>  <span class="comment">/* If packed pixels (or GL 1.2) isn't supported, then we need to convert</span></div><div class="line"><a name="l00550"></a><span class="lineno"> 550</span> <span class="comment"> * the bitmap into something GL can understand - 24-bpp should do it.</span></div><div class="line"><a name="l00551"></a><span class="lineno"> 551</span> <span class="comment"> */</span></div><div class="line"><a name="l00552"></a><span class="lineno"> 552</span>  <span class="keywordflow">if</span> (!<a class="code" href="group__extensions.html#ga7492f6f6acc608789210560ee63e5436">allegro_gl_extensions_GL</a>.EXT_packed_pixels</div><div class="line"><a name="l00553"></a><span class="lineno"> 553</span>  && bitmap_color_depth(source) < 24) {</div><div class="line"><a name="l00554"></a><span class="lineno"> 554</span>  temp = create_bitmap_ex(24, width, height);</div><div class="line"><a name="l00555"></a><span class="lineno"> 555</span> </div><div class="line"><a name="l00556"></a><span class="lineno"> 556</span>  <span class="keywordflow">if</span> (temp) {</div><div class="line"><a name="l00557"></a><span class="lineno"> 557</span>  blit(source, temp, source_x, source_y, 0, 0, width, height);</div><div class="line"><a name="l00558"></a><span class="lineno"> 558</span>  source_x = 0;</div><div class="line"><a name="l00559"></a><span class="lineno"> 559</span>  source_y = 0;</div><div class="line"><a name="l00560"></a><span class="lineno"> 560</span>  data = temp->line[0];</div><div class="line"><a name="l00561"></a><span class="lineno"> 561</span>  }</div><div class="line"><a name="l00562"></a><span class="lineno"> 562</span>  <span class="keywordflow">else</span> {</div><div class="line"><a name="l00563"></a><span class="lineno"> 563</span>  <span class="comment">/* XXX <rohannessian> Report error? */</span></div><div class="line"><a name="l00564"></a><span class="lineno"> 564</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00565"></a><span class="lineno"> 565</span>  }</div><div class="line"><a name="l00566"></a><span class="lineno"> 566</span>  source = temp;</div><div class="line"><a name="l00567"></a><span class="lineno"> 567</span>  }</div><div class="line"><a name="l00568"></a><span class="lineno"> 568</span>  </div><div class="line"><a name="l00569"></a><span class="lineno"> 569</span> </div><div class="line"><a name="l00570"></a><span class="lineno"> 570</span>  <span class="comment">/* Save state */</span></div><div class="line"><a name="l00571"></a><span class="lineno"> 571</span>  glGetFloatv(GL_ZOOM_X, &saved_zoom_x);</div><div class="line"><a name="l00572"></a><span class="lineno"> 572</span>  glGetFloatv(GL_ZOOM_Y, &saved_zoom_y);</div><div class="line"><a name="l00573"></a><span class="lineno"> 573</span>  glGetIntegerv(GL_UNPACK_ROW_LENGTH, &saved_row_length);</div><div class="line"><a name="l00574"></a><span class="lineno"> 574</span> </div><div class="line"><a name="l00575"></a><span class="lineno"> 575</span>  glPixelStorei(GL_UNPACK_ALIGNMENT, 1);</div><div class="line"><a name="l00576"></a><span class="lineno"> 576</span> </div><div class="line"><a name="l00577"></a><span class="lineno"> 577</span>  glRasterPos2i(dest_x, dest_y);</div><div class="line"><a name="l00578"></a><span class="lineno"> 578</span> </div><div class="line"><a name="l00579"></a><span class="lineno"> 579</span>  <span class="comment">/* XXX <rohannessian> I wonder if it would be faster to use glDrawPixels()</span></div><div class="line"><a name="l00580"></a><span class="lineno"> 580</span> <span class="comment"> * one line at a time instead of playing with the Zoom factor.</span></div><div class="line"><a name="l00581"></a><span class="lineno"> 581</span> <span class="comment"> */</span></div><div class="line"><a name="l00582"></a><span class="lineno"> 582</span>  glPixelZoom (1.0, -1.0);</div><div class="line"><a name="l00583"></a><span class="lineno"> 583</span>  glPixelStorei(GL_UNPACK_ROW_LENGTH,</div><div class="line"><a name="l00584"></a><span class="lineno"> 584</span>  (source->line[1] - source->line[0])</div><div class="line"><a name="l00585"></a><span class="lineno"> 585</span>  / BYTES_PER_PIXEL(source->vtable->color_depth));</div><div class="line"><a name="l00586"></a><span class="lineno"> 586</span> </div><div class="line"><a name="l00587"></a><span class="lineno"> 587</span>  glDrawPixels(width, height, __allegro_gl_get_bitmap_color_format(source, 0),</div><div class="line"><a name="l00588"></a><span class="lineno"> 588</span>  __allegro_gl_get_bitmap_type(source, 0), data);</div><div class="line"><a name="l00589"></a><span class="lineno"> 589</span> </div><div class="line"><a name="l00590"></a><span class="lineno"> 590</span>  <span class="comment">/* Restore state */</span></div><div class="line"><a name="l00591"></a><span class="lineno"> 591</span>  glPixelZoom(saved_zoom_x, saved_zoom_y);</div><div class="line"><a name="l00592"></a><span class="lineno"> 592</span>  glPixelStorei(GL_UNPACK_ROW_LENGTH, saved_row_length);</div><div class="line"><a name="l00593"></a><span class="lineno"> 593</span> </div><div class="line"><a name="l00594"></a><span class="lineno"> 594</span>  <span class="keywordflow">if</span> (temp) {</div><div class="line"><a name="l00595"></a><span class="lineno"> 595</span>  destroy_bitmap(temp);</div><div class="line"><a name="l00596"></a><span class="lineno"> 596</span>  }</div><div class="line"><a name="l00597"></a><span class="lineno"> 597</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00598"></a><span class="lineno"> 598</span> }</div><div class="line"><a name="l00599"></a><span class="lineno"> 599</span> </div><div class="line"><a name="l00600"></a><span class="lineno"> 600</span> </div><div class="line"><a name="l00601"></a><span class="lineno"> 601</span> </div><div class="line"><a name="l00602"></a><span class="lineno"> 602</span> <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_screen_blit_to_memory(</div><div class="line"><a name="l00603"></a><span class="lineno"> 603</span>  <span class="keyword">struct</span> BITMAP *source, <span class="keyword">struct</span> BITMAP *dest,</div><div class="line"><a name="l00604"></a><span class="lineno"> 604</span>  <span class="keywordtype">int</span> source_x, <span class="keywordtype">int</span> source_y, <span class="keywordtype">int</span> dest_x, <span class="keywordtype">int</span> dest_y, <span class="keywordtype">int</span> width, <span class="keywordtype">int</span> height)</div><div class="line"><a name="l00605"></a><span class="lineno"> 605</span> {</div><div class="line"><a name="l00606"></a><span class="lineno"> 606</span>  GLint saved_row_length;</div><div class="line"><a name="l00607"></a><span class="lineno"> 607</span>  GLint saved_alignment;</div><div class="line"><a name="l00608"></a><span class="lineno"> 608</span>  GLint saved_pack_invert;</div><div class="line"><a name="l00609"></a><span class="lineno"> 609</span> </div><div class="line"><a name="l00610"></a><span class="lineno"> 610</span>  BITMAP *bmp = NULL;</div><div class="line"><a name="l00611"></a><span class="lineno"> 611</span> </div><div class="line"><a name="l00612"></a><span class="lineno"> 612</span>  AGL_LOG(2, <span class="stringliteral">"glvtable.c:allegro_gl_screen_blit_to_memory\n"</span>);</div><div class="line"><a name="l00613"></a><span class="lineno"> 613</span> </div><div class="line"><a name="l00614"></a><span class="lineno"> 614</span>  BITMAP_BLIT_CLIP(source, dest, source_x, source_y, dest_x, dest_y,</div><div class="line"><a name="l00615"></a><span class="lineno"> 615</span>  width, height);</div><div class="line"><a name="l00616"></a><span class="lineno"> 616</span>  </div><div class="line"><a name="l00617"></a><span class="lineno"> 617</span>  <span class="keywordflow">if</span> (is_sub_bitmap(source)) {</div><div class="line"><a name="l00618"></a><span class="lineno"> 618</span>  source_x += source->x_ofs;</div><div class="line"><a name="l00619"></a><span class="lineno"> 619</span>  source_y += source->y_ofs;</div><div class="line"><a name="l00620"></a><span class="lineno"> 620</span>  }</div><div class="line"><a name="l00621"></a><span class="lineno"> 621</span>  <span class="keywordflow">if</span> (is_sub_bitmap(dest)) {</div><div class="line"><a name="l00622"></a><span class="lineno"> 622</span>  dest_x += dest->x_ofs;</div><div class="line"><a name="l00623"></a><span class="lineno"> 623</span>  dest_y += dest->y_ofs;</div><div class="line"><a name="l00624"></a><span class="lineno"> 624</span>  }</div><div class="line"><a name="l00625"></a><span class="lineno"> 625</span> </div><div class="line"><a name="l00626"></a><span class="lineno"> 626</span>  <span class="keywordflow">if</span> (width <= 0 || height <= 0) {</div><div class="line"><a name="l00627"></a><span class="lineno"> 627</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00628"></a><span class="lineno"> 628</span>  }</div><div class="line"><a name="l00629"></a><span class="lineno"> 629</span>  </div><div class="line"><a name="l00630"></a><span class="lineno"> 630</span>  <span class="comment">/* Note that glPixelZoom doesn't affect reads -- so we have to do a flip.</span></div><div class="line"><a name="l00631"></a><span class="lineno"> 631</span> <span class="comment"> * We can do this by reading into a temporary bitmap then flipping that to</span></div><div class="line"><a name="l00632"></a><span class="lineno"> 632</span> <span class="comment"> * the destination, -OR- use the GL_MESA_pack_invert extension to do it</span></div><div class="line"><a name="l00633"></a><span class="lineno"> 633</span> <span class="comment"> * for us.</span></div><div class="line"><a name="l00634"></a><span class="lineno"> 634</span> <span class="comment"> *</span></div><div class="line"><a name="l00635"></a><span class="lineno"> 635</span> <span class="comment"> * If GL_EXT_packed_pixels isn't supported, then we can't use</span></div><div class="line"><a name="l00636"></a><span class="lineno"> 636</span> <span class="comment"> * MESA_pack_invert on 16-bpp bitmaps or less.</span></div><div class="line"><a name="l00637"></a><span class="lineno"> 637</span> <span class="comment"> */</span></div><div class="line"><a name="l00638"></a><span class="lineno"> 638</span>  </div><div class="line"><a name="l00639"></a><span class="lineno"> 639</span>  <span class="keywordflow">if</span> ( !<a class="code" href="group__extensions.html#ga7492f6f6acc608789210560ee63e5436">allegro_gl_extensions_GL</a>.MESA_pack_invert</div><div class="line"><a name="l00640"></a><span class="lineno"> 640</span>  || (!<a class="code" href="group__extensions.html#ga7492f6f6acc608789210560ee63e5436">allegro_gl_extensions_GL</a>.EXT_packed_pixels</div><div class="line"><a name="l00641"></a><span class="lineno"> 641</span>  && bitmap_color_depth(dest) < 24)) {</div><div class="line"><a name="l00642"></a><span class="lineno"> 642</span>  </div><div class="line"><a name="l00643"></a><span class="lineno"> 643</span>  <span class="comment">/* XXX <rohannessian> Bitmap format should be the same as the source</span></div><div class="line"><a name="l00644"></a><span class="lineno"> 644</span> <span class="comment"> * dest bitmap!</span></div><div class="line"><a name="l00645"></a><span class="lineno"> 645</span> <span class="comment"> */</span></div><div class="line"><a name="l00646"></a><span class="lineno"> 646</span>  <span class="keywordflow">if</span> ((!<a class="code" href="group__extensions.html#ga7492f6f6acc608789210560ee63e5436">allegro_gl_extensions_GL</a>.EXT_packed_pixels</div><div class="line"><a name="l00647"></a><span class="lineno"> 647</span>  && bitmap_color_depth(dest) < 24)) {</div><div class="line"><a name="l00648"></a><span class="lineno"> 648</span>  bmp = create_bitmap_ex(24, width, height);</div><div class="line"><a name="l00649"></a><span class="lineno"> 649</span>  }</div><div class="line"><a name="l00650"></a><span class="lineno"> 650</span>  <span class="keywordflow">else</span> {</div><div class="line"><a name="l00651"></a><span class="lineno"> 651</span>  bmp = create_bitmap_ex(bitmap_color_depth(dest), width, height);</div><div class="line"><a name="l00652"></a><span class="lineno"> 652</span>  }</div><div class="line"><a name="l00653"></a><span class="lineno"> 653</span>  <span class="keywordflow">if</span> (!bmp)</div><div class="line"><a name="l00654"></a><span class="lineno"> 654</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00655"></a><span class="lineno"> 655</span>  }</div><div class="line"><a name="l00656"></a><span class="lineno"> 656</span> </div><div class="line"><a name="l00657"></a><span class="lineno"> 657</span>  glGetIntegerv(GL_PACK_ROW_LENGTH, &saved_row_length);</div><div class="line"><a name="l00658"></a><span class="lineno"> 658</span>  glGetIntegerv(GL_PACK_ALIGNMENT, &saved_alignment);</div><div class="line"><a name="l00659"></a><span class="lineno"> 659</span>  glPixelStorei(GL_PACK_ROW_LENGTH, 0);</div><div class="line"><a name="l00660"></a><span class="lineno"> 660</span>  glPixelStorei(GL_PACK_ALIGNMENT, 1);</div><div class="line"><a name="l00661"></a><span class="lineno"> 661</span> </div><div class="line"><a name="l00662"></a><span class="lineno"> 662</span>  <span class="keywordflow">if</span> (!<a class="code" href="group__extensions.html#ga7492f6f6acc608789210560ee63e5436">allegro_gl_extensions_GL</a>.MESA_pack_invert) {</div><div class="line"><a name="l00663"></a><span class="lineno"> 663</span> </div><div class="line"><a name="l00664"></a><span class="lineno"> 664</span>  glReadPixels(source_x, source->h - source_y - height, width, height,</div><div class="line"><a name="l00665"></a><span class="lineno"> 665</span>  __allegro_gl_get_bitmap_color_format(bmp, 0),</div><div class="line"><a name="l00666"></a><span class="lineno"> 666</span>  __allegro_gl_get_bitmap_type(bmp, 0), bmp->dat);</div><div class="line"><a name="l00667"></a><span class="lineno"> 667</span>  }</div><div class="line"><a name="l00668"></a><span class="lineno"> 668</span>  <span class="keywordflow">else</span> {</div><div class="line"><a name="l00669"></a><span class="lineno"> 669</span>  glGetIntegerv(GL_PACK_INVERT_MESA, &saved_pack_invert);</div><div class="line"><a name="l00670"></a><span class="lineno"> 670</span>  glPixelStorei(GL_PACK_INVERT_MESA, TRUE);</div><div class="line"><a name="l00671"></a><span class="lineno"> 671</span>  glPixelStorei(GL_PACK_ROW_LENGTH,</div><div class="line"><a name="l00672"></a><span class="lineno"> 672</span>  (dest->line[1] - dest->line[0])</div><div class="line"><a name="l00673"></a><span class="lineno"> 673</span>  / BYTES_PER_PIXEL(dest->vtable->color_depth));</div><div class="line"><a name="l00674"></a><span class="lineno"> 674</span>  </div><div class="line"><a name="l00675"></a><span class="lineno"> 675</span>  glReadPixels(source_x, source->h - source_y - height, width, height,</div><div class="line"><a name="l00676"></a><span class="lineno"> 676</span>  __allegro_gl_get_bitmap_color_format(dest, 0),</div><div class="line"><a name="l00677"></a><span class="lineno"> 677</span>  __allegro_gl_get_bitmap_type(dest, 0), dest->line[0]);</div><div class="line"><a name="l00678"></a><span class="lineno"> 678</span>  </div><div class="line"><a name="l00679"></a><span class="lineno"> 679</span>  glPixelStorei(GL_PACK_INVERT_MESA, saved_pack_invert);</div><div class="line"><a name="l00680"></a><span class="lineno"> 680</span>  }</div><div class="line"><a name="l00681"></a><span class="lineno"> 681</span> </div><div class="line"><a name="l00682"></a><span class="lineno"> 682</span>  glPixelStorei(GL_PACK_ROW_LENGTH, saved_row_length);</div><div class="line"><a name="l00683"></a><span class="lineno"> 683</span>  glPixelStorei(GL_PACK_ALIGNMENT, saved_alignment);</div><div class="line"><a name="l00684"></a><span class="lineno"> 684</span> </div><div class="line"><a name="l00685"></a><span class="lineno"> 685</span>  <span class="comment">/* Flip image if needed (glPixelZoom doesn't affect reads) */</span></div><div class="line"><a name="l00686"></a><span class="lineno"> 686</span>  <span class="keywordflow">if</span> (bmp) {</div><div class="line"><a name="l00687"></a><span class="lineno"> 687</span>  </div><div class="line"><a name="l00688"></a><span class="lineno"> 688</span>  <span class="keywordtype">int</span> y, dy;</div><div class="line"><a name="l00689"></a><span class="lineno"> 689</span>  </div><div class="line"><a name="l00690"></a><span class="lineno"> 690</span>  <span class="keywordflow">for</span> (y = 0, dy = dest_y + height - 1; y < height; y++, dy--) {</div><div class="line"><a name="l00691"></a><span class="lineno"> 691</span>  blit(bmp, dest, 0, y, dest_x, dy, width, 1);</div><div class="line"><a name="l00692"></a><span class="lineno"> 692</span>  }</div><div class="line"><a name="l00693"></a><span class="lineno"> 693</span> </div><div class="line"><a name="l00694"></a><span class="lineno"> 694</span>  destroy_bitmap(bmp);</div><div class="line"><a name="l00695"></a><span class="lineno"> 695</span>  }</div><div class="line"><a name="l00696"></a><span class="lineno"> 696</span> </div><div class="line"><a name="l00697"></a><span class="lineno"> 697</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00698"></a><span class="lineno"> 698</span> }</div><div class="line"><a name="l00699"></a><span class="lineno"> 699</span> </div><div class="line"><a name="l00700"></a><span class="lineno"> 700</span> </div><div class="line"><a name="l00701"></a><span class="lineno"> 701</span> </div><div class="line"><a name="l00702"></a><span class="lineno"> 702</span> </div><div class="line"><a name="l00703"></a><span class="lineno"> 703</span> <span class="keywordtype">void</span> allegro_gl_screen_blit_to_self (</div><div class="line"><a name="l00704"></a><span class="lineno"> 704</span>  <span class="keyword">struct</span> BITMAP *source, <span class="keyword">struct</span> BITMAP *dest,</div><div class="line"><a name="l00705"></a><span class="lineno"> 705</span>  <span class="keywordtype">int</span> source_x, <span class="keywordtype">int</span> source_y, <span class="keywordtype">int</span> dest_x, <span class="keywordtype">int</span> dest_y, <span class="keywordtype">int</span> width, <span class="keywordtype">int</span> height)</div><div class="line"><a name="l00706"></a><span class="lineno"> 706</span> {</div><div class="line"><a name="l00707"></a><span class="lineno"> 707</span>  AGL_LOG(2, <span class="stringliteral">"glvtable.c:allegro_gl_screen_blit_to_self\n"</span>);</div><div class="line"><a name="l00708"></a><span class="lineno"> 708</span> </div><div class="line"><a name="l00709"></a><span class="lineno"> 709</span>  BITMAP_BLIT_CLIP(source, dest, source_x, source_y, dest_x, dest_y,</div><div class="line"><a name="l00710"></a><span class="lineno"> 710</span>  width, height);</div><div class="line"><a name="l00711"></a><span class="lineno"> 711</span> </div><div class="line"><a name="l00712"></a><span class="lineno"> 712</span>  <span class="keywordflow">if</span> (is_sub_bitmap(source)) {</div><div class="line"><a name="l00713"></a><span class="lineno"> 713</span>  source_x += source->x_ofs;</div><div class="line"><a name="l00714"></a><span class="lineno"> 714</span>  source_y += source->y_ofs;</div><div class="line"><a name="l00715"></a><span class="lineno"> 715</span>  }</div><div class="line"><a name="l00716"></a><span class="lineno"> 716</span>  <span class="keywordflow">if</span> (is_sub_bitmap(dest)) {</div><div class="line"><a name="l00717"></a><span class="lineno"> 717</span>  dest_x += dest->x_ofs;</div><div class="line"><a name="l00718"></a><span class="lineno"> 718</span>  dest_y += dest->y_ofs;</div><div class="line"><a name="l00719"></a><span class="lineno"> 719</span>  }</div><div class="line"><a name="l00720"></a><span class="lineno"> 720</span> </div><div class="line"><a name="l00721"></a><span class="lineno"> 721</span>  <span class="keywordflow">if</span> (width <= 0 || height <= 0) {</div><div class="line"><a name="l00722"></a><span class="lineno"> 722</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00723"></a><span class="lineno"> 723</span>  }</div><div class="line"><a name="l00724"></a><span class="lineno"> 724</span> </div><div class="line"><a name="l00725"></a><span class="lineno"> 725</span>  <span class="comment">/* screen -> screen */</span></div><div class="line"><a name="l00726"></a><span class="lineno"> 726</span>  <span class="keywordflow">if</span> (is_screen_bitmap(source) && is_screen_bitmap(dest)) {</div><div class="line"><a name="l00727"></a><span class="lineno"> 727</span>  glRasterPos2i(dest_x, dest_y + height - 1);</div><div class="line"><a name="l00728"></a><span class="lineno"> 728</span>  glCopyPixels(source_x, SCREEN_H - source_y - height, width, height,</div><div class="line"><a name="l00729"></a><span class="lineno"> 729</span>  GL_COLOR);</div><div class="line"><a name="l00730"></a><span class="lineno"> 730</span>  }</div><div class="line"><a name="l00731"></a><span class="lineno"> 731</span>  <span class="comment">/* video -> screen */</span></div><div class="line"><a name="l00732"></a><span class="lineno"> 732</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (is_screen_bitmap(dest) && is_video_bitmap(source)) {</div><div class="line"><a name="l00733"></a><span class="lineno"> 733</span>  AGL_VIDEO_BITMAP *vid;</div><div class="line"><a name="l00734"></a><span class="lineno"> 734</span>  BITMAP *source_parent = source;</div><div class="line"><a name="l00735"></a><span class="lineno"> 735</span>  GLfloat current_color[4];</div><div class="line"><a name="l00736"></a><span class="lineno"> 736</span> </div><div class="line"><a name="l00737"></a><span class="lineno"> 737</span>  <span class="keywordflow">while</span> (source_parent->id & BMP_ID_SUB) {</div><div class="line"><a name="l00738"></a><span class="lineno"> 738</span>  source_parent = (BITMAP *)source_parent->extra;</div><div class="line"><a name="l00739"></a><span class="lineno"> 739</span>  }</div><div class="line"><a name="l00740"></a><span class="lineno"> 740</span>  vid = source_parent->extra;</div><div class="line"><a name="l00741"></a><span class="lineno"> 741</span> </div><div class="line"><a name="l00742"></a><span class="lineno"> 742</span>  glGetFloatv(GL_CURRENT_COLOR, current_color);</div><div class="line"><a name="l00743"></a><span class="lineno"> 743</span>  glColor4ub(255, 255, 255, 255);</div><div class="line"><a name="l00744"></a><span class="lineno"> 744</span> </div><div class="line"><a name="l00745"></a><span class="lineno"> 745</span>  <span class="keywordflow">while</span> (vid) {</div><div class="line"><a name="l00746"></a><span class="lineno"> 746</span>  <span class="keywordtype">int</span> sx, sy; <span class="comment">/* source coordinates */</span></div><div class="line"><a name="l00747"></a><span class="lineno"> 747</span>  <span class="keywordtype">int</span> dx, dy; <span class="comment">/* destination coordinates */</span></div><div class="line"><a name="l00748"></a><span class="lineno"> 748</span>  <span class="keywordtype">int</span> w, h;</div><div class="line"><a name="l00749"></a><span class="lineno"> 749</span> </div><div class="line"><a name="l00750"></a><span class="lineno"> 750</span>  <span class="keywordflow">if</span> (source_x >= vid->x_ofs + vid->memory_copy->w ||</div><div class="line"><a name="l00751"></a><span class="lineno"> 751</span>  source_y >= vid->y_ofs + vid->memory_copy->h ||</div><div class="line"><a name="l00752"></a><span class="lineno"> 752</span>  vid->x_ofs >= source_x + width ||</div><div class="line"><a name="l00753"></a><span class="lineno"> 753</span>  vid->y_ofs >= source_y + height) {</div><div class="line"><a name="l00754"></a><span class="lineno"> 754</span>  vid = vid->next;</div><div class="line"><a name="l00755"></a><span class="lineno"> 755</span>  <span class="keywordflow">continue</span>;</div><div class="line"><a name="l00756"></a><span class="lineno"> 756</span>  }</div><div class="line"><a name="l00757"></a><span class="lineno"> 757</span> </div><div class="line"><a name="l00758"></a><span class="lineno"> 758</span>  sx = MAX(vid->x_ofs, source_x) - vid->x_ofs;</div><div class="line"><a name="l00759"></a><span class="lineno"> 759</span>  w = MIN(vid->x_ofs + vid->memory_copy->w, source_x + width)</div><div class="line"><a name="l00760"></a><span class="lineno"> 760</span>  - vid->x_ofs - sx;</div><div class="line"><a name="l00761"></a><span class="lineno"> 761</span>  sy = MAX(vid->y_ofs, source_y) - vid->y_ofs;</div><div class="line"><a name="l00762"></a><span class="lineno"> 762</span>  h = MIN(vid->y_ofs + vid->memory_copy->h, source_y + height)</div><div class="line"><a name="l00763"></a><span class="lineno"> 763</span>  - vid->y_ofs - sy;</div><div class="line"><a name="l00764"></a><span class="lineno"> 764</span>  </div><div class="line"><a name="l00765"></a><span class="lineno"> 765</span>  dx = dest_x + vid->x_ofs + sx - source_x;</div><div class="line"><a name="l00766"></a><span class="lineno"> 766</span>  dy = dest_y + vid->y_ofs + sy - source_y;</div><div class="line"><a name="l00767"></a><span class="lineno"> 767</span> </div><div class="line"><a name="l00768"></a><span class="lineno"> 768</span>  glEnable(vid->target);</div><div class="line"><a name="l00769"></a><span class="lineno"> 769</span>  glBindTexture(vid->target, vid->tex);</div><div class="line"><a name="l00770"></a><span class="lineno"> 770</span> </div><div class="line"><a name="l00771"></a><span class="lineno"> 771</span>  <span class="keywordflow">if</span> (vid->target == GL_TEXTURE_2D) {</div><div class="line"><a name="l00772"></a><span class="lineno"> 772</span>  <span class="keywordtype">float</span> tx = sx / (float)vid->memory_copy->w;</div><div class="line"><a name="l00773"></a><span class="lineno"> 773</span>  <span class="keywordtype">float</span> ty = sy / (<span class="keywordtype">float</span>)vid->memory_copy->h;</div><div class="line"><a name="l00774"></a><span class="lineno"> 774</span>  <span class="keywordtype">float</span> tw = w / (float)vid->memory_copy->w;</div><div class="line"><a name="l00775"></a><span class="lineno"> 775</span>  <span class="keywordtype">float</span> th = h / (<span class="keywordtype">float</span>)vid->memory_copy->h;</div><div class="line"><a name="l00776"></a><span class="lineno"> 776</span> </div><div class="line"><a name="l00777"></a><span class="lineno"> 777</span>  glBegin(GL_QUADS);</div><div class="line"><a name="l00778"></a><span class="lineno"> 778</span>  glTexCoord2f(tx, ty);</div><div class="line"><a name="l00779"></a><span class="lineno"> 779</span>  glVertex2f(dx, dy);</div><div class="line"><a name="l00780"></a><span class="lineno"> 780</span>  glTexCoord2f(tx, ty + th);</div><div class="line"><a name="l00781"></a><span class="lineno"> 781</span>  glVertex2f(dx, dy + h);</div><div class="line"><a name="l00782"></a><span class="lineno"> 782</span>  glTexCoord2f(tx + tw, ty + th);</div><div class="line"><a name="l00783"></a><span class="lineno"> 783</span>  glVertex2f(dx + w, dy + h);</div><div class="line"><a name="l00784"></a><span class="lineno"> 784</span>  glTexCoord2f(tx + tw, ty);</div><div class="line"><a name="l00785"></a><span class="lineno"> 785</span>  glVertex2f(dx + w, dy);</div><div class="line"><a name="l00786"></a><span class="lineno"> 786</span>  glEnd();</div><div class="line"><a name="l00787"></a><span class="lineno"> 787</span>  }</div><div class="line"><a name="l00788"></a><span class="lineno"> 788</span>  <span class="keywordflow">else</span> {</div><div class="line"><a name="l00789"></a><span class="lineno"> 789</span>  glBegin(GL_QUADS);</div><div class="line"><a name="l00790"></a><span class="lineno"> 790</span>  glTexCoord2i(sx, sy);</div><div class="line"><a name="l00791"></a><span class="lineno"> 791</span>  glVertex2f(dx, dy);</div><div class="line"><a name="l00792"></a><span class="lineno"> 792</span>  glTexCoord2i(sx, sy + h);</div><div class="line"><a name="l00793"></a><span class="lineno"> 793</span>  glVertex2f(dx, dy + h);</div><div class="line"><a name="l00794"></a><span class="lineno"> 794</span>  glTexCoord2i(sx + w, sy + h);</div><div class="line"><a name="l00795"></a><span class="lineno"> 795</span>  glVertex2f(dx + w, dy + h);</div><div class="line"><a name="l00796"></a><span class="lineno"> 796</span>  glTexCoord2i(sx + w, sy);</div><div class="line"><a name="l00797"></a><span class="lineno"> 797</span>  glVertex2f(dx + w, dy);</div><div class="line"><a name="l00798"></a><span class="lineno"> 798</span>  glEnd();</div><div class="line"><a name="l00799"></a><span class="lineno"> 799</span>  }</div><div class="line"><a name="l00800"></a><span class="lineno"> 800</span> </div><div class="line"><a name="l00801"></a><span class="lineno"> 801</span>  glBindTexture(vid->target, 0);</div><div class="line"><a name="l00802"></a><span class="lineno"> 802</span>  glDisable(vid->target);</div><div class="line"><a name="l00803"></a><span class="lineno"> 803</span> </div><div class="line"><a name="l00804"></a><span class="lineno"> 804</span>  vid = vid->next;</div><div class="line"><a name="l00805"></a><span class="lineno"> 805</span>  }</div><div class="line"><a name="l00806"></a><span class="lineno"> 806</span>  </div><div class="line"><a name="l00807"></a><span class="lineno"> 807</span>  glColor4fv(current_color);</div><div class="line"><a name="l00808"></a><span class="lineno"> 808</span>  }</div><div class="line"><a name="l00809"></a><span class="lineno"> 809</span>  <span class="comment">/* screen -> video */</span></div><div class="line"><a name="l00810"></a><span class="lineno"> 810</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (is_screen_bitmap(source) && is_video_bitmap(dest)) {</div><div class="line"><a name="l00811"></a><span class="lineno"> 811</span>  </div><div class="line"><a name="l00812"></a><span class="lineno"> 812</span>  AGL_VIDEO_BITMAP *vid;</div><div class="line"><a name="l00813"></a><span class="lineno"> 813</span>  BITMAP *source_parent = source;</div><div class="line"><a name="l00814"></a><span class="lineno"> 814</span> </div><div class="line"><a name="l00815"></a><span class="lineno"> 815</span>  <span class="keywordflow">while</span> (source_parent->id & BMP_ID_SUB) {</div><div class="line"><a name="l00816"></a><span class="lineno"> 816</span>  source_parent = (BITMAP *)source_parent->extra;</div><div class="line"><a name="l00817"></a><span class="lineno"> 817</span>  }</div><div class="line"><a name="l00818"></a><span class="lineno"> 818</span> </div><div class="line"><a name="l00819"></a><span class="lineno"> 819</span>  vid = dest->extra;</div><div class="line"><a name="l00820"></a><span class="lineno"> 820</span> </div><div class="line"><a name="l00821"></a><span class="lineno"> 821</span>  <span class="keywordflow">while</span> (vid) {</div><div class="line"><a name="l00822"></a><span class="lineno"> 822</span>  <span class="keywordtype">int</span> sx, sy; <span class="comment">/* source coordinates */</span></div><div class="line"><a name="l00823"></a><span class="lineno"> 823</span>  <span class="keywordtype">int</span> dx, dy; <span class="comment">/* destination coordinates */</span></div><div class="line"><a name="l00824"></a><span class="lineno"> 824</span>  <span class="keywordtype">int</span> w, h;</div><div class="line"><a name="l00825"></a><span class="lineno"> 825</span> </div><div class="line"><a name="l00826"></a><span class="lineno"> 826</span>  <span class="keywordflow">if</span> (dest_x >= vid->x_ofs + vid->memory_copy->w ||</div><div class="line"><a name="l00827"></a><span class="lineno"> 827</span>  dest_y >= vid->y_ofs + vid->memory_copy->h ||</div><div class="line"><a name="l00828"></a><span class="lineno"> 828</span>  vid->x_ofs >= dest_x + width ||</div><div class="line"><a name="l00829"></a><span class="lineno"> 829</span>  vid->y_ofs >= dest_y + height) {</div><div class="line"><a name="l00830"></a><span class="lineno"> 830</span>  vid = vid->next;</div><div class="line"><a name="l00831"></a><span class="lineno"> 831</span>  <span class="keywordflow">continue</span>;</div><div class="line"><a name="l00832"></a><span class="lineno"> 832</span>  }</div><div class="line"><a name="l00833"></a><span class="lineno"> 833</span> </div><div class="line"><a name="l00834"></a><span class="lineno"> 834</span>  dx = MAX(vid->x_ofs, dest_x) - vid->x_ofs;</div><div class="line"><a name="l00835"></a><span class="lineno"> 835</span>  w = MIN(vid->x_ofs + vid->memory_copy->w, dest_x + width)</div><div class="line"><a name="l00836"></a><span class="lineno"> 836</span>  - vid->x_ofs - dx;</div><div class="line"><a name="l00837"></a><span class="lineno"> 837</span>  dy = MAX(vid->y_ofs, dest_y) - vid->y_ofs;</div><div class="line"><a name="l00838"></a><span class="lineno"> 838</span>  h = MIN(vid->y_ofs + vid->memory_copy->h, dest_y + height)</div><div class="line"><a name="l00839"></a><span class="lineno"> 839</span>  - vid->y_ofs - dy;</div><div class="line"><a name="l00840"></a><span class="lineno"> 840</span>  </div><div class="line"><a name="l00841"></a><span class="lineno"> 841</span>  sx = source_x + vid->x_ofs + dx - dest_x;</div><div class="line"><a name="l00842"></a><span class="lineno"> 842</span>  sy = source_y + vid->y_ofs + dy - dest_y;</div><div class="line"><a name="l00843"></a><span class="lineno"> 843</span> </div><div class="line"><a name="l00844"></a><span class="lineno"> 844</span>  <span class="comment">/* We cannot use glCopyTexSubImage2D() here because it will flip the image. */</span></div><div class="line"><a name="l00845"></a><span class="lineno"> 845</span>  allegro_gl_screen_blit_to_memory(source, vid->memory_copy,</div><div class="line"><a name="l00846"></a><span class="lineno"> 846</span>  sx, sy, dx, dy, w, h);</div><div class="line"><a name="l00847"></a><span class="lineno"> 847</span> </div><div class="line"><a name="l00848"></a><span class="lineno"> 848</span>  allegro_gl_video_blit_from_memory(vid->memory_copy, dest, 0, 0,</div><div class="line"><a name="l00849"></a><span class="lineno"> 849</span>  vid->x_ofs, vid->y_ofs, vid->memory_copy->w, vid->memory_copy->h);</div><div class="line"><a name="l00850"></a><span class="lineno"> 850</span> </div><div class="line"><a name="l00851"></a><span class="lineno"> 851</span>  vid = vid->next;</div><div class="line"><a name="l00852"></a><span class="lineno"> 852</span>  }</div><div class="line"><a name="l00853"></a><span class="lineno"> 853</span>  }</div><div class="line"><a name="l00854"></a><span class="lineno"> 854</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (is_video_bitmap(source) && is_video_bitmap(dest)) {</div><div class="line"><a name="l00855"></a><span class="lineno"> 855</span>  allegro_gl_video_blit_to_self(source, dest, source_x, source_y,</div><div class="line"><a name="l00856"></a><span class="lineno"> 856</span>  dest_x, dest_y, width, height);</div><div class="line"><a name="l00857"></a><span class="lineno"> 857</span>  }</div><div class="line"><a name="l00858"></a><span class="lineno"> 858</span> }</div><div class="line"><a name="l00859"></a><span class="lineno"> 859</span> </div><div class="line"><a name="l00860"></a><span class="lineno"> 860</span> </div><div class="line"><a name="l00861"></a><span class="lineno"> 861</span> </div><div class="line"><a name="l00862"></a><span class="lineno"> 862</span> <span class="keywordtype">void</span> allegro_gl_upload_and_display_texture(<span class="keyword">struct</span> BITMAP *source,</div><div class="line"><a name="l00863"></a><span class="lineno"> 863</span>  <span class="keywordtype">int</span> source_x, <span class="keywordtype">int</span> source_y, <span class="keywordtype">int</span> dest_x, <span class="keywordtype">int</span> dest_y, <span class="keywordtype">int</span> width, <span class="keywordtype">int</span> height,</div><div class="line"><a name="l00864"></a><span class="lineno"> 864</span>  <span class="keywordtype">int</span> flip_dir, GLint format, GLint type)</div><div class="line"><a name="l00865"></a><span class="lineno"> 865</span> {</div><div class="line"><a name="l00866"></a><span class="lineno"> 866</span>  <span class="keywordtype">float</span> tx, ty;</div><div class="line"><a name="l00867"></a><span class="lineno"> 867</span>  GLint saved_row_length;</div><div class="line"><a name="l00868"></a><span class="lineno"> 868</span>  <span class="keywordtype">int</span> bytes_per_pixel = BYTES_PER_PIXEL(bitmap_color_depth(source));</div><div class="line"><a name="l00869"></a><span class="lineno"> 869</span>  <span class="keywordtype">int</span> i, j;</div><div class="line"><a name="l00870"></a><span class="lineno"> 870</span>  </div><div class="line"><a name="l00871"></a><span class="lineno"> 871</span>  glEnable(GL_ALPHA_TEST);</div><div class="line"><a name="l00872"></a><span class="lineno"> 872</span>  glAlphaFunc(GL_GREATER, 0.0f);</div><div class="line"><a name="l00873"></a><span class="lineno"> 873</span> </div><div class="line"><a name="l00874"></a><span class="lineno"> 874</span>  glEnable(GL_TEXTURE_2D);</div><div class="line"><a name="l00875"></a><span class="lineno"> 875</span>  glBindTexture(GL_TEXTURE_2D, __allegro_gl_pool_texture);</div><div class="line"><a name="l00876"></a><span class="lineno"> 876</span> </div><div class="line"><a name="l00877"></a><span class="lineno"> 877</span>  glGetIntegerv(GL_UNPACK_ROW_LENGTH, &saved_row_length);</div><div class="line"><a name="l00878"></a><span class="lineno"> 878</span>  glPixelStorei(GL_UNPACK_ALIGNMENT, 1);</div><div class="line"><a name="l00879"></a><span class="lineno"> 879</span> </div><div class="line"><a name="l00880"></a><span class="lineno"> 880</span>  glPixelStorei(GL_UNPACK_ROW_LENGTH,</div><div class="line"><a name="l00881"></a><span class="lineno"> 881</span>  (source->line[1] - source->line[0]) / bytes_per_pixel);</div><div class="line"><a name="l00882"></a><span class="lineno"> 882</span>  </div><div class="line"><a name="l00883"></a><span class="lineno"> 883</span>  <span class="keywordflow">for</span> (i = 0; i <= abs(width) / 256; i++) {</div><div class="line"><a name="l00884"></a><span class="lineno"> 884</span>  <span class="keywordflow">for</span> (j = 0; j <= abs(height) / 256; j++) {</div><div class="line"><a name="l00885"></a><span class="lineno"> 885</span> </div><div class="line"><a name="l00886"></a><span class="lineno"> 886</span>  <span class="keywordtype">void</span> *data = source->line[source_y + j * 256]</div><div class="line"><a name="l00887"></a><span class="lineno"> 887</span>  + (source_x + i * 256) * bytes_per_pixel;</div><div class="line"><a name="l00888"></a><span class="lineno"> 888</span>  <span class="keywordtype">int</span> w = abs(width) - i * 256;</div><div class="line"><a name="l00889"></a><span class="lineno"> 889</span>  <span class="keywordtype">int</span> h = abs(height) - j * 256;</div><div class="line"><a name="l00890"></a><span class="lineno"> 890</span>  <span class="keywordtype">int</span> dx = dest_x + i * 256;</div><div class="line"><a name="l00891"></a><span class="lineno"> 891</span>  <span class="keywordtype">int</span> dy = dest_y + j * 256;</div><div class="line"><a name="l00892"></a><span class="lineno"> 892</span> </div><div class="line"><a name="l00893"></a><span class="lineno"> 893</span>  w = (w & -256) ? 256 : w;</div><div class="line"><a name="l00894"></a><span class="lineno"> 894</span>  h = (h & -256) ? 256 : h;</div><div class="line"><a name="l00895"></a><span class="lineno"> 895</span> </div><div class="line"><a name="l00896"></a><span class="lineno"> 896</span>  glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, w, h, format, type, data);</div><div class="line"><a name="l00897"></a><span class="lineno"> 897</span> </div><div class="line"><a name="l00898"></a><span class="lineno"> 898</span>  tx = (float)w / 256.;</div><div class="line"><a name="l00899"></a><span class="lineno"> 899</span>  ty = (float)h / 256.;</div><div class="line"><a name="l00900"></a><span class="lineno"> 900</span> </div><div class="line"><a name="l00901"></a><span class="lineno"> 901</span>  <span class="keywordflow">if</span> (flip_dir & AGL_H_FLIP) {</div><div class="line"><a name="l00902"></a><span class="lineno"> 902</span>  dx = 2*dest_x + width - dx;</div><div class="line"><a name="l00903"></a><span class="lineno"> 903</span>  w = -w;</div><div class="line"><a name="l00904"></a><span class="lineno"> 904</span>  }</div><div class="line"><a name="l00905"></a><span class="lineno"> 905</span> </div><div class="line"><a name="l00906"></a><span class="lineno"> 906</span>  <span class="keywordflow">if</span> (flip_dir & AGL_V_FLIP) {</div><div class="line"><a name="l00907"></a><span class="lineno"> 907</span>  dy = 2*dest_y + height - dy;</div><div class="line"><a name="l00908"></a><span class="lineno"> 908</span>  h = -h;</div><div class="line"><a name="l00909"></a><span class="lineno"> 909</span>  }</div><div class="line"><a name="l00910"></a><span class="lineno"> 910</span> </div><div class="line"><a name="l00911"></a><span class="lineno"> 911</span>  <span class="keywordflow">if</span> (width < 0) w = -w;</div><div class="line"><a name="l00912"></a><span class="lineno"> 912</span>  <span class="keywordflow">if</span> (height < 0) h = -h;</div><div class="line"><a name="l00913"></a><span class="lineno"> 913</span> </div><div class="line"><a name="l00914"></a><span class="lineno"> 914</span>  glBegin(GL_QUADS);</div><div class="line"><a name="l00915"></a><span class="lineno"> 915</span>  glTexCoord2f(0., 0.);</div><div class="line"><a name="l00916"></a><span class="lineno"> 916</span>  glVertex2i(dx, dy);</div><div class="line"><a name="l00917"></a><span class="lineno"> 917</span>  glTexCoord2f(0., ty);</div><div class="line"><a name="l00918"></a><span class="lineno"> 918</span>  glVertex2i(dx, dy + h);</div><div class="line"><a name="l00919"></a><span class="lineno"> 919</span>  glTexCoord2f(tx, ty);</div><div class="line"><a name="l00920"></a><span class="lineno"> 920</span>  glVertex2i(dx + w, dy + h);</div><div class="line"><a name="l00921"></a><span class="lineno"> 921</span>  glTexCoord2f(tx, 0.);</div><div class="line"><a name="l00922"></a><span class="lineno"> 922</span>  glVertex2i(dx + w, dy);</div><div class="line"><a name="l00923"></a><span class="lineno"> 923</span>  glEnd();</div><div class="line"><a name="l00924"></a><span class="lineno"> 924</span>  }</div><div class="line"><a name="l00925"></a><span class="lineno"> 925</span>  }</div><div class="line"><a name="l00926"></a><span class="lineno"> 926</span> </div><div class="line"><a name="l00927"></a><span class="lineno"> 927</span>  <span class="comment">/* Restore state */</span></div><div class="line"><a name="l00928"></a><span class="lineno"> 928</span>  glPixelStorei(GL_UNPACK_ROW_LENGTH, saved_row_length);</div><div class="line"><a name="l00929"></a><span class="lineno"> 929</span>  glBindTexture(GL_TEXTURE_2D, 0);</div><div class="line"><a name="l00930"></a><span class="lineno"> 930</span>  glDisable(GL_TEXTURE_2D);</div><div class="line"><a name="l00931"></a><span class="lineno"> 931</span>  glDisable(GL_ALPHA_TEST);</div><div class="line"><a name="l00932"></a><span class="lineno"> 932</span> </div><div class="line"><a name="l00933"></a><span class="lineno"> 933</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00934"></a><span class="lineno"> 934</span> }</div><div class="line"><a name="l00935"></a><span class="lineno"> 935</span> </div><div class="line"><a name="l00936"></a><span class="lineno"> 936</span> </div><div class="line"><a name="l00937"></a><span class="lineno"> 937</span> </div><div class="line"><a name="l00938"></a><span class="lineno"> 938</span> <span class="keyword">static</span> <span class="keywordtype">void</span> do_screen_masked_blit_standard(GLint format, GLint type, <span class="keyword">struct</span> BITMAP *temp, <span class="keywordtype">int</span> source_x, <span class="keywordtype">int</span> source_y, <span class="keywordtype">int</span> dest_x, <span class="keywordtype">int</span> dest_y, <span class="keywordtype">int</span> width, <span class="keywordtype">int</span> height, <span class="keywordtype">int</span> flip_dir, <span class="keywordtype">int</span> blit_type)</div><div class="line"><a name="l00939"></a><span class="lineno"> 939</span> {</div><div class="line"><a name="l00940"></a><span class="lineno"> 940</span>  glPushAttrib(GL_COLOR_BUFFER_BIT | GL_ENABLE_BIT);</div><div class="line"><a name="l00941"></a><span class="lineno"> 941</span> </div><div class="line"><a name="l00942"></a><span class="lineno"> 942</span>  <span class="keywordflow">if</span> (blit_type & AGL_NO_ROTATION) {</div><div class="line"><a name="l00943"></a><span class="lineno"> 943</span>  GLint saved_row_length;</div><div class="line"><a name="l00944"></a><span class="lineno"> 944</span>  <span class="keywordtype">float</span> dx = dest_x, dy = dest_y;</div><div class="line"><a name="l00945"></a><span class="lineno"> 945</span>  GLfloat zoom_x, zoom_y, old_zoom_x, old_zoom_y;</div><div class="line"><a name="l00946"></a><span class="lineno"> 946</span> </div><div class="line"><a name="l00947"></a><span class="lineno"> 947</span>  glEnable(GL_ALPHA_TEST);</div><div class="line"><a name="l00948"></a><span class="lineno"> 948</span>  glAlphaFunc(GL_GREATER, 0.0f);</div><div class="line"><a name="l00949"></a><span class="lineno"> 949</span> </div><div class="line"><a name="l00950"></a><span class="lineno"> 950</span>  glGetIntegerv(GL_UNPACK_ROW_LENGTH, &saved_row_length);</div><div class="line"><a name="l00951"></a><span class="lineno"> 951</span>  glGetFloatv(GL_ZOOM_X, &old_zoom_x);</div><div class="line"><a name="l00952"></a><span class="lineno"> 952</span>  glGetFloatv(GL_ZOOM_Y, &old_zoom_y);</div><div class="line"><a name="l00953"></a><span class="lineno"> 953</span> </div><div class="line"><a name="l00954"></a><span class="lineno"> 954</span>  <span class="keywordflow">if</span> (flip_dir & AGL_H_FLIP) {</div><div class="line"><a name="l00955"></a><span class="lineno"> 955</span>  zoom_x = -1.0f; </div><div class="line"><a name="l00956"></a><span class="lineno"> 956</span>  <span class="comment">/* Without the -0.5 below, we get an invalid position,</span></div><div class="line"><a name="l00957"></a><span class="lineno"> 957</span> <span class="comment"> * and the operation is ignored by OpenGL. */</span></div><div class="line"><a name="l00958"></a><span class="lineno"> 958</span>  dx += abs(width) - 0.5;</div><div class="line"><a name="l00959"></a><span class="lineno"> 959</span>  }</div><div class="line"><a name="l00960"></a><span class="lineno"> 960</span>  <span class="keywordflow">else</span> {</div><div class="line"><a name="l00961"></a><span class="lineno"> 961</span>  zoom_x = (float) width / abs(width);</div><div class="line"><a name="l00962"></a><span class="lineno"> 962</span>  }</div><div class="line"><a name="l00963"></a><span class="lineno"> 963</span> </div><div class="line"><a name="l00964"></a><span class="lineno"> 964</span>  <span class="keywordflow">if</span> (flip_dir & AGL_V_FLIP) {</div><div class="line"><a name="l00965"></a><span class="lineno"> 965</span>  zoom_y = 1.0f;</div><div class="line"><a name="l00966"></a><span class="lineno"> 966</span>  dy += abs(height) - 0.5;</div><div class="line"><a name="l00967"></a><span class="lineno"> 967</span>  }</div><div class="line"><a name="l00968"></a><span class="lineno"> 968</span>  <span class="keywordflow">else</span> {</div><div class="line"><a name="l00969"></a><span class="lineno"> 969</span>  zoom_y = -1.0f * width / abs(width);</div><div class="line"><a name="l00970"></a><span class="lineno"> 970</span>  }</div><div class="line"><a name="l00971"></a><span class="lineno"> 971</span> </div><div class="line"><a name="l00972"></a><span class="lineno"> 972</span>  glRasterPos2f(dx, dy);</div><div class="line"><a name="l00973"></a><span class="lineno"> 973</span>  glPixelZoom(zoom_x, zoom_y);</div><div class="line"><a name="l00974"></a><span class="lineno"> 974</span>  glPixelStorei(GL_UNPACK_ALIGNMENT, 1);</div><div class="line"><a name="l00975"></a><span class="lineno"> 975</span>  glPixelStorei(GL_UNPACK_ROW_LENGTH,</div><div class="line"><a name="l00976"></a><span class="lineno"> 976</span>  (temp->line[1] - temp->line[0])</div><div class="line"><a name="l00977"></a><span class="lineno"> 977</span>  / BYTES_PER_PIXEL(bitmap_color_depth(temp)));</div><div class="line"><a name="l00978"></a><span class="lineno"> 978</span> </div><div class="line"><a name="l00979"></a><span class="lineno"> 979</span>  glDrawPixels(abs(width), abs(height), format, type, temp->line[0]);</div><div class="line"><a name="l00980"></a><span class="lineno"> 980</span>  </div><div class="line"><a name="l00981"></a><span class="lineno"> 981</span>  glPixelStorei(GL_UNPACK_ROW_LENGTH, saved_row_length);</div><div class="line"><a name="l00982"></a><span class="lineno"> 982</span>  glPixelZoom(old_zoom_x, old_zoom_y);</div><div class="line"><a name="l00983"></a><span class="lineno"> 983</span>  }</div><div class="line"><a name="l00984"></a><span class="lineno"> 984</span>  <span class="keywordflow">else</span> {</div><div class="line"><a name="l00985"></a><span class="lineno"> 985</span>  allegro_gl_upload_and_display_texture(temp, 0, 0, dest_x, dest_y, width, height,</div><div class="line"><a name="l00986"></a><span class="lineno"> 986</span>  flip_dir, format, type);</div><div class="line"><a name="l00987"></a><span class="lineno"> 987</span>  }</div><div class="line"><a name="l00988"></a><span class="lineno"> 988</span> </div><div class="line"><a name="l00989"></a><span class="lineno"> 989</span>  glPopAttrib();</div><div class="line"><a name="l00990"></a><span class="lineno"> 990</span> }</div><div class="line"><a name="l00991"></a><span class="lineno"> 991</span> </div><div class="line"><a name="l00992"></a><span class="lineno"> 992</span> </div><div class="line"><a name="l00993"></a><span class="lineno"> 993</span> </div><div class="line"><a name="l00994"></a><span class="lineno"> 994</span> <span class="keyword">static</span> <span class="keywordtype">void</span> screen_masked_blit_standard(<span class="keyword">struct</span> BITMAP *source,</div><div class="line"><a name="l00995"></a><span class="lineno"> 995</span>  <span class="keywordtype">int</span> source_x, <span class="keywordtype">int</span> source_y, <span class="keywordtype">int</span> dest_x, <span class="keywordtype">int</span> dest_y, <span class="keywordtype">int</span> width, <span class="keywordtype">int</span> height,</div><div class="line"><a name="l00996"></a><span class="lineno"> 996</span>  <span class="keywordtype">int</span> flip_dir, <span class="keywordtype">int</span> blit_type)</div><div class="line"><a name="l00997"></a><span class="lineno"> 997</span> {</div><div class="line"><a name="l00998"></a><span class="lineno"> 998</span>  BITMAP *temp = NULL;</div><div class="line"><a name="l00999"></a><span class="lineno"> 999</span> </div><div class="line"><a name="l01000"></a><span class="lineno"> 1000</span>  GLint format, type;</div><div class="line"><a name="l01001"></a><span class="lineno"> 1001</span>  </div><div class="line"><a name="l01002"></a><span class="lineno"> 1002</span>  format = __allegro_gl_get_bitmap_color_format(source, <a class="code" href="group__texture.html#gaba184d573c65f33b35d1d57936607d08">AGL_TEXTURE_MASKED</a>);</div><div class="line"><a name="l01003"></a><span class="lineno"> 1003</span>  type = __allegro_gl_get_bitmap_type(source, <a class="code" href="group__texture.html#gaba184d573c65f33b35d1d57936607d08">AGL_TEXTURE_MASKED</a>);</div><div class="line"><a name="l01004"></a><span class="lineno"> 1004</span> </div><div class="line"><a name="l01005"></a><span class="lineno"> 1005</span>  temp = __allegro_gl_munge_bitmap(<a class="code" href="group__texture.html#gaba184d573c65f33b35d1d57936607d08">AGL_TEXTURE_MASKED</a>, source,</div><div class="line"><a name="l01006"></a><span class="lineno"> 1006</span>  source_x, source_y, abs(width), abs(height),</div><div class="line"><a name="l01007"></a><span class="lineno"> 1007</span>  &type, &format);</div><div class="line"><a name="l01008"></a><span class="lineno"> 1008</span> </div><div class="line"><a name="l01009"></a><span class="lineno"> 1009</span>  <span class="keywordflow">if</span> (temp) {</div><div class="line"><a name="l01010"></a><span class="lineno"> 1010</span>  source = temp;</div><div class="line"><a name="l01011"></a><span class="lineno"> 1011</span>  }</div><div class="line"><a name="l01012"></a><span class="lineno"> 1012</span> </div><div class="line"><a name="l01013"></a><span class="lineno"> 1013</span>  do_screen_masked_blit_standard(format, type, source, source_x, source_y,</div><div class="line"><a name="l01014"></a><span class="lineno"> 1014</span>  dest_x, dest_y, width, height, flip_dir, blit_type);</div><div class="line"><a name="l01015"></a><span class="lineno"> 1015</span> </div><div class="line"><a name="l01016"></a><span class="lineno"> 1016</span>  <span class="keywordflow">if</span> (temp) {</div><div class="line"><a name="l01017"></a><span class="lineno"> 1017</span>  destroy_bitmap(temp);</div><div class="line"><a name="l01018"></a><span class="lineno"> 1018</span>  }</div><div class="line"><a name="l01019"></a><span class="lineno"> 1019</span> </div><div class="line"><a name="l01020"></a><span class="lineno"> 1020</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l01021"></a><span class="lineno"> 1021</span> }</div><div class="line"><a name="l01022"></a><span class="lineno"> 1022</span> </div><div class="line"><a name="l01023"></a><span class="lineno"> 1023</span> </div><div class="line"><a name="l01024"></a><span class="lineno"> 1024</span> </div><div class="line"><a name="l01025"></a><span class="lineno"> 1025</span> <span class="keyword">static</span> <span class="keywordtype">void</span> __allegro_gl_init_nv_register_combiners(BITMAP *bmp)</div><div class="line"><a name="l01026"></a><span class="lineno"> 1026</span> {</div><div class="line"><a name="l01027"></a><span class="lineno"> 1027</span>  GLfloat mask_color[4];</div><div class="line"><a name="l01028"></a><span class="lineno"> 1028</span>  <span class="keywordtype">int</span> depth = bitmap_color_depth(bmp);</div><div class="line"><a name="l01029"></a><span class="lineno"> 1029</span>  <span class="keywordtype">int</span> color = bitmap_mask_color(bmp);</div><div class="line"><a name="l01030"></a><span class="lineno"> 1030</span> </div><div class="line"><a name="l01031"></a><span class="lineno"> 1031</span>  mask_color[0] = getr_depth(depth, color) / 255.;</div><div class="line"><a name="l01032"></a><span class="lineno"> 1032</span>  mask_color[1] = getg_depth(depth, color) / 255.;</div><div class="line"><a name="l01033"></a><span class="lineno"> 1033</span>  mask_color[2] = getb_depth(depth, color) / 255.;</div><div class="line"><a name="l01034"></a><span class="lineno"> 1034</span>  mask_color[3] = 0.;</div><div class="line"><a name="l01035"></a><span class="lineno"> 1035</span> </div><div class="line"><a name="l01036"></a><span class="lineno"> 1036</span>  glCombinerParameterfvNV(GL_CONSTANT_COLOR0_NV, mask_color);</div><div class="line"><a name="l01037"></a><span class="lineno"> 1037</span>  glCombinerParameteriNV(GL_NUM_GENERAL_COMBINERS_NV, 2);</div><div class="line"><a name="l01038"></a><span class="lineno"> 1038</span>  glEnable(GL_REGISTER_COMBINERS_NV);</div><div class="line"><a name="l01039"></a><span class="lineno"> 1039</span> </div><div class="line"><a name="l01040"></a><span class="lineno"> 1040</span>  glCombinerInputNV(GL_COMBINER0_NV, GL_RGB, GL_VARIABLE_A_NV,</div><div class="line"><a name="l01041"></a><span class="lineno"> 1041</span>  GL_TEXTURE0_ARB, GL_SIGNED_IDENTITY_NV, GL_RGB);</div><div class="line"><a name="l01042"></a><span class="lineno"> 1042</span>  glCombinerInputNV(GL_COMBINER0_NV, GL_RGB, GL_VARIABLE_B_NV,</div><div class="line"><a name="l01043"></a><span class="lineno"> 1043</span>  GL_ZERO, GL_UNSIGNED_INVERT_NV, GL_RGB);</div><div class="line"><a name="l01044"></a><span class="lineno"> 1044</span>  glCombinerInputNV(GL_COMBINER0_NV, GL_RGB, GL_VARIABLE_C_NV,</div><div class="line"><a name="l01045"></a><span class="lineno"> 1045</span>  GL_CONSTANT_COLOR0_NV, GL_SIGNED_IDENTITY_NV, GL_RGB);</div><div class="line"><a name="l01046"></a><span class="lineno"> 1046</span>  glCombinerInputNV(GL_COMBINER0_NV, GL_RGB, GL_VARIABLE_D_NV,</div><div class="line"><a name="l01047"></a><span class="lineno"> 1047</span>  GL_ZERO, GL_EXPAND_NORMAL_NV, GL_RGB);</div><div class="line"><a name="l01048"></a><span class="lineno"> 1048</span>  glCombinerOutputNV(GL_COMBINER0_NV, GL_RGB, GL_DISCARD_NV,</div><div class="line"><a name="l01049"></a><span class="lineno"> 1049</span>  GL_DISCARD_NV, GL_SPARE0_NV, GL_NONE, GL_NONE,</div><div class="line"><a name="l01050"></a><span class="lineno"> 1050</span>  GL_FALSE, GL_FALSE, GL_FALSE);</div><div class="line"><a name="l01051"></a><span class="lineno"> 1051</span> </div><div class="line"><a name="l01052"></a><span class="lineno"> 1052</span>  glCombinerInputNV(GL_COMBINER1_NV, GL_RGB, GL_VARIABLE_A_NV,</div><div class="line"><a name="l01053"></a><span class="lineno"> 1053</span>  GL_SPARE0_NV, GL_SIGNED_IDENTITY_NV, GL_RGB);</div><div class="line"><a name="l01054"></a><span class="lineno"> 1054</span>  glCombinerInputNV(GL_COMBINER1_NV, GL_RGB, GL_VARIABLE_B_NV,</div><div class="line"><a name="l01055"></a><span class="lineno"> 1055</span>  GL_SPARE0_NV, GL_SIGNED_IDENTITY_NV, GL_RGB);</div><div class="line"><a name="l01056"></a><span class="lineno"> 1056</span>  glCombinerOutputNV(GL_COMBINER1_NV, GL_RGB, GL_SPARE1_NV,</div><div class="line"><a name="l01057"></a><span class="lineno"> 1057</span>  GL_DISCARD_NV, GL_DISCARD_NV, GL_NONE, GL_NONE,</div><div class="line"><a name="l01058"></a><span class="lineno"> 1058</span>  GL_TRUE, GL_FALSE, GL_FALSE);</div><div class="line"><a name="l01059"></a><span class="lineno"> 1059</span> </div><div class="line"><a name="l01060"></a><span class="lineno"> 1060</span>  glFinalCombinerInputNV(GL_VARIABLE_A_NV, GL_TEXTURE0_ARB,</div><div class="line"><a name="l01061"></a><span class="lineno"> 1061</span>  GL_UNSIGNED_IDENTITY_NV, GL_RGB);</div><div class="line"><a name="l01062"></a><span class="lineno"> 1062</span>  glFinalCombinerInputNV(GL_VARIABLE_B_NV, GL_ZERO,</div><div class="line"><a name="l01063"></a><span class="lineno"> 1063</span>  GL_UNSIGNED_INVERT_NV, GL_RGB);</div><div class="line"><a name="l01064"></a><span class="lineno"> 1064</span>  glFinalCombinerInputNV(GL_VARIABLE_C_NV, GL_ZERO,</div><div class="line"><a name="l01065"></a><span class="lineno"> 1065</span>  GL_UNSIGNED_IDENTITY_NV, GL_RGB);</div><div class="line"><a name="l01066"></a><span class="lineno"> 1066</span>  glFinalCombinerInputNV(GL_VARIABLE_D_NV, GL_ZERO,</div><div class="line"><a name="l01067"></a><span class="lineno"> 1067</span>  GL_UNSIGNED_IDENTITY_NV, GL_RGB);</div><div class="line"><a name="l01068"></a><span class="lineno"> 1068</span>  glFinalCombinerInputNV(GL_VARIABLE_G_NV, GL_SPARE1_NV,</div><div class="line"><a name="l01069"></a><span class="lineno"> 1069</span>  GL_UNSIGNED_IDENTITY_NV, GL_BLUE);</div><div class="line"><a name="l01070"></a><span class="lineno"> 1070</span> </div><div class="line"><a name="l01071"></a><span class="lineno"> 1071</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l01072"></a><span class="lineno"> 1072</span> }</div><div class="line"><a name="l01073"></a><span class="lineno"> 1073</span> </div><div class="line"><a name="l01074"></a><span class="lineno"> 1074</span> </div><div class="line"><a name="l01075"></a><span class="lineno"> 1075</span> </div><div class="line"><a name="l01076"></a><span class="lineno"> 1076</span> <span class="keyword">static</span> <span class="keywordtype">void</span> screen_masked_blit_nv_register(<span class="keyword">struct</span> BITMAP *source,</div><div class="line"><a name="l01077"></a><span class="lineno"> 1077</span>  <span class="keywordtype">int</span> source_x, <span class="keywordtype">int</span> source_y, <span class="keywordtype">int</span> dest_x, <span class="keywordtype">int</span> dest_y, <span class="keywordtype">int</span> width, <span class="keywordtype">int</span> height,</div><div class="line"><a name="l01078"></a><span class="lineno"> 1078</span>  <span class="keywordtype">int</span> flip_dir, <span class="keywordtype">int</span> blit_type)</div><div class="line"><a name="l01079"></a><span class="lineno"> 1079</span> {</div><div class="line"><a name="l01080"></a><span class="lineno"> 1080</span>  BITMAP *temp = NULL;</div><div class="line"><a name="l01081"></a><span class="lineno"> 1081</span>  GLint type = __allegro_gl_get_bitmap_type(source, 0);</div><div class="line"><a name="l01082"></a><span class="lineno"> 1082</span>  GLint format = __allegro_gl_get_bitmap_color_format(source, 0);</div><div class="line"><a name="l01083"></a><span class="lineno"> 1083</span> </div><div class="line"><a name="l01084"></a><span class="lineno"> 1084</span>  <span class="keywordflow">if</span> (type == -1) {</div><div class="line"><a name="l01085"></a><span class="lineno"> 1085</span>  temp = create_bitmap_ex(24, width, height);</div><div class="line"><a name="l01086"></a><span class="lineno"> 1086</span>  <span class="keywordflow">if</span> (!temp) {</div><div class="line"><a name="l01087"></a><span class="lineno"> 1087</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l01088"></a><span class="lineno"> 1088</span>  }</div><div class="line"><a name="l01089"></a><span class="lineno"> 1089</span>  blit(source, temp, source_x, source_y, 0, 0, width, height);</div><div class="line"><a name="l01090"></a><span class="lineno"> 1090</span>  source = temp;</div><div class="line"><a name="l01091"></a><span class="lineno"> 1091</span>  source_x = 0;</div><div class="line"><a name="l01092"></a><span class="lineno"> 1092</span>  source_y = 0;</div><div class="line"><a name="l01093"></a><span class="lineno"> 1093</span> </div><div class="line"><a name="l01094"></a><span class="lineno"> 1094</span>  type = __allegro_gl_get_bitmap_type(source, 0);</div><div class="line"><a name="l01095"></a><span class="lineno"> 1095</span>  format = __allegro_gl_get_bitmap_color_format(source, 0);</div><div class="line"><a name="l01096"></a><span class="lineno"> 1096</span>  }</div><div class="line"><a name="l01097"></a><span class="lineno"> 1097</span> </div><div class="line"><a name="l01098"></a><span class="lineno"> 1098</span>  glPushAttrib(GL_TEXTURE_BIT | GL_COLOR_BUFFER_BIT | GL_ENABLE_BIT);</div><div class="line"><a name="l01099"></a><span class="lineno"> 1099</span>  __allegro_gl_init_nv_register_combiners(source);</div><div class="line"><a name="l01100"></a><span class="lineno"> 1100</span> </div><div class="line"><a name="l01101"></a><span class="lineno"> 1101</span>  allegro_gl_upload_and_display_texture(source, source_x, source_y, dest_x, dest_y,</div><div class="line"><a name="l01102"></a><span class="lineno"> 1102</span>  width, height, flip_dir, format, type);</div><div class="line"><a name="l01103"></a><span class="lineno"> 1103</span> </div><div class="line"><a name="l01104"></a><span class="lineno"> 1104</span>  glPopAttrib();</div><div class="line"><a name="l01105"></a><span class="lineno"> 1105</span> </div><div class="line"><a name="l01106"></a><span class="lineno"> 1106</span>  <span class="keywordflow">if</span> (temp) {</div><div class="line"><a name="l01107"></a><span class="lineno"> 1107</span>  destroy_bitmap(temp);</div><div class="line"><a name="l01108"></a><span class="lineno"> 1108</span>  }</div><div class="line"><a name="l01109"></a><span class="lineno"> 1109</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l01110"></a><span class="lineno"> 1110</span> }</div><div class="line"><a name="l01111"></a><span class="lineno"> 1111</span> </div><div class="line"><a name="l01112"></a><span class="lineno"> 1112</span> </div><div class="line"><a name="l01113"></a><span class="lineno"> 1113</span> </div><div class="line"><a name="l01114"></a><span class="lineno"> 1114</span> <span class="keyword">static</span> <span class="keywordtype">void</span> __allegro_gl_init_combine_textures(BITMAP *bmp)</div><div class="line"><a name="l01115"></a><span class="lineno"> 1115</span> {</div><div class="line"><a name="l01116"></a><span class="lineno"> 1116</span>  GLubyte mask_color[4];</div><div class="line"><a name="l01117"></a><span class="lineno"> 1117</span> </div><div class="line"><a name="l01118"></a><span class="lineno"> 1118</span>  split_color(bitmap_mask_color(bmp), &mask_color[0], &mask_color[1],</div><div class="line"><a name="l01119"></a><span class="lineno"> 1119</span>  &mask_color[2], &mask_color[3], bitmap_color_depth(bmp));</div><div class="line"><a name="l01120"></a><span class="lineno"> 1120</span>  glColor4ubv(mask_color);</div><div class="line"><a name="l01121"></a><span class="lineno"> 1121</span> </div><div class="line"><a name="l01122"></a><span class="lineno"> 1122</span>  glActiveTexture(GL_TEXTURE0);</div><div class="line"><a name="l01123"></a><span class="lineno"> 1123</span>  glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_ARB);</div><div class="line"><a name="l01124"></a><span class="lineno"> 1124</span>  glEnable(GL_TEXTURE_2D);</div><div class="line"><a name="l01125"></a><span class="lineno"> 1125</span>  glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB_ARB, GL_ADD_SIGNED_ARB);</div><div class="line"><a name="l01126"></a><span class="lineno"> 1126</span>  glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB_ARB, GL_TEXTURE);</div><div class="line"><a name="l01127"></a><span class="lineno"> 1127</span>  glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_RGB_ARB, GL_PRIMARY_COLOR);</div><div class="line"><a name="l01128"></a><span class="lineno"> 1128</span>  glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_RGB_ARB, GL_ONE_MINUS_SRC_COLOR);</div><div class="line"><a name="l01129"></a><span class="lineno"> 1129</span> </div><div class="line"><a name="l01130"></a><span class="lineno"> 1130</span>  <span class="comment">/* Dot the result of the subtract with itself. Store it in the alpha </span></div><div class="line"><a name="l01131"></a><span class="lineno"> 1131</span> <span class="comment"> * component. The alpha should then be 0 if the color fragment was equal to </span></div><div class="line"><a name="l01132"></a><span class="lineno"> 1132</span> <span class="comment"> * the mask color, or >0 otherwise.</span></div><div class="line"><a name="l01133"></a><span class="lineno"> 1133</span> <span class="comment"> */</span></div><div class="line"><a name="l01134"></a><span class="lineno"> 1134</span>  glActiveTexture(GL_TEXTURE1);</div><div class="line"><a name="l01135"></a><span class="lineno"> 1135</span>  glEnable(GL_TEXTURE_2D);</div><div class="line"><a name="l01136"></a><span class="lineno"> 1136</span>  glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_ARB);</div><div class="line"><a name="l01137"></a><span class="lineno"> 1137</span>  glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB_ARB, GL_DOT3_RGBA_ARB);</div><div class="line"><a name="l01138"></a><span class="lineno"> 1138</span>  glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB_ARB, GL_PREVIOUS_ARB);</div><div class="line"><a name="l01139"></a><span class="lineno"> 1139</span>  glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_RGB_ARB, GL_PREVIOUS_ARB);</div><div class="line"><a name="l01140"></a><span class="lineno"> 1140</span> </div><div class="line"><a name="l01141"></a><span class="lineno"> 1141</span>  <span class="comment">/* Put the original RGB value in its place */</span></div><div class="line"><a name="l01142"></a><span class="lineno"> 1142</span> </div><div class="line"><a name="l01143"></a><span class="lineno"> 1143</span>  glActiveTexture(GL_TEXTURE2);</div><div class="line"><a name="l01144"></a><span class="lineno"> 1144</span>  glEnable(GL_TEXTURE_2D);</div><div class="line"><a name="l01145"></a><span class="lineno"> 1145</span>  glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_ARB);</div><div class="line"><a name="l01146"></a><span class="lineno"> 1146</span>  glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB_ARB, GL_REPLACE);</div><div class="line"><a name="l01147"></a><span class="lineno"> 1147</span>  glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB_ARB, GL_TEXTURE);</div><div class="line"><a name="l01148"></a><span class="lineno"> 1148</span>  glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_ALPHA_ARB, GL_REPLACE);</div><div class="line"><a name="l01149"></a><span class="lineno"> 1149</span>  glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_ALPHA_ARB, GL_PREVIOUS_ARB);</div><div class="line"><a name="l01150"></a><span class="lineno"> 1150</span> </div><div class="line"><a name="l01151"></a><span class="lineno"> 1151</span>  glActiveTexture(GL_TEXTURE0);</div><div class="line"><a name="l01152"></a><span class="lineno"> 1152</span> </div><div class="line"><a name="l01153"></a><span class="lineno"> 1153</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l01154"></a><span class="lineno"> 1154</span> }</div><div class="line"><a name="l01155"></a><span class="lineno"> 1155</span> </div><div class="line"><a name="l01156"></a><span class="lineno"> 1156</span> </div><div class="line"><a name="l01157"></a><span class="lineno"> 1157</span> </div><div class="line"><a name="l01158"></a><span class="lineno"> 1158</span> <span class="keyword">static</span> <span class="keywordtype">void</span> screen_masked_blit_combine_tex(<span class="keyword">struct</span> BITMAP *source,</div><div class="line"><a name="l01159"></a><span class="lineno"> 1159</span>  <span class="keywordtype">int</span> source_x, <span class="keywordtype">int</span> source_y, <span class="keywordtype">int</span> dest_x, <span class="keywordtype">int</span> dest_y, <span class="keywordtype">int</span> width, <span class="keywordtype">int</span> height,</div><div class="line"><a name="l01160"></a><span class="lineno"> 1160</span>  <span class="keywordtype">int</span> flip_dir, <span class="keywordtype">int</span> blit_type)</div><div class="line"><a name="l01161"></a><span class="lineno"> 1161</span> {</div><div class="line"><a name="l01162"></a><span class="lineno"> 1162</span>  <span class="keywordtype">float</span> tx, ty;</div><div class="line"><a name="l01163"></a><span class="lineno"> 1163</span>  BITMAP *temp = NULL;</div><div class="line"><a name="l01164"></a><span class="lineno"> 1164</span>  GLint saved_row_length;</div><div class="line"><a name="l01165"></a><span class="lineno"> 1165</span>  GLint type = __allegro_gl_get_bitmap_type(source, 0);</div><div class="line"><a name="l01166"></a><span class="lineno"> 1166</span>  GLint format = __allegro_gl_get_bitmap_color_format(source, 0);</div><div class="line"><a name="l01167"></a><span class="lineno"> 1167</span>  <span class="keywordtype">int</span> bytes_per_pixel;</div><div class="line"><a name="l01168"></a><span class="lineno"> 1168</span>  <span class="keywordtype">int</span> i, j;</div><div class="line"><a name="l01169"></a><span class="lineno"> 1169</span>  GLfloat current_color[4];</div><div class="line"><a name="l01170"></a><span class="lineno"> 1170</span> </div><div class="line"><a name="l01171"></a><span class="lineno"> 1171</span>  <span class="keywordflow">if</span> (type == -1) {</div><div class="line"><a name="l01172"></a><span class="lineno"> 1172</span>  temp = create_bitmap_ex(24, width, height);</div><div class="line"><a name="l01173"></a><span class="lineno"> 1173</span>  <span class="keywordflow">if</span> (!temp)</div><div class="line"><a name="l01174"></a><span class="lineno"> 1174</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l01175"></a><span class="lineno"> 1175</span>  blit(source, temp, source_x, source_y, 0, 0, width, height);</div><div class="line"><a name="l01176"></a><span class="lineno"> 1176</span>  source = temp;</div><div class="line"><a name="l01177"></a><span class="lineno"> 1177</span>  source_x = 0;</div><div class="line"><a name="l01178"></a><span class="lineno"> 1178</span>  source_y = 0;</div><div class="line"><a name="l01179"></a><span class="lineno"> 1179</span> </div><div class="line"><a name="l01180"></a><span class="lineno"> 1180</span>  type = __allegro_gl_get_bitmap_type(source, 0);</div><div class="line"><a name="l01181"></a><span class="lineno"> 1181</span>  format = __allegro_gl_get_bitmap_color_format(source, 0);</div><div class="line"><a name="l01182"></a><span class="lineno"> 1182</span>  }</div><div class="line"><a name="l01183"></a><span class="lineno"> 1183</span> </div><div class="line"><a name="l01184"></a><span class="lineno"> 1184</span>  glEnable(GL_TEXTURE_2D);</div><div class="line"><a name="l01185"></a><span class="lineno"> 1185</span>  glBindTexture(GL_TEXTURE_2D, __allegro_gl_pool_texture);</div><div class="line"><a name="l01186"></a><span class="lineno"> 1186</span>  </div><div class="line"><a name="l01187"></a><span class="lineno"> 1187</span>  glPushAttrib(GL_TEXTURE_BIT | GL_COLOR_BUFFER_BIT | GL_ENABLE_BIT);</div><div class="line"><a name="l01188"></a><span class="lineno"> 1188</span>  glGetFloatv(GL_CURRENT_COLOR, current_color);</div><div class="line"><a name="l01189"></a><span class="lineno"> 1189</span>  __allegro_gl_init_combine_textures(source);</div><div class="line"><a name="l01190"></a><span class="lineno"> 1190</span>  </div><div class="line"><a name="l01191"></a><span class="lineno"> 1191</span>  glActiveTexture(GL_TEXTURE0);</div><div class="line"><a name="l01192"></a><span class="lineno"> 1192</span>  glBindTexture(GL_TEXTURE_2D, __allegro_gl_pool_texture);</div><div class="line"><a name="l01193"></a><span class="lineno"> 1193</span>  glActiveTexture(GL_TEXTURE1);</div><div class="line"><a name="l01194"></a><span class="lineno"> 1194</span>  glBindTexture(GL_TEXTURE_2D, __allegro_gl_pool_texture);</div><div class="line"><a name="l01195"></a><span class="lineno"> 1195</span>  glActiveTexture(GL_TEXTURE2);</div><div class="line"><a name="l01196"></a><span class="lineno"> 1196</span>  glBindTexture(GL_TEXTURE_2D, __allegro_gl_pool_texture);</div><div class="line"><a name="l01197"></a><span class="lineno"> 1197</span>  glActiveTexture(GL_TEXTURE0);</div><div class="line"><a name="l01198"></a><span class="lineno"> 1198</span>  </div><div class="line"><a name="l01199"></a><span class="lineno"> 1199</span>  bytes_per_pixel = BYTES_PER_PIXEL(bitmap_color_depth(source));</div><div class="line"><a name="l01200"></a><span class="lineno"> 1200</span> </div><div class="line"><a name="l01201"></a><span class="lineno"> 1201</span>  glEnable(GL_ALPHA_TEST);</div><div class="line"><a name="l01202"></a><span class="lineno"> 1202</span>  glAlphaFunc(GL_GREATER, 0.0f);</div><div class="line"><a name="l01203"></a><span class="lineno"> 1203</span> </div><div class="line"><a name="l01204"></a><span class="lineno"> 1204</span>  glGetIntegerv(GL_UNPACK_ROW_LENGTH, &saved_row_length);</div><div class="line"><a name="l01205"></a><span class="lineno"> 1205</span>  glPixelStorei(GL_UNPACK_ALIGNMENT, 1);</div><div class="line"><a name="l01206"></a><span class="lineno"> 1206</span> </div><div class="line"><a name="l01207"></a><span class="lineno"> 1207</span>  glPixelStorei(GL_UNPACK_ROW_LENGTH,</div><div class="line"><a name="l01208"></a><span class="lineno"> 1208</span>  (source->line[1] - source->line[0]) / bytes_per_pixel);</div><div class="line"><a name="l01209"></a><span class="lineno"> 1209</span> </div><div class="line"><a name="l01210"></a><span class="lineno"> 1210</span>  <span class="keywordflow">for</span> (i = 0; i <= width / 256; i++) {</div><div class="line"><a name="l01211"></a><span class="lineno"> 1211</span>  <span class="keywordflow">for</span> (j = 0; j <= height / 256; j++) {</div><div class="line"><a name="l01212"></a><span class="lineno"> 1212</span>  </div><div class="line"><a name="l01213"></a><span class="lineno"> 1213</span>  <span class="keywordtype">void</span> *data = source->line[source_y + j * 256]</div><div class="line"><a name="l01214"></a><span class="lineno"> 1214</span>  + (source_x + i * 256) * bytes_per_pixel;</div><div class="line"><a name="l01215"></a><span class="lineno"> 1215</span>  <span class="keywordtype">int</span> w = width - i * 256;</div><div class="line"><a name="l01216"></a><span class="lineno"> 1216</span>  <span class="keywordtype">int</span> h = height - j * 256;</div><div class="line"><a name="l01217"></a><span class="lineno"> 1217</span>  <span class="keywordtype">int</span> dx = dest_x + i * 256;</div><div class="line"><a name="l01218"></a><span class="lineno"> 1218</span>  <span class="keywordtype">int</span> dy = dest_y + j * 256;</div><div class="line"><a name="l01219"></a><span class="lineno"> 1219</span> </div><div class="line"><a name="l01220"></a><span class="lineno"> 1220</span>  w = (w & -256) ? 256 : w;</div><div class="line"><a name="l01221"></a><span class="lineno"> 1221</span>  h = (h & -256) ? 256 : h;</div><div class="line"><a name="l01222"></a><span class="lineno"> 1222</span> </div><div class="line"><a name="l01223"></a><span class="lineno"> 1223</span>  glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, w, h, format, type, data);</div><div class="line"><a name="l01224"></a><span class="lineno"> 1224</span> </div><div class="line"><a name="l01225"></a><span class="lineno"> 1225</span>  tx = (float)w / 256.;</div><div class="line"><a name="l01226"></a><span class="lineno"> 1226</span>  ty = (float)h / 256.;</div><div class="line"><a name="l01227"></a><span class="lineno"> 1227</span> </div><div class="line"><a name="l01228"></a><span class="lineno"> 1228</span>  <span class="keywordflow">if</span> (flip_dir & AGL_H_FLIP) {</div><div class="line"><a name="l01229"></a><span class="lineno"> 1229</span>  dx = 2*dest_x + width - dx;</div><div class="line"><a name="l01230"></a><span class="lineno"> 1230</span>  w = -w;</div><div class="line"><a name="l01231"></a><span class="lineno"> 1231</span>  }</div><div class="line"><a name="l01232"></a><span class="lineno"> 1232</span> </div><div class="line"><a name="l01233"></a><span class="lineno"> 1233</span>  <span class="keywordflow">if</span> (flip_dir & AGL_V_FLIP) {</div><div class="line"><a name="l01234"></a><span class="lineno"> 1234</span>  dy = 2*dest_y + height - dy;</div><div class="line"><a name="l01235"></a><span class="lineno"> 1235</span>  h = -h;</div><div class="line"><a name="l01236"></a><span class="lineno"> 1236</span>  }</div><div class="line"><a name="l01237"></a><span class="lineno"> 1237</span> </div><div class="line"><a name="l01238"></a><span class="lineno"> 1238</span>  glBegin(GL_QUADS);</div><div class="line"><a name="l01239"></a><span class="lineno"> 1239</span>  glMultiTexCoord2f(GL_TEXTURE0, 0., 0.);</div><div class="line"><a name="l01240"></a><span class="lineno"> 1240</span>  glMultiTexCoord2f(GL_TEXTURE1, 0., 0.);</div><div class="line"><a name="l01241"></a><span class="lineno"> 1241</span>  glMultiTexCoord2f(GL_TEXTURE2, 0., 0.);</div><div class="line"><a name="l01242"></a><span class="lineno"> 1242</span>  glVertex2f(dx, dy);</div><div class="line"><a name="l01243"></a><span class="lineno"> 1243</span>  glMultiTexCoord2f(GL_TEXTURE0, 0., ty);</div><div class="line"><a name="l01244"></a><span class="lineno"> 1244</span>  glMultiTexCoord2f(GL_TEXTURE1, 0., ty);</div><div class="line"><a name="l01245"></a><span class="lineno"> 1245</span>  glMultiTexCoord2f(GL_TEXTURE2, 0., ty);</div><div class="line"><a name="l01246"></a><span class="lineno"> 1246</span>  glVertex2f(dx, dy + h);</div><div class="line"><a name="l01247"></a><span class="lineno"> 1247</span>  glMultiTexCoord2f(GL_TEXTURE0, tx, ty);</div><div class="line"><a name="l01248"></a><span class="lineno"> 1248</span>  glMultiTexCoord2f(GL_TEXTURE1, tx, ty);</div><div class="line"><a name="l01249"></a><span class="lineno"> 1249</span>  glMultiTexCoord2f(GL_TEXTURE2, tx, ty);</div><div class="line"><a name="l01250"></a><span class="lineno"> 1250</span>  glVertex2f(dx + w, dy + h);</div><div class="line"><a name="l01251"></a><span class="lineno"> 1251</span>  glMultiTexCoord2f(GL_TEXTURE0, tx, 0.);</div><div class="line"><a name="l01252"></a><span class="lineno"> 1252</span>  glMultiTexCoord2f(GL_TEXTURE1, tx, 0.);</div><div class="line"><a name="l01253"></a><span class="lineno"> 1253</span>  glMultiTexCoord2f(GL_TEXTURE2, tx, 0.);</div><div class="line"><a name="l01254"></a><span class="lineno"> 1254</span>  glVertex2f(dx + w, dy);</div><div class="line"><a name="l01255"></a><span class="lineno"> 1255</span>  glEnd();</div><div class="line"><a name="l01256"></a><span class="lineno"> 1256</span>  }</div><div class="line"><a name="l01257"></a><span class="lineno"> 1257</span>  }</div><div class="line"><a name="l01258"></a><span class="lineno"> 1258</span> </div><div class="line"><a name="l01259"></a><span class="lineno"> 1259</span>  <span class="comment">/* Restore state */</span></div><div class="line"><a name="l01260"></a><span class="lineno"> 1260</span>  glPixelStorei(GL_UNPACK_ROW_LENGTH, saved_row_length);</div><div class="line"><a name="l01261"></a><span class="lineno"> 1261</span>  glBindTexture(GL_TEXTURE_2D, 0);</div><div class="line"><a name="l01262"></a><span class="lineno"> 1262</span>  glDisable(GL_TEXTURE_2D);</div><div class="line"><a name="l01263"></a><span class="lineno"> 1263</span>  glPopAttrib();</div><div class="line"><a name="l01264"></a><span class="lineno"> 1264</span>  glColor4fv(current_color);</div><div class="line"><a name="l01265"></a><span class="lineno"> 1265</span> </div><div class="line"><a name="l01266"></a><span class="lineno"> 1266</span>  <span class="keywordflow">if</span> (temp) {</div><div class="line"><a name="l01267"></a><span class="lineno"> 1267</span>  destroy_bitmap(temp);</div><div class="line"><a name="l01268"></a><span class="lineno"> 1268</span>  }</div><div class="line"><a name="l01269"></a><span class="lineno"> 1269</span> </div><div class="line"><a name="l01270"></a><span class="lineno"> 1270</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l01271"></a><span class="lineno"> 1271</span> }</div><div class="line"><a name="l01272"></a><span class="lineno"> 1272</span> </div><div class="line"><a name="l01273"></a><span class="lineno"> 1273</span> </div><div class="line"><a name="l01274"></a><span class="lineno"> 1274</span> </div><div class="line"><a name="l01275"></a><span class="lineno"> 1275</span> <span class="keywordtype">void</span> do_masked_blit_screen(<span class="keyword">struct</span> BITMAP *source, <span class="keyword">struct</span> BITMAP *dest,</div><div class="line"><a name="l01276"></a><span class="lineno"> 1276</span>  <span class="keywordtype">int</span> source_x, <span class="keywordtype">int</span> source_y, <span class="keywordtype">int</span> dest_x, <span class="keywordtype">int</span> dest_y, <span class="keywordtype">int</span> width, <span class="keywordtype">int</span> height,</div><div class="line"><a name="l01277"></a><span class="lineno"> 1277</span>  <span class="keywordtype">int</span> flip_dir, <span class="keywordtype">int</span> blit_type)</div><div class="line"><a name="l01278"></a><span class="lineno"> 1278</span> {</div><div class="line"><a name="l01279"></a><span class="lineno"> 1279</span>  </div><div class="line"><a name="l01280"></a><span class="lineno"> 1280</span>  <span class="comment">/* XXX <rohannessian> We should merge this clip code with the</span></div><div class="line"><a name="l01281"></a><span class="lineno"> 1281</span> <span class="comment"> * BITMAP_BLIT_CLIP macro</span></div><div class="line"><a name="l01282"></a><span class="lineno"> 1282</span> <span class="comment"> */</span></div><div class="line"><a name="l01283"></a><span class="lineno"> 1283</span> </div><div class="line"><a name="l01284"></a><span class="lineno"> 1284</span>  <span class="comment">/* Clipping of destination bitmap */</span></div><div class="line"><a name="l01285"></a><span class="lineno"> 1285</span>  <span class="keywordflow">if</span> (dest->clip && (blit_type & AGL_NO_ROTATION)) {</div><div class="line"><a name="l01286"></a><span class="lineno"> 1286</span>  <span class="keywordflow">if</span> ((dest_x >= dest->cr) || (dest_y >= dest->cb)</div><div class="line"><a name="l01287"></a><span class="lineno"> 1287</span>  || (dest_x + width < dest->cl) || (dest_y + height < dest->ct)) {</div><div class="line"><a name="l01288"></a><span class="lineno"> 1288</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l01289"></a><span class="lineno"> 1289</span>  }</div><div class="line"><a name="l01290"></a><span class="lineno"> 1290</span>  <span class="keywordflow">if</span> (flip_dir & AGL_H_FLIP) {</div><div class="line"><a name="l01291"></a><span class="lineno"> 1291</span>  <span class="keywordflow">if</span> (dest_x < dest->cl) {</div><div class="line"><a name="l01292"></a><span class="lineno"> 1292</span>  width += dest_x - dest->cl;</div><div class="line"><a name="l01293"></a><span class="lineno"> 1293</span>  dest_x = dest->cl;</div><div class="line"><a name="l01294"></a><span class="lineno"> 1294</span>  }</div><div class="line"><a name="l01295"></a><span class="lineno"> 1295</span>  <span class="keywordflow">if</span> (dest_x + width > dest->cr) {</div><div class="line"><a name="l01296"></a><span class="lineno"> 1296</span>  source_x += dest_x + width - dest->cr;</div><div class="line"><a name="l01297"></a><span class="lineno"> 1297</span>  width = dest->cr - dest_x;</div><div class="line"><a name="l01298"></a><span class="lineno"> 1298</span>  }</div><div class="line"><a name="l01299"></a><span class="lineno"> 1299</span>  }</div><div class="line"><a name="l01300"></a><span class="lineno"> 1300</span>  <span class="keywordflow">else</span> {</div><div class="line"><a name="l01301"></a><span class="lineno"> 1301</span>  <span class="keywordflow">if</span> (dest_x < dest->cl) {</div><div class="line"><a name="l01302"></a><span class="lineno"> 1302</span>  width += dest_x - dest->cl;</div><div class="line"><a name="l01303"></a><span class="lineno"> 1303</span>  source_x -= dest_x - dest->cl;</div><div class="line"><a name="l01304"></a><span class="lineno"> 1304</span>  dest_x = dest->cl;</div><div class="line"><a name="l01305"></a><span class="lineno"> 1305</span>  }</div><div class="line"><a name="l01306"></a><span class="lineno"> 1306</span>  <span class="keywordflow">if</span> (dest_x + width > dest->cr) {</div><div class="line"><a name="l01307"></a><span class="lineno"> 1307</span>  width = dest->cr - dest_x;</div><div class="line"><a name="l01308"></a><span class="lineno"> 1308</span>  }</div><div class="line"><a name="l01309"></a><span class="lineno"> 1309</span>  }</div><div class="line"><a name="l01310"></a><span class="lineno"> 1310</span>  <span class="keywordflow">if</span> (flip_dir & AGL_V_FLIP) {</div><div class="line"><a name="l01311"></a><span class="lineno"> 1311</span>  <span class="keywordflow">if</span> (dest_y < dest->ct) {</div><div class="line"><a name="l01312"></a><span class="lineno"> 1312</span>  height += dest_y - dest->ct;</div><div class="line"><a name="l01313"></a><span class="lineno"> 1313</span>  dest_y = dest->ct;</div><div class="line"><a name="l01314"></a><span class="lineno"> 1314</span>  }</div><div class="line"><a name="l01315"></a><span class="lineno"> 1315</span>  <span class="keywordflow">if</span> (dest_y + height > dest->cb) {</div><div class="line"><a name="l01316"></a><span class="lineno"> 1316</span>  source_y += dest_y + height - dest->cb;</div><div class="line"><a name="l01317"></a><span class="lineno"> 1317</span>  height = dest->cb - dest_y;</div><div class="line"><a name="l01318"></a><span class="lineno"> 1318</span>  }</div><div class="line"><a name="l01319"></a><span class="lineno"> 1319</span>  }</div><div class="line"><a name="l01320"></a><span class="lineno"> 1320</span>  <span class="keywordflow">else</span> {</div><div class="line"><a name="l01321"></a><span class="lineno"> 1321</span>  <span class="keywordflow">if</span> (dest_y < dest->ct) {</div><div class="line"><a name="l01322"></a><span class="lineno"> 1322</span>  height += dest_y - dest->ct;</div><div class="line"><a name="l01323"></a><span class="lineno"> 1323</span>  source_y -= dest_y - dest->ct;</div><div class="line"><a name="l01324"></a><span class="lineno"> 1324</span>  dest_y = dest->ct;</div><div class="line"><a name="l01325"></a><span class="lineno"> 1325</span>  }</div><div class="line"><a name="l01326"></a><span class="lineno"> 1326</span>  <span class="keywordflow">if</span> (dest_y + height > dest->cb) {</div><div class="line"><a name="l01327"></a><span class="lineno"> 1327</span>  height = dest->cb - dest_y;</div><div class="line"><a name="l01328"></a><span class="lineno"> 1328</span>  }</div><div class="line"><a name="l01329"></a><span class="lineno"> 1329</span>  }</div><div class="line"><a name="l01330"></a><span class="lineno"> 1330</span>  }</div><div class="line"><a name="l01331"></a><span class="lineno"> 1331</span> </div><div class="line"><a name="l01332"></a><span class="lineno"> 1332</span>  <span class="comment">/* Clipping of source bitmap */</span></div><div class="line"><a name="l01333"></a><span class="lineno"> 1333</span>  <span class="keywordflow">if</span> (source->clip && (blit_type & AGL_REGULAR_BMP)) {</div><div class="line"><a name="l01334"></a><span class="lineno"> 1334</span>  <span class="keywordflow">if</span> ((source_x >= source->cr) || (source_y >= source->cb)</div><div class="line"><a name="l01335"></a><span class="lineno"> 1335</span>  || (source_x + width < source->cl)</div><div class="line"><a name="l01336"></a><span class="lineno"> 1336</span>  || (source_y + height < source->ct)) {</div><div class="line"><a name="l01337"></a><span class="lineno"> 1337</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l01338"></a><span class="lineno"> 1338</span>  }</div><div class="line"><a name="l01339"></a><span class="lineno"> 1339</span>  <span class="keywordflow">if</span> (source_x < source->cl) {</div><div class="line"><a name="l01340"></a><span class="lineno"> 1340</span>  width += source_x - source->cl;</div><div class="line"><a name="l01341"></a><span class="lineno"> 1341</span>  dest_x -= source_x - source->cl;</div><div class="line"><a name="l01342"></a><span class="lineno"> 1342</span>  source_x = source->cl;</div><div class="line"><a name="l01343"></a><span class="lineno"> 1343</span>  }</div><div class="line"><a name="l01344"></a><span class="lineno"> 1344</span>  <span class="keywordflow">if</span> (source_y < source->ct) {</div><div class="line"><a name="l01345"></a><span class="lineno"> 1345</span>  height += source_y - source->ct;</div><div class="line"><a name="l01346"></a><span class="lineno"> 1346</span>  dest_y -= source_y - source->ct;</div><div class="line"><a name="l01347"></a><span class="lineno"> 1347</span>  source_y = source->ct;</div><div class="line"><a name="l01348"></a><span class="lineno"> 1348</span>  }</div><div class="line"><a name="l01349"></a><span class="lineno"> 1349</span>  <span class="keywordflow">if</span> (source_x + width > source->cr) {</div><div class="line"><a name="l01350"></a><span class="lineno"> 1350</span>  width = source->cr - source_x;</div><div class="line"><a name="l01351"></a><span class="lineno"> 1351</span>  }</div><div class="line"><a name="l01352"></a><span class="lineno"> 1352</span>  <span class="keywordflow">if</span> (source_y + height > source->cb) {</div><div class="line"><a name="l01353"></a><span class="lineno"> 1353</span>  height = source->cb - source_y;</div><div class="line"><a name="l01354"></a><span class="lineno"> 1354</span>  }</div><div class="line"><a name="l01355"></a><span class="lineno"> 1355</span>  }</div><div class="line"><a name="l01356"></a><span class="lineno"> 1356</span>  <span class="keywordflow">if</span> (is_sub_bitmap(dest)) {</div><div class="line"><a name="l01357"></a><span class="lineno"> 1357</span>  dest_x += dest->x_ofs;</div><div class="line"><a name="l01358"></a><span class="lineno"> 1358</span>  dest_y += dest->y_ofs;</div><div class="line"><a name="l01359"></a><span class="lineno"> 1359</span>  }</div><div class="line"><a name="l01360"></a><span class="lineno"> 1360</span>  <span class="keywordflow">if</span> (width <= 0 || height <= 0)</div><div class="line"><a name="l01361"></a><span class="lineno"> 1361</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l01362"></a><span class="lineno"> 1362</span> </div><div class="line"><a name="l01363"></a><span class="lineno"> 1363</span>  <span class="comment">/* memory -> screen */</span></div><div class="line"><a name="l01364"></a><span class="lineno"> 1364</span>  <span class="keywordflow">if</span> (!is_video_bitmap(source) && !is_screen_bitmap(source)) {</div><div class="line"><a name="l01365"></a><span class="lineno"> 1365</span> </div><div class="line"><a name="l01366"></a><span class="lineno"> 1366</span>  __allegro_gl_driver->screen_masked_blit(source, source_x, source_y,</div><div class="line"><a name="l01367"></a><span class="lineno"> 1367</span>  dest_x, dest_y, width, height, flip_dir, blit_type);</div><div class="line"><a name="l01368"></a><span class="lineno"> 1368</span>  }</div><div class="line"><a name="l01369"></a><span class="lineno"> 1369</span>  <span class="comment">/* video -> screen */</span></div><div class="line"><a name="l01370"></a><span class="lineno"> 1370</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (is_video_bitmap(source)) {</div><div class="line"><a name="l01371"></a><span class="lineno"> 1371</span>  AGL_VIDEO_BITMAP *vid;</div><div class="line"><a name="l01372"></a><span class="lineno"> 1372</span>  BITMAP *source_parent = source;</div><div class="line"><a name="l01373"></a><span class="lineno"> 1373</span> </div><div class="line"><a name="l01374"></a><span class="lineno"> 1374</span>  <span class="keywordtype">int</span> use_combiners = 0;</div><div class="line"><a name="l01375"></a><span class="lineno"> 1375</span> </div><div class="line"><a name="l01376"></a><span class="lineno"> 1376</span>  <span class="comment">/* Special combiner paths */</span></div><div class="line"><a name="l01377"></a><span class="lineno"> 1377</span>  <span class="keywordflow">if</span> (<a class="code" href="group__extensions.html#ga7492f6f6acc608789210560ee63e5436">allegro_gl_extensions_GL</a>.NV_register_combiners</div><div class="line"><a name="l01378"></a><span class="lineno"> 1378</span>  || allegro_gl_info.num_texture_units >= 3) {</div><div class="line"><a name="l01379"></a><span class="lineno"> 1379</span> </div><div class="line"><a name="l01380"></a><span class="lineno"> 1380</span>  use_combiners = 1;</div><div class="line"><a name="l01381"></a><span class="lineno"> 1381</span> </div><div class="line"><a name="l01382"></a><span class="lineno"> 1382</span>  glPushAttrib(GL_ENABLE_BIT | GL_TEXTURE_BIT | GL_COLOR_BUFFER_BIT);</div><div class="line"><a name="l01383"></a><span class="lineno"> 1383</span> </div><div class="line"><a name="l01384"></a><span class="lineno"> 1384</span>  <span class="keywordflow">if</span> (<a class="code" href="group__extensions.html#ga7492f6f6acc608789210560ee63e5436">allegro_gl_extensions_GL</a>.NV_register_combiners) {</div><div class="line"><a name="l01385"></a><span class="lineno"> 1385</span>  __allegro_gl_init_nv_register_combiners(source);</div><div class="line"><a name="l01386"></a><span class="lineno"> 1386</span>  }</div><div class="line"><a name="l01387"></a><span class="lineno"> 1387</span>  <span class="keywordflow">else</span> {</div><div class="line"><a name="l01388"></a><span class="lineno"> 1388</span>  __allegro_gl_init_combine_textures(source);</div><div class="line"><a name="l01389"></a><span class="lineno"> 1389</span>  }</div><div class="line"><a name="l01390"></a><span class="lineno"> 1390</span> </div><div class="line"><a name="l01391"></a><span class="lineno"> 1391</span>  glEnable(GL_ALPHA_TEST);</div><div class="line"><a name="l01392"></a><span class="lineno"> 1392</span>  glAlphaFunc(GL_GREATER, 0.0f);</div><div class="line"><a name="l01393"></a><span class="lineno"> 1393</span>  }</div><div class="line"><a name="l01394"></a><span class="lineno"> 1394</span> </div><div class="line"><a name="l01395"></a><span class="lineno"> 1395</span>  <span class="keywordflow">while</span> (source_parent->id & BMP_ID_SUB) {</div><div class="line"><a name="l01396"></a><span class="lineno"> 1396</span>  source_parent = (BITMAP *)source_parent->extra;</div><div class="line"><a name="l01397"></a><span class="lineno"> 1397</span>  }</div><div class="line"><a name="l01398"></a><span class="lineno"> 1398</span>  vid = source_parent->extra;</div><div class="line"><a name="l01399"></a><span class="lineno"> 1399</span> </div><div class="line"><a name="l01400"></a><span class="lineno"> 1400</span>  <span class="keywordflow">while</span> (vid) {</div><div class="line"><a name="l01401"></a><span class="lineno"> 1401</span>  <span class="keywordtype">int</span> sx, sy; <span class="comment">/* source coordinates */</span></div><div class="line"><a name="l01402"></a><span class="lineno"> 1402</span>  <span class="keywordtype">int</span> dx, dy; <span class="comment">/* destination coordinates */</span></div><div class="line"><a name="l01403"></a><span class="lineno"> 1403</span>  <span class="keywordtype">int</span> w, h;</div><div class="line"><a name="l01404"></a><span class="lineno"> 1404</span> </div><div class="line"><a name="l01405"></a><span class="lineno"> 1405</span>  <span class="keywordflow">if</span> (source_x >= vid->x_ofs + vid->memory_copy->w ||</div><div class="line"><a name="l01406"></a><span class="lineno"> 1406</span>  source_y >= vid->y_ofs + vid->memory_copy->h ||</div><div class="line"><a name="l01407"></a><span class="lineno"> 1407</span>  vid->x_ofs >= source_x + width ||</div><div class="line"><a name="l01408"></a><span class="lineno"> 1408</span>  vid->y_ofs >= source_y + height) {</div><div class="line"><a name="l01409"></a><span class="lineno"> 1409</span>  vid = vid->next;</div><div class="line"><a name="l01410"></a><span class="lineno"> 1410</span>  <span class="keywordflow">continue</span>;</div><div class="line"><a name="l01411"></a><span class="lineno"> 1411</span>  }</div><div class="line"><a name="l01412"></a><span class="lineno"> 1412</span> </div><div class="line"><a name="l01413"></a><span class="lineno"> 1413</span>  sx = MAX (vid->x_ofs, source_x) - vid->x_ofs;</div><div class="line"><a name="l01414"></a><span class="lineno"> 1414</span>  w = MIN (vid->x_ofs + vid->memory_copy->w, source_x + width)</div><div class="line"><a name="l01415"></a><span class="lineno"> 1415</span>  - vid->x_ofs - sx;</div><div class="line"><a name="l01416"></a><span class="lineno"> 1416</span>  sy = MAX (vid->y_ofs, source_y) - vid->y_ofs;</div><div class="line"><a name="l01417"></a><span class="lineno"> 1417</span>  h = MIN (vid->y_ofs + vid->memory_copy->h, source_y + height)</div><div class="line"><a name="l01418"></a><span class="lineno"> 1418</span>  - vid->y_ofs - sy;</div><div class="line"><a name="l01419"></a><span class="lineno"> 1419</span> </div><div class="line"><a name="l01420"></a><span class="lineno"> 1420</span>  dx = dest_x + vid->x_ofs + sx - source_x;</div><div class="line"><a name="l01421"></a><span class="lineno"> 1421</span>  dy = dest_y + vid->y_ofs + sy - source_y;</div><div class="line"><a name="l01422"></a><span class="lineno"> 1422</span> </div><div class="line"><a name="l01423"></a><span class="lineno"> 1423</span>  <span class="keywordflow">if</span> (flip_dir & AGL_H_FLIP) {</div><div class="line"><a name="l01424"></a><span class="lineno"> 1424</span>  dx = 2*dest_x + width - dx;</div><div class="line"><a name="l01425"></a><span class="lineno"> 1425</span>  w = -w;</div><div class="line"><a name="l01426"></a><span class="lineno"> 1426</span>  }</div><div class="line"><a name="l01427"></a><span class="lineno"> 1427</span> </div><div class="line"><a name="l01428"></a><span class="lineno"> 1428</span>  <span class="keywordflow">if</span> (flip_dir & AGL_V_FLIP) {</div><div class="line"><a name="l01429"></a><span class="lineno"> 1429</span>  dy = 2*dest_y + height - dy;</div><div class="line"><a name="l01430"></a><span class="lineno"> 1430</span>  h = -h;</div><div class="line"><a name="l01431"></a><span class="lineno"> 1431</span>  }</div><div class="line"><a name="l01432"></a><span class="lineno"> 1432</span> </div><div class="line"><a name="l01433"></a><span class="lineno"> 1433</span>  <span class="keywordflow">if</span> (use_combiners) {</div><div class="line"><a name="l01434"></a><span class="lineno"> 1434</span>  <span class="keywordflow">if</span> (<a class="code" href="group__extensions.html#ga7492f6f6acc608789210560ee63e5436">allegro_gl_extensions_GL</a>.NV_register_combiners) {</div><div class="line"><a name="l01435"></a><span class="lineno"> 1435</span>  glEnable(vid->target);</div><div class="line"><a name="l01436"></a><span class="lineno"> 1436</span>  glBindTexture(vid->target, vid->tex);</div><div class="line"><a name="l01437"></a><span class="lineno"> 1437</span>  glTexParameteri(vid->target, GL_TEXTURE_MIN_FILTER, GL_NEAREST);</div><div class="line"><a name="l01438"></a><span class="lineno"> 1438</span>  glTexParameteri(vid->target, GL_TEXTURE_MAG_FILTER, GL_NEAREST);</div><div class="line"><a name="l01439"></a><span class="lineno"> 1439</span> </div><div class="line"><a name="l01440"></a><span class="lineno"> 1440</span>  <span class="keywordflow">if</span> (vid->target == GL_TEXTURE_2D) {</div><div class="line"><a name="l01441"></a><span class="lineno"> 1441</span>  <span class="keywordtype">float</span> tx = sx / (float)vid->memory_copy->w;</div><div class="line"><a name="l01442"></a><span class="lineno"> 1442</span>  <span class="keywordtype">float</span> ty = sy / (<span class="keywordtype">float</span>)vid->memory_copy->h;</div><div class="line"><a name="l01443"></a><span class="lineno"> 1443</span>  <span class="keywordtype">float</span> tw = abs(w) / (float)vid->memory_copy->w;</div><div class="line"><a name="l01444"></a><span class="lineno"> 1444</span>  <span class="keywordtype">float</span> th = abs(h) / (float)vid->memory_copy->h;</div><div class="line"><a name="l01445"></a><span class="lineno"> 1445</span> </div><div class="line"><a name="l01446"></a><span class="lineno"> 1446</span>  glBegin(GL_QUADS);</div><div class="line"><a name="l01447"></a><span class="lineno"> 1447</span>  glTexCoord2f(tx, ty);</div><div class="line"><a name="l01448"></a><span class="lineno"> 1448</span>  glVertex2f(dx, dy);</div><div class="line"><a name="l01449"></a><span class="lineno"> 1449</span>  glTexCoord2f(tx, ty + th);</div><div class="line"><a name="l01450"></a><span class="lineno"> 1450</span>  glVertex2f(dx, dy + h);</div><div class="line"><a name="l01451"></a><span class="lineno"> 1451</span>  glTexCoord2f(tx + tw, ty + th);</div><div class="line"><a name="l01452"></a><span class="lineno"> 1452</span>  glVertex2f(dx + w, dy + h);</div><div class="line"><a name="l01453"></a><span class="lineno"> 1453</span>  glTexCoord2f(tx + tw, ty);</div><div class="line"><a name="l01454"></a><span class="lineno"> 1454</span>  glVertex2f(dx + w, dy);</div><div class="line"><a name="l01455"></a><span class="lineno"> 1455</span>  glEnd();</div><div class="line"><a name="l01456"></a><span class="lineno"> 1456</span>  }</div><div class="line"><a name="l01457"></a><span class="lineno"> 1457</span>  <span class="keywordflow">else</span> {</div><div class="line"><a name="l01458"></a><span class="lineno"> 1458</span>  glBegin(GL_QUADS);</div><div class="line"><a name="l01459"></a><span class="lineno"> 1459</span>  glTexCoord2i(sx, sy);</div><div class="line"><a name="l01460"></a><span class="lineno"> 1460</span>  glVertex2f(dx, dy);</div><div class="line"><a name="l01461"></a><span class="lineno"> 1461</span>  glTexCoord2i(sx, sy + h);</div><div class="line"><a name="l01462"></a><span class="lineno"> 1462</span>  glVertex2f(dx, dy + h);</div><div class="line"><a name="l01463"></a><span class="lineno"> 1463</span>  glTexCoord2i(sx + w, sy + h);</div><div class="line"><a name="l01464"></a><span class="lineno"> 1464</span>  glVertex2f(dx + w, dy + h);</div><div class="line"><a name="l01465"></a><span class="lineno"> 1465</span>  glTexCoord2i(sx + w, sy);</div><div class="line"><a name="l01466"></a><span class="lineno"> 1466</span>  glVertex2f(dx + w, dy);</div><div class="line"><a name="l01467"></a><span class="lineno"> 1467</span>  glEnd();</div><div class="line"><a name="l01468"></a><span class="lineno"> 1468</span>  }</div><div class="line"><a name="l01469"></a><span class="lineno"> 1469</span> </div><div class="line"><a name="l01470"></a><span class="lineno"> 1470</span>  glBindTexture(vid->target, 0);</div><div class="line"><a name="l01471"></a><span class="lineno"> 1471</span>  glDisable(vid->target);</div><div class="line"><a name="l01472"></a><span class="lineno"> 1472</span>  }</div><div class="line"><a name="l01473"></a><span class="lineno"> 1473</span>  <span class="keywordflow">else</span> {</div><div class="line"><a name="l01474"></a><span class="lineno"> 1474</span>  glEnable(vid->target);</div><div class="line"><a name="l01475"></a><span class="lineno"> 1475</span>  glActiveTexture(GL_TEXTURE0);</div><div class="line"><a name="l01476"></a><span class="lineno"> 1476</span>  glBindTexture(vid->target, vid->tex);</div><div class="line"><a name="l01477"></a><span class="lineno"> 1477</span>  glActiveTexture(GL_TEXTURE1);</div><div class="line"><a name="l01478"></a><span class="lineno"> 1478</span>  glBindTexture(vid->target, vid->tex);</div><div class="line"><a name="l01479"></a><span class="lineno"> 1479</span>  glActiveTexture(GL_TEXTURE2);</div><div class="line"><a name="l01480"></a><span class="lineno"> 1480</span>  glBindTexture(vid->target, vid->tex);</div><div class="line"><a name="l01481"></a><span class="lineno"> 1481</span>  glActiveTexture(GL_TEXTURE0);</div><div class="line"><a name="l01482"></a><span class="lineno"> 1482</span>  glTexParameteri(vid->target, GL_TEXTURE_MIN_FILTER, GL_NEAREST);</div><div class="line"><a name="l01483"></a><span class="lineno"> 1483</span>  glTexParameteri(vid->target, GL_TEXTURE_MAG_FILTER, GL_NEAREST);</div><div class="line"><a name="l01484"></a><span class="lineno"> 1484</span> </div><div class="line"><a name="l01485"></a><span class="lineno"> 1485</span>  <span class="keywordflow">if</span> (vid->target == GL_TEXTURE_2D) {</div><div class="line"><a name="l01486"></a><span class="lineno"> 1486</span>  <span class="keywordtype">float</span> tx, ty, tw, th; <span class="comment">/* texture coordinates */</span></div><div class="line"><a name="l01487"></a><span class="lineno"> 1487</span>  tx = sx / (float)vid->memory_copy->w;</div><div class="line"><a name="l01488"></a><span class="lineno"> 1488</span>  ty = sy / (<span class="keywordtype">float</span>)vid->memory_copy->h;</div><div class="line"><a name="l01489"></a><span class="lineno"> 1489</span>  tw = abs(w) / (float)vid->memory_copy->w;</div><div class="line"><a name="l01490"></a><span class="lineno"> 1490</span>  th = abs(h) / (float)vid->memory_copy->h;</div><div class="line"><a name="l01491"></a><span class="lineno"> 1491</span> </div><div class="line"><a name="l01492"></a><span class="lineno"> 1492</span>  glBegin(GL_QUADS);</div><div class="line"><a name="l01493"></a><span class="lineno"> 1493</span>  glMultiTexCoord2f(GL_TEXTURE0, tx, ty);</div><div class="line"><a name="l01494"></a><span class="lineno"> 1494</span>  glMultiTexCoord2f(GL_TEXTURE1, tx, ty);</div><div class="line"><a name="l01495"></a><span class="lineno"> 1495</span>  glMultiTexCoord2f(GL_TEXTURE2, tx, ty);</div><div class="line"><a name="l01496"></a><span class="lineno"> 1496</span>  glVertex2f(dx, dy);</div><div class="line"><a name="l01497"></a><span class="lineno"> 1497</span>  glMultiTexCoord2f(GL_TEXTURE0, tx, ty + th);</div><div class="line"><a name="l01498"></a><span class="lineno"> 1498</span>  glMultiTexCoord2f(GL_TEXTURE1, tx, ty + th);</div><div class="line"><a name="l01499"></a><span class="lineno"> 1499</span>  glMultiTexCoord2f(GL_TEXTURE2, tx, ty + th);</div><div class="line"><a name="l01500"></a><span class="lineno"> 1500</span>  glVertex2f(dx, dy + h);</div><div class="line"><a name="l01501"></a><span class="lineno"> 1501</span>  glMultiTexCoord2f(GL_TEXTURE0, tx + tw, ty + th);</div><div class="line"><a name="l01502"></a><span class="lineno"> 1502</span>  glMultiTexCoord2f(GL_TEXTURE1, tx + tw, ty + th);</div><div class="line"><a name="l01503"></a><span class="lineno"> 1503</span>  glMultiTexCoord2f(GL_TEXTURE2, tx + tw, ty + th);</div><div class="line"><a name="l01504"></a><span class="lineno"> 1504</span>  glVertex2f(dx + w, dy + h);</div><div class="line"><a name="l01505"></a><span class="lineno"> 1505</span>  glMultiTexCoord2f(GL_TEXTURE0, tx + tw, ty);</div><div class="line"><a name="l01506"></a><span class="lineno"> 1506</span>  glMultiTexCoord2f(GL_TEXTURE1, tx + tw, ty);</div><div class="line"><a name="l01507"></a><span class="lineno"> 1507</span>  glMultiTexCoord2f(GL_TEXTURE2, tx + tw, ty);</div><div class="line"><a name="l01508"></a><span class="lineno"> 1508</span>  glVertex2f(dx + w, dy);</div><div class="line"><a name="l01509"></a><span class="lineno"> 1509</span>  glEnd();</div><div class="line"><a name="l01510"></a><span class="lineno"> 1510</span>  }</div><div class="line"><a name="l01511"></a><span class="lineno"> 1511</span>  <span class="keywordflow">else</span> {</div><div class="line"><a name="l01512"></a><span class="lineno"> 1512</span>  glBegin(GL_QUADS);</div><div class="line"><a name="l01513"></a><span class="lineno"> 1513</span>  glMultiTexCoord2i(GL_TEXTURE0, dx, dy);</div><div class="line"><a name="l01514"></a><span class="lineno"> 1514</span>  glMultiTexCoord2i(GL_TEXTURE1, dx, dy);</div><div class="line"><a name="l01515"></a><span class="lineno"> 1515</span>  glMultiTexCoord2i(GL_TEXTURE2, dx, dy);</div><div class="line"><a name="l01516"></a><span class="lineno"> 1516</span>  glVertex2f(dx, dy);</div><div class="line"><a name="l01517"></a><span class="lineno"> 1517</span>  glMultiTexCoord2i(GL_TEXTURE0, dx, dy + h);</div><div class="line"><a name="l01518"></a><span class="lineno"> 1518</span>  glMultiTexCoord2i(GL_TEXTURE1, dx, dy + h);</div><div class="line"><a name="l01519"></a><span class="lineno"> 1519</span>  glMultiTexCoord2i(GL_TEXTURE2, dx, dy + h);</div><div class="line"><a name="l01520"></a><span class="lineno"> 1520</span>  glVertex2f(dx, dy + h);</div><div class="line"><a name="l01521"></a><span class="lineno"> 1521</span>  glMultiTexCoord2i(GL_TEXTURE0, dx + w, dy + h);</div><div class="line"><a name="l01522"></a><span class="lineno"> 1522</span>  glMultiTexCoord2i(GL_TEXTURE1, dx + w, dy + h);</div><div class="line"><a name="l01523"></a><span class="lineno"> 1523</span>  glMultiTexCoord2i(GL_TEXTURE2, dx + w, dy + h);</div><div class="line"><a name="l01524"></a><span class="lineno"> 1524</span>  glVertex2f(dx + w, dy + h);</div><div class="line"><a name="l01525"></a><span class="lineno"> 1525</span>  glMultiTexCoord2i(GL_TEXTURE0, dx + w, dy);</div><div class="line"><a name="l01526"></a><span class="lineno"> 1526</span>  glMultiTexCoord2i(GL_TEXTURE1, dx + w, dy);</div><div class="line"><a name="l01527"></a><span class="lineno"> 1527</span>  glMultiTexCoord2i(GL_TEXTURE2, dx + w, dy);</div><div class="line"><a name="l01528"></a><span class="lineno"> 1528</span>  glVertex2f(dx + w, dy);</div><div class="line"><a name="l01529"></a><span class="lineno"> 1529</span>  glEnd();</div><div class="line"><a name="l01530"></a><span class="lineno"> 1530</span>  }</div><div class="line"><a name="l01531"></a><span class="lineno"> 1531</span> </div><div class="line"><a name="l01532"></a><span class="lineno"> 1532</span>  glBindTexture(vid->target, 0);</div><div class="line"><a name="l01533"></a><span class="lineno"> 1533</span>  glDisable(vid->target);</div><div class="line"><a name="l01534"></a><span class="lineno"> 1534</span>  }</div><div class="line"><a name="l01535"></a><span class="lineno"> 1535</span>  }</div><div class="line"><a name="l01536"></a><span class="lineno"> 1536</span>  <span class="keywordflow">else</span> {</div><div class="line"><a name="l01537"></a><span class="lineno"> 1537</span>  screen_masked_blit_standard(vid->memory_copy, sx, sy, dx, dy,</div><div class="line"><a name="l01538"></a><span class="lineno"> 1538</span>  w, h, FALSE, blit_type);</div><div class="line"><a name="l01539"></a><span class="lineno"> 1539</span>  }</div><div class="line"><a name="l01540"></a><span class="lineno"> 1540</span> </div><div class="line"><a name="l01541"></a><span class="lineno"> 1541</span>  vid = vid->next;</div><div class="line"><a name="l01542"></a><span class="lineno"> 1542</span>  }</div><div class="line"><a name="l01543"></a><span class="lineno"> 1543</span> </div><div class="line"><a name="l01544"></a><span class="lineno"> 1544</span>  <span class="keywordflow">if</span> (use_combiners) {</div><div class="line"><a name="l01545"></a><span class="lineno"> 1545</span>  glPopAttrib();</div><div class="line"><a name="l01546"></a><span class="lineno"> 1546</span>  }</div><div class="line"><a name="l01547"></a><span class="lineno"> 1547</span>  }</div><div class="line"><a name="l01548"></a><span class="lineno"> 1548</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l01549"></a><span class="lineno"> 1549</span> }</div><div class="line"><a name="l01550"></a><span class="lineno"> 1550</span> </div><div class="line"><a name="l01551"></a><span class="lineno"> 1551</span> </div><div class="line"><a name="l01552"></a><span class="lineno"> 1552</span> </div><div class="line"><a name="l01553"></a><span class="lineno"> 1553</span> <span class="keyword">static</span> BITMAP* __allegro_gl_convert_rle_sprite(AL_CONST <span class="keyword">struct</span> RLE_SPRITE *sprite, <span class="keywordtype">int</span> trans)</div><div class="line"><a name="l01554"></a><span class="lineno"> 1554</span> {</div><div class="line"><a name="l01555"></a><span class="lineno"> 1555</span>  BITMAP *temp = NULL;</div><div class="line"><a name="l01556"></a><span class="lineno"> 1556</span>  <span class="keywordtype">int</span> y, x, src_depth;</div><div class="line"><a name="l01557"></a><span class="lineno"> 1557</span>  <span class="keywordtype">signed</span> <span class="keywordtype">long</span> src_mask;</div><div class="line"><a name="l01558"></a><span class="lineno"> 1558</span> </div><div class="line"><a name="l01559"></a><span class="lineno"> 1559</span> <span class="preprocessor"> #define DRAW_RLE_8888(bits) \</span></div><div class="line"><a name="l01560"></a><span class="lineno"> 1560</span> <span class="preprocessor"> { \</span></div><div class="line"><a name="l01561"></a><span class="lineno"> 1561</span> <span class="preprocessor"> for (y = 0; y < sprite->h; y++) { \</span></div><div class="line"><a name="l01562"></a><span class="lineno"> 1562</span> <span class="preprocessor"> signed long c = *s++; \</span></div><div class="line"><a name="l01563"></a><span class="lineno"> 1563</span> <span class="preprocessor"> for (x = 0; x < sprite->w;) { \</span></div><div class="line"><a name="l01564"></a><span class="lineno"> 1564</span> <span class="preprocessor"> if (c == src_mask) \</span></div><div class="line"><a name="l01565"></a><span class="lineno"> 1565</span> <span class="preprocessor"> break; \</span></div><div class="line"><a name="l01566"></a><span class="lineno"> 1566</span> <span class="preprocessor"> if (c > 0) { \</span></div><div class="line"><a name="l01567"></a><span class="lineno"> 1567</span> <span class="preprocessor"> </span><span class="comment">/* Run of solid pixels */</span><span class="preprocessor"> \</span></div><div class="line"><a name="l01568"></a><span class="lineno"> 1568</span> <span class="preprocessor"> for (c--; c>=0; c--) { \</span></div><div class="line"><a name="l01569"></a><span class="lineno"> 1569</span> <span class="preprocessor"> unsigned long col = *s++; \</span></div><div class="line"><a name="l01570"></a><span class="lineno"> 1570</span> <span class="preprocessor"> if (bits == 32 && trans) \</span></div><div class="line"><a name="l01571"></a><span class="lineno"> 1571</span> <span class="preprocessor"> _putpixel32(temp, x++, y, makeacol32(getr32(col), getg32(col), getb32(col), geta32(col))); \</span></div><div class="line"><a name="l01572"></a><span class="lineno"> 1572</span> <span class="preprocessor"> else \</span></div><div class="line"><a name="l01573"></a><span class="lineno"> 1573</span> <span class="preprocessor"> _putpixel32(temp, x++, y, makeacol32(getr##bits(col), getg##bits(col), getb##bits(col), 255)); \</span></div><div class="line"><a name="l01574"></a><span class="lineno"> 1574</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l01575"></a><span class="lineno"> 1575</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l01576"></a><span class="lineno"> 1576</span> <span class="preprocessor"> else { \</span></div><div class="line"><a name="l01577"></a><span class="lineno"> 1577</span> <span class="preprocessor"> </span><span class="comment">/* Run of transparent pixels */</span><span class="preprocessor"> \</span></div><div class="line"><a name="l01578"></a><span class="lineno"> 1578</span> <span class="preprocessor"> hline(temp, x, y, x-c+1, 0); \</span></div><div class="line"><a name="l01579"></a><span class="lineno"> 1579</span> <span class="preprocessor"> x -= c; \</span></div><div class="line"><a name="l01580"></a><span class="lineno"> 1580</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l01581"></a><span class="lineno"> 1581</span> <span class="preprocessor"> c = *s++; \</span></div><div class="line"><a name="l01582"></a><span class="lineno"> 1582</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l01583"></a><span class="lineno"> 1583</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l01584"></a><span class="lineno"> 1584</span> <span class="preprocessor"> }</span></div><div class="line"><a name="l01585"></a><span class="lineno"> 1585</span> </div><div class="line"><a name="l01586"></a><span class="lineno"> 1586</span>  src_depth = sprite->color_depth;</div><div class="line"><a name="l01587"></a><span class="lineno"> 1587</span>  <span class="keywordflow">if</span> (src_depth == 8)</div><div class="line"><a name="l01588"></a><span class="lineno"> 1588</span>  src_mask = 0;</div><div class="line"><a name="l01589"></a><span class="lineno"> 1589</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l01590"></a><span class="lineno"> 1590</span>  src_mask = makecol_depth(src_depth, 255, 0, 255);</div><div class="line"><a name="l01591"></a><span class="lineno"> 1591</span> </div><div class="line"><a name="l01592"></a><span class="lineno"> 1592</span>  temp = create_bitmap_ex(32, sprite->w, sprite->h);</div><div class="line"><a name="l01593"></a><span class="lineno"> 1593</span>  <span class="keywordflow">if</span> (!temp) <span class="keywordflow">return</span> NULL;</div><div class="line"><a name="l01594"></a><span class="lineno"> 1594</span> </div><div class="line"><a name="l01595"></a><span class="lineno"> 1595</span>  <span class="comment">/* RGBA 8888 */</span></div><div class="line"><a name="l01596"></a><span class="lineno"> 1596</span>  <span class="keywordflow">switch</span>(src_depth) {</div><div class="line"><a name="l01597"></a><span class="lineno"> 1597</span>  <span class="keywordflow">case</span> 8:</div><div class="line"><a name="l01598"></a><span class="lineno"> 1598</span>  {</div><div class="line"><a name="l01599"></a><span class="lineno"> 1599</span>  <span class="keywordtype">signed</span> <span class="keywordtype">char</span> *s = (<span class="keywordtype">signed</span> <span class="keywordtype">char</span>*)sprite->dat;</div><div class="line"><a name="l01600"></a><span class="lineno"> 1600</span>  DRAW_RLE_8888(8);</div><div class="line"><a name="l01601"></a><span class="lineno"> 1601</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l01602"></a><span class="lineno"> 1602</span>  }</div><div class="line"><a name="l01603"></a><span class="lineno"> 1603</span>  <span class="keywordflow">case</span> 15:</div><div class="line"><a name="l01604"></a><span class="lineno"> 1604</span>  {</div><div class="line"><a name="l01605"></a><span class="lineno"> 1605</span>  int16_t *s = (int16_t*)sprite->dat;</div><div class="line"><a name="l01606"></a><span class="lineno"> 1606</span>  DRAW_RLE_8888(15);</div><div class="line"><a name="l01607"></a><span class="lineno"> 1607</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l01608"></a><span class="lineno"> 1608</span>  }</div><div class="line"><a name="l01609"></a><span class="lineno"> 1609</span>  <span class="keywordflow">case</span> 16:</div><div class="line"><a name="l01610"></a><span class="lineno"> 1610</span>  {</div><div class="line"><a name="l01611"></a><span class="lineno"> 1611</span>  int16_t *s = (int16_t*)sprite->dat;</div><div class="line"><a name="l01612"></a><span class="lineno"> 1612</span>  DRAW_RLE_8888(16);</div><div class="line"><a name="l01613"></a><span class="lineno"> 1613</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l01614"></a><span class="lineno"> 1614</span>  }</div><div class="line"><a name="l01615"></a><span class="lineno"> 1615</span>  <span class="keywordflow">case</span> 24:</div><div class="line"><a name="l01616"></a><span class="lineno"> 1616</span>  {</div><div class="line"><a name="l01617"></a><span class="lineno"> 1617</span>  int32_t *s = (int32_t*)sprite->dat;</div><div class="line"><a name="l01618"></a><span class="lineno"> 1618</span>  DRAW_RLE_8888(24);</div><div class="line"><a name="l01619"></a><span class="lineno"> 1619</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l01620"></a><span class="lineno"> 1620</span>  }</div><div class="line"><a name="l01621"></a><span class="lineno"> 1621</span>  <span class="keywordflow">case</span> 32:</div><div class="line"><a name="l01622"></a><span class="lineno"> 1622</span>  {</div><div class="line"><a name="l01623"></a><span class="lineno"> 1623</span>  int32_t *s = (int32_t*)sprite->dat;</div><div class="line"><a name="l01624"></a><span class="lineno"> 1624</span>  DRAW_RLE_8888(32);</div><div class="line"><a name="l01625"></a><span class="lineno"> 1625</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l01626"></a><span class="lineno"> 1626</span>  }</div><div class="line"><a name="l01627"></a><span class="lineno"> 1627</span>  }</div><div class="line"><a name="l01628"></a><span class="lineno"> 1628</span> </div><div class="line"><a name="l01629"></a><span class="lineno"> 1629</span>  <span class="keywordflow">return</span> temp;</div><div class="line"><a name="l01630"></a><span class="lineno"> 1630</span> }</div><div class="line"><a name="l01631"></a><span class="lineno"> 1631</span> </div><div class="line"><a name="l01632"></a><span class="lineno"> 1632</span> </div><div class="line"><a name="l01633"></a><span class="lineno"> 1633</span> </div><div class="line"><a name="l01634"></a><span class="lineno"> 1634</span> <span class="keywordtype">void</span> allegro_gl_screen_draw_rle_sprite(<span class="keyword">struct</span> BITMAP *bmp, AL_CONST <span class="keyword">struct</span> RLE_SPRITE *sprite, <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y)</div><div class="line"><a name="l01635"></a><span class="lineno"> 1635</span> {</div><div class="line"><a name="l01636"></a><span class="lineno"> 1636</span>  BITMAP *temp = NULL, *temp2 = NULL;</div><div class="line"><a name="l01637"></a><span class="lineno"> 1637</span>  <span class="keywordtype">int</span> source_x = 0, source_y = 0;</div><div class="line"><a name="l01638"></a><span class="lineno"> 1638</span>  <span class="keywordtype">int</span> width = sprite->w, height = sprite->h;</div><div class="line"><a name="l01639"></a><span class="lineno"> 1639</span> </div><div class="line"><a name="l01640"></a><span class="lineno"> 1640</span>  temp = __allegro_gl_convert_rle_sprite(sprite, FALSE);</div><div class="line"><a name="l01641"></a><span class="lineno"> 1641</span>  <span class="keywordflow">if</span> (!temp)</div><div class="line"><a name="l01642"></a><span class="lineno"> 1642</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l01643"></a><span class="lineno"> 1643</span> </div><div class="line"><a name="l01644"></a><span class="lineno"> 1644</span>  BITMAP_BLIT_CLIP(temp, bmp, source_x, source_y, x, y, width, height);</div><div class="line"><a name="l01645"></a><span class="lineno"> 1645</span>  </div><div class="line"><a name="l01646"></a><span class="lineno"> 1646</span>  <span class="keywordflow">if</span> (is_sub_bitmap(bmp)) {</div><div class="line"><a name="l01647"></a><span class="lineno"> 1647</span>  x += bmp->x_ofs;</div><div class="line"><a name="l01648"></a><span class="lineno"> 1648</span>  y += bmp->y_ofs;</div><div class="line"><a name="l01649"></a><span class="lineno"> 1649</span>  }</div><div class="line"><a name="l01650"></a><span class="lineno"> 1650</span> </div><div class="line"><a name="l01651"></a><span class="lineno"> 1651</span>  <span class="keywordflow">if</span> (width <= 0 || height <= 0) {</div><div class="line"><a name="l01652"></a><span class="lineno"> 1652</span>  destroy_bitmap(temp);</div><div class="line"><a name="l01653"></a><span class="lineno"> 1653</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l01654"></a><span class="lineno"> 1654</span>  }</div><div class="line"><a name="l01655"></a><span class="lineno"> 1655</span> </div><div class="line"><a name="l01656"></a><span class="lineno"> 1656</span>  temp2 = create_sub_bitmap(temp, source_x, source_y, width, height);</div><div class="line"><a name="l01657"></a><span class="lineno"> 1657</span>  <span class="keywordflow">if</span> (!temp2) {</div><div class="line"><a name="l01658"></a><span class="lineno"> 1658</span>  destroy_bitmap(temp);</div><div class="line"><a name="l01659"></a><span class="lineno"> 1659</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l01660"></a><span class="lineno"> 1660</span>  }</div><div class="line"><a name="l01661"></a><span class="lineno"> 1661</span> </div><div class="line"><a name="l01662"></a><span class="lineno"> 1662</span>  do_screen_masked_blit_standard(GL_RGBA, </div><div class="line"><a name="l01663"></a><span class="lineno"> 1663</span>  __allegro_gl_get_bitmap_type(temp2, <a class="code" href="group__texture.html#gaba184d573c65f33b35d1d57936607d08">AGL_TEXTURE_MASKED</a>), temp2,</div><div class="line"><a name="l01664"></a><span class="lineno"> 1664</span>  0, 0, x, y, width, height, FALSE, AGL_NO_ROTATION);</div><div class="line"><a name="l01665"></a><span class="lineno"> 1665</span> </div><div class="line"><a name="l01666"></a><span class="lineno"> 1666</span>  destroy_bitmap(temp2);</div><div class="line"><a name="l01667"></a><span class="lineno"> 1667</span>  destroy_bitmap(temp);</div><div class="line"><a name="l01668"></a><span class="lineno"> 1668</span> }</div><div class="line"><a name="l01669"></a><span class="lineno"> 1669</span> </div><div class="line"><a name="l01670"></a><span class="lineno"> 1670</span> </div><div class="line"><a name="l01671"></a><span class="lineno"> 1671</span> <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_screen_draw_trans_rgba_rle_sprite(<span class="keyword">struct</span> BITMAP *bmp,</div><div class="line"><a name="l01672"></a><span class="lineno"> 1672</span>  AL_CONST <span class="keyword">struct</span> RLE_SPRITE *sprite, <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y) {</div><div class="line"><a name="l01673"></a><span class="lineno"> 1673</span>  BITMAP *temp = NULL, *temp2 = NULL;</div><div class="line"><a name="l01674"></a><span class="lineno"> 1674</span>  <span class="keywordtype">int</span> source_x = 0, source_y = 0;</div><div class="line"><a name="l01675"></a><span class="lineno"> 1675</span>  <span class="keywordtype">int</span> width = sprite->w, height = sprite->h;</div><div class="line"><a name="l01676"></a><span class="lineno"> 1676</span> </div><div class="line"><a name="l01677"></a><span class="lineno"> 1677</span>  temp = __allegro_gl_convert_rle_sprite(sprite, TRUE);</div><div class="line"><a name="l01678"></a><span class="lineno"> 1678</span>  <span class="keywordflow">if</span> (!temp)</div><div class="line"><a name="l01679"></a><span class="lineno"> 1679</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l01680"></a><span class="lineno"> 1680</span> </div><div class="line"><a name="l01681"></a><span class="lineno"> 1681</span>  BITMAP_BLIT_CLIP(temp, bmp, source_x, source_y, x, y, width, height);</div><div class="line"><a name="l01682"></a><span class="lineno"> 1682</span>  </div><div class="line"><a name="l01683"></a><span class="lineno"> 1683</span>  <span class="keywordflow">if</span> (is_sub_bitmap(bmp)) {</div><div class="line"><a name="l01684"></a><span class="lineno"> 1684</span>  x += bmp->x_ofs;</div><div class="line"><a name="l01685"></a><span class="lineno"> 1685</span>  y += bmp->y_ofs;</div><div class="line"><a name="l01686"></a><span class="lineno"> 1686</span>  }</div><div class="line"><a name="l01687"></a><span class="lineno"> 1687</span> </div><div class="line"><a name="l01688"></a><span class="lineno"> 1688</span>  <span class="keywordflow">if</span> (width <= 0 || height <= 0) {</div><div class="line"><a name="l01689"></a><span class="lineno"> 1689</span>  destroy_bitmap(temp);</div><div class="line"><a name="l01690"></a><span class="lineno"> 1690</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l01691"></a><span class="lineno"> 1691</span>  }</div><div class="line"><a name="l01692"></a><span class="lineno"> 1692</span> </div><div class="line"><a name="l01693"></a><span class="lineno"> 1693</span>  temp2 = create_sub_bitmap(temp, source_x, source_y, width, height);</div><div class="line"><a name="l01694"></a><span class="lineno"> 1694</span>  <span class="keywordflow">if</span> (!temp2) {</div><div class="line"><a name="l01695"></a><span class="lineno"> 1695</span>  destroy_bitmap(temp);</div><div class="line"><a name="l01696"></a><span class="lineno"> 1696</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l01697"></a><span class="lineno"> 1697</span>  }</div><div class="line"><a name="l01698"></a><span class="lineno"> 1698</span>  </div><div class="line"><a name="l01699"></a><span class="lineno"> 1699</span>  <span class="keywordflow">if</span> (__allegro_gl_blit_operation == AGL_OP_LOGIC_OP)</div><div class="line"><a name="l01700"></a><span class="lineno"> 1700</span>  glEnable(GL_COLOR_LOGIC_OP);</div><div class="line"><a name="l01701"></a><span class="lineno"> 1701</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l01702"></a><span class="lineno"> 1702</span>  glEnable(GL_BLEND);</div><div class="line"><a name="l01703"></a><span class="lineno"> 1703</span> </div><div class="line"><a name="l01704"></a><span class="lineno"> 1704</span>  allegro_gl_upload_and_display_texture(temp2, 0, 0, x, y, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE);</div><div class="line"><a name="l01705"></a><span class="lineno"> 1705</span>  </div><div class="line"><a name="l01706"></a><span class="lineno"> 1706</span>  <span class="keywordflow">if</span> (__allegro_gl_blit_operation == AGL_OP_LOGIC_OP)</div><div class="line"><a name="l01707"></a><span class="lineno"> 1707</span>  glDisable(GL_COLOR_LOGIC_OP);</div><div class="line"><a name="l01708"></a><span class="lineno"> 1708</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l01709"></a><span class="lineno"> 1709</span>  glDisable(GL_BLEND);</div><div class="line"><a name="l01710"></a><span class="lineno"> 1710</span> </div><div class="line"><a name="l01711"></a><span class="lineno"> 1711</span>  destroy_bitmap(temp2);</div><div class="line"><a name="l01712"></a><span class="lineno"> 1712</span>  destroy_bitmap(temp);</div><div class="line"><a name="l01713"></a><span class="lineno"> 1713</span> }</div><div class="line"><a name="l01714"></a><span class="lineno"> 1714</span> </div><div class="line"><a name="l01715"></a><span class="lineno"> 1715</span> </div><div class="line"><a name="l01716"></a><span class="lineno"> 1716</span> </div><div class="line"><a name="l01717"></a><span class="lineno"> 1717</span> <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_screen_masked_blit(<span class="keyword">struct</span> BITMAP *source,</div><div class="line"><a name="l01718"></a><span class="lineno"> 1718</span>  <span class="keyword">struct</span> BITMAP *dest, <span class="keywordtype">int</span> source_x, <span class="keywordtype">int</span> source_y, <span class="keywordtype">int</span> dest_x, <span class="keywordtype">int</span> dest_y,</div><div class="line"><a name="l01719"></a><span class="lineno"> 1719</span>  <span class="keywordtype">int</span> width, <span class="keywordtype">int</span> height)</div><div class="line"><a name="l01720"></a><span class="lineno"> 1720</span> {</div><div class="line"><a name="l01721"></a><span class="lineno"> 1721</span>  AGL_LOG(2, <span class="stringliteral">"glvtable.c:allegro_gl_screen_masked_blit\n"</span>);</div><div class="line"><a name="l01722"></a><span class="lineno"> 1722</span>  do_masked_blit_screen(source, dest, source_x, source_y, dest_x, dest_y,</div><div class="line"><a name="l01723"></a><span class="lineno"> 1723</span>  width, height, FALSE, AGL_REGULAR_BMP | AGL_NO_ROTATION);</div><div class="line"><a name="l01724"></a><span class="lineno"> 1724</span> }</div><div class="line"><a name="l01725"></a><span class="lineno"> 1725</span> </div><div class="line"><a name="l01726"></a><span class="lineno"> 1726</span> </div><div class="line"><a name="l01727"></a><span class="lineno"> 1727</span> </div><div class="line"><a name="l01728"></a><span class="lineno"> 1728</span> <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_screen_draw_sprite(<span class="keyword">struct</span> BITMAP *bmp,</div><div class="line"><a name="l01729"></a><span class="lineno"> 1729</span>  <span class="keyword">struct</span> BITMAP *sprite, <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y)</div><div class="line"><a name="l01730"></a><span class="lineno"> 1730</span> {</div><div class="line"><a name="l01731"></a><span class="lineno"> 1731</span>  AGL_LOG(2, <span class="stringliteral">"glvtable.c:allegro_gl_screen_draw_sprite\n"</span>);</div><div class="line"><a name="l01732"></a><span class="lineno"> 1732</span>  do_masked_blit_screen(sprite, bmp, 0, 0, x, y, sprite->w, sprite->h,</div><div class="line"><a name="l01733"></a><span class="lineno"> 1733</span>  FALSE, AGL_NO_ROTATION);</div><div class="line"><a name="l01734"></a><span class="lineno"> 1734</span> }</div><div class="line"><a name="l01735"></a><span class="lineno"> 1735</span> </div><div class="line"><a name="l01736"></a><span class="lineno"> 1736</span> </div><div class="line"><a name="l01737"></a><span class="lineno"> 1737</span> </div><div class="line"><a name="l01738"></a><span class="lineno"> 1738</span> <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_screen_draw_sprite_v_flip(<span class="keyword">struct</span> BITMAP *bmp,</div><div class="line"><a name="l01739"></a><span class="lineno"> 1739</span>  <span class="keyword">struct</span> BITMAP *sprite, <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y)</div><div class="line"><a name="l01740"></a><span class="lineno"> 1740</span> {</div><div class="line"><a name="l01741"></a><span class="lineno"> 1741</span>  AGL_LOG(2, <span class="stringliteral">"glvtable.c:allegro_gl_screen_draw_sprite_v_flip\n"</span>);</div><div class="line"><a name="l01742"></a><span class="lineno"> 1742</span>  do_masked_blit_screen(sprite, bmp, 0, 0, x, y, sprite->w, sprite->h,</div><div class="line"><a name="l01743"></a><span class="lineno"> 1743</span>  AGL_V_FLIP, AGL_NO_ROTATION);</div><div class="line"><a name="l01744"></a><span class="lineno"> 1744</span> }</div><div class="line"><a name="l01745"></a><span class="lineno"> 1745</span> </div><div class="line"><a name="l01746"></a><span class="lineno"> 1746</span> </div><div class="line"><a name="l01747"></a><span class="lineno"> 1747</span> </div><div class="line"><a name="l01748"></a><span class="lineno"> 1748</span> <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_screen_draw_sprite_h_flip(<span class="keyword">struct</span> BITMAP *bmp,</div><div class="line"><a name="l01749"></a><span class="lineno"> 1749</span>  <span class="keyword">struct</span> BITMAP *sprite, <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y)</div><div class="line"><a name="l01750"></a><span class="lineno"> 1750</span> {</div><div class="line"><a name="l01751"></a><span class="lineno"> 1751</span>  AGL_LOG(2, <span class="stringliteral">"glvtable.c:allegro_gl_screen_draw_sprite_h_flip\n"</span>);</div><div class="line"><a name="l01752"></a><span class="lineno"> 1752</span>  do_masked_blit_screen(sprite, bmp, 0, 0, x, y, sprite->w, sprite->h,</div><div class="line"><a name="l01753"></a><span class="lineno"> 1753</span>  AGL_H_FLIP, AGL_NO_ROTATION);</div><div class="line"><a name="l01754"></a><span class="lineno"> 1754</span> }</div><div class="line"><a name="l01755"></a><span class="lineno"> 1755</span> </div><div class="line"><a name="l01756"></a><span class="lineno"> 1756</span> </div><div class="line"><a name="l01757"></a><span class="lineno"> 1757</span> </div><div class="line"><a name="l01758"></a><span class="lineno"> 1758</span> <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_screen_draw_sprite_vh_flip(<span class="keyword">struct</span> BITMAP *bmp,</div><div class="line"><a name="l01759"></a><span class="lineno"> 1759</span>  <span class="keyword">struct</span> BITMAP *sprite, <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y)</div><div class="line"><a name="l01760"></a><span class="lineno"> 1760</span> {</div><div class="line"><a name="l01761"></a><span class="lineno"> 1761</span>  AGL_LOG(2, <span class="stringliteral">"glvtable.c:allegro_gl_screen_draw_sprite_vh_flip\n"</span>);</div><div class="line"><a name="l01762"></a><span class="lineno"> 1762</span>  do_masked_blit_screen(sprite, bmp, 0, 0, x, y, sprite->w, sprite->h,</div><div class="line"><a name="l01763"></a><span class="lineno"> 1763</span>  AGL_V_FLIP | AGL_H_FLIP, AGL_NO_ROTATION);</div><div class="line"><a name="l01764"></a><span class="lineno"> 1764</span> }</div><div class="line"><a name="l01765"></a><span class="lineno"> 1765</span> </div><div class="line"><a name="l01766"></a><span class="lineno"> 1766</span> </div><div class="line"><a name="l01767"></a><span class="lineno"> 1767</span> </div><div class="line"><a name="l01768"></a><span class="lineno"> 1768</span> <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_screen_pivot_scaled_sprite_flip(<span class="keyword">struct</span> BITMAP *bmp,</div><div class="line"><a name="l01769"></a><span class="lineno"> 1769</span>  <span class="keyword">struct</span> BITMAP *sprite, fixed x, fixed y, fixed cx, fixed cy, fixed angle,</div><div class="line"><a name="l01770"></a><span class="lineno"> 1770</span>  fixed scale, <span class="keywordtype">int</span> v_flip)</div><div class="line"><a name="l01771"></a><span class="lineno"> 1771</span> {</div><div class="line"><a name="l01772"></a><span class="lineno"> 1772</span>  <span class="keywordtype">double</span> dscale = fixtof(scale);</div><div class="line"><a name="l01773"></a><span class="lineno"> 1773</span>  GLint matrix_mode;</div><div class="line"><a name="l01774"></a><span class="lineno"> 1774</span>  AGL_LOG(2, <span class="stringliteral">"glvtable.c:allegro_gl_screen_pivot_scaled_sprite_flip\n"</span>);</div><div class="line"><a name="l01775"></a><span class="lineno"> 1775</span>  </div><div class="line"><a name="l01776"></a><span class="lineno"> 1776</span> <span class="preprocessor">#define BIN_2_DEG(x) (-(x) * 180.0 / 128)</span></div><div class="line"><a name="l01777"></a><span class="lineno"> 1777</span>  </div><div class="line"><a name="l01778"></a><span class="lineno"> 1778</span>  glGetIntegerv(GL_MATRIX_MODE, &matrix_mode);</div><div class="line"><a name="l01779"></a><span class="lineno"> 1779</span>  glMatrixMode(GL_MODELVIEW);</div><div class="line"><a name="l01780"></a><span class="lineno"> 1780</span>  glPushMatrix();</div><div class="line"><a name="l01781"></a><span class="lineno"> 1781</span>  glTranslated(fixtof(x), fixtof(y), 0.);</div><div class="line"><a name="l01782"></a><span class="lineno"> 1782</span>  glRotated(BIN_2_DEG(fixtof(angle)), 0., 0., -1.);</div><div class="line"><a name="l01783"></a><span class="lineno"> 1783</span>  glScaled(dscale, dscale, dscale);</div><div class="line"><a name="l01784"></a><span class="lineno"> 1784</span>  glTranslated(-fixtof(x+cx), -fixtof(y+cy), 0.);</div><div class="line"><a name="l01785"></a><span class="lineno"> 1785</span>  </div><div class="line"><a name="l01786"></a><span class="lineno"> 1786</span>  do_masked_blit_screen(sprite, bmp, 0, 0, fixtoi(x), fixtoi(y),</div><div class="line"><a name="l01787"></a><span class="lineno"> 1787</span>  sprite->w, sprite->h, v_flip ? AGL_V_FLIP : FALSE, FALSE);</div><div class="line"><a name="l01788"></a><span class="lineno"> 1788</span>  glPopMatrix();</div><div class="line"><a name="l01789"></a><span class="lineno"> 1789</span>  glMatrixMode(matrix_mode);</div><div class="line"><a name="l01790"></a><span class="lineno"> 1790</span> </div><div class="line"><a name="l01791"></a><span class="lineno"> 1791</span> <span class="preprocessor">#undef BIN_2_DEG</span></div><div class="line"><a name="l01792"></a><span class="lineno"> 1792</span> </div><div class="line"><a name="l01793"></a><span class="lineno"> 1793</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l01794"></a><span class="lineno"> 1794</span> }</div><div class="line"><a name="l01795"></a><span class="lineno"> 1795</span> </div><div class="line"><a name="l01796"></a><span class="lineno"> 1796</span> </div><div class="line"><a name="l01797"></a><span class="lineno"> 1797</span> </div><div class="line"><a name="l01798"></a><span class="lineno"> 1798</span> <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_screen_draw_trans_rgba_sprite(<span class="keyword">struct</span> BITMAP *bmp,</div><div class="line"><a name="l01799"></a><span class="lineno"> 1799</span>  <span class="keyword">struct</span> BITMAP *sprite, <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y) {</div><div class="line"><a name="l01800"></a><span class="lineno"> 1800</span> </div><div class="line"><a name="l01801"></a><span class="lineno"> 1801</span>  <span class="keywordflow">if</span> (__allegro_gl_blit_operation == AGL_OP_LOGIC_OP)</div><div class="line"><a name="l01802"></a><span class="lineno"> 1802</span>  glEnable(GL_COLOR_LOGIC_OP);</div><div class="line"><a name="l01803"></a><span class="lineno"> 1803</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l01804"></a><span class="lineno"> 1804</span>  glEnable(GL_BLEND);</div><div class="line"><a name="l01805"></a><span class="lineno"> 1805</span> </div><div class="line"><a name="l01806"></a><span class="lineno"> 1806</span>  <span class="comment">/* video -> screen */</span></div><div class="line"><a name="l01807"></a><span class="lineno"> 1807</span>  <span class="keywordflow">if</span> (is_video_bitmap(sprite)) {</div><div class="line"><a name="l01808"></a><span class="lineno"> 1808</span>  allegro_gl_screen_blit_to_self(sprite, bmp, 0, 0, x, y, sprite->w, sprite->h);</div><div class="line"><a name="l01809"></a><span class="lineno"> 1809</span>  }</div><div class="line"><a name="l01810"></a><span class="lineno"> 1810</span>  <span class="comment">/* memory -> screen */</span></div><div class="line"><a name="l01811"></a><span class="lineno"> 1811</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (is_memory_bitmap(sprite)) {</div><div class="line"><a name="l01812"></a><span class="lineno"> 1812</span>  GLint format = __allegro_gl_get_bitmap_color_format(sprite, <a class="code" href="group__texture.html#ga8cc859eadf1610b424cd9188e716f432">AGL_TEXTURE_HAS_ALPHA</a>);</div><div class="line"><a name="l01813"></a><span class="lineno"> 1813</span>  GLint type = __allegro_gl_get_bitmap_type(sprite, 0);</div><div class="line"><a name="l01814"></a><span class="lineno"> 1814</span>  allegro_gl_upload_and_display_texture(sprite, 0, 0, x, y, sprite->w, sprite->h, 0, format, type);</div><div class="line"><a name="l01815"></a><span class="lineno"> 1815</span>  }</div><div class="line"><a name="l01816"></a><span class="lineno"> 1816</span>  </div><div class="line"><a name="l01817"></a><span class="lineno"> 1817</span>  <span class="keywordflow">if</span> (__allegro_gl_blit_operation == AGL_OP_LOGIC_OP)</div><div class="line"><a name="l01818"></a><span class="lineno"> 1818</span>  glDisable(GL_COLOR_LOGIC_OP);</div><div class="line"><a name="l01819"></a><span class="lineno"> 1819</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l01820"></a><span class="lineno"> 1820</span>  glDisable(GL_BLEND);</div><div class="line"><a name="l01821"></a><span class="lineno"> 1821</span>  </div><div class="line"><a name="l01822"></a><span class="lineno"> 1822</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l01823"></a><span class="lineno"> 1823</span> }</div><div class="line"><a name="l01824"></a><span class="lineno"> 1824</span> </div><div class="line"><a name="l01825"></a><span class="lineno"> 1825</span> </div><div class="line"><a name="l01826"></a><span class="lineno"> 1826</span> </div><div class="line"><a name="l01827"></a><span class="lineno"> 1827</span> <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_screen_draw_sprite_ex(<span class="keyword">struct</span> BITMAP *bmp,</div><div class="line"><a name="l01828"></a><span class="lineno"> 1828</span>  <span class="keyword">struct</span> BITMAP *sprite, <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y, <span class="keywordtype">int</span> mode, <span class="keywordtype">int</span> flip)</div><div class="line"><a name="l01829"></a><span class="lineno"> 1829</span> {</div><div class="line"><a name="l01830"></a><span class="lineno"> 1830</span>  <span class="keywordtype">int</span> lflip = 0;</div><div class="line"><a name="l01831"></a><span class="lineno"> 1831</span>  <span class="keywordtype">int</span> matrix_mode;</div><div class="line"><a name="l01832"></a><span class="lineno"> 1832</span>  AGL_LOG(2, <span class="stringliteral">"glvtable.c:allegro_gl_screen_draw_sprite_ex\n"</span>);</div><div class="line"><a name="l01833"></a><span class="lineno"> 1833</span> </div><div class="line"><a name="l01834"></a><span class="lineno"> 1834</span>  <span class="comment">/* convert allegro's flipping flags to AGL's flags */</span></div><div class="line"><a name="l01835"></a><span class="lineno"> 1835</span>  <span class="keywordflow">switch</span> (flip) {</div><div class="line"><a name="l01836"></a><span class="lineno"> 1836</span>  <span class="keywordflow">case</span> DRAW_SPRITE_NO_FLIP:</div><div class="line"><a name="l01837"></a><span class="lineno"> 1837</span>  lflip = FALSE;</div><div class="line"><a name="l01838"></a><span class="lineno"> 1838</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l01839"></a><span class="lineno"> 1839</span>  <span class="keywordflow">case</span> DRAW_SPRITE_V_FLIP:</div><div class="line"><a name="l01840"></a><span class="lineno"> 1840</span>  lflip = AGL_V_FLIP;</div><div class="line"><a name="l01841"></a><span class="lineno"> 1841</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l01842"></a><span class="lineno"> 1842</span>  <span class="keywordflow">case</span> DRAW_SPRITE_H_FLIP:</div><div class="line"><a name="l01843"></a><span class="lineno"> 1843</span>  lflip = AGL_H_FLIP;</div><div class="line"><a name="l01844"></a><span class="lineno"> 1844</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l01845"></a><span class="lineno"> 1845</span>  <span class="keywordflow">case</span> DRAW_SPRITE_VH_FLIP:</div><div class="line"><a name="l01846"></a><span class="lineno"> 1846</span>  lflip = AGL_V_FLIP | AGL_H_FLIP;</div><div class="line"><a name="l01847"></a><span class="lineno"> 1847</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l01848"></a><span class="lineno"> 1848</span>  }</div><div class="line"><a name="l01849"></a><span class="lineno"> 1849</span> </div><div class="line"><a name="l01850"></a><span class="lineno"> 1850</span>  <span class="keywordflow">switch</span> (mode) {</div><div class="line"><a name="l01851"></a><span class="lineno"> 1851</span>  <span class="keywordflow">case</span> DRAW_SPRITE_NORMAL:</div><div class="line"><a name="l01852"></a><span class="lineno"> 1852</span>  do_masked_blit_screen(sprite, bmp, 0, 0, x, y, sprite->w, sprite->h,</div><div class="line"><a name="l01853"></a><span class="lineno"> 1853</span>  lflip, AGL_NO_ROTATION);</div><div class="line"><a name="l01854"></a><span class="lineno"> 1854</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l01855"></a><span class="lineno"> 1855</span>  <span class="keywordflow">case</span> DRAW_SPRITE_TRANS:</div><div class="line"><a name="l01856"></a><span class="lineno"> 1856</span>  <span class="keywordflow">if</span> (lflip) {</div><div class="line"><a name="l01857"></a><span class="lineno"> 1857</span>  glGetIntegerv(GL_MATRIX_MODE, &matrix_mode);</div><div class="line"><a name="l01858"></a><span class="lineno"> 1858</span>  glMatrixMode(GL_MODELVIEW);</div><div class="line"><a name="l01859"></a><span class="lineno"> 1859</span>  glPushMatrix();</div><div class="line"><a name="l01860"></a><span class="lineno"> 1860</span> </div><div class="line"><a name="l01861"></a><span class="lineno"> 1861</span>  glTranslatef(x, y, 0.f);</div><div class="line"><a name="l01862"></a><span class="lineno"> 1862</span>  glScalef((lflip&AGL_H_FLIP) ? -1 : 1, (lflip&AGL_V_FLIP)? -1 : 1, 1);</div><div class="line"><a name="l01863"></a><span class="lineno"> 1863</span>  glTranslatef(-x, -y, 0);</div><div class="line"><a name="l01864"></a><span class="lineno"> 1864</span>  glTranslatef((lflip&AGL_H_FLIP) ? -sprite->w : 0,</div><div class="line"><a name="l01865"></a><span class="lineno"> 1865</span>  (lflip&AGL_V_FLIP) ? -sprite->h : 0, 0);</div><div class="line"><a name="l01866"></a><span class="lineno"> 1866</span>  }</div><div class="line"><a name="l01867"></a><span class="lineno"> 1867</span> </div><div class="line"><a name="l01868"></a><span class="lineno"> 1868</span>  allegro_gl_screen_draw_trans_rgba_sprite(bmp, sprite, x, y);</div><div class="line"><a name="l01869"></a><span class="lineno"> 1869</span> </div><div class="line"><a name="l01870"></a><span class="lineno"> 1870</span>  <span class="keywordflow">if</span> (lflip) {</div><div class="line"><a name="l01871"></a><span class="lineno"> 1871</span>  glPopMatrix();</div><div class="line"><a name="l01872"></a><span class="lineno"> 1872</span>  glMatrixMode(matrix_mode);</div><div class="line"><a name="l01873"></a><span class="lineno"> 1873</span>  }</div><div class="line"><a name="l01874"></a><span class="lineno"> 1874</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l01875"></a><span class="lineno"> 1875</span>  <span class="keywordflow">case</span> DRAW_SPRITE_LIT:</div><div class="line"><a name="l01876"></a><span class="lineno"> 1876</span>  <span class="comment">/* unsupported */</span></div><div class="line"><a name="l01877"></a><span class="lineno"> 1877</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l01878"></a><span class="lineno"> 1878</span>  }</div><div class="line"><a name="l01879"></a><span class="lineno"> 1879</span> }</div><div class="line"><a name="l01880"></a><span class="lineno"> 1880</span> </div><div class="line"><a name="l01881"></a><span class="lineno"> 1881</span> </div><div class="line"><a name="l01882"></a><span class="lineno"> 1882</span> </div><div class="line"><a name="l01883"></a><span class="lineno"> 1883</span> <span class="keywordtype">void</span> allegro_gl_screen_draw_glyph_ex(<span class="keyword">struct</span> BITMAP *bmp,</div><div class="line"><a name="l01884"></a><span class="lineno"> 1884</span>  AL_CONST <span class="keyword">struct</span> FONT_GLYPH *glyph, <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y,</div><div class="line"><a name="l01885"></a><span class="lineno"> 1885</span>  <span class="keywordtype">int</span> color, <span class="keywordtype">int</span> bg, <span class="keywordtype">int</span> flip)</div><div class="line"><a name="l01886"></a><span class="lineno"> 1886</span> {</div><div class="line"><a name="l01887"></a><span class="lineno"> 1887</span>  GLubyte r, g, b, a;</div><div class="line"><a name="l01888"></a><span class="lineno"> 1888</span>  <span class="keywordtype">int</span> x_offs = 0;</div><div class="line"><a name="l01889"></a><span class="lineno"> 1889</span>  <span class="keywordtype">int</span> i;</div><div class="line"><a name="l01890"></a><span class="lineno"> 1890</span> </div><div class="line"><a name="l01891"></a><span class="lineno"> 1891</span>  AGL_LOG(2, <span class="stringliteral">"glvtable.c:allegro_gl_screen_draw_glyph_ex\n"</span>);</div><div class="line"><a name="l01892"></a><span class="lineno"> 1892</span>  </div><div class="line"><a name="l01893"></a><span class="lineno"> 1893</span>  <span class="keywordflow">if</span> (bmp->clip) {</div><div class="line"><a name="l01894"></a><span class="lineno"> 1894</span>  glPushAttrib(GL_SCISSOR_BIT);</div><div class="line"><a name="l01895"></a><span class="lineno"> 1895</span>  glEnable(GL_SCISSOR_TEST);</div><div class="line"><a name="l01896"></a><span class="lineno"> 1896</span>  glScissor(bmp->x_ofs + bmp->cl, bmp->h + bmp->y_ofs - bmp->cb,</div><div class="line"><a name="l01897"></a><span class="lineno"> 1897</span>  bmp->cr - bmp->cl, bmp->cb - bmp->ct);</div><div class="line"><a name="l01898"></a><span class="lineno"> 1898</span> </div><div class="line"><a name="l01899"></a><span class="lineno"> 1899</span>  <span class="keywordflow">if</span> (x < bmp->cl) {</div><div class="line"><a name="l01900"></a><span class="lineno"> 1900</span>  x_offs -= x - bmp->cl;</div><div class="line"><a name="l01901"></a><span class="lineno"> 1901</span>  x = bmp->cl;</div><div class="line"><a name="l01902"></a><span class="lineno"> 1902</span>  }</div><div class="line"><a name="l01903"></a><span class="lineno"> 1903</span>  }</div><div class="line"><a name="l01904"></a><span class="lineno"> 1904</span>  <span class="keywordflow">if</span> (is_sub_bitmap(bmp)) {</div><div class="line"><a name="l01905"></a><span class="lineno"> 1905</span>  x += bmp->x_ofs;</div><div class="line"><a name="l01906"></a><span class="lineno"> 1906</span>  y += bmp->y_ofs;</div><div class="line"><a name="l01907"></a><span class="lineno"> 1907</span>  }</div><div class="line"><a name="l01908"></a><span class="lineno"> 1908</span>  </div><div class="line"><a name="l01909"></a><span class="lineno"> 1909</span>  <span class="keywordflow">if</span> (bg != -1) {</div><div class="line"><a name="l01910"></a><span class="lineno"> 1910</span>  split_color(bg, &r, &g, &b, &a, bitmap_color_depth(bmp));</div><div class="line"><a name="l01911"></a><span class="lineno"> 1911</span>  glColor4ub(r, g, b, a);</div><div class="line"><a name="l01912"></a><span class="lineno"> 1912</span>  glRecti(x, y, x + glyph->w, y + glyph->h); </div><div class="line"><a name="l01913"></a><span class="lineno"> 1913</span>  }</div><div class="line"><a name="l01914"></a><span class="lineno"> 1914</span> </div><div class="line"><a name="l01915"></a><span class="lineno"> 1915</span>  split_color(color, &r, &g, &b, &a, bitmap_color_depth(bmp));</div><div class="line"><a name="l01916"></a><span class="lineno"> 1916</span>  glColor4ub(r, g, b, a);</div><div class="line"><a name="l01917"></a><span class="lineno"> 1917</span>  glRasterPos2i(x, y);</div><div class="line"><a name="l01918"></a><span class="lineno"> 1918</span>  glPixelStorei(GL_UNPACK_ALIGNMENT, 1);</div><div class="line"><a name="l01919"></a><span class="lineno"> 1919</span>  glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0);</div><div class="line"><a name="l01920"></a><span class="lineno"> 1920</span> </div><div class="line"><a name="l01921"></a><span class="lineno"> 1921</span>  <span class="keywordflow">if</span> (flip) {</div><div class="line"><a name="l01922"></a><span class="lineno"> 1922</span>  <span class="keywordflow">for</span> (i = 0; i < glyph->h; i++) {</div><div class="line"><a name="l01923"></a><span class="lineno"> 1923</span>  glBitmap(glyph->w, 1, x_offs, i, 0, 2,</div><div class="line"><a name="l01924"></a><span class="lineno"> 1924</span>  glyph->dat + i * ((glyph->w + 7) / 8));</div><div class="line"><a name="l01925"></a><span class="lineno"> 1925</span>  }</div><div class="line"><a name="l01926"></a><span class="lineno"> 1926</span>  }</div><div class="line"><a name="l01927"></a><span class="lineno"> 1927</span>  <span class="keywordflow">else</span> {</div><div class="line"><a name="l01928"></a><span class="lineno"> 1928</span>  <span class="keywordflow">for</span> (i = 0; i < glyph->h; i++) {</div><div class="line"><a name="l01929"></a><span class="lineno"> 1929</span>  glBitmap(glyph->w, 1, x_offs, i, 0, 0,</div><div class="line"><a name="l01930"></a><span class="lineno"> 1930</span>  glyph->dat + i * ((glyph->w + 7) / 8));</div><div class="line"><a name="l01931"></a><span class="lineno"> 1931</span>  }</div><div class="line"><a name="l01932"></a><span class="lineno"> 1932</span>  }</div><div class="line"><a name="l01933"></a><span class="lineno"> 1933</span>  </div><div class="line"><a name="l01934"></a><span class="lineno"> 1934</span>  <span class="keywordflow">if</span> (bmp->clip) {</div><div class="line"><a name="l01935"></a><span class="lineno"> 1935</span>  glPopAttrib();</div><div class="line"><a name="l01936"></a><span class="lineno"> 1936</span>  }</div><div class="line"><a name="l01937"></a><span class="lineno"> 1937</span> </div><div class="line"><a name="l01938"></a><span class="lineno"> 1938</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l01939"></a><span class="lineno"> 1939</span> }</div><div class="line"><a name="l01940"></a><span class="lineno"> 1940</span> </div><div class="line"><a name="l01941"></a><span class="lineno"> 1941</span> </div><div class="line"><a name="l01942"></a><span class="lineno"> 1942</span> </div><div class="line"><a name="l01943"></a><span class="lineno"> 1943</span> <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_screen_draw_glyph(<span class="keyword">struct</span> BITMAP *bmp,</div><div class="line"><a name="l01944"></a><span class="lineno"> 1944</span>  AL_CONST <span class="keyword">struct</span> FONT_GLYPH *glyph, <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y,</div><div class="line"><a name="l01945"></a><span class="lineno"> 1945</span>  <span class="keywordtype">int</span> color, <span class="keywordtype">int</span> bg) {</div><div class="line"><a name="l01946"></a><span class="lineno"> 1946</span>  allegro_gl_screen_draw_glyph_ex(bmp, glyph, x, y, color, bg, 0);</div><div class="line"><a name="l01947"></a><span class="lineno"> 1947</span> }</div><div class="line"><a name="l01948"></a><span class="lineno"> 1948</span> </div><div class="line"><a name="l01949"></a><span class="lineno"> 1949</span> </div><div class="line"><a name="l01950"></a><span class="lineno"> 1950</span> </div><div class="line"><a name="l01951"></a><span class="lineno"> 1951</span> <span class="keywordtype">void</span> allegro_gl_screen_draw_color_glyph_ex(<span class="keyword">struct</span> BITMAP *bmp,</div><div class="line"><a name="l01952"></a><span class="lineno"> 1952</span>  <span class="keyword">struct</span> BITMAP *sprite, <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y, <span class="keywordtype">int</span> color, <span class="keywordtype">int</span> bg, <span class="keywordtype">int</span> flip)</div><div class="line"><a name="l01953"></a><span class="lineno"> 1953</span> {</div><div class="line"><a name="l01954"></a><span class="lineno"> 1954</span> </div><div class="line"><a name="l01955"></a><span class="lineno"> 1955</span>  <span class="comment">/* Implementation note: we should try building textures and see how well</span></div><div class="line"><a name="l01956"></a><span class="lineno"> 1956</span> <span class="comment"> * those work instead of of DrawPixels with a weird I_TO_RGBA mapping.</span></div><div class="line"><a name="l01957"></a><span class="lineno"> 1957</span> <span class="comment"> */</span></div><div class="line"><a name="l01958"></a><span class="lineno"> 1958</span>  <span class="keyword">static</span> GLfloat red_map[256];</div><div class="line"><a name="l01959"></a><span class="lineno"> 1959</span>  <span class="keyword">static</span> GLfloat green_map[256];</div><div class="line"><a name="l01960"></a><span class="lineno"> 1960</span>  <span class="keyword">static</span> GLfloat blue_map[256];</div><div class="line"><a name="l01961"></a><span class="lineno"> 1961</span>  <span class="keyword">static</span> GLfloat alpha_map[256];</div><div class="line"><a name="l01962"></a><span class="lineno"> 1962</span>  GLubyte r, g, b, a;</div><div class="line"><a name="l01963"></a><span class="lineno"> 1963</span>  <span class="keywordtype">int</span> i;</div><div class="line"><a name="l01964"></a><span class="lineno"> 1964</span>  GLint saved_row_length;</div><div class="line"><a name="l01965"></a><span class="lineno"> 1965</span>  GLint width, height;</div><div class="line"><a name="l01966"></a><span class="lineno"> 1966</span>  <span class="keywordtype">int</span> sprite_x = 0, sprite_y = 0;</div><div class="line"><a name="l01967"></a><span class="lineno"> 1967</span>  <span class="keywordtype">void</span> *data;</div><div class="line"><a name="l01968"></a><span class="lineno"> 1968</span>  <span class="keywordtype">int</span> *table;</div><div class="line"><a name="l01969"></a><span class="lineno"> 1969</span> </div><div class="line"><a name="l01970"></a><span class="lineno"> 1970</span>  width = sprite->w;</div><div class="line"><a name="l01971"></a><span class="lineno"> 1971</span>  height = sprite->h;</div><div class="line"><a name="l01972"></a><span class="lineno"> 1972</span> </div><div class="line"><a name="l01973"></a><span class="lineno"> 1973</span>  <span class="keywordflow">if</span> (bmp->clip) {</div><div class="line"><a name="l01974"></a><span class="lineno"> 1974</span>  <span class="keywordflow">if</span> ((x >= bmp->cr) || (y >= bmp->cb) || (x + width < bmp->cl)</div><div class="line"><a name="l01975"></a><span class="lineno"> 1975</span>  || (y + height < bmp->ct)) {</div><div class="line"><a name="l01976"></a><span class="lineno"> 1976</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l01977"></a><span class="lineno"> 1977</span>  }</div><div class="line"><a name="l01978"></a><span class="lineno"> 1978</span>  <span class="keywordflow">if</span> (x < bmp->cl) {</div><div class="line"><a name="l01979"></a><span class="lineno"> 1979</span>  width += x - bmp->cl;</div><div class="line"><a name="l01980"></a><span class="lineno"> 1980</span>  sprite_x -= (x - bmp->cl);</div><div class="line"><a name="l01981"></a><span class="lineno"> 1981</span>  x = bmp->cl;</div><div class="line"><a name="l01982"></a><span class="lineno"> 1982</span>  }</div><div class="line"><a name="l01983"></a><span class="lineno"> 1983</span>  <span class="keywordflow">if</span> (y < bmp->ct) {</div><div class="line"><a name="l01984"></a><span class="lineno"> 1984</span>  height += y - bmp->ct;</div><div class="line"><a name="l01985"></a><span class="lineno"> 1985</span>  sprite_y -= (y - bmp->ct);</div><div class="line"><a name="l01986"></a><span class="lineno"> 1986</span>  y = bmp->ct;</div><div class="line"><a name="l01987"></a><span class="lineno"> 1987</span>  }</div><div class="line"><a name="l01988"></a><span class="lineno"> 1988</span>  <span class="keywordflow">if</span> (x + width > bmp->cr) {</div><div class="line"><a name="l01989"></a><span class="lineno"> 1989</span>  width = bmp->cr - x;</div><div class="line"><a name="l01990"></a><span class="lineno"> 1990</span>  }</div><div class="line"><a name="l01991"></a><span class="lineno"> 1991</span>  <span class="keywordflow">if</span> (y + height > bmp->cb) {</div><div class="line"><a name="l01992"></a><span class="lineno"> 1992</span>  height = bmp->cb - y;</div><div class="line"><a name="l01993"></a><span class="lineno"> 1993</span>  }</div><div class="line"><a name="l01994"></a><span class="lineno"> 1994</span>  }</div><div class="line"><a name="l01995"></a><span class="lineno"> 1995</span>  <span class="keywordflow">if</span> (is_sub_bitmap(bmp)) {</div><div class="line"><a name="l01996"></a><span class="lineno"> 1996</span>  x += bmp->x_ofs;</div><div class="line"><a name="l01997"></a><span class="lineno"> 1997</span>  y += bmp->y_ofs;</div><div class="line"><a name="l01998"></a><span class="lineno"> 1998</span>  }</div><div class="line"><a name="l01999"></a><span class="lineno"> 1999</span> </div><div class="line"><a name="l02000"></a><span class="lineno"> 2000</span>  data = sprite->line[sprite_y]</div><div class="line"><a name="l02001"></a><span class="lineno"> 2001</span>  + sprite_x * BYTES_PER_PIXEL(bitmap_color_depth(sprite));</div><div class="line"><a name="l02002"></a><span class="lineno"> 2002</span> </div><div class="line"><a name="l02003"></a><span class="lineno"> 2003</span>  <span class="keywordflow">if</span> (bg < 0) {</div><div class="line"><a name="l02004"></a><span class="lineno"> 2004</span>  glAlphaFunc(GL_GREATER, 0.0f);</div><div class="line"><a name="l02005"></a><span class="lineno"> 2005</span>  glEnable(GL_ALPHA_TEST);</div><div class="line"><a name="l02006"></a><span class="lineno"> 2006</span>  alpha_map[0] = 0.;</div><div class="line"><a name="l02007"></a><span class="lineno"> 2007</span>  }</div><div class="line"><a name="l02008"></a><span class="lineno"> 2008</span>  <span class="keywordflow">else</span> {</div><div class="line"><a name="l02009"></a><span class="lineno"> 2009</span>  split_color(bg, &r, &g, &b, &a, bitmap_color_depth(bmp));</div><div class="line"><a name="l02010"></a><span class="lineno"> 2010</span>  red_map[0] = r / 255.;</div><div class="line"><a name="l02011"></a><span class="lineno"> 2011</span>  green_map[0] = g / 255.;</div><div class="line"><a name="l02012"></a><span class="lineno"> 2012</span>  blue_map[0] = b / 255.;</div><div class="line"><a name="l02013"></a><span class="lineno"> 2013</span>  alpha_map[0] = 1.;</div><div class="line"><a name="l02014"></a><span class="lineno"> 2014</span>  }</div><div class="line"><a name="l02015"></a><span class="lineno"> 2015</span> </div><div class="line"><a name="l02016"></a><span class="lineno"> 2016</span>  <span class="keywordflow">if</span> (color < 0) {</div><div class="line"><a name="l02017"></a><span class="lineno"> 2017</span>  table = _palette_expansion_table(bitmap_color_depth(bmp));</div><div class="line"><a name="l02018"></a><span class="lineno"> 2018</span> </div><div class="line"><a name="l02019"></a><span class="lineno"> 2019</span>  <span class="keywordflow">for</span>(i = 1; i < 255; i++) {</div><div class="line"><a name="l02020"></a><span class="lineno"> 2020</span>  split_color(table[i], &r, &g, &b, &a, bitmap_color_depth(bmp));</div><div class="line"><a name="l02021"></a><span class="lineno"> 2021</span>  red_map[i] = r / 255.;</div><div class="line"><a name="l02022"></a><span class="lineno"> 2022</span>  green_map[i] = g / 255.;</div><div class="line"><a name="l02023"></a><span class="lineno"> 2023</span>  blue_map[i] = b / 255.;</div><div class="line"><a name="l02024"></a><span class="lineno"> 2024</span>  alpha_map[i] = 1.;</div><div class="line"><a name="l02025"></a><span class="lineno"> 2025</span>  }</div><div class="line"><a name="l02026"></a><span class="lineno"> 2026</span>  }</div><div class="line"><a name="l02027"></a><span class="lineno"> 2027</span>  <span class="keywordflow">else</span> {</div><div class="line"><a name="l02028"></a><span class="lineno"> 2028</span>  split_color(color, &r, &g, &b, &a, bitmap_color_depth(bmp));</div><div class="line"><a name="l02029"></a><span class="lineno"> 2029</span> </div><div class="line"><a name="l02030"></a><span class="lineno"> 2030</span>  <span class="keywordflow">for</span>(i = 1; i < 255; i++) {</div><div class="line"><a name="l02031"></a><span class="lineno"> 2031</span>  red_map[i] = r / 255.;</div><div class="line"><a name="l02032"></a><span class="lineno"> 2032</span>  green_map[i] = g / 255.;</div><div class="line"><a name="l02033"></a><span class="lineno"> 2033</span>  blue_map[i] = b / 255.;</div><div class="line"><a name="l02034"></a><span class="lineno"> 2034</span>  alpha_map[i] = 1.;</div><div class="line"><a name="l02035"></a><span class="lineno"> 2035</span>  }</div><div class="line"><a name="l02036"></a><span class="lineno"> 2036</span>  }</div><div class="line"><a name="l02037"></a><span class="lineno"> 2037</span>  </div><div class="line"><a name="l02038"></a><span class="lineno"> 2038</span>  glPixelMapfv(GL_PIXEL_MAP_I_TO_R, 256, red_map);</div><div class="line"><a name="l02039"></a><span class="lineno"> 2039</span>  glPixelMapfv(GL_PIXEL_MAP_I_TO_G, 256, green_map);</div><div class="line"><a name="l02040"></a><span class="lineno"> 2040</span>  glPixelMapfv(GL_PIXEL_MAP_I_TO_B, 256, blue_map);</div><div class="line"><a name="l02041"></a><span class="lineno"> 2041</span>  glPixelMapfv(GL_PIXEL_MAP_I_TO_A, 256, alpha_map);</div><div class="line"><a name="l02042"></a><span class="lineno"> 2042</span>  </div><div class="line"><a name="l02043"></a><span class="lineno"> 2043</span>  glRasterPos2i(x, y);</div><div class="line"><a name="l02044"></a><span class="lineno"> 2044</span>  glPushAttrib(GL_PIXEL_MODE_BIT);</div><div class="line"><a name="l02045"></a><span class="lineno"> 2045</span>  glGetIntegerv(GL_UNPACK_ROW_LENGTH, &saved_row_length);</div><div class="line"><a name="l02046"></a><span class="lineno"> 2046</span>  </div><div class="line"><a name="l02047"></a><span class="lineno"> 2047</span>  glPixelZoom(1.0, flip ? -1.0 : 1.0);</div><div class="line"><a name="l02048"></a><span class="lineno"> 2048</span>  glPixelStorei(GL_UNPACK_ALIGNMENT, 1);</div><div class="line"><a name="l02049"></a><span class="lineno"> 2049</span>  glPixelStorei(GL_UNPACK_ROW_LENGTH, sprite->w);</div><div class="line"><a name="l02050"></a><span class="lineno"> 2050</span>  glPixelTransferi(GL_MAP_COLOR, GL_TRUE);</div><div class="line"><a name="l02051"></a><span class="lineno"> 2051</span> </div><div class="line"><a name="l02052"></a><span class="lineno"> 2052</span>  glDrawPixels(width, height, GL_COLOR_INDEX, GL_UNSIGNED_BYTE, data);</div><div class="line"><a name="l02053"></a><span class="lineno"> 2053</span>  glPixelStorei(GL_UNPACK_ROW_LENGTH, saved_row_length);</div><div class="line"><a name="l02054"></a><span class="lineno"> 2054</span>  glPopAttrib();</div><div class="line"><a name="l02055"></a><span class="lineno"> 2055</span>  <span class="keywordflow">if</span> (bg < 0) {</div><div class="line"><a name="l02056"></a><span class="lineno"> 2056</span>  glDisable(GL_ALPHA_TEST);</div><div class="line"><a name="l02057"></a><span class="lineno"> 2057</span>  }</div><div class="line"><a name="l02058"></a><span class="lineno"> 2058</span> </div><div class="line"><a name="l02059"></a><span class="lineno"> 2059</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l02060"></a><span class="lineno"> 2060</span> }</div><div class="line"><a name="l02061"></a><span class="lineno"> 2061</span> </div><div class="line"><a name="l02062"></a><span class="lineno"> 2062</span> </div><div class="line"><a name="l02063"></a><span class="lineno"> 2063</span> </div><div class="line"><a name="l02064"></a><span class="lineno"> 2064</span> <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_screen_draw_color_glyph(<span class="keyword">struct</span> BITMAP *bmp,</div><div class="line"><a name="l02065"></a><span class="lineno"> 2065</span>  <span class="keyword">struct</span> BITMAP *sprite, <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y, <span class="keywordtype">int</span> color, <span class="keywordtype">int</span> bg) {</div><div class="line"><a name="l02066"></a><span class="lineno"> 2066</span>  allegro_gl_screen_draw_color_glyph_ex(bmp, sprite, x, y, color, bg, 1);</div><div class="line"><a name="l02067"></a><span class="lineno"> 2067</span> }</div><div class="line"><a name="l02068"></a><span class="lineno"> 2068</span> </div><div class="line"><a name="l02069"></a><span class="lineno"> 2069</span> </div><div class="line"><a name="l02070"></a><span class="lineno"> 2070</span> </div><div class="line"><a name="l02071"></a><span class="lineno"> 2071</span> <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_screen_draw_character(<span class="keyword">struct</span> BITMAP *bmp,</div><div class="line"><a name="l02072"></a><span class="lineno"> 2072</span>  <span class="keyword">struct</span> BITMAP *sprite, <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y, <span class="keywordtype">int</span> color, <span class="keywordtype">int</span> bg)</div><div class="line"><a name="l02073"></a><span class="lineno"> 2073</span> {</div><div class="line"><a name="l02074"></a><span class="lineno"> 2074</span>  AGL_LOG(2, <span class="stringliteral">"glvtable.c:allegro_gl_screen_draw_character\n"</span>);</div><div class="line"><a name="l02075"></a><span class="lineno"> 2075</span>  allegro_gl_screen_draw_color_glyph(bmp, sprite, x, y, color, bg);</div><div class="line"><a name="l02076"></a><span class="lineno"> 2076</span> }</div><div class="line"><a name="l02077"></a><span class="lineno"> 2077</span> </div><div class="line"><a name="l02078"></a><span class="lineno"> 2078</span> </div><div class="line"><a name="l02079"></a><span class="lineno"> 2079</span> </div><div class="line"><a name="l02080"></a><span class="lineno"> 2080</span> <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_screen_draw_256_sprite(<span class="keyword">struct</span> BITMAP *bmp,</div><div class="line"><a name="l02081"></a><span class="lineno"> 2081</span>  <span class="keyword">struct</span> BITMAP *sprite, <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y)</div><div class="line"><a name="l02082"></a><span class="lineno"> 2082</span> {</div><div class="line"><a name="l02083"></a><span class="lineno"> 2083</span>  AGL_LOG(2, <span class="stringliteral">"glvtable.c:allegro_gl_screen_draw_256_sprite\n"</span>);</div><div class="line"><a name="l02084"></a><span class="lineno"> 2084</span>  allegro_gl_screen_draw_color_glyph(bmp, sprite, x, y, -1, -1);</div><div class="line"><a name="l02085"></a><span class="lineno"> 2085</span> }</div><div class="line"><a name="l02086"></a><span class="lineno"> 2086</span> </div><div class="line"><a name="l02087"></a><span class="lineno"> 2087</span> </div><div class="line"><a name="l02088"></a><span class="lineno"> 2088</span> </div><div class="line"><a name="l02089"></a><span class="lineno"> 2089</span> <span class="keywordtype">void</span> allegro_gl_screen_clear_to_color(<span class="keyword">struct</span> BITMAP *bmp, <span class="keywordtype">int</span> color)</div><div class="line"><a name="l02090"></a><span class="lineno"> 2090</span> {</div><div class="line"><a name="l02091"></a><span class="lineno"> 2091</span>  <span class="keywordflow">if</span> (__agl_drawing_pattern_tex || bmp->clip) {</div><div class="line"><a name="l02092"></a><span class="lineno"> 2092</span>  allegro_gl_screen_rectfill(bmp, 0, 0, bmp->w, bmp->h, color);</div><div class="line"><a name="l02093"></a><span class="lineno"> 2093</span>  }</div><div class="line"><a name="l02094"></a><span class="lineno"> 2094</span>  <span class="keywordflow">else</span> {</div><div class="line"><a name="l02095"></a><span class="lineno"> 2095</span>  GLubyte r, g, b, a;</div><div class="line"><a name="l02096"></a><span class="lineno"> 2096</span>  GLfloat old_col[4];</div><div class="line"><a name="l02097"></a><span class="lineno"> 2097</span>  </div><div class="line"><a name="l02098"></a><span class="lineno"> 2098</span>  split_color(color, &r, &g, &b, &a, bitmap_color_depth(bmp));</div><div class="line"><a name="l02099"></a><span class="lineno"> 2099</span>  </div><div class="line"><a name="l02100"></a><span class="lineno"> 2100</span>  glGetFloatv(GL_COLOR_CLEAR_VALUE, old_col);</div><div class="line"><a name="l02101"></a><span class="lineno"> 2101</span>  glClearColor(((<span class="keywordtype">float</span>) r / 255), ((<span class="keywordtype">float</span>) g / 255), ((<span class="keywordtype">float</span>) b / 255),</div><div class="line"><a name="l02102"></a><span class="lineno"> 2102</span>  ((<span class="keywordtype">float</span>) a / 255));</div><div class="line"><a name="l02103"></a><span class="lineno"> 2103</span> </div><div class="line"><a name="l02104"></a><span class="lineno"> 2104</span>  glClear(GL_COLOR_BUFFER_BIT);</div><div class="line"><a name="l02105"></a><span class="lineno"> 2105</span>  glClearColor(old_col[0], old_col[1], old_col[2], old_col[3]);</div><div class="line"><a name="l02106"></a><span class="lineno"> 2106</span>  }</div><div class="line"><a name="l02107"></a><span class="lineno"> 2107</span> </div><div class="line"><a name="l02108"></a><span class="lineno"> 2108</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l02109"></a><span class="lineno"> 2109</span> }</div><div class="line"><a name="l02110"></a><span class="lineno"> 2110</span> </div><div class="line"><a name="l02111"></a><span class="lineno"> 2111</span> </div><div class="line"><a name="l02112"></a><span class="lineno"> 2112</span> </div><div class="line"><a name="l02113"></a><span class="lineno"> 2113</span> <span class="comment">/* TODO: Handle concave and self-intersecting. */</span></div><div class="line"><a name="l02114"></a><span class="lineno"> 2114</span> <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_screen_polygon(<span class="keyword">struct</span> BITMAP *bmp, <span class="keywordtype">int</span> vertices,</div><div class="line"><a name="l02115"></a><span class="lineno"> 2115</span>  AL_CONST <span class="keywordtype">int</span> *points, <span class="keywordtype">int</span> color) {</div><div class="line"><a name="l02116"></a><span class="lineno"> 2116</span>  GLubyte r, g, b, a;</div><div class="line"><a name="l02117"></a><span class="lineno"> 2117</span>  <span class="keywordtype">int</span> i;</div><div class="line"><a name="l02118"></a><span class="lineno"> 2118</span> </div><div class="line"><a name="l02119"></a><span class="lineno"> 2119</span>  split_color(color, &r, &g, &b, &a, bitmap_color_depth(bmp));</div><div class="line"><a name="l02120"></a><span class="lineno"> 2120</span>  glColor4ub(r, g, b, a);</div><div class="line"><a name="l02121"></a><span class="lineno"> 2121</span>  </div><div class="line"><a name="l02122"></a><span class="lineno"> 2122</span>  glPushAttrib(GL_SCISSOR_BIT);</div><div class="line"><a name="l02123"></a><span class="lineno"> 2123</span> </div><div class="line"><a name="l02124"></a><span class="lineno"> 2124</span>  <span class="keywordflow">if</span> (bmp->clip) {</div><div class="line"><a name="l02125"></a><span class="lineno"> 2125</span>  glEnable(GL_SCISSOR_TEST);</div><div class="line"><a name="l02126"></a><span class="lineno"> 2126</span>  glScissor(bmp->x_ofs + bmp->cl, bmp->h + bmp->y_ofs - bmp->cb,</div><div class="line"><a name="l02127"></a><span class="lineno"> 2127</span>  bmp->cr - bmp->cl, bmp->cb - bmp->ct);</div><div class="line"><a name="l02128"></a><span class="lineno"> 2128</span>  }</div><div class="line"><a name="l02129"></a><span class="lineno"> 2129</span>  <span class="keywordflow">else</span> {</div><div class="line"><a name="l02130"></a><span class="lineno"> 2130</span>  glScissor(0, 0, bmp->w, bmp->h);</div><div class="line"><a name="l02131"></a><span class="lineno"> 2131</span>  }</div><div class="line"><a name="l02132"></a><span class="lineno"> 2132</span> </div><div class="line"><a name="l02133"></a><span class="lineno"> 2133</span>  glBegin(GL_POLYGON);</div><div class="line"><a name="l02134"></a><span class="lineno"> 2134</span>  <span class="keywordflow">for</span> (i = 0; i < vertices*2-1; i+=2) {</div><div class="line"><a name="l02135"></a><span class="lineno"> 2135</span>  SET_TEX_COORDS(points[i], points[i+1]);</div><div class="line"><a name="l02136"></a><span class="lineno"> 2136</span>  <span class="keywordflow">if</span> (is_sub_bitmap(bmp)) {</div><div class="line"><a name="l02137"></a><span class="lineno"> 2137</span>  glVertex2f(points[i] + bmp->x_ofs, points[i+1] + bmp->y_ofs);</div><div class="line"><a name="l02138"></a><span class="lineno"> 2138</span>  }</div><div class="line"><a name="l02139"></a><span class="lineno"> 2139</span>  <span class="keywordflow">else</span> {</div><div class="line"><a name="l02140"></a><span class="lineno"> 2140</span>  glVertex2f(points[i], points[i+1]);</div><div class="line"><a name="l02141"></a><span class="lineno"> 2141</span>  }</div><div class="line"><a name="l02142"></a><span class="lineno"> 2142</span>  }</div><div class="line"><a name="l02143"></a><span class="lineno"> 2143</span>  glEnd();</div><div class="line"><a name="l02144"></a><span class="lineno"> 2144</span> </div><div class="line"><a name="l02145"></a><span class="lineno"> 2145</span>  glPopAttrib();</div><div class="line"><a name="l02146"></a><span class="lineno"> 2146</span> }</div><div class="line"><a name="l02147"></a><span class="lineno"> 2147</span> </div><div class="line"><a name="l02148"></a><span class="lineno"> 2148</span> </div><div class="line"><a name="l02149"></a><span class="lineno"> 2149</span> </div><div class="line"><a name="l02150"></a><span class="lineno"> 2150</span> <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_screen_rect(<span class="keyword">struct</span> BITMAP *bmp,</div><div class="line"><a name="l02151"></a><span class="lineno"> 2151</span>  <span class="keywordtype">int</span> x1, <span class="keywordtype">int</span> y1, <span class="keywordtype">int</span> x2, <span class="keywordtype">int</span> y2, <span class="keywordtype">int</span> color) {</div><div class="line"><a name="l02152"></a><span class="lineno"> 2152</span>  GLubyte r, g, b, a;</div><div class="line"><a name="l02153"></a><span class="lineno"> 2153</span> </div><div class="line"><a name="l02154"></a><span class="lineno"> 2154</span>  split_color(color, &r, &g, &b, &a, bitmap_color_depth(bmp));</div><div class="line"><a name="l02155"></a><span class="lineno"> 2155</span>  glColor4ub(r, g, b, a);</div><div class="line"><a name="l02156"></a><span class="lineno"> 2156</span>  </div><div class="line"><a name="l02157"></a><span class="lineno"> 2157</span>  glPushAttrib(GL_SCISSOR_BIT);</div><div class="line"><a name="l02158"></a><span class="lineno"> 2158</span> </div><div class="line"><a name="l02159"></a><span class="lineno"> 2159</span>  <span class="keywordflow">if</span> (bmp->clip) {</div><div class="line"><a name="l02160"></a><span class="lineno"> 2160</span>  glEnable(GL_SCISSOR_TEST);</div><div class="line"><a name="l02161"></a><span class="lineno"> 2161</span>  glScissor(bmp->x_ofs + bmp->cl, bmp->h + bmp->y_ofs - bmp->cb,</div><div class="line"><a name="l02162"></a><span class="lineno"> 2162</span>  bmp->cr - bmp->cl, bmp->cb - bmp->ct);</div><div class="line"><a name="l02163"></a><span class="lineno"> 2163</span>  }</div><div class="line"><a name="l02164"></a><span class="lineno"> 2164</span>  <span class="keywordflow">else</span> {</div><div class="line"><a name="l02165"></a><span class="lineno"> 2165</span>  glScissor(0, 0, bmp->w, bmp->h);</div><div class="line"><a name="l02166"></a><span class="lineno"> 2166</span>  }</div><div class="line"><a name="l02167"></a><span class="lineno"> 2167</span>  <span class="keywordflow">if</span> (is_sub_bitmap(bmp)) {</div><div class="line"><a name="l02168"></a><span class="lineno"> 2168</span>  x1 += bmp->x_ofs;</div><div class="line"><a name="l02169"></a><span class="lineno"> 2169</span>  x2 += bmp->x_ofs;</div><div class="line"><a name="l02170"></a><span class="lineno"> 2170</span>  y1 += bmp->y_ofs;</div><div class="line"><a name="l02171"></a><span class="lineno"> 2171</span>  y2 += bmp->y_ofs;</div><div class="line"><a name="l02172"></a><span class="lineno"> 2172</span>  }</div><div class="line"><a name="l02173"></a><span class="lineno"> 2173</span> </div><div class="line"><a name="l02174"></a><span class="lineno"> 2174</span>  glBegin(GL_LINE_STRIP);</div><div class="line"><a name="l02175"></a><span class="lineno"> 2175</span>  glVertex2f(x1, y1);</div><div class="line"><a name="l02176"></a><span class="lineno"> 2176</span>  glVertex2f(x2, y1);</div><div class="line"><a name="l02177"></a><span class="lineno"> 2177</span>  glVertex2f(x2, y2);</div><div class="line"><a name="l02178"></a><span class="lineno"> 2178</span>  glVertex2f(x1, y2);</div><div class="line"><a name="l02179"></a><span class="lineno"> 2179</span>  glVertex2f(x1, y1);</div><div class="line"><a name="l02180"></a><span class="lineno"> 2180</span>  glEnd();</div><div class="line"><a name="l02181"></a><span class="lineno"> 2181</span> </div><div class="line"><a name="l02182"></a><span class="lineno"> 2182</span>  glPopAttrib();</div><div class="line"><a name="l02183"></a><span class="lineno"> 2183</span> }</div><div class="line"><a name="l02184"></a><span class="lineno"> 2184</span> </div><div class="line"><a name="l02185"></a><span class="lineno"> 2185</span> </div><div class="line"><a name="l02186"></a><span class="lineno"> 2186</span> </div><div class="line"><a name="l02187"></a><span class="lineno"> 2187</span> <span class="keywordtype">void</span> allegro_gl_screen_polygon3d_f(<span class="keyword">struct</span> BITMAP *bmp, <span class="keywordtype">int</span> type,</div><div class="line"><a name="l02188"></a><span class="lineno"> 2188</span>  <span class="keyword">struct</span> BITMAP *texture, <span class="keywordtype">int</span> vc,</div><div class="line"><a name="l02189"></a><span class="lineno"> 2189</span>  V3D_f *vtx[]) {</div><div class="line"><a name="l02190"></a><span class="lineno"> 2190</span>  <span class="keywordtype">int</span> i;</div><div class="line"><a name="l02191"></a><span class="lineno"> 2191</span>  <span class="keywordtype">int</span> use_z = FALSE;</div><div class="line"><a name="l02192"></a><span class="lineno"> 2192</span> </div><div class="line"><a name="l02193"></a><span class="lineno"> 2193</span>  <span class="keywordflow">if</span> (type & POLYTYPE_ZBUF) {</div><div class="line"><a name="l02194"></a><span class="lineno"> 2194</span>  use_z = TRUE;</div><div class="line"><a name="l02195"></a><span class="lineno"> 2195</span>  type &= ~POLYTYPE_ZBUF;</div><div class="line"><a name="l02196"></a><span class="lineno"> 2196</span>  }</div><div class="line"><a name="l02197"></a><span class="lineno"> 2197</span> </div><div class="line"><a name="l02198"></a><span class="lineno"> 2198</span>  <span class="keywordflow">if</span> (type == POLYTYPE_PTEX || type == POLYTYPE_PTEX_TRANS)</div><div class="line"><a name="l02199"></a><span class="lineno"> 2199</span>  use_z = TRUE;</div><div class="line"><a name="l02200"></a><span class="lineno"> 2200</span> </div><div class="line"><a name="l02201"></a><span class="lineno"> 2201</span>  <span class="keywordflow">if</span> (bmp->clip) {</div><div class="line"><a name="l02202"></a><span class="lineno"> 2202</span>  glPushAttrib(GL_SCISSOR_BIT);</div><div class="line"><a name="l02203"></a><span class="lineno"> 2203</span>  glEnable(GL_SCISSOR_TEST);</div><div class="line"><a name="l02204"></a><span class="lineno"> 2204</span>  glScissor(bmp->x_ofs + bmp->cl, bmp->h + bmp->y_ofs - bmp->cb,</div><div class="line"><a name="l02205"></a><span class="lineno"> 2205</span>  bmp->cr - bmp->cl, bmp->cb - bmp->ct);</div><div class="line"><a name="l02206"></a><span class="lineno"> 2206</span>  }</div><div class="line"><a name="l02207"></a><span class="lineno"> 2207</span>  <span class="keywordflow">if</span> (is_sub_bitmap(bmp)) {</div><div class="line"><a name="l02208"></a><span class="lineno"> 2208</span>  <span class="keywordflow">for</span> (i = 0; i < vc*2-1; i+=2) {</div><div class="line"><a name="l02209"></a><span class="lineno"> 2209</span>  vtx[i] += bmp->x_ofs;</div><div class="line"><a name="l02210"></a><span class="lineno"> 2210</span>  vtx[i+1] += bmp->y_ofs;</div><div class="line"><a name="l02211"></a><span class="lineno"> 2211</span>  }</div><div class="line"><a name="l02212"></a><span class="lineno"> 2212</span>  }</div><div class="line"><a name="l02213"></a><span class="lineno"> 2213</span> </div><div class="line"><a name="l02214"></a><span class="lineno"> 2214</span>  <span class="keywordflow">if</span> (use_z) {</div><div class="line"><a name="l02215"></a><span class="lineno"> 2215</span>  glEnable(GL_DEPTH_TEST);</div><div class="line"><a name="l02216"></a><span class="lineno"> 2216</span>  glDepthFunc(GL_LESS);</div><div class="line"><a name="l02217"></a><span class="lineno"> 2217</span>  glDepthMask(GL_TRUE);</div><div class="line"><a name="l02218"></a><span class="lineno"> 2218</span>  }</div><div class="line"><a name="l02219"></a><span class="lineno"> 2219</span> </div><div class="line"><a name="l02220"></a><span class="lineno"> 2220</span>  glColor4ub(255, 255, 255, 255);</div><div class="line"><a name="l02221"></a><span class="lineno"> 2221</span> </div><div class="line"><a name="l02222"></a><span class="lineno"> 2222</span>  <span class="keywordflow">if</span> (type == POLYTYPE_ATEX || type == POLYTYPE_PTEX</div><div class="line"><a name="l02223"></a><span class="lineno"> 2223</span>  || type == POLYTYPE_ATEX_TRANS || type == POLYTYPE_PTEX_TRANS) {</div><div class="line"><a name="l02224"></a><span class="lineno"> 2224</span>  drawing_mode(DRAW_MODE_COPY_PATTERN, texture, 0, 0);</div><div class="line"><a name="l02225"></a><span class="lineno"> 2225</span>  }</div><div class="line"><a name="l02226"></a><span class="lineno"> 2226</span> </div><div class="line"><a name="l02227"></a><span class="lineno"> 2227</span>  <span class="keywordflow">if</span> (type == POLYTYPE_ATEX_TRANS || type == POLYTYPE_PTEX_TRANS) {</div><div class="line"><a name="l02228"></a><span class="lineno"> 2228</span>  glEnable(GL_BLEND);</div><div class="line"><a name="l02229"></a><span class="lineno"> 2229</span>  }</div><div class="line"><a name="l02230"></a><span class="lineno"> 2230</span> </div><div class="line"><a name="l02231"></a><span class="lineno"> 2231</span>  glBegin(GL_POLYGON);</div><div class="line"><a name="l02232"></a><span class="lineno"> 2232</span>  <span class="keywordflow">for</span> (i = 0; i < vc; i++) {</div><div class="line"><a name="l02233"></a><span class="lineno"> 2233</span>  <span class="keywordflow">if</span> (type == POLYTYPE_FLAT)</div><div class="line"><a name="l02234"></a><span class="lineno"> 2234</span>  glColor3ub(getr(vtx[0]->c), getg(vtx[0]->c), getb(vtx[0]->c));</div><div class="line"><a name="l02235"></a><span class="lineno"> 2235</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (type == POLYTYPE_GRGB)</div><div class="line"><a name="l02236"></a><span class="lineno"> 2236</span>  glColor3ub(getr24(vtx[i]->c), getg24(vtx[i]->c), getb24(vtx[i]->c));</div><div class="line"><a name="l02237"></a><span class="lineno"> 2237</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (type == POLYTYPE_GCOL)</div><div class="line"><a name="l02238"></a><span class="lineno"> 2238</span>  glColor3ub(getr(vtx[i]->c), getg(vtx[i]->c), getb(vtx[i]->c));</div><div class="line"><a name="l02239"></a><span class="lineno"> 2239</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (type == POLYTYPE_ATEX || type == POLYTYPE_PTEX</div><div class="line"><a name="l02240"></a><span class="lineno"> 2240</span>  || type == POLYTYPE_ATEX_TRANS || type == POLYTYPE_PTEX_TRANS) {</div><div class="line"><a name="l02241"></a><span class="lineno"> 2241</span>  SET_TEX_COORDS(vtx[i]->u, vtx[i]->v);</div><div class="line"><a name="l02242"></a><span class="lineno"> 2242</span>  }</div><div class="line"><a name="l02243"></a><span class="lineno"> 2243</span> </div><div class="line"><a name="l02244"></a><span class="lineno"> 2244</span>  <span class="keywordflow">if</span> (use_z)</div><div class="line"><a name="l02245"></a><span class="lineno"> 2245</span>  glVertex3f(vtx[i]->x, vtx[i]->y, 1.f / vtx[i]->z);</div><div class="line"><a name="l02246"></a><span class="lineno"> 2246</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l02247"></a><span class="lineno"> 2247</span>  glVertex2f(vtx[i]->x, vtx[i]->y);</div><div class="line"><a name="l02248"></a><span class="lineno"> 2248</span>  }</div><div class="line"><a name="l02249"></a><span class="lineno"> 2249</span>  glEnd();</div><div class="line"><a name="l02250"></a><span class="lineno"> 2250</span> </div><div class="line"><a name="l02251"></a><span class="lineno"> 2251</span>  <span class="keywordflow">if</span> (bmp->clip)</div><div class="line"><a name="l02252"></a><span class="lineno"> 2252</span>  glPopAttrib();</div><div class="line"><a name="l02253"></a><span class="lineno"> 2253</span> </div><div class="line"><a name="l02254"></a><span class="lineno"> 2254</span>  <span class="keywordflow">if</span> (use_z) {</div><div class="line"><a name="l02255"></a><span class="lineno"> 2255</span>  glDisable(GL_DEPTH_TEST);</div><div class="line"><a name="l02256"></a><span class="lineno"> 2256</span>  glDepthMask(GL_FALSE);</div><div class="line"><a name="l02257"></a><span class="lineno"> 2257</span>  }</div><div class="line"><a name="l02258"></a><span class="lineno"> 2258</span> </div><div class="line"><a name="l02259"></a><span class="lineno"> 2259</span>  <span class="keywordflow">if</span> (type == POLYTYPE_ATEX || type == POLYTYPE_PTEX</div><div class="line"><a name="l02260"></a><span class="lineno"> 2260</span>  || type == POLYTYPE_ATEX_TRANS || type == POLYTYPE_PTEX_TRANS) {</div><div class="line"><a name="l02261"></a><span class="lineno"> 2261</span>  solid_mode();</div><div class="line"><a name="l02262"></a><span class="lineno"> 2262</span>  }</div><div class="line"><a name="l02263"></a><span class="lineno"> 2263</span> </div><div class="line"><a name="l02264"></a><span class="lineno"> 2264</span>  <span class="keywordflow">if</span> (type == POLYTYPE_ATEX_TRANS || type == POLYTYPE_PTEX_TRANS)</div><div class="line"><a name="l02265"></a><span class="lineno"> 2265</span>  glDisable(GL_BLEND);</div><div class="line"><a name="l02266"></a><span class="lineno"> 2266</span> }</div><div class="line"><a name="l02267"></a><span class="lineno"> 2267</span> </div><div class="line"><a name="l02268"></a><span class="lineno"> 2268</span> </div><div class="line"><a name="l02269"></a><span class="lineno"> 2269</span> </div><div class="line"><a name="l02270"></a><span class="lineno"> 2270</span> <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_screen_polygon3d(<span class="keyword">struct</span> BITMAP *bmp, <span class="keywordtype">int</span> type,</div><div class="line"><a name="l02271"></a><span class="lineno"> 2271</span>  <span class="keyword">struct</span> BITMAP *texture, <span class="keywordtype">int</span> vc,</div><div class="line"><a name="l02272"></a><span class="lineno"> 2272</span>  V3D *vtx[]) {</div><div class="line"><a name="l02273"></a><span class="lineno"> 2273</span>  <span class="keywordtype">int</span> i;</div><div class="line"><a name="l02274"></a><span class="lineno"> 2274</span>  V3D_f **vtx_f = malloc(vc * <span class="keyword">sizeof</span>(<span class="keyword">struct</span> V3D_f*));</div><div class="line"><a name="l02275"></a><span class="lineno"> 2275</span>  <span class="keywordflow">if</span> (!vtx_f)</div><div class="line"><a name="l02276"></a><span class="lineno"> 2276</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l02277"></a><span class="lineno"> 2277</span> </div><div class="line"><a name="l02278"></a><span class="lineno"> 2278</span>  <span class="keywordflow">for</span> (i = 0; i < vc; i++) {</div><div class="line"><a name="l02279"></a><span class="lineno"> 2279</span>  vtx_f[i] = malloc(<span class="keyword">sizeof</span>(<span class="keyword">struct</span> V3D_f));</div><div class="line"><a name="l02280"></a><span class="lineno"> 2280</span>  <span class="keywordflow">if</span> (!vtx_f[i]) {</div><div class="line"><a name="l02281"></a><span class="lineno"> 2281</span>  <span class="keywordtype">int</span> k;</div><div class="line"><a name="l02282"></a><span class="lineno"> 2282</span>  <span class="keywordflow">for</span> (k = 0; k < i; k++)</div><div class="line"><a name="l02283"></a><span class="lineno"> 2283</span>  free(vtx_f[k]);</div><div class="line"><a name="l02284"></a><span class="lineno"> 2284</span>  free(vtx_f);</div><div class="line"><a name="l02285"></a><span class="lineno"> 2285</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l02286"></a><span class="lineno"> 2286</span>  }</div><div class="line"><a name="l02287"></a><span class="lineno"> 2287</span>  vtx_f[i]->c = vtx[i]->c;</div><div class="line"><a name="l02288"></a><span class="lineno"> 2288</span>  vtx_f[i]->u = fixtof(vtx[i]->u);</div><div class="line"><a name="l02289"></a><span class="lineno"> 2289</span>  vtx_f[i]->v = fixtof(vtx[i]->v);</div><div class="line"><a name="l02290"></a><span class="lineno"> 2290</span>  vtx_f[i]->x = fixtof(vtx[i]->x);</div><div class="line"><a name="l02291"></a><span class="lineno"> 2291</span>  vtx_f[i]->y = fixtof(vtx[i]->y);</div><div class="line"><a name="l02292"></a><span class="lineno"> 2292</span>  vtx_f[i]->z = fixtof(vtx[i]->z);</div><div class="line"><a name="l02293"></a><span class="lineno"> 2293</span>  }</div><div class="line"><a name="l02294"></a><span class="lineno"> 2294</span> </div><div class="line"><a name="l02295"></a><span class="lineno"> 2295</span>  allegro_gl_screen_polygon3d_f(bmp, type, texture, vc, vtx_f);</div><div class="line"><a name="l02296"></a><span class="lineno"> 2296</span>  <span class="keywordflow">for</span> (i = 0; i < vc; i++)</div><div class="line"><a name="l02297"></a><span class="lineno"> 2297</span>  free(vtx_f[i]);</div><div class="line"><a name="l02298"></a><span class="lineno"> 2298</span>  free(vtx_f);</div><div class="line"><a name="l02299"></a><span class="lineno"> 2299</span> }</div><div class="line"><a name="l02300"></a><span class="lineno"> 2300</span> </div><div class="line"><a name="l02301"></a><span class="lineno"> 2301</span> </div><div class="line"><a name="l02302"></a><span class="lineno"> 2302</span> <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_screen_quad3d_f(<span class="keyword">struct</span> BITMAP *bmp, <span class="keywordtype">int</span> type,</div><div class="line"><a name="l02303"></a><span class="lineno"> 2303</span>  <span class="keyword">struct</span> BITMAP *texture,</div><div class="line"><a name="l02304"></a><span class="lineno"> 2304</span>  V3D_f *v1, V3D_f *v2, V3D_f *v3, V3D_f *v4) {</div><div class="line"><a name="l02305"></a><span class="lineno"> 2305</span> </div><div class="line"><a name="l02306"></a><span class="lineno"> 2306</span>  V3D_f *vtx_f[4];</div><div class="line"><a name="l02307"></a><span class="lineno"> 2307</span>  vtx_f[0] = v1;</div><div class="line"><a name="l02308"></a><span class="lineno"> 2308</span>  vtx_f[1] = v2;</div><div class="line"><a name="l02309"></a><span class="lineno"> 2309</span>  vtx_f[2] = v3;</div><div class="line"><a name="l02310"></a><span class="lineno"> 2310</span>  vtx_f[3] = v4;</div><div class="line"><a name="l02311"></a><span class="lineno"> 2311</span> </div><div class="line"><a name="l02312"></a><span class="lineno"> 2312</span>  allegro_gl_screen_polygon3d_f(bmp, type, texture, 4, vtx_f);</div><div class="line"><a name="l02313"></a><span class="lineno"> 2313</span> }</div><div class="line"><a name="l02314"></a><span class="lineno"> 2314</span> </div><div class="line"><a name="l02315"></a><span class="lineno"> 2315</span> </div><div class="line"><a name="l02316"></a><span class="lineno"> 2316</span> </div><div class="line"><a name="l02317"></a><span class="lineno"> 2317</span> <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_screen_quad3d(<span class="keyword">struct</span> BITMAP *bmp, <span class="keywordtype">int</span> type,</div><div class="line"><a name="l02318"></a><span class="lineno"> 2318</span>  <span class="keyword">struct</span> BITMAP *texture, V3D *v1, V3D *v2, V3D *v3, V3D *v4) {</div><div class="line"><a name="l02319"></a><span class="lineno"> 2319</span> </div><div class="line"><a name="l02320"></a><span class="lineno"> 2320</span>  V3D *vtx[4];</div><div class="line"><a name="l02321"></a><span class="lineno"> 2321</span>  vtx[0] = v1;</div><div class="line"><a name="l02322"></a><span class="lineno"> 2322</span>  vtx[1] = v2;</div><div class="line"><a name="l02323"></a><span class="lineno"> 2323</span>  vtx[2] = v3;</div><div class="line"><a name="l02324"></a><span class="lineno"> 2324</span>  vtx[3] = v4;</div><div class="line"><a name="l02325"></a><span class="lineno"> 2325</span> </div><div class="line"><a name="l02326"></a><span class="lineno"> 2326</span>  allegro_gl_screen_polygon3d(bmp, type, texture, 4, vtx);</div><div class="line"><a name="l02327"></a><span class="lineno"> 2327</span> }</div><div class="line"><a name="l02328"></a><span class="lineno"> 2328</span> </div><div class="line"><a name="l02329"></a><span class="lineno"> 2329</span> </div><div class="line"><a name="l02330"></a><span class="lineno"> 2330</span> </div><div class="line"><a name="l02331"></a><span class="lineno"> 2331</span> <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_screen_triangle3d(<span class="keyword">struct</span> BITMAP *bmp, <span class="keywordtype">int</span> type,</div><div class="line"><a name="l02332"></a><span class="lineno"> 2332</span>  <span class="keyword">struct</span> BITMAP *texture,</div><div class="line"><a name="l02333"></a><span class="lineno"> 2333</span>  V3D *v1, V3D *v2, V3D *v3) {</div><div class="line"><a name="l02334"></a><span class="lineno"> 2334</span>  V3D *vtx[3];</div><div class="line"><a name="l02335"></a><span class="lineno"> 2335</span>  vtx[0] = v1;</div><div class="line"><a name="l02336"></a><span class="lineno"> 2336</span>  vtx[1] = v2;</div><div class="line"><a name="l02337"></a><span class="lineno"> 2337</span>  vtx[2] = v3;</div><div class="line"><a name="l02338"></a><span class="lineno"> 2338</span> </div><div class="line"><a name="l02339"></a><span class="lineno"> 2339</span>  allegro_gl_screen_polygon3d(bmp, type, texture, 3, vtx);</div><div class="line"><a name="l02340"></a><span class="lineno"> 2340</span> }</div><div class="line"><a name="l02341"></a><span class="lineno"> 2341</span> </div><div class="line"><a name="l02342"></a><span class="lineno"> 2342</span> </div><div class="line"><a name="l02343"></a><span class="lineno"> 2343</span> </div><div class="line"><a name="l02344"></a><span class="lineno"> 2344</span> <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_screen_triangle3d_f(<span class="keyword">struct</span> BITMAP *bmp, <span class="keywordtype">int</span> type,</div><div class="line"><a name="l02345"></a><span class="lineno"> 2345</span>  <span class="keyword">struct</span> BITMAP *texture,</div><div class="line"><a name="l02346"></a><span class="lineno"> 2346</span>  V3D_f *v1, V3D_f *v2, V3D_f *v3) {</div><div class="line"><a name="l02347"></a><span class="lineno"> 2347</span>  V3D_f *vtx_f[3];</div><div class="line"><a name="l02348"></a><span class="lineno"> 2348</span>  vtx_f[0] = v1;</div><div class="line"><a name="l02349"></a><span class="lineno"> 2349</span>  vtx_f[1] = v2;</div><div class="line"><a name="l02350"></a><span class="lineno"> 2350</span>  vtx_f[2] = v3;</div><div class="line"><a name="l02351"></a><span class="lineno"> 2351</span> </div><div class="line"><a name="l02352"></a><span class="lineno"> 2352</span>  allegro_gl_screen_polygon3d_f(bmp, type, texture, 3, vtx_f);</div><div class="line"><a name="l02353"></a><span class="lineno"> 2353</span> }</div><div class="line"><a name="l02354"></a><span class="lineno"> 2354</span> </div><div class="line"><a name="l02355"></a><span class="lineno"> 2355</span> </div><div class="line"><a name="l02356"></a><span class="lineno"> 2356</span> </div><div class="line"><a name="l02357"></a><span class="lineno"> 2357</span> <span class="keywordtype">void</span> __allegro_gl__glvtable_update_vtable(GFX_VTABLE ** vtable)</div><div class="line"><a name="l02358"></a><span class="lineno"> 2358</span> {</div><div class="line"><a name="l02359"></a><span class="lineno"> 2359</span>  <span class="keywordtype">int</span> maskcolor = (*vtable)->mask_color;</div><div class="line"><a name="l02360"></a><span class="lineno"> 2360</span>  <span class="keywordtype">int</span> depth = (*vtable)->color_depth;</div><div class="line"><a name="l02361"></a><span class="lineno"> 2361</span> </div><div class="line"><a name="l02362"></a><span class="lineno"> 2362</span>  AGL_LOG(2, <span class="stringliteral">"glvtable.c:__allegro_gl__glvtable_update_vtable\n"</span>);</div><div class="line"><a name="l02363"></a><span class="lineno"> 2363</span>  allegro_gl_screen_vtable.color_depth = depth;</div><div class="line"><a name="l02364"></a><span class="lineno"> 2364</span>  <span class="comment">/* makecol_depth is used below instead of the MASK_COLOR_x constants</span></div><div class="line"><a name="l02365"></a><span class="lineno"> 2365</span> <span class="comment"> * because we may have changed the RGB shift values in order to</span></div><div class="line"><a name="l02366"></a><span class="lineno"> 2366</span> <span class="comment"> * use the packed pixels extension</span></div><div class="line"><a name="l02367"></a><span class="lineno"> 2367</span> <span class="comment"> */</span></div><div class="line"><a name="l02368"></a><span class="lineno"> 2368</span>  allegro_gl_screen_vtable.mask_color =</div><div class="line"><a name="l02369"></a><span class="lineno"> 2369</span>  makecol_depth(depth, getr(maskcolor), getg(maskcolor), getb(maskcolor));</div><div class="line"><a name="l02370"></a><span class="lineno"> 2370</span>  </div><div class="line"><a name="l02371"></a><span class="lineno"> 2371</span>  *vtable = &allegro_gl_screen_vtable;</div><div class="line"><a name="l02372"></a><span class="lineno"> 2372</span> </div><div class="line"><a name="l02373"></a><span class="lineno"> 2373</span>  __allegro_gl_driver->screen_masked_blit = screen_masked_blit_standard;</div><div class="line"><a name="l02374"></a><span class="lineno"> 2374</span>  <span class="keywordflow">if</span> (<a class="code" href="group__extensions.html#ga7492f6f6acc608789210560ee63e5436">allegro_gl_extensions_GL</a>.NV_register_combiners) {</div><div class="line"><a name="l02375"></a><span class="lineno"> 2375</span>  __allegro_gl_driver->screen_masked_blit</div><div class="line"><a name="l02376"></a><span class="lineno"> 2376</span>  = screen_masked_blit_nv_register;</div><div class="line"><a name="l02377"></a><span class="lineno"> 2377</span>  }</div><div class="line"><a name="l02378"></a><span class="lineno"> 2378</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (allegro_gl_info.num_texture_units >= 3) {</div><div class="line"><a name="l02379"></a><span class="lineno"> 2379</span>  __allegro_gl_driver->screen_masked_blit =</div><div class="line"><a name="l02380"></a><span class="lineno"> 2380</span>  screen_masked_blit_combine_tex;</div><div class="line"><a name="l02381"></a><span class="lineno"> 2381</span>  }</div><div class="line"><a name="l02382"></a><span class="lineno"> 2382</span> }</div><div class="line"><a name="l02383"></a><span class="lineno"> 2383</span> </div><div class="line"><a name="l02384"></a><span class="lineno"> 2384</span> </div><div class="line"><a name="l02385"></a><span class="lineno"> 2385</span> </div><div class="line"><a name="l02386"></a><span class="lineno"> 2386</span> <span class="comment">/* Saved projection matrix */</span></div><div class="line"><a name="l02387"></a><span class="lineno"> 2387</span> <span class="keyword">static</span> <span class="keywordtype">double</span> allegro_gl_projection_matrix[16];</div><div class="line"><a name="l02388"></a><span class="lineno"> 2388</span> <span class="keyword">static</span> <span class="keywordtype">double</span> allegro_gl_modelview_matrix[16];</div><div class="line"><a name="l02389"></a><span class="lineno"> 2389</span> </div><div class="line"><a name="l02390"></a><span class="lineno"> 2390</span> </div><div class="line"><a name="l02391"></a><span class="lineno"> 2391</span> </div><div class="line"><a name="l02422"></a><span class="lineno"><a class="line" href="group__allegro.html#ga7ea7ffd9b72d0d0722cbf982b729efdb"> 2422</a></span> <span class="keywordtype">void</span> <a class="code" href="group__allegro.html#ga7ea7ffd9b72d0d0722cbf982b729efdb">allegro_gl_set_allegro_mode</a>(<span class="keywordtype">void</span>)</div><div class="line"><a name="l02423"></a><span class="lineno"> 2423</span> {</div><div class="line"><a name="l02424"></a><span class="lineno"> 2424</span>  AGL_LOG(2, <span class="stringliteral">"glvtable.c:allegro_gl_set_allegro_mode\n"</span>);</div><div class="line"><a name="l02425"></a><span class="lineno"> 2425</span> </div><div class="line"><a name="l02426"></a><span class="lineno"> 2426</span>  <span class="comment">/* Save the OpenGL state then set it up */</span></div><div class="line"><a name="l02427"></a><span class="lineno"> 2427</span>  glPushAttrib(GL_ENABLE_BIT | GL_TEXTURE_BIT | GL_TRANSFORM_BIT</div><div class="line"><a name="l02428"></a><span class="lineno"> 2428</span>  | GL_POINT_BIT | GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);</div><div class="line"><a name="l02429"></a><span class="lineno"> 2429</span>  glDisable(GL_DEPTH_TEST);</div><div class="line"><a name="l02430"></a><span class="lineno"> 2430</span>  glDisable(GL_CULL_FACE);</div><div class="line"><a name="l02431"></a><span class="lineno"> 2431</span>  glDisable(GL_FOG);</div><div class="line"><a name="l02432"></a><span class="lineno"> 2432</span>  glDisable(GL_LIGHTING);</div><div class="line"><a name="l02433"></a><span class="lineno"> 2433</span>  glDisable(GL_BLEND);</div><div class="line"><a name="l02434"></a><span class="lineno"> 2434</span>  glDisable(GL_ALPHA_TEST);</div><div class="line"><a name="l02435"></a><span class="lineno"> 2435</span>  glDepthMask(GL_FALSE);</div><div class="line"><a name="l02436"></a><span class="lineno"> 2436</span>  glEnable(GL_TEXTURE_2D);</div><div class="line"><a name="l02437"></a><span class="lineno"> 2437</span>  glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);</div><div class="line"><a name="l02438"></a><span class="lineno"> 2438</span>  glPointSize(1.);</div><div class="line"><a name="l02439"></a><span class="lineno"> 2439</span> </div><div class="line"><a name="l02440"></a><span class="lineno"> 2440</span>  <span class="comment">/* Create pool texture */</span></div><div class="line"><a name="l02441"></a><span class="lineno"> 2441</span>  <span class="keywordflow">if</span> (!__allegro_gl_pool_texture) {</div><div class="line"><a name="l02442"></a><span class="lineno"> 2442</span>  glGenTextures(1, &__allegro_gl_pool_texture);</div><div class="line"><a name="l02443"></a><span class="lineno"> 2443</span>  }</div><div class="line"><a name="l02444"></a><span class="lineno"> 2444</span> </div><div class="line"><a name="l02445"></a><span class="lineno"> 2445</span>  glBindTexture(GL_TEXTURE_2D, __allegro_gl_pool_texture);</div><div class="line"><a name="l02446"></a><span class="lineno"> 2446</span>  <span class="comment">/* Create a texture without defining the data */</span></div><div class="line"><a name="l02447"></a><span class="lineno"> 2447</span>  glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 256, 256, 0,</div><div class="line"><a name="l02448"></a><span class="lineno"> 2448</span>  GL_RGBA, GL_UNSIGNED_BYTE, NULL);</div><div class="line"><a name="l02449"></a><span class="lineno"> 2449</span>  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);</div><div class="line"><a name="l02450"></a><span class="lineno"> 2450</span>  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);</div><div class="line"><a name="l02451"></a><span class="lineno"> 2451</span> </div><div class="line"><a name="l02452"></a><span class="lineno"> 2452</span>  glBindTexture(GL_TEXTURE_2D, 0);</div><div class="line"><a name="l02453"></a><span class="lineno"> 2453</span>  <a class="code" href="group__allegro.html#gabaf6024e9d196da357aad02c5dc7589f">allegro_gl_set_projection</a>();</div><div class="line"><a name="l02454"></a><span class="lineno"> 2454</span> </div><div class="line"><a name="l02455"></a><span class="lineno"> 2455</span>  <span class="comment">/* For some reason, ATI Rage Pro isn't able to draw correctly without a</span></div><div class="line"><a name="l02456"></a><span class="lineno"> 2456</span> <span class="comment"> * texture bound. So we bind a dummy 1x1 texture to work around the issue.</span></div><div class="line"><a name="l02457"></a><span class="lineno"> 2457</span> <span class="comment"> */</span></div><div class="line"><a name="l02458"></a><span class="lineno"> 2458</span>  <span class="keywordflow">if</span> (allegro_gl_info.is_ati_rage_pro) {</div><div class="line"><a name="l02459"></a><span class="lineno"> 2459</span>  <span class="keywordflow">if</span> (!__allegro_gl_dummy_texture) {</div><div class="line"><a name="l02460"></a><span class="lineno"> 2460</span>  GLubyte tex[4] = {255, 255, 255, 255};</div><div class="line"><a name="l02461"></a><span class="lineno"> 2461</span>  glGenTextures(1, &__allegro_gl_dummy_texture);</div><div class="line"><a name="l02462"></a><span class="lineno"> 2462</span>  glBindTexture(GL_TEXTURE_2D, __allegro_gl_dummy_texture);</div><div class="line"><a name="l02463"></a><span class="lineno"> 2463</span>  glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0,</div><div class="line"><a name="l02464"></a><span class="lineno"> 2464</span>  GL_RGBA, GL_UNSIGNED_BYTE, tex);</div><div class="line"><a name="l02465"></a><span class="lineno"> 2465</span>  }</div><div class="line"><a name="l02466"></a><span class="lineno"> 2466</span>  glBindTexture(GL_TEXTURE_2D, __allegro_gl_dummy_texture);</div><div class="line"><a name="l02467"></a><span class="lineno"> 2467</span>  }</div><div class="line"><a name="l02468"></a><span class="lineno"> 2468</span> <span class="preprocessor">#ifdef ALLEGRO_MACOSX</span></div><div class="line"><a name="l02469"></a><span class="lineno"> 2469</span>  <span class="comment">/* MacOSX 10.2.x has a bug: glRasterPos causes a crash (it is used in</span></div><div class="line"><a name="l02470"></a><span class="lineno"> 2470</span> <span class="comment"> *'blit'). This stops it happening.</span></div><div class="line"><a name="l02471"></a><span class="lineno"> 2471</span> <span class="comment"> */</span></div><div class="line"><a name="l02472"></a><span class="lineno"> 2472</span>  glBegin(GL_POINTS);</div><div class="line"><a name="l02473"></a><span class="lineno"> 2473</span>  glEnd();</div><div class="line"><a name="l02474"></a><span class="lineno"> 2474</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l02475"></a><span class="lineno"> 2475</span> }</div><div class="line"><a name="l02476"></a><span class="lineno"> 2476</span> </div><div class="line"><a name="l02477"></a><span class="lineno"> 2477</span> </div><div class="line"><a name="l02478"></a><span class="lineno"> 2478</span> </div><div class="line"><a name="l02491"></a><span class="lineno"><a class="line" href="group__allegro.html#ga00fbbee541046767114bf9746ceb6f8b"> 2491</a></span> <span class="keywordtype">void</span> <a class="code" href="group__allegro.html#ga00fbbee541046767114bf9746ceb6f8b">allegro_gl_unset_allegro_mode</a>(<span class="keywordtype">void</span>)</div><div class="line"><a name="l02492"></a><span class="lineno"> 2492</span> {</div><div class="line"><a name="l02493"></a><span class="lineno"> 2493</span>  AGL_LOG(2, <span class="stringliteral">"glvtable.c:allegro_gl_unset_allegro_mode\n"</span>);</div><div class="line"><a name="l02494"></a><span class="lineno"> 2494</span> </div><div class="line"><a name="l02495"></a><span class="lineno"> 2495</span>  <span class="keywordflow">switch</span>(allegro_gl_display_info.vidmem_policy) {</div><div class="line"><a name="l02496"></a><span class="lineno"> 2496</span>  <span class="keywordflow">case</span> <a class="code" href="group__settings.html#ga5deef983a0f5b2704746d7945c614b7c">AGL_KEEP</a>:</div><div class="line"><a name="l02497"></a><span class="lineno"> 2497</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l02498"></a><span class="lineno"> 2498</span>  <span class="keywordflow">case</span> <a class="code" href="group__settings.html#ga77a6cb708e52f68f893128db6f20bdea">AGL_RELEASE</a>:</div><div class="line"><a name="l02499"></a><span class="lineno"> 2499</span>  <span class="keywordflow">if</span> (__allegro_gl_pool_texture) {</div><div class="line"><a name="l02500"></a><span class="lineno"> 2500</span>  glDeleteTextures(1, &__allegro_gl_pool_texture);</div><div class="line"><a name="l02501"></a><span class="lineno"> 2501</span>  __allegro_gl_pool_texture = 0;</div><div class="line"><a name="l02502"></a><span class="lineno"> 2502</span>  }</div><div class="line"><a name="l02503"></a><span class="lineno"> 2503</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l02504"></a><span class="lineno"> 2504</span>  }</div><div class="line"><a name="l02505"></a><span class="lineno"> 2505</span>  <a class="code" href="group__allegro.html#ga603f8f3719d02816acdf3dbdcaa1f447">allegro_gl_unset_projection</a>();</div><div class="line"><a name="l02506"></a><span class="lineno"> 2506</span>  glPopAttrib();</div><div class="line"><a name="l02507"></a><span class="lineno"> 2507</span> }</div><div class="line"><a name="l02508"></a><span class="lineno"> 2508</span> </div><div class="line"><a name="l02509"></a><span class="lineno"> 2509</span> </div><div class="line"><a name="l02510"></a><span class="lineno"> 2510</span> </div><div class="line"><a name="l02540"></a><span class="lineno"><a class="line" href="group__allegro.html#gabaf6024e9d196da357aad02c5dc7589f"> 2540</a></span> <span class="keywordtype">void</span> <a class="code" href="group__allegro.html#gabaf6024e9d196da357aad02c5dc7589f">allegro_gl_set_projection</a>(<span class="keywordtype">void</span>)</div><div class="line"><a name="l02541"></a><span class="lineno"> 2541</span> {</div><div class="line"><a name="l02542"></a><span class="lineno"> 2542</span>  GLint v[4];</div><div class="line"><a name="l02543"></a><span class="lineno"> 2543</span>  AGL_LOG(2, <span class="stringliteral">"glvtable.c:allegro_gl_set_projection\n"</span>);</div><div class="line"><a name="l02544"></a><span class="lineno"> 2544</span>  </div><div class="line"><a name="l02545"></a><span class="lineno"> 2545</span>  <span class="comment">/* Setup OpenGL matrices */</span></div><div class="line"><a name="l02546"></a><span class="lineno"> 2546</span>  glGetIntegerv(GL_VIEWPORT, &v[0]);</div><div class="line"><a name="l02547"></a><span class="lineno"> 2547</span>  glMatrixMode(GL_MODELVIEW);</div><div class="line"><a name="l02548"></a><span class="lineno"> 2548</span>  glGetDoublev(GL_MODELVIEW_MATRIX, allegro_gl_modelview_matrix);</div><div class="line"><a name="l02549"></a><span class="lineno"> 2549</span>  glLoadIdentity();</div><div class="line"><a name="l02550"></a><span class="lineno"> 2550</span>  glMatrixMode(GL_PROJECTION);</div><div class="line"><a name="l02551"></a><span class="lineno"> 2551</span>  glGetDoublev(GL_PROJECTION_MATRIX, allegro_gl_projection_matrix);</div><div class="line"><a name="l02552"></a><span class="lineno"> 2552</span>  glLoadIdentity();</div><div class="line"><a name="l02553"></a><span class="lineno"> 2553</span>  gluOrtho2D(v[0] - 0.325, v[0] + v[2] - 0.325, v[1] + v[3] - 0.325, v[1] - 0.325);</div><div class="line"><a name="l02554"></a><span class="lineno"> 2554</span> }</div><div class="line"><a name="l02555"></a><span class="lineno"> 2555</span> </div><div class="line"><a name="l02556"></a><span class="lineno"> 2556</span> </div><div class="line"><a name="l02557"></a><span class="lineno"> 2557</span> </div><div class="line"><a name="l02567"></a><span class="lineno"><a class="line" href="group__allegro.html#ga603f8f3719d02816acdf3dbdcaa1f447"> 2567</a></span> <span class="keywordtype">void</span> <a class="code" href="group__allegro.html#ga603f8f3719d02816acdf3dbdcaa1f447">allegro_gl_unset_projection</a>(<span class="keywordtype">void</span>)</div><div class="line"><a name="l02568"></a><span class="lineno"> 2568</span> {</div><div class="line"><a name="l02569"></a><span class="lineno"> 2569</span>  AGL_LOG(2, <span class="stringliteral">"glvtable.c:allegro_gl_unset_projection\n"</span>);</div><div class="line"><a name="l02570"></a><span class="lineno"> 2570</span>  glMatrixMode(GL_PROJECTION);</div><div class="line"><a name="l02571"></a><span class="lineno"> 2571</span>  glLoadMatrixd(allegro_gl_projection_matrix);</div><div class="line"><a name="l02572"></a><span class="lineno"> 2572</span>  glMatrixMode(GL_MODELVIEW);</div><div class="line"><a name="l02573"></a><span class="lineno"> 2573</span>  glLoadMatrixd(allegro_gl_modelview_matrix);</div><div class="line"><a name="l02574"></a><span class="lineno"> 2574</span> }</div><div class="line"><a name="l02575"></a><span class="lineno"> 2575</span> </div><div class="line"><a name="l02576"></a><span class="lineno"> 2576</span> </div><div class="line"><a name="l02577"></a><span class="lineno"> 2577</span> </div><div class="line"><a name="l02578"></a><span class="lineno"> 2578</span> <span class="keywordtype">void</span> allegro_gl_memory_blit_between_formats(<span class="keyword">struct</span> BITMAP *src,</div><div class="line"><a name="l02579"></a><span class="lineno"> 2579</span>  <span class="keyword">struct</span> BITMAP *dest, <span class="keywordtype">int</span> source_x, <span class="keywordtype">int</span> source_y, <span class="keywordtype">int</span> dest_x, <span class="keywordtype">int</span> dest_y,</div><div class="line"><a name="l02580"></a><span class="lineno"> 2580</span>  <span class="keywordtype">int</span> width, <span class="keywordtype">int</span> height)</div><div class="line"><a name="l02581"></a><span class="lineno"> 2581</span> {</div><div class="line"><a name="l02582"></a><span class="lineno"> 2582</span>  AGL_LOG(2, <span class="stringliteral">"AGL::blit_between_formats\n"</span>);</div><div class="line"><a name="l02583"></a><span class="lineno"> 2583</span> </div><div class="line"><a name="l02584"></a><span class="lineno"> 2584</span>  <span class="comment">/* screen -> memory */</span></div><div class="line"><a name="l02585"></a><span class="lineno"> 2585</span>  <span class="keywordflow">if</span> (is_screen_bitmap(src)) {</div><div class="line"><a name="l02586"></a><span class="lineno"> 2586</span>  allegro_gl_screen_blit_to_memory(src, dest, source_x, source_y,</div><div class="line"><a name="l02587"></a><span class="lineno"> 2587</span>  dest_x, dest_y, width, height);</div><div class="line"><a name="l02588"></a><span class="lineno"> 2588</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l02589"></a><span class="lineno"> 2589</span>  }</div><div class="line"><a name="l02590"></a><span class="lineno"> 2590</span> </div><div class="line"><a name="l02591"></a><span class="lineno"> 2591</span>  <span class="comment">/* video -> memory */</span></div><div class="line"><a name="l02592"></a><span class="lineno"> 2592</span>  <span class="keywordflow">if</span> (is_video_bitmap(src)) {</div><div class="line"><a name="l02593"></a><span class="lineno"> 2593</span>  allegro_gl_video_blit_to_memory(src, dest, source_x, source_y,</div><div class="line"><a name="l02594"></a><span class="lineno"> 2594</span>  dest_x, dest_y, width, height);</div><div class="line"><a name="l02595"></a><span class="lineno"> 2595</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l02596"></a><span class="lineno"> 2596</span>  }</div><div class="line"><a name="l02597"></a><span class="lineno"> 2597</span>  </div><div class="line"><a name="l02598"></a><span class="lineno"> 2598</span>  <span class="comment">/* memory -> screen */</span></div><div class="line"><a name="l02599"></a><span class="lineno"> 2599</span>  <span class="keywordflow">if</span> (is_screen_bitmap(dest)) {</div><div class="line"><a name="l02600"></a><span class="lineno"> 2600</span>  allegro_gl_screen_blit_from_memory(src, dest, source_x, source_y,</div><div class="line"><a name="l02601"></a><span class="lineno"> 2601</span>  dest_x, dest_y, width, height);</div><div class="line"><a name="l02602"></a><span class="lineno"> 2602</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l02603"></a><span class="lineno"> 2603</span>  }</div><div class="line"><a name="l02604"></a><span class="lineno"> 2604</span> </div><div class="line"><a name="l02605"></a><span class="lineno"> 2605</span>  <span class="comment">/* memory -> video */</span></div><div class="line"><a name="l02606"></a><span class="lineno"> 2606</span>  <span class="keywordflow">if</span> (is_video_bitmap(dest)) {</div><div class="line"><a name="l02607"></a><span class="lineno"> 2607</span>  allegro_gl_video_blit_from_memory(src, dest, source_x, source_y,</div><div class="line"><a name="l02608"></a><span class="lineno"> 2608</span>  dest_x, dest_y, width, height);</div><div class="line"><a name="l02609"></a><span class="lineno"> 2609</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l02610"></a><span class="lineno"> 2610</span>  }</div><div class="line"><a name="l02611"></a><span class="lineno"> 2611</span> </div><div class="line"><a name="l02612"></a><span class="lineno"> 2612</span>  <span class="keywordflow">switch</span>(bitmap_color_depth(dest)) {</div><div class="line"><a name="l02613"></a><span class="lineno"> 2613</span> <span class="preprocessor"> #ifdef ALLEGRO_COLOR8</span></div><div class="line"><a name="l02614"></a><span class="lineno"> 2614</span>  <span class="keywordflow">case</span> 8:</div><div class="line"><a name="l02615"></a><span class="lineno"> 2615</span>  __blit_between_formats8(src, dest, source_x, source_y,</div><div class="line"><a name="l02616"></a><span class="lineno"> 2616</span>  dest_x, dest_y, width, height);</div><div class="line"><a name="l02617"></a><span class="lineno"> 2617</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l02618"></a><span class="lineno"> 2618</span> <span class="preprocessor"> #endif</span></div><div class="line"><a name="l02619"></a><span class="lineno"> 2619</span> <span class="preprocessor"> #ifdef ALLEGRO_COLOR16</span></div><div class="line"><a name="l02620"></a><span class="lineno"> 2620</span>  <span class="keywordflow">case</span> 15:</div><div class="line"><a name="l02621"></a><span class="lineno"> 2621</span>  __blit_between_formats15(src, dest, source_x, source_y,</div><div class="line"><a name="l02622"></a><span class="lineno"> 2622</span>  dest_x, dest_y, width, height);</div><div class="line"><a name="l02623"></a><span class="lineno"> 2623</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l02624"></a><span class="lineno"> 2624</span>  <span class="keywordflow">case</span> 16:</div><div class="line"><a name="l02625"></a><span class="lineno"> 2625</span>  __blit_between_formats16(src, dest, source_x, source_y,</div><div class="line"><a name="l02626"></a><span class="lineno"> 2626</span>  dest_x, dest_y, width, height);</div><div class="line"><a name="l02627"></a><span class="lineno"> 2627</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l02628"></a><span class="lineno"> 2628</span> <span class="preprocessor"> #endif</span></div><div class="line"><a name="l02629"></a><span class="lineno"> 2629</span> <span class="preprocessor"> #ifdef ALLEGRO_COLOR24</span></div><div class="line"><a name="l02630"></a><span class="lineno"> 2630</span>  <span class="keywordflow">case</span> 24:</div><div class="line"><a name="l02631"></a><span class="lineno"> 2631</span>  __blit_between_formats24(src, dest, source_x, source_y,</div><div class="line"><a name="l02632"></a><span class="lineno"> 2632</span>  dest_x, dest_y, width, height);</div><div class="line"><a name="l02633"></a><span class="lineno"> 2633</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l02634"></a><span class="lineno"> 2634</span> <span class="preprocessor"> #endif</span></div><div class="line"><a name="l02635"></a><span class="lineno"> 2635</span> <span class="preprocessor"> #ifdef ALLEGRO_COLOR32</span></div><div class="line"><a name="l02636"></a><span class="lineno"> 2636</span>  <span class="keywordflow">case</span> 32:</div><div class="line"><a name="l02637"></a><span class="lineno"> 2637</span>  __blit_between_formats32(src, dest, source_x, source_y,</div><div class="line"><a name="l02638"></a><span class="lineno"> 2638</span>  dest_x, dest_y, width, height);</div><div class="line"><a name="l02639"></a><span class="lineno"> 2639</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l02640"></a><span class="lineno"> 2640</span> <span class="preprocessor"> #endif</span></div><div class="line"><a name="l02641"></a><span class="lineno"> 2641</span>  <span class="keywordflow">default</span>:</div><div class="line"><a name="l02642"></a><span class="lineno"> 2642</span>  TRACE(<span class="stringliteral">"--== ERROR ==-- AGL::blit_between_formats : %i -> %i bpp\n"</span>,</div><div class="line"><a name="l02643"></a><span class="lineno"> 2643</span>  bitmap_color_depth(src), bitmap_color_depth(dest));</div><div class="line"><a name="l02644"></a><span class="lineno"> 2644</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l02645"></a><span class="lineno"> 2645</span>  }</div><div class="line"><a name="l02646"></a><span class="lineno"> 2646</span> }</div><div class="line"><a name="l02647"></a><span class="lineno"> 2647</span> </div><div class="line"><a name="l02648"></a><span class="lineno"> 2648</span> </div><div class="line"><a name="l02649"></a><span class="lineno"> 2649</span> </div><div class="line"><a name="l02650"></a><span class="lineno"> 2650</span> <span class="keyword">static</span> <span class="keywordtype">void</span> dummy_unwrite_bank(<span class="keywordtype">void</span>)</div><div class="line"><a name="l02651"></a><span class="lineno"> 2651</span> {</div><div class="line"><a name="l02652"></a><span class="lineno"> 2652</span> }</div><div class="line"><a name="l02653"></a><span class="lineno"> 2653</span> </div><div class="line"><a name="l02654"></a><span class="lineno"> 2654</span> </div><div class="line"><a name="l02655"></a><span class="lineno"> 2655</span> </div><div class="line"><a name="l02656"></a><span class="lineno"> 2656</span> <span class="keyword">static</span> GFX_VTABLE allegro_gl_screen_vtable = {</div><div class="line"><a name="l02657"></a><span class="lineno"> 2657</span>  0,</div><div class="line"><a name="l02658"></a><span class="lineno"> 2658</span>  0,</div><div class="line"><a name="l02659"></a><span class="lineno"> 2659</span>  dummy_unwrite_bank, <span class="comment">//void *unwrite_bank;</span></div><div class="line"><a name="l02660"></a><span class="lineno"> 2660</span>  NULL, <span class="comment">//AL_METHOD(void, set_clip, (struct BITMAP *bmp));</span></div><div class="line"><a name="l02661"></a><span class="lineno"> 2661</span>  <a class="code" href="group__glvtable.html#ga702812e50246c61eb9f01fd8aba69325">allegro_gl_screen_acquire</a>,</div><div class="line"><a name="l02662"></a><span class="lineno"> 2662</span>  <a class="code" href="group__glvtable.html#ga6c2b0685587a0feafcb194a9a67d6aa9">allegro_gl_screen_release</a>,</div><div class="line"><a name="l02663"></a><span class="lineno"> 2663</span>  NULL, <span class="comment">//AL_METHOD(struct BITMAP *, create_sub_bitmap, (struct BITMAP *parent, int x, int y, int width, int height));</span></div><div class="line"><a name="l02664"></a><span class="lineno"> 2664</span>  NULL, <span class="comment">//AL_METHOD(void, created_sub_bitmap, (struct BITMAP *bmp, struct BITMAP *parent));</span></div><div class="line"><a name="l02665"></a><span class="lineno"> 2665</span>  allegro_gl_screen_getpixel,</div><div class="line"><a name="l02666"></a><span class="lineno"> 2666</span>  allegro_gl_screen_putpixel,</div><div class="line"><a name="l02667"></a><span class="lineno"> 2667</span>  allegro_gl_screen_vline,</div><div class="line"><a name="l02668"></a><span class="lineno"> 2668</span>  allegro_gl_screen_hline,</div><div class="line"><a name="l02669"></a><span class="lineno"> 2669</span>  allegro_gl_screen_hline,</div><div class="line"><a name="l02670"></a><span class="lineno"> 2670</span>  allegro_gl_screen_line,</div><div class="line"><a name="l02671"></a><span class="lineno"> 2671</span>  allegro_gl_screen_line,</div><div class="line"><a name="l02672"></a><span class="lineno"> 2672</span>  allegro_gl_screen_rectfill,</div><div class="line"><a name="l02673"></a><span class="lineno"> 2673</span>  allegro_gl_screen_triangle,</div><div class="line"><a name="l02674"></a><span class="lineno"> 2674</span>  allegro_gl_screen_draw_sprite,</div><div class="line"><a name="l02675"></a><span class="lineno"> 2675</span>  allegro_gl_screen_draw_256_sprite,</div><div class="line"><a name="l02676"></a><span class="lineno"> 2676</span>  allegro_gl_screen_draw_sprite_v_flip,</div><div class="line"><a name="l02677"></a><span class="lineno"> 2677</span>  allegro_gl_screen_draw_sprite_h_flip,</div><div class="line"><a name="l02678"></a><span class="lineno"> 2678</span>  allegro_gl_screen_draw_sprite_vh_flip,</div><div class="line"><a name="l02679"></a><span class="lineno"> 2679</span>  allegro_gl_screen_draw_trans_rgba_sprite,</div><div class="line"><a name="l02680"></a><span class="lineno"> 2680</span>  allegro_gl_screen_draw_trans_rgba_sprite,</div><div class="line"><a name="l02681"></a><span class="lineno"> 2681</span>  NULL, <span class="comment">//AL_METHOD(void, draw_lit_sprite, (struct BITMAP *bmp, struct BITMAP *sprite, int x, int y, int color));</span></div><div class="line"><a name="l02682"></a><span class="lineno"> 2682</span>  allegro_gl_screen_draw_rle_sprite,</div><div class="line"><a name="l02683"></a><span class="lineno"> 2683</span>  allegro_gl_screen_draw_trans_rgba_rle_sprite,</div><div class="line"><a name="l02684"></a><span class="lineno"> 2684</span>  allegro_gl_screen_draw_trans_rgba_rle_sprite,</div><div class="line"><a name="l02685"></a><span class="lineno"> 2685</span>  NULL, <span class="comment">//AL_METHOD(void, draw_lit_rle_sprite, (struct BITMAP *bmp, struct RLE_SPRITE *sprite, int x, int y, int color));</span></div><div class="line"><a name="l02686"></a><span class="lineno"> 2686</span>  allegro_gl_screen_draw_character,</div><div class="line"><a name="l02687"></a><span class="lineno"> 2687</span>  allegro_gl_screen_draw_glyph,</div><div class="line"><a name="l02688"></a><span class="lineno"> 2688</span>  allegro_gl_screen_blit_from_memory,</div><div class="line"><a name="l02689"></a><span class="lineno"> 2689</span>  allegro_gl_screen_blit_to_memory,</div><div class="line"><a name="l02690"></a><span class="lineno"> 2690</span>  NULL, <span class="comment">//AL_METHOD(void, blit_from_system, (struct BITMAP *source, struct BITMAP *dest, int source_x, int source_y, int dest_x, int dest_y, int width, int height));</span></div><div class="line"><a name="l02691"></a><span class="lineno"> 2691</span>  NULL, <span class="comment">//AL_METHOD(void, blit_to_system, (struct BITMAP *source, struct BITMAP *dest, int source_x, int source_y, int dest_x, int dest_y, int width, int height));</span></div><div class="line"><a name="l02692"></a><span class="lineno"> 2692</span>  allegro_gl_screen_blit_to_self,</div><div class="line"><a name="l02693"></a><span class="lineno"> 2693</span>  allegro_gl_screen_blit_to_self, <span class="comment">/* ..._forward */</span></div><div class="line"><a name="l02694"></a><span class="lineno"> 2694</span>  allegro_gl_screen_blit_to_self, <span class="comment">/* ..._backward */</span></div><div class="line"><a name="l02695"></a><span class="lineno"> 2695</span>  allegro_gl_memory_blit_between_formats,</div><div class="line"><a name="l02696"></a><span class="lineno"> 2696</span>  allegro_gl_screen_masked_blit,</div><div class="line"><a name="l02697"></a><span class="lineno"> 2697</span>  allegro_gl_screen_clear_to_color,</div><div class="line"><a name="l02698"></a><span class="lineno"> 2698</span>  allegro_gl_screen_pivot_scaled_sprite_flip,</div><div class="line"><a name="l02699"></a><span class="lineno"> 2699</span>  NULL, <span class="comment">//AL_METHOD(void, do_stretch_blit, (struct BITMAP *source, struct BITMAP *dest, int source_x, int source_y, int source_width, int source_height, int dest_x, int dest_y, int dest_width, int dest_height, int masked));</span></div><div class="line"><a name="l02700"></a><span class="lineno"> 2700</span>  NULL, <span class="comment">//AL_METHOD(void, draw_gouraud_sprite, (struct BITMAP *bmp, struct BITMAP *sprite, int x, int y, int c1, int c2, int c3, int c4));</span></div><div class="line"><a name="l02701"></a><span class="lineno"> 2701</span>  NULL, <span class="comment">//AL_METHOD(void, draw_sprite_end, (void));</span></div><div class="line"><a name="l02702"></a><span class="lineno"> 2702</span>  NULL, <span class="comment">//AL_METHOD(void, blit_end, (void));</span></div><div class="line"><a name="l02703"></a><span class="lineno"> 2703</span>  allegro_gl_screen_polygon,</div><div class="line"><a name="l02704"></a><span class="lineno"> 2704</span>  allegro_gl_screen_rect,</div><div class="line"><a name="l02705"></a><span class="lineno"> 2705</span>  _soft_circle, <span class="comment">//AL_METHOD(void, circle, (struct BITMAP *bmp, int x, int y, int radius, int color));</span></div><div class="line"><a name="l02706"></a><span class="lineno"> 2706</span>  _soft_circlefill, <span class="comment">//AL_METHOD(void, circlefill, (struct BITMAP *bmp, int x, int y, int radius, int color));</span></div><div class="line"><a name="l02707"></a><span class="lineno"> 2707</span>  _soft_ellipse, <span class="comment">//AL_METHOD(void, ellipse, (struct BITMAP *bmp, int x, int y, int rx, int ry, int color));</span></div><div class="line"><a name="l02708"></a><span class="lineno"> 2708</span>  _soft_ellipsefill, <span class="comment">//AL_METHOD(void, ellipsefill, (struct BITMAP *bmp, int x, int y, int rx, int ry, int color));</span></div><div class="line"><a name="l02709"></a><span class="lineno"> 2709</span>  _soft_arc, <span class="comment">//AL_METHOD(void, arc, (struct BITMAP *bmp, int x, int y, fixed ang1, fixed ang2, int r, int color));</span></div><div class="line"><a name="l02710"></a><span class="lineno"> 2710</span>  _soft_spline, <span class="comment">//AL_METHOD(void, spline, (struct BITMAP *bmp, AL_CONST int points[8], int color));</span></div><div class="line"><a name="l02711"></a><span class="lineno"> 2711</span>  _soft_floodfill, <span class="comment">//AL_METHOD(void, floodfill, (struct BITMAP *bmp, int x, int y, int color));</span></div><div class="line"><a name="l02712"></a><span class="lineno"> 2712</span>  allegro_gl_screen_polygon3d,</div><div class="line"><a name="l02713"></a><span class="lineno"> 2713</span>  allegro_gl_screen_polygon3d_f,</div><div class="line"><a name="l02714"></a><span class="lineno"> 2714</span>  allegro_gl_screen_triangle3d,</div><div class="line"><a name="l02715"></a><span class="lineno"> 2715</span>  allegro_gl_screen_triangle3d_f,</div><div class="line"><a name="l02716"></a><span class="lineno"> 2716</span>  allegro_gl_screen_quad3d,</div><div class="line"><a name="l02717"></a><span class="lineno"> 2717</span>  allegro_gl_screen_quad3d_f,</div><div class="line"><a name="l02718"></a><span class="lineno"> 2718</span>  allegro_gl_screen_draw_sprite_ex</div><div class="line"><a name="l02719"></a><span class="lineno"> 2719</span> };</div><div class="line"><a name="l02720"></a><span class="lineno"> 2720</span> </div><div class="ttc" id="group__settings_html_ga5deef983a0f5b2704746d7945c614b7c"><div class="ttname"><a href="group__settings.html#ga5deef983a0f5b2704746d7945c614b7c">AGL_KEEP</a></div><div class="ttdeci">#define AGL_KEEP</div><div class="ttdoc">Keep internal texture in video memory. </div><div class="ttdef"><b>Definition:</b> <a href="alleggl_8h_source.html#l00399">alleggl.h:399</a></div></div>
<div class="ttc" id="group__allegro_html_ga603f8f3719d02816acdf3dbdcaa1f447"><div class="ttname"><a href="group__allegro.html#ga603f8f3719d02816acdf3dbdcaa1f447">allegro_gl_unset_projection</a></div><div class="ttdeci">void allegro_gl_unset_projection(void)</div><div class="ttdoc">Restores previously saved projection. </div><div class="ttdef"><b>Definition:</b> <a href="glvtable_8c_source.html#l02567">glvtable.c:2567</a></div></div>
<div class="ttc" id="group__texture_html_gaba184d573c65f33b35d1d57936607d08"><div class="ttname"><a href="group__texture.html#gaba184d573c65f33b35d1d57936607d08">AGL_TEXTURE_MASKED</a></div><div class="ttdeci">#define AGL_TEXTURE_MASKED</div><div class="ttdoc">Generate an alpha channel for this texture, based on the Allegro mask color. </div><div class="ttdef"><b>Definition:</b> <a href="alleggl_8h_source.html#l00537">alleggl.h:537</a></div></div>
<div class="ttc" id="group__allegro_html_ga00fbbee541046767114bf9746ceb6f8b"><div class="ttname"><a href="group__allegro.html#ga00fbbee541046767114bf9746ceb6f8b">allegro_gl_unset_allegro_mode</a></div><div class="ttdeci">void allegro_gl_unset_allegro_mode(void)</div><div class="ttdoc">Restores previous OpenGL settings. </div><div class="ttdef"><b>Definition:</b> <a href="glvtable_8c_source.html#l02491">glvtable.c:2491</a></div></div>
<div class="ttc" id="group__glvtable_html_ga702812e50246c61eb9f01fd8aba69325"><div class="ttname"><a href="group__glvtable.html#ga702812e50246c61eb9f01fd8aba69325">allegro_gl_screen_acquire</a></div><div class="ttdeci">static void allegro_gl_screen_acquire(struct BITMAP *bmp)</div><div class="ttdoc">acquire_bitmap(screen) overload. </div><div class="ttdef"><b>Definition:</b> <a href="glvtable_8c_source.html#l00160">glvtable.c:160</a></div></div>
<div class="ttc" id="group__allegro_html_gabaf6024e9d196da357aad02c5dc7589f"><div class="ttname"><a href="group__allegro.html#gabaf6024e9d196da357aad02c5dc7589f">allegro_gl_set_projection</a></div><div class="ttdeci">void allegro_gl_set_projection(void)</div><div class="ttdoc">Prepares for Allegro drawing to the screen. </div><div class="ttdef"><b>Definition:</b> <a href="glvtable_8c_source.html#l02540">glvtable.c:2540</a></div></div>
<div class="ttc" id="group__extensions_html_ga7492f6f6acc608789210560ee63e5436"><div class="ttname"><a href="group__extensions.html#ga7492f6f6acc608789210560ee63e5436">allegro_gl_extensions_GL</a></div><div class="ttdeci">struct AGL_EXTENSION_LIST_GL allegro_gl_extensions_GL</div><div class="ttdoc">List of OpenGL extensions supported by AllegroGL. </div><div class="ttdef"><b>Definition:</b> <a href="glext_8c_source.html#l00055">glext.c:55</a></div></div>
<div class="ttc" id="alleggl_8h_html"><div class="ttname"><a href="alleggl_8h.html">alleggl.h</a></div><div class="ttdoc">Main header file for AllegroGL. </div></div>
<div class="ttc" id="group__allegro_html_ga7ea7ffd9b72d0d0722cbf982b729efdb"><div class="ttname"><a href="group__allegro.html#ga7ea7ffd9b72d0d0722cbf982b729efdb">allegro_gl_set_allegro_mode</a></div><div class="ttdeci">void allegro_gl_set_allegro_mode(void)</div><div class="ttdoc">Prepares for Allegro drawing to the screen. </div><div class="ttdef"><b>Definition:</b> <a href="glvtable_8c_source.html#l02422">glvtable.c:2422</a></div></div>
<div class="ttc" id="group__texture_html_gae071354f76bc28e1bafbd90bdecbc0c9"><div class="ttname"><a href="group__texture.html#gae071354f76bc28e1bafbd90bdecbc0c9">allegro_gl_make_texture</a></div><div class="ttdeci">GLuint allegro_gl_make_texture(BITMAP *bmp)</div><div class="ttdoc">Uploads an Allegro BITMAP to the GL driver as a texture. </div><div class="ttdef"><b>Definition:</b> <a href="texture_8c_source.html#l01383">texture.c:1383</a></div></div>
<div class="ttc" id="group__texture_html_ga8cc859eadf1610b424cd9188e716f432"><div class="ttname"><a href="group__texture.html#ga8cc859eadf1610b424cd9188e716f432">AGL_TEXTURE_HAS_ALPHA</a></div><div class="ttdeci">#define AGL_TEXTURE_HAS_ALPHA</div><div class="ttdoc">Tell AllegroGL that the bitmap had an alpha channel, so it should be preserved when generating the te...</div><div class="ttdef"><b>Definition:</b> <a href="alleggl_8h_source.html#l00526">alleggl.h:526</a></div></div>
<div class="ttc" id="group__settings_html_ga77a6cb708e52f68f893128db6f20bdea"><div class="ttname"><a href="group__settings.html#ga77a6cb708e52f68f893128db6f20bdea">AGL_RELEASE</a></div><div class="ttdeci">#define AGL_RELEASE</div><div class="ttdoc">Release video memory occupied by internal texture. </div><div class="ttdef"><b>Definition:</b> <a href="alleggl_8h_source.html#l00400">alleggl.h:400</a></div></div>
<div class="ttc" id="group__glvtable_html_ga6c2b0685587a0feafcb194a9a67d6aa9"><div class="ttname"><a href="group__glvtable.html#ga6c2b0685587a0feafcb194a9a67d6aa9">allegro_gl_screen_release</a></div><div class="ttdeci">static void allegro_gl_screen_release(struct BITMAP *bmp)</div><div class="ttdoc">release_bitmap(screen) overload. </div><div class="ttdef"><b>Definition:</b> <a href="glvtable_8c_source.html#l00170">glvtable.c:170</a></div></div>
</div><!-- fragment --></div><!-- contents -->
<!-- start footer part -->
<hr class="footer"/><address class="footer"><small>
Generated by  <a href="http://www.doxygen.org/index.html">
<img class="footer" src="doxygen.png" alt="doxygen"/>
</a> 1.8.11
</small></address>
</body>
</html>
|
