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
76
77
78
79
80
81
82
|
<!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: texture.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">texture.c</div> </div>
</div><!--header-->
<div class="contents">
<a href="texture_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 "<a class="code" href="alleggl_8h.html">alleggl.h</a>"</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#include "allglint.h"</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> </div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include <allegro/internal/aintern.h></span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> </div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#ifdef ALLEGRO_MACOSX</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include <OpenGL/glu.h></span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#include <GL/glu.h></span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> </div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="keyword">static</span> GLint allegro_gl_opengl_internal_texture_format = -1;</div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="keyword">static</span> <span class="keywordtype">int</span> allegro_gl_use_mipmapping_for_textures = 0;</div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="keywordtype">int</span> __allegro_gl_use_alpha = FALSE;</div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="keywordtype">int</span> __allegro_gl_flip_texture = TRUE;</div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> GLint __allegro_gl_texture_read_format[5];</div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> GLint __allegro_gl_texture_components[5];</div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#define PREFIX_I "agl-tex INFO: "</span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#define PREFIX_W "agl-tex WARNING: "</span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#define PREFIX_E "agl-tex ERROR: "</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> </div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="keywordtype">char</span> <span class="keyword">const</span> *__allegro_gl_get_format_description(GLint format)</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> {</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="keyword">static</span> <span class="keywordtype">char</span> str[256];</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="preprocessor">#define F(s) case s: return #s</span></div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="keywordflow">switch</span> (format) {</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  F(GL_ALPHA);</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  F(GL_ALPHA4);</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  F(GL_ALPHA8);</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  F(GL_ALPHA12);</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  F(GL_ALPHA16);</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  F(GL_ALPHA16F_ARB);</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  F(GL_ALPHA32F_ARB);</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  F(GL_INTENSITY);</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  F(GL_INTENSITY4);</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  F(GL_INTENSITY8);</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  F(GL_INTENSITY12);</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  F(GL_INTENSITY16);</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  F(GL_INTENSITY16F_ARB);</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  F(GL_INTENSITY32F_ARB);</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  F(GL_LUMINANCE);</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  F(GL_LUMINANCE4);</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  F(GL_LUMINANCE8);</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  F(GL_LUMINANCE12);</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  F(GL_LUMINANCE16);</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  F(GL_LUMINANCE16F_ARB);</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  F(GL_LUMINANCE32F_ARB);</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  F(GL_LUMINANCE_ALPHA);</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  F(GL_LUMINANCE4_ALPHA4);</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  F(GL_LUMINANCE12_ALPHA4);</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  F(GL_LUMINANCE8_ALPHA8);</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  F(GL_LUMINANCE6_ALPHA2);</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  F(GL_LUMINANCE12_ALPHA12);</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  F(GL_LUMINANCE16_ALPHA16);</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  F(GL_LUMINANCE_ALPHA16F_ARB);</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  F(GL_LUMINANCE_ALPHA32F_ARB);</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  F(GL_RGB);</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  F(GL_R3_G3_B2);</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  F(GL_RGB4);</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  F(GL_RGB5);</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  F(GL_RGB8);</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  F(GL_RGB10);</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  F(GL_RGB12);</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  F(GL_RGB16);</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  F(GL_RGB16F_ARB);</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  F(GL_RGB32F_ARB);</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  F(GL_RGBA);</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  F(GL_RGBA2);</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  F(GL_RGBA4);</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  F(GL_RGB5_A1);</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  F(GL_RGBA8);</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  F(GL_RGB10_A2);</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  F(GL_RGBA12);</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  F(GL_RGBA16);</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  F(GL_RGBA16F_ARB);</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  F(GL_RGBA32F_ARB);</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  }</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  uszprintf(str, <span class="keyword">sizeof</span> str, <span class="stringliteral">"%x"</span>, format);</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="keywordflow">return</span> str;</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span> <span class="preprocessor">#undef F</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> </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> </div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span> <span class="comment">/* int __allegro_gl_get_num_channels(GLenum format) */</span></div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span> <span class="keywordtype">int</span> __allegro_gl_get_num_channels(GLenum format) {</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  </div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="keywordflow">switch</span> (format) {</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="keywordflow">case</span> 1:</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="keywordflow">case</span> GL_ALPHA:</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keywordflow">case</span> GL_ALPHA4:</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keywordflow">case</span> GL_ALPHA8:</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class="keywordflow">case</span> GL_ALPHA12:</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="keywordflow">case</span> GL_ALPHA16:</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keywordflow">case</span> GL_ALPHA16F_ARB:</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="keywordflow">case</span> GL_ALPHA32F_ARB:</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keywordflow">case</span> GL_INTENSITY:</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="keywordflow">case</span> GL_INTENSITY4:</div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="keywordflow">case</span> GL_INTENSITY8:</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="keywordflow">case</span> GL_INTENSITY12:</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="keywordflow">case</span> GL_INTENSITY16:</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="keywordflow">case</span> GL_INTENSITY16F_ARB:</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="keywordflow">case</span> GL_INTENSITY32F_ARB:</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keywordflow">case</span> GL_LUMINANCE:</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="keywordflow">case</span> GL_LUMINANCE4:</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="keywordflow">case</span> GL_LUMINANCE8:</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="keywordflow">case</span> GL_LUMINANCE12:</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="keywordflow">case</span> GL_LUMINANCE16:</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="keywordflow">case</span> GL_LUMINANCE16F_ARB:</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="keywordflow">case</span> GL_LUMINANCE32F_ARB:</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="keywordflow">return</span> 1;</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="keywordflow">case</span> 2:</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="keywordflow">case</span> GL_LUMINANCE_ALPHA:</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="keywordflow">case</span> GL_LUMINANCE4_ALPHA4:</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="keywordflow">case</span> GL_LUMINANCE12_ALPHA4:</div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="keywordflow">case</span> GL_LUMINANCE8_ALPHA8:</div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <span class="keywordflow">case</span> GL_LUMINANCE6_ALPHA2:</div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="keywordflow">case</span> GL_LUMINANCE12_ALPHA12:</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="keywordflow">case</span> GL_LUMINANCE16_ALPHA16:</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="keywordflow">case</span> GL_LUMINANCE_ALPHA16F_ARB:</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="keywordflow">case</span> GL_LUMINANCE_ALPHA32F_ARB:</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keywordflow">return</span> 2;</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="keywordflow">case</span> 3:</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="keywordflow">case</span> GL_RGB:</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="keywordflow">case</span> GL_R3_G3_B2:</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="keywordflow">case</span> GL_RGB4:</div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="keywordflow">case</span> GL_RGB5:</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="keywordflow">case</span> GL_RGB8:</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="keywordflow">case</span> GL_RGB10:</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="keywordflow">case</span> GL_RGB12:</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="keywordflow">case</span> GL_RGB16:</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="keywordflow">case</span> GL_RGB16F_ARB:</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="keywordflow">case</span> GL_RGB32F_ARB:</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="keywordflow">return</span> 3;</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="keywordflow">case</span> 4:</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="keywordflow">case</span> GL_RGBA:</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="keywordflow">case</span> GL_RGBA2:</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="keywordflow">case</span> GL_RGBA4:</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keywordflow">case</span> GL_RGB5_A1:</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <span class="keywordflow">case</span> GL_RGBA8:</div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <span class="keywordflow">case</span> GL_RGB10_A2:</div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="keywordflow">case</span> GL_RGBA12:</div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="keywordflow">case</span> GL_RGBA16:</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="keywordflow">case</span> GL_RGBA16F_ARB:</div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <span class="keywordflow">case</span> GL_RGBA32F_ARB:</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <span class="keywordflow">return</span> 4;</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <span class="keywordflow">default</span>:</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <span class="keywordflow">return</span> 0;</div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  }</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> </div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span> </div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span> </div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span> <span class="comment">/* GLint __allegro_gl_get_texture_format_ex(BITMAP *bmp, int flags) */</span></div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span> GLint __allegro_gl_get_texture_format_ex(BITMAP *bmp, <span class="keywordtype">int</span> flags) {</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>  <span class="keywordflow">if</span> (!bmp) {</div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="keywordflow">return</span> -1;</div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  }</div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span> </div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <span class="keywordflow">switch</span> (bitmap_color_depth(bmp)) {</div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <span class="keywordflow">case</span> 32:</div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  <span class="keywordflow">if</span> (flags</div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  & (<a class="code" href="group__texture.html#ga8cc859eadf1610b424cd9188e716f432">AGL_TEXTURE_HAS_ALPHA</a> | AGL_TEXTURE_FORCE_ALPHA_INTERNAL)) {</div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <span class="keywordflow">return</span> GL_RGBA8;</div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  }</div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <span class="keywordflow">else</span> {</div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <span class="keywordflow">return</span> GL_RGB8;</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">case</span> 8:</div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <span class="keywordflow">return</span> GL_INTENSITY8;</div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  <span class="keywordflow">case</span> 15:</div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <span class="keywordflow">if</span> (flags & AGL_TEXTURE_FORCE_ALPHA_INTERNAL) {</div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <span class="keywordflow">return</span> GL_RGB5_A1;</div><div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  }</div><div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <span class="keywordflow">else</span> {</div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="keywordflow">return</span> GL_RGB5;</div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  }</div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <span class="keywordflow">case</span> 16:</div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <span class="keywordflow">case</span> 24:</div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  <span class="keywordflow">if</span> (flags & AGL_TEXTURE_FORCE_ALPHA_INTERNAL) {</div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <span class="keywordflow">return</span> GL_RGBA8;</div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  }</div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  <span class="keywordflow">else</span> {</div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <span class="keywordflow">return</span> GL_RGB8;</div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  }</div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  <span class="keywordflow">default</span>:</div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  <span class="keywordflow">return</span> -1;</div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  }</div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span> </div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  <span class="keywordflow">return</span> -1;</div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span> }</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> </div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span> <span class="comment">/* GLint allegro_gl_get_texture_format(BITMAP *bmp) */</span></div><div class="line"><a name="l00248"></a><span class="lineno"><a class="line" href="group__texture.html#ga2392fe7a8dd6db65532160821804aa68"> 248</a></span> GLint <a class="code" href="group__texture.html#ga2392fe7a8dd6db65532160821804aa68">allegro_gl_get_texture_format</a>(BITMAP *bmp) {</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>  <span class="keywordflow">if</span> (bmp && allegro_gl_opengl_internal_texture_format == -1) {</div><div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  <span class="keywordflow">return</span> __allegro_gl_get_texture_format_ex(bmp,</div><div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  __allegro_gl_use_alpha ? AGL_TEXTURE_FORCE_ALPHA_INTERNAL : 0);</div><div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  }</div><div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  </div><div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  <span class="keywordflow">return</span> allegro_gl_opengl_internal_texture_format;</div><div class="line"><a name="l00256"></a><span class="lineno"> 256</span> }</div><div class="line"><a name="l00257"></a><span class="lineno"> 257</span> </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> </div><div class="line"><a name="l00260"></a><span class="lineno"> 260</span> <span class="comment">/* GLint allegro_gl_set_texture_format(GLint format) */</span></div><div class="line"><a name="l00282"></a><span class="lineno"><a class="line" href="group__texture.html#ga5d535e8af776dd449cc4755b9e3585b1"> 282</a></span> GLint <a class="code" href="group__texture.html#ga5d535e8af776dd449cc4755b9e3585b1">allegro_gl_set_texture_format</a>(GLint format) {</div><div class="line"><a name="l00283"></a><span class="lineno"> 283</span> </div><div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  GLint old = allegro_gl_opengl_internal_texture_format;</div><div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  allegro_gl_opengl_internal_texture_format = format;</div><div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  <span class="keywordflow">return</span> old;</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> </div><div class="line"><a name="l00290"></a><span class="lineno"> 290</span> </div><div class="line"><a name="l00291"></a><span class="lineno"> 291</span> <span class="comment">/* GLenum __allegro_gl_get_bitmap_type(BITMAP *bmp, int flags) */</span></div><div class="line"><a name="l00311"></a><span class="lineno"> 311</span> GLenum __allegro_gl_get_bitmap_type(BITMAP *bmp, <span class="keywordtype">int</span> flags) {</div><div class="line"><a name="l00312"></a><span class="lineno"> 312</span> </div><div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  <span class="keywordtype">int</span> c = bitmap_color_depth(bmp);</div><div class="line"><a name="l00314"></a><span class="lineno"> 314</span> </div><div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  <span class="keywordflow">switch</span> (c) {</div><div class="line"><a name="l00316"></a><span class="lineno"> 316</span> </div><div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  <span class="keywordflow">case</span> 8:</div><div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  <span class="keywordflow">return</span> __allegro_gl_texture_read_format[0];</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">case</span> 15:</div><div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  <span class="keywordflow">return</span> __allegro_gl_texture_read_format[1];</div><div class="line"><a name="l00322"></a><span class="lineno"> 322</span> </div><div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  <span class="keywordflow">case</span> 16:</div><div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  <span class="keywordflow">return</span> __allegro_gl_texture_read_format[2];</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>  <span class="keywordflow">case</span> 24:</div><div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  <span class="keywordflow">return</span> __allegro_gl_texture_read_format[3];</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>  <span class="keywordflow">case</span> 32:</div><div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  <span class="keywordflow">return</span> __allegro_gl_texture_read_format[4];</div><div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  </div><div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  <span class="keywordflow">default</span>:</div><div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  TRACE(PREFIX_E <span class="stringliteral">"get_bitmap_type: unhandled bitmap depth: %d\n"</span>,</div><div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  c);</div><div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  <span class="keywordflow">return</span> -1;</div><div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  }</div><div class="line"><a name="l00337"></a><span class="lineno"> 337</span> }</div><div class="line"><a name="l00338"></a><span class="lineno"> 338</span> </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> </div><div class="line"><a name="l00341"></a><span class="lineno"> 341</span> <span class="comment">/* GLenum __allegro_gl_get_bitmap_color_format(BITMAP *bmp, int flags) */</span></div><div class="line"><a name="l00355"></a><span class="lineno"> 355</span> GLenum __allegro_gl_get_bitmap_color_format(BITMAP *bmp, <span class="keywordtype">int</span> flags) {</div><div class="line"><a name="l00356"></a><span class="lineno"> 356</span> </div><div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  <span class="keywordtype">int</span> c = bitmap_color_depth(bmp);</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="keywordflow">switch</span> (c) {</div><div class="line"><a name="l00360"></a><span class="lineno"> 360</span> </div><div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  <span class="keywordflow">case</span> 8:</div><div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  <span class="keywordflow">if</span> (flags & <a class="code" href="group__texture.html#gad67cfdfd21ef2cae75b03cb871e57f4a">AGL_TEXTURE_ALPHA_ONLY</a>) {</div><div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  <span class="keywordflow">return</span> GL_ALPHA;</div><div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  }</div><div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  <span class="keywordflow">else</span> {</div><div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  <span class="keywordflow">return</span> __allegro_gl_texture_components[0];</div><div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  }</div><div class="line"><a name="l00368"></a><span class="lineno"> 368</span> </div><div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  <span class="keywordflow">case</span> 15:</div><div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  <span class="keywordflow">if</span> (flags & AGL_TEXTURE_FORCE_ALPHA_INTERNAL) {</div><div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  <span class="keywordflow">return</span> GL_RGBA;</div><div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  }</div><div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  <span class="keywordflow">else</span> {</div><div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  <span class="keywordflow">return</span> __allegro_gl_texture_components[1];</div><div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  }</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>  <span class="keywordflow">case</span> 16:</div><div class="line"><a name="l00378"></a><span class="lineno"> 378</span>  <span class="keywordflow">return</span> __allegro_gl_texture_components[2];</div><div class="line"><a name="l00379"></a><span class="lineno"> 379</span> </div><div class="line"><a name="l00380"></a><span class="lineno"> 380</span>  <span class="keywordflow">case</span> 24:</div><div class="line"><a name="l00381"></a><span class="lineno"> 381</span>  <span class="keywordflow">return</span> __allegro_gl_texture_components[3];</div><div class="line"><a name="l00382"></a><span class="lineno"> 382</span> </div><div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  <span class="keywordflow">case</span> 32:</div><div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  <span class="keywordflow">if</span> (flags & (<a class="code" href="group__texture.html#ga8cc859eadf1610b424cd9188e716f432">AGL_TEXTURE_HAS_ALPHA</a></div><div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  | AGL_TEXTURE_FORCE_ALPHA_INTERNAL)) {</div><div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  <span class="keywordflow">return</span> GL_RGBA;</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">else</span> {</div><div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  <span class="keywordflow">return</span> __allegro_gl_texture_components[4];</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>  </div><div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  <span class="keywordflow">default</span>:</div><div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  TRACE(PREFIX_E <span class="stringliteral">"get_bitmap_color_format: unhandled bitmap "</span></div><div class="line"><a name="l00394"></a><span class="lineno"> 394</span>  <span class="stringliteral">"depth: %d\n"</span>, c);</div><div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  <span class="keywordflow">return</span> -1;</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> </div><div class="line"><a name="l00399"></a><span class="lineno"> 399</span> </div><div class="line"><a name="l00400"></a><span class="lineno"> 400</span> </div><div class="line"><a name="l00401"></a><span class="lineno"> 401</span> <span class="comment">/* int allegro_gl_use_mipmapping(int enable) */</span></div><div class="line"><a name="l00415"></a><span class="lineno"><a class="line" href="group__texture.html#gab5393ecc10a2a31da7eb80c889af89ac"> 415</a></span> <span class="keywordtype">int</span> <a class="code" href="group__texture.html#gab5393ecc10a2a31da7eb80c889af89ac">allegro_gl_use_mipmapping</a>(<span class="keywordtype">int</span> enable) {</div><div class="line"><a name="l00416"></a><span class="lineno"> 416</span> </div><div class="line"><a name="l00417"></a><span class="lineno"> 417</span>  <span class="keywordtype">int</span> old = allegro_gl_use_mipmapping_for_textures;</div><div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  allegro_gl_use_mipmapping_for_textures = enable;</div><div class="line"><a name="l00419"></a><span class="lineno"> 419</span>  <span class="keywordflow">return</span> old;</div><div class="line"><a name="l00420"></a><span class="lineno"> 420</span> }</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> </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> <span class="comment">/* int allegro_gl_use_alpha_channel(int enable) */</span></div><div class="line"><a name="l00439"></a><span class="lineno"><a class="line" href="group__texture.html#ga1d88f4ebc7ed1ecd65640b72ea46a71e"> 439</a></span> <span class="keywordtype">int</span> <a class="code" href="group__texture.html#ga1d88f4ebc7ed1ecd65640b72ea46a71e">allegro_gl_use_alpha_channel</a>(<span class="keywordtype">int</span> enable) {</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="keywordtype">int</span> old = __allegro_gl_use_alpha;</div><div class="line"><a name="l00442"></a><span class="lineno"> 442</span>  __allegro_gl_use_alpha = enable;</div><div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  <span class="keywordflow">return</span> old;</div><div class="line"><a name="l00444"></a><span class="lineno"> 444</span> }</div><div class="line"><a name="l00445"></a><span class="lineno"> 445</span>  </div><div class="line"><a name="l00446"></a><span class="lineno"> 446</span> </div><div class="line"><a name="l00447"></a><span class="lineno"> 447</span> </div><div class="line"><a name="l00448"></a><span class="lineno"> 448</span> <span class="comment">/* int allegro_gl_flip_texture(int enable) */</span></div><div class="line"><a name="l00464"></a><span class="lineno"><a class="line" href="group__texture.html#ga3ec0a1c4c6656f13c8398bab7a1293f2"> 464</a></span> <span class="keywordtype">int</span> <a class="code" href="group__texture.html#ga3ec0a1c4c6656f13c8398bab7a1293f2">allegro_gl_flip_texture</a>(<span class="keywordtype">int</span> enable) {</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>  <span class="keywordtype">int</span> old = __allegro_gl_flip_texture;</div><div class="line"><a name="l00467"></a><span class="lineno"> 467</span>  __allegro_gl_flip_texture = enable;</div><div class="line"><a name="l00468"></a><span class="lineno"> 468</span>  <span class="keywordflow">return</span> old;</div><div class="line"><a name="l00469"></a><span class="lineno"> 469</span> }</div><div class="line"><a name="l00470"></a><span class="lineno"> 470</span>  </div><div class="line"><a name="l00471"></a><span class="lineno"> 471</span> </div><div class="line"><a name="l00472"></a><span class="lineno"> 472</span> </div><div class="line"><a name="l00473"></a><span class="lineno"> 473</span> <span class="comment">/* int allegro_gl_check_texture_ex(int flags, BITMAP *bmp, GLuint internal_format) */</span></div><div class="line"><a name="l00495"></a><span class="lineno"><a class="line" href="group__texture.html#gab0cf4dc0ddcb45f5b067d08aed1c88e6"> 495</a></span> <span class="keywordtype">int</span> <a class="code" href="group__texture.html#gab0cf4dc0ddcb45f5b067d08aed1c88e6">allegro_gl_check_texture_ex</a>(<span class="keywordtype">int</span> flags, BITMAP *bmp,</div><div class="line"><a name="l00496"></a><span class="lineno"> 496</span>  GLint internal_format) {</div><div class="line"><a name="l00497"></a><span class="lineno"> 497</span> </div><div class="line"><a name="l00498"></a><span class="lineno"> 498</span>  <span class="keywordflow">return</span> (<a class="code" href="group__texture.html#gaf3a48c555068e7051171255c1011150a">allegro_gl_make_texture_ex</a>(flags | AGL_TEXTURE_CHECK_VALID_INTERNAL,</div><div class="line"><a name="l00499"></a><span class="lineno"> 499</span>  bmp, internal_format) ? TRUE : FALSE);</div><div class="line"><a name="l00500"></a><span class="lineno"> 500</span> }</div><div class="line"><a name="l00501"></a><span class="lineno"> 501</span> </div><div class="line"><a name="l00502"></a><span class="lineno"> 502</span> </div><div class="line"><a name="l00503"></a><span class="lineno"> 503</span> </div><div class="line"><a name="l00504"></a><span class="lineno"> 504</span> <span class="comment">/* Convert flags from pre-0.2.0 to 0.2.0+ */</span></div><div class="line"><a name="l00505"></a><span class="lineno"> 505</span> <span class="keyword">static</span> <span class="keywordtype">int</span> __allegro_gl_convert_flags(<span class="keywordtype">int</span> flags) {</div><div class="line"><a name="l00506"></a><span class="lineno"> 506</span> </div><div class="line"><a name="l00507"></a><span class="lineno"> 507</span>  flags |= <a class="code" href="group__texture.html#gaa8b7246edc7ec019ec3b434eb0cacdf2">AGL_TEXTURE_RESCALE</a>;</div><div class="line"><a name="l00508"></a><span class="lineno"> 508</span> </div><div class="line"><a name="l00509"></a><span class="lineno"> 509</span>  <span class="keywordflow">if</span> (allegro_gl_use_mipmapping_for_textures) {</div><div class="line"><a name="l00510"></a><span class="lineno"> 510</span>  flags |= <a class="code" href="group__texture.html#gabaf179e577a9328a751e92e3603f0746">AGL_TEXTURE_MIPMAP</a>;</div><div class="line"><a name="l00511"></a><span class="lineno"> 511</span>  }</div><div class="line"><a name="l00512"></a><span class="lineno"> 512</span>  <span class="keywordflow">if</span> (__allegro_gl_use_alpha) {</div><div class="line"><a name="l00513"></a><span class="lineno"> 513</span>  flags |= <a class="code" href="group__texture.html#ga8cc859eadf1610b424cd9188e716f432">AGL_TEXTURE_HAS_ALPHA</a>;</div><div class="line"><a name="l00514"></a><span class="lineno"> 514</span>  }</div><div class="line"><a name="l00515"></a><span class="lineno"> 515</span>  <span class="keywordflow">if</span> (__allegro_gl_flip_texture) {</div><div class="line"><a name="l00516"></a><span class="lineno"> 516</span>  flags |= <a class="code" href="group__texture.html#gadeffe4feb290278035beacedb284a010">AGL_TEXTURE_FLIP</a>;</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="keywordflow">if</span> (allegro_gl_opengl_internal_texture_format == GL_ALPHA4</div><div class="line"><a name="l00520"></a><span class="lineno"> 520</span>  || allegro_gl_opengl_internal_texture_format == GL_ALPHA8</div><div class="line"><a name="l00521"></a><span class="lineno"> 521</span>  || allegro_gl_opengl_internal_texture_format == GL_ALPHA12</div><div class="line"><a name="l00522"></a><span class="lineno"> 522</span>  || allegro_gl_opengl_internal_texture_format == GL_ALPHA16</div><div class="line"><a name="l00523"></a><span class="lineno"> 523</span>  || allegro_gl_opengl_internal_texture_format == GL_ALPHA</div><div class="line"><a name="l00524"></a><span class="lineno"> 524</span>  || allegro_gl_opengl_internal_texture_format == GL_INTENSITY4</div><div class="line"><a name="l00525"></a><span class="lineno"> 525</span>  || allegro_gl_opengl_internal_texture_format == GL_INTENSITY8</div><div class="line"><a name="l00526"></a><span class="lineno"> 526</span>  || allegro_gl_opengl_internal_texture_format == GL_INTENSITY12</div><div class="line"><a name="l00527"></a><span class="lineno"> 527</span>  || allegro_gl_opengl_internal_texture_format == GL_INTENSITY16</div><div class="line"><a name="l00528"></a><span class="lineno"> 528</span>  || allegro_gl_opengl_internal_texture_format == GL_INTENSITY</div><div class="line"><a name="l00529"></a><span class="lineno"> 529</span>  || allegro_gl_opengl_internal_texture_format == 1) {</div><div class="line"><a name="l00530"></a><span class="lineno"> 530</span>  flags |= <a class="code" href="group__texture.html#gad67cfdfd21ef2cae75b03cb871e57f4a">AGL_TEXTURE_ALPHA_ONLY</a>;</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> </div><div class="line"><a name="l00533"></a><span class="lineno"> 533</span>  <span class="keywordflow">return</span> flags;</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> </div><div class="line"><a name="l00538"></a><span class="lineno"> 538</span> <span class="comment">/* int allegro_gl_check_texture(BITMAP *bmp) */</span></div><div class="line"><a name="l00557"></a><span class="lineno"><a class="line" href="group__texture.html#ga6996c14538e18b1614f91d34b2d4d691"> 557</a></span> <span class="keywordtype">int</span> <a class="code" href="group__texture.html#ga6996c14538e18b1614f91d34b2d4d691">allegro_gl_check_texture</a>(BITMAP *bmp) {</div><div class="line"><a name="l00558"></a><span class="lineno"> 558</span> </div><div class="line"><a name="l00559"></a><span class="lineno"> 559</span>  <span class="keywordtype">int</span> flags = __allegro_gl_convert_flags(0);</div><div class="line"><a name="l00560"></a><span class="lineno"> 560</span>  </div><div class="line"><a name="l00561"></a><span class="lineno"> 561</span>  <span class="keywordflow">return</span> <a class="code" href="group__texture.html#gab0cf4dc0ddcb45f5b067d08aed1c88e6">allegro_gl_check_texture_ex</a>(flags, bmp,</div><div class="line"><a name="l00562"></a><span class="lineno"> 562</span>  allegro_gl_opengl_internal_texture_format);</div><div class="line"><a name="l00563"></a><span class="lineno"> 563</span> }</div><div class="line"><a name="l00564"></a><span class="lineno"> 564</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> </div><div class="line"><a name="l00567"></a><span class="lineno"> 567</span> <span class="comment">/* Integer log2 function. Not optimized for speed. */</span></div><div class="line"><a name="l00568"></a><span class="lineno"> 568</span> <span class="keyword">static</span> <span class="keywordtype">int</span> log2i(<span class="keywordtype">int</span> n) {</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="keywordtype">int</span> k;</div><div class="line"><a name="l00571"></a><span class="lineno"> 571</span>  </div><div class="line"><a name="l00572"></a><span class="lineno"> 572</span>  <span class="keywordflow">if</span> (n < 1) {</div><div class="line"><a name="l00573"></a><span class="lineno"> 573</span>  <span class="keywordflow">return</span> -1;</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> </div><div class="line"><a name="l00576"></a><span class="lineno"> 576</span>  k = 0;</div><div class="line"><a name="l00577"></a><span class="lineno"> 577</span>  <span class="keywordflow">while</span> (n >>= 1) {</div><div class="line"><a name="l00578"></a><span class="lineno"> 578</span>  k++;</div><div class="line"><a name="l00579"></a><span class="lineno"> 579</span>  }</div><div class="line"><a name="l00580"></a><span class="lineno"> 580</span> </div><div class="line"><a name="l00581"></a><span class="lineno"> 581</span>  <span class="keywordflow">return</span> k;</div><div class="line"><a name="l00582"></a><span class="lineno"> 582</span> }</div><div class="line"><a name="l00583"></a><span class="lineno"> 583</span> </div><div class="line"><a name="l00584"></a><span class="lineno"> 584</span> </div><div class="line"><a name="l00585"></a><span class="lineno"> 585</span> </div><div class="line"><a name="l00586"></a><span class="lineno"> 586</span> <span class="comment">/* BITMAP *__allegro_gl_munge_bitmap(int flags, BITMAP *bmp, GLint *type, GLint *format) */</span></div><div class="line"><a name="l00596"></a><span class="lineno"> 596</span> BITMAP *__allegro_gl_munge_bitmap(<span class="keywordtype">int</span> flags, BITMAP *bmp, <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y,</div><div class="line"><a name="l00597"></a><span class="lineno"> 597</span>  <span class="keywordtype">int</span> w, <span class="keywordtype">int</span> h, GLint *type, GLint *format) {</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>  BITMAP *ret = 0, *temp = 0;</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>  <span class="keywordtype">int</span> need_rescale = 0;</div><div class="line"><a name="l00602"></a><span class="lineno"> 602</span>  <span class="keywordtype">int</span> need_alpha = 0;</div><div class="line"><a name="l00603"></a><span class="lineno"> 603</span>  <span class="keywordtype">int</span> need_flip = 0;</div><div class="line"><a name="l00604"></a><span class="lineno"> 604</span>  <span class="keywordtype">int</span> depth = bitmap_color_depth(bmp);</div><div class="line"><a name="l00605"></a><span class="lineno"> 605</span>  <span class="keywordtype">int</span> force_copy = 0;</div><div class="line"><a name="l00606"></a><span class="lineno"> 606</span> </div><div class="line"><a name="l00607"></a><span class="lineno"> 607</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> old_w = w, old_h = h;</div><div class="line"><a name="l00608"></a><span class="lineno"> 608</span> </div><div class="line"><a name="l00609"></a><span class="lineno"> 609</span>  <span class="keywordflow">if</span> (flags & <a class="code" href="group__texture.html#gaa8b7246edc7ec019ec3b434eb0cacdf2">AGL_TEXTURE_RESCALE</a>) {</div><div class="line"><a name="l00610"></a><span class="lineno"> 610</span>  </div><div class="line"><a name="l00611"></a><span class="lineno"> 611</span>  <span class="comment">/* Check if rescaling is needed */</span></div><div class="line"><a name="l00612"></a><span class="lineno"> 612</span> </div><div class="line"><a name="l00613"></a><span class="lineno"> 613</span>  <span class="comment">/* NP2 is not supported, and the texture isn't a power-of-two.</span></div><div class="line"><a name="l00614"></a><span class="lineno"> 614</span> <span class="comment"> * Resize the next power of 2</span></div><div class="line"><a name="l00615"></a><span class="lineno"> 615</span> <span class="comment"> */</span> </div><div class="line"><a name="l00616"></a><span class="lineno"> 616</span>  <span class="keywordflow">if</span> (!<a class="code" href="group__extensions.html#ga7492f6f6acc608789210560ee63e5436">allegro_gl_extensions_GL</a>.ARB_texture_non_power_of_two</div><div class="line"><a name="l00617"></a><span class="lineno"> 617</span>  && ((w & (w - 1)) || (h & (h - 1)))) {</div><div class="line"><a name="l00618"></a><span class="lineno"> 618</span>  w = __allegro_gl_make_power_of_2(w);</div><div class="line"><a name="l00619"></a><span class="lineno"> 619</span>  h = __allegro_gl_make_power_of_2(h);</div><div class="line"><a name="l00620"></a><span class="lineno"> 620</span>  TRACE(PREFIX_I <span class="stringliteral">"munge_bitmap: Rescaling bitmap from "</span></div><div class="line"><a name="l00621"></a><span class="lineno"> 621</span>  <span class="stringliteral">"%ix%i to %ix%i due to non-power-of-2 source size.\n"</span>,</div><div class="line"><a name="l00622"></a><span class="lineno"> 622</span>  old_w, old_h, w, h);</div><div class="line"><a name="l00623"></a><span class="lineno"> 623</span>  need_rescale = 1;</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="comment">/* Don't go over the max texture size */</span></div><div class="line"><a name="l00627"></a><span class="lineno"> 627</span>  <span class="keywordflow">if</span> (w > allegro_gl_info.max_texture_size) {</div><div class="line"><a name="l00628"></a><span class="lineno"> 628</span>  w = allegro_gl_info.max_texture_size;</div><div class="line"><a name="l00629"></a><span class="lineno"> 629</span>  TRACE(PREFIX_I <span class="stringliteral">"munge_bitmap: Rescaling bitmap from "</span></div><div class="line"><a name="l00630"></a><span class="lineno"> 630</span>  <span class="stringliteral">"%ix%i to %ix%i due to max supported size exceed.\n"</span>,</div><div class="line"><a name="l00631"></a><span class="lineno"> 631</span>  old_w, old_h, w, h);</div><div class="line"><a name="l00632"></a><span class="lineno"> 632</span>  need_rescale = 1;</div><div class="line"><a name="l00633"></a><span class="lineno"> 633</span>  }</div><div class="line"><a name="l00634"></a><span class="lineno"> 634</span>  </div><div class="line"><a name="l00635"></a><span class="lineno"> 635</span>  <span class="keywordflow">if</span> (h > allegro_gl_info.max_texture_size) {</div><div class="line"><a name="l00636"></a><span class="lineno"> 636</span>  h = allegro_gl_info.max_texture_size;</div><div class="line"><a name="l00637"></a><span class="lineno"> 637</span>  TRACE(PREFIX_I <span class="stringliteral">"munge_bitmap: Rescaling bitmap from "</span></div><div class="line"><a name="l00638"></a><span class="lineno"> 638</span>  <span class="stringliteral">"%ix%i to %ix%i due to max supported size exceed.\n"</span>,</div><div class="line"><a name="l00639"></a><span class="lineno"> 639</span>  old_w, old_h, w, h);</div><div class="line"><a name="l00640"></a><span class="lineno"> 640</span>  need_rescale = 1;</div><div class="line"><a name="l00641"></a><span class="lineno"> 641</span>  }</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">/* Voodoos don't support mipmaps for textures greater than 32x32.</span></div><div class="line"><a name="l00644"></a><span class="lineno"> 644</span> <span class="comment"> * If we're allowed to rescale, rescale the bitmap to 32x32.</span></div><div class="line"><a name="l00645"></a><span class="lineno"> 645</span> <span class="comment"> * XXX <rohannessian> Apparently, this is a bug in one version</span></div><div class="line"><a name="l00646"></a><span class="lineno"> 646</span> <span class="comment"> * of the Voodoo GL driver. Need to figure out a workaround</span></div><div class="line"><a name="l00647"></a><span class="lineno"> 647</span> <span class="comment"> * for that.</span></div><div class="line"><a name="l00648"></a><span class="lineno"> 648</span> <span class="comment"> */</span></div><div class="line"><a name="l00649"></a><span class="lineno"> 649</span>  <span class="keywordflow">if</span> (allegro_gl_info.is_voodoo && (flags & <a class="code" href="group__texture.html#gabaf179e577a9328a751e92e3603f0746">AGL_TEXTURE_MIPMAP</a>)</div><div class="line"><a name="l00650"></a><span class="lineno"> 650</span>  && (w > 32 || h > 32)) {</div><div class="line"><a name="l00651"></a><span class="lineno"> 651</span> </div><div class="line"><a name="l00652"></a><span class="lineno"> 652</span>  w = MIN(32, w);</div><div class="line"><a name="l00653"></a><span class="lineno"> 653</span>  h = MIN(32, h);</div><div class="line"><a name="l00654"></a><span class="lineno"> 654</span>  </div><div class="line"><a name="l00655"></a><span class="lineno"> 655</span>  TRACE(PREFIX_I <span class="stringliteral">"munge_bitmap: Rescaling bitmap from "</span></div><div class="line"><a name="l00656"></a><span class="lineno"> 656</span>  <span class="stringliteral">"%ix%i to %ix%i due to Voodoo driver bug.\n"</span>,</div><div class="line"><a name="l00657"></a><span class="lineno"> 657</span>  old_w, old_h, w, h);</div><div class="line"><a name="l00658"></a><span class="lineno"> 658</span>  need_rescale = 1;</div><div class="line"><a name="l00659"></a><span class="lineno"> 659</span>  }</div><div class="line"><a name="l00660"></a><span class="lineno"> 660</span>  }</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="comment">/* Matrox G200 cards have a bug where rectangular textures can't have</span></div><div class="line"><a name="l00663"></a><span class="lineno"> 663</span> <span class="comment"> * more than 4 levels of mipmaps (max_mip == 3). This doesn't seem</span></div><div class="line"><a name="l00664"></a><span class="lineno"> 664</span> <span class="comment"> * to affect square textures.</span></div><div class="line"><a name="l00665"></a><span class="lineno"> 665</span> <span class="comment"> *</span></div><div class="line"><a name="l00666"></a><span class="lineno"> 666</span> <span class="comment"> * Note: Using GLU to build the mipmaps seems to work. Maybe AGL is</span></div><div class="line"><a name="l00667"></a><span class="lineno"> 667</span> <span class="comment"> * doing something wrong?</span></div><div class="line"><a name="l00668"></a><span class="lineno"> 668</span> <span class="comment"> *</span></div><div class="line"><a name="l00669"></a><span class="lineno"> 669</span> <span class="comment"> * Workaround: Use GLU to build the mipmaps, and force depth to 24 or</span></div><div class="line"><a name="l00670"></a><span class="lineno"> 670</span> <span class="comment"> * 32.</span></div><div class="line"><a name="l00671"></a><span class="lineno"> 671</span> <span class="comment"> */</span></div><div class="line"><a name="l00672"></a><span class="lineno"> 672</span>  <span class="keywordflow">if</span> ( allegro_gl_info.is_matrox_g200 && (flags & <a class="code" href="group__texture.html#gabaf179e577a9328a751e92e3603f0746">AGL_TEXTURE_MIPMAP</a>)) {</div><div class="line"><a name="l00673"></a><span class="lineno"> 673</span>  <span class="keywordtype">int</span> wl = log2i(w);</div><div class="line"><a name="l00674"></a><span class="lineno"> 674</span>  <span class="keywordtype">int</span> hl = log2i(h);</div><div class="line"><a name="l00675"></a><span class="lineno"> 675</span> </div><div class="line"><a name="l00676"></a><span class="lineno"> 676</span>  <span class="keywordflow">if</span> (w != h && MAX(wl, hl) > 3 && depth < 24</div><div class="line"><a name="l00677"></a><span class="lineno"> 677</span>  && !(flags & <a class="code" href="group__texture.html#gad67cfdfd21ef2cae75b03cb871e57f4a">AGL_TEXTURE_ALPHA_ONLY</a>)) {</div><div class="line"><a name="l00678"></a><span class="lineno"> 678</span>  TRACE(PREFIX_I <span class="stringliteral">"munge_bitmap: G200 path in use.\n"</span>);</div><div class="line"><a name="l00679"></a><span class="lineno"> 679</span>  depth = 24;</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>  </div><div class="line"><a name="l00683"></a><span class="lineno"> 683</span>  <span class="comment">/* Do we need to flip the texture on the t axis? */</span></div><div class="line"><a name="l00684"></a><span class="lineno"> 684</span>  <span class="keywordflow">if</span> (flags & <a class="code" href="group__texture.html#gadeffe4feb290278035beacedb284a010">AGL_TEXTURE_FLIP</a>) {</div><div class="line"><a name="l00685"></a><span class="lineno"> 685</span>  need_flip = 1;</div><div class="line"><a name="l00686"></a><span class="lineno"> 686</span>  }</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> </div><div class="line"><a name="l00689"></a><span class="lineno"> 689</span>  <span class="comment">/* If not supported, blit to a 24 bpp bitmap and try again</span></div><div class="line"><a name="l00690"></a><span class="lineno"> 690</span> <span class="comment"> */</span></div><div class="line"><a name="l00691"></a><span class="lineno"> 691</span>  <span class="keywordflow">if</span> (*type == -1) {</div><div class="line"><a name="l00692"></a><span class="lineno"> 692</span>  TRACE(PREFIX_W <span class="stringliteral">"munge_bitmap: using temporary 24bpp bitmap\n"</span>);</div><div class="line"><a name="l00693"></a><span class="lineno"> 693</span>  depth = 24;</div><div class="line"><a name="l00694"></a><span class="lineno"> 694</span>  }</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>  <span class="comment">/* We need a texture that can be used for masked blits.</span></div><div class="line"><a name="l00697"></a><span class="lineno"> 697</span> <span class="comment"> * Insert an alpha channel if one is not there.</span></div><div class="line"><a name="l00698"></a><span class="lineno"> 698</span> <span class="comment"> * If it's already there, replace it by 0/1 as needed.</span></div><div class="line"><a name="l00699"></a><span class="lineno"> 699</span> <span class="comment"> */</span></div><div class="line"><a name="l00700"></a><span class="lineno"> 700</span>  <span class="keywordflow">if</span> ((flags & <a class="code" href="group__texture.html#gaba184d573c65f33b35d1d57936607d08">AGL_TEXTURE_MASKED</a>) && !(flags & <a class="code" href="group__texture.html#gad67cfdfd21ef2cae75b03cb871e57f4a">AGL_TEXTURE_ALPHA_ONLY</a>)) {</div><div class="line"><a name="l00701"></a><span class="lineno"> 701</span>  need_alpha = 1;</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="keywordflow">switch</span> (depth) {</div><div class="line"><a name="l00704"></a><span class="lineno"> 704</span>  <span class="keywordflow">case</span> 15:</div><div class="line"><a name="l00705"></a><span class="lineno"> 705</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="l00706"></a><span class="lineno"> 706</span>  depth = 32;</div><div class="line"><a name="l00707"></a><span class="lineno"> 707</span>  }</div><div class="line"><a name="l00708"></a><span class="lineno"> 708</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00709"></a><span class="lineno"> 709</span>  <span class="keywordflow">case</span> 8:</div><div class="line"><a name="l00710"></a><span class="lineno"> 710</span>  <span class="keywordflow">case</span> 16:</div><div class="line"><a name="l00711"></a><span class="lineno"> 711</span>  <span class="keywordflow">case</span> 24:</div><div class="line"><a name="l00712"></a><span class="lineno"> 712</span>  <span class="keywordflow">case</span> 32:</div><div class="line"><a name="l00713"></a><span class="lineno"> 713</span>  depth = 32;</div><div class="line"><a name="l00714"></a><span class="lineno"> 714</span>  <span class="keywordflow">break</span>;</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>  force_copy = 1;</div><div class="line"><a name="l00717"></a><span class="lineno"> 717</span>  }</div><div class="line"><a name="l00718"></a><span class="lineno"> 718</span> </div><div class="line"><a name="l00719"></a><span class="lineno"> 719</span>  <span class="comment">/* Allegro fills in 0 for the alpha channel. Matrox G200 seems to ignore</span></div><div class="line"><a name="l00720"></a><span class="lineno"> 720</span> <span class="comment"> * the internal format; so we need to drop down to 24-bpp if no alpha</span></div><div class="line"><a name="l00721"></a><span class="lineno"> 721</span> <span class="comment"> * will be needed.</span></div><div class="line"><a name="l00722"></a><span class="lineno"> 722</span> <span class="comment"> */</span></div><div class="line"><a name="l00723"></a><span class="lineno"> 723</span>  <span class="keywordflow">if</span> (allegro_gl_info.is_matrox_g200 && !(flags & AGL_TEXTURE_MASKED)</div><div class="line"><a name="l00724"></a><span class="lineno"> 724</span>  && !(flags & <a class="code" href="group__texture.html#ga8cc859eadf1610b424cd9188e716f432">AGL_TEXTURE_HAS_ALPHA</a>) && depth == 32) {</div><div class="line"><a name="l00725"></a><span class="lineno"> 725</span>  TRACE(PREFIX_I <span class="stringliteral">"munge_bitmap: G200 path in use.\n"</span>);</div><div class="line"><a name="l00726"></a><span class="lineno"> 726</span>  depth = 24;</div><div class="line"><a name="l00727"></a><span class="lineno"> 727</span>  force_copy = 1;</div><div class="line"><a name="l00728"></a><span class="lineno"> 728</span>  }</div><div class="line"><a name="l00729"></a><span class="lineno"> 729</span> </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">/* Do we need to do a color depth conversion or bitmap copy? */</span></div><div class="line"><a name="l00732"></a><span class="lineno"> 732</span>  <span class="keywordflow">if</span> (depth != bitmap_color_depth(bmp) || force_copy) {</div><div class="line"><a name="l00733"></a><span class="lineno"> 733</span> </div><div class="line"><a name="l00734"></a><span class="lineno"> 734</span>  TRACE(PREFIX_I <span class="stringliteral">"munge_bitmap: Need to perform depth conversion from %i "</span></div><div class="line"><a name="l00735"></a><span class="lineno"> 735</span>  <span class="stringliteral">"to %i bpp.\n"</span>, bitmap_color_depth(bmp), depth);</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>  temp = create_bitmap_ex(depth, bmp->w, bmp->h);</div><div class="line"><a name="l00738"></a><span class="lineno"> 738</span> </div><div class="line"><a name="l00739"></a><span class="lineno"> 739</span>  <span class="keywordflow">if</span> (!temp) {</div><div class="line"><a name="l00740"></a><span class="lineno"> 740</span>  TRACE(PREFIX_E <span class="stringliteral">"munge_bitmap: Unable to create temporary bitmap "</span></div><div class="line"><a name="l00741"></a><span class="lineno"> 741</span>  <span class="stringliteral">"%ix%ix%i\n"</span>, bmp->w, bmp->h, depth);</div><div class="line"><a name="l00742"></a><span class="lineno"> 742</span>  <span class="keywordflow">return</span> NULL;</div><div class="line"><a name="l00743"></a><span class="lineno"> 743</span>  }</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="comment">/* XXX <rohannessian> Use palette conversion?</span></div><div class="line"><a name="l00746"></a><span class="lineno"> 746</span> <span class="comment"> */</span></div><div class="line"><a name="l00747"></a><span class="lineno"> 747</span>  <span class="keywordflow">if</span> (bitmap_color_depth(bmp) == 8 && depth > 8) {</div><div class="line"><a name="l00748"></a><span class="lineno"> 748</span>  <span class="keywordtype">int</span> i, j;</div><div class="line"><a name="l00749"></a><span class="lineno"> 749</span>  <span class="keywordflow">for</span> (j = 0; j < bmp->h; j++) {</div><div class="line"><a name="l00750"></a><span class="lineno"> 750</span>  <span class="keywordflow">for</span> (i = 0; i < bmp->w; i++) {</div><div class="line"><a name="l00751"></a><span class="lineno"> 751</span>  <span class="keywordtype">int</span> c = _getpixel(bmp, i, j);</div><div class="line"><a name="l00752"></a><span class="lineno"> 752</span>  putpixel(temp, i, j, makecol_depth(depth, c, c, c));</div><div class="line"><a name="l00753"></a><span class="lineno"> 753</span>  }</div><div class="line"><a name="l00754"></a><span class="lineno"> 754</span>  }</div><div class="line"><a name="l00755"></a><span class="lineno"> 755</span>  }</div><div class="line"><a name="l00756"></a><span class="lineno"> 756</span>  <span class="keywordflow">else</span> {</div><div class="line"><a name="l00757"></a><span class="lineno"> 757</span>  blit(bmp, temp, 0, 0, 0, 0, bmp->w, bmp->h);</div><div class="line"><a name="l00758"></a><span class="lineno"> 758</span>  }</div><div class="line"><a name="l00759"></a><span class="lineno"> 759</span>  bmp = temp;</div><div class="line"><a name="l00760"></a><span class="lineno"> 760</span> </div><div class="line"><a name="l00761"></a><span class="lineno"> 761</span>  *format = __allegro_gl_get_bitmap_color_format(bmp, flags);</div><div class="line"><a name="l00762"></a><span class="lineno"> 762</span>  *type = __allegro_gl_get_bitmap_type(bmp, flags);</div><div class="line"><a name="l00763"></a><span class="lineno"> 763</span>  }</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> </div><div class="line"><a name="l00766"></a><span class="lineno"> 766</span> </div><div class="line"><a name="l00767"></a><span class="lineno"> 767</span>  <span class="comment">/* Nothing to do? */</span></div><div class="line"><a name="l00768"></a><span class="lineno"> 768</span>  <span class="keywordflow">if</span> (!need_rescale && !need_alpha && !need_flip) {</div><div class="line"><a name="l00769"></a><span class="lineno"> 769</span> </div><div class="line"><a name="l00770"></a><span class="lineno"> 770</span>  TRACE(PREFIX_I <span class="stringliteral">"munge_bitmap: No need for munging - returning %p\n"</span>,</div><div class="line"><a name="l00771"></a><span class="lineno"> 771</span>  temp);</div><div class="line"><a name="l00772"></a><span class="lineno"> 772</span>  </div><div class="line"><a name="l00773"></a><span class="lineno"> 773</span>  <span class="comment">/* Return depth-converte bitmap, if present */</span></div><div class="line"><a name="l00774"></a><span class="lineno"> 774</span>  <span class="keywordflow">if</span> (temp) {</div><div class="line"><a name="l00775"></a><span class="lineno"> 775</span>  <span class="keywordflow">return</span> temp;</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>  <span class="keywordflow">return</span> NULL;</div><div class="line"><a name="l00778"></a><span class="lineno"> 778</span>  }</div><div class="line"><a name="l00779"></a><span class="lineno"> 779</span> </div><div class="line"><a name="l00780"></a><span class="lineno"> 780</span>  ret = create_bitmap_ex(depth, w, h);</div><div class="line"><a name="l00781"></a><span class="lineno"> 781</span>  </div><div class="line"><a name="l00782"></a><span class="lineno"> 782</span>  <span class="keywordflow">if</span> (!ret) {</div><div class="line"><a name="l00783"></a><span class="lineno"> 783</span>  TRACE(PREFIX_E <span class="stringliteral">"munge_bitmap: Unable to create result bitmap "</span></div><div class="line"><a name="l00784"></a><span class="lineno"> 784</span>  <span class="stringliteral">"%ix%ix%i\n"</span>, w, h, depth);</div><div class="line"><a name="l00785"></a><span class="lineno"> 785</span>  <span class="keywordflow">goto</span> error;</div><div class="line"><a name="l00786"></a><span class="lineno"> 786</span>  }</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> </div><div class="line"><a name="l00789"></a><span class="lineno"> 789</span>  <span class="comment">/* No need to fill in bitmap if we're just making a query */</span></div><div class="line"><a name="l00790"></a><span class="lineno"> 790</span>  <span class="keywordflow">if</span> (flags & AGL_TEXTURE_CHECK_VALID_INTERNAL) {</div><div class="line"><a name="l00791"></a><span class="lineno"> 791</span>  <span class="keywordflow">if</span> (temp) {</div><div class="line"><a name="l00792"></a><span class="lineno"> 792</span>  destroy_bitmap(temp);</div><div class="line"><a name="l00793"></a><span class="lineno"> 793</span>  }</div><div class="line"><a name="l00794"></a><span class="lineno"> 794</span>  <span class="keywordflow">return</span> ret;</div><div class="line"><a name="l00795"></a><span class="lineno"> 795</span>  }</div><div class="line"><a name="l00796"></a><span class="lineno"> 796</span> </div><div class="line"><a name="l00797"></a><span class="lineno"> 797</span> </div><div class="line"><a name="l00798"></a><span class="lineno"> 798</span>  <span class="comment">/* Perform flip</span></div><div class="line"><a name="l00799"></a><span class="lineno"> 799</span> <span class="comment"> * I don't want to have to deal with *yet another* temporary bitmap</span></div><div class="line"><a name="l00800"></a><span class="lineno"> 800</span> <span class="comment"> * so instead, I fugde the line pointers around.</span></div><div class="line"><a name="l00801"></a><span class="lineno"> 801</span> <span class="comment"> * This will work because we require Allegro memory bitmaps anyway.</span></div><div class="line"><a name="l00802"></a><span class="lineno"> 802</span> <span class="comment"> */</span></div><div class="line"><a name="l00803"></a><span class="lineno"> 803</span>  <span class="keywordflow">if</span> (need_flip) {</div><div class="line"><a name="l00804"></a><span class="lineno"> 804</span>  <span class="keywordtype">int</span> i;</div><div class="line"><a name="l00805"></a><span class="lineno"> 805</span>  TRACE(PREFIX_I <span class="stringliteral">"munge_bitmap: Flipping bitmap.\n"</span>);</div><div class="line"><a name="l00806"></a><span class="lineno"> 806</span>  <span class="keywordflow">for</span> (i = 0; i < bmp->h/2; i++) {</div><div class="line"><a name="l00807"></a><span class="lineno"> 807</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *l = bmp->line[i];</div><div class="line"><a name="l00808"></a><span class="lineno"> 808</span>  bmp->line[i] = bmp->line[bmp->h - i - 1];</div><div class="line"><a name="l00809"></a><span class="lineno"> 809</span>  bmp->line[bmp->h - i - 1] = l;</div><div class="line"><a name="l00810"></a><span class="lineno"> 810</span>  }</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>  </div><div class="line"><a name="l00813"></a><span class="lineno"> 813</span>  <span class="comment">/* Rescale bitmap */</span></div><div class="line"><a name="l00814"></a><span class="lineno"> 814</span>  <span class="keywordflow">if</span> (need_rescale) {</div><div class="line"><a name="l00815"></a><span class="lineno"> 815</span>  TRACE(PREFIX_I <span class="stringliteral">"munge_bitmap: Rescaling bitmap.\n"</span>);</div><div class="line"><a name="l00816"></a><span class="lineno"> 816</span>  stretch_blit(bmp, ret, x, y, old_w, old_h, 0, 0, ret->w, ret->h);</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>  <span class="keywordflow">else</span> {</div><div class="line"><a name="l00819"></a><span class="lineno"> 819</span>  TRACE(PREFIX_I <span class="stringliteral">"munge_bitmap: Copying bitmap.\n"</span>);</div><div class="line"><a name="l00820"></a><span class="lineno"> 820</span>  blit(bmp, ret, x, y, 0, 0, w, h);</div><div class="line"><a name="l00821"></a><span class="lineno"> 821</span>  }</div><div class="line"><a name="l00822"></a><span class="lineno"> 822</span> </div><div class="line"><a name="l00823"></a><span class="lineno"> 823</span>  <span class="comment">/* Restore the original bitmap, if needed */</span></div><div class="line"><a name="l00824"></a><span class="lineno"> 824</span>  <span class="keywordflow">if</span> (need_flip && !temp) {</div><div class="line"><a name="l00825"></a><span class="lineno"> 825</span>  <span class="keywordtype">int</span> i;</div><div class="line"><a name="l00826"></a><span class="lineno"> 826</span>  TRACE(PREFIX_I <span class="stringliteral">"munge_bitmap: Unflipping bitmap.\n"</span>);</div><div class="line"><a name="l00827"></a><span class="lineno"> 827</span>  <span class="keywordflow">for</span> (i = 0; i < bmp->h/2; i++) {</div><div class="line"><a name="l00828"></a><span class="lineno"> 828</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *l = bmp->line[i];</div><div class="line"><a name="l00829"></a><span class="lineno"> 829</span>  bmp->line[i] = bmp->line[bmp->h - i - 1];</div><div class="line"><a name="l00830"></a><span class="lineno"> 830</span>  bmp->line[bmp->h - i - 1] = l;</div><div class="line"><a name="l00831"></a><span class="lineno"> 831</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>  <span class="comment">/* Insert alpha channel */</span></div><div class="line"><a name="l00835"></a><span class="lineno"> 835</span>  <span class="keywordflow">if</span> (need_alpha) {</div><div class="line"><a name="l00836"></a><span class="lineno"> 836</span>  <span class="keywordtype">int</span> i, j;</div><div class="line"><a name="l00837"></a><span class="lineno"> 837</span>  <span class="keywordtype">int</span> mask = bitmap_mask_color(ret);</div><div class="line"><a name="l00838"></a><span class="lineno"> 838</span> </div><div class="line"><a name="l00839"></a><span class="lineno"> 839</span>  <span class="comment">/* alpha mask for 5.5.5.1 pixels */</span></div><div class="line"><a name="l00840"></a><span class="lineno"> 840</span>  <span class="keywordtype">int</span> alpha = (-1) ^ makecol_depth(depth, 255, 255, 255);</div><div class="line"><a name="l00841"></a><span class="lineno"> 841</span> </div><div class="line"><a name="l00842"></a><span class="lineno"> 842</span>  TRACE(PREFIX_I <span class="stringliteral">"munge_bitmap: Inserting alpha channel.\n"</span>);</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="keywordflow">for</span> (j = 0; j < h; j++) {</div><div class="line"><a name="l00845"></a><span class="lineno"> 845</span>  <span class="keywordflow">for</span> (i = 0; i < w; i++) {</div><div class="line"><a name="l00846"></a><span class="lineno"> 846</span>  <span class="keywordtype">int</span> pix;</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>  <span class="keywordflow">switch</span> (depth) {</div><div class="line"><a name="l00849"></a><span class="lineno"> 849</span>  <span class="keywordflow">case</span> 32:</div><div class="line"><a name="l00850"></a><span class="lineno"> 850</span>  pix = _getpixel32(ret, i, j);</div><div class="line"><a name="l00851"></a><span class="lineno"> 851</span> </div><div class="line"><a name="l00852"></a><span class="lineno"> 852</span>  <span class="keywordflow">if</span> (pix == mask) {</div><div class="line"><a name="l00853"></a><span class="lineno"> 853</span>  pix = 0;</div><div class="line"><a name="l00854"></a><span class="lineno"> 854</span>  }</div><div class="line"><a name="l00855"></a><span class="lineno"> 855</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> ((flags & AGL_TEXTURE_HAS_ALPHA) == 0) {</div><div class="line"><a name="l00856"></a><span class="lineno"> 856</span>  <span class="keywordtype">int</span> r, g, b;</div><div class="line"><a name="l00857"></a><span class="lineno"> 857</span>  r = getr32(pix);</div><div class="line"><a name="l00858"></a><span class="lineno"> 858</span>  g = getg32(pix);</div><div class="line"><a name="l00859"></a><span class="lineno"> 859</span>  b = getb32(pix);</div><div class="line"><a name="l00860"></a><span class="lineno"> 860</span>  pix = makeacol32(r, g, b, 255);</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>  _putpixel32(ret, i, j, pix);</div><div class="line"><a name="l00863"></a><span class="lineno"> 863</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00864"></a><span class="lineno"> 864</span>  <span class="keywordflow">case</span> 15: </div><div class="line"><a name="l00865"></a><span class="lineno"> 865</span>  pix = _getpixel16(ret, i, j);</div><div class="line"><a name="l00866"></a><span class="lineno"> 866</span> </div><div class="line"><a name="l00867"></a><span class="lineno"> 867</span>  <span class="keywordflow">if</span> (pix == mask) {</div><div class="line"><a name="l00868"></a><span class="lineno"> 868</span>  pix = 0;</div><div class="line"><a name="l00869"></a><span class="lineno"> 869</span>  }</div><div class="line"><a name="l00870"></a><span class="lineno"> 870</span>  <span class="keywordflow">else</span> {</div><div class="line"><a name="l00871"></a><span class="lineno"> 871</span>  pix |= alpha;</div><div class="line"><a name="l00872"></a><span class="lineno"> 872</span>  }</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>  _putpixel16(temp, i, j, pix);</div><div class="line"><a name="l00875"></a><span class="lineno"> 875</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00876"></a><span class="lineno"> 876</span>  <span class="keywordflow">default</span>:</div><div class="line"><a name="l00877"></a><span class="lineno"> 877</span>  <span class="comment">/* Shouldn't actually come here */</span></div><div class="line"><a name="l00878"></a><span class="lineno"> 878</span>  ASSERT(0);</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>  }</div><div class="line"><a name="l00881"></a><span class="lineno"> 881</span>  }</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> </div><div class="line"><a name="l00884"></a><span class="lineno"> 884</span> </div><div class="line"><a name="l00885"></a><span class="lineno"> 885</span> error:</div><div class="line"><a name="l00886"></a><span class="lineno"> 886</span>  <span class="keywordflow">if</span> (temp) {</div><div class="line"><a name="l00887"></a><span class="lineno"> 887</span>  destroy_bitmap(temp);</div><div class="line"><a name="l00888"></a><span class="lineno"> 888</span>  }</div><div class="line"><a name="l00889"></a><span class="lineno"> 889</span> </div><div class="line"><a name="l00890"></a><span class="lineno"> 890</span>  <span class="keywordflow">return</span> ret;</div><div class="line"><a name="l00891"></a><span class="lineno"> 891</span> }</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> </div><div class="line"><a name="l00894"></a><span class="lineno"> 894</span> </div><div class="line"><a name="l00895"></a><span class="lineno"> 895</span> <span class="comment">/* Perform the actual texture upload. Helper for agl_make_texture_ex().</span></div><div class="line"><a name="l00896"></a><span class="lineno"> 896</span> <span class="comment"> */</span></div><div class="line"><a name="l00897"></a><span class="lineno"> 897</span> <span class="keyword">static</span> GLuint do_texture_upload(BITMAP *bmp, GLuint tex, GLint internal_format,</div><div class="line"><a name="l00898"></a><span class="lineno"> 898</span>  GLint format, GLint type, <span class="keywordtype">int</span> flags) {</div><div class="line"><a name="l00899"></a><span class="lineno"> 899</span> </div><div class="line"><a name="l00900"></a><span class="lineno"> 900</span>  <span class="keywordtype">int</span> bytes_per_pixel = BYTES_PER_PIXEL(bitmap_color_depth(bmp));</div><div class="line"><a name="l00901"></a><span class="lineno"> 901</span>  GLint saved_row_length;</div><div class="line"><a name="l00902"></a><span class="lineno"> 902</span>  GLint saved_alignment;</div><div class="line"><a name="l00903"></a><span class="lineno"> 903</span>  GLenum target = GL_TEXTURE_2D;</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>  glBindTexture(target, tex);</div><div class="line"><a name="l00906"></a><span class="lineno"> 906</span>  </div><div class="line"><a name="l00907"></a><span class="lineno"> 907</span> </div><div class="line"><a name="l00908"></a><span class="lineno"> 908</span>  <span class="comment">/* Handle proxy texture checks */</span></div><div class="line"><a name="l00909"></a><span class="lineno"> 909</span>  <span class="keywordflow">if</span> (flags & AGL_TEXTURE_CHECK_VALID_INTERNAL) { </div><div class="line"><a name="l00910"></a><span class="lineno"> 910</span>  <span class="comment">/* <bcoconni> allegro_gl_check_texture is broken with GL drivers based</span></div><div class="line"><a name="l00911"></a><span class="lineno"> 911</span> <span class="comment"> * on Mesa. It seems this is a Mesa bug...</span></div><div class="line"><a name="l00912"></a><span class="lineno"> 912</span> <span class="comment"> */</span></div><div class="line"><a name="l00913"></a><span class="lineno"> 913</span>  <span class="keywordflow">if</span> (allegro_gl_info.is_mesa_driver) {</div><div class="line"><a name="l00914"></a><span class="lineno"> 914</span>  AGL_LOG(1, <span class="stringliteral">"* Note * check_texture: Mesa driver detected: "</span></div><div class="line"><a name="l00915"></a><span class="lineno"> 915</span>  <span class="stringliteral">"PROXY_TEXTURE_2D tests are skipped\n"</span>);</div><div class="line"><a name="l00916"></a><span class="lineno"> 916</span>  <span class="keywordflow">return</span> tex;</div><div class="line"><a name="l00917"></a><span class="lineno"> 917</span>  }</div><div class="line"><a name="l00918"></a><span class="lineno"> 918</span>  <span class="keywordflow">else</span> {</div><div class="line"><a name="l00919"></a><span class="lineno"> 919</span>  glTexImage2D(GL_PROXY_TEXTURE_2D, 0, internal_format,</div><div class="line"><a name="l00920"></a><span class="lineno"> 920</span>  bmp->w, bmp->h, 0, format, type, NULL);</div><div class="line"><a name="l00921"></a><span class="lineno"> 921</span> </div><div class="line"><a name="l00922"></a><span class="lineno"> 922</span>  glGetTexLevelParameteriv(GL_PROXY_TEXTURE_2D, 0,</div><div class="line"><a name="l00923"></a><span class="lineno"> 923</span>  GL_TEXTURE_COMPONENTS, &internal_format);</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>  <span class="keywordflow">return</span> (internal_format ? tex : 0);</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>  }</div><div class="line"><a name="l00928"></a><span class="lineno"> 928</span>  </div><div class="line"><a name="l00929"></a><span class="lineno"> 929</span> </div><div class="line"><a name="l00930"></a><span class="lineno"> 930</span>  <span class="comment">/* Set up pixel transfer mode */</span></div><div class="line"><a name="l00931"></a><span class="lineno"> 931</span>  glGetIntegerv(GL_UNPACK_ROW_LENGTH, &saved_row_length);</div><div class="line"><a name="l00932"></a><span class="lineno"> 932</span>  glGetIntegerv(GL_UNPACK_ALIGNMENT, &saved_alignment);</div><div class="line"><a name="l00933"></a><span class="lineno"> 933</span>  glPixelStorei(GL_UNPACK_ALIGNMENT, 1);</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>  TRACE(PREFIX_I <span class="stringliteral">"do_texture_upload: Making texture: bpp: %i\n"</span>,</div><div class="line"><a name="l00936"></a><span class="lineno"> 936</span>  bitmap_color_depth(bmp));</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="comment">/* Generate mipmaps, if needed */</span></div><div class="line"><a name="l00939"></a><span class="lineno"> 939</span>  <span class="keywordflow">if</span> (flags & <a class="code" href="group__texture.html#gabaf179e577a9328a751e92e3603f0746">AGL_TEXTURE_MIPMAP</a>) {</div><div class="line"><a name="l00940"></a><span class="lineno"> 940</span>  </div><div class="line"><a name="l00941"></a><span class="lineno"> 941</span>  <span class="keywordflow">if</span> (<a class="code" href="group__extensions.html#ga7492f6f6acc608789210560ee63e5436">allegro_gl_extensions_GL</a>.SGIS_generate_mipmap) {</div><div class="line"><a name="l00942"></a><span class="lineno"> 942</span>  <span class="comment">/* Easy way out - let the driver do it ;) </span></div><div class="line"><a name="l00943"></a><span class="lineno"> 943</span> <span class="comment"> * We do need to set high-qual mipmap generation though.</span></div><div class="line"><a name="l00944"></a><span class="lineno"> 944</span> <span class="comment"> */</span></div><div class="line"><a name="l00945"></a><span class="lineno"> 945</span>  glHint(GL_GENERATE_MIPMAP_HINT, GL_NICEST);</div><div class="line"><a name="l00946"></a><span class="lineno"> 946</span>  glTexParameteri(target, GL_GENERATE_MIPMAP, GL_TRUE);</div><div class="line"><a name="l00947"></a><span class="lineno"> 947</span>  TRACE(PREFIX_I <span class="stringliteral">"do_texture_upload: Using SGIS_generate_mipmap for "</span></div><div class="line"><a name="l00948"></a><span class="lineno"> 948</span>  <span class="stringliteral">"mipmap generation.\n"</span>);</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>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (allegro_gl_info.is_matrox_g200</div><div class="line"><a name="l00951"></a><span class="lineno"> 951</span>  && (flags & AGL_TEXTURE_MIPMAP) && (bitmap_color_depth(bmp) >= 24</div><div class="line"><a name="l00952"></a><span class="lineno"> 952</span>  || bitmap_color_depth(bmp) == 8)</div><div class="line"><a name="l00953"></a><span class="lineno"> 953</span>  && (bmp->w != bmp->h)) {</div><div class="line"><a name="l00954"></a><span class="lineno"> 954</span>  </div><div class="line"><a name="l00955"></a><span class="lineno"> 955</span>  <span class="comment">/* Matrox G200 has issues with our mipmapping code. Use GLU if we</span></div><div class="line"><a name="l00956"></a><span class="lineno"> 956</span> <span class="comment"> * can.</span></div><div class="line"><a name="l00957"></a><span class="lineno"> 957</span> <span class="comment"> */</span></div><div class="line"><a name="l00958"></a><span class="lineno"> 958</span>  TRACE(PREFIX_I <span class="stringliteral">"do_texture_upload: Using GLU for mipmaps.\n"</span>);</div><div class="line"><a name="l00959"></a><span class="lineno"> 959</span>  glPixelStorei(GL_UNPACK_ROW_LENGTH, bmp->h > 1</div><div class="line"><a name="l00960"></a><span class="lineno"> 960</span>  ? (bmp->line[1] - bmp->line[0]) / bytes_per_pixel</div><div class="line"><a name="l00961"></a><span class="lineno"> 961</span>  : bmp->w);</div><div class="line"><a name="l00962"></a><span class="lineno"> 962</span>  glPixelStorei(GL_UNPACK_ROW_LENGTH,</div><div class="line"><a name="l00963"></a><span class="lineno"> 963</span>  (bmp->line[1] - bmp->line[0]) / bytes_per_pixel);</div><div class="line"><a name="l00964"></a><span class="lineno"> 964</span>  gluBuild2DMipmaps(GL_TEXTURE_2D, internal_format, bmp->w, bmp->h,</div><div class="line"><a name="l00965"></a><span class="lineno"> 965</span>  format, type, bmp->line[0]);</div><div class="line"><a name="l00966"></a><span class="lineno"> 966</span>  }</div><div class="line"><a name="l00967"></a><span class="lineno"> 967</span>  <span class="keywordflow">else</span> {</div><div class="line"><a name="l00968"></a><span class="lineno"> 968</span>  <span class="keywordtype">int</span> w = bmp->w;</div><div class="line"><a name="l00969"></a><span class="lineno"> 969</span>  <span class="keywordtype">int</span> h = bmp->h;</div><div class="line"><a name="l00970"></a><span class="lineno"> 970</span>  <span class="keywordtype">int</span> depth = bitmap_color_depth(bmp);</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>  <span class="comment">/* The driver can't generate mipmaps for us. We can't rely on GLU</span></div><div class="line"><a name="l00973"></a><span class="lineno"> 973</span> <span class="comment"> * since the Win32 version doesn't support any of the new pixel</span></div><div class="line"><a name="l00974"></a><span class="lineno"> 974</span> <span class="comment"> * formats. Instead, we'll use our own downsampler (which only</span></div><div class="line"><a name="l00975"></a><span class="lineno"> 975</span> <span class="comment"> * has to work on Allegro BITMAPs)</span></div><div class="line"><a name="l00976"></a><span class="lineno"> 976</span> <span class="comment"> */</span></div><div class="line"><a name="l00977"></a><span class="lineno"> 977</span>  BITMAP *temp = create_bitmap_ex(depth, w / 2, h / 2);</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>  <span class="comment">/* We need to generate mipmaps up to 1x1 - compute the number</span></div><div class="line"><a name="l00980"></a><span class="lineno"> 980</span> <span class="comment"> * of levels we need.</span></div><div class="line"><a name="l00981"></a><span class="lineno"> 981</span> <span class="comment"> */</span></div><div class="line"><a name="l00982"></a><span class="lineno"> 982</span>  <span class="keywordtype">int</span> num_levels = log2i(MAX(bmp->w, bmp->h));</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="keywordtype">int</span> i, x, y;</div><div class="line"><a name="l00985"></a><span class="lineno"> 985</span> </div><div class="line"><a name="l00986"></a><span class="lineno"> 986</span>  BITMAP *src, *dest;</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>  TRACE(PREFIX_I <span class="stringliteral">"do_texture_upload: Using Allegro for "</span></div><div class="line"><a name="l00989"></a><span class="lineno"> 989</span>  <span class="stringliteral">"mipmap generation.\n"</span>);</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>  <span class="keywordflow">if</span> (!temp) {</div><div class="line"><a name="l00992"></a><span class="lineno"> 992</span>  TRACE(PREFIX_E <span class="stringliteral">"do_texture_upload: Unable to create "</span></div><div class="line"><a name="l00993"></a><span class="lineno"> 993</span>  <span class="stringliteral">"temporary bitmap sized %ix%ix%i for mipmap generation!"</span>,</div><div class="line"><a name="l00994"></a><span class="lineno"> 994</span>  w / 2, h / 2, depth);</div><div class="line"><a name="l00995"></a><span class="lineno"> 995</span>  tex = 0;</div><div class="line"><a name="l00996"></a><span class="lineno"> 996</span>  <span class="keywordflow">goto</span> end;</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> </div><div class="line"><a name="l00999"></a><span class="lineno"> 999</span>  src = bmp;</div><div class="line"><a name="l01000"></a><span class="lineno"> 1000</span>  dest = temp;</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>  <span class="keywordflow">for</span> (i = 1; i <= num_levels; i++) {</div><div class="line"><a name="l01003"></a><span class="lineno"> 1003</span> </div><div class="line"><a name="l01004"></a><span class="lineno"> 1004</span>  <span class="keywordflow">for</span> (y = 0; y < h; y += 2) {</div><div class="line"><a name="l01005"></a><span class="lineno"> 1005</span>  <span class="keywordflow">for</span> (x = 0; x < w; x += 2) {</div><div class="line"><a name="l01006"></a><span class="lineno"> 1006</span> </div><div class="line"><a name="l01007"></a><span class="lineno"> 1007</span>  <span class="keywordtype">int</span> r, g, b, a;</div><div class="line"><a name="l01008"></a><span class="lineno"> 1008</span>  <span class="keywordtype">int</span> pix[4];</div><div class="line"><a name="l01009"></a><span class="lineno"> 1009</span>  <span class="keywordtype">int</span> avg;</div><div class="line"><a name="l01010"></a><span class="lineno"> 1010</span>  </div><div class="line"><a name="l01011"></a><span class="lineno"> 1011</span>  pix[0] = getpixel(src, x, y);</div><div class="line"><a name="l01012"></a><span class="lineno"> 1012</span>  pix[1] = getpixel(src, x + 1, y);</div><div class="line"><a name="l01013"></a><span class="lineno"> 1013</span>  pix[2] = getpixel(src, x, y + 1);</div><div class="line"><a name="l01014"></a><span class="lineno"> 1014</span>  pix[3] = getpixel(src, x + 1, y + 1);</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> (w == 1) {</div><div class="line"><a name="l01017"></a><span class="lineno"> 1017</span>  pix[1] = pix[0];</div><div class="line"><a name="l01018"></a><span class="lineno"> 1018</span>  pix[3] = pix[2];</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">if</span> (h == 1) {</div><div class="line"><a name="l01021"></a><span class="lineno"> 1021</span>  pix[2] = pix[0];</div><div class="line"><a name="l01022"></a><span class="lineno"> 1022</span>  pix[3] = pix[1];</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="keywordflow">if</span> (flags & <a class="code" href="group__texture.html#gad67cfdfd21ef2cae75b03cb871e57f4a">AGL_TEXTURE_ALPHA_ONLY</a>) {</div><div class="line"><a name="l01026"></a><span class="lineno"> 1026</span>  avg = (pix[0] + pix[1] + pix[2] + pix[3] + 2) / 4;</div><div class="line"><a name="l01027"></a><span class="lineno"> 1027</span>  }</div><div class="line"><a name="l01028"></a><span class="lineno"> 1028</span>  <span class="keywordflow">else</span> {</div><div class="line"><a name="l01029"></a><span class="lineno"> 1029</span>  r = (getr_depth(depth, pix[0])</div><div class="line"><a name="l01030"></a><span class="lineno"> 1030</span>  + getr_depth(depth, pix[1])</div><div class="line"><a name="l01031"></a><span class="lineno"> 1031</span>  + getr_depth(depth, pix[2])</div><div class="line"><a name="l01032"></a><span class="lineno"> 1032</span>  + getr_depth(depth, pix[3]) + 2) / 4;</div><div class="line"><a name="l01033"></a><span class="lineno"> 1033</span>  g = (getg_depth(depth, pix[0])</div><div class="line"><a name="l01034"></a><span class="lineno"> 1034</span>  + getg_depth(depth, pix[1])</div><div class="line"><a name="l01035"></a><span class="lineno"> 1035</span>  + getg_depth(depth, pix[2])</div><div class="line"><a name="l01036"></a><span class="lineno"> 1036</span>  + getg_depth(depth, pix[3]) + 2) / 4;</div><div class="line"><a name="l01037"></a><span class="lineno"> 1037</span>  b = (getb_depth(depth, pix[0])</div><div class="line"><a name="l01038"></a><span class="lineno"> 1038</span>  + getb_depth(depth, pix[1])</div><div class="line"><a name="l01039"></a><span class="lineno"> 1039</span>  + getb_depth(depth, pix[2])</div><div class="line"><a name="l01040"></a><span class="lineno"> 1040</span>  + getb_depth(depth, pix[3]) + 2) / 4;</div><div class="line"><a name="l01041"></a><span class="lineno"> 1041</span>  a = (geta_depth(depth, pix[0])</div><div class="line"><a name="l01042"></a><span class="lineno"> 1042</span>  + geta_depth(depth, pix[1])</div><div class="line"><a name="l01043"></a><span class="lineno"> 1043</span>  + geta_depth(depth, pix[2])</div><div class="line"><a name="l01044"></a><span class="lineno"> 1044</span>  + geta_depth(depth, pix[3]) + 2) / 4;</div><div class="line"><a name="l01045"></a><span class="lineno"> 1045</span> </div><div class="line"><a name="l01046"></a><span class="lineno"> 1046</span>  avg = makeacol_depth(depth, r, g, b, a);</div><div class="line"><a name="l01047"></a><span class="lineno"> 1047</span>  }</div><div class="line"><a name="l01048"></a><span class="lineno"> 1048</span> </div><div class="line"><a name="l01049"></a><span class="lineno"> 1049</span>  putpixel(dest, x / 2, y / 2, avg);</div><div class="line"><a name="l01050"></a><span class="lineno"> 1050</span>  }</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>  src = temp;</div><div class="line"><a name="l01053"></a><span class="lineno"> 1053</span> </div><div class="line"><a name="l01054"></a><span class="lineno"> 1054</span>  <span class="comment">/* Note - we round down; we're still compatible with</span></div><div class="line"><a name="l01055"></a><span class="lineno"> 1055</span> <span class="comment"> * ARB_texture_non_power_of_two.</span></div><div class="line"><a name="l01056"></a><span class="lineno"> 1056</span> <span class="comment"> */</span></div><div class="line"><a name="l01057"></a><span class="lineno"> 1057</span>  w = MAX(w / 2, 1);</div><div class="line"><a name="l01058"></a><span class="lineno"> 1058</span>  h = MAX(h / 2, 1);</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>  TRACE(PREFIX_I <span class="stringliteral">"do_texture_upload: Unpack row length: %li.\n"</span>,</div><div class="line"><a name="l01061"></a><span class="lineno"> 1061</span>  (temp->h > 1)</div><div class="line"><a name="l01062"></a><span class="lineno"> 1062</span>  ? (<span class="keywordtype">long</span> <span class="keywordtype">int</span>)((temp->line[1] - temp->line[0]) / bytes_per_pixel)</div><div class="line"><a name="l01063"></a><span class="lineno"> 1063</span>  : temp->w);</div><div class="line"><a name="l01064"></a><span class="lineno"> 1064</span> </div><div class="line"><a name="l01065"></a><span class="lineno"> 1065</span>  glPixelStorei(GL_UNPACK_ROW_LENGTH, temp->h > 1</div><div class="line"><a name="l01066"></a><span class="lineno"> 1066</span>  ? (temp->line[1] - temp->line[0]) / bytes_per_pixel</div><div class="line"><a name="l01067"></a><span class="lineno"> 1067</span>  : temp->w); </div><div class="line"><a name="l01068"></a><span class="lineno"> 1068</span> </div><div class="line"><a name="l01069"></a><span class="lineno"> 1069</span>  glTexImage2D(GL_TEXTURE_2D, i, internal_format,</div><div class="line"><a name="l01070"></a><span class="lineno"> 1070</span>  w, h, 0, format, type, temp->line[0]);</div><div class="line"><a name="l01071"></a><span class="lineno"> 1071</span> </div><div class="line"><a name="l01072"></a><span class="lineno"> 1072</span>  TRACE(PREFIX_I <span class="stringliteral">"do_texture_upload: Mipmap level: %i, "</span></div><div class="line"><a name="l01073"></a><span class="lineno"> 1073</span>  <span class="stringliteral">"size: %i x %i\n"</span>, i, w, h);</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>  TRACE(PREFIX_I <span class="stringliteral">"do_texture_upload: Uploaded texture: level %i, "</span></div><div class="line"><a name="l01076"></a><span class="lineno"> 1076</span>  <span class="stringliteral">"internalformat: %s, %ix%i, format: 0x%x, type: 0x%x."</span></div><div class="line"><a name="l01077"></a><span class="lineno"> 1077</span>  <span class="stringliteral">"\n"</span>, i, __allegro_gl_get_format_description(internal_format),</div><div class="line"><a name="l01078"></a><span class="lineno"> 1078</span>  bmp->w, bmp->h, format, 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> </div><div class="line"><a name="l01081"></a><span class="lineno"> 1081</span>  destroy_bitmap(temp);</div><div class="line"><a name="l01082"></a><span class="lineno"> 1082</span>  }</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> </div><div class="line"><a name="l01085"></a><span class="lineno"> 1085</span>  glPixelStorei(GL_UNPACK_ROW_LENGTH, (bmp->h > 1)</div><div class="line"><a name="l01086"></a><span class="lineno"> 1086</span>  ? (bmp->line[1] - bmp->line[0]) / bytes_per_pixel</div><div class="line"><a name="l01087"></a><span class="lineno"> 1087</span>  : bmp->w);</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>  TRACE(PREFIX_I <span class="stringliteral">"do_texture_upload: Unpack row length: %li.\n"</span>,</div><div class="line"><a name="l01090"></a><span class="lineno"> 1090</span>  (bmp->h > 1) ? (<span class="keywordtype">long</span> <span class="keywordtype">int</span>)((bmp->line[1] - bmp->line[0]) / bytes_per_pixel)</div><div class="line"><a name="l01091"></a><span class="lineno"> 1091</span>  : bmp->w);</div><div class="line"><a name="l01092"></a><span class="lineno"> 1092</span> </div><div class="line"><a name="l01093"></a><span class="lineno"> 1093</span>  <span class="comment">/* Upload the base texture */</span></div><div class="line"><a name="l01094"></a><span class="lineno"> 1094</span>  glGetError();</div><div class="line"><a name="l01095"></a><span class="lineno"> 1095</span>  glTexImage2D(GL_TEXTURE_2D, 0, internal_format,</div><div class="line"><a name="l01096"></a><span class="lineno"> 1096</span>  bmp->w, bmp->h, 0, format, type, bmp->line[0]);</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>  TRACE(PREFIX_I <span class="stringliteral">"do_texture_upload: Uploaded texture: level 0, "</span></div><div class="line"><a name="l01099"></a><span class="lineno"> 1099</span>  <span class="stringliteral">"internalformat: %s, %ix%i, format: 0x%x, type: 0x%x.\n"</span>,</div><div class="line"><a name="l01100"></a><span class="lineno"> 1100</span>  __allegro_gl_get_format_description(internal_format),</div><div class="line"><a name="l01101"></a><span class="lineno"> 1101</span>  bmp->w, bmp->h, format, type);</div><div class="line"><a name="l01102"></a><span class="lineno"> 1102</span>  </div><div class="line"><a name="l01103"></a><span class="lineno"> 1103</span>  TRACE(PREFIX_I <span class="stringliteral">"do_texture_upload: GL Error code: 0x%x\n"</span>, glGetError());</div><div class="line"><a name="l01104"></a><span class="lineno"> 1104</span> </div><div class="line"><a name="l01105"></a><span class="lineno"> 1105</span>  <span class="keywordflow">if</span> (!(flags & AGL_TEXTURE_MIPMAP)) {</div><div class="line"><a name="l01106"></a><span class="lineno"> 1106</span>  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);</div><div class="line"><a name="l01107"></a><span class="lineno"> 1107</span>  }</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> end:</div><div class="line"><a name="l01110"></a><span class="lineno"> 1110</span>  <span class="comment">/* Restore state */</span></div><div class="line"><a name="l01111"></a><span class="lineno"> 1111</span>  glPixelStorei(GL_UNPACK_ROW_LENGTH, saved_row_length);</div><div class="line"><a name="l01112"></a><span class="lineno"> 1112</span>  glPixelStorei(GL_UNPACK_ALIGNMENT, saved_alignment);</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="keywordflow">return</span> tex;</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> </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> </div><div class="line"><a name="l01119"></a><span class="lineno"> 1119</span> <span class="comment">/* GLuint allegro_gl_make_texture_ex(int flag, BITMAP *bmp, GLint internal_format) */</span></div><div class="line"><a name="l01165"></a><span class="lineno"><a class="line" href="group__texture.html#gaf3a48c555068e7051171255c1011150a"> 1165</a></span> GLuint <a class="code" href="group__texture.html#gaf3a48c555068e7051171255c1011150a">allegro_gl_make_texture_ex</a>(<span class="keywordtype">int</span> flags, BITMAP *bmp, GLint internal_format)</div><div class="line"><a name="l01166"></a><span class="lineno"> 1166</span> {</div><div class="line"><a name="l01167"></a><span class="lineno"> 1167</span>  GLuint tex = 0, ret = 0;</div><div class="line"><a name="l01168"></a><span class="lineno"> 1168</span>  BITMAP *temp = NULL;</div><div class="line"><a name="l01169"></a><span class="lineno"> 1169</span>  GLint type;</div><div class="line"><a name="l01170"></a><span class="lineno"> 1170</span>  GLint format;</div><div class="line"><a name="l01171"></a><span class="lineno"> 1171</span>  GLint old_tex;</div><div class="line"><a name="l01172"></a><span class="lineno"> 1172</span> </div><div class="line"><a name="l01173"></a><span class="lineno"> 1173</span>  <span class="comment">/* Print the parameters */</span></div><div class="line"><a name="l01174"></a><span class="lineno"> 1174</span> <span class="preprocessor">#ifdef DEBUGMODE</span></div><div class="line"><a name="l01175"></a><span class="lineno"> 1175</span>  <span class="keywordtype">char</span> buf[1024] = <span class="stringliteral">""</span>;</div><div class="line"><a name="l01176"></a><span class="lineno"> 1176</span> <span class="preprocessor"># define PFLAG(name) if (flags & name) strcat(buf, #name "|");</span></div><div class="line"><a name="l01177"></a><span class="lineno"> 1177</span>  PFLAG(<a class="code" href="group__texture.html#gabaf179e577a9328a751e92e3603f0746">AGL_TEXTURE_MIPMAP</a>);</div><div class="line"><a name="l01178"></a><span class="lineno"> 1178</span>  PFLAG(<a class="code" href="group__texture.html#ga8cc859eadf1610b424cd9188e716f432">AGL_TEXTURE_HAS_ALPHA</a>);</div><div class="line"><a name="l01179"></a><span class="lineno"> 1179</span>  PFLAG(<a class="code" href="group__texture.html#gadeffe4feb290278035beacedb284a010">AGL_TEXTURE_FLIP</a>);</div><div class="line"><a name="l01180"></a><span class="lineno"> 1180</span>  PFLAG(<a class="code" href="group__texture.html#gaba184d573c65f33b35d1d57936607d08">AGL_TEXTURE_MASKED</a>);</div><div class="line"><a name="l01181"></a><span class="lineno"> 1181</span>  PFLAG(<a class="code" href="group__texture.html#gaa8b7246edc7ec019ec3b434eb0cacdf2">AGL_TEXTURE_RESCALE</a>);</div><div class="line"><a name="l01182"></a><span class="lineno"> 1182</span>  PFLAG(<a class="code" href="group__texture.html#gad67cfdfd21ef2cae75b03cb871e57f4a">AGL_TEXTURE_ALPHA_ONLY</a>);</div><div class="line"><a name="l01183"></a><span class="lineno"> 1183</span> <span class="preprocessor"># undef PFLAG</span></div><div class="line"><a name="l01184"></a><span class="lineno"> 1184</span> </div><div class="line"><a name="l01185"></a><span class="lineno"> 1185</span>  TRACE(PREFIX_I <span class="stringliteral">"make_texture_ex: flags: %s, bitmap %ix%i, %i bpp.\n"</span>, buf,</div><div class="line"><a name="l01186"></a><span class="lineno"> 1186</span>  bmp ? bmp->w : 0, bmp ? bmp->h : 0,</div><div class="line"><a name="l01187"></a><span class="lineno"> 1187</span>  bmp ? bitmap_color_depth(bmp) : 0);</div><div class="line"><a name="l01188"></a><span class="lineno"> 1188</span>  <span class="keywordflow">if</span> (internal_format == -1) {</div><div class="line"><a name="l01189"></a><span class="lineno"> 1189</span>  TRACE(PREFIX_I <span class="stringliteral">"internalformat: AUTO\n"</span>);</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>  <span class="keywordflow">else</span> {</div><div class="line"><a name="l01192"></a><span class="lineno"> 1192</span>  TRACE(PREFIX_I <span class="stringliteral">"internalformat: %s\n"</span>,</div><div class="line"><a name="l01193"></a><span class="lineno"> 1193</span>  __allegro_gl_get_format_description(internal_format));</div><div class="line"><a name="l01194"></a><span class="lineno"> 1194</span>  }</div><div class="line"><a name="l01195"></a><span class="lineno"> 1195</span> <span class="preprocessor">#endif </span></div><div class="line"><a name="l01196"></a><span class="lineno"> 1196</span> </div><div class="line"><a name="l01197"></a><span class="lineno"> 1197</span>  <span class="comment">/* Basic parameter checks */</span></div><div class="line"><a name="l01198"></a><span class="lineno"> 1198</span>  <span class="keywordflow">if</span> (!__allegro_gl_valid_context)</div><div class="line"><a name="l01199"></a><span class="lineno"> 1199</span>  <span class="keywordflow">return</span> 0;</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>  <span class="keywordflow">if</span> (!bmp) {</div><div class="line"><a name="l01202"></a><span class="lineno"> 1202</span>  <span class="keywordflow">return</span> 0;</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> </div><div class="line"><a name="l01205"></a><span class="lineno"> 1205</span>  glGetIntegerv(GL_TEXTURE_2D_BINDING, &old_tex);</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>  <span class="comment">/* Voodoo cards don't seem to support mipmaps for textures over 32x32...</span></div><div class="line"><a name="l01208"></a><span class="lineno"> 1208</span> <span class="comment"> */</span></div><div class="line"><a name="l01209"></a><span class="lineno"> 1209</span>  <span class="keywordflow">if</span> ((bmp->w > 32 || bmp->h > 32) && (allegro_gl_info.is_voodoo)) {</div><div class="line"><a name="l01210"></a><span class="lineno"> 1210</span>  <span class="comment">/* Disable mipmapping if the user didn't allow us to rescale */</span></div><div class="line"><a name="l01211"></a><span class="lineno"> 1211</span>  <span class="keywordflow">if</span> (!(flags & <a class="code" href="group__texture.html#gaa8b7246edc7ec019ec3b434eb0cacdf2">AGL_TEXTURE_RESCALE</a>)) {</div><div class="line"><a name="l01212"></a><span class="lineno"> 1212</span>  TRACE(PREFIX_I <span class="stringliteral">"make_texture_ex: Voodoo card detected && texture "</span></div><div class="line"><a name="l01213"></a><span class="lineno"> 1213</span>  <span class="stringliteral">"size > 32 texels && no rescaling. Disabling mipmaps.\n"</span>);</div><div class="line"><a name="l01214"></a><span class="lineno"> 1214</span>  flags &= ~<a class="code" href="group__texture.html#gabaf179e577a9328a751e92e3603f0746">AGL_TEXTURE_MIPMAP</a>;</div><div class="line"><a name="l01215"></a><span class="lineno"> 1215</span>  }</div><div class="line"><a name="l01216"></a><span class="lineno"> 1216</span>  }</div><div class="line"><a name="l01217"></a><span class="lineno"> 1217</span> </div><div class="line"><a name="l01218"></a><span class="lineno"> 1218</span>  <span class="comment">/* Check the maximum texture size */</span></div><div class="line"><a name="l01219"></a><span class="lineno"> 1219</span>  <span class="keywordflow">if</span> (bmp->w > allegro_gl_info.max_texture_size</div><div class="line"><a name="l01220"></a><span class="lineno"> 1220</span>  || bmp->h > allegro_gl_info.max_texture_size) {</div><div class="line"><a name="l01221"></a><span class="lineno"> 1221</span>  <span class="keywordflow">if</span> ((flags & <a class="code" href="group__texture.html#gaa8b7246edc7ec019ec3b434eb0cacdf2">AGL_TEXTURE_RESCALE</a>) == 0) {</div><div class="line"><a name="l01222"></a><span class="lineno"> 1222</span>  TRACE(PREFIX_I <span class="stringliteral">"make_texture_ex: Max texture size exceeded but no "</span></div><div class="line"><a name="l01223"></a><span class="lineno"> 1223</span>  <span class="stringliteral">"rescaling allowed. Returning 0 (unsupported).\n"</span>);</div><div class="line"><a name="l01224"></a><span class="lineno"> 1224</span>  <span class="keywordflow">return</span> 0;</div><div class="line"><a name="l01225"></a><span class="lineno"> 1225</span>  }</div><div class="line"><a name="l01226"></a><span class="lineno"> 1226</span>  }</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="comment">/* Check power-of-2 */</span></div><div class="line"><a name="l01229"></a><span class="lineno"> 1229</span>  <span class="keywordflow">if</span> (((bmp->w & (bmp->w - 1)) || (bmp->h & (bmp->h - 1)))</div><div class="line"><a name="l01230"></a><span class="lineno"> 1230</span>  && !(flags & <a class="code" href="group__texture.html#gaa8b7246edc7ec019ec3b434eb0cacdf2">AGL_TEXTURE_RESCALE</a>)</div><div class="line"><a name="l01231"></a><span class="lineno"> 1231</span>  && !<a class="code" href="group__extensions.html#ga7492f6f6acc608789210560ee63e5436">allegro_gl_extensions_GL</a>.ARB_texture_non_power_of_two) {</div><div class="line"><a name="l01232"></a><span class="lineno"> 1232</span>  TRACE(PREFIX_I <span class="stringliteral">"make_texture_ex: Non-power-of-2 sized bitmap provided, "</span></div><div class="line"><a name="l01233"></a><span class="lineno"> 1233</span>  <span class="stringliteral">"no rescaling allowed, and ARB_texture_non_power_of_two "</span></div><div class="line"><a name="l01234"></a><span class="lineno"> 1234</span>  <span class="stringliteral">"unsupported. Returning 0 (unsupported).\n"</span>);</div><div class="line"><a name="l01235"></a><span class="lineno"> 1235</span>  <span class="keywordflow">return</span> 0;</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>  </div><div class="line"><a name="l01239"></a><span class="lineno"> 1239</span>  <span class="comment">/* Get OpenGL format and type for this pixel data */</span></div><div class="line"><a name="l01240"></a><span class="lineno"> 1240</span>  format = __allegro_gl_get_bitmap_color_format(bmp, flags);</div><div class="line"><a name="l01241"></a><span class="lineno"> 1241</span>  type = __allegro_gl_get_bitmap_type(bmp, flags);</div><div class="line"><a name="l01242"></a><span class="lineno"> 1242</span>  </div><div class="line"><a name="l01243"></a><span class="lineno"> 1243</span>  <span class="keywordflow">if</span> (flags & <a class="code" href="group__texture.html#gad67cfdfd21ef2cae75b03cb871e57f4a">AGL_TEXTURE_ALPHA_ONLY</a>) {</div><div class="line"><a name="l01244"></a><span class="lineno"> 1244</span>  type = GL_UNSIGNED_BYTE;</div><div class="line"><a name="l01245"></a><span class="lineno"> 1245</span>  <span class="keywordflow">if</span> (internal_format == GL_ALPHA || internal_format == GL_ALPHA4</div><div class="line"><a name="l01246"></a><span class="lineno"> 1246</span>  || internal_format == GL_ALPHA8) {</div><div class="line"><a name="l01247"></a><span class="lineno"> 1247</span>  format = GL_ALPHA;</div><div class="line"><a name="l01248"></a><span class="lineno"> 1248</span>  }</div><div class="line"><a name="l01249"></a><span class="lineno"> 1249</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (internal_format == GL_INTENSITY</div><div class="line"><a name="l01250"></a><span class="lineno"> 1250</span>  || internal_format == GL_INTENSITY4</div><div class="line"><a name="l01251"></a><span class="lineno"> 1251</span>  || internal_format == GL_INTENSITY8) {</div><div class="line"><a name="l01252"></a><span class="lineno"> 1252</span>  format = GL_RED;</div><div class="line"><a name="l01253"></a><span class="lineno"> 1253</span>  }</div><div class="line"><a name="l01254"></a><span class="lineno"> 1254</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (internal_format == GL_LUMINANCE</div><div class="line"><a name="l01255"></a><span class="lineno"> 1255</span>  || internal_format == GL_LUMINANCE4</div><div class="line"><a name="l01256"></a><span class="lineno"> 1256</span>  || internal_format == GL_LUMINANCE8) {</div><div class="line"><a name="l01257"></a><span class="lineno"> 1257</span>  format = GL_LUMINANCE;</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> </div><div class="line"><a name="l01260"></a><span class="lineno"> 1260</span>  <span class="comment">/* Alpha bitmaps must be 8-bpp */</span></div><div class="line"><a name="l01261"></a><span class="lineno"> 1261</span>  <span class="keywordflow">if</span> (bitmap_color_depth(bmp) != 8) {</div><div class="line"><a name="l01262"></a><span class="lineno"> 1262</span>  <span class="keywordflow">return</span> 0;</div><div class="line"><a name="l01263"></a><span class="lineno"> 1263</span>  }</div><div class="line"><a name="l01264"></a><span class="lineno"> 1264</span>  }</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> (flags & <a class="code" href="group__texture.html#gaba184d573c65f33b35d1d57936607d08">AGL_TEXTURE_MASKED</a>) {</div><div class="line"><a name="l01267"></a><span class="lineno"> 1267</span>  flags |= AGL_TEXTURE_FORCE_ALPHA_INTERNAL;</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>  TRACE(PREFIX_I <span class="stringliteral">"make_texture_ex: Preselected texture format: %s, "</span></div><div class="line"><a name="l01271"></a><span class="lineno"> 1271</span>  <span class="stringliteral">"type: 0x%x\n"</span>, __allegro_gl_get_format_description(format), type);</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>  <span class="comment">/* Munge the bitmap if needed (rescaling, alpha channel, etc) */</span></div><div class="line"><a name="l01274"></a><span class="lineno"> 1274</span>  temp = __allegro_gl_munge_bitmap(flags, bmp, 0, 0, bmp->w, bmp->h,</div><div class="line"><a name="l01275"></a><span class="lineno"> 1275</span>  &type, &format);</div><div class="line"><a name="l01276"></a><span class="lineno"> 1276</span>  <span class="keywordflow">if</span> (temp) {</div><div class="line"><a name="l01277"></a><span class="lineno"> 1277</span>  bmp = temp;</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="keywordflow">if</span> (internal_format == -1) {</div><div class="line"><a name="l01281"></a><span class="lineno"> 1281</span>  internal_format = __allegro_gl_get_texture_format_ex(bmp, flags);</div><div class="line"><a name="l01282"></a><span class="lineno"> 1282</span>  TRACE(PREFIX_I <span class="stringliteral">"make_texture_ex: Picked internalformat: %s\n"</span>,</div><div class="line"><a name="l01283"></a><span class="lineno"> 1283</span>  __allegro_gl_get_format_description(internal_format));</div><div class="line"><a name="l01284"></a><span class="lineno"> 1284</span>  }</div><div class="line"><a name="l01285"></a><span class="lineno"> 1285</span> </div><div class="line"><a name="l01286"></a><span class="lineno"> 1286</span>  <span class="keywordflow">if</span> (internal_format == -1) {</div><div class="line"><a name="l01287"></a><span class="lineno"> 1287</span>  TRACE(PREFIX_E <span class="stringliteral">"make_texture_ex: Invalid internal format!: "</span></div><div class="line"><a name="l01288"></a><span class="lineno"> 1288</span>  <span class="stringliteral">"%s\n"</span>, __allegro_gl_get_format_description(internal_format));</div><div class="line"><a name="l01289"></a><span class="lineno"> 1289</span>  <span class="keywordflow">goto</span> end;</div><div class="line"><a name="l01290"></a><span class="lineno"> 1290</span>  }</div><div class="line"><a name="l01291"></a><span class="lineno"> 1291</span>  </div><div class="line"><a name="l01292"></a><span class="lineno"> 1292</span>  TRACE(PREFIX_I <span class="stringliteral">"make_texture_ex: dest format=%s, source format=%s, "</span></div><div class="line"><a name="l01293"></a><span class="lineno"> 1293</span>  <span class="stringliteral">"type=0x%x\n"</span>, __allegro_gl_get_format_description(internal_format),</div><div class="line"><a name="l01294"></a><span class="lineno"> 1294</span>  __allegro_gl_get_format_description(format), (<span class="keywordtype">int</span>)type);</div><div class="line"><a name="l01295"></a><span class="lineno"> 1295</span> </div><div class="line"><a name="l01296"></a><span class="lineno"> 1296</span>  </div><div class="line"><a name="l01297"></a><span class="lineno"> 1297</span>  <span class="comment">/* ATI Radeon 7000 inverts R and B components when generating mipmaps and</span></div><div class="line"><a name="l01298"></a><span class="lineno"> 1298</span> <span class="comment"> * the internal format is GL_RGB8, but only on mipmaps. Instead, we'll use</span></div><div class="line"><a name="l01299"></a><span class="lineno"> 1299</span> <span class="comment"> * GL_RGBA8. This works for bitmaps of depth <= 24. For 32-bpp bitmaps,</span></div><div class="line"><a name="l01300"></a><span class="lineno"> 1300</span> <span class="comment"> * some additional tricks are needed: We must fill in alpha with 255.</span></div><div class="line"><a name="l01301"></a><span class="lineno"> 1301</span> <span class="comment"> */</span></div><div class="line"><a name="l01302"></a><span class="lineno"> 1302</span>  <span class="keywordflow">if</span> (allegro_gl_info.is_ati_radeon_7000 && (flags & <a class="code" href="group__texture.html#gabaf179e577a9328a751e92e3603f0746">AGL_TEXTURE_MIPMAP</a>)</div><div class="line"><a name="l01303"></a><span class="lineno"> 1303</span>  && internal_format == GL_RGB8</div><div class="line"><a name="l01304"></a><span class="lineno"> 1304</span>  && <a class="code" href="group__extensions.html#ga7492f6f6acc608789210560ee63e5436">allegro_gl_extensions_GL</a>.SGIS_generate_mipmap) {</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="keywordtype">int</span> i, j;</div><div class="line"><a name="l01307"></a><span class="lineno"> 1307</span>  <span class="keywordtype">int</span> depth = bitmap_color_depth(bmp);</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>  TRACE(PREFIX_I <span class="stringliteral">"make_texture_ex: ATI Radeon 7000 detected, mipmapping "</span></div><div class="line"><a name="l01310"></a><span class="lineno"> 1310</span>  <span class="stringliteral">"used, SGIS_generate_mipmap available and selected "</span></div><div class="line"><a name="l01311"></a><span class="lineno"> 1311</span>  <span class="stringliteral">"internalformat is GL_RGB8 but format is GL_RGBA. Working around "</span></div><div class="line"><a name="l01312"></a><span class="lineno"> 1312</span>  <span class="stringliteral">"ATI driver bug by upgrading bitmap to 32-bpp and using GL_RGBA8 "</span></div><div class="line"><a name="l01313"></a><span class="lineno"> 1313</span>  <span class="stringliteral">"instead.\n"</span>);</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> (depth == 32) {</div><div class="line"><a name="l01316"></a><span class="lineno"> 1316</span> </div><div class="line"><a name="l01317"></a><span class="lineno"> 1317</span>  <span class="comment">/* Create temp bitmap if not already there */</span></div><div class="line"><a name="l01318"></a><span class="lineno"> 1318</span>  <span class="keywordflow">if</span> (!temp) {</div><div class="line"><a name="l01319"></a><span class="lineno"> 1319</span>  temp = create_bitmap_ex(depth, bmp->w, bmp->h);</div><div class="line"><a name="l01320"></a><span class="lineno"> 1320</span>  <span class="keywordflow">if</span> (!temp) {</div><div class="line"><a name="l01321"></a><span class="lineno"> 1321</span>  TRACE(PREFIX_E <span class="stringliteral">"make_texture_ex: Unable to allocate "</span></div><div class="line"><a name="l01322"></a><span class="lineno"> 1322</span>  <span class="stringliteral">"memory for temporary bitmap (Radeon 7000 path)!\n"</span>);</div><div class="line"><a name="l01323"></a><span class="lineno"> 1323</span>  <span class="keywordflow">goto</span> end;</div><div class="line"><a name="l01324"></a><span class="lineno"> 1324</span>  }</div><div class="line"><a name="l01325"></a><span class="lineno"> 1325</span>  blit(bmp, temp, 0, 0, 0, 0, bmp->w, bmp->h);</div><div class="line"><a name="l01326"></a><span class="lineno"> 1326</span>  bmp = temp;</div><div class="line"><a name="l01327"></a><span class="lineno"> 1327</span>  }</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>  <span class="comment">/* Slow path, until ATI finally gets around to fixing their</span></div><div class="line"><a name="l01330"></a><span class="lineno"> 1330</span> <span class="comment"> * drivers.</span></div><div class="line"><a name="l01331"></a><span class="lineno"> 1331</span> <span class="comment"> *</span></div><div class="line"><a name="l01332"></a><span class="lineno"> 1332</span> <span class="comment"> * Note: If destination internal format was GL_RGBx, then no masking</span></div><div class="line"><a name="l01333"></a><span class="lineno"> 1333</span> <span class="comment"> * code is needed.</span></div><div class="line"><a name="l01334"></a><span class="lineno"> 1334</span> <span class="comment"> */</span></div><div class="line"><a name="l01335"></a><span class="lineno"> 1335</span>  <span class="keywordflow">for</span> (j = 0; j < bmp->h; j++) {</div><div class="line"><a name="l01336"></a><span class="lineno"> 1336</span>  <span class="keywordflow">for</span> (i = 0; i < bmp->w; i++) {</div><div class="line"><a name="l01337"></a><span class="lineno"> 1337</span>  <span class="keywordtype">int</span> pix = _getpixel32(bmp, i, j);</div><div class="line"><a name="l01338"></a><span class="lineno"> 1338</span>  _putpixel32(bmp, i, j,</div><div class="line"><a name="l01339"></a><span class="lineno"> 1339</span>  makeacol32(getr32(pix), getg32(pix), getb32(pix), 255));</div><div class="line"><a name="l01340"></a><span class="lineno"> 1340</span>  }</div><div class="line"><a name="l01341"></a><span class="lineno"> 1341</span>  }</div><div class="line"><a name="l01342"></a><span class="lineno"> 1342</span>  }</div><div class="line"><a name="l01343"></a><span class="lineno"> 1343</span>  internal_format = GL_RGBA8;</div><div class="line"><a name="l01344"></a><span class="lineno"> 1344</span>  }</div><div class="line"><a name="l01345"></a><span class="lineno"> 1345</span>  </div><div class="line"><a name="l01346"></a><span class="lineno"> 1346</span> </div><div class="line"><a name="l01347"></a><span class="lineno"> 1347</span>  <span class="comment">/* Generate the texture */</span></div><div class="line"><a name="l01348"></a><span class="lineno"> 1348</span>  glGenTextures(1, &tex);</div><div class="line"><a name="l01349"></a><span class="lineno"> 1349</span>  <span class="keywordflow">if</span> (!tex) {</div><div class="line"><a name="l01350"></a><span class="lineno"> 1350</span>  TRACE(PREFIX_E <span class="stringliteral">"make_texture_ex: Unable to create GL texture!\n"</span>);</div><div class="line"><a name="l01351"></a><span class="lineno"> 1351</span>  <span class="keywordflow">goto</span> end;</div><div class="line"><a name="l01352"></a><span class="lineno"> 1352</span>  }</div><div class="line"><a name="l01353"></a><span class="lineno"> 1353</span> </div><div class="line"><a name="l01354"></a><span class="lineno"> 1354</span>  ret = do_texture_upload(bmp, tex, internal_format, format, type, flags);</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> end:</div><div class="line"><a name="l01357"></a><span class="lineno"> 1357</span>  <span class="keywordflow">if</span> (temp) {</div><div class="line"><a name="l01358"></a><span class="lineno"> 1358</span>  destroy_bitmap(temp);</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> </div><div class="line"><a name="l01361"></a><span class="lineno"> 1361</span>  <span class="keywordflow">if</span> (!ret && tex) {</div><div class="line"><a name="l01362"></a><span class="lineno"> 1362</span>  glDeleteTextures(1, &tex);</div><div class="line"><a name="l01363"></a><span class="lineno"> 1363</span>  }</div><div class="line"><a name="l01364"></a><span class="lineno"> 1364</span> </div><div class="line"><a name="l01365"></a><span class="lineno"> 1365</span>  glBindTexture(GL_TEXTURE_2D, old_tex);</div><div class="line"><a name="l01366"></a><span class="lineno"> 1366</span> </div><div class="line"><a name="l01367"></a><span class="lineno"> 1367</span>  <span class="keywordflow">return</span> tex;</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> </div><div class="line"><a name="l01370"></a><span class="lineno"> 1370</span> </div><div class="line"><a name="l01371"></a><span class="lineno"> 1371</span> </div><div class="line"><a name="l01372"></a><span class="lineno"> 1372</span> </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="comment">/* GLuint allegro_gl_make_texture(BITMAP *bmp) */</span></div><div class="line"><a name="l01383"></a><span class="lineno"><a class="line" href="group__texture.html#gae071354f76bc28e1bafbd90bdecbc0c9"> 1383</a></span> GLuint <a class="code" href="group__texture.html#gae071354f76bc28e1bafbd90bdecbc0c9">allegro_gl_make_texture</a>(BITMAP *bmp) {</div><div class="line"><a name="l01384"></a><span class="lineno"> 1384</span>  </div><div class="line"><a name="l01385"></a><span class="lineno"> 1385</span>  <span class="keywordtype">int</span> flags = __allegro_gl_convert_flags(0);</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">return</span> <a class="code" href="group__texture.html#gaf3a48c555068e7051171255c1011150a">allegro_gl_make_texture_ex</a>(flags, bmp,</div><div class="line"><a name="l01388"></a><span class="lineno"> 1388</span>  allegro_gl_opengl_internal_texture_format);</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> </div><div class="line"><a name="l01392"></a><span class="lineno"> 1392</span> </div><div class="line"><a name="l01393"></a><span class="lineno"> 1393</span> <span class="comment">/* GLuint allegro_gl_make_masked_texture(BITMAP *bmp) */</span></div><div class="line"><a name="l01402"></a><span class="lineno"><a class="line" href="group__texture.html#gaeb33dfbbc1725f5132c10ac32ef6800d"> 1402</a></span> GLuint <a class="code" href="group__texture.html#gaeb33dfbbc1725f5132c10ac32ef6800d">allegro_gl_make_masked_texture</a>(BITMAP *bmp) {</div><div class="line"><a name="l01403"></a><span class="lineno"> 1403</span>  </div><div class="line"><a name="l01404"></a><span class="lineno"> 1404</span>  <span class="keywordtype">int</span> flags = __allegro_gl_convert_flags(<a class="code" href="group__texture.html#gaba184d573c65f33b35d1d57936607d08">AGL_TEXTURE_MASKED</a>);</div><div class="line"><a name="l01405"></a><span class="lineno"> 1405</span> </div><div class="line"><a name="l01406"></a><span class="lineno"> 1406</span>  <span class="keywordflow">return</span> <a class="code" href="group__texture.html#gaf3a48c555068e7051171255c1011150a">allegro_gl_make_texture_ex</a>(flags, bmp,</div><div class="line"><a name="l01407"></a><span class="lineno"> 1407</span>  allegro_gl_opengl_internal_texture_format);</div><div class="line"><a name="l01408"></a><span class="lineno"> 1408</span> }</div><div class="line"><a name="l01409"></a><span class="lineno"> 1409</span> </div><div class="line"><a name="l01410"></a><span class="lineno"> 1410</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> <span class="comment">/* GLenum allegro_gl_get_bitmap_type(BITMAP *bmp) */</span></div><div class="line"><a name="l01433"></a><span class="lineno"><a class="line" href="group__texture.html#ga59f7129dd541d2e5a291d36bf90b7289"> 1433</a></span> GLenum <a class="code" href="group__texture.html#ga59f7129dd541d2e5a291d36bf90b7289">allegro_gl_get_bitmap_type</a>(BITMAP *bmp) {</div><div class="line"><a name="l01434"></a><span class="lineno"> 1434</span> </div><div class="line"><a name="l01435"></a><span class="lineno"> 1435</span>  <span class="keywordtype">int</span> flags = __allegro_gl_convert_flags(0);</div><div class="line"><a name="l01436"></a><span class="lineno"> 1436</span>  <span class="keywordflow">return</span> __allegro_gl_get_bitmap_type(bmp, flags);</div><div class="line"><a name="l01437"></a><span class="lineno"> 1437</span> }</div><div class="line"><a name="l01438"></a><span class="lineno"> 1438</span> </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> </div><div class="line"><a name="l01441"></a><span class="lineno"> 1441</span> <span class="comment">/* GLenum allegro_gl_get_bitmap_color_format(BITMAP *bmp) */</span></div><div class="line"><a name="l01456"></a><span class="lineno"><a class="line" href="group__texture.html#ga83b2b13cb35dd4b4e9e874173a246581"> 1456</a></span> GLenum <a class="code" href="group__texture.html#ga83b2b13cb35dd4b4e9e874173a246581">allegro_gl_get_bitmap_color_format</a>(BITMAP *bmp) {</div><div class="line"><a name="l01457"></a><span class="lineno"> 1457</span> </div><div class="line"><a name="l01458"></a><span class="lineno"> 1458</span>  <span class="keywordtype">int</span> flags = __allegro_gl_convert_flags(0);</div><div class="line"><a name="l01459"></a><span class="lineno"> 1459</span>  <span class="keywordflow">return</span> __allegro_gl_get_bitmap_color_format(bmp, flags);</div><div class="line"><a name="l01460"></a><span class="lineno"> 1460</span> }</div><div class="line"><a name="l01461"></a><span class="lineno"> 1461</span> </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__texture_html_gaf3a48c555068e7051171255c1011150a"><div class="ttname"><a href="group__texture.html#gaf3a48c555068e7051171255c1011150a">allegro_gl_make_texture_ex</a></div><div class="ttdeci">GLuint allegro_gl_make_texture_ex(int flags, BITMAP *bmp, GLint internal_format)</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#l01165">texture.c:1165</a></div></div>
<div class="ttc" id="group__texture_html_ga2392fe7a8dd6db65532160821804aa68"><div class="ttname"><a href="group__texture.html#ga2392fe7a8dd6db65532160821804aa68">allegro_gl_get_texture_format</a></div><div class="ttdeci">GLint allegro_gl_get_texture_format(BITMAP *bmp)</div><div class="ttdoc">Returns the OpenGL internal texture format for this bitmap. </div><div class="ttdef"><b>Definition:</b> <a href="texture_8c_source.html#l00248">texture.c:248</a></div></div>
<div class="ttc" id="group__texture_html_ga1d88f4ebc7ed1ecd65640b72ea46a71e"><div class="ttname"><a href="group__texture.html#ga1d88f4ebc7ed1ecd65640b72ea46a71e">allegro_gl_use_alpha_channel</a></div><div class="ttdeci">int allegro_gl_use_alpha_channel(int enable)</div><div class="ttdoc">Tell AllegroGL to use Alpha channel or not when generating textures via its functions. </div><div class="ttdef"><b>Definition:</b> <a href="texture_8c_source.html#l00439">texture.c:439</a></div></div>
<div class="ttc" id="group__texture_html_gab5393ecc10a2a31da7eb80c889af89ac"><div class="ttname"><a href="group__texture.html#gab5393ecc10a2a31da7eb80c889af89ac">allegro_gl_use_mipmapping</a></div><div class="ttdeci">int allegro_gl_use_mipmapping(int enable)</div><div class="ttdoc">Tell AllegroGL to use Mipmapping or not when generating textures via its functions. </div><div class="ttdef"><b>Definition:</b> <a href="texture_8c_source.html#l00415">texture.c:415</a></div></div>
<div class="ttc" id="group__texture_html_gad67cfdfd21ef2cae75b03cb871e57f4a"><div class="ttname"><a href="group__texture.html#gad67cfdfd21ef2cae75b03cb871e57f4a">AGL_TEXTURE_ALPHA_ONLY</a></div><div class="ttdeci">#define AGL_TEXTURE_ALPHA_ONLY</div><div class="ttdoc">Tell AllegroGL that the specified BITMAP is an 8-bpp alpha-only BITMAP. </div><div class="ttdef"><b>Definition:</b> <a href="alleggl_8h_source.html#l00548">alleggl.h:548</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="group__texture_html_ga5d535e8af776dd449cc4755b9e3585b1"><div class="ttname"><a href="group__texture.html#ga5d535e8af776dd449cc4755b9e3585b1">allegro_gl_set_texture_format</a></div><div class="ttdeci">GLint allegro_gl_set_texture_format(GLint format)</div><div class="ttdoc">Sets the color format you&#39;d like OpenGL to use for its textures. </div><div class="ttdef"><b>Definition:</b> <a href="texture_8c_source.html#l00282">texture.c:282</a></div></div>
<div class="ttc" id="group__texture_html_ga6996c14538e18b1614f91d34b2d4d691"><div class="ttname"><a href="group__texture.html#ga6996c14538e18b1614f91d34b2d4d691">allegro_gl_check_texture</a></div><div class="ttdeci">int allegro_gl_check_texture(BITMAP *bmp)</div><div class="ttdoc">Checks whether the specified bitmap is of the proper size for texturing. </div><div class="ttdef"><b>Definition:</b> <a href="texture_8c_source.html#l00557">texture.c:557</a></div></div>
<div class="ttc" id="group__texture_html_ga3ec0a1c4c6656f13c8398bab7a1293f2"><div class="ttname"><a href="group__texture.html#ga3ec0a1c4c6656f13c8398bab7a1293f2">allegro_gl_flip_texture</a></div><div class="ttdeci">int allegro_gl_flip_texture(int enable)</div><div class="ttdoc">Tell AllegroGL to flip the texture vertically or not when generating textures via its functions...</div><div class="ttdef"><b>Definition:</b> <a href="texture_8c_source.html#l00464">texture.c:464</a></div></div>
<div class="ttc" id="group__texture_html_ga83b2b13cb35dd4b4e9e874173a246581"><div class="ttname"><a href="group__texture.html#ga83b2b13cb35dd4b4e9e874173a246581">allegro_gl_get_bitmap_color_format</a></div><div class="ttdeci">GLenum allegro_gl_get_bitmap_color_format(BITMAP *bmp)</div><div class="ttdoc">AllegroGL will generate mipmaps for this texture. </div><div class="ttdef"><b>Definition:</b> <a href="texture_8c_source.html#l01456">texture.c:1456</a></div></div>
<div class="ttc" id="group__texture_html_gaeb33dfbbc1725f5132c10ac32ef6800d"><div class="ttname"><a href="group__texture.html#gaeb33dfbbc1725f5132c10ac32ef6800d">allegro_gl_make_masked_texture</a></div><div class="ttdeci">GLuint allegro_gl_make_masked_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#l01402">texture.c:1402</a></div></div>
<div class="ttc" id="group__texture_html_gabaf179e577a9328a751e92e3603f0746"><div class="ttname"><a href="group__texture.html#gabaf179e577a9328a751e92e3603f0746">AGL_TEXTURE_MIPMAP</a></div><div class="ttdeci">#define AGL_TEXTURE_MIPMAP</div><div class="ttdoc">AllegroGL will generate mipmaps for this texture. </div><div class="ttdef"><b>Definition:</b> <a href="alleggl_8h_source.html#l00521">alleggl.h:521</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__texture_html_gab0cf4dc0ddcb45f5b067d08aed1c88e6"><div class="ttname"><a href="group__texture.html#gab0cf4dc0ddcb45f5b067d08aed1c88e6">allegro_gl_check_texture_ex</a></div><div class="ttdeci">int allegro_gl_check_texture_ex(int flags, BITMAP *bmp, GLint internal_format)</div><div class="ttdoc">Checks whether the specified bitmap is of the proper size for texturing. </div><div class="ttdef"><b>Definition:</b> <a href="texture_8c_source.html#l00495">texture.c:495</a></div></div>
<div class="ttc" id="group__texture_html_gadeffe4feb290278035beacedb284a010"><div class="ttname"><a href="group__texture.html#gadeffe4feb290278035beacedb284a010">AGL_TEXTURE_FLIP</a></div><div class="ttdeci">#define AGL_TEXTURE_FLIP</div><div class="ttdoc">Flip the texture on the x-axis. </div><div class="ttdef"><b>Definition:</b> <a href="alleggl_8h_source.html#l00532">alleggl.h:532</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_gaa8b7246edc7ec019ec3b434eb0cacdf2"><div class="ttname"><a href="group__texture.html#gaa8b7246edc7ec019ec3b434eb0cacdf2">AGL_TEXTURE_RESCALE</a></div><div class="ttdeci">#define AGL_TEXTURE_RESCALE</div><div class="ttdoc">Tell AllegroGL to allow rescaling of the bitmap. </div><div class="ttdef"><b>Definition:</b> <a href="alleggl_8h_source.html#l00543">alleggl.h:543</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__texture_html_ga59f7129dd541d2e5a291d36bf90b7289"><div class="ttname"><a href="group__texture.html#ga59f7129dd541d2e5a291d36bf90b7289">allegro_gl_get_bitmap_type</a></div><div class="ttdeci">GLenum allegro_gl_get_bitmap_type(BITMAP *bmp)</div><div class="ttdoc">AllegroGL will generate mipmaps for this texture. </div><div class="ttdef"><b>Definition:</b> <a href="texture_8c_source.html#l01433">texture.c:1433</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>
|
