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<h1>videovtb.c</h1> </div>
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<a href="videovtb_8c.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* This code is (C) AllegroGL contributors, and double licensed under</span>
<a name="l00002"></a>00002 <span class="comment"> * the GPL and zlib licenses. See gpl.txt or zlib.txt for details.</span>
<a name="l00003"></a>00003 <span class="comment"> */</span>
<a name="l00009"></a>00009 <span class="preprocessor">#include <string.h></span>
<a name="l00010"></a>00010 <span class="preprocessor">#include <limits.h></span>
<a name="l00011"></a>00011
<a name="l00012"></a>00012 <span class="preprocessor">#include <allegro.h></span>
<a name="l00013"></a>00013
<a name="l00014"></a>00014 <span class="preprocessor">#ifdef ALLEGRO_WINDOWS</span>
<a name="l00015"></a>00015 <span class="preprocessor"></span><span class="preprocessor">#include <winalleg.h></span>
<a name="l00016"></a>00016 <span class="preprocessor">#endif</span>
<a name="l00017"></a>00017 <span class="preprocessor"></span>
<a name="l00018"></a>00018 <span class="preprocessor">#include "alleggl.h"</span>
<a name="l00019"></a>00019 <span class="preprocessor">#include "allglint.h"</span>
<a name="l00020"></a>00020 <span class="preprocessor">#include "glvtable.h"</span>
<a name="l00021"></a>00021 <span class="preprocessor">#include <allegro/internal/aintern.h></span>
<a name="l00022"></a>00022 <span class="preprocessor">#ifdef ALLEGRO_MACOSX</span>
<a name="l00023"></a>00023 <span class="preprocessor"></span><span class="preprocessor">#include <OpenGL/glu.h></span>
<a name="l00024"></a>00024 <span class="preprocessor">#else</span>
<a name="l00025"></a>00025 <span class="preprocessor"></span><span class="preprocessor">#include <GL/glu.h></span>
<a name="l00026"></a>00026 <span class="preprocessor">#endif</span>
<a name="l00027"></a>00027 <span class="preprocessor"></span>
<a name="l00028"></a>00028
<a name="l00029"></a>00029 <span class="preprocessor">#define MASKED_BLIT 1</span>
<a name="l00030"></a>00030 <span class="preprocessor"></span><span class="preprocessor">#define BLIT 2</span>
<a name="l00031"></a>00031 <span class="preprocessor"></span><span class="preprocessor">#define TRANS 3</span>
<a name="l00032"></a>00032 <span class="preprocessor"></span>
<a name="l00033"></a>00033
<a name="l00034"></a>00034 <span class="keyword">static</span> GFX_VTABLE allegro_gl_video_vtable;
<a name="l00035"></a>00035
<a name="l00036"></a>00036 <span class="comment">/* Counter for video bitmaps. screen = 1 */</span>
<a name="l00037"></a>00037 <span class="keyword">static</span> <span class="keywordtype">int</span> video_bitmap_count = 2;
<a name="l00038"></a>00038
<a name="l00039"></a>00039 <span class="keyword">static</span> <span class="keywordtype">int</span> __allegro_gl_video_bitmap_bpp = -1;
<a name="l00040"></a>00040
<a name="l00041"></a>00041 <span class="keyword">extern</span> BITMAP *__agl_drawing_pattern_bmp;
<a name="l00042"></a>00042 BITMAP *old_pattern = NULL;
<a name="l00043"></a>00043
<a name="l00044"></a>00044 <span class="keywordtype">void</span> <a class="code" href="videovtb_8c.html#a69a97f6c3805246762fbefb545f20f87" title="destroy_video_bitmap() overload.">allegro_gl_destroy_video_bitmap</a>(BITMAP *bmp);
<a name="l00045"></a>00045
<a name="l00046"></a>00046
<a name="l00047"></a>00047
<a name="l00048"></a>00048 <span class="keyword">static</span> <span class="keywordtype">int</span> allegro_gl_make_video_bitmap_helper1(<span class="keywordtype">int</span> w, <span class="keywordtype">int</span> h, <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y,
<a name="l00049"></a>00049 GLint target, AGL_VIDEO_BITMAP **pvid) {
<a name="l00050"></a>00050
<a name="l00051"></a>00051 <span class="keywordtype">int</span> internal_format;
<a name="l00052"></a>00052 <span class="keywordtype">int</span> bpp;
<a name="l00053"></a>00053
<a name="l00054"></a>00054 <span class="keywordflow">if</span> (__allegro_gl_video_bitmap_bpp == -1) {
<a name="l00055"></a>00055 bpp = bitmap_color_depth(screen);
<a name="l00056"></a>00056 }
<a name="l00057"></a>00057 <span class="keywordflow">else</span> {
<a name="l00058"></a>00058 bpp = __allegro_gl_video_bitmap_bpp;
<a name="l00059"></a>00059 }
<a name="l00060"></a>00060
<a name="l00061"></a>00061 (*pvid) = malloc(<span class="keyword">sizeof</span>(AGL_VIDEO_BITMAP));
<a name="l00062"></a>00062
<a name="l00063"></a>00063 <span class="keywordflow">if</span> (!(*pvid))
<a name="l00064"></a>00064 <span class="keywordflow">return</span> -1;
<a name="l00065"></a>00065
<a name="l00066"></a>00066 memset(*pvid, 0, <span class="keyword">sizeof</span>(AGL_VIDEO_BITMAP));
<a name="l00067"></a>00067
<a name="l00068"></a>00068 <span class="comment">/* Create associated bitmap */</span>
<a name="l00069"></a>00069 (*pvid)->memory_copy = create_bitmap_ex(bpp, w, h);
<a name="l00070"></a>00070 <span class="keywordflow">if</span> (!(*pvid)->memory_copy)
<a name="l00071"></a>00071 <span class="keywordflow">return</span> -1;
<a name="l00072"></a>00072
<a name="l00073"></a>00073 (*pvid)->format = __allegro_gl_get_bitmap_color_format((*pvid)->memory_copy, <a class="code" href="group__texture.html#ga8cc859eadf1610b424cd9188e716f432" title="Tell AllegroGL that the bitmap had an alpha channel, so it should be preserved when generating the te...">AGL_TEXTURE_HAS_ALPHA</a>);
<a name="l00074"></a>00074 (*pvid)->type = __allegro_gl_get_bitmap_type((*pvid)->memory_copy, 0);
<a name="l00075"></a>00075 internal_format = __allegro_gl_get_texture_format_ex((*pvid)->memory_copy, <a class="code" href="group__texture.html#ga8cc859eadf1610b424cd9188e716f432" title="Tell AllegroGL that the bitmap had an alpha channel, so it should be preserved when generating the te...">AGL_TEXTURE_HAS_ALPHA</a>);
<a name="l00076"></a>00076
<a name="l00077"></a>00077 (*pvid)->target = target;
<a name="l00078"></a>00078
<a name="l00079"></a>00079 <span class="comment">/* Fill in some values in the bitmap to make it act as a subbitmap</span>
<a name="l00080"></a>00080 <span class="comment"> */</span>
<a name="l00081"></a>00081 (*pvid)->width = w;
<a name="l00082"></a>00082 (*pvid)->height = h;
<a name="l00083"></a>00083 (*pvid)->x_ofs = x;
<a name="l00084"></a>00084 (*pvid)->y_ofs = y;
<a name="l00085"></a>00085
<a name="l00086"></a>00086 <span class="comment">/* Make a texture out of it */</span>
<a name="l00087"></a>00087 glGenTextures(1, &((*pvid)->tex));
<a name="l00088"></a>00088 <span class="keywordflow">if</span> (!((*pvid)->tex))
<a name="l00089"></a>00089 <span class="keywordflow">return</span> -1;
<a name="l00090"></a>00090
<a name="l00091"></a>00091 glEnable((*pvid)->target);
<a name="l00092"></a>00092 glBindTexture((*pvid)->target, ((*pvid)->tex));
<a name="l00093"></a>00093
<a name="l00094"></a>00094 glTexImage2D((*pvid)->target, 0, internal_format, w, h,
<a name="l00095"></a>00095 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
<a name="l00096"></a>00096
<a name="l00097"></a>00097 <span class="comment">/* By default, use the Allegro filtering mode - ie: Nearest */</span>
<a name="l00098"></a>00098 glTexParameteri((*pvid)->target, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
<a name="l00099"></a>00099 glTexParameteri((*pvid)->target, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
<a name="l00100"></a>00100
<a name="l00101"></a>00101 <span class="comment">/* <mmimica></span>
<a name="l00102"></a>00102 <span class="comment"> Clamping removed because we want video bitmaps that are set for</span>
<a name="l00103"></a>00103 <span class="comment"> patterned drawing to be GL_REPEAT (default wrapping mode). Doesn't</span>
<a name="l00104"></a>00104 <span class="comment"> seem to break anything.</span>
<a name="l00105"></a>00105 <span class="comment"> */</span>
<a name="l00106"></a>00106 <span class="preprocessor">#if 0</span>
<a name="l00107"></a>00107 <span class="preprocessor"></span> <span class="comment">/* Clamp to edge */</span>
<a name="l00108"></a>00108 {
<a name="l00109"></a>00109 GLenum clamp = GL_CLAMP_TO_EDGE;
<a name="l00110"></a>00110 <span class="keywordflow">if</span> (!<a class="code" href="group__extensions.html#ga7492f6f6acc608789210560ee63e5436" title="List of OpenGL extensions supported by AllegroGL.">allegro_gl_extensions_GL</a>.SGIS_texture_edge_clamp) {
<a name="l00111"></a>00111 clamp = GL_CLAMP;
<a name="l00112"></a>00112 }
<a name="l00113"></a>00113 glTexParameteri((*pvid)->target, GL_TEXTURE_WRAP_S, clamp);
<a name="l00114"></a>00114 glTexParameteri((*pvid)->target, GL_TEXTURE_WRAP_T, clamp);
<a name="l00115"></a>00115 }
<a name="l00116"></a>00116 <span class="preprocessor">#endif</span>
<a name="l00117"></a>00117 <span class="preprocessor"></span>
<a name="l00118"></a>00118 glDisable((*pvid)->target);
<a name="l00119"></a>00119
<a name="l00120"></a>00120 <span class="keywordflow">if</span> (<a class="code" href="group__extensions.html#ga7492f6f6acc608789210560ee63e5436" title="List of OpenGL extensions supported by AllegroGL.">allegro_gl_extensions_GL</a>.EXT_framebuffer_object) {
<a name="l00121"></a>00121 glGenFramebuffersEXT(1, &((*pvid)->fbo));
<a name="l00122"></a>00122 <span class="keywordflow">if</span> (!(*pvid)->fbo) {
<a name="l00123"></a>00123 glDeleteTextures(1, &((*pvid)->tex));
<a name="l00124"></a>00124 <span class="keywordflow">return</span> -1;
<a name="l00125"></a>00125 }
<a name="l00126"></a>00126
<a name="l00127"></a>00127 glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, (*pvid)->fbo);
<a name="l00128"></a>00128 glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, (*pvid)->target, (*pvid)->tex, 0);
<a name="l00129"></a>00129 <span class="keywordflow">if</span> (glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT) != GL_FRAMEBUFFER_COMPLETE_EXT) {
<a name="l00130"></a>00130 <span class="comment">/* Some FBO implementation limitation was hit, will use normal textures. */</span>
<a name="l00131"></a>00131 glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
<a name="l00132"></a>00132 glDeleteFramebuffersEXT(1, &((*pvid)->fbo));
<a name="l00133"></a>00133 (*pvid)->fbo = 0;
<a name="l00134"></a>00134 <span class="keywordflow">return</span> 0;
<a name="l00135"></a>00135 }
<a name="l00136"></a>00136
<a name="l00137"></a>00137 glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
<a name="l00138"></a>00138 }
<a name="l00139"></a>00139 <span class="keywordflow">else</span> {
<a name="l00140"></a>00140 (*pvid)->fbo = 0;
<a name="l00141"></a>00141 }
<a name="l00142"></a>00142
<a name="l00143"></a>00143 <span class="keywordflow">return</span> 0;
<a name="l00144"></a>00144 }
<a name="l00145"></a>00145
<a name="l00146"></a>00146
<a name="l00147"></a>00147
<a name="l00148"></a>00148 <span class="keyword">static</span> <span class="keywordtype">int</span> allegro_gl_make_video_bitmap_helper0(<span class="keywordtype">int</span> w, <span class="keywordtype">int</span> h, <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y,
<a name="l00149"></a>00149 AGL_VIDEO_BITMAP **pvid) {
<a name="l00150"></a>00150
<a name="l00151"></a>00151 <span class="keywordtype">int</span> is_power_of_2 = (!(w & (w - 1)) && !(h & (h - 1)));
<a name="l00152"></a>00152 <span class="keywordtype">int</span> texture_rect_available = <a class="code" href="group__extensions.html#ga7492f6f6acc608789210560ee63e5436" title="List of OpenGL extensions supported by AllegroGL.">allegro_gl_extensions_GL</a>.ARB_texture_rectangle
<a name="l00153"></a>00153 <span class="preprocessor">#ifdef ALLEGRO_MACOSX</span>
<a name="l00154"></a>00154 <span class="preprocessor"></span> || <a class="code" href="group__extensions.html#ga7492f6f6acc608789210560ee63e5436" title="List of OpenGL extensions supported by AllegroGL.">allegro_gl_extensions_GL</a>.EXT_texture_rectangle
<a name="l00155"></a>00155 <span class="preprocessor">#endif</span>
<a name="l00156"></a>00156 <span class="preprocessor"></span> || <a class="code" href="group__extensions.html#ga7492f6f6acc608789210560ee63e5436" title="List of OpenGL extensions supported by AllegroGL.">allegro_gl_extensions_GL</a>.NV_texture_rectangle;
<a name="l00157"></a>00157 GLint max_rect_texture_size = 0;
<a name="l00158"></a>00158
<a name="l00159"></a>00159 <span class="keywordflow">if</span> (texture_rect_available) {
<a name="l00160"></a>00160 glGetIntegerv(GL_MAX_RECTANGLE_TEXTURE_SIZE_ARB, &max_rect_texture_size);
<a name="l00161"></a>00161 }
<a name="l00162"></a>00162
<a name="l00163"></a>00163 <span class="keywordflow">if</span> (w <= allegro_gl_info.max_texture_size &&
<a name="l00164"></a>00164 h <= allegro_gl_info.max_texture_size) {
<a name="l00165"></a>00165 <span class="keywordflow">if</span> (<a class="code" href="group__extensions.html#ga7492f6f6acc608789210560ee63e5436" title="List of OpenGL extensions supported by AllegroGL.">allegro_gl_extensions_GL</a>.ARB_texture_non_power_of_two ||
<a name="l00166"></a>00166 is_power_of_2) {
<a name="l00167"></a>00167 <span class="keywordflow">if</span> (allegro_gl_make_video_bitmap_helper1(w, h, x, y,
<a name="l00168"></a>00168 GL_TEXTURE_2D, pvid)) {
<a name="l00169"></a>00169 <span class="keywordflow">return</span> -1;
<a name="l00170"></a>00170 }
<a name="l00171"></a>00171 }
<a name="l00172"></a>00172 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (texture_rect_available &&
<a name="l00173"></a>00173 w <= max_rect_texture_size &&
<a name="l00174"></a>00174 h <= max_rect_texture_size) {
<a name="l00175"></a>00175 <span class="keywordflow">if</span> (allegro_gl_make_video_bitmap_helper1(w, h, x, y,
<a name="l00176"></a>00176 GL_TEXTURE_RECTANGLE_ARB, pvid)) {
<a name="l00177"></a>00177 <span class="keywordflow">return</span> -1;
<a name="l00178"></a>00178 }
<a name="l00179"></a>00179 }
<a name="l00180"></a>00180 <span class="keywordflow">else</span> {
<a name="l00181"></a>00181 <span class="comment">/* NPO2 textures are not suppored by the driver in any way.</span>
<a name="l00182"></a>00182 <span class="comment"> * Split the bitmap into smaller POT bitmaps. */</span>
<a name="l00183"></a>00183 <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> BITS = <span class="keyword">sizeof</span>(int) * CHAR_BIT;
<a name="l00184"></a>00184 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i, j;
<a name="l00185"></a>00185 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> w1, h1;
<a name="l00186"></a>00186 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> x1, y1;
<a name="l00187"></a>00187 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> p1, p2;
<a name="l00188"></a>00188
<a name="l00189"></a>00189 <span class="comment">/* Find the POTs using bits. */</span>
<a name="l00190"></a>00190 y1 = 0;
<a name="l00191"></a>00191 <span class="keywordflow">for</span> (i = 0; i < BITS; i++) {
<a name="l00192"></a>00192 p1 = 1 << i;
<a name="l00193"></a>00193 <span class="keywordflow">if</span> (h & p1)
<a name="l00194"></a>00194 h1 = p1;
<a name="l00195"></a>00195 <span class="keywordflow">else</span>
<a name="l00196"></a>00196 <span class="keywordflow">continue</span>;
<a name="l00197"></a>00197
<a name="l00198"></a>00198 x1 = 0;
<a name="l00199"></a>00199 <span class="keywordflow">for</span> (j = 0; j < BITS; j++) {
<a name="l00200"></a>00200 p2 = 1 << j;
<a name="l00201"></a>00201 <span class="keywordflow">if</span> (w & p2)
<a name="l00202"></a>00202 w1 = p2;
<a name="l00203"></a>00203 <span class="keywordflow">else</span>
<a name="l00204"></a>00204 <span class="keywordflow">continue</span>;
<a name="l00205"></a>00205
<a name="l00206"></a>00206 <span class="keywordflow">if</span> (allegro_gl_make_video_bitmap_helper0(w1, h1, x + x1,
<a name="l00207"></a>00207 y + y1, pvid)) {
<a name="l00208"></a>00208 <span class="keywordflow">return</span> -1;
<a name="l00209"></a>00209 }
<a name="l00210"></a>00210 <span class="keywordflow">do</span> {
<a name="l00211"></a>00211 pvid = &((*pvid)->next);
<a name="l00212"></a>00212 } <span class="keywordflow">while</span> (*pvid);
<a name="l00213"></a>00213
<a name="l00214"></a>00214 x1 += w1;
<a name="l00215"></a>00215 }
<a name="l00216"></a>00216
<a name="l00217"></a>00217 y1 += h1;
<a name="l00218"></a>00218 }
<a name="l00219"></a>00219 }
<a name="l00220"></a>00220 }
<a name="l00221"></a>00221 <span class="keywordflow">else</span> {
<a name="l00222"></a>00222 <span class="comment">/* Texture is too big to fit. Split it in 4 and try again. */</span>
<a name="l00223"></a>00223 <span class="keywordtype">int</span> w1, w2, h1, h2;
<a name="l00224"></a>00224
<a name="l00225"></a>00225 w2 = w / 2;
<a name="l00226"></a>00226 w1 = w - w2;
<a name="l00227"></a>00227
<a name="l00228"></a>00228 h2 = h / 2;
<a name="l00229"></a>00229 h1 = h - h2;
<a name="l00230"></a>00230
<a name="l00231"></a>00231 <span class="comment">/* Even a 1x1 texture didn't work? Bail*/</span>
<a name="l00232"></a>00232 <span class="keywordflow">if</span> (!w2 && !h2) {
<a name="l00233"></a>00233 <span class="keywordflow">return</span> -1;
<a name="l00234"></a>00234 }
<a name="l00235"></a>00235
<a name="l00236"></a>00236 <span class="comment">/* Top-left corner */</span>
<a name="l00237"></a>00237 <span class="keywordflow">if</span> (allegro_gl_make_video_bitmap_helper0(w1, h1, x, y, pvid)) {
<a name="l00238"></a>00238 <span class="keywordflow">return</span> -1;
<a name="l00239"></a>00239 }
<a name="l00240"></a>00240 <span class="keywordflow">do</span> {
<a name="l00241"></a>00241 pvid = &((*pvid)->next);
<a name="l00242"></a>00242 } <span class="keywordflow">while</span> (*pvid);
<a name="l00243"></a>00243
<a name="l00244"></a>00244 <span class="comment">/* Top-right corner */</span>
<a name="l00245"></a>00245 <span class="keywordflow">if</span> (w2) {
<a name="l00246"></a>00246 <span class="keywordflow">if</span> (allegro_gl_make_video_bitmap_helper0(w2, h1, x + w1, y, pvid)) {
<a name="l00247"></a>00247 <span class="keywordflow">return</span> -1;
<a name="l00248"></a>00248 }
<a name="l00249"></a>00249 <span class="keywordflow">do</span> {
<a name="l00250"></a>00250 pvid = &((*pvid)->next);
<a name="l00251"></a>00251 } <span class="keywordflow">while</span> (*pvid);
<a name="l00252"></a>00252 }
<a name="l00253"></a>00253 <span class="comment">/* Bottom-left corner */</span>
<a name="l00254"></a>00254 <span class="keywordflow">if</span> (h2) {
<a name="l00255"></a>00255 <span class="keywordflow">if</span> (allegro_gl_make_video_bitmap_helper0(w1, h2, x, y + h1, pvid)) {
<a name="l00256"></a>00256 <span class="keywordflow">return</span> -1;
<a name="l00257"></a>00257 }
<a name="l00258"></a>00258 <span class="keywordflow">do</span> {
<a name="l00259"></a>00259 pvid = &((*pvid)->next);
<a name="l00260"></a>00260 } <span class="keywordflow">while</span> (*pvid);
<a name="l00261"></a>00261 }
<a name="l00262"></a>00262 <span class="comment">/* Bottom-right corner */</span>
<a name="l00263"></a>00263 <span class="keywordflow">if</span> (w2 && h2) {
<a name="l00264"></a>00264 <span class="keywordflow">if</span> (allegro_gl_make_video_bitmap_helper0(w2, h2, x + w1, y + h1, pvid)) {
<a name="l00265"></a>00265 <span class="keywordflow">return</span> -1;
<a name="l00266"></a>00266 }
<a name="l00267"></a>00267 <span class="keywordflow">do</span> {
<a name="l00268"></a>00268 pvid = &((*pvid)->next);
<a name="l00269"></a>00269 } <span class="keywordflow">while</span> (*pvid);
<a name="l00270"></a>00270 }
<a name="l00271"></a>00271 }
<a name="l00272"></a>00272
<a name="l00273"></a>00273 <span class="keywordflow">return</span> 0;
<a name="l00274"></a>00274 }
<a name="l00275"></a>00275
<a name="l00276"></a>00276
<a name="l00277"></a>00277
<a name="l00278"></a>00278 <span class="comment">/* Will make a (potentially piece-wise) texture out of the specified bitmap</span>
<a name="l00279"></a>00279 <span class="comment"> * Source -must- be a memory bitmap or memory subbitmap (created by Allegro</span>
<a name="l00280"></a>00280 <span class="comment"> * only).</span>
<a name="l00281"></a>00281 <span class="comment"> *</span>
<a name="l00282"></a>00282 <span class="comment"> */</span>
<a name="l00283"></a>00283 <span class="keyword">static</span> BITMAP *allegro_gl_make_video_bitmap(BITMAP *bmp) {
<a name="l00284"></a>00284
<a name="l00285"></a>00285 <span class="comment">/* Grab a pointer to the bitmap data to patch */</span>
<a name="l00286"></a>00286 <span class="keywordtype">void</span> *ptr = &bmp->extra;
<a name="l00287"></a>00287 AGL_VIDEO_BITMAP **pvid = (AGL_VIDEO_BITMAP**)ptr;
<a name="l00288"></a>00288
<a name="l00289"></a>00289 <span class="comment">/* Convert bitmap to texture */</span>
<a name="l00290"></a>00290 <span class="keywordflow">if</span> (allegro_gl_make_video_bitmap_helper0(bmp->w, bmp->h, 0, 0, pvid)) {
<a name="l00291"></a>00291 <span class="keywordflow">goto</span> agl_error;
<a name="l00292"></a>00292 }
<a name="l00293"></a>00293
<a name="l00294"></a>00294 <span class="keywordflow">return</span> bmp;
<a name="l00295"></a>00295
<a name="l00296"></a>00296 agl_error:
<a name="l00297"></a>00297 <a class="code" href="videovtb_8c.html#a69a97f6c3805246762fbefb545f20f87" title="destroy_video_bitmap() overload.">allegro_gl_destroy_video_bitmap</a>(bmp);
<a name="l00298"></a>00298 <span class="keywordflow">return</span> NULL;
<a name="l00299"></a>00299 }
<a name="l00300"></a>00300
<a name="l00301"></a>00301
<a name="l00302"></a>00302
<a name="l00303"></a>00303 <span class="comment">/* void allegro_gl_destroy_video_bitmap(BITMAP *bmp) */</span>
<a name="l00308"></a><a class="code" href="videovtb_8c.html#a69a97f6c3805246762fbefb545f20f87">00308</a> <span class="keywordtype">void</span> <a class="code" href="videovtb_8c.html#a69a97f6c3805246762fbefb545f20f87" title="destroy_video_bitmap() overload.">allegro_gl_destroy_video_bitmap</a>(BITMAP *bmp) {
<a name="l00309"></a>00309
<a name="l00310"></a>00310 AGL_VIDEO_BITMAP *vid = bmp ? bmp->extra : NULL, *next;
<a name="l00311"></a>00311
<a name="l00312"></a>00312 <span class="keywordflow">if</span> (!bmp)
<a name="l00313"></a>00313 <span class="keywordflow">return</span>;
<a name="l00314"></a>00314
<a name="l00315"></a>00315 <span class="keywordflow">while</span> (vid) {
<a name="l00316"></a>00316 <span class="keywordflow">if</span> (vid->memory_copy)
<a name="l00317"></a>00317 destroy_bitmap(vid->memory_copy);
<a name="l00318"></a>00318
<a name="l00319"></a>00319 <span class="keywordflow">if</span> (vid->tex)
<a name="l00320"></a>00320 glDeleteTextures(1, &vid->tex);
<a name="l00321"></a>00321
<a name="l00322"></a>00322 <span class="keywordflow">if</span> (vid->fbo)
<a name="l00323"></a>00323 glDeleteFramebuffersEXT(1, &vid->fbo);
<a name="l00324"></a>00324
<a name="l00325"></a>00325 next = vid->next;
<a name="l00326"></a>00326 free(vid);
<a name="l00327"></a>00327 vid = next;
<a name="l00328"></a>00328 }
<a name="l00329"></a>00329
<a name="l00330"></a>00330 free(bmp->vtable);
<a name="l00331"></a>00331 free(bmp);
<a name="l00332"></a>00332
<a name="l00333"></a>00333 <span class="keywordflow">return</span>;
<a name="l00334"></a>00334 }
<a name="l00335"></a>00335
<a name="l00336"></a>00336
<a name="l00337"></a>00337
<a name="l00338"></a>00338 <span class="comment">/* BITMAP *allegro_gl_create_video_bitmap(int w, int h) */</span>
<a name="l00344"></a><a class="code" href="videovtb_8c.html#a4dadb9b189453bc9693c032ce63fc5b4">00344</a> BITMAP *<a class="code" href="videovtb_8c.html#a4dadb9b189453bc9693c032ce63fc5b4" title="create_video_bitmap() overload.">allegro_gl_create_video_bitmap</a>(<span class="keywordtype">int</span> w, <span class="keywordtype">int</span> h) {
<a name="l00345"></a>00345 GFX_VTABLE *vtable;
<a name="l00346"></a>00346 BITMAP *bitmap;
<a name="l00347"></a>00347
<a name="l00348"></a>00348 bitmap = malloc(<span class="keyword">sizeof</span>(BITMAP) + <span class="keyword">sizeof</span>(<span class="keywordtype">char</span> *));
<a name="l00349"></a>00349
<a name="l00350"></a>00350 <span class="keywordflow">if</span> (!bitmap)
<a name="l00351"></a>00351 <span class="keywordflow">return</span> NULL;
<a name="l00352"></a>00352
<a name="l00353"></a>00353 bitmap->dat = NULL;
<a name="l00354"></a>00354 bitmap->w = bitmap->cr = w;
<a name="l00355"></a>00355 bitmap->h = bitmap->cb = h;
<a name="l00356"></a>00356 bitmap->clip = TRUE;
<a name="l00357"></a>00357 bitmap->cl = bitmap->ct = 0;
<a name="l00358"></a>00358 bitmap->write_bank = bitmap->read_bank = NULL;
<a name="l00359"></a>00359 <span class="comment">/* We should keep tracks of allocated bitmaps for the ref counter */</span>
<a name="l00360"></a>00360 bitmap->id = BMP_ID_VIDEO | video_bitmap_count;
<a name="l00361"></a>00361 bitmap->extra = NULL;
<a name="l00362"></a>00362 bitmap->x_ofs = 0;
<a name="l00363"></a>00363 bitmap->y_ofs = 0;
<a name="l00364"></a>00364 bitmap->seg = _default_ds();
<a name="l00365"></a>00365 bitmap->line[0] = NULL;
<a name="l00366"></a>00366 bitmap->vtable = NULL;
<a name="l00367"></a>00367
<a name="l00368"></a>00368 <span class="keywordflow">if</span> (!allegro_gl_make_video_bitmap(bitmap)) {
<a name="l00369"></a>00369 <span class="keywordflow">return</span> NULL;
<a name="l00370"></a>00370 }
<a name="l00371"></a>00371 video_bitmap_count++;
<a name="l00372"></a>00372
<a name="l00373"></a>00373 <span class="comment">/* XXX <rohannessian> We ought to leave the Allegro values intact</span>
<a name="l00374"></a>00374 <span class="comment"> * Avoids bad interaction with correct Allegro programs.</span>
<a name="l00375"></a>00375 <span class="comment"> */</span>
<a name="l00376"></a>00376 vtable = malloc(<span class="keyword">sizeof</span>(<span class="keyword">struct</span> GFX_VTABLE));
<a name="l00377"></a>00377 *vtable = allegro_gl_video_vtable;
<a name="l00378"></a>00378 <span class="keywordflow">if</span> (__allegro_gl_video_bitmap_bpp == -1) {
<a name="l00379"></a>00379 vtable->color_depth = bitmap_color_depth(screen);
<a name="l00380"></a>00380 }
<a name="l00381"></a>00381 <span class="keywordflow">else</span> {
<a name="l00382"></a>00382 vtable->color_depth = __allegro_gl_video_bitmap_bpp;
<a name="l00383"></a>00383 }
<a name="l00384"></a>00384 <span class="keywordflow">switch</span> (vtable->color_depth) {
<a name="l00385"></a>00385 <span class="keywordflow">case</span> 8:
<a name="l00386"></a>00386 vtable->mask_color = MASK_COLOR_8;
<a name="l00387"></a>00387 <span class="keywordflow">break</span>;
<a name="l00388"></a>00388 <span class="keywordflow">case</span> 15:
<a name="l00389"></a>00389 vtable->mask_color = MASK_COLOR_15;
<a name="l00390"></a>00390 <span class="keywordflow">break</span>;
<a name="l00391"></a>00391 <span class="keywordflow">case</span> 16:
<a name="l00392"></a>00392 vtable->mask_color = MASK_COLOR_16;
<a name="l00393"></a>00393 <span class="keywordflow">break</span>;
<a name="l00394"></a>00394 <span class="keywordflow">case</span> 24:
<a name="l00395"></a>00395 vtable->mask_color = MASK_COLOR_24;
<a name="l00396"></a>00396 <span class="keywordflow">break</span>;
<a name="l00397"></a>00397 <span class="keywordflow">case</span> 32:
<a name="l00398"></a>00398 vtable->mask_color = MASK_COLOR_32;
<a name="l00399"></a>00399 <span class="keywordflow">break</span>;
<a name="l00400"></a>00400 }
<a name="l00401"></a>00401 bitmap->vtable = vtable;
<a name="l00402"></a>00402
<a name="l00403"></a>00403 <span class="keywordflow">return</span> bitmap;
<a name="l00404"></a>00404 }
<a name="l00405"></a>00405
<a name="l00406"></a>00406
<a name="l00407"></a>00407
<a name="l00408"></a>00408 <span class="comment">/* allegro_gl_set_video_bitmap_color_depth(int bpp) */</span>
<a name="l00423"></a><a class="code" href="group__bitmap.html#ga92d58cf7b4bebf34aa27112efba1020e">00423</a> GLint <a class="code" href="group__bitmap.html#ga92d58cf7b4bebf34aa27112efba1020e" title="Sets the color depth you&#39;d like AllegroGL to use for video bitmaps.">allegro_gl_set_video_bitmap_color_depth</a>(<span class="keywordtype">int</span> bpp) {
<a name="l00424"></a>00424 GLint old_val = __allegro_gl_video_bitmap_bpp;
<a name="l00425"></a>00425 __allegro_gl_video_bitmap_bpp = bpp;
<a name="l00426"></a>00426 <span class="keywordflow">return</span> old_val;
<a name="l00427"></a>00427 }
<a name="l00428"></a>00428
<a name="l00429"></a>00429
<a name="l00430"></a>00430 <span class="comment">/* static void allegro_gl_video_acquire(struct BITMAP *bmp) */</span>
<a name="l00437"></a><a class="code" href="group__glvtable.html#ga7002daa2a3e02adf79bed09039469595">00437</a> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="group__glvtable.html#ga7002daa2a3e02adf79bed09039469595" title="acquire_bitmap(bmp) overload.">allegro_gl_video_acquire</a>(<span class="keyword">struct</span> BITMAP *bmp) {}
<a name="l00438"></a>00438
<a name="l00439"></a>00439
<a name="l00440"></a>00440
<a name="l00441"></a>00441 <span class="comment">/* static void allegro_gl_video_release(struct BITMAP *bmp) */</span>
<a name="l00448"></a><a class="code" href="group__glvtable.html#ga6fe7f8e5d64ab6b6e85643adefe8b0d5">00448</a> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="group__glvtable.html#ga6fe7f8e5d64ab6b6e85643adefe8b0d5" title="release_bitmap(bmp) overload.">allegro_gl_video_release</a>(<span class="keyword">struct</span> BITMAP *bmp) {}
<a name="l00449"></a>00449
<a name="l00450"></a>00450
<a name="l00451"></a>00451
<a name="l00452"></a>00452 <span class="keyword">static</span> <span class="keywordtype">void</span> set_drawing_pattern(<span class="keywordtype">void</span>)
<a name="l00453"></a>00453 {
<a name="l00454"></a>00454 <span class="keywordflow">if</span> (_drawing_pattern && !is_memory_bitmap(_drawing_pattern)) {
<a name="l00455"></a>00455 old_pattern = _drawing_pattern;
<a name="l00456"></a>00456 drawing_mode(_drawing_mode, __agl_drawing_pattern_bmp,
<a name="l00457"></a>00457 _drawing_x_anchor, _drawing_y_anchor);
<a name="l00458"></a>00458 }
<a name="l00459"></a>00459 }
<a name="l00460"></a>00460
<a name="l00461"></a>00461
<a name="l00462"></a>00462
<a name="l00463"></a>00463 <span class="keyword">static</span> <span class="keywordtype">void</span> unset_drawing_pattern(<span class="keywordtype">void</span>)
<a name="l00464"></a>00464 {
<a name="l00465"></a>00465 <span class="keywordflow">if</span> (old_pattern) {
<a name="l00466"></a>00466 drawing_mode(_drawing_mode, old_pattern,
<a name="l00467"></a>00467 _drawing_x_anchor, _drawing_y_anchor);
<a name="l00468"></a>00468 old_pattern = NULL;
<a name="l00469"></a>00469 }
<a name="l00470"></a>00470 }
<a name="l00471"></a>00471
<a name="l00472"></a>00472
<a name="l00473"></a>00473
<a name="l00474"></a>00474 <span class="keyword">static</span> <span class="keywordtype">int</span> allegro_gl_video_getpixel(<span class="keyword">struct</span> BITMAP *bmp, <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y)
<a name="l00475"></a>00475 {
<a name="l00476"></a>00476 <span class="keywordtype">int</span> pix = -1;
<a name="l00477"></a>00477 AGL_VIDEO_BITMAP *vid;
<a name="l00478"></a>00478 AGL_LOG(2, <span class="stringliteral">"glvtable.c:allegro_gl_screen_getpixel\n"</span>);
<a name="l00479"></a>00479
<a name="l00480"></a>00480 <span class="keywordflow">if</span> (is_sub_bitmap(bmp)) {
<a name="l00481"></a>00481 x += bmp->x_ofs;
<a name="l00482"></a>00482 y += bmp->y_ofs;
<a name="l00483"></a>00483 }
<a name="l00484"></a>00484 <span class="keywordflow">if</span> (x < bmp->cl || x >= bmp->cr || y < bmp->ct || y >= bmp->cb) {
<a name="l00485"></a>00485 <span class="keywordflow">return</span> -1;
<a name="l00486"></a>00486 }
<a name="l00487"></a>00487
<a name="l00488"></a>00488 vid = bmp->extra;
<a name="l00489"></a>00489
<a name="l00490"></a>00490 <span class="keywordflow">while</span> (vid) {
<a name="l00491"></a>00491 <span class="keywordflow">if</span> (vid->x_ofs <= x && vid->y_ofs <= y
<a name="l00492"></a>00492 && vid->x_ofs + vid->memory_copy->w > x
<a name="l00493"></a>00493 && vid->y_ofs + vid->memory_copy->h > y) {
<a name="l00494"></a>00494
<a name="l00495"></a>00495 pix = getpixel(vid->memory_copy, x - vid->x_ofs, y - vid->y_ofs);
<a name="l00496"></a>00496 <span class="keywordflow">break</span>;
<a name="l00497"></a>00497 }
<a name="l00498"></a>00498 vid = vid->next;
<a name="l00499"></a>00499 }
<a name="l00500"></a>00500
<a name="l00501"></a>00501 <span class="keywordflow">if</span> (pix != -1) {
<a name="l00502"></a>00502 <span class="keywordflow">return</span> pix;
<a name="l00503"></a>00503 }
<a name="l00504"></a>00504
<a name="l00505"></a>00505 <span class="keywordflow">return</span> -1;
<a name="l00506"></a>00506 }
<a name="l00507"></a>00507
<a name="l00508"></a>00508
<a name="l00509"></a>00509
<a name="l00510"></a>00510 <span class="keyword">static</span> <span class="keywordtype">void</span> update_texture_memory(AGL_VIDEO_BITMAP *vid, <span class="keywordtype">int</span> x1, <span class="keywordtype">int</span> y1,
<a name="l00511"></a>00511 <span class="keywordtype">int</span> x2, <span class="keywordtype">int</span> y2) {
<a name="l00512"></a>00512 GLint saved_row_length;
<a name="l00513"></a>00513 GLint saved_alignment;
<a name="l00514"></a>00514 GLint type;
<a name="l00515"></a>00515 GLint format;
<a name="l00516"></a>00516 <span class="keywordtype">int</span> bpp;
<a name="l00517"></a>00517 BITMAP *temp = NULL;
<a name="l00518"></a>00518 BITMAP *vbmp = vid->memory_copy;;
<a name="l00519"></a>00519
<a name="l00520"></a>00520 glGetIntegerv(GL_UNPACK_ROW_LENGTH, &saved_row_length);
<a name="l00521"></a>00521 glGetIntegerv(GL_UNPACK_ALIGNMENT, &saved_alignment);
<a name="l00522"></a>00522
<a name="l00523"></a>00523 bpp = BYTES_PER_PIXEL(bitmap_color_depth(vid->memory_copy));
<a name="l00524"></a>00524 format = vid->format;
<a name="l00525"></a>00525 type = vid->type;
<a name="l00526"></a>00526
<a name="l00527"></a>00527 glColor4ub(255, 255, 255, 255);
<a name="l00528"></a>00528
<a name="l00529"></a>00529 <span class="comment">/* If packed pixels (or GL 1.2) isn't supported, then we need to convert</span>
<a name="l00530"></a>00530 <span class="comment"> * the bitmap into something GL can understand - 24-bpp should do it.</span>
<a name="l00531"></a>00531 <span class="comment"> */</span>
<a name="l00532"></a>00532 <span class="keywordflow">if</span> (!<a class="code" href="group__extensions.html#ga7492f6f6acc608789210560ee63e5436" title="List of OpenGL extensions supported by AllegroGL.">allegro_gl_extensions_GL</a>.EXT_packed_pixels
<a name="l00533"></a>00533 && bitmap_color_depth(vbmp) < 24) {
<a name="l00534"></a>00534 temp = create_bitmap_ex(24, vbmp->w, vbmp->h);
<a name="l00535"></a>00535 <span class="keywordflow">if</span> (!temp)
<a name="l00536"></a>00536 <span class="keywordflow">return</span>;
<a name="l00537"></a>00537
<a name="l00538"></a>00538 blit(vbmp, temp, 0, 0, 0, 0, temp->w, temp->h);
<a name="l00539"></a>00539 vbmp = temp;
<a name="l00540"></a>00540 bpp = BYTES_PER_PIXEL(bitmap_color_depth(vbmp));
<a name="l00541"></a>00541 format = __allegro_gl_get_bitmap_color_format(vbmp, 0);
<a name="l00542"></a>00542 type = __allegro_gl_get_bitmap_type(vbmp, 0);
<a name="l00543"></a>00543 }
<a name="l00544"></a>00544
<a name="l00545"></a>00545 glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
<a name="l00546"></a>00546 glPixelStorei(GL_UNPACK_ROW_LENGTH,
<a name="l00547"></a>00547 vbmp->h > 1
<a name="l00548"></a>00548 ? (vbmp->line[1] - vbmp->line[0]) / bpp
<a name="l00549"></a>00549 : vbmp->w);
<a name="l00550"></a>00550
<a name="l00551"></a>00551 glEnable(vid->target);
<a name="l00552"></a>00552 glBindTexture(vid->target, vid->tex);
<a name="l00553"></a>00553 glTexSubImage2D(vid->target, 0,
<a name="l00554"></a>00554 x1, y1, x2 - x1 + 1, y2 - y1 + 1, format,
<a name="l00555"></a>00555 type, vbmp->line[y1] + x1 * bpp);
<a name="l00556"></a>00556 glBindTexture(vid->target, 0);
<a name="l00557"></a>00557 glDisable(vid->target);
<a name="l00558"></a>00558
<a name="l00559"></a>00559 <span class="keywordflow">if</span> (temp)
<a name="l00560"></a>00560 destroy_bitmap(temp);
<a name="l00561"></a>00561
<a name="l00562"></a>00562 glPixelStorei(GL_UNPACK_ROW_LENGTH, saved_row_length);
<a name="l00563"></a>00563 glPixelStorei(GL_UNPACK_ALIGNMENT, saved_alignment);
<a name="l00564"></a>00564 }
<a name="l00565"></a>00565
<a name="l00566"></a>00566
<a name="l00567"></a>00567
<a name="l00568"></a>00568 <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_video_putpixel(<span class="keyword">struct</span> BITMAP *bmp, <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y,
<a name="l00569"></a>00569 <span class="keywordtype">int</span> color) {
<a name="l00570"></a>00570 AGL_VIDEO_BITMAP *vid;
<a name="l00571"></a>00571
<a name="l00572"></a>00572 <span class="keywordflow">if</span> (is_sub_bitmap(bmp)) {
<a name="l00573"></a>00573 x += bmp->x_ofs;
<a name="l00574"></a>00574 y += bmp->y_ofs;
<a name="l00575"></a>00575 }
<a name="l00576"></a>00576 <span class="keywordflow">if</span> (x < bmp->cl || x >= bmp->cr || y < bmp->ct || y >= bmp->cb) {
<a name="l00577"></a>00577 <span class="keywordflow">return</span>;
<a name="l00578"></a>00578 }
<a name="l00579"></a>00579
<a name="l00580"></a>00580 vid = bmp->extra;
<a name="l00581"></a>00581
<a name="l00582"></a>00582 <span class="keywordflow">while</span> (vid) {
<a name="l00583"></a>00583 <span class="keywordflow">if</span> (vid->x_ofs <= x && vid->y_ofs <= y
<a name="l00584"></a>00584 && vid->x_ofs + vid->memory_copy->w > x
<a name="l00585"></a>00585 && vid->y_ofs + vid->memory_copy->h > y) {
<a name="l00586"></a>00586
<a name="l00587"></a>00587 set_drawing_pattern();
<a name="l00588"></a>00588 putpixel(vid->memory_copy, x - vid->x_ofs, y - vid->y_ofs, color);
<a name="l00589"></a>00589 unset_drawing_pattern();
<a name="l00590"></a>00590 update_texture_memory(vid, x - vid->x_ofs, y - vid->y_ofs, x - vid->x_ofs, y - vid->y_ofs);
<a name="l00591"></a>00591 <span class="keywordflow">break</span>;
<a name="l00592"></a>00592 }
<a name="l00593"></a>00593 vid = vid->next;
<a name="l00594"></a>00594 }
<a name="l00595"></a>00595
<a name="l00596"></a>00596 <span class="keywordflow">return</span>;
<a name="l00597"></a>00597 }
<a name="l00598"></a>00598
<a name="l00599"></a>00599
<a name="l00600"></a>00600
<a name="l00601"></a>00601 <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_video_vline(BITMAP *bmp, <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y1, <span class="keywordtype">int</span> y2,
<a name="l00602"></a>00602 <span class="keywordtype">int</span> color) {
<a name="l00603"></a>00603
<a name="l00604"></a>00604 AGL_VIDEO_BITMAP *vid;
<a name="l00605"></a>00605
<a name="l00606"></a>00606 AGL_LOG(2, <span class="stringliteral">"glvtable.c:allegro_gl_video_vline\n"</span>);
<a name="l00607"></a>00607 vid = bmp->extra;
<a name="l00608"></a>00608
<a name="l00609"></a>00609 <span class="keywordflow">if</span> (is_sub_bitmap(bmp)) {
<a name="l00610"></a>00610 x += bmp->x_ofs;
<a name="l00611"></a>00611 y1 += bmp->y_ofs;
<a name="l00612"></a>00612 y2 += bmp->y_ofs;
<a name="l00613"></a>00613 }
<a name="l00614"></a>00614 <span class="keywordflow">if</span> (x < bmp->cl || x >= bmp->cr) {
<a name="l00615"></a>00615 <span class="keywordflow">return</span>;
<a name="l00616"></a>00616 }
<a name="l00617"></a>00617
<a name="l00618"></a>00618 <span class="keywordflow">if</span> (y1 > y2) {
<a name="l00619"></a>00619 <span class="keywordtype">int</span> temp = y1;
<a name="l00620"></a>00620 y1 = y2;
<a name="l00621"></a>00621 y2 = temp;
<a name="l00622"></a>00622 }
<a name="l00623"></a>00623
<a name="l00624"></a>00624 <span class="keywordflow">if</span> (y1 < bmp->ct) {
<a name="l00625"></a>00625 y1 = bmp->ct;
<a name="l00626"></a>00626 }
<a name="l00627"></a>00627 <span class="keywordflow">if</span> (y2 >= bmp->cb) {
<a name="l00628"></a>00628 y2 = bmp->cb - 1;
<a name="l00629"></a>00629 }
<a name="l00630"></a>00630
<a name="l00631"></a>00631 <span class="keywordflow">while</span> (vid) {
<a name="l00632"></a>00632 BITMAP *vbmp = vid->memory_copy;
<a name="l00633"></a>00633
<a name="l00634"></a>00634 <span class="keywordtype">int</span> _y1, _y2, _x;
<a name="l00635"></a>00635 <span class="keywordflow">if</span> (vid->x_ofs > x || vid->y_ofs > y2
<a name="l00636"></a>00636 || vid->x_ofs + vbmp->w <= x
<a name="l00637"></a>00637 || vid->y_ofs + vbmp->h <= y1) {
<a name="l00638"></a>00638
<a name="l00639"></a>00639 vid = vid->next;
<a name="l00640"></a>00640 <span class="keywordflow">continue</span>;
<a name="l00641"></a>00641 }
<a name="l00642"></a>00642
<a name="l00643"></a>00643 _y1 = MAX(y1, vid->y_ofs) - vid->y_ofs;
<a name="l00644"></a>00644 _y2 = MIN(y2, vid->y_ofs + vbmp->h - 1) - vid->y_ofs;
<a name="l00645"></a>00645 _x = x - vid->x_ofs;
<a name="l00646"></a>00646
<a name="l00647"></a>00647 set_drawing_pattern();
<a name="l00648"></a>00648 vline(vbmp, _x, _y1, _y2, color);
<a name="l00649"></a>00649 unset_drawing_pattern();
<a name="l00650"></a>00650 update_texture_memory(vid, _x, _y1, _x, _y2);
<a name="l00651"></a>00651
<a name="l00652"></a>00652 vid = vid->next;
<a name="l00653"></a>00653 }
<a name="l00654"></a>00654
<a name="l00655"></a>00655 <span class="keywordflow">return</span>;
<a name="l00656"></a>00656 }
<a name="l00657"></a>00657
<a name="l00658"></a>00658
<a name="l00659"></a>00659
<a name="l00660"></a>00660 <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_video_hline(BITMAP *bmp, <span class="keywordtype">int</span> x1, <span class="keywordtype">int</span> y, <span class="keywordtype">int</span> x2,
<a name="l00661"></a>00661 <span class="keywordtype">int</span> color) {
<a name="l00662"></a>00662
<a name="l00663"></a>00663 AGL_VIDEO_BITMAP *vid;
<a name="l00664"></a>00664
<a name="l00665"></a>00665 AGL_LOG(2, <span class="stringliteral">"glvtable.c:allegro_gl_video_hline\n"</span>);
<a name="l00666"></a>00666 vid = bmp->extra;
<a name="l00667"></a>00667
<a name="l00668"></a>00668 <span class="keywordflow">if</span> (is_sub_bitmap(bmp)) {
<a name="l00669"></a>00669 x1 += bmp->x_ofs;
<a name="l00670"></a>00670 x2 += bmp->x_ofs;
<a name="l00671"></a>00671 y += bmp->y_ofs;
<a name="l00672"></a>00672 }
<a name="l00673"></a>00673
<a name="l00674"></a>00674 <span class="keywordflow">if</span> (y < bmp->ct || y >= bmp->cb) {
<a name="l00675"></a>00675 <span class="keywordflow">return</span>;
<a name="l00676"></a>00676 }
<a name="l00677"></a>00677
<a name="l00678"></a>00678 <span class="keywordflow">if</span> (x1 > x2) {
<a name="l00679"></a>00679 <span class="keywordtype">int</span> temp = x1;
<a name="l00680"></a>00680 x1 = x2;
<a name="l00681"></a>00681 x2 = temp;
<a name="l00682"></a>00682 }
<a name="l00683"></a>00683
<a name="l00684"></a>00684 <span class="keywordflow">if</span> (x1 < bmp->cl) {
<a name="l00685"></a>00685 x1 = bmp->cl;
<a name="l00686"></a>00686 }
<a name="l00687"></a>00687 <span class="keywordflow">if</span> (x2 >= bmp->cr) {
<a name="l00688"></a>00688 x2 = bmp->cr - 1;
<a name="l00689"></a>00689 }
<a name="l00690"></a>00690
<a name="l00691"></a>00691 <span class="keywordflow">while</span> (vid) {
<a name="l00692"></a>00692 BITMAP *vbmp = vid->memory_copy;
<a name="l00693"></a>00693
<a name="l00694"></a>00694 <span class="keywordtype">int</span> _x1, _x2, _y;
<a name="l00695"></a>00695 <span class="keywordflow">if</span> (vid->y_ofs > y || vid->x_ofs > x2
<a name="l00696"></a>00696 || vid->x_ofs + vbmp->w <= x1
<a name="l00697"></a>00697 || vid->y_ofs + vbmp->h <= y) {
<a name="l00698"></a>00698
<a name="l00699"></a>00699 vid = vid->next;
<a name="l00700"></a>00700 <span class="keywordflow">continue</span>;
<a name="l00701"></a>00701 }
<a name="l00702"></a>00702
<a name="l00703"></a>00703 _x1 = MAX(x1, vid->x_ofs) - vid->x_ofs;
<a name="l00704"></a>00704 _x2 = MIN(x2, vid->x_ofs + vbmp->w - 1) - vid->x_ofs;
<a name="l00705"></a>00705 _y = y - vid->y_ofs;
<a name="l00706"></a>00706
<a name="l00707"></a>00707 set_drawing_pattern();
<a name="l00708"></a>00708 hline(vbmp, _x1, _y, _x2, color);
<a name="l00709"></a>00709 unset_drawing_pattern();
<a name="l00710"></a>00710 update_texture_memory(vid, _x1, _y, _x2, _y);
<a name="l00711"></a>00711
<a name="l00712"></a>00712 vid = vid->next;
<a name="l00713"></a>00713 }
<a name="l00714"></a>00714
<a name="l00715"></a>00715 <span class="keywordflow">return</span>;
<a name="l00716"></a>00716 }
<a name="l00717"></a>00717
<a name="l00718"></a>00718
<a name="l00719"></a>00719
<a name="l00720"></a>00720 <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_video_line(<span class="keyword">struct</span> BITMAP *bmp, <span class="keywordtype">int</span> x1, <span class="keywordtype">int</span> y1, <span class="keywordtype">int</span> x2,
<a name="l00721"></a>00721 <span class="keywordtype">int</span> y2, <span class="keywordtype">int</span> color) {
<a name="l00722"></a>00722
<a name="l00723"></a>00723 <span class="comment">/* Note: very very slow */</span>
<a name="l00724"></a>00724 do_line(bmp, x1, y1, x2, y2, color, allegro_gl_video_putpixel);
<a name="l00725"></a>00725
<a name="l00726"></a>00726 <span class="keywordflow">return</span>;
<a name="l00727"></a>00727 }
<a name="l00728"></a>00728
<a name="l00729"></a>00729
<a name="l00730"></a>00730
<a name="l00731"></a>00731 <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_video_rectfill(<span class="keyword">struct</span> BITMAP *bmp, <span class="keywordtype">int</span> x1, <span class="keywordtype">int</span> y1,
<a name="l00732"></a>00732 <span class="keywordtype">int</span> x2, <span class="keywordtype">int</span> y2, <span class="keywordtype">int</span> color) {
<a name="l00733"></a>00733
<a name="l00734"></a>00734 AGL_VIDEO_BITMAP *vid;
<a name="l00735"></a>00735
<a name="l00736"></a>00736 AGL_LOG(2, <span class="stringliteral">"glvtable.c:allegro_gl_video_rectfill\n"</span>);
<a name="l00737"></a>00737 vid = bmp->extra;
<a name="l00738"></a>00738
<a name="l00739"></a>00739 <span class="keywordflow">if</span> (is_sub_bitmap(bmp)) {
<a name="l00740"></a>00740 x1 += bmp->x_ofs;
<a name="l00741"></a>00741 x2 += bmp->x_ofs;
<a name="l00742"></a>00742 y1 += bmp->y_ofs;
<a name="l00743"></a>00743 y2 += bmp->y_ofs;
<a name="l00744"></a>00744 }
<a name="l00745"></a>00745
<a name="l00746"></a>00746 <span class="keywordflow">if</span> (y1 > y2) {
<a name="l00747"></a>00747 <span class="keywordtype">int</span> temp = y1;
<a name="l00748"></a>00748 y1 = y2;
<a name="l00749"></a>00749 y2 = temp;
<a name="l00750"></a>00750 }
<a name="l00751"></a>00751
<a name="l00752"></a>00752 <span class="keywordflow">if</span> (x1 > x2) {
<a name="l00753"></a>00753 <span class="keywordtype">int</span> temp = x1;
<a name="l00754"></a>00754 x1 = x2;
<a name="l00755"></a>00755 x2 = temp;
<a name="l00756"></a>00756 }
<a name="l00757"></a>00757
<a name="l00758"></a>00758 <span class="keywordflow">if</span> (x1 < bmp->cl) {
<a name="l00759"></a>00759 x1 = bmp->cl;
<a name="l00760"></a>00760 }
<a name="l00761"></a>00761 <span class="keywordflow">if</span> (x2 > bmp->cr) {
<a name="l00762"></a>00762 x2 = bmp->cr;
<a name="l00763"></a>00763 }
<a name="l00764"></a>00764 <span class="keywordflow">if</span> (y1 < bmp->ct) {
<a name="l00765"></a>00765 y1 = bmp->ct;
<a name="l00766"></a>00766 }
<a name="l00767"></a>00767 <span class="keywordflow">if</span> (y1 > bmp->cb) {
<a name="l00768"></a>00768 y1 = bmp->cb;
<a name="l00769"></a>00769 }
<a name="l00770"></a>00770
<a name="l00771"></a>00771 <span class="keywordflow">while</span> (vid) {
<a name="l00772"></a>00772 BITMAP *vbmp = vid->memory_copy;
<a name="l00773"></a>00773
<a name="l00774"></a>00774 <span class="keywordtype">int</span> _y1, _y2, _x1, _x2;
<a name="l00775"></a>00775 <span class="keywordflow">if</span> (vid->x_ofs > x2 || vid->y_ofs > y2
<a name="l00776"></a>00776 || vid->x_ofs + vbmp->w <= x1
<a name="l00777"></a>00777 || vid->y_ofs + vbmp->h <= y1) {
<a name="l00778"></a>00778
<a name="l00779"></a>00779 vid = vid->next;
<a name="l00780"></a>00780 <span class="keywordflow">continue</span>;
<a name="l00781"></a>00781 }
<a name="l00782"></a>00782
<a name="l00783"></a>00783 _y1 = MAX(y1, vid->y_ofs) - vid->y_ofs;
<a name="l00784"></a>00784 _y2 = MIN(y2, vid->y_ofs + vbmp->h - 1) - vid->y_ofs;
<a name="l00785"></a>00785 _x1 = MAX(x1, vid->x_ofs) - vid->x_ofs;
<a name="l00786"></a>00786 _x2 = MIN(x2, vid->x_ofs + vbmp->w - 1) - vid->x_ofs;
<a name="l00787"></a>00787
<a name="l00788"></a>00788 set_drawing_pattern();
<a name="l00789"></a>00789 rectfill(vbmp, _x1, _y1, _x2, _y2, color);
<a name="l00790"></a>00790 unset_drawing_pattern();
<a name="l00791"></a>00791
<a name="l00792"></a>00792 update_texture_memory(vid, _x1, _y1, _x2, _y2);
<a name="l00793"></a>00793
<a name="l00794"></a>00794 vid = vid->next;
<a name="l00795"></a>00795 }
<a name="l00796"></a>00796
<a name="l00797"></a>00797 <span class="keywordflow">return</span>;
<a name="l00798"></a>00798 }
<a name="l00799"></a>00799
<a name="l00800"></a>00800
<a name="l00801"></a>00801 <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_video_triangle(<span class="keyword">struct</span> BITMAP *bmp, <span class="keywordtype">int</span> x1, <span class="keywordtype">int</span> y1,
<a name="l00802"></a>00802 <span class="keywordtype">int</span> x2, <span class="keywordtype">int</span> y2, <span class="keywordtype">int</span> x3, <span class="keywordtype">int</span> y3, <span class="keywordtype">int</span> color)
<a name="l00803"></a>00803 {
<a name="l00804"></a>00804 AGL_VIDEO_BITMAP *vid;
<a name="l00805"></a>00805 <span class="keywordtype">int</span> min_y, max_y, min_x, max_x;
<a name="l00806"></a>00806
<a name="l00807"></a>00807 AGL_LOG(2, <span class="stringliteral">"glvtable.c:allegro_gl_video_triangle\n"</span>);
<a name="l00808"></a>00808 vid = bmp->extra;
<a name="l00809"></a>00809
<a name="l00810"></a>00810 <span class="keywordflow">if</span> (is_sub_bitmap(bmp)) {
<a name="l00811"></a>00811 x1 += bmp->x_ofs;
<a name="l00812"></a>00812 x2 += bmp->x_ofs;
<a name="l00813"></a>00813 x3 += bmp->x_ofs;
<a name="l00814"></a>00814 y1 += bmp->y_ofs;
<a name="l00815"></a>00815 y2 += bmp->y_ofs;
<a name="l00816"></a>00816 y3 += bmp->y_ofs;
<a name="l00817"></a>00817 }
<a name="l00818"></a>00818
<a name="l00819"></a>00819 min_y = MIN(y1, MIN(y2, y3));
<a name="l00820"></a>00820 min_x = MIN(x1, MIN(x2, x3));
<a name="l00821"></a>00821 max_y = MAX(y1, MAX(y2, y3));
<a name="l00822"></a>00822 max_x = MAX(x1, MAX(x2, x3));
<a name="l00823"></a>00823
<a name="l00824"></a>00824 <span class="keywordflow">while</span> (vid) {
<a name="l00825"></a>00825 BITMAP *vbmp = vid->memory_copy;
<a name="l00826"></a>00826
<a name="l00827"></a>00827 <span class="keywordtype">int</span> _y1, _y2, _x1, _x2, _x3, _y3;
<a name="l00828"></a>00828 <span class="keywordflow">if</span> (vid->x_ofs > max_x || vid->y_ofs > max_y
<a name="l00829"></a>00829 || vid->x_ofs + vbmp->w <= min_x
<a name="l00830"></a>00830 || vid->y_ofs + vbmp->h <= min_y) {
<a name="l00831"></a>00831
<a name="l00832"></a>00832 vid = vid->next;
<a name="l00833"></a>00833 <span class="keywordflow">continue</span>;
<a name="l00834"></a>00834 }
<a name="l00835"></a>00835
<a name="l00836"></a>00836 _y1 = y1 - vid->y_ofs;
<a name="l00837"></a>00837 _y2 = y2 - vid->y_ofs;
<a name="l00838"></a>00838 _y3 = y3 - vid->y_ofs;
<a name="l00839"></a>00839 _x1 = x1 - vid->x_ofs;
<a name="l00840"></a>00840 _x2 = x2 - vid->x_ofs;
<a name="l00841"></a>00841 _x3 = x3 - vid->x_ofs;
<a name="l00842"></a>00842
<a name="l00843"></a>00843 set_clip_rect(vbmp, bmp->cl - vid->x_ofs, bmp->ct - vid->y_ofs,
<a name="l00844"></a>00844 bmp->cr - vid->x_ofs - 1, bmp->cb - vid->y_ofs - 1);
<a name="l00845"></a>00845
<a name="l00846"></a>00846 set_drawing_pattern();
<a name="l00847"></a>00847
<a name="l00848"></a>00848 triangle(vbmp, _x1, _y1, _x2, _y2, _x3, _y3, color);
<a name="l00849"></a>00849
<a name="l00850"></a>00850 unset_drawing_pattern();
<a name="l00851"></a>00851
<a name="l00852"></a>00852 set_clip_rect(vbmp, 0, 0, vbmp->w - 1, vbmp->h - 1);
<a name="l00853"></a>00853
<a name="l00854"></a>00854 <span class="comment">/* Not quite the minimal rectangle occupied by the triangle, but</span>
<a name="l00855"></a>00855 <span class="comment"> * pretty close */</span>
<a name="l00856"></a>00856 _y1 = MAX(0, min_y - vid->y_ofs);
<a name="l00857"></a>00857 _y2 = MIN(vbmp->h - 1, max_y - vid->y_ofs);
<a name="l00858"></a>00858 _x1 = MAX(0, min_x - vid->x_ofs);
<a name="l00859"></a>00859 _x2 = MIN(vbmp->w - 1, max_x - vid->x_ofs);
<a name="l00860"></a>00860
<a name="l00861"></a>00861 update_texture_memory(vid, _x1, _y1, _x2, _y2);
<a name="l00862"></a>00862
<a name="l00863"></a>00863 vid = vid->next;
<a name="l00864"></a>00864 }
<a name="l00865"></a>00865 }
<a name="l00866"></a>00866
<a name="l00867"></a>00867
<a name="l00868"></a>00868
<a name="l00869"></a>00869 <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_video_blit_from_memory_ex(BITMAP *source, BITMAP *dest,
<a name="l00870"></a>00870 <span class="keywordtype">int</span> source_x, <span class="keywordtype">int</span> source_y, <span class="keywordtype">int</span> dest_x, <span class="keywordtype">int</span> dest_y,
<a name="l00871"></a>00871 <span class="keywordtype">int</span> width, <span class="keywordtype">int</span> height, <span class="keywordtype">int</span> draw_type) {
<a name="l00872"></a>00872
<a name="l00873"></a>00873 AGL_VIDEO_BITMAP *vid;
<a name="l00874"></a>00874 BITMAP *dest_parent = dest;
<a name="l00875"></a>00875
<a name="l00876"></a>00876 <span class="keywordflow">if</span> (is_sub_bitmap (dest)) {
<a name="l00877"></a>00877 dest_x += dest->x_ofs;
<a name="l00878"></a>00878 dest_y += dest->y_ofs;
<a name="l00879"></a>00879 <span class="keywordflow">while</span> (dest_parent->id & BMP_ID_SUB)
<a name="l00880"></a>00880 dest_parent = (BITMAP *)dest_parent->extra;
<a name="l00881"></a>00881 }
<a name="l00882"></a>00882
<a name="l00883"></a>00883 <span class="keywordflow">if</span> (dest_x < dest->cl) {
<a name="l00884"></a>00884 dest_x = dest->cl;
<a name="l00885"></a>00885 }
<a name="l00886"></a>00886 <span class="keywordflow">if</span> (dest_y < dest->ct) {
<a name="l00887"></a>00887 dest_y = dest->ct;
<a name="l00888"></a>00888 }
<a name="l00889"></a>00889 <span class="keywordflow">if</span> (dest_x + width >= dest->cr) {
<a name="l00890"></a>00890 width = dest->cr - dest_x;
<a name="l00891"></a>00891 }
<a name="l00892"></a>00892 <span class="keywordflow">if</span> (dest_y + height >= dest->cb) {
<a name="l00893"></a>00893 height = dest->cb - dest_y;
<a name="l00894"></a>00894 }
<a name="l00895"></a>00895 <span class="keywordflow">if</span> (width < 1 || height < 1) {
<a name="l00896"></a>00896 <span class="keywordflow">return</span>;
<a name="l00897"></a>00897 }
<a name="l00898"></a>00898
<a name="l00899"></a>00899 vid = dest_parent->extra;
<a name="l00900"></a>00900
<a name="l00901"></a>00901 <span class="keywordflow">while</span> (vid) {
<a name="l00902"></a>00902 BITMAP *vbmp = vid->memory_copy;
<a name="l00903"></a>00903
<a name="l00904"></a>00904 <span class="keywordtype">int</span> _x, _y, _w, _h, _sx, _sy;
<a name="l00905"></a>00905 <span class="keywordflow">if</span> (vid->x_ofs >= dest_x + width || vid->y_ofs >= dest_y + height
<a name="l00906"></a>00906 || vid->x_ofs + vbmp->w <= dest_x
<a name="l00907"></a>00907 || vid->y_ofs + vbmp->h <= dest_y) {
<a name="l00908"></a>00908
<a name="l00909"></a>00909 vid = vid->next;
<a name="l00910"></a>00910 <span class="keywordflow">continue</span>;
<a name="l00911"></a>00911 }
<a name="l00912"></a>00912
<a name="l00913"></a>00913 _x = MAX (vid->x_ofs, dest_x) - vid->x_ofs;
<a name="l00914"></a>00914 _w = MIN (vid->x_ofs + vbmp->w, dest_x + width)
<a name="l00915"></a>00915 - vid->x_ofs - _x;
<a name="l00916"></a>00916 _y = MAX (vid->y_ofs, dest_y) - vid->y_ofs;
<a name="l00917"></a>00917 _h = MIN (vid->y_ofs + vbmp->h, dest_y + height)
<a name="l00918"></a>00918 - vid->y_ofs - _y;
<a name="l00919"></a>00919
<a name="l00920"></a>00920 _sx = source_x + vid->x_ofs + _x - dest_x;
<a name="l00921"></a>00921 _sy = source_y + vid->y_ofs + _y - dest_y;
<a name="l00922"></a>00922
<a name="l00923"></a>00923 <span class="keywordflow">if</span> (draw_type == BLIT) {
<a name="l00924"></a>00924 blit(source, vbmp, _sx, _sy, _x, _y, _w, _h);
<a name="l00925"></a>00925 }
<a name="l00926"></a>00926 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (draw_type == MASKED_BLIT) {
<a name="l00927"></a>00927 masked_blit(source, vbmp, _sx, _sy, _x, _y, _w, _h);
<a name="l00928"></a>00928 }
<a name="l00929"></a>00929 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (draw_type == TRANS) {
<a name="l00930"></a>00930 BITMAP *clip = create_sub_bitmap(source, _sx, _sy, _w, _h);
<a name="l00931"></a>00931 <span class="keywordflow">if</span> (!clip)
<a name="l00932"></a>00932 <span class="keywordflow">return</span>;
<a name="l00933"></a>00933 draw_trans_sprite(vbmp, clip, _x, _y);
<a name="l00934"></a>00934 destroy_bitmap(clip);
<a name="l00935"></a>00935 }
<a name="l00936"></a>00936
<a name="l00937"></a>00937 update_texture_memory(vid, _x, _y, _x + _w - 1, _y + _h - 1);
<a name="l00938"></a>00938
<a name="l00939"></a>00939 vid = vid->next;
<a name="l00940"></a>00940 }
<a name="l00941"></a>00941
<a name="l00942"></a>00942 <span class="keywordflow">return</span>;
<a name="l00943"></a>00943 }
<a name="l00944"></a>00944
<a name="l00945"></a>00945
<a name="l00946"></a>00946 <span class="keywordtype">void</span> allegro_gl_video_blit_from_memory(BITMAP *source, BITMAP *dest,
<a name="l00947"></a>00947 <span class="keywordtype">int</span> source_x, <span class="keywordtype">int</span> source_y, <span class="keywordtype">int</span> dest_x, <span class="keywordtype">int</span> dest_y,
<a name="l00948"></a>00948 <span class="keywordtype">int</span> width, <span class="keywordtype">int</span> height) {
<a name="l00949"></a>00949
<a name="l00950"></a>00950 allegro_gl_video_blit_from_memory_ex(source, dest, source_x, source_y,
<a name="l00951"></a>00951 dest_x, dest_y, width, height, BLIT);
<a name="l00952"></a>00952 <span class="keywordflow">return</span>;
<a name="l00953"></a>00953 }
<a name="l00954"></a>00954
<a name="l00955"></a>00955
<a name="l00956"></a>00956
<a name="l00957"></a>00957 <span class="keywordtype">void</span> allegro_gl_video_blit_to_memory(<span class="keyword">struct</span> BITMAP *source, <span class="keyword">struct</span> BITMAP *dest,
<a name="l00958"></a>00958 <span class="keywordtype">int</span> source_x, <span class="keywordtype">int</span> source_y, <span class="keywordtype">int</span> dest_x, <span class="keywordtype">int</span> dest_y,
<a name="l00959"></a>00959 <span class="keywordtype">int</span> width, <span class="keywordtype">int</span> height) {
<a name="l00960"></a>00960
<a name="l00961"></a>00961 AGL_VIDEO_BITMAP *vid;
<a name="l00962"></a>00962 BITMAP *source_parent = source;
<a name="l00963"></a>00963
<a name="l00964"></a>00964 AGL_LOG(2, <span class="stringliteral">"glvtable.c:allegro_gl_video_blit_to_memory\n"</span>);
<a name="l00965"></a>00965
<a name="l00966"></a>00966 <span class="keywordflow">if</span> (is_sub_bitmap(source)) {
<a name="l00967"></a>00967 source_x += source->x_ofs;
<a name="l00968"></a>00968 source_y += source->y_ofs;
<a name="l00969"></a>00969 <span class="keywordflow">while</span> (source_parent->id & BMP_ID_SUB)
<a name="l00970"></a>00970 source_parent = (BITMAP *)source_parent->extra;
<a name="l00971"></a>00971 }
<a name="l00972"></a>00972
<a name="l00973"></a>00973 vid = source_parent->extra;
<a name="l00974"></a>00974
<a name="l00975"></a>00975 <span class="keywordflow">while</span> (vid) {
<a name="l00976"></a>00976 BITMAP *vbmp = vid->memory_copy;
<a name="l00977"></a>00977 <span class="keywordtype">int</span> x, y, dx, dy, w, h;
<a name="l00978"></a>00978
<a name="l00979"></a>00979 x = MAX(source_x, vid->x_ofs) - vid->x_ofs;
<a name="l00980"></a>00980 y = MAX(source_y, vid->y_ofs) - vid->y_ofs;
<a name="l00981"></a>00981 w = MIN(vid->x_ofs + vbmp->w, source_x + width) - vid->x_ofs;
<a name="l00982"></a>00982 h = MIN(vid->y_ofs + vbmp->h, source_y + height) - vid->y_ofs;
<a name="l00983"></a>00983 dx = MAX(0, vid->x_ofs - source_x) + dest_x;
<a name="l00984"></a>00984 dy = MAX(0, vid->y_ofs - source_y) + dest_y;
<a name="l00985"></a>00985
<a name="l00986"></a>00986 blit(vbmp, dest, x, y, dx, dy, w, h);
<a name="l00987"></a>00987
<a name="l00988"></a>00988 vid = vid->next;
<a name="l00989"></a>00989 }
<a name="l00990"></a>00990
<a name="l00991"></a>00991 <span class="keywordflow">return</span>;
<a name="l00992"></a>00992 }
<a name="l00993"></a>00993
<a name="l00994"></a>00994
<a name="l00995"></a>00995
<a name="l00996"></a>00996 <span class="comment">/* Just like allegro_gl_video_blit_from_memory(), except that draws only to the</span>
<a name="l00997"></a>00997 <span class="comment"> * memory copy.</span>
<a name="l00998"></a>00998 <span class="comment"> */</span>
<a name="l00999"></a>00999 <span class="keyword">static</span> <span class="keywordtype">void</span> __video_update_memory_copy(BITMAP *source, BITMAP *dest,
<a name="l01000"></a>01000 <span class="keywordtype">int</span> source_x, <span class="keywordtype">int</span> source_y, <span class="keywordtype">int</span> dest_x, <span class="keywordtype">int</span> dest_y,
<a name="l01001"></a>01001 <span class="keywordtype">int</span> width, <span class="keywordtype">int</span> height, <span class="keywordtype">int</span> draw_type) {
<a name="l01002"></a>01002 AGL_VIDEO_BITMAP *vid;
<a name="l01003"></a>01003 BITMAP *dest_parent = dest;
<a name="l01004"></a>01004
<a name="l01005"></a>01005 <span class="keywordflow">if</span> (is_sub_bitmap (dest)) {
<a name="l01006"></a>01006 dest_x += dest->x_ofs;
<a name="l01007"></a>01007 dest_y += dest->y_ofs;
<a name="l01008"></a>01008 <span class="keywordflow">while</span> (dest_parent->id & BMP_ID_SUB)
<a name="l01009"></a>01009 dest_parent = (BITMAP *)dest_parent->extra;
<a name="l01010"></a>01010 }
<a name="l01011"></a>01011
<a name="l01012"></a>01012 <span class="keywordflow">if</span> (dest_x < dest->cl) {
<a name="l01013"></a>01013 dest_x = dest->cl;
<a name="l01014"></a>01014 }
<a name="l01015"></a>01015 <span class="keywordflow">if</span> (dest_y < dest->ct) {
<a name="l01016"></a>01016 dest_y = dest->ct;
<a name="l01017"></a>01017 }
<a name="l01018"></a>01018 <span class="keywordflow">if</span> (dest_x + width >= dest->cr) {
<a name="l01019"></a>01019 width = dest->cr - dest_x;
<a name="l01020"></a>01020 }
<a name="l01021"></a>01021 <span class="keywordflow">if</span> (dest_y + height >= dest->cb) {
<a name="l01022"></a>01022 height = dest->cb - dest_y;
<a name="l01023"></a>01023 }
<a name="l01024"></a>01024 <span class="keywordflow">if</span> (width < 1 || height < 1) {
<a name="l01025"></a>01025 <span class="keywordflow">return</span>;
<a name="l01026"></a>01026 }
<a name="l01027"></a>01027
<a name="l01028"></a>01028 vid = dest_parent->extra;
<a name="l01029"></a>01029
<a name="l01030"></a>01030 <span class="keywordflow">while</span> (vid) {
<a name="l01031"></a>01031 <span class="keywordtype">int</span> sx, sy;
<a name="l01032"></a>01032 BITMAP *vbmp = vid->memory_copy;
<a name="l01033"></a>01033
<a name="l01034"></a>01034 <span class="keywordtype">int</span> dx, dy, w, h;
<a name="l01035"></a>01035 <span class="keywordflow">if</span> (vid->x_ofs >= dest_x + width || vid->y_ofs >= dest_y + height
<a name="l01036"></a>01036 || vid->x_ofs + vbmp->w <= dest_x
<a name="l01037"></a>01037 || vid->y_ofs + vbmp->h <= dest_y) {
<a name="l01038"></a>01038
<a name="l01039"></a>01039 vid = vid->next;
<a name="l01040"></a>01040 <span class="keywordflow">continue</span>;
<a name="l01041"></a>01041 }
<a name="l01042"></a>01042
<a name="l01043"></a>01043 dx = MAX (vid->x_ofs, dest_x) - vid->x_ofs;
<a name="l01044"></a>01044 w = MIN (vid->x_ofs + vbmp->w, dest_x + width)
<a name="l01045"></a>01045 - vid->x_ofs - dx;
<a name="l01046"></a>01046 dy = MAX (vid->y_ofs, dest_y) - vid->y_ofs;
<a name="l01047"></a>01047 h = MIN (vid->y_ofs + vbmp->h, dest_y + height)
<a name="l01048"></a>01048 - vid->y_ofs - dy;
<a name="l01049"></a>01049
<a name="l01050"></a>01050 sx = source_x + vid->x_ofs + dx - dest_x;
<a name="l01051"></a>01051 sy = source_y + vid->y_ofs + dy - dest_y;
<a name="l01052"></a>01052
<a name="l01053"></a>01053 <span class="keywordflow">if</span> (draw_type == MASKED_BLIT) {
<a name="l01054"></a>01054 masked_blit(source, vbmp, sx, sy, dx, dy, w, h);
<a name="l01055"></a>01055 }
<a name="l01056"></a>01056 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (draw_type == BLIT) {
<a name="l01057"></a>01057 blit(source, vbmp, sx, sy, dx, dy, w, h);
<a name="l01058"></a>01058 }
<a name="l01059"></a>01059 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (draw_type == TRANS) {
<a name="l01060"></a>01060 BITMAP *clip = create_sub_bitmap(source, sx, sy, w, h);
<a name="l01061"></a>01061 <span class="keywordflow">if</span> (!clip)
<a name="l01062"></a>01062 <span class="keywordflow">return</span>;
<a name="l01063"></a>01063 draw_trans_sprite(vbmp, clip, dx, dy);
<a name="l01064"></a>01064 destroy_bitmap(clip);
<a name="l01065"></a>01065 }
<a name="l01066"></a>01066
<a name="l01067"></a>01067 vid = vid->next;
<a name="l01068"></a>01068 }
<a name="l01069"></a>01069
<a name="l01070"></a>01070 <span class="keywordflow">return</span>;
<a name="l01071"></a>01071 }
<a name="l01072"></a>01072
<a name="l01073"></a>01073
<a name="l01074"></a>01074 <span class="preprocessor">#define FOR_EACH_TEXTURE_FRAGMENT( \</span>
<a name="l01075"></a>01075 <span class="preprocessor"> screen_blit_from_vid, </span><span class="comment">/* used when dest is FBO to blit to texture </span>
<a name="l01076"></a>01076 <span class="comment"> memory from video bitmap */</span> \
<a name="l01077"></a>01077 screen_blit_from_mem, <span class="comment">/* used when dest is FBO to blit to texture</span>
<a name="l01078"></a>01078 <span class="comment"> memory from memory bitmap */</span> \
<a name="l01079"></a>01079 mem_copy_blit_from_vid, <span class="comment">/* used to update the memory copy of the</span>
<a name="l01080"></a>01080 <span class="comment"> dest from the source video bitmap */</span> \
<a name="l01081"></a>01081 mem_copy_blit_from_mem, <span class="comment">/* used to update the memory copy of the</span>
<a name="l01082"></a>01082 <span class="comment"> dest from the source memory bitmap */</span> \
<a name="l01083"></a>01083 vid_and_mem_copy_blit_from_vid, <span class="comment">/* used when dest is not FBO, draws to both</span>
<a name="l01084"></a>01084 <span class="comment"> memory copy and texute memory of the dest,</span>
<a name="l01085"></a>01085 <span class="comment"> from video bitmap source*/</span> \
<a name="l01086"></a>01086 vid_and_mem_copy_blit_from_mem) <span class="comment">/* used when dest is not FBO, draws to both</span>
<a name="l01087"></a>01087 <span class="comment"> memory copy and texute memory of the dest,</span>
<a name="l01088"></a>01088 <span class="comment"> from memory bitmap source */</span> \
<a name="l01089"></a>01089 { \
<a name="l01090"></a>01090 int used_fbo = FALSE; \
<a name="l01091"></a>01091 AGL_VIDEO_BITMAP *vid; \
<a name="l01092"></a>01092 \
<a name="l01093"></a>01093 vid = dest->extra; \
<a name="l01094"></a>01094 if (vid->fbo) { \
<a name="l01095"></a>01095 int sx, sy; \
<a name="l01096"></a>01096 int dx, dy; \
<a name="l01097"></a>01097 int w, h; \
<a name="l01098"></a>01098 \
<a name="l01099"></a>01099 static GLint v[4]; \
<a name="l01100"></a>01100 static double allegro_gl_projection_matrix[16]; \
<a name="l01101"></a>01101 static double allegro_gl_modelview_matrix[16]; \
<a name="l01102"></a>01102 \
<a name="l01103"></a>01103 glGetIntegerv(GL_VIEWPORT, &v[0]); \
<a name="l01104"></a>01104 glMatrixMode(GL_MODELVIEW); \
<a name="l01105"></a>01105 glGetDoublev(GL_MODELVIEW_MATRIX, allegro_gl_modelview_matrix); \
<a name="l01106"></a>01106 glMatrixMode(GL_PROJECTION); \
<a name="l01107"></a>01107 glGetDoublev(GL_PROJECTION_MATRIX, allegro_gl_projection_matrix); \
<a name="l01108"></a>01108 \
<a name="l01109"></a>01109 while (vid) { \
<a name="l01110"></a>01110 if (dest_x >= vid->x_ofs + vid->memory_copy->w || \
<a name="l01111"></a>01111 dest_y >= vid->y_ofs + vid->memory_copy->h || \
<a name="l01112"></a>01112 vid->x_ofs >= dest_x + width || \
<a name="l01113"></a>01113 vid->y_ofs >= dest_y + height) { \
<a name="l01114"></a>01114 vid = vid->next; \
<a name="l01115"></a>01115 continue; \
<a name="l01116"></a>01116 } \
<a name="l01117"></a>01117 \
<a name="l01118"></a>01118 dx = MAX(vid->x_ofs, dest_x) - vid->x_ofs; \
<a name="l01119"></a>01119 w = MIN(vid->x_ofs + vid->memory_copy->w, dest_x + width) \
<a name="l01120"></a>01120 - vid->x_ofs - dx; \
<a name="l01121"></a>01121 dy = MAX(vid->y_ofs, dest_y) - vid->y_ofs; \
<a name="l01122"></a>01122 h = MIN(vid->y_ofs + vid->memory_copy->h, dest_y + height) \
<a name="l01123"></a>01123 - vid->y_ofs - dy; \
<a name="l01124"></a>01124 \
<a name="l01125"></a>01125 sx = source_x + vid->x_ofs + dx - dest_x; \
<a name="l01126"></a>01126 sy = source_y + vid->y_ofs + dy - dest_y; \
<a name="l01127"></a>01127 \
<a name="l01128"></a>01128 glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, vid->fbo); \
<a name="l01129"></a>01129 \
<a name="l01130"></a>01130 glViewport(0, 0, vid->memory_copy->w, vid->memory_copy->h); \
<a name="l01131"></a>01131 glMatrixMode(GL_PROJECTION); \
<a name="l01132"></a>01132 glLoadIdentity(); \
<a name="l01133"></a>01133 gluOrtho2D(0, vid->memory_copy->w, 0, vid->memory_copy->h); \
<a name="l01134"></a>01134 glMatrixMode(GL_MODELVIEW); \
<a name="l01135"></a>01135 \
<a name="l01136"></a>01136 if (is_memory_bitmap(source)) { \
<a name="l01137"></a>01137 screen_blit_from_mem; \
<a name="l01138"></a>01138 } \
<a name="l01139"></a>01139 else { \
<a name="l01140"></a>01140 screen_blit_from_vid; \
<a name="l01141"></a>01141 } \
<a name="l01142"></a>01142 \
<a name="l01143"></a>01143 vid = vid->next; \
<a name="l01144"></a>01144 } \
<a name="l01145"></a>01145 \
<a name="l01146"></a>01146 glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0); \
<a name="l01147"></a>01147 \
<a name="l01148"></a>01148 glViewport(v[0], v[1], v[2], v[3]); \
<a name="l01149"></a>01149 glMatrixMode(GL_PROJECTION); \
<a name="l01150"></a>01150 glLoadMatrixd(allegro_gl_projection_matrix); \
<a name="l01151"></a>01151 glMatrixMode(GL_MODELVIEW); \
<a name="l01152"></a>01152 glLoadMatrixd(allegro_gl_modelview_matrix); \
<a name="l01153"></a>01153 \
<a name="l01154"></a>01154 used_fbo = TRUE; \
<a name="l01155"></a>01155 } \
<a name="l01156"></a>01156 \
<a name="l01157"></a>01157 if (is_video_bitmap(source)) { \
<a name="l01158"></a>01158 int sx, sy; \
<a name="l01159"></a>01159 int dx, dy; \
<a name="l01160"></a>01160 int w, h; \
<a name="l01161"></a>01161 \
<a name="l01162"></a>01162 vid = source->extra; \
<a name="l01163"></a>01163 \
<a name="l01164"></a>01164 while (vid) { \
<a name="l01165"></a>01165 if (source_x >= vid->x_ofs + vid->memory_copy->w || \
<a name="l01166"></a>01166 source_y >= vid->y_ofs + vid->memory_copy->h || \
<a name="l01167"></a>01167 vid->x_ofs >= source_x + width || \
<a name="l01168"></a>01168 vid->y_ofs >= source_y + height) { \
<a name="l01169"></a>01169 vid = vid->next; \
<a name="l01170"></a>01170 continue; \
<a name="l01171"></a>01171 } \
<a name="l01172"></a>01172 \
<a name="l01173"></a>01173 sx = MAX(vid->x_ofs, source_x) - vid->x_ofs; \
<a name="l01174"></a>01174 w = MIN(vid->x_ofs + vid->memory_copy->w, source_x + width) \
<a name="l01175"></a>01175 - vid->x_ofs - sx; \
<a name="l01176"></a>01176 sy = MAX(vid->y_ofs, source_y) - vid->y_ofs; \
<a name="l01177"></a>01177 h = MIN(vid->y_ofs + vid->memory_copy->h, source_y + height) \
<a name="l01178"></a>01178 - vid->y_ofs - sy; \
<a name="l01179"></a>01179 \
<a name="l01180"></a>01180 dx = dest_x + vid->x_ofs + sx - source_x; \
<a name="l01181"></a>01181 dy = dest_y + vid->y_ofs + sy - source_y; \
<a name="l01182"></a>01182 \
<a name="l01183"></a>01183 if (used_fbo) { \
<a name="l01184"></a>01184 mem_copy_blit_from_vid; \
<a name="l01185"></a>01185 } \
<a name="l01186"></a>01186 else { \
<a name="l01187"></a>01187 vid_and_mem_copy_blit_from_vid; \
<a name="l01188"></a>01188 } \
<a name="l01189"></a>01189 \
<a name="l01190"></a>01190 vid = vid->next; \
<a name="l01191"></a>01191 } \
<a name="l01192"></a>01192 } \
<a name="l01193"></a>01193 else if (is_memory_bitmap(source)) { \
<a name="l01194"></a>01194 if (used_fbo) { \
<a name="l01195"></a>01195 mem_copy_blit_from_mem; \
<a name="l01196"></a>01196 } \
<a name="l01197"></a>01197 else { \
<a name="l01198"></a>01198 vid_and_mem_copy_blit_from_mem; \
<a name="l01199"></a>01199 } \
<a name="l01200"></a>01200 } \
<a name="l01201"></a>01201 }
<a name="l01202"></a>01202
<a name="l01203"></a>01203
<a name="l01204"></a>01204 <span class="comment">/* allegro_gl_video_blit_to_self:</span>
<a name="l01205"></a>01205 <span class="comment"> * blit() overload for video -> video blits</span>
<a name="l01206"></a>01206 <span class="comment"> */</span>
<a name="l01207"></a>01207 <span class="keywordtype">void</span> allegro_gl_video_blit_to_self(<span class="keyword">struct</span> BITMAP *source, <span class="keyword">struct</span> BITMAP *dest,
<a name="l01208"></a>01208 <span class="keywordtype">int</span> source_x, <span class="keywordtype">int</span> source_y, <span class="keywordtype">int</span> dest_x, <span class="keywordtype">int</span> dest_y, <span class="keywordtype">int</span> width, <span class="keywordtype">int</span> height) {
<a name="l01209"></a>01209
<a name="l01210"></a>01210 FOR_EACH_TEXTURE_FRAGMENT (
<a name="l01211"></a>01211 allegro_gl_screen_blit_to_self(source, screen, sx, sy, dx, dy, w, h),
<a name="l01212"></a>01212 allegro_gl_screen_blit_to_self(source, screen, sx, sy, dx, dy, w, h),
<a name="l01213"></a>01213 __video_update_memory_copy(vid->memory_copy, dest, sx, sy, dx, dy, w, h, BLIT),
<a name="l01214"></a>01214 __video_update_memory_copy(source, dest, source_x, source_y, dest_x, dest_y, width, height, BLIT),
<a name="l01215"></a>01215 allegro_gl_video_blit_from_memory(vid->memory_copy, dest, sx, sy, dx, dy, w, h),
<a name="l01216"></a>01216 allegro_gl_video_blit_from_memory(source, dest, source_x, source_y, dest_x, dest_y, width, height)
<a name="l01217"></a>01217 )
<a name="l01218"></a>01218 }
<a name="l01219"></a>01219
<a name="l01220"></a>01220
<a name="l01221"></a>01221 <span class="keyword">static</span> <span class="keywordtype">void</span> do_masked_blit_video(<span class="keyword">struct</span> BITMAP *source, <span class="keyword">struct</span> BITMAP *dest,
<a name="l01222"></a>01222 <span class="keywordtype">int</span> source_x, <span class="keywordtype">int</span> source_y, <span class="keywordtype">int</span> dest_x, <span class="keywordtype">int</span> dest_y,
<a name="l01223"></a>01223 <span class="keywordtype">int</span> width, <span class="keywordtype">int</span> height, <span class="keywordtype">int</span> flip_dir, <span class="keywordtype">int</span> blit_type) {
<a name="l01224"></a>01224
<a name="l01225"></a>01225 FOR_EACH_TEXTURE_FRAGMENT (
<a name="l01226"></a>01226 do_masked_blit_screen(source, screen, sx, sy, dx, dy, w, h, flip_dir, blit_type),
<a name="l01227"></a>01227 do_masked_blit_screen(source, screen, sx, sy, dx, dy, w, h, flip_dir, blit_type),
<a name="l01228"></a>01228 __video_update_memory_copy(vid->memory_copy, dest, sx, sy, dx, dy, w, h, MASKED_BLIT),
<a name="l01229"></a>01229 __video_update_memory_copy(source, dest, source_x, source_y, dest_x, dest_y, width, height, MASKED_BLIT),
<a name="l01230"></a>01230 allegro_gl_video_blit_from_memory_ex(vid->memory_copy, dest, sx, sy, dx, dy, w, h, MASKED_BLIT),
<a name="l01231"></a>01231 allegro_gl_video_blit_from_memory_ex(source, dest, source_x, source_y, dest_x, dest_y, width, height, MASKED_BLIT)
<a name="l01232"></a>01232 )
<a name="l01233"></a>01233 }
<a name="l01234"></a>01234
<a name="l01235"></a>01235
<a name="l01236"></a>01236 <span class="comment">/* allegro_gl_video_masked_blit:</span>
<a name="l01237"></a>01237 <span class="comment"> * masked_blit() overload for video -> video masked blits</span>
<a name="l01238"></a>01238 <span class="comment"> */</span>
<a name="l01239"></a>01239 <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_video_masked_blit(<span class="keyword">struct</span> BITMAP *source,
<a name="l01240"></a>01240 <span class="keyword">struct</span> BITMAP *dest, <span class="keywordtype">int</span> source_x, <span class="keywordtype">int</span> source_y,
<a name="l01241"></a>01241 <span class="keywordtype">int</span> dest_x, <span class="keywordtype">int</span> dest_y, <span class="keywordtype">int</span> width, <span class="keywordtype">int</span> height) {
<a name="l01242"></a>01242 do_masked_blit_video(source, dest, source_x, source_y, dest_x, dest_y,
<a name="l01243"></a>01243 width, height, FALSE, AGL_REGULAR_BMP | AGL_NO_ROTATION);
<a name="l01244"></a>01244
<a name="l01245"></a>01245 <span class="keywordflow">return</span>;
<a name="l01246"></a>01246 }
<a name="l01247"></a>01247
<a name="l01248"></a>01248
<a name="l01249"></a>01249 <span class="comment">/* allegro_gl_video_draw_sprite:</span>
<a name="l01250"></a>01250 <span class="comment"> * draw_sprite() overload for video -> video sprite drawing</span>
<a name="l01251"></a>01251 <span class="comment"> */</span>
<a name="l01252"></a>01252 <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_video_draw_sprite(<span class="keyword">struct</span> BITMAP *bmp,
<a name="l01253"></a>01253 <span class="keyword">struct</span> BITMAP *sprite, <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y) {
<a name="l01254"></a>01254
<a name="l01255"></a>01255 do_masked_blit_video(sprite, bmp, 0, 0, x, y, sprite->w, sprite->h,
<a name="l01256"></a>01256 FALSE, AGL_NO_ROTATION);
<a name="l01257"></a>01257
<a name="l01258"></a>01258 <span class="keywordflow">return</span>;
<a name="l01259"></a>01259 }
<a name="l01260"></a>01260
<a name="l01261"></a>01261
<a name="l01262"></a>01262 <span class="comment">/* allegro_gl_video_draw_sprite_v_flip:</span>
<a name="l01263"></a>01263 <span class="comment"> * draw_sprite_v_flip() overload for video -> video blits</span>
<a name="l01264"></a>01264 <span class="comment"> * FIXME: Broken if the bitmap was split into multiple textures.</span>
<a name="l01265"></a>01265 <span class="comment"> * FIXME: Doesn't apply rotation and scale to the memory copy</span>
<a name="l01266"></a>01266 <span class="comment"> */</span>
<a name="l01267"></a>01267 <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_video_draw_sprite_v_flip(<span class="keyword">struct</span> BITMAP *bmp,
<a name="l01268"></a>01268 <span class="keyword">struct</span> BITMAP *sprite, <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y) {
<a name="l01269"></a>01269
<a name="l01270"></a>01270 do_masked_blit_video(sprite, bmp, 0, 0, x, y, sprite->w, sprite->h,
<a name="l01271"></a>01271 AGL_V_FLIP, AGL_NO_ROTATION);
<a name="l01272"></a>01272
<a name="l01273"></a>01273 <span class="keywordflow">return</span>;
<a name="l01274"></a>01274 }
<a name="l01275"></a>01275
<a name="l01276"></a>01276
<a name="l01277"></a>01277 <span class="comment">/* allegro_gl_video_draw_sprite_h_flip:</span>
<a name="l01278"></a>01278 <span class="comment"> * draw_sprite_v_flip() overload for video -> video blits</span>
<a name="l01279"></a>01279 <span class="comment"> * FIXME: Broken if the bitmap was split into multiple textures.</span>
<a name="l01280"></a>01280 <span class="comment"> * FIXME: Doesn't apply rotation and scale to the memory copy</span>
<a name="l01281"></a>01281 <span class="comment"> */</span>
<a name="l01282"></a>01282 <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_video_draw_sprite_h_flip(<span class="keyword">struct</span> BITMAP *bmp,
<a name="l01283"></a>01283 <span class="keyword">struct</span> BITMAP *sprite, <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y) {
<a name="l01284"></a>01284
<a name="l01285"></a>01285 do_masked_blit_video(sprite, bmp, 0, 0, x, y, sprite->w, sprite->h,
<a name="l01286"></a>01286 AGL_H_FLIP, AGL_NO_ROTATION);
<a name="l01287"></a>01287
<a name="l01288"></a>01288 <span class="keywordflow">return</span>;
<a name="l01289"></a>01289 }
<a name="l01290"></a>01290
<a name="l01291"></a>01291
<a name="l01292"></a>01292 <span class="comment">/* allegro_gl_video_draw_sprite_vh_flip:</span>
<a name="l01293"></a>01293 <span class="comment"> * draw_sprite_vh_flip() overload for video -> video blits</span>
<a name="l01294"></a>01294 <span class="comment"> * FIXME: Broken if the bitmap was split into multiple textures.</span>
<a name="l01295"></a>01295 <span class="comment"> * FIXME: Doesn't apply rotation and scale to the memory copy</span>
<a name="l01296"></a>01296 <span class="comment"> */</span>
<a name="l01297"></a>01297 <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_video_draw_sprite_vh_flip(<span class="keyword">struct</span> BITMAP *bmp,
<a name="l01298"></a>01298 <span class="keyword">struct</span> BITMAP *sprite, <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y) {
<a name="l01299"></a>01299
<a name="l01300"></a>01300 do_masked_blit_video(sprite, bmp, 0, 0, x, y, sprite->w, sprite->h,
<a name="l01301"></a>01301 AGL_V_FLIP | AGL_H_FLIP, AGL_NO_ROTATION);
<a name="l01302"></a>01302
<a name="l01303"></a>01303 <span class="keywordflow">return</span>;
<a name="l01304"></a>01304 }
<a name="l01305"></a>01305
<a name="l01306"></a>01306
<a name="l01307"></a>01307 <span class="comment">/* allegro_gl_video_pivot_scaled_sprite_flip:</span>
<a name="l01308"></a>01308 <span class="comment"> * FIXME: Broken if the bitmap was split into multiple textures.</span>
<a name="l01309"></a>01309 <span class="comment"> * FIXME: Doesn't apply rotation and scale to the memory copy</span>
<a name="l01310"></a>01310 <span class="comment"> * FIXME: Doesn't work for when FBO is not available.</span>
<a name="l01311"></a>01311 <span class="comment"> */</span>
<a name="l01312"></a>01312 <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_video_pivot_scaled_sprite_flip(<span class="keyword">struct</span> BITMAP *bmp,
<a name="l01313"></a>01313 <span class="keyword">struct</span> BITMAP *sprite, fixed x, fixed y, fixed cx, fixed cy,
<a name="l01314"></a>01314 fixed angle, fixed scale, <span class="keywordtype">int</span> v_flip) {
<a name="l01315"></a>01315 <span class="keywordtype">double</span> dscale = fixtof(scale);
<a name="l01316"></a>01316 GLint matrix_mode;
<a name="l01317"></a>01317
<a name="l01318"></a>01318 <span class="preprocessor">#define BIN_2_DEG(x) (-(x) * 180.0 / 128)</span>
<a name="l01319"></a>01319 <span class="preprocessor"></span>
<a name="l01320"></a>01320 glGetIntegerv(GL_MATRIX_MODE, &matrix_mode);
<a name="l01321"></a>01321 glMatrixMode(GL_MODELVIEW);
<a name="l01322"></a>01322 glPushMatrix();
<a name="l01323"></a>01323 glTranslated(fixtof(x), fixtof(y), 0.);
<a name="l01324"></a>01324 glRotated(BIN_2_DEG(fixtof(angle)), 0., 0., -1.);
<a name="l01325"></a>01325 glScaled(dscale, dscale, dscale);
<a name="l01326"></a>01326 glTranslated(-fixtof(x+cx), -fixtof(y+cy), 0.);
<a name="l01327"></a>01327
<a name="l01328"></a>01328 do_masked_blit_video(sprite, bmp, 0, 0, fixtoi(x), fixtoi(y),
<a name="l01329"></a>01329 sprite->w, sprite->h, v_flip ? AGL_V_FLIP : FALSE, FALSE);
<a name="l01330"></a>01330 glPopMatrix();
<a name="l01331"></a>01331 glMatrixMode(matrix_mode);
<a name="l01332"></a>01332
<a name="l01333"></a>01333 <span class="preprocessor">#undef BIN_2_DEG</span>
<a name="l01334"></a>01334 <span class="preprocessor"></span>
<a name="l01335"></a>01335 <span class="keywordflow">return</span>;
<a name="l01336"></a>01336 }
<a name="l01337"></a>01337
<a name="l01338"></a>01338
<a name="l01339"></a>01339 <span class="comment">/* allegro_gl_video_do_stretch_blit:</span>
<a name="l01340"></a>01340 <span class="comment"> * overload for all kind of video -> video and video -> screen stretchers</span>
<a name="l01341"></a>01341 <span class="comment"> * FIXME: Doesn't apply scale to the memory copy</span>
<a name="l01342"></a>01342 <span class="comment"> * FIXME: Doesn't work for video->video when FBO is not available.</span>
<a name="l01343"></a>01343 <span class="comment"> */</span>
<a name="l01344"></a>01344 <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_video_do_stretch_blit(BITMAP *source, BITMAP *dest,
<a name="l01345"></a>01345 <span class="keywordtype">int</span> source_x, <span class="keywordtype">int</span> source_y, <span class="keywordtype">int</span> source_width, <span class="keywordtype">int</span> source_height,
<a name="l01346"></a>01346 <span class="keywordtype">int</span> dest_x, <span class="keywordtype">int</span> dest_y, <span class="keywordtype">int</span> dest_width, <span class="keywordtype">int</span> dest_height,
<a name="l01347"></a>01347 <span class="keywordtype">int</span> masked) {
<a name="l01348"></a>01348 <span class="comment">/* note: src is a video bitmap, dest is not a memory bitmap */</span>
<a name="l01349"></a>01349
<a name="l01350"></a>01350 <span class="keywordtype">double</span> scalew = ((double)dest_width) / source_width;
<a name="l01351"></a>01351 <span class="keywordtype">double</span> scaleh = ((double)dest_height) / source_height;
<a name="l01352"></a>01352
<a name="l01353"></a>01353 GLint matrix_mode;
<a name="l01354"></a>01354
<a name="l01355"></a>01355 <span class="comment">/* BITMAP_BLIT_CLIP macro from glvtable.c is no good for scaled images. */</span>
<a name="l01356"></a>01356 <span class="keywordflow">if</span> (dest->clip) {
<a name="l01357"></a>01357 <span class="keywordflow">if</span> ((dest_x >= dest->cr) || (dest_y >= dest->cb)
<a name="l01358"></a>01358 || (dest_x + dest_width < dest->cl) || (dest_y + dest_height < dest->ct)) {
<a name="l01359"></a>01359 <span class="keywordflow">return</span>;
<a name="l01360"></a>01360 }
<a name="l01361"></a>01361 <span class="keywordflow">if</span> (dest_x < dest->cl) {
<a name="l01362"></a>01362 source_x -= (dest_x - dest->cl) / scalew;
<a name="l01363"></a>01363 dest_x = dest->cl;
<a name="l01364"></a>01364 }
<a name="l01365"></a>01365 <span class="keywordflow">if</span> (dest_y < dest->ct) {
<a name="l01366"></a>01366 source_y -= (dest_y - dest->ct) / scaleh;
<a name="l01367"></a>01367 dest_y = dest->ct;
<a name="l01368"></a>01368 }
<a name="l01369"></a>01369 <span class="keywordflow">if</span> (dest_x + dest_width > dest->cr) {
<a name="l01370"></a>01370 source_width -= (dest_x + dest_width - dest->cr) / scalew;
<a name="l01371"></a>01371 dest_width = dest->cr - dest_x;
<a name="l01372"></a>01372 }
<a name="l01373"></a>01373 <span class="keywordflow">if</span> (dest_y + dest_height > dest->cb) {
<a name="l01374"></a>01374 source_height -= (dest_y + dest_height - dest->cb) / scaleh;
<a name="l01375"></a>01375 dest_height = dest->cb - dest_y;
<a name="l01376"></a>01376 }
<a name="l01377"></a>01377 }
<a name="l01378"></a>01378
<a name="l01379"></a>01379 glGetIntegerv(GL_MATRIX_MODE, &matrix_mode);
<a name="l01380"></a>01380 glMatrixMode(GL_MODELVIEW);
<a name="l01381"></a>01381 glPushMatrix();
<a name="l01382"></a>01382 glTranslated(dest_x, dest_y, 0.);
<a name="l01383"></a>01383 glScaled(scalew, scaleh, 1.);
<a name="l01384"></a>01384 glTranslated(-dest_x, -dest_y, 0.);
<a name="l01385"></a>01385
<a name="l01386"></a>01386 <span class="keywordflow">if</span> (masked) {
<a name="l01387"></a>01387 <span class="keywordflow">if</span> (is_screen_bitmap(dest)) {
<a name="l01388"></a>01388 do_masked_blit_screen(source, dest, source_x, source_y,
<a name="l01389"></a>01389 dest_x, dest_y, source_width, source_height,
<a name="l01390"></a>01390 FALSE, AGL_REGULAR_BMP);
<a name="l01391"></a>01391 }
<a name="l01392"></a>01392 <span class="keywordflow">else</span> {
<a name="l01393"></a>01393 do_masked_blit_video(source, dest, source_x, source_y,
<a name="l01394"></a>01394 dest_x, dest_y, source_width, source_height,
<a name="l01395"></a>01395 FALSE, AGL_REGULAR_BMP);
<a name="l01396"></a>01396 }
<a name="l01397"></a>01397 }
<a name="l01398"></a>01398 <span class="keywordflow">else</span> {
<a name="l01399"></a>01399 allegro_gl_screen_blit_to_self(source, dest, source_x, source_y,
<a name="l01400"></a>01400 dest_x, dest_y, source_width, source_height);
<a name="l01401"></a>01401 }
<a name="l01402"></a>01402
<a name="l01403"></a>01403 glPopMatrix();
<a name="l01404"></a>01404 glMatrixMode(matrix_mode);
<a name="l01405"></a>01405
<a name="l01406"></a>01406 <span class="keywordflow">return</span>;
<a name="l01407"></a>01407 }
<a name="l01408"></a>01408
<a name="l01409"></a>01409
<a name="l01410"></a>01410
<a name="l01411"></a>01411 <span class="comment">/* allegro_gl_video_draw_trans_rgba_sprite:</span>
<a name="l01412"></a>01412 <span class="comment"> * draw_trans_sprite() overload for video -> video drawing</span>
<a name="l01413"></a>01413 <span class="comment"> */</span>
<a name="l01414"></a>01414 <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_video_draw_trans_rgba_sprite(BITMAP *bmp,
<a name="l01415"></a>01415 BITMAP *sprite, <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y) {
<a name="l01416"></a>01416 <span class="comment">/* Adapt variables for FOR_EACH_TEXTURE_FRAGMENT macro. */</span>
<a name="l01417"></a>01417 BITMAP *source = sprite;
<a name="l01418"></a>01418 BITMAP *dest = bmp;
<a name="l01419"></a>01419 <span class="keywordtype">int</span> dest_x = x;
<a name="l01420"></a>01420 <span class="keywordtype">int</span> dest_y = y;
<a name="l01421"></a>01421 <span class="keywordtype">int</span> source_x = 0;
<a name="l01422"></a>01422 <span class="keywordtype">int</span> source_y = 0;
<a name="l01423"></a>01423 <span class="keywordtype">int</span> width = sprite->w;
<a name="l01424"></a>01424 <span class="keywordtype">int</span> height = sprite->h;
<a name="l01425"></a>01425 GLint format = __allegro_gl_get_bitmap_color_format(sprite, <a class="code" href="group__texture.html#ga8cc859eadf1610b424cd9188e716f432" title="Tell AllegroGL that the bitmap had an alpha channel, so it should be preserved when generating the te...">AGL_TEXTURE_HAS_ALPHA</a>);
<a name="l01426"></a>01426 GLint type = __allegro_gl_get_bitmap_type(sprite, 0);
<a name="l01427"></a>01427
<a name="l01428"></a>01428 <span class="keywordflow">if</span> (__allegro_gl_blit_operation == AGL_OP_LOGIC_OP)
<a name="l01429"></a>01429 glEnable(GL_COLOR_LOGIC_OP);
<a name="l01430"></a>01430 <span class="keywordflow">else</span>
<a name="l01431"></a>01431 glEnable(GL_BLEND);
<a name="l01432"></a>01432
<a name="l01433"></a>01433 FOR_EACH_TEXTURE_FRAGMENT (
<a name="l01434"></a>01434 allegro_gl_screen_blit_to_self(source, screen, sx, sy, dx, dy, w, h),
<a name="l01435"></a>01435 allegro_gl_upload_and_display_texture(sprite, sx, sy, dx, dy, w, h, 0, format, type),
<a name="l01436"></a>01436 __video_update_memory_copy(vid->memory_copy, dest, sx, sy, dx, dy, w, h, TRANS),
<a name="l01437"></a>01437 __video_update_memory_copy(source, dest, 0, 0, x, y, sprite->w, sprite->h, TRANS),
<a name="l01438"></a>01438 allegro_gl_video_blit_from_memory_ex(vid->memory_copy, dest, sx, sy, dx, dy, w, h, TRANS),
<a name="l01439"></a>01439 allegro_gl_video_blit_from_memory_ex(source, dest, 0, 0, x, y, sprite->w, sprite->h, TRANS)
<a name="l01440"></a>01440 )
<a name="l01441"></a>01441
<a name="l01442"></a>01442 if (__allegro_gl_blit_operation == AGL_OP_LOGIC_OP)
<a name="l01443"></a>01443 glDisable(GL_COLOR_LOGIC_OP);
<a name="l01444"></a>01444 else
<a name="l01445"></a>01445 glDisable(GL_BLEND);
<a name="l01446"></a>01446
<a name="l01447"></a>01447 return;
<a name="l01448"></a>01448 }
<a name="l01449"></a>01449
<a name="l01450"></a>01450
<a name="l01451"></a>01451
<a name="l01452"></a>01452 <span class="comment">/* allegro_gl_video_draw_sprite_ex:</span>
<a name="l01453"></a>01453 <span class="comment"> * draw_sprite_ex() overload for video -> video and memory -> video drawing</span>
<a name="l01454"></a>01454 <span class="comment"> *</span>
<a name="l01455"></a>01455 <span class="comment"> * When mode is DRAW_SPRITE_TRANS:</span>
<a name="l01456"></a>01456 <span class="comment"> * FIXME: Broken if the bitmap was split into multiple textures.</span>
<a name="l01457"></a>01457 <span class="comment"> * FIXME: Doesn't apply flipping to the memory copy</span>
<a name="l01458"></a>01458 <span class="comment"> */</span>
<a name="l01459"></a>01459 static <span class="keywordtype">void</span> allegro_gl_video_draw_sprite_ex(BITMAP *bmp, BITMAP *sprite,
<a name="l01460"></a>01460 <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y, <span class="keywordtype">int</span> mode, <span class="keywordtype">int</span> flip) {
<a name="l01461"></a>01461 <span class="keywordtype">int</span> matrix_mode;
<a name="l01462"></a>01462 <span class="keywordtype">int</span> lflip = 0;
<a name="l01463"></a>01463
<a name="l01464"></a>01464 <span class="comment">/* convert allegro's flipping flags to AGL's flags */</span>
<a name="l01465"></a>01465 <span class="keywordflow">switch</span> (flip) {
<a name="l01466"></a>01466 <span class="keywordflow">case</span> DRAW_SPRITE_NO_FLIP:
<a name="l01467"></a>01467 lflip = FALSE;
<a name="l01468"></a>01468 <span class="keywordflow">break</span>;
<a name="l01469"></a>01469 <span class="keywordflow">case</span> DRAW_SPRITE_V_FLIP:
<a name="l01470"></a>01470 lflip = AGL_V_FLIP;
<a name="l01471"></a>01471 <span class="keywordflow">break</span>;
<a name="l01472"></a>01472 <span class="keywordflow">case</span> DRAW_SPRITE_H_FLIP:
<a name="l01473"></a>01473 lflip = AGL_H_FLIP;
<a name="l01474"></a>01474 <span class="keywordflow">break</span>;
<a name="l01475"></a>01475 <span class="keywordflow">case</span> DRAW_SPRITE_VH_FLIP:
<a name="l01476"></a>01476 lflip = AGL_V_FLIP | AGL_H_FLIP;
<a name="l01477"></a>01477 <span class="keywordflow">break</span>;
<a name="l01478"></a>01478 }
<a name="l01479"></a>01479
<a name="l01480"></a>01480 <span class="keywordflow">switch</span> (mode) {
<a name="l01481"></a>01481 <span class="keywordflow">case</span> DRAW_SPRITE_NORMAL:
<a name="l01482"></a>01482 do_masked_blit_video(sprite, bmp, 0, 0, x, y,
<a name="l01483"></a>01483 sprite->w, sprite->h, lflip, FALSE);
<a name="l01484"></a>01484 <span class="keywordflow">break</span>;
<a name="l01485"></a>01485 <span class="keywordflow">case</span> DRAW_SPRITE_TRANS:
<a name="l01486"></a>01486 <span class="keywordflow">if</span> (lflip) {
<a name="l01487"></a>01487 glGetIntegerv(GL_MATRIX_MODE, &matrix_mode);
<a name="l01488"></a>01488 glMatrixMode(GL_MODELVIEW);
<a name="l01489"></a>01489 glPushMatrix();
<a name="l01490"></a>01490
<a name="l01491"></a>01491 glTranslatef(x, y, 0.f);
<a name="l01492"></a>01492 glScalef((lflip&AGL_H_FLIP) ? -1 : 1, (lflip&AGL_V_FLIP)? -1 : 1, 1);
<a name="l01493"></a>01493 glTranslatef(-x, -y, 0);
<a name="l01494"></a>01494 glTranslatef((lflip&AGL_H_FLIP) ? -sprite->w : 0,
<a name="l01495"></a>01495 (lflip&AGL_V_FLIP) ? -sprite->h : 0, 0);
<a name="l01496"></a>01496 }
<a name="l01497"></a>01497
<a name="l01498"></a>01498 allegro_gl_video_draw_trans_rgba_sprite(bmp, sprite, x, y);
<a name="l01499"></a>01499
<a name="l01500"></a>01500 <span class="keywordflow">if</span> (lflip) {
<a name="l01501"></a>01501 glPopMatrix();
<a name="l01502"></a>01502 glMatrixMode(matrix_mode);
<a name="l01503"></a>01503 }
<a name="l01504"></a>01504 <span class="keywordflow">break</span>;
<a name="l01505"></a>01505 <span class="keywordflow">case</span> DRAW_SPRITE_LIT:
<a name="l01506"></a>01506 <span class="comment">/* not implemented */</span>
<a name="l01507"></a>01507 <span class="keywordflow">break</span>;
<a name="l01508"></a>01508 }
<a name="l01509"></a>01509 }
<a name="l01510"></a>01510
<a name="l01511"></a>01511
<a name="l01512"></a>01512
<a name="l01513"></a>01513 <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_video_clear_to_color(BITMAP *bmp, <span class="keywordtype">int</span> color) {
<a name="l01514"></a>01514 AGL_VIDEO_BITMAP *vid = bmp->extra;
<a name="l01515"></a>01515
<a name="l01516"></a>01516 <span class="keywordflow">if</span> (vid->fbo) {
<a name="l01517"></a>01517 <span class="keyword">static</span> GLint v[4];
<a name="l01518"></a>01518 <span class="keyword">static</span> <span class="keywordtype">double</span> allegro_gl_projection_matrix[16];
<a name="l01519"></a>01519 <span class="keyword">static</span> <span class="keywordtype">double</span> allegro_gl_modelview_matrix[16];
<a name="l01520"></a>01520
<a name="l01521"></a>01521 glGetIntegerv(GL_VIEWPORT, &v[0]);
<a name="l01522"></a>01522 glMatrixMode(GL_MODELVIEW);
<a name="l01523"></a>01523 glGetDoublev(GL_MODELVIEW_MATRIX, allegro_gl_modelview_matrix);
<a name="l01524"></a>01524 glMatrixMode(GL_PROJECTION);
<a name="l01525"></a>01525 glGetDoublev(GL_PROJECTION_MATRIX, allegro_gl_projection_matrix);
<a name="l01526"></a>01526
<a name="l01527"></a>01527 <span class="keywordflow">while</span> (vid) {
<a name="l01528"></a>01528 glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, vid->fbo);
<a name="l01529"></a>01529
<a name="l01530"></a>01530 glViewport(0, 0, vid->memory_copy->w, vid->memory_copy->h);
<a name="l01531"></a>01531 glMatrixMode(GL_PROJECTION);
<a name="l01532"></a>01532 glLoadIdentity();
<a name="l01533"></a>01533 gluOrtho2D(0, vid->memory_copy->w, 0, vid->memory_copy->h);
<a name="l01534"></a>01534 glMatrixMode(GL_MODELVIEW);
<a name="l01535"></a>01535
<a name="l01536"></a>01536 allegro_gl_screen_clear_to_color(bmp, color);
<a name="l01537"></a>01537 clear_to_color(vid->memory_copy, color);
<a name="l01538"></a>01538 vid = vid->next;
<a name="l01539"></a>01539 }
<a name="l01540"></a>01540
<a name="l01541"></a>01541 glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
<a name="l01542"></a>01542
<a name="l01543"></a>01543 glViewport(v[0], v[1], v[2], v[3]);
<a name="l01544"></a>01544 glMatrixMode(GL_PROJECTION);
<a name="l01545"></a>01545 glLoadMatrixd(allegro_gl_projection_matrix);
<a name="l01546"></a>01546 glMatrixMode(GL_MODELVIEW);
<a name="l01547"></a>01547 glLoadMatrixd(allegro_gl_modelview_matrix);
<a name="l01548"></a>01548 }
<a name="l01549"></a>01549 <span class="keywordflow">else</span> {
<a name="l01550"></a>01550 allegro_gl_video_rectfill(bmp, 0, 0, bmp->w, bmp->h, color);
<a name="l01551"></a>01551 }
<a name="l01552"></a>01552 }
<a name="l01553"></a>01553
<a name="l01554"></a>01554
<a name="l01555"></a>01555
<a name="l01556"></a>01556 <span class="comment">/* FIXME: Doesn't work when FBO is not available.</span>
<a name="l01557"></a>01557 <span class="comment"> * FIXME: Doesn't care for segmented video bitmaps.</span>
<a name="l01558"></a>01558 <span class="comment"> */</span>
<a name="l01559"></a>01559 <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_video_draw_color_glyph(<span class="keyword">struct</span> BITMAP *bmp,
<a name="l01560"></a>01560 <span class="keyword">struct</span> BITMAP *sprite, <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y, <span class="keywordtype">int</span> color, <span class="keywordtype">int</span> bg)
<a name="l01561"></a>01561 {
<a name="l01562"></a>01562 AGL_VIDEO_BITMAP *vid = bmp->extra;
<a name="l01563"></a>01563
<a name="l01564"></a>01564 <span class="keyword">static</span> GLint v[4];
<a name="l01565"></a>01565 <span class="keyword">static</span> <span class="keywordtype">double</span> allegro_gl_projection_matrix[16];
<a name="l01566"></a>01566 <span class="keyword">static</span> <span class="keywordtype">double</span> allegro_gl_modelview_matrix[16];
<a name="l01567"></a>01567
<a name="l01568"></a>01568 <span class="keywordflow">if</span> (!vid->fbo)
<a name="l01569"></a>01569 <span class="keywordflow">return</span>;
<a name="l01570"></a>01570
<a name="l01571"></a>01571 glGetIntegerv(GL_VIEWPORT, &v[0]);
<a name="l01572"></a>01572 glMatrixMode(GL_MODELVIEW);
<a name="l01573"></a>01573 glGetDoublev(GL_MODELVIEW_MATRIX, allegro_gl_modelview_matrix);
<a name="l01574"></a>01574 glMatrixMode(GL_PROJECTION);
<a name="l01575"></a>01575 glGetDoublev(GL_PROJECTION_MATRIX, allegro_gl_projection_matrix);
<a name="l01576"></a>01576
<a name="l01577"></a>01577 glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, vid->fbo);
<a name="l01578"></a>01578
<a name="l01579"></a>01579 glViewport(0, 0, vid->memory_copy->w, vid->memory_copy->h);
<a name="l01580"></a>01580 glMatrixMode(GL_PROJECTION);
<a name="l01581"></a>01581 glLoadIdentity();
<a name="l01582"></a>01582 gluOrtho2D(0, vid->memory_copy->w, 0, vid->memory_copy->h);
<a name="l01583"></a>01583 glMatrixMode(GL_MODELVIEW);
<a name="l01584"></a>01584
<a name="l01585"></a>01585 allegro_gl_screen_draw_color_glyph_ex(bmp, sprite, x, y, color, bg, 0);
<a name="l01586"></a>01586
<a name="l01587"></a>01587 glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
<a name="l01588"></a>01588
<a name="l01589"></a>01589 glViewport(v[0], v[1], v[2], v[3]);
<a name="l01590"></a>01590 glMatrixMode(GL_PROJECTION);
<a name="l01591"></a>01591 glLoadMatrixd(allegro_gl_projection_matrix);
<a name="l01592"></a>01592 glMatrixMode(GL_MODELVIEW);
<a name="l01593"></a>01593 glLoadMatrixd(allegro_gl_modelview_matrix);
<a name="l01594"></a>01594
<a name="l01595"></a>01595 vid->memory_copy->vtable->draw_character(vid->memory_copy, sprite, x, y, color, bg);
<a name="l01596"></a>01596 }
<a name="l01597"></a>01597
<a name="l01598"></a>01598
<a name="l01599"></a>01599
<a name="l01600"></a>01600 <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_video_draw_256_sprite(BITMAP *bmp, BITMAP *sprite,
<a name="l01601"></a>01601 <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y) {
<a name="l01602"></a>01602 allegro_gl_video_draw_color_glyph(bmp, sprite, x, y, -1, _textmode);
<a name="l01603"></a>01603 }
<a name="l01604"></a>01604
<a name="l01605"></a>01605
<a name="l01606"></a>01606
<a name="l01607"></a>01607 <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_video_draw_character(BITMAP *bmp, BITMAP *sprite,
<a name="l01608"></a>01608 <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y, <span class="keywordtype">int</span> color, <span class="keywordtype">int</span> bg) {
<a name="l01609"></a>01609 allegro_gl_video_draw_color_glyph(bmp, sprite, x, y, color, bg);
<a name="l01610"></a>01610 }
<a name="l01611"></a>01611
<a name="l01612"></a>01612
<a name="l01613"></a>01613
<a name="l01614"></a>01614 <span class="comment">/* FIXME: Doesn't work when FBO is not available.</span>
<a name="l01615"></a>01615 <span class="comment"> * FIXME: Doesn't care for segmented video bitmaps.</span>
<a name="l01616"></a>01616 <span class="comment"> */</span>
<a name="l01617"></a>01617 <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_video_draw_glyph(<span class="keyword">struct</span> BITMAP *bmp,
<a name="l01618"></a>01618 AL_CONST <span class="keyword">struct</span> FONT_GLYPH *glyph, <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y,
<a name="l01619"></a>01619 <span class="keywordtype">int</span> color, <span class="keywordtype">int</span> bg) {
<a name="l01620"></a>01620 AGL_VIDEO_BITMAP *vid = bmp->extra;
<a name="l01621"></a>01621
<a name="l01622"></a>01622 <span class="keyword">static</span> GLint v[4];
<a name="l01623"></a>01623 <span class="keyword">static</span> <span class="keywordtype">double</span> allegro_gl_projection_matrix[16];
<a name="l01624"></a>01624 <span class="keyword">static</span> <span class="keywordtype">double</span> allegro_gl_modelview_matrix[16];
<a name="l01625"></a>01625
<a name="l01626"></a>01626 <span class="keywordflow">if</span> (!vid->fbo)
<a name="l01627"></a>01627 <span class="keywordflow">return</span>;
<a name="l01628"></a>01628
<a name="l01629"></a>01629 glGetIntegerv(GL_VIEWPORT, &v[0]);
<a name="l01630"></a>01630 glMatrixMode(GL_MODELVIEW);
<a name="l01631"></a>01631 glGetDoublev(GL_MODELVIEW_MATRIX, allegro_gl_modelview_matrix);
<a name="l01632"></a>01632 glMatrixMode(GL_PROJECTION);
<a name="l01633"></a>01633 glGetDoublev(GL_PROJECTION_MATRIX, allegro_gl_projection_matrix);
<a name="l01634"></a>01634
<a name="l01635"></a>01635 glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, vid->fbo);
<a name="l01636"></a>01636
<a name="l01637"></a>01637 glViewport(0, 0, vid->memory_copy->w, vid->memory_copy->h);
<a name="l01638"></a>01638 glMatrixMode(GL_PROJECTION);
<a name="l01639"></a>01639 glLoadIdentity();
<a name="l01640"></a>01640 gluOrtho2D(0, vid->memory_copy->w, 0, vid->memory_copy->h);
<a name="l01641"></a>01641 glMatrixMode(GL_MODELVIEW);
<a name="l01642"></a>01642
<a name="l01643"></a>01643 allegro_gl_screen_draw_glyph_ex(bmp, glyph, x, y, color, bg, 1);
<a name="l01644"></a>01644
<a name="l01645"></a>01645 glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
<a name="l01646"></a>01646
<a name="l01647"></a>01647 glViewport(v[0], v[1], v[2], v[3]);
<a name="l01648"></a>01648 glMatrixMode(GL_PROJECTION);
<a name="l01649"></a>01649 glLoadMatrixd(allegro_gl_projection_matrix);
<a name="l01650"></a>01650 glMatrixMode(GL_MODELVIEW);
<a name="l01651"></a>01651 glLoadMatrixd(allegro_gl_modelview_matrix);
<a name="l01652"></a>01652
<a name="l01653"></a>01653 vid->memory_copy->vtable->draw_glyph(vid->memory_copy, glyph, x, y, color, bg);
<a name="l01654"></a>01654 }
<a name="l01655"></a>01655
<a name="l01656"></a>01656
<a name="l01657"></a>01657
<a name="l01658"></a>01658 <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_video_polygon3d_f(BITMAP *bmp, <span class="keywordtype">int</span> type, BITMAP *texture,
<a name="l01659"></a>01659 <span class="keywordtype">int</span> vc, V3D_f *vtx[])
<a name="l01660"></a>01660 {
<a name="l01661"></a>01661 AGL_VIDEO_BITMAP *vid = bmp->extra;
<a name="l01662"></a>01662
<a name="l01663"></a>01663 <span class="comment">/* Switch to software mode is using polygon type that isn't supported by</span>
<a name="l01664"></a>01664 <span class="comment"> allegro_gl_screen_polygon3d_f. */</span>
<a name="l01665"></a>01665 <span class="keywordtype">int</span> use_fbo = (type == POLYTYPE_FLAT) ||
<a name="l01666"></a>01666 (type == POLYTYPE_GRGB) ||
<a name="l01667"></a>01667 (type == POLYTYPE_GCOL) ||
<a name="l01668"></a>01668 (type == POLYTYPE_ATEX) ||
<a name="l01669"></a>01669 (type == POLYTYPE_PTEX) ||
<a name="l01670"></a>01670 (type == POLYTYPE_ATEX_TRANS) ||
<a name="l01671"></a>01671 (type == POLYTYPE_PTEX_TRANS);
<a name="l01672"></a>01672
<a name="l01673"></a>01673 <span class="keywordflow">if</span> (vid->fbo && use_fbo) {
<a name="l01674"></a>01674 <span class="keyword">static</span> GLint v[4];
<a name="l01675"></a>01675 <span class="keyword">static</span> <span class="keywordtype">double</span> allegro_gl_projection_matrix[16];
<a name="l01676"></a>01676 <span class="keyword">static</span> <span class="keywordtype">double</span> allegro_gl_modelview_matrix[16];
<a name="l01677"></a>01677
<a name="l01678"></a>01678 glGetIntegerv(GL_VIEWPORT, &v[0]);
<a name="l01679"></a>01679 glMatrixMode(GL_MODELVIEW);
<a name="l01680"></a>01680 glGetDoublev(GL_MODELVIEW_MATRIX, allegro_gl_modelview_matrix);
<a name="l01681"></a>01681 glMatrixMode(GL_PROJECTION);
<a name="l01682"></a>01682 glGetDoublev(GL_PROJECTION_MATRIX, allegro_gl_projection_matrix);
<a name="l01683"></a>01683
<a name="l01684"></a>01684 <span class="keywordflow">while</span> (vid) {
<a name="l01685"></a>01685 BITMAP *mem_texture;
<a name="l01686"></a>01686
<a name="l01687"></a>01687 glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, vid->fbo);
<a name="l01688"></a>01688
<a name="l01689"></a>01689 glViewport(0, 0, vid->memory_copy->w, vid->memory_copy->h);
<a name="l01690"></a>01690 glMatrixMode(GL_PROJECTION);
<a name="l01691"></a>01691 glLoadIdentity();
<a name="l01692"></a>01692 gluOrtho2D(0, vid->memory_copy->w, 0, vid->memory_copy->h);
<a name="l01693"></a>01693 glMatrixMode(GL_MODELVIEW);
<a name="l01694"></a>01694
<a name="l01695"></a>01695 allegro_gl_screen_polygon3d_f(bmp, type, texture, vc, vtx);
<a name="l01696"></a>01696
<a name="l01697"></a>01697 <span class="keywordflow">if</span> (is_video_bitmap(texture)) {
<a name="l01698"></a>01698 AGL_VIDEO_BITMAP *vbmp = texture->extra;
<a name="l01699"></a>01699 mem_texture = vbmp->memory_copy;
<a name="l01700"></a>01700 }
<a name="l01701"></a>01701 <span class="keywordflow">else</span> {
<a name="l01702"></a>01702 mem_texture = texture;
<a name="l01703"></a>01703 }
<a name="l01704"></a>01704 polygon3d_f(vid->memory_copy, type, mem_texture, vc, vtx);
<a name="l01705"></a>01705
<a name="l01706"></a>01706 vid = vid->next;
<a name="l01707"></a>01707 }
<a name="l01708"></a>01708
<a name="l01709"></a>01709 glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
<a name="l01710"></a>01710
<a name="l01711"></a>01711 glViewport(v[0], v[1], v[2], v[3]);
<a name="l01712"></a>01712 glMatrixMode(GL_PROJECTION);
<a name="l01713"></a>01713 glLoadMatrixd(allegro_gl_projection_matrix);
<a name="l01714"></a>01714 glMatrixMode(GL_MODELVIEW);
<a name="l01715"></a>01715 glLoadMatrixd(allegro_gl_modelview_matrix);
<a name="l01716"></a>01716 }
<a name="l01717"></a>01717 <span class="keywordflow">else</span> {
<a name="l01718"></a>01718 <span class="keywordtype">int</span> i;
<a name="l01719"></a>01719 AGL_VIDEO_BITMAP *vid;
<a name="l01720"></a>01720
<a name="l01721"></a>01721 vid = bmp->extra;
<a name="l01722"></a>01722
<a name="l01723"></a>01723 <span class="keywordflow">if</span> (is_sub_bitmap(bmp)) {
<a name="l01724"></a>01724 <span class="keywordflow">for</span> (i = 0; i < vc; ++i) {
<a name="l01725"></a>01725 vtx[i]->x += bmp->x_ofs;
<a name="l01726"></a>01726 vtx[i]->y += bmp->y_ofs;
<a name="l01727"></a>01727 }
<a name="l01728"></a>01728 }
<a name="l01729"></a>01729
<a name="l01730"></a>01730 <span class="keywordflow">while</span> (vid) {
<a name="l01731"></a>01731 BITMAP *mem_texture;
<a name="l01732"></a>01732 <span class="keywordtype">int</span> _y1, _y2, _x1, _x2;
<a name="l01733"></a>01733 BITMAP *vbmp = vid->memory_copy;
<a name="l01734"></a>01734
<a name="l01735"></a>01735 _x1 = 9999;
<a name="l01736"></a>01736 <span class="keywordflow">for</span> (i = 0; i < vc; ++i)
<a name="l01737"></a>01737 <span class="keywordflow">if</span> (vtx[i]->x < _x1) _x1 = vtx[i]->x;
<a name="l01738"></a>01738
<a name="l01739"></a>01739 _x2 = -9999;
<a name="l01740"></a>01740 <span class="keywordflow">for</span> (i = 0; i < vc; ++i)
<a name="l01741"></a>01741 <span class="keywordflow">if</span> (vtx[i]->x > _x2) _x2 = vtx[i]->x;
<a name="l01742"></a>01742
<a name="l01743"></a>01743 _y1 = 9999;
<a name="l01744"></a>01744 <span class="keywordflow">for</span> (i = 0; i < vc; ++i)
<a name="l01745"></a>01745 <span class="keywordflow">if</span> (vtx[i]->y < _y1) _y1 = vtx[i]->y;
<a name="l01746"></a>01746
<a name="l01747"></a>01747 _y2 = -9999;
<a name="l01748"></a>01748 <span class="keywordflow">for</span> (i = 0; i < vc; ++i)
<a name="l01749"></a>01749 <span class="keywordflow">if</span> (vtx[i]->y > _y2) _y2 = vtx[i]->y;
<a name="l01750"></a>01750
<a name="l01751"></a>01751 <span class="keywordflow">if</span> (vid->x_ofs > _x2 || vid->y_ofs > _y2
<a name="l01752"></a>01752 || vid->x_ofs + vbmp->w <= _x1
<a name="l01753"></a>01753 || vid->y_ofs + vbmp->h <= _y1) {
<a name="l01754"></a>01754
<a name="l01755"></a>01755 vid = vid->next;
<a name="l01756"></a>01756 <span class="keywordflow">continue</span>;
<a name="l01757"></a>01757 }
<a name="l01758"></a>01758
<a name="l01759"></a>01759 _x1 = MAX(0, _x1 - vid->x_ofs);
<a name="l01760"></a>01760 _x2 = (_x2 - (vid->x_ofs + vbmp->w) > 0) ? vbmp->w - 1: _x2 - vid->x_ofs;
<a name="l01761"></a>01761 _y1 = MAX(0, _y1 - vid->y_ofs);
<a name="l01762"></a>01762 _y2 = (_x2 - (vid->y_ofs + vbmp->h) > 0) ? vbmp->h - 1: _y2 - vid->y_ofs;
<a name="l01763"></a>01763
<a name="l01764"></a>01764 <span class="keywordflow">if</span> (is_video_bitmap(texture)) {
<a name="l01765"></a>01765 AGL_VIDEO_BITMAP *tex = texture->extra;
<a name="l01766"></a>01766 mem_texture = tex->memory_copy;
<a name="l01767"></a>01767 }
<a name="l01768"></a>01768 <span class="keywordflow">else</span> {
<a name="l01769"></a>01769 mem_texture = texture;
<a name="l01770"></a>01770 }
<a name="l01771"></a>01771 polygon3d_f(vid->memory_copy, type, mem_texture, vc, vtx);
<a name="l01772"></a>01772
<a name="l01773"></a>01773 update_texture_memory(vid, _x1, _y1, _x2, _y2);
<a name="l01774"></a>01774
<a name="l01775"></a>01775 vid = vid->next;
<a name="l01776"></a>01776 }
<a name="l01777"></a>01777 }
<a name="l01778"></a>01778
<a name="l01779"></a>01779 <span class="keywordflow">return</span>;
<a name="l01780"></a>01780 }
<a name="l01781"></a>01781
<a name="l01782"></a>01782
<a name="l01783"></a>01783
<a name="l01784"></a>01784 <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_video_polygon3d(BITMAP *bmp, <span class="keywordtype">int</span> type, BITMAP *texture,
<a name="l01785"></a>01785 <span class="keywordtype">int</span> vc, V3D *vtx[])
<a name="l01786"></a>01786 {
<a name="l01787"></a>01787 <span class="keywordtype">int</span> i;
<a name="l01788"></a>01788 V3D_f **vtx_f = malloc(vc * <span class="keyword">sizeof</span>(<span class="keyword">struct</span> V3D_f*));
<a name="l01789"></a>01789 <span class="keywordflow">if</span> (!vtx_f)
<a name="l01790"></a>01790 <span class="keywordflow">return</span>;
<a name="l01791"></a>01791
<a name="l01792"></a>01792 <span class="keywordflow">for</span> (i = 0; i < vc; i++) {
<a name="l01793"></a>01793 vtx_f[i] = malloc(<span class="keyword">sizeof</span>(<span class="keyword">struct</span> V3D_f));
<a name="l01794"></a>01794 <span class="keywordflow">if</span> (!vtx_f[i]) {
<a name="l01795"></a>01795 <span class="keywordtype">int</span> k;
<a name="l01796"></a>01796 <span class="keywordflow">for</span> (k = 0; k < i; k++)
<a name="l01797"></a>01797 free(vtx_f[k]);
<a name="l01798"></a>01798 free(vtx_f);
<a name="l01799"></a>01799 <span class="keywordflow">return</span>;
<a name="l01800"></a>01800 }
<a name="l01801"></a>01801 vtx_f[i]->c = vtx[i]->c;
<a name="l01802"></a>01802 vtx_f[i]->u = fixtof(vtx[i]->u);
<a name="l01803"></a>01803 vtx_f[i]->v = fixtof(vtx[i]->v);
<a name="l01804"></a>01804 vtx_f[i]->x = fixtof(vtx[i]->x);
<a name="l01805"></a>01805 vtx_f[i]->y = fixtof(vtx[i]->y);
<a name="l01806"></a>01806 vtx_f[i]->z = fixtof(vtx[i]->z);
<a name="l01807"></a>01807 }
<a name="l01808"></a>01808
<a name="l01809"></a>01809 allegro_gl_video_polygon3d_f(bmp, type, texture, vc, vtx_f);
<a name="l01810"></a>01810
<a name="l01811"></a>01811 <span class="keywordflow">for</span> (i = 0; i < vc; i++)
<a name="l01812"></a>01812 free(vtx_f[i]);
<a name="l01813"></a>01813 free(vtx_f);
<a name="l01814"></a>01814 }
<a name="l01815"></a>01815
<a name="l01816"></a>01816
<a name="l01817"></a>01817
<a name="l01818"></a>01818 <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_video_triangle3d(BITMAP *bmp, <span class="keywordtype">int</span> type, BITMAP *texture,
<a name="l01819"></a>01819 V3D *v1, V3D *v2, V3D *v3)
<a name="l01820"></a>01820 {
<a name="l01821"></a>01821 V3D *vtx[3];
<a name="l01822"></a>01822 vtx[0] = v1;
<a name="l01823"></a>01823 vtx[1] = v2;
<a name="l01824"></a>01824 vtx[2] = v3;
<a name="l01825"></a>01825
<a name="l01826"></a>01826 allegro_gl_video_polygon3d(bmp, type, texture, 3, vtx);
<a name="l01827"></a>01827 }
<a name="l01828"></a>01828
<a name="l01829"></a>01829
<a name="l01830"></a>01830
<a name="l01831"></a>01831 <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_video_triangle3d_f(BITMAP *bmp, <span class="keywordtype">int</span> type, BITMAP *texture,
<a name="l01832"></a>01832 V3D_f *v1, V3D_f *v2, V3D_f *v3)
<a name="l01833"></a>01833 {
<a name="l01834"></a>01834 V3D_f *vtx_f[3];
<a name="l01835"></a>01835 vtx_f[0] = v1;
<a name="l01836"></a>01836 vtx_f[1] = v2;
<a name="l01837"></a>01837 vtx_f[2] = v3;
<a name="l01838"></a>01838
<a name="l01839"></a>01839 allegro_gl_video_polygon3d_f(bmp, type, texture, 3, vtx_f);
<a name="l01840"></a>01840 }
<a name="l01841"></a>01841
<a name="l01842"></a>01842
<a name="l01843"></a>01843
<a name="l01844"></a>01844 <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_video_quad3d(BITMAP *bmp, <span class="keywordtype">int</span> type, BITMAP *texture,
<a name="l01845"></a>01845 V3D *v1, V3D *v2, V3D *v3, V3D *v4)
<a name="l01846"></a>01846 {
<a name="l01847"></a>01847 V3D *vtx[4];
<a name="l01848"></a>01848 vtx[0] = v1;
<a name="l01849"></a>01849 vtx[1] = v2;
<a name="l01850"></a>01850 vtx[2] = v3;
<a name="l01851"></a>01851 vtx[3] = v4;
<a name="l01852"></a>01852
<a name="l01853"></a>01853 allegro_gl_video_polygon3d(bmp, type, texture, 4, vtx);
<a name="l01854"></a>01854 }
<a name="l01855"></a>01855
<a name="l01856"></a>01856
<a name="l01857"></a>01857
<a name="l01858"></a>01858 <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_video_quad3d_f(BITMAP *bmp, <span class="keywordtype">int</span> type, BITMAP *texture,
<a name="l01859"></a>01859 V3D_f *v1, V3D_f *v2, V3D_f *v3, V3D_f *v4)
<a name="l01860"></a>01860 {
<a name="l01861"></a>01861 V3D_f *vtx_f[4];
<a name="l01862"></a>01862 vtx_f[0] = v1;
<a name="l01863"></a>01863 vtx_f[1] = v2;
<a name="l01864"></a>01864 vtx_f[2] = v3;
<a name="l01865"></a>01865 vtx_f[3] = v4;
<a name="l01866"></a>01866
<a name="l01867"></a>01867 allegro_gl_video_polygon3d_f(bmp, type, texture, 4, vtx_f);
<a name="l01868"></a>01868 }
<a name="l01869"></a>01869
<a name="l01870"></a>01870
<a name="l01871"></a>01871
<a name="l01872"></a>01872 <span class="keyword">static</span> <span class="keywordtype">void</span> dummy_unwrite_bank(<span class="keywordtype">void</span>)
<a name="l01873"></a>01873 {
<a name="l01874"></a>01874 }
<a name="l01875"></a>01875
<a name="l01876"></a>01876
<a name="l01877"></a>01877
<a name="l01878"></a>01878 <span class="keyword">static</span> GFX_VTABLE allegro_gl_video_vtable = {
<a name="l01879"></a>01879 0,
<a name="l01880"></a>01880 0,
<a name="l01881"></a>01881 dummy_unwrite_bank, <span class="comment">//void *unwrite_bank; /* C function on some machines, asm on i386 */</span>
<a name="l01882"></a>01882 NULL, <span class="comment">//AL_METHOD(void, set_clip, (struct BITMAP *bmp));</span>
<a name="l01883"></a>01883 <a class="code" href="group__glvtable.html#ga7002daa2a3e02adf79bed09039469595" title="acquire_bitmap(bmp) overload.">allegro_gl_video_acquire</a>,
<a name="l01884"></a>01884 <a class="code" href="group__glvtable.html#ga6fe7f8e5d64ab6b6e85643adefe8b0d5" title="release_bitmap(bmp) overload.">allegro_gl_video_release</a>,
<a name="l01885"></a>01885 NULL, <span class="comment">//AL_METHOD(struct BITMAP *, create_sub_bitmap, (struct BITMAP *parent, int x, int y, int width, int height));</span>
<a name="l01886"></a>01886 allegro_gl_created_sub_bitmap,
<a name="l01887"></a>01887 allegro_gl_video_getpixel,
<a name="l01888"></a>01888 allegro_gl_video_putpixel,
<a name="l01889"></a>01889 allegro_gl_video_vline,
<a name="l01890"></a>01890 allegro_gl_video_hline,
<a name="l01891"></a>01891 allegro_gl_video_hline,
<a name="l01892"></a>01892 allegro_gl_video_line,
<a name="l01893"></a>01893 allegro_gl_video_line,
<a name="l01894"></a>01894 allegro_gl_video_rectfill,
<a name="l01895"></a>01895 allegro_gl_video_triangle,
<a name="l01896"></a>01896 allegro_gl_video_draw_sprite,
<a name="l01897"></a>01897 allegro_gl_video_draw_256_sprite,
<a name="l01898"></a>01898 allegro_gl_video_draw_sprite_v_flip,
<a name="l01899"></a>01899 allegro_gl_video_draw_sprite_h_flip,
<a name="l01900"></a>01900 allegro_gl_video_draw_sprite_vh_flip,
<a name="l01901"></a>01901 allegro_gl_video_draw_trans_rgba_sprite,
<a name="l01902"></a>01902 allegro_gl_video_draw_trans_rgba_sprite,
<a name="l01903"></a>01903 NULL, <span class="comment">//AL_METHOD(void, draw_lit_sprite, (struct BITMAP *bmp, struct BITMAP *sprite, int x, int y, int color));</span>
<a name="l01904"></a>01904 NULL, <span class="comment">//AL_METHOD(void, allegro_gl_video_draw_rle_sprite, (struct BITMAP *bmp, struct RLE_SPRITE *sprite, int x, int y));</span>
<a name="l01905"></a>01905 NULL, <span class="comment">//AL_METHOD(void, draw_trans_rle_sprite, (struct BITMAP *bmp, struct RLE_SPRITE *sprite, int x, int y));</span>
<a name="l01906"></a>01906 NULL, <span class="comment">//AL_METHOD(void, draw_trans_rgba_rle_sprite, (struct BITMAP *bmp, struct RLE_SPRITE *sprite, int x, int y));</span>
<a name="l01907"></a>01907 NULL, <span class="comment">//AL_METHOD(void, draw_lit_rle_sprite, (struct BITMAP *bmp, struct RLE_SPRITE *sprite, int x, int y, int color));</span>
<a name="l01908"></a>01908 allegro_gl_video_draw_character,
<a name="l01909"></a>01909 allegro_gl_video_draw_glyph,
<a name="l01910"></a>01910 allegro_gl_video_blit_from_memory,
<a name="l01911"></a>01911 allegro_gl_video_blit_to_memory,
<a name="l01912"></a>01912 NULL, <span class="comment">//AL_METHOD(void, blit_from_system, (struct BITMAP *source, struct BITMAP *dest, int source_x, int source_y, int dest_x, int dest_y, int width, int height));</span>
<a name="l01913"></a>01913 NULL, <span class="comment">//AL_METHOD(void, blit_to_system, (struct BITMAP *source, struct BITMAP *dest, int source_x, int source_y, int dest_x, int dest_y, int width, int height));</span>
<a name="l01914"></a>01914 allegro_gl_screen_blit_to_self, <span class="comment">/* Video bitmaps use same method as screen */</span>
<a name="l01915"></a>01915 allegro_gl_screen_blit_to_self, <span class="comment">/* ..._forward */</span>
<a name="l01916"></a>01916 allegro_gl_screen_blit_to_self, <span class="comment">/* ..._backward */</span>
<a name="l01917"></a>01917 allegro_gl_memory_blit_between_formats,
<a name="l01918"></a>01918 allegro_gl_video_masked_blit,
<a name="l01919"></a>01919 allegro_gl_video_clear_to_color,
<a name="l01920"></a>01920 allegro_gl_video_pivot_scaled_sprite_flip,
<a name="l01921"></a>01921 allegro_gl_video_do_stretch_blit,
<a name="l01922"></a>01922 NULL, <span class="comment">//AL_METHOD(void, draw_gouraud_sprite, (struct BITMAP *bmp, struct BITMAP *sprite, int x, int y, int c1, int c2, int c3, int c4));</span>
<a name="l01923"></a>01923 NULL, <span class="comment">//AL_METHOD(void, draw_sprite_end, (void));</span>
<a name="l01924"></a>01924 NULL, <span class="comment">//AL_METHOD(void, blit_end, (void));</span>
<a name="l01925"></a>01925 _soft_polygon, <span class="comment">//AL_METHOD(void, polygon, (struct BITMAP *bmp, int vertices, AL_CONST int *points, int color));</span>
<a name="l01926"></a>01926 _soft_rect, <span class="comment">//AL_METHOD(void, rect, (struct BITMAP *bmp, int x1, int y1, int x2, int y2, int color));</span>
<a name="l01927"></a>01927 _soft_circle, <span class="comment">//AL_METHOD(void, circle, (struct BITMAP *bmp, int x, int y, int radius, int color));</span>
<a name="l01928"></a>01928 _soft_circlefill, <span class="comment">//AL_METHOD(void, circlefill, (struct BITMAP *bmp, int x, int y, int radius, int color));</span>
<a name="l01929"></a>01929 _soft_ellipse, <span class="comment">//AL_METHOD(void, ellipse, (struct BITMAP *bmp, int x, int y, int rx, int ry, int color));</span>
<a name="l01930"></a>01930 _soft_ellipsefill, <span class="comment">//AL_METHOD(void, ellipsefill, (struct BITMAP *bmp, int x, int y, int rx, int ry, int color));</span>
<a name="l01931"></a>01931 _soft_arc, <span class="comment">//AL_METHOD(void, arc, (struct BITMAP *bmp, int x, int y, fixed ang1, fixed ang2, int r, int color));</span>
<a name="l01932"></a>01932 _soft_spline, <span class="comment">//AL_METHOD(void, spline, (struct BITMAP *bmp, AL_CONST int points[8], int color));</span>
<a name="l01933"></a>01933 _soft_floodfill, <span class="comment">//AL_METHOD(void, floodfill, (struct BITMAP *bmp, int x, int y, int color));</span>
<a name="l01934"></a>01934 allegro_gl_video_polygon3d,
<a name="l01935"></a>01935 allegro_gl_video_polygon3d_f,
<a name="l01936"></a>01936 allegro_gl_video_triangle3d,
<a name="l01937"></a>01937 allegro_gl_video_triangle3d_f,
<a name="l01938"></a>01938 allegro_gl_video_quad3d,
<a name="l01939"></a>01939 allegro_gl_video_quad3d_f,
<a name="l01940"></a>01940 allegro_gl_video_draw_sprite_ex
<a name="l01941"></a>01941 };
<a name="l01942"></a>01942
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