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<h1>x.c</h1><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="l00004"></a>00004 <span class="comment">/*----------------------------------------------------------------</span>
<a name="l00005"></a>00005 <span class="comment"> * x.c -- Allegro-GLX interfacing</span>
<a name="l00006"></a>00006 <span class="comment"> *----------------------------------------------------------------</span>
<a name="l00007"></a>00007 <span class="comment"> * This is the interface module for use under X.</span>
<a name="l00008"></a>00008 <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 <stdio.h></span>
<a name="l00011"></a>00011
<a name="l00012"></a>00012 <span class="preprocessor">#include <allegro.h></span>
<a name="l00013"></a>00013 <span class="preprocessor">#include <xalleg.h></span>
<a name="l00014"></a>00014
<a name="l00015"></a>00015 <span class="preprocessor">#include <allegro/platform/aintunix.h></span>
<a name="l00016"></a>00016
<a name="l00017"></a>00017 <span class="preprocessor">#include "<a class="code" href="alleggl_8h.html" title="Main header file for AllegroGL.">alleggl.h</a>"</span>
<a name="l00018"></a>00018 <span class="preprocessor">#include "allglint.h"</span>
<a name="l00019"></a>00019 <span class="preprocessor">#include "glvtable.h"</span>
<a name="l00020"></a>00020
<a name="l00021"></a>00021
<a name="l00022"></a>00022 <span class="preprocessor">#ifndef XLOCK</span>
<a name="l00023"></a>00023 <span class="preprocessor"></span><span class="preprocessor"> #define OLD_ALLEGRO</span>
<a name="l00024"></a>00024 <span class="preprocessor"></span><span class="preprocessor"> #define XLOCK() DISABLE()</span>
<a name="l00025"></a>00025 <span class="preprocessor"></span><span class="preprocessor"> #undef XUNLOCK</span>
<a name="l00026"></a>00026 <span class="preprocessor"></span><span class="preprocessor"> #define XUNLOCK() ENABLE()</span>
<a name="l00027"></a>00027 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00028"></a>00028 <span class="preprocessor"></span>
<a name="l00029"></a>00029 <span class="preprocessor">#define PREFIX_I "agl-x INFO: "</span>
<a name="l00030"></a>00030 <span class="preprocessor"></span><span class="preprocessor">#define PREFIX_E "agl-x ERROR: "</span>
<a name="l00031"></a>00031 <span class="preprocessor"></span>
<a name="l00032"></a>00032
<a name="l00033"></a>00033 <span class="preprocessor">#ifdef ALLEGRO_XWINDOWS_WITH_XPM</span>
<a name="l00034"></a>00034 <span class="preprocessor"></span><span class="preprocessor">#include <X11/xpm.h></span>
<a name="l00035"></a>00035 <span class="keyword">extern</span> <span class="keywordtype">void</span> *allegro_icon;
<a name="l00036"></a>00036 <span class="preprocessor">#endif</span>
<a name="l00037"></a>00037 <span class="preprocessor"></span>
<a name="l00038"></a>00038
<a name="l00039"></a>00039 <span class="keyword">static</span> BITMAP *allegro_gl_x_windowed_init(<span class="keywordtype">int</span> w, <span class="keywordtype">int</span> h, <span class="keywordtype">int</span> vw, <span class="keywordtype">int</span> vh,
<a name="l00040"></a>00040 <span class="keywordtype">int</span> color_depth);
<a name="l00041"></a>00041 <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_x_exit(BITMAP *bmp);
<a name="l00042"></a>00042 <span class="preprocessor">#ifdef ALLEGROGL_HAVE_XF86VIDMODE</span>
<a name="l00043"></a>00043 <span class="preprocessor"></span><span class="keyword">static</span> GFX_MODE_LIST* allegro_gl_x_fetch_mode_list(<span class="keywordtype">void</span>);
<a name="l00044"></a>00044 <span class="preprocessor">#endif</span>
<a name="l00045"></a>00045 <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_x_vsync(<span class="keywordtype">void</span>);
<a name="l00046"></a>00046 <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_x_hide_mouse(<span class="keywordtype">void</span>);
<a name="l00047"></a>00047
<a name="l00048"></a>00048 <span class="keyword">static</span> BITMAP *<a class="code" href="alleggl_8c.html#84d9cceae55bf273f9aab7512b353284" title="Direct-mode GL `screen' bitmap.">allegro_gl_screen</a> = NULL;
<a name="l00049"></a>00049
<a name="l00050"></a>00050 <span class="comment">/* TODO: Revamp the whole window handling under X11 in Allegro and</span>
<a name="l00051"></a>00051 <span class="comment"> * AllegroGL. We really shouldn't have to duplicate code or hack on</span>
<a name="l00052"></a>00052 <span class="comment"> * Allegro internals in AllegroGL - the *only* difference for the AllegroGL</span>
<a name="l00053"></a>00053 <span class="comment"> * window should be the GLX visual (e.g. cursor, icon, VidModeExtension and</span>
<a name="l00054"></a>00054 <span class="comment"> * so on should never have been touched in this file).</span>
<a name="l00055"></a>00055 <span class="comment"> */</span>
<a name="l00056"></a>00056 <span class="preprocessor">#if GET_ALLEGRO_VERSION() >= MAKE_VER(4, 2, 1)</span>
<a name="l00057"></a>00057 <span class="preprocessor"></span><span class="keyword">static</span> Window backup_allegro_window = None;
<a name="l00058"></a>00058 <span class="keyword">static</span> Colormap backup_allegro_colormap = None;
<a name="l00059"></a>00059 <span class="preprocessor">#endif</span>
<a name="l00060"></a>00060 <span class="preprocessor"></span>
<a name="l00061"></a>00061
<a name="l00062"></a>00062 <span class="preprocessor">#ifdef ALLEGROGL_HAVE_XF86VIDMODE</span>
<a name="l00063"></a>00063 <span class="preprocessor"></span><span class="keyword">static</span> BITMAP *allegro_gl_x_fullscreen_init(<span class="keywordtype">int</span> w, <span class="keywordtype">int</span> h, <span class="keywordtype">int</span> vw, <span class="keywordtype">int</span> vh,
<a name="l00064"></a>00064 <span class="keywordtype">int</span> color_depth);
<a name="l00065"></a>00065
<a name="l00066"></a>00066 GFX_DRIVER <a class="code" href="alleggl_8h.html#d939783cd83d7eee3227b608f4901441">gfx_allegro_gl_fullscreen</a> =
<a name="l00067"></a>00067 {
<a name="l00068"></a>00068 <a class="code" href="alleggl_8h.html#fd00c615b3351d54382b5f883b99544f" title="Fullscreen OpenGL graphics driver for Allegro.">GFX_OPENGL_FULLSCREEN</a>,
<a name="l00069"></a>00069 empty_string,
<a name="l00070"></a>00070 empty_string,
<a name="l00071"></a>00071 <span class="stringliteral">"AllegroGL Fullscreen (X)"</span>,
<a name="l00072"></a>00072 allegro_gl_x_fullscreen_init,
<a name="l00073"></a>00073 allegro_gl_x_exit,
<a name="l00074"></a>00074 NULL,
<a name="l00075"></a>00075 allegro_gl_x_vsync,
<a name="l00076"></a>00076 NULL,
<a name="l00077"></a>00077 NULL, NULL, NULL,
<a name="l00078"></a>00078 <a class="code" href="videovtb_8c.html#4dadb9b189453bc9693c032ce63fc5b4" title="create_video_bitmap() overload.">allegro_gl_create_video_bitmap</a>,
<a name="l00079"></a>00079 <a class="code" href="videovtb_8c.html#69a97f6c3805246762fbefb545f20f87" title="destroy_video_bitmap() overload.">allegro_gl_destroy_video_bitmap</a>,
<a name="l00080"></a>00080 NULL, NULL, <span class="comment">/* No show/request video bitmaps */</span>
<a name="l00081"></a>00081 NULL, NULL,
<a name="l00082"></a>00082 <a class="code" href="gui_8c.html#757f94efcdb237ef53393d86cea22f60">allegro_gl_set_mouse_sprite</a>,
<a name="l00083"></a>00083 <a class="code" href="gui_8c.html#d2a2c6759997ceeb06b5394773da0606">allegro_gl_show_mouse</a>,
<a name="l00084"></a>00084 allegro_gl_x_hide_mouse,
<a name="l00085"></a>00085 <a class="code" href="gui_8c.html#769cf11d2059483f19fd51adde6df15d">allegro_gl_move_mouse</a>,
<a name="l00086"></a>00086 <a class="code" href="group__glvtable.html#g04407f993ca3c21d922919db724b96c2">allegro_gl_drawing_mode</a>,
<a name="l00087"></a>00087 NULL, NULL,
<a name="l00088"></a>00088 <a class="code" href="alleggl_8c.html#4e7f6038ebd76a511b6c2a787090699a">allegro_gl_set_blender_mode</a>,
<a name="l00089"></a>00089 allegro_gl_x_fetch_mode_list,
<a name="l00090"></a>00090 0, 0,
<a name="l00091"></a>00091 0,
<a name="l00092"></a>00092 0, 0,
<a name="l00093"></a>00093 0,
<a name="l00094"></a>00094 0,
<a name="l00095"></a>00095 FALSE <span class="comment">/* Windowed mode */</span>
<a name="l00096"></a>00096 };
<a name="l00097"></a>00097 <span class="preprocessor">#endif </span><span class="comment">/* HAVE_XF86VIDMODE */</span>
<a name="l00098"></a>00098
<a name="l00099"></a>00099
<a name="l00100"></a>00100
<a name="l00101"></a>00101 GFX_DRIVER <a class="code" href="alleggl_8h.html#bfb526c49d9fb066ee80c45889caa9aa">gfx_allegro_gl_windowed</a> =
<a name="l00102"></a>00102 {
<a name="l00103"></a>00103 <a class="code" href="alleggl_8h.html#5fcf0497998fecc3c04bb5b6ce66782b" title="Windowed OpenGL graphics driver for Allegro.">GFX_OPENGL_WINDOWED</a>,
<a name="l00104"></a>00104 empty_string,
<a name="l00105"></a>00105 empty_string,
<a name="l00106"></a>00106 <span class="stringliteral">"AllegroGL Windowed (X)"</span>,
<a name="l00107"></a>00107 allegro_gl_x_windowed_init,
<a name="l00108"></a>00108 allegro_gl_x_exit,
<a name="l00109"></a>00109 NULL,
<a name="l00110"></a>00110 allegro_gl_x_vsync,
<a name="l00111"></a>00111 NULL,
<a name="l00112"></a>00112 NULL, NULL, NULL,
<a name="l00113"></a>00113 <a class="code" href="videovtb_8c.html#4dadb9b189453bc9693c032ce63fc5b4" title="create_video_bitmap() overload.">allegro_gl_create_video_bitmap</a>,
<a name="l00114"></a>00114 <a class="code" href="videovtb_8c.html#69a97f6c3805246762fbefb545f20f87" title="destroy_video_bitmap() overload.">allegro_gl_destroy_video_bitmap</a>,
<a name="l00115"></a>00115 NULL, NULL, <span class="comment">/* No show/request video bitmaps */</span>
<a name="l00116"></a>00116 NULL, NULL,
<a name="l00117"></a>00117 <a class="code" href="gui_8c.html#757f94efcdb237ef53393d86cea22f60">allegro_gl_set_mouse_sprite</a>,
<a name="l00118"></a>00118 <a class="code" href="gui_8c.html#d2a2c6759997ceeb06b5394773da0606">allegro_gl_show_mouse</a>,
<a name="l00119"></a>00119 allegro_gl_x_hide_mouse,
<a name="l00120"></a>00120 <a class="code" href="gui_8c.html#769cf11d2059483f19fd51adde6df15d">allegro_gl_move_mouse</a>,
<a name="l00121"></a>00121 <a class="code" href="group__glvtable.html#g04407f993ca3c21d922919db724b96c2">allegro_gl_drawing_mode</a>,
<a name="l00122"></a>00122 NULL, NULL,
<a name="l00123"></a>00123 <a class="code" href="alleggl_8c.html#4e7f6038ebd76a511b6c2a787090699a">allegro_gl_set_blender_mode</a>,
<a name="l00124"></a>00124 NULL, <span class="comment">/* No fetch_mode_list */</span>
<a name="l00125"></a>00125 0, 0,
<a name="l00126"></a>00126 0,
<a name="l00127"></a>00127 0, 0,
<a name="l00128"></a>00128 0,
<a name="l00129"></a>00129 0,
<a name="l00130"></a>00130 TRUE <span class="comment">/* Windowed mode */</span>
<a name="l00131"></a>00131 };
<a name="l00132"></a>00132
<a name="l00133"></a>00133
<a name="l00134"></a>00134
<a name="l00135"></a>00135 <span class="keyword">static</span> <span class="keyword">struct </span><a class="code" href="structallegro__gl__driver.html">allegro_gl_driver</a> allegro_gl_x;
<a name="l00136"></a>00136
<a name="l00137"></a>00137 <span class="keyword">static</span> XVisualInfo *allegro_gl_x_windowed_choose_visual (<span class="keywordtype">void</span>);
<a name="l00138"></a>00138 <span class="keyword">static</span> <span class="keywordtype">int</span> allegro_gl_x_create_window (<span class="keywordtype">int</span> fullscreen);
<a name="l00139"></a>00139 <span class="keyword">static</span> BITMAP *allegro_gl_x_windowed_create_screen (GFX_DRIVER *drv, <span class="keywordtype">int</span> w, <span class="keywordtype">int</span> h, <span class="keywordtype">int</span> depth);
<a name="l00140"></a>00140
<a name="l00141"></a>00141 <span class="keyword">static</span> <span class="keywordtype">int</span> decode_visual (XVisualInfo *v, <span class="keyword">struct</span> <a class="code" href="structallegro__gl__display__info.html">allegro_gl_display_info</a> *i);
<a name="l00142"></a>00142 <span class="keyword">struct </span>{
<a name="l00143"></a>00143 <span class="keywordtype">int</span> fullscreen;
<a name="l00144"></a>00144 GLXContext ctx;
<a name="l00145"></a>00145 <span class="keywordtype">int</span> major, minor; <span class="comment">/* Major and minor GLX version */</span>
<a name="l00146"></a>00146 <span class="keywordtype">int</span> error_base, event_base;
<a name="l00147"></a>00147 <span class="keywordtype">int</span> use_glx_window;
<a name="l00148"></a>00148 GLXWindow window;
<a name="l00149"></a>00149 } _glxwin;
<a name="l00150"></a>00150
<a name="l00151"></a>00151 <span class="keyword">static</span> void (*old_window_redrawer)(int, int, int, int);
<a name="l00152"></a>00152 <span class="keyword">extern</span> void (*_xwin_window_redrawer)(int, int, int, int);
<a name="l00153"></a>00153 <span class="keyword">static</span> int (*old_x_error_handler)(Display*, XErrorEvent*);
<a name="l00154"></a>00154
<a name="l00155"></a>00155
<a name="l00156"></a>00156
<a name="l00157"></a>00157 <span class="comment">/* allegro_gl_redraw_window :</span>
<a name="l00158"></a>00158 <span class="comment"> * Redraws the window when an Expose event is processed</span>
<a name="l00159"></a>00159 <span class="comment"> * Important note : no GL commands should be processed in this function</span>
<a name="l00160"></a>00160 <span class="comment"> * since it may be called by a thread which is different from the main thread.</span>
<a name="l00161"></a>00161 <span class="comment"> * In order to be able to process GL commands, we should create another context</span>
<a name="l00162"></a>00162 <span class="comment"> * and make it current to the other thread. IMHO it would be overkill.</span>
<a name="l00163"></a>00163 <span class="comment"> */</span>
<a name="l00164"></a>00164 <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_redraw_window(<span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y, <span class="keywordtype">int</span> w, <span class="keywordtype">int</span> h)
<a name="l00165"></a>00165 {
<a name="l00166"></a>00166 <span class="comment">/* Does nothing */</span>
<a name="l00167"></a>00167 <span class="keywordflow">return</span>;
<a name="l00168"></a>00168 }
<a name="l00169"></a>00169
<a name="l00170"></a>00170
<a name="l00171"></a>00171
<a name="l00172"></a>00172 <span class="preprocessor">#ifdef ALLEGRO_XWINDOWS_WITH_XCURSOR</span>
<a name="l00173"></a>00173 <span class="preprocessor"></span><span class="comment">/* _xwin_hide_x_mouse:</span>
<a name="l00174"></a>00174 <span class="comment"> * Create invisible X cursor</span>
<a name="l00175"></a>00175 <span class="comment"> */</span>
<a name="l00176"></a>00176 <span class="keyword">static</span> <span class="keywordtype">void</span> _xwin_hide_x_mouse(<span class="keywordtype">void</span>)
<a name="l00177"></a>00177 {
<a name="l00178"></a>00178 <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> gcmask;
<a name="l00179"></a>00179 XGCValues gcvalues;
<a name="l00180"></a>00180 Pixmap pixmap;
<a name="l00181"></a>00181
<a name="l00182"></a>00182 XUndefineCursor(_xwin.display, _xwin.window);
<a name="l00183"></a>00183
<a name="l00184"></a>00184 <span class="keywordflow">if</span> (_xwin.cursor != None) {
<a name="l00185"></a>00185 XFreeCursor(_xwin.display, _xwin.cursor);
<a name="l00186"></a>00186 _xwin.cursor = None;
<a name="l00187"></a>00187 }
<a name="l00188"></a>00188
<a name="l00189"></a>00189 <span class="keywordflow">if</span> (_xwin.xcursor_image != None) {
<a name="l00190"></a>00190 XcursorImageDestroy(_xwin.xcursor_image);
<a name="l00191"></a>00191 _xwin.xcursor_image = None;
<a name="l00192"></a>00192 }
<a name="l00193"></a>00193
<a name="l00194"></a>00194 pixmap = XCreatePixmap(_xwin.display, _xwin.window, 1, 1, 1);
<a name="l00195"></a>00195 <span class="keywordflow">if</span> (pixmap != None) {
<a name="l00196"></a>00196 GC temp_gc;
<a name="l00197"></a>00197 XColor color;
<a name="l00198"></a>00198
<a name="l00199"></a>00199 gcmask = GCFunction | GCForeground | GCBackground;
<a name="l00200"></a>00200 gcvalues.function = GXcopy;
<a name="l00201"></a>00201 gcvalues.foreground = 0;
<a name="l00202"></a>00202 gcvalues.background = 0;
<a name="l00203"></a>00203 temp_gc = XCreateGC(_xwin.display, pixmap, gcmask, &gcvalues);
<a name="l00204"></a>00204 XDrawPoint(_xwin.display, pixmap, temp_gc, 0, 0);
<a name="l00205"></a>00205 XFreeGC(_xwin.display, temp_gc);
<a name="l00206"></a>00206 color.pixel = 0;
<a name="l00207"></a>00207 color.red = color.green = color.blue = 0;
<a name="l00208"></a>00208 color.flags = DoRed | DoGreen | DoBlue;
<a name="l00209"></a>00209 _xwin.cursor = XCreatePixmapCursor(_xwin.display, pixmap, pixmap, &color, &color, 0, 0);
<a name="l00210"></a>00210 XDefineCursor(_xwin.display, _xwin.window, _xwin.cursor);
<a name="l00211"></a>00211 XFreePixmap(_xwin.display, pixmap);
<a name="l00212"></a>00212 }
<a name="l00213"></a>00213 <span class="keywordflow">else</span> {
<a name="l00214"></a>00214 _xwin.cursor = XCreateFontCursor(_xwin.display, _xwin.cursor_shape);
<a name="l00215"></a>00215 XDefineCursor(_xwin.display, _xwin.window, _xwin.cursor);
<a name="l00216"></a>00216 }
<a name="l00217"></a>00217 }
<a name="l00218"></a>00218 <span class="preprocessor">#endif</span>
<a name="l00219"></a>00219 <span class="preprocessor"></span>
<a name="l00220"></a>00220
<a name="l00221"></a>00221
<a name="l00222"></a>00222 <span class="comment">/* hide_mouse:</span>
<a name="l00223"></a>00223 <span class="comment"> * Hide the custom X cursor (if supported)</span>
<a name="l00224"></a>00224 <span class="comment"> */</span>
<a name="l00225"></a>00225 <span class="keyword">static</span> <span class="keywordtype">void</span> hide_mouse(<span class="keywordtype">void</span>)
<a name="l00226"></a>00226 {
<a name="l00227"></a>00227 <span class="preprocessor"> #ifdef ALLEGRO_XWINDOWS_WITH_XCURSOR</span>
<a name="l00228"></a>00228 <span class="preprocessor"></span> <span class="keywordflow">if</span> (_xwin.support_argb_cursor) {
<a name="l00229"></a>00229 XLOCK();
<a name="l00230"></a>00230 _xwin_hide_x_mouse();
<a name="l00231"></a>00231 XUNLOCK();
<a name="l00232"></a>00232 }
<a name="l00233"></a>00233 <span class="preprocessor"> #endif</span>
<a name="l00234"></a>00234 <span class="preprocessor"></span> <span class="keywordflow">return</span>;
<a name="l00235"></a>00235 }
<a name="l00236"></a>00236
<a name="l00237"></a>00237
<a name="l00238"></a>00238
<a name="l00239"></a>00239 <span class="comment">/* If Allegro's X11 mouse driver enabled hw cursors, we shouldn't use</span>
<a name="l00240"></a>00240 <span class="comment"> * allegro_gl_hide_mouse();</span>
<a name="l00241"></a>00241 <span class="comment"> */</span>
<a name="l00242"></a>00242 <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_x_hide_mouse(<span class="keywordtype">void</span>)
<a name="l00243"></a>00243 {
<a name="l00244"></a>00244 <span class="keywordflow">if</span> (_xwin.hw_cursor_ok) {
<a name="l00245"></a>00245 hide_mouse();
<a name="l00246"></a>00246 }
<a name="l00247"></a>00247 <span class="keywordflow">else</span> {
<a name="l00248"></a>00248 <a class="code" href="gui_8c.html#3d04d63eaa998f7b08b4420a3db1aa40">allegro_gl_hide_mouse</a>();
<a name="l00249"></a>00249 }
<a name="l00250"></a>00250 }
<a name="l00251"></a>00251
<a name="l00252"></a>00252
<a name="l00253"></a>00253
<a name="l00254"></a>00254 <span class="comment">/* allegro_gl_x_windowed_init:</span>
<a name="l00255"></a>00255 <span class="comment"> * Creates screen bitmap.</span>
<a name="l00256"></a>00256 <span class="comment"> */</span>
<a name="l00257"></a>00257 <span class="keyword">static</span> BITMAP *allegro_gl_x_create_screen(<span class="keywordtype">int</span> w, <span class="keywordtype">int</span> h, <span class="keywordtype">int</span> vw, <span class="keywordtype">int</span> vh,
<a name="l00258"></a>00258 <span class="keywordtype">int</span> depth, <span class="keywordtype">int</span> fullscreen)
<a name="l00259"></a>00259 {
<a name="l00260"></a>00260 <span class="keywordtype">int</span> _keyboard_was_installed = FALSE;
<a name="l00261"></a>00261 <span class="keywordtype">int</span> _mouse_was_installed = FALSE;
<a name="l00262"></a>00262
<a name="l00263"></a>00263 <span class="comment">/* test if Allegro have pthread support enabled */</span>
<a name="l00264"></a>00264 <span class="keywordflow">if</span> (!_unix_bg_man->multi_threaded) {
<a name="l00265"></a>00265 ustrzcpy (<a class="code" href="alleggl_8h.html#56226bbab6a0dfb87493cd5f94b80876">allegro_gl_error</a>, <a class="code" href="alleggl_8h.html#47dd926d0fa17257fd4870c8da949472">AGL_ERROR_SIZE</a>,
<a name="l00266"></a>00266 get_config_text(<span class="stringliteral">"Fatal Error : pthread support is not enabled"</span>));
<a name="l00267"></a>00267 <span class="keywordflow">return</span> NULL;
<a name="l00268"></a>00268 }
<a name="l00269"></a>00269
<a name="l00270"></a>00270 <span class="keywordflow">if</span> (keyboard_driver) {
<a name="l00271"></a>00271 _keyboard_was_installed = TRUE;
<a name="l00272"></a>00272 remove_keyboard();
<a name="l00273"></a>00273 TRACE(<a class="code" href="alleggl_8c.html#09462782acac95f9a6da67adf659ed6e">PREFIX_I</a> <span class="stringliteral">"x_create_screen: Removing Keyboard...\n"</span>);
<a name="l00274"></a>00274 }
<a name="l00275"></a>00275
<a name="l00276"></a>00276 <span class="keywordflow">if</span> (mouse_driver) {
<a name="l00277"></a>00277 _mouse_was_installed = TRUE;
<a name="l00278"></a>00278 remove_mouse();
<a name="l00279"></a>00279 TRACE(<a class="code" href="alleggl_8c.html#09462782acac95f9a6da67adf659ed6e">PREFIX_I</a> <span class="stringliteral">"x_create_screen: Removing Mouse...\n"</span>);
<a name="l00280"></a>00280 }
<a name="l00281"></a>00281
<a name="l00282"></a>00282 XLOCK();
<a name="l00283"></a>00283
<a name="l00284"></a>00284 <span class="keywordflow">if</span> (!glXQueryExtension(_xwin.display, &_glxwin.error_base,
<a name="l00285"></a>00285 &_glxwin.event_base)) {
<a name="l00286"></a>00286
<a name="l00287"></a>00287 ustrzcpy (allegro_error, ALLEGRO_ERROR_SIZE,
<a name="l00288"></a>00288 get_config_text(<span class="stringliteral">"GLX Extension not supported by display"</span>));
<a name="l00289"></a>00289 XUNLOCK();
<a name="l00290"></a>00290 <span class="keywordflow">goto</span> failure;
<a name="l00291"></a>00291 }
<a name="l00292"></a>00292
<a name="l00293"></a>00293 sscanf(glXQueryServerString(_xwin.display, _xwin.screen, GLX_VERSION),
<a name="l00294"></a>00294 <span class="stringliteral">"%i.%i"</span>, &_glxwin.major, &_glxwin.minor);
<a name="l00295"></a>00295
<a name="l00296"></a>00296 <span class="keywordflow">if</span> ((w == 0) && (h == 0)) {
<a name="l00297"></a>00297 w = 640;
<a name="l00298"></a>00298 h = 480;
<a name="l00299"></a>00299 }
<a name="l00300"></a>00300
<a name="l00301"></a>00301 <span class="keywordflow">if</span> ((vw > w) || (vh > h)) {
<a name="l00302"></a>00302 ustrzcpy (allegro_error, ALLEGRO_ERROR_SIZE,
<a name="l00303"></a>00303 get_config_text (<span class="stringliteral">"OpenGL drivers do not support virtual screens"</span>));
<a name="l00304"></a>00304 XUNLOCK();
<a name="l00305"></a>00305 <span class="keywordflow">goto</span> failure;
<a name="l00306"></a>00306 }
<a name="l00307"></a>00307
<a name="l00308"></a>00308 <a class="code" href="structallegro__gl__display__info.html">allegro_gl_display_info</a>.w = w;
<a name="l00309"></a>00309 <a class="code" href="structallegro__gl__display__info.html">allegro_gl_display_info</a>.h = h;
<a name="l00310"></a>00310
<a name="l00311"></a>00311 old_window_redrawer = _xwin_window_redrawer;
<a name="l00312"></a>00312 _xwin_window_redrawer = allegro_gl_redraw_window;
<a name="l00313"></a>00313 _glxwin.fullscreen = FALSE;
<a name="l00314"></a>00314 _glxwin.use_glx_window = FALSE;
<a name="l00315"></a>00315
<a name="l00316"></a>00316 <span class="keywordflow">if</span> (allegro_gl_x_create_window(fullscreen)) {
<a name="l00317"></a>00317 <span class="keywordflow">if</span> (fullscreen) {
<a name="l00318"></a>00318 ustrzcpy (allegro_error, ALLEGRO_ERROR_SIZE,
<a name="l00319"></a>00319 get_config_text (<span class="stringliteral">"Unable to switch in GLX fullscreen"</span>));
<a name="l00320"></a>00320 }
<a name="l00321"></a>00321 <span class="keywordflow">else</span> {
<a name="l00322"></a>00322 ustrzcpy (allegro_error, ALLEGRO_ERROR_SIZE,
<a name="l00323"></a>00323 get_config_text (<span class="stringliteral">"Unable to create GLX window"</span>));
<a name="l00324"></a>00324 }
<a name="l00325"></a>00325 XUNLOCK();
<a name="l00326"></a>00326 allegro_gl_x_exit(NULL);
<a name="l00327"></a>00327 <span class="keywordflow">goto</span> failure;
<a name="l00328"></a>00328 }
<a name="l00329"></a>00329
<a name="l00330"></a>00330 <span class="comment">/* If pixel format is Allegro compatible, set up Allegro correctly. */</span>
<a name="l00331"></a>00331 set_color_depth(<a class="code" href="structallegro__gl__display__info.html">allegro_gl_display_info</a>.colour_depth);
<a name="l00332"></a>00332
<a name="l00333"></a>00333 <span class="comment">/* XXX <rohannessian> X can run on Big-Endian systems. We need to </span>
<a name="l00334"></a>00334 <span class="comment"> * make a check for that and pass TRUE to</span>
<a name="l00335"></a>00335 <span class="comment"> * __allegro_gl_set_allegro_image_format() in that case.</span>
<a name="l00336"></a>00336 <span class="comment"> */</span>
<a name="l00337"></a>00337 <a class="code" href="alleggl_8c.html#1648560e7a8d944f2cc700f420374da2">__allegro_gl_set_allegro_image_format</a>(FALSE);
<a name="l00338"></a>00338
<a name="l00339"></a>00339 <span class="keywordflow">if</span> (fullscreen) {
<a name="l00340"></a>00340 <span class="preprocessor">#ifdef ALLEGROGL_HAVE_XF86VIDMODE</span>
<a name="l00341"></a>00341 <span class="preprocessor"></span> <a class="code" href="alleggl_8c.html#84d9cceae55bf273f9aab7512b353284" title="Direct-mode GL `screen' bitmap.">allegro_gl_screen</a> =
<a name="l00342"></a>00342 allegro_gl_x_windowed_create_screen (&gfx_allegro_gl_fullscreen,
<a name="l00343"></a>00343 <a class="code" href="structallegro__gl__display__info.html">allegro_gl_display_info</a>.w, <a class="code" href="structallegro__gl__display__info.html">allegro_gl_display_info</a>.h,
<a name="l00344"></a>00344 _color_depth);
<a name="l00345"></a>00345 <span class="preprocessor">#endif</span>
<a name="l00346"></a>00346 <span class="preprocessor"></span> }
<a name="l00347"></a>00347 <span class="keywordflow">else</span> {
<a name="l00348"></a>00348 <a class="code" href="alleggl_8c.html#84d9cceae55bf273f9aab7512b353284" title="Direct-mode GL `screen' bitmap.">allegro_gl_screen</a> =
<a name="l00349"></a>00349 allegro_gl_x_windowed_create_screen (&gfx_allegro_gl_windowed,
<a name="l00350"></a>00350 <a class="code" href="structallegro__gl__display__info.html">allegro_gl_display_info</a>.w, <a class="code" href="structallegro__gl__display__info.html">allegro_gl_display_info</a>.h,
<a name="l00351"></a>00351 _color_depth);
<a name="l00352"></a>00352 }
<a name="l00353"></a>00353
<a name="l00354"></a>00354 <span class="keywordflow">if</span> (!<a class="code" href="alleggl_8c.html#84d9cceae55bf273f9aab7512b353284" title="Direct-mode GL `screen' bitmap.">allegro_gl_screen</a>) {
<a name="l00355"></a>00355 ustrzcpy (allegro_error, ALLEGRO_ERROR_SIZE,
<a name="l00356"></a>00356 get_config_text (<span class="stringliteral">"Error creating screen bitmap"</span>));
<a name="l00357"></a>00357 XUNLOCK();
<a name="l00358"></a>00358 allegro_gl_x_exit(NULL);
<a name="l00359"></a>00359 <span class="keywordflow">goto</span> failure;
<a name="l00360"></a>00360 }
<a name="l00361"></a>00361
<a name="l00362"></a>00362 <a class="code" href="alleggl_8c.html#1cf577416af8a45cce479746114d7acb">__allegro_gl_valid_context</a> = TRUE;
<a name="l00363"></a>00363 <a class="code" href="alleggl_8c.html#5367a90beaa783cd9c718b9f04581569">__allegro_gl_driver</a> = &allegro_gl_x;
<a name="l00364"></a>00364
<a name="l00365"></a>00365 <span class="comment">/* Print out OpenGL version info */</span>
<a name="l00366"></a>00366 TRACE(<a class="code" href="alleggl_8c.html#09462782acac95f9a6da67adf659ed6e">PREFIX_I</a> <span class="stringliteral">"OpenGL Version: %s\n"</span>, (AL_CONST <span class="keywordtype">char</span>*)glGetString(GL_VERSION));
<a name="l00367"></a>00367 TRACE(<a class="code" href="alleggl_8c.html#09462782acac95f9a6da67adf659ed6e">PREFIX_I</a> <span class="stringliteral">"OpenGL Vendor: %s\n"</span>, (AL_CONST <span class="keywordtype">char</span>*)glGetString(GL_VENDOR));
<a name="l00368"></a>00368 TRACE(<a class="code" href="alleggl_8c.html#09462782acac95f9a6da67adf659ed6e">PREFIX_I</a> <span class="stringliteral">"OpenGL Renderer: %s\n"</span>, (AL_CONST <span class="keywordtype">char</span>*)glGetString(GL_RENDERER));
<a name="l00369"></a>00369
<a name="l00370"></a>00370 <span class="comment">/* Detect if the GL driver is based on Mesa */</span>
<a name="l00371"></a>00371 <a class="code" href="structallegro__gl__info.html">allegro_gl_info</a>.is_mesa_driver = FALSE;
<a name="l00372"></a>00372 <span class="keywordflow">if</span> (strstr((AL_CONST <span class="keywordtype">char</span>*)glGetString(GL_VERSION),<span class="stringliteral">"Mesa"</span>)) {
<a name="l00373"></a>00373 AGL_LOG(1, <span class="stringliteral">"OpenGL driver based on Mesa\n"</span>);
<a name="l00374"></a>00374 <a class="code" href="structallegro__gl__info.html">allegro_gl_info</a>.is_mesa_driver = TRUE;
<a name="l00375"></a>00375 }
<a name="l00376"></a>00376
<a name="l00377"></a>00377 <span class="comment">/* Print out GLX version info */</span>
<a name="l00378"></a>00378 TRACE(<a class="code" href="alleggl_8c.html#09462782acac95f9a6da67adf659ed6e">PREFIX_I</a> <span class="stringliteral">"GLX Version: %d.%d\n"</span>, _glxwin.major, _glxwin.minor);
<a name="l00379"></a>00379
<a name="l00380"></a>00380 <span class="preprocessor">#ifdef LOGLEVEL</span>
<a name="l00381"></a>00381 <span class="preprocessor"></span> <span class="keywordflow">if</span> (glXIsDirect(_xwin.display, _glxwin.ctx)) {
<a name="l00382"></a>00382 AGL_LOG(1, <span class="stringliteral">"GLX Direct Rendering is enabled\n"</span>);
<a name="l00383"></a>00383 }
<a name="l00384"></a>00384 <span class="keywordflow">else</span> {
<a name="l00385"></a>00385 AGL_LOG(1, <span class="stringliteral">"GLX Direct Rendering is disabled\n"</span>);
<a name="l00386"></a>00386 }
<a name="l00387"></a>00387 <span class="preprocessor">#endif</span>
<a name="l00388"></a>00388 <span class="preprocessor"></span>
<a name="l00389"></a>00389 <span class="comment">/* Prints out GLX extensions info */</span>
<a name="l00390"></a>00390 AGL_LOG(1, <span class="stringliteral">"glX Extensions:\n"</span>);
<a name="l00391"></a>00391 <span class="preprocessor">#ifdef LOGLEVEL</span>
<a name="l00392"></a>00392 <span class="preprocessor"></span> <a class="code" href="glext_8c.html#7e93a77377d6d6cb5246c21ba5902fb8">__allegro_gl_print_extensions</a>(
<a name="l00393"></a>00393 (AL_CONST <span class="keywordtype">char</span>*)glXQueryExtensionsString(_xwin.display, _xwin.screen));
<a name="l00394"></a>00394 <span class="preprocessor">#endif</span>
<a name="l00395"></a>00395 <span class="preprocessor"></span> <span class="comment">/* Prints out OpenGL extensions info and activates needed extensions */</span>
<a name="l00396"></a>00396 <a class="code" href="glext_8c.html#04c34dfd05568339ec287045e6e7dead">__allegro_gl_manage_extensions</a>();
<a name="l00397"></a>00397
<a name="l00398"></a>00398 <span class="comment">/* Update screen vtable in order to use AGL's */</span>
<a name="l00399"></a>00399 <a class="code" href="group__glvtable.html#g92174c26d0fca4803d4d5f7cbb8716ec">__allegro_gl__glvtable_update_vtable</a> (&<a class="code" href="alleggl_8c.html#84d9cceae55bf273f9aab7512b353284" title="Direct-mode GL `screen' bitmap.">allegro_gl_screen</a>->vtable);
<a name="l00400"></a>00400 memcpy(&_screen_vtable, <a class="code" href="alleggl_8c.html#84d9cceae55bf273f9aab7512b353284" title="Direct-mode GL `screen' bitmap.">allegro_gl_screen</a>->vtable, <span class="keyword">sizeof</span>(GFX_VTABLE));
<a name="l00401"></a>00401 <a class="code" href="alleggl_8c.html#84d9cceae55bf273f9aab7512b353284" title="Direct-mode GL `screen' bitmap.">allegro_gl_screen</a>->vtable = &_screen_vtable;
<a name="l00402"></a>00402
<a name="l00403"></a>00403 XUNLOCK();
<a name="l00404"></a>00404
<a name="l00405"></a>00405 <span class="keywordflow">if</span> (_keyboard_was_installed) {
<a name="l00406"></a>00406 TRACE(<a class="code" href="alleggl_8c.html#09462782acac95f9a6da67adf659ed6e">PREFIX_I</a> <span class="stringliteral">"x_create_screen: Installing Keyboard...\n"</span>);
<a name="l00407"></a>00407 install_keyboard();
<a name="l00408"></a>00408 }
<a name="l00409"></a>00409
<a name="l00410"></a>00410 <span class="keywordflow">if</span> (_mouse_was_installed) {
<a name="l00411"></a>00411 TRACE(<a class="code" href="alleggl_8c.html#09462782acac95f9a6da67adf659ed6e">PREFIX_I</a> <span class="stringliteral">"x_create_screen: Installing Mouse...\n"</span>);
<a name="l00412"></a>00412 install_mouse();
<a name="l00413"></a>00413 }
<a name="l00414"></a>00414 gfx_capabilities |= GFX_HW_CURSOR;
<a name="l00415"></a>00415
<a name="l00416"></a>00416 <span class="keywordflow">return</span> <a class="code" href="alleggl_8c.html#84d9cceae55bf273f9aab7512b353284" title="Direct-mode GL `screen' bitmap.">allegro_gl_screen</a>;
<a name="l00417"></a>00417
<a name="l00418"></a>00418 failure:
<a name="l00419"></a>00419 <span class="keywordflow">if</span> (_keyboard_was_installed) {
<a name="l00420"></a>00420 install_keyboard();
<a name="l00421"></a>00421 }
<a name="l00422"></a>00422
<a name="l00423"></a>00423 <span class="keywordflow">if</span> (_mouse_was_installed) {
<a name="l00424"></a>00424 install_mouse();
<a name="l00425"></a>00425 }
<a name="l00426"></a>00426
<a name="l00427"></a>00427 <span class="keywordflow">return</span> NULL;
<a name="l00428"></a>00428 }
<a name="l00429"></a>00429
<a name="l00430"></a>00430
<a name="l00431"></a>00431
<a name="l00432"></a>00432 <span class="comment">/* allegro_gl_x_windowed_init:</span>
<a name="l00433"></a>00433 <span class="comment"> * Creates screen bitmap for windowed driver.</span>
<a name="l00434"></a>00434 <span class="comment"> */</span>
<a name="l00435"></a>00435 <span class="keyword">static</span> BITMAP *allegro_gl_x_windowed_init(<span class="keywordtype">int</span> w, <span class="keywordtype">int</span> h, <span class="keywordtype">int</span> vw, <span class="keywordtype">int</span> vh,
<a name="l00436"></a>00436 <span class="keywordtype">int</span> depth)
<a name="l00437"></a>00437 {
<a name="l00438"></a>00438 <span class="keywordflow">return</span> allegro_gl_x_create_screen(w, h, vw, vh, depth, FALSE);
<a name="l00439"></a>00439 }
<a name="l00440"></a>00440
<a name="l00441"></a>00441
<a name="l00442"></a>00442
<a name="l00443"></a>00443 <span class="preprocessor">#ifdef ALLEGROGL_HAVE_XF86VIDMODE</span>
<a name="l00444"></a>00444 <span class="preprocessor"></span><span class="comment">/* allegro_gl_x_fullscreen_init:</span>
<a name="l00445"></a>00445 <span class="comment"> * Creates screen bitmap for fullscreen driver.</span>
<a name="l00446"></a>00446 <span class="comment"> */</span>
<a name="l00447"></a>00447 <span class="keyword">static</span> BITMAP *allegro_gl_x_fullscreen_init(<span class="keywordtype">int</span> w, <span class="keywordtype">int</span> h, <span class="keywordtype">int</span> vw, <span class="keywordtype">int</span> vh,
<a name="l00448"></a>00448 <span class="keywordtype">int</span> depth)
<a name="l00449"></a>00449 {
<a name="l00450"></a>00450 <span class="keywordflow">return</span> allegro_gl_x_create_screen(w, h, vw, vh, depth, TRUE);
<a name="l00451"></a>00451 }
<a name="l00452"></a>00452
<a name="l00453"></a>00453
<a name="l00454"></a>00454
<a name="l00455"></a>00455 <span class="comment">/* free_modelines:</span>
<a name="l00456"></a>00456 <span class="comment"> * Free mode lines.</span>
<a name="l00457"></a>00457 <span class="comment"> */</span>
<a name="l00458"></a>00458 <span class="keyword">static</span> <span class="keywordtype">void</span> free_modelines(XF86VidModeModeInfo **modesinfo, <span class="keywordtype">int</span> num_modes)
<a name="l00459"></a>00459 {
<a name="l00460"></a>00460 <span class="keywordtype">int</span> i;
<a name="l00461"></a>00461
<a name="l00462"></a>00462 <span class="keywordflow">for</span> (i = 0; i < num_modes; i++)
<a name="l00463"></a>00463 <span class="keywordflow">if</span> (modesinfo[i]->privsize > 0)
<a name="l00464"></a>00464 XFree(modesinfo[i]-><span class="keyword">private</span>);
<a name="l00465"></a>00465 XFree(modesinfo);
<a name="l00466"></a>00466 }
<a name="l00467"></a>00467 <span class="preprocessor">#endif</span>
<a name="l00468"></a>00468 <span class="preprocessor"></span>
<a name="l00469"></a>00469
<a name="l00470"></a>00470
<a name="l00471"></a>00471 <span class="comment">/* allegro_gl_x_exit:</span>
<a name="l00472"></a>00472 <span class="comment"> * Shuts down the driver (shared between windowed and full-screen)</span>
<a name="l00473"></a>00473 <span class="comment"> */</span>
<a name="l00474"></a>00474 <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_x_exit(BITMAP *bmp)
<a name="l00475"></a>00475 {
<a name="l00476"></a>00476 <span class="preprocessor">#ifdef ALLEGROGL_HAVE_XF86VIDMODE</span>
<a name="l00477"></a>00477 <span class="preprocessor"></span> XSetWindowAttributes setattr;
<a name="l00478"></a>00478 <span class="preprocessor">#endif</span>
<a name="l00479"></a>00479 <span class="preprocessor"></span>
<a name="l00480"></a>00480 XLOCK();
<a name="l00481"></a>00481 <span class="comment">/* We politely wait for OpenGL to finish its current operations before</span>
<a name="l00482"></a>00482 <span class="comment"> shutting down the driver */</span>
<a name="l00483"></a>00483 glXWaitGL();
<a name="l00484"></a>00484
<a name="l00485"></a>00485 <a class="code" href="glext_8c.html#1e1701cdde00c43165960cc1e5997ec0">__allegro_gl_unmanage_extensions</a>();
<a name="l00486"></a>00486
<a name="l00487"></a>00487 <span class="keywordflow">if</span> (_glxwin.ctx) {
<a name="l00488"></a>00488 <span class="keywordflow">if</span> (!<a class="code" href="structallegro__gl__info.html">allegro_gl_info</a>.is_ati_r200_chip) {
<a name="l00489"></a>00489 <span class="comment">/* The DRI drivers for ATI cards with R200 chip</span>
<a name="l00490"></a>00490 <span class="comment"> * seem to be broken since they crash at this point.</span>
<a name="l00491"></a>00491 <span class="comment"> * As a workaround AGL does not release the GLX context</span>
<a name="l00492"></a>00492 <span class="comment"> * here. This should not hurt since the GLX specs don't</span>
<a name="l00493"></a>00493 <span class="comment"> * require the context to be released before the program</span>
<a name="l00494"></a>00494 <span class="comment"> * ends or before another context is made current to the</span>
<a name="l00495"></a>00495 <span class="comment"> * thread.</span>
<a name="l00496"></a>00496 <span class="comment"> */</span>
<a name="l00497"></a>00497 <span class="keywordflow">if</span> (!glXMakeCurrent(_xwin.display, None, NULL)) {
<a name="l00498"></a>00498 ustrzcpy (allegro_error, ALLEGRO_ERROR_SIZE,
<a name="l00499"></a>00499 get_config_text (<span class="stringliteral">"Could not release drawing context.\n"</span>));
<a name="l00500"></a>00500 }
<a name="l00501"></a>00501 }
<a name="l00502"></a>00502
<a name="l00503"></a>00503 glXDestroyContext(_xwin.display, _glxwin.ctx);
<a name="l00504"></a>00504 _glxwin.ctx = NULL;
<a name="l00505"></a>00505 }
<a name="l00506"></a>00506
<a name="l00507"></a>00507 <span class="keywordflow">if</span> (_xwin.mouse_grabbed) {
<a name="l00508"></a>00508 XUngrabPointer(_xwin.display, CurrentTime);
<a name="l00509"></a>00509 _xwin.mouse_grabbed = 0;
<a name="l00510"></a>00510 }
<a name="l00511"></a>00511
<a name="l00512"></a>00512 <span class="keywordflow">if</span> (_xwin.keyboard_grabbed) {
<a name="l00513"></a>00513 XUngrabKeyboard(_xwin.display, CurrentTime);
<a name="l00514"></a>00514 _xwin.keyboard_grabbed = 0;
<a name="l00515"></a>00515 }
<a name="l00516"></a>00516
<a name="l00517"></a>00517 <span class="preprocessor">#ifdef ALLEGROGL_HAVE_XF86VIDMODE</span>
<a name="l00518"></a>00518 <span class="preprocessor"></span> <span class="keywordflow">if</span> (_glxwin.fullscreen) {
<a name="l00519"></a>00519 <span class="keywordflow">if</span> (_xwin.mode_switched) {
<a name="l00520"></a>00520 XF86VidModeLockModeSwitch(_xwin.display, _xwin.screen, False);
<a name="l00521"></a>00521 XF86VidModeSwitchToMode(_xwin.display, _xwin.screen,
<a name="l00522"></a>00522 _xwin.modesinfo[0]);
<a name="l00523"></a>00523 XF86VidModeSetViewPort(_xwin.display, _xwin.screen, 0, 0);
<a name="l00524"></a>00524 _xwin.mode_switched = 0;
<a name="l00525"></a>00525 }
<a name="l00526"></a>00526 <span class="keywordflow">if</span> (_xwin.override_redirected) {
<a name="l00527"></a>00527 setattr.override_redirect = False;
<a name="l00528"></a>00528 XChangeWindowAttributes(_xwin.display, _xwin.window,
<a name="l00529"></a>00529 CWOverrideRedirect, &setattr);
<a name="l00530"></a>00530 _xwin.override_redirected = 0;
<a name="l00531"></a>00531 }
<a name="l00532"></a>00532
<a name="l00533"></a>00533 <span class="comment">/* Free modelines. */</span>
<a name="l00534"></a>00534 free_modelines(_xwin.modesinfo, _xwin.num_modes);
<a name="l00535"></a>00535 _xwin.num_modes = 0;
<a name="l00536"></a>00536 _xwin.modesinfo = NULL;
<a name="l00537"></a>00537 }
<a name="l00538"></a>00538 <span class="preprocessor">#endif</span>
<a name="l00539"></a>00539 <span class="preprocessor"></span>
<a name="l00540"></a>00540 <span class="comment">/* Note: Allegro will destroy screen (== allegro_gl_screen),</span>
<a name="l00541"></a>00541 <span class="comment"> * so don't destroy it here.</span>
<a name="l00542"></a>00542 <span class="comment"> */</span>
<a name="l00543"></a>00543 <span class="comment">//destroy_bitmap(allegro_gl_screen);</span>
<a name="l00544"></a>00544 ASSERT(<a class="code" href="alleggl_8c.html#84d9cceae55bf273f9aab7512b353284" title="Direct-mode GL `screen' bitmap.">allegro_gl_screen</a> == screen);
<a name="l00545"></a>00545 <a class="code" href="alleggl_8c.html#84d9cceae55bf273f9aab7512b353284" title="Direct-mode GL `screen' bitmap.">allegro_gl_screen</a> = NULL;
<a name="l00546"></a>00546
<a name="l00547"></a>00547 <span class="comment">/* Unmap the window in order not to see the cursor when quitting.</span>
<a name="l00548"></a>00548 <span class="comment"> The window *must not* be destroyed and _xwin.visual must be left</span>
<a name="l00549"></a>00549 <span class="comment"> to its current value otherwise the program will crash when exiting */</span>
<a name="l00550"></a>00550 XUnmapWindow(_xwin.display, _xwin.window);
<a name="l00551"></a>00551
<a name="l00552"></a>00552 <span class="keywordflow">if</span> (_glxwin.use_glx_window) {
<a name="l00553"></a>00553 glXDestroyWindow(_xwin.display, _glxwin.window);
<a name="l00554"></a>00554 _glxwin.window = 0;
<a name="l00555"></a>00555 _glxwin.use_glx_window = FALSE;
<a name="l00556"></a>00556 }
<a name="l00557"></a>00557
<a name="l00558"></a>00558 <a class="code" href="alleggl_8c.html#1cf577416af8a45cce479746114d7acb">__allegro_gl_valid_context</a> = FALSE;
<a name="l00559"></a>00559
<a name="l00560"></a>00560 _xwin_window_redrawer = old_window_redrawer;
<a name="l00561"></a>00561 XSetErrorHandler(old_x_error_handler);
<a name="l00562"></a>00562
<a name="l00563"></a>00563
<a name="l00564"></a>00564 <span class="preprocessor">#if GET_ALLEGRO_VERSION() >= MAKE_VER(4, 2, 1)</span>
<a name="l00565"></a>00565 <span class="preprocessor"></span> <span class="comment">/* Hack: Allegro 4.2.1 uses a persistent window, we need to restore it. */</span>
<a name="l00566"></a>00566 <span class="keywordflow">if</span> (backup_allegro_window != None) {
<a name="l00567"></a>00567 XUninstallColormap(_xwin.display, _xwin.colormap);
<a name="l00568"></a>00568 XFreeColormap(_xwin.display, _xwin.colormap);
<a name="l00569"></a>00569 _xwin.colormap = backup_allegro_colormap;
<a name="l00570"></a>00570
<a name="l00571"></a>00571 XDestroyWindow(_xwin.display, _xwin.window);
<a name="l00572"></a>00572 _xwin.window = backup_allegro_window;
<a name="l00573"></a>00573 backup_allegro_window = None;
<a name="l00574"></a>00574 XMapWindow(_xwin.display, _xwin.window);
<a name="l00575"></a>00575 }
<a name="l00576"></a>00576 <span class="preprocessor">#endif</span>
<a name="l00577"></a>00577 <span class="preprocessor"></span>
<a name="l00578"></a>00578 XUNLOCK();
<a name="l00579"></a>00579 }
<a name="l00580"></a>00580
<a name="l00581"></a>00581
<a name="l00582"></a>00582
<a name="l00583"></a>00583 <span class="comment">/* get_shift:</span>
<a name="l00584"></a>00584 <span class="comment"> * Returns the shift value for a given mask.</span>
<a name="l00585"></a>00585 <span class="comment"> */</span>
<a name="l00586"></a>00586 <span class="keyword">static</span> <span class="keywordtype">int</span> get_shift (<span class="keywordtype">int</span> mask)
<a name="l00587"></a>00587 {
<a name="l00588"></a>00588 <span class="keywordtype">int</span> i = 0, j = 1;
<a name="l00589"></a>00589 <span class="keywordflow">if</span> (!mask) <span class="keywordflow">return</span> -1;
<a name="l00590"></a>00590 <span class="keywordflow">while</span> (!(j & mask)) {
<a name="l00591"></a>00591 i++;
<a name="l00592"></a>00592 j <<= 1;
<a name="l00593"></a>00593 }
<a name="l00594"></a>00594 <span class="keywordflow">return</span> i;
<a name="l00595"></a>00595 }
<a name="l00596"></a>00596
<a name="l00597"></a>00597
<a name="l00598"></a>00598
<a name="l00599"></a>00599 <span class="keyword">static</span> <span class="keywordtype">int</span> decode_fbconfig (GLXFBConfig fbc, <span class="keyword">struct</span> <a class="code" href="structallegro__gl__display__info.html">allegro_gl_display_info</a> *i) {
<a name="l00600"></a>00600 <span class="keywordtype">int</span> render_type, visual_type, buffer_size, sbuffers, samples;
<a name="l00601"></a>00601 <span class="keywordtype">int</span> drawable_type, renderable;
<a name="l00602"></a>00602 XVisualInfo *v;
<a name="l00603"></a>00603
<a name="l00604"></a>00604 TRACE(<a class="code" href="alleggl_8c.html#09462782acac95f9a6da67adf659ed6e">PREFIX_I</a> <span class="stringliteral">"decode_fbconfig: Decoding:\n"</span>);
<a name="l00605"></a>00605 i-><a class="code" href="structallegro__gl__display__info.html#279d45652a733a6c94846859f1aa0c0b">rmethod</a> = 2;
<a name="l00606"></a>00606
<a name="l00607"></a>00607 <span class="keywordflow">if</span> (glXGetFBConfigAttrib (_xwin.display, fbc, GLX_RENDER_TYPE,
<a name="l00608"></a>00608 &render_type)
<a name="l00609"></a>00609 || glXGetFBConfigAttrib (_xwin.display, fbc, GLX_X_RENDERABLE,
<a name="l00610"></a>00610 &renderable)
<a name="l00611"></a>00611 || glXGetFBConfigAttrib (_xwin.display, fbc, GLX_DRAWABLE_TYPE,
<a name="l00612"></a>00612 &drawable_type)
<a name="l00613"></a>00613 || glXGetFBConfigAttrib (_xwin.display, fbc, GLX_X_VISUAL_TYPE,
<a name="l00614"></a>00614 &visual_type)
<a name="l00615"></a>00615 || glXGetFBConfigAttrib (_xwin.display, fbc, GLX_BUFFER_SIZE,
<a name="l00616"></a>00616 &buffer_size)
<a name="l00617"></a>00617 || glXGetFBConfigAttrib (_xwin.display, fbc, GLX_DEPTH_SIZE,
<a name="l00618"></a>00618 &i-><a class="code" href="structallegro__gl__display__info.html#0b5eaf55c97e5be1bec507ca8d1c45c7">depth_size</a>)
<a name="l00619"></a>00619 || glXGetFBConfigAttrib (_xwin.display, fbc, GLX_STEREO,
<a name="l00620"></a>00620 &i-><a class="code" href="structallegro__gl__display__info.html#5c5e59ff093bcfe869460636eda46f01">stereo</a>)
<a name="l00621"></a>00621 || glXGetFBConfigAttrib (_xwin.display, fbc, GLX_RED_SIZE,
<a name="l00622"></a>00622 &i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#f9de518467fa0b1532e8eba66538be09">r</a>)
<a name="l00623"></a>00623 || glXGetFBConfigAttrib (_xwin.display, fbc, GLX_GREEN_SIZE,
<a name="l00624"></a>00624 &i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#b3eb1168ad9bc3d02b523b032f856b6c">g</a>)
<a name="l00625"></a>00625 || glXGetFBConfigAttrib (_xwin.display, fbc, GLX_BLUE_SIZE,
<a name="l00626"></a>00626 &i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#cd92a14a0bbb205a634295e18f00bd87">b</a>)
<a name="l00627"></a>00627 || glXGetFBConfigAttrib (_xwin.display, fbc, GLX_ALPHA_SIZE,
<a name="l00628"></a>00628 &i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#87c70ef6046f7b5649c66590c102e0c4">a</a>)
<a name="l00629"></a>00629 || glXGetFBConfigAttrib (_xwin.display, fbc, GLX_DOUBLEBUFFER,
<a name="l00630"></a>00630 &i-><a class="code" href="structallegro__gl__display__info.html#620e7a0c77ce365b470b1bf629960989">doublebuffered</a>)
<a name="l00631"></a>00631 || glXGetFBConfigAttrib (_xwin.display, fbc, GLX_AUX_BUFFERS,
<a name="l00632"></a>00632 &i-><a class="code" href="structallegro__gl__display__info.html#b0a89d6d93a3c8e565bfcfef23ae8fb8">aux_buffers</a>)
<a name="l00633"></a>00633 || glXGetFBConfigAttrib (_xwin.display, fbc, GLX_STENCIL_SIZE,
<a name="l00634"></a>00634 &i-><a class="code" href="structallegro__gl__display__info.html#fefde83b0454134e9980524577022f50">stencil_size</a>)
<a name="l00635"></a>00635 || glXGetFBConfigAttrib (_xwin.display, fbc, GLX_ACCUM_RED_SIZE,
<a name="l00636"></a>00636 &i-><a class="code" href="structallegro__gl__display__info.html#7f87a49c909fc0d69eb8b0729ec3afc6">accum_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#f9de518467fa0b1532e8eba66538be09">r</a>)
<a name="l00637"></a>00637 || glXGetFBConfigAttrib (_xwin.display, fbc, GLX_ACCUM_GREEN_SIZE,
<a name="l00638"></a>00638 &i-><a class="code" href="structallegro__gl__display__info.html#7f87a49c909fc0d69eb8b0729ec3afc6">accum_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#b3eb1168ad9bc3d02b523b032f856b6c">g</a>)
<a name="l00639"></a>00639 || glXGetFBConfigAttrib (_xwin.display, fbc, GLX_ACCUM_BLUE_SIZE,
<a name="l00640"></a>00640 &i-><a class="code" href="structallegro__gl__display__info.html#7f87a49c909fc0d69eb8b0729ec3afc6">accum_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#cd92a14a0bbb205a634295e18f00bd87">b</a>)
<a name="l00641"></a>00641 || glXGetFBConfigAttrib (_xwin.display, fbc, GLX_ACCUM_ALPHA_SIZE,
<a name="l00642"></a>00642 &i-><a class="code" href="structallegro__gl__display__info.html#7f87a49c909fc0d69eb8b0729ec3afc6">accum_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#87c70ef6046f7b5649c66590c102e0c4">a</a>)) {
<a name="l00643"></a>00643 TRACE(<a class="code" href="alleggl_8c.html#09462782acac95f9a6da67adf659ed6e">PREFIX_I</a> <span class="stringliteral">"decode_fbconfig: Incomplete glX mode ...\n"</span>);
<a name="l00644"></a>00644 <span class="keywordflow">return</span> -1;
<a name="l00645"></a>00645 }
<a name="l00646"></a>00646
<a name="l00647"></a>00647 <span class="keywordflow">if</span> (!(render_type & GLX_RGBA_BIT) && !(render_type & GLX_RGBA_FLOAT_BIT)) {
<a name="l00648"></a>00648 TRACE(<a class="code" href="alleggl_8c.html#09462782acac95f9a6da67adf659ed6e">PREFIX_I</a> <span class="stringliteral">"decode_fbconfig: Not RGBA mode\n"</span>);
<a name="l00649"></a>00649 <span class="keywordflow">return</span> -1;
<a name="l00650"></a>00650 }
<a name="l00651"></a>00651
<a name="l00652"></a>00652 <span class="keywordflow">if</span> (!(drawable_type & GLX_WINDOW_BIT)) {
<a name="l00653"></a>00653 TRACE(<a class="code" href="alleggl_8c.html#09462782acac95f9a6da67adf659ed6e">PREFIX_I</a> <span class="stringliteral">"decode_fbconfig: Cannot render to a window.\n"</span>);
<a name="l00654"></a>00654 <span class="keywordflow">return</span> -1;
<a name="l00655"></a>00655 }
<a name="l00656"></a>00656
<a name="l00657"></a>00657 <span class="keywordflow">if</span> (renderable == False) {
<a name="l00658"></a>00658 TRACE(<a class="code" href="alleggl_8c.html#09462782acac95f9a6da67adf659ed6e">PREFIX_I</a> <span class="stringliteral">"decode_fbconfig: GLX windows not supported.\n"</span>);
<a name="l00659"></a>00659 <span class="keywordflow">return</span> -1;
<a name="l00660"></a>00660 }
<a name="l00661"></a>00661
<a name="l00662"></a>00662 <span class="keywordflow">if</span> (visual_type != GLX_TRUE_COLOR && visual_type != GLX_DIRECT_COLOR) {
<a name="l00663"></a>00663 TRACE(<a class="code" href="alleggl_8c.html#09462782acac95f9a6da67adf659ed6e">PREFIX_I</a> <span class="stringliteral">"decode_fbconfig: visual type other than TrueColor and "</span>
<a name="l00664"></a>00664 <span class="stringliteral">"DirectColor.\n"</span>);
<a name="l00665"></a>00665 <span class="keywordflow">return</span> -1;
<a name="l00666"></a>00666 }
<a name="l00667"></a>00667
<a name="l00668"></a>00668 <span class="comment">/* Floating-point depth is not supported as glx extension (yet). */</span>
<a name="l00669"></a>00669 i-><a class="code" href="structallegro__gl__display__info.html#44a555fa41bcd28266350078125a8a91">float_depth</a> = 0;
<a name="l00670"></a>00670
<a name="l00671"></a>00671 i-><a class="code" href="structallegro__gl__display__info.html#c2a75c18dd42e5ee730eb42d862aed40">float_color</a> = (render_type & GLX_RGBA_FLOAT_BIT);
<a name="l00672"></a>00672
<a name="l00673"></a>00673 v = glXGetVisualFromFBConfig(_xwin.display, fbc);
<a name="l00674"></a>00674 <span class="keywordflow">if</span> (!v) {
<a name="l00675"></a>00675 TRACE(<a class="code" href="alleggl_8c.html#09462782acac95f9a6da67adf659ed6e">PREFIX_I</a> <span class="stringliteral">"decode_fbconfig: Cannot get associated visual for the "</span>
<a name="l00676"></a>00676 <span class="stringliteral">"FBConfig.\n"</span>);
<a name="l00677"></a>00677 <span class="keywordflow">return</span> -1;
<a name="l00678"></a>00678 }
<a name="l00679"></a>00679 i-><a class="code" href="structallegro__gl__display__info.html#29ac4703ce51b7b70326eb374186ad32">r_shift</a> = get_shift (v->red_mask);
<a name="l00680"></a>00680 i-><a class="code" href="structallegro__gl__display__info.html#14d5a551c67db5c5083ffa310ff6bd00">g_shift</a> = get_shift (v->green_mask);
<a name="l00681"></a>00681 i-><a class="code" href="structallegro__gl__display__info.html#7b626c8827c8198deaf26071fd46833e">b_shift</a> = get_shift (v->blue_mask);
<a name="l00682"></a>00682 i-><a class="code" href="structallegro__gl__display__info.html#8350647b4bbeaf745bb055bf923065f7">a_shift</a> = 0;
<a name="l00683"></a>00683
<a name="l00684"></a>00684 <span class="comment">/* If we are going to need to setup a palette we need bit shifts */</span>
<a name="l00685"></a>00685 <span class="keywordflow">if</span> ((visual_type == GLX_DIRECT_COLOR)
<a name="l00686"></a>00686 && ((i-><a class="code" href="structallegro__gl__display__info.html#29ac4703ce51b7b70326eb374186ad32">r_shift</a> == -1) || (i-><a class="code" href="structallegro__gl__display__info.html#14d5a551c67db5c5083ffa310ff6bd00">g_shift</a> == -1) || (i-><a class="code" href="structallegro__gl__display__info.html#7b626c8827c8198deaf26071fd46833e">b_shift</a> == -1))
<a name="l00687"></a>00687 && (i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#f9de518467fa0b1532e8eba66538be09">r</a> + i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#b3eb1168ad9bc3d02b523b032f856b6c">g</a> + i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#cd92a14a0bbb205a634295e18f00bd87">b</a>
<a name="l00688"></a>00688 <= 12)) {
<a name="l00689"></a>00689 <span class="comment">/* XXX <rohannessian> Report something here? */</span>
<a name="l00690"></a>00690 XFree(v);
<a name="l00691"></a>00691 <span class="keywordflow">return</span> -1;
<a name="l00692"></a>00692 }
<a name="l00693"></a>00693
<a name="l00694"></a>00694 i-><a class="code" href="structallegro__gl__display__info.html#736c31eafe099ac504e844b8fb3ab963">colour_depth</a> = 0;
<a name="l00695"></a>00695
<a name="l00696"></a>00696 <span class="keywordflow">if</span> (i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#f9de518467fa0b1532e8eba66538be09">r</a> == 3
<a name="l00697"></a>00697 && i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#b3eb1168ad9bc3d02b523b032f856b6c">g</a> == 3
<a name="l00698"></a>00698 && i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#cd92a14a0bbb205a634295e18f00bd87">b</a> == 2) {
<a name="l00699"></a>00699 i-><a class="code" href="structallegro__gl__display__info.html#736c31eafe099ac504e844b8fb3ab963">colour_depth</a> = 8;
<a name="l00700"></a>00700 }
<a name="l00701"></a>00701
<a name="l00702"></a>00702 <span class="keywordflow">if</span> (i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#f9de518467fa0b1532e8eba66538be09">r</a> == 5
<a name="l00703"></a>00703 && i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#cd92a14a0bbb205a634295e18f00bd87">b</a> == 5) {
<a name="l00704"></a>00704 <span class="keywordflow">if</span> (i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#b3eb1168ad9bc3d02b523b032f856b6c">g</a> == 5) {
<a name="l00705"></a>00705 i-><a class="code" href="structallegro__gl__display__info.html#736c31eafe099ac504e844b8fb3ab963">colour_depth</a> = 15;
<a name="l00706"></a>00706 }
<a name="l00707"></a>00707 <span class="keywordflow">if</span> (i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#b3eb1168ad9bc3d02b523b032f856b6c">g</a> == 6) {
<a name="l00708"></a>00708 i-><a class="code" href="structallegro__gl__display__info.html#736c31eafe099ac504e844b8fb3ab963">colour_depth</a> = 16;
<a name="l00709"></a>00709 }
<a name="l00710"></a>00710 }
<a name="l00711"></a>00711
<a name="l00712"></a>00712 <span class="keywordflow">if</span> (i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#f9de518467fa0b1532e8eba66538be09">r</a> == 8
<a name="l00713"></a>00713 && i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#b3eb1168ad9bc3d02b523b032f856b6c">g</a> == 8
<a name="l00714"></a>00714 && i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#cd92a14a0bbb205a634295e18f00bd87">b</a> == 8) {
<a name="l00715"></a>00715 <span class="keywordflow">if</span> (i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#87c70ef6046f7b5649c66590c102e0c4">a</a> == 0) {
<a name="l00716"></a>00716 i-><a class="code" href="structallegro__gl__display__info.html#736c31eafe099ac504e844b8fb3ab963">colour_depth</a> = 24;
<a name="l00717"></a>00717 }
<a name="l00718"></a>00718 <span class="keywordflow">if</span> (i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#87c70ef6046f7b5649c66590c102e0c4">a</a> == 8) {
<a name="l00719"></a>00719 i-><a class="code" href="structallegro__gl__display__info.html#736c31eafe099ac504e844b8fb3ab963">colour_depth</a> = 32;
<a name="l00720"></a>00720 <span class="comment">/* small hack that tries to guess alpha shifting */</span>
<a name="l00721"></a>00721 i-><a class="code" href="structallegro__gl__display__info.html#8350647b4bbeaf745bb055bf923065f7">a_shift</a> = 48 - i-><a class="code" href="structallegro__gl__display__info.html#29ac4703ce51b7b70326eb374186ad32">r_shift</a> - i-><a class="code" href="structallegro__gl__display__info.html#14d5a551c67db5c5083ffa310ff6bd00">g_shift</a> - i-><a class="code" href="structallegro__gl__display__info.html#7b626c8827c8198deaf26071fd46833e">b_shift</a>;
<a name="l00722"></a>00722 }
<a name="l00723"></a>00723 }
<a name="l00724"></a>00724
<a name="l00725"></a>00725 i-><a class="code" href="structallegro__gl__display__info.html#52dbe65e088cbeaa1ffe179eacc42571">allegro_format</a> = (i-><a class="code" href="structallegro__gl__display__info.html#736c31eafe099ac504e844b8fb3ab963">colour_depth</a> != 0)
<a name="l00726"></a>00726 && (i-><a class="code" href="structallegro__gl__display__info.html#14d5a551c67db5c5083ffa310ff6bd00">g_shift</a> == i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#cd92a14a0bbb205a634295e18f00bd87">b</a>)
<a name="l00727"></a>00727 && (i-><a class="code" href="structallegro__gl__display__info.html#29ac4703ce51b7b70326eb374186ad32">r_shift</a> * i-><a class="code" href="structallegro__gl__display__info.html#7b626c8827c8198deaf26071fd46833e">b_shift</a> == 0)
<a name="l00728"></a>00728 && (i-><a class="code" href="structallegro__gl__display__info.html#29ac4703ce51b7b70326eb374186ad32">r_shift</a> + i-><a class="code" href="structallegro__gl__display__info.html#7b626c8827c8198deaf26071fd46833e">b_shift</a>
<a name="l00729"></a>00729 == i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#cd92a14a0bbb205a634295e18f00bd87">b</a> + i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#b3eb1168ad9bc3d02b523b032f856b6c">g</a>);
<a name="l00730"></a>00730
<a name="l00731"></a>00731 <span class="keywordflow">if</span> (glXGetConfig(_xwin.display, v, GLX_SAMPLE_BUFFERS, &sbuffers)) {
<a name="l00732"></a>00732 <span class="comment">/* Multisample extension is not supported */</span>
<a name="l00733"></a>00733 i-><a class="code" href="structallegro__gl__display__info.html#07036f3d972acefc5790df1ab33190d6">sample_buffers</a> = 0;
<a name="l00734"></a>00734 }
<a name="l00735"></a>00735 <span class="keywordflow">else</span> {
<a name="l00736"></a>00736 i-><a class="code" href="structallegro__gl__display__info.html#07036f3d972acefc5790df1ab33190d6">sample_buffers</a> = sbuffers;
<a name="l00737"></a>00737 }
<a name="l00738"></a>00738 <span class="keywordflow">if</span> (glXGetConfig(_xwin.display, v, GLX_SAMPLES, &samples)) {
<a name="l00739"></a>00739 <span class="comment">/* Multisample extension is not supported */</span>
<a name="l00740"></a>00740 i-><a class="code" href="structallegro__gl__display__info.html#6bb01a18a7aa16e08d544f1b81536b44">samples</a> = 0;
<a name="l00741"></a>00741 }
<a name="l00742"></a>00742 <span class="keywordflow">else</span> {
<a name="l00743"></a>00743 i-><a class="code" href="structallegro__gl__display__info.html#6bb01a18a7aa16e08d544f1b81536b44">samples</a> = samples;
<a name="l00744"></a>00744 }
<a name="l00745"></a>00745
<a name="l00746"></a>00746 XFree(v);
<a name="l00747"></a>00747
<a name="l00748"></a>00748 TRACE(<a class="code" href="alleggl_8c.html#09462782acac95f9a6da67adf659ed6e">PREFIX_I</a> <span class="stringliteral">"Color Depth: %i\n"</span>, buffer_size);
<a name="l00749"></a>00749 TRACE(<a class="code" href="alleggl_8c.html#09462782acac95f9a6da67adf659ed6e">PREFIX_I</a> <span class="stringliteral">"RGBA Type: %s point\n"</span>, i-><a class="code" href="structallegro__gl__display__info.html#c2a75c18dd42e5ee730eb42d862aed40">float_color</a> ? <span class="stringliteral">"floating"</span> : <span class="stringliteral">"fixed"</span>);
<a name="l00750"></a>00750 TRACE(<a class="code" href="alleggl_8c.html#09462782acac95f9a6da67adf659ed6e">PREFIX_I</a> <span class="stringliteral">"RGBA: %i.%i.%i.%i\n"</span>, i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#f9de518467fa0b1532e8eba66538be09">r</a>, i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#b3eb1168ad9bc3d02b523b032f856b6c">g</a>,
<a name="l00751"></a>00751 i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#cd92a14a0bbb205a634295e18f00bd87">b</a>, i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#87c70ef6046f7b5649c66590c102e0c4">a</a>);
<a name="l00752"></a>00752 TRACE(<a class="code" href="alleggl_8c.html#09462782acac95f9a6da67adf659ed6e">PREFIX_I</a> <span class="stringliteral">"Accum: %i.%i.%i.%i\n"</span>, i-><a class="code" href="structallegro__gl__display__info.html#7f87a49c909fc0d69eb8b0729ec3afc6">accum_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#f9de518467fa0b1532e8eba66538be09">r</a>, i-><a class="code" href="structallegro__gl__display__info.html#7f87a49c909fc0d69eb8b0729ec3afc6">accum_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#b3eb1168ad9bc3d02b523b032f856b6c">g</a>,
<a name="l00753"></a>00753 i-><a class="code" href="structallegro__gl__display__info.html#7f87a49c909fc0d69eb8b0729ec3afc6">accum_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#cd92a14a0bbb205a634295e18f00bd87">b</a>, i-><a class="code" href="structallegro__gl__display__info.html#7f87a49c909fc0d69eb8b0729ec3afc6">accum_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#87c70ef6046f7b5649c66590c102e0c4">a</a>);
<a name="l00754"></a>00754 TRACE(<a class="code" href="alleggl_8c.html#09462782acac95f9a6da67adf659ed6e">PREFIX_I</a> <span class="stringliteral">"DblBuf: %i Zbuf: %i Stereo: %i Aux: %i Stencil: %i\n"</span>,
<a name="l00755"></a>00755 i-><a class="code" href="structallegro__gl__display__info.html#620e7a0c77ce365b470b1bf629960989">doublebuffered</a>, i-><a class="code" href="structallegro__gl__display__info.html#0b5eaf55c97e5be1bec507ca8d1c45c7">depth_size</a>, i-><a class="code" href="structallegro__gl__display__info.html#5c5e59ff093bcfe869460636eda46f01">stereo</a>,
<a name="l00756"></a>00756 i-><a class="code" href="structallegro__gl__display__info.html#b0a89d6d93a3c8e565bfcfef23ae8fb8">aux_buffers</a>, i-><a class="code" href="structallegro__gl__display__info.html#fefde83b0454134e9980524577022f50">stencil_size</a>);
<a name="l00757"></a>00757 TRACE(<a class="code" href="alleggl_8c.html#09462782acac95f9a6da67adf659ed6e">PREFIX_I</a> <span class="stringliteral">"Shift: %i.%i.%i.%i\n"</span>, i-><a class="code" href="structallegro__gl__display__info.html#29ac4703ce51b7b70326eb374186ad32">r_shift</a>, i-><a class="code" href="structallegro__gl__display__info.html#14d5a551c67db5c5083ffa310ff6bd00">g_shift</a>, i-><a class="code" href="structallegro__gl__display__info.html#7b626c8827c8198deaf26071fd46833e">b_shift</a>,
<a name="l00758"></a>00758 i-><a class="code" href="structallegro__gl__display__info.html#8350647b4bbeaf745bb055bf923065f7">a_shift</a>);
<a name="l00759"></a>00759 TRACE(<a class="code" href="alleggl_8c.html#09462782acac95f9a6da67adf659ed6e">PREFIX_I</a> <span class="stringliteral">"Sample Buffers: %i Samples: %i\n"</span>, i-><a class="code" href="structallegro__gl__display__info.html#07036f3d972acefc5790df1ab33190d6">sample_buffers</a>, i-><a class="code" href="structallegro__gl__display__info.html#6bb01a18a7aa16e08d544f1b81536b44">samples</a>);
<a name="l00760"></a>00760 TRACE(<a class="code" href="alleggl_8c.html#09462782acac95f9a6da67adf659ed6e">PREFIX_I</a> <span class="stringliteral">"Decoded bpp: %i\n"</span>, i-><a class="code" href="structallegro__gl__display__info.html#736c31eafe099ac504e844b8fb3ab963">colour_depth</a>);
<a name="l00761"></a>00761
<a name="l00762"></a>00762 <span class="keywordflow">return</span> 0;
<a name="l00763"></a>00763 }
<a name="l00764"></a>00764
<a name="l00765"></a>00765
<a name="l00766"></a>00766
<a name="l00767"></a>00767 <span class="keywordtype">int</span> allegro_gl_x_windowed_choose_fbconfig (GLXFBConfig *ret_fbconfig) {
<a name="l00768"></a>00768 <span class="keywordtype">int</span> num_fbconfigs, i;
<a name="l00769"></a>00769 GLXFBConfig *fbconfig;
<a name="l00770"></a>00770 <span class="keyword">struct </span><a class="code" href="structallegro__gl__display__info.html">allegro_gl_display_info</a> dinfo;
<a name="l00771"></a>00771
<a name="l00772"></a>00772 fbconfig = glXGetFBConfigs (_xwin.display, _xwin.screen, &num_fbconfigs);
<a name="l00773"></a>00773 <span class="keywordflow">if</span> (!fbconfig || !num_fbconfigs)
<a name="l00774"></a>00774 <span class="keywordflow">return</span> FALSE;
<a name="l00775"></a>00775
<a name="l00776"></a>00776 TRACE(<a class="code" href="alleggl_8c.html#09462782acac95f9a6da67adf659ed6e">PREFIX_I</a> <span class="stringliteral">"x_windowed_choose_fbconfig: %i formats.\n"</span>, num_fbconfigs);
<a name="l00777"></a>00777 <a class="code" href="scorer_8c.html#6ddb380847e299bb8edc53523a57a154">__allegro_gl_reset_scorer</a>();
<a name="l00778"></a>00778
<a name="l00779"></a>00779 <span class="keywordflow">for</span> (i = 0; i < num_fbconfigs; i++) {
<a name="l00780"></a>00780 TRACE(<a class="code" href="alleggl_8c.html#09462782acac95f9a6da67adf659ed6e">PREFIX_I</a> <span class="stringliteral">"x_windowed_choose_fbconfig: Mode %i\n"</span>, i);
<a name="l00781"></a>00781 <span class="keywordflow">if</span> (decode_fbconfig (*(fbconfig + i), &dinfo) != -1) {
<a name="l00782"></a>00782 <a class="code" href="scorer_8c.html#c4c1245f9bd11ca076baeb6d69bdff09">__allegro_gl_score_config</a> (i, &dinfo);
<a name="l00783"></a>00783 }
<a name="l00784"></a>00784 }
<a name="l00785"></a>00785
<a name="l00786"></a>00786 i = <a class="code" href="scorer_8c.html#6e0629d170166490908ac6471bbd0a0d">__allegro_gl_best_config</a>();
<a name="l00787"></a>00787 TRACE(<a class="code" href="alleggl_8c.html#09462782acac95f9a6da67adf659ed6e">PREFIX_I</a> <span class="stringliteral">"x_windowed_choose_fbconfig: Best FBConfig is: %i\n"</span>, i);
<a name="l00788"></a>00788
<a name="l00789"></a>00789 <span class="keywordflow">if</span> (i < 0) {
<a name="l00790"></a>00790 XFree(fbconfig);
<a name="l00791"></a>00791 <span class="keywordflow">return</span> FALSE;
<a name="l00792"></a>00792 }
<a name="l00793"></a>00793
<a name="l00794"></a>00794 *ret_fbconfig = *(fbconfig + i);
<a name="l00795"></a>00795 XFree(fbconfig);
<a name="l00796"></a>00796
<a name="l00797"></a>00797 <span class="keywordflow">return</span> TRUE;
<a name="l00798"></a>00798 }
<a name="l00799"></a>00799
<a name="l00800"></a>00800
<a name="l00801"></a>00801
<a name="l00802"></a>00802 <span class="comment">/* windowed_choose_visual:</span>
<a name="l00803"></a>00803 <span class="comment"> * Chooses a visual to use.</span>
<a name="l00804"></a>00804 <span class="comment"> */</span>
<a name="l00805"></a>00805 <span class="keyword">static</span> XVisualInfo *allegro_gl_x_windowed_choose_visual (<span class="keywordtype">void</span>)
<a name="l00806"></a>00806 {
<a name="l00807"></a>00807 <span class="keywordtype">int</span> num_visuals, i;
<a name="l00808"></a>00808 XVisualInfo *vinfo;
<a name="l00809"></a>00809 <span class="keyword">struct </span><a class="code" href="structallegro__gl__display__info.html">allegro_gl_display_info</a> dinfo;
<a name="l00810"></a>00810 <span class="keyword">static</span> XVisualInfo ret_vinfo;
<a name="l00811"></a>00811
<a name="l00812"></a>00812 vinfo = XGetVisualInfo (_xwin.display, 0, NULL, &num_visuals);
<a name="l00813"></a>00813 <span class="keywordflow">if</span> (!vinfo) <span class="keywordflow">return</span> NULL;
<a name="l00814"></a>00814
<a name="l00815"></a>00815 TRACE(<a class="code" href="alleggl_8c.html#09462782acac95f9a6da67adf659ed6e">PREFIX_I</a> <span class="stringliteral">"x_windowed_choose_visual: %i formats.\n"</span>, num_visuals);
<a name="l00816"></a>00816 <a class="code" href="scorer_8c.html#6ddb380847e299bb8edc53523a57a154">__allegro_gl_reset_scorer</a>();
<a name="l00817"></a>00817
<a name="l00818"></a>00818 <span class="keywordflow">for</span> (i = 0; i < num_visuals; i++) {
<a name="l00819"></a>00819 TRACE(<a class="code" href="alleggl_8c.html#09462782acac95f9a6da67adf659ed6e">PREFIX_I</a> <span class="stringliteral">"x_windowed_choose_visual: Mode %i\n"</span>, i);
<a name="l00820"></a>00820 <span class="keywordflow">if</span> (decode_visual (vinfo + i, &dinfo) != -1) {
<a name="l00821"></a>00821 <a class="code" href="scorer_8c.html#c4c1245f9bd11ca076baeb6d69bdff09">__allegro_gl_score_config</a> (i, &dinfo);
<a name="l00822"></a>00822 }
<a name="l00823"></a>00823 }
<a name="l00824"></a>00824
<a name="l00825"></a>00825 i = <a class="code" href="scorer_8c.html#6e0629d170166490908ac6471bbd0a0d">__allegro_gl_best_config</a>();
<a name="l00826"></a>00826 TRACE(<a class="code" href="alleggl_8c.html#09462782acac95f9a6da67adf659ed6e">PREFIX_I</a> <span class="stringliteral">"x_windowed_choose_visual: Best config is: %i\n"</span>, i);
<a name="l00827"></a>00827
<a name="l00828"></a>00828 <span class="keywordflow">if</span> (i < 0) <span class="keywordflow">return</span> NULL;
<a name="l00829"></a>00829
<a name="l00830"></a>00830 memcpy (&ret_vinfo, vinfo+i, <span class="keyword">sizeof</span> ret_vinfo);
<a name="l00831"></a>00831 XFree (vinfo);
<a name="l00832"></a>00832
<a name="l00833"></a>00833 <span class="keywordflow">return</span> &ret_vinfo;
<a name="l00834"></a>00834 }
<a name="l00835"></a>00835
<a name="l00836"></a>00836
<a name="l00837"></a>00837
<a name="l00838"></a>00838 <span class="preprocessor">#ifdef ALLEGROGL_HAVE_XF86VIDMODE</span>
<a name="l00839"></a>00839 <span class="preprocessor"></span><span class="comment">/* get_xf86_modes:</span>
<a name="l00840"></a>00840 <span class="comment"> * Test if the XF86VidMode extension is available and get the gfx modes</span>
<a name="l00841"></a>00841 <span class="comment"> * that can be queried.</span>
<a name="l00842"></a>00842 <span class="comment"> */</span>
<a name="l00843"></a>00843 <span class="keyword">static</span> <span class="keywordtype">int</span> get_xf86_modes(XF86VidModeModeInfo ***modesinfo, <span class="keywordtype">int</span> *num_modes)
<a name="l00844"></a>00844 {
<a name="l00845"></a>00845 <span class="keywordtype">int</span> vid_event_base, vid_error_base;
<a name="l00846"></a>00846 <span class="keywordtype">int</span> vid_major_version, vid_minor_version;
<a name="l00847"></a>00847
<a name="l00848"></a>00848 <span class="comment">/* Test for presence of VidMode extension. */</span>
<a name="l00849"></a>00849 <span class="keywordflow">if</span> (!XF86VidModeQueryExtension(_xwin.display, &vid_event_base,
<a name="l00850"></a>00850 &vid_error_base)
<a name="l00851"></a>00851 || !XF86VidModeQueryVersion(_xwin.display, &vid_major_version,
<a name="l00852"></a>00852 &vid_minor_version)) {
<a name="l00853"></a>00853
<a name="l00854"></a>00854 ustrzcpy (<a class="code" href="alleggl_8h.html#56226bbab6a0dfb87493cd5f94b80876">allegro_gl_error</a>, <a class="code" href="alleggl_8h.html#47dd926d0fa17257fd4870c8da949472">AGL_ERROR_SIZE</a>,
<a name="l00855"></a>00855 get_config_text(<span class="stringliteral">"VidMode extension is not supported"</span>));
<a name="l00856"></a>00856 <span class="keywordflow">return</span> -1;
<a name="l00857"></a>00857 }
<a name="l00858"></a>00858
<a name="l00859"></a>00859 <span class="keywordflow">if</span> (!XF86VidModeGetAllModeLines(_xwin.display, _xwin.screen, num_modes,
<a name="l00860"></a>00860 modesinfo)) {
<a name="l00861"></a>00861 ustrzcpy (<a class="code" href="alleggl_8h.html#56226bbab6a0dfb87493cd5f94b80876">allegro_gl_error</a>, <a class="code" href="alleggl_8h.html#47dd926d0fa17257fd4870c8da949472">AGL_ERROR_SIZE</a>,
<a name="l00862"></a>00862 get_config_text(<span class="stringliteral">"Can not Get ModeLines"</span>));
<a name="l00863"></a>00863 <span class="keywordflow">return</span> -1;
<a name="l00864"></a>00864 }
<a name="l00865"></a>00865
<a name="l00866"></a>00866 <span class="keywordflow">return</span> 0;
<a name="l00867"></a>00867 }
<a name="l00868"></a>00868 <span class="preprocessor">#endif</span>
<a name="l00869"></a>00869 <span class="preprocessor"></span>
<a name="l00870"></a>00870
<a name="l00871"></a>00871 <span class="keyword">static</span> <span class="keywordtype">int</span> allegro_gl_x_error_handler(Display *display, XErrorEvent *err_event)
<a name="l00872"></a>00872 {
<a name="l00873"></a>00873 <span class="keywordtype">char</span> buffer[256];
<a name="l00874"></a>00874
<a name="l00875"></a>00875 XGetErrorText(display, err_event->error_code, buffer, 256);
<a name="l00876"></a>00876 TRACE(<a class="code" href="aglf_8c.html#8c04b6ea901068c5cc4020e9a18c0cbe">PREFIX_E</a> <span class="stringliteral">"%s\n"</span>, buffer);
<a name="l00877"></a>00877 <span class="keywordflow">return</span> 0;
<a name="l00878"></a>00878 }
<a name="l00879"></a>00879
<a name="l00880"></a>00880
<a name="l00881"></a>00881 <span class="comment">/* create_window:</span>
<a name="l00882"></a>00882 <span class="comment"> * Based on Michael's `_xwin[_private]_create_window' and the xdemos</span>
<a name="l00883"></a>00883 <span class="comment"> * from the Mesa distribution (I don't remember which one).</span>
<a name="l00884"></a>00884 <span class="comment"> */</span>
<a name="l00885"></a>00885 <span class="keyword">static</span> <span class="keywordtype">int</span> allegro_gl_x_create_window (<span class="keywordtype">int</span> fullscreen)
<a name="l00886"></a>00886 {
<a name="l00887"></a>00887 Window root;
<a name="l00888"></a>00888 XVisualInfo *visinfo;
<a name="l00889"></a>00889 XSetWindowAttributes setattr;
<a name="l00890"></a>00890 <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> valuemask = CWBackPixel | CWBorderPixel | CWColormap
<a name="l00891"></a>00891 | CWEventMask;
<a name="l00892"></a>00892 XSizeHints *hints;
<a name="l00893"></a>00893 <span class="preprocessor">#ifdef ALLEGROGL_HAVE_XF86VIDMODE</span>
<a name="l00894"></a>00894 <span class="preprocessor"></span> <span class="keywordtype">int</span> bestmode=0;
<a name="l00895"></a>00895 <span class="preprocessor">#endif</span>
<a name="l00896"></a>00896 <span class="preprocessor"></span> GLXFBConfig fbconfig;
<a name="l00897"></a>00897 <span class="keywordtype">int</span> use_fbconfig;
<a name="l00898"></a>00898
<a name="l00899"></a>00899 <span class="keywordflow">if</span> (_xwin.display == 0) {
<a name="l00900"></a>00900 <span class="keywordflow">return</span> -1;
<a name="l00901"></a>00901 }
<a name="l00902"></a>00902
<a name="l00903"></a>00903 old_x_error_handler = XSetErrorHandler(allegro_gl_x_error_handler);
<a name="l00904"></a>00904
<a name="l00905"></a>00905 <span class="comment">/* Fill in missing color depth info */</span>
<a name="l00906"></a>00906 <a class="code" href="scorer_8c.html#8ab58906ab71d9e914540808ffc9089b">__allegro_gl_fill_in_info</a>();
<a name="l00907"></a>00907
<a name="l00908"></a>00908 <span class="preprocessor">#ifdef ALLEGROGL_HAVE_XF86VIDMODE</span>
<a name="l00909"></a>00909 <span class="preprocessor"></span> <span class="keywordflow">if</span> (fullscreen) {
<a name="l00910"></a>00910 <span class="keywordtype">int</span> i;
<a name="l00911"></a>00911 _xwin.num_modes = 0;
<a name="l00912"></a>00912 _xwin.modesinfo = NULL;
<a name="l00913"></a>00913 _glxwin.fullscreen = TRUE;
<a name="l00914"></a>00914
<a name="l00915"></a>00915 <span class="keywordflow">if</span> (get_xf86_modes(&_xwin.modesinfo, &_xwin.num_modes)) {
<a name="l00916"></a>00916 TRACE(<a class="code" href="aglf_8c.html#8c04b6ea901068c5cc4020e9a18c0cbe">PREFIX_E</a> <span class="stringliteral">"x_create_window: Can't get XF86VidMode info.\n"</span>);
<a name="l00917"></a>00917 XSetErrorHandler(old_x_error_handler);
<a name="l00918"></a>00918 <span class="keywordflow">return</span> -1;
<a name="l00919"></a>00919 }
<a name="l00920"></a>00920
<a name="l00921"></a>00921 <span class="comment">/* look for mode with requested resolution */</span>
<a name="l00922"></a>00922 <span class="keywordflow">for</span> (i = 0; i < _xwin.num_modes; i++)
<a name="l00923"></a>00923 {
<a name="l00924"></a>00924 <span class="keywordflow">if</span> ((_xwin.modesinfo[i]->hdisplay == <a class="code" href="structallegro__gl__display__info.html">allegro_gl_display_info</a>.w)
<a name="l00925"></a>00925 && (_xwin.modesinfo[i]->vdisplay == <a class="code" href="structallegro__gl__display__info.html">allegro_gl_display_info</a>.h))
<a name="l00926"></a>00926 bestmode = i;
<a name="l00927"></a>00927 }
<a name="l00928"></a>00928 }
<a name="l00929"></a>00929 <span class="preprocessor">#endif</span>
<a name="l00930"></a>00930 <span class="preprocessor"></span>
<a name="l00931"></a>00931 use_fbconfig = (_glxwin.major > 1 || (_glxwin.major == 1 && _glxwin.minor >= 3));
<a name="l00932"></a>00932
<a name="l00933"></a>00933 <span class="keywordflow">if</span> (use_fbconfig) {
<a name="l00934"></a>00934 TRACE(<a class="code" href="alleggl_8c.html#09462782acac95f9a6da67adf659ed6e">PREFIX_I</a> <span class="stringliteral">"x_create_window: using FBConfig routines\n"</span>);
<a name="l00935"></a>00935
<a name="l00936"></a>00936 <span class="keywordflow">if</span> (!allegro_gl_x_windowed_choose_fbconfig(&fbconfig)) {
<a name="l00937"></a>00937 TRACE(<a class="code" href="alleggl_8c.html#09462782acac95f9a6da67adf659ed6e">PREFIX_I</a> <span class="stringliteral">"x_create_window: Failed using FBConfig, switching "</span>
<a name="l00938"></a>00938 <span class="stringliteral">"back to VisualInfo routines\n"</span>);
<a name="l00939"></a>00939 use_fbconfig = FALSE;
<a name="l00940"></a>00940 <span class="keywordflow">goto</span> old_choose_visual;
<a name="l00941"></a>00941 }
<a name="l00942"></a>00942
<a name="l00943"></a>00943 <span class="comment">/* Query back FBConfig components */</span>
<a name="l00944"></a>00944 <span class="keywordflow">if</span> (decode_fbconfig(fbconfig, &<a class="code" href="structallegro__gl__display__info.html">allegro_gl_display_info</a>)) {
<a name="l00945"></a>00945 TRACE(<a class="code" href="aglf_8c.html#8c04b6ea901068c5cc4020e9a18c0cbe">PREFIX_E</a> <span class="stringliteral">"x_create_window: Cannot decode FBConfig, switching "</span>
<a name="l00946"></a>00946 <span class="stringliteral">"back to VisualInfo routines\n"</span>);
<a name="l00947"></a>00947 use_fbconfig = FALSE;
<a name="l00948"></a>00948 <span class="keywordflow">goto</span> old_choose_visual;
<a name="l00949"></a>00949 }
<a name="l00950"></a>00950
<a name="l00951"></a>00951 visinfo = glXGetVisualFromFBConfig(_xwin.display, fbconfig);
<a name="l00952"></a>00952 <span class="keywordflow">if</span> (!visinfo) {
<a name="l00953"></a>00953 TRACE(<a class="code" href="alleggl_8c.html#09462782acac95f9a6da67adf659ed6e">PREFIX_I</a> <span class="stringliteral">"x_create_window: Failed to convert FBConfig to "</span>
<a name="l00954"></a>00954 <span class="stringliteral">"visual, switching back to VisualInfo routines\n"</span>);
<a name="l00955"></a>00955 use_fbconfig = FALSE;
<a name="l00956"></a>00956 <span class="keywordflow">goto</span> old_choose_visual;
<a name="l00957"></a>00957 }
<a name="l00958"></a>00958 }
<a name="l00959"></a>00959 <span class="keywordflow">else</span> {
<a name="l00960"></a>00960 old_choose_visual:
<a name="l00961"></a>00961 TRACE(<a class="code" href="alleggl_8c.html#09462782acac95f9a6da67adf659ed6e">PREFIX_I</a> <span class="stringliteral">"x_create_window: using VisualInfo routines\n"</span>);
<a name="l00962"></a>00962
<a name="l00963"></a>00963 <span class="comment">/* Find best visual */</span>
<a name="l00964"></a>00964 visinfo = allegro_gl_x_windowed_choose_visual();
<a name="l00965"></a>00965 <span class="keywordflow">if</span> (!visinfo) {
<a name="l00966"></a>00966 TRACE(<a class="code" href="aglf_8c.html#8c04b6ea901068c5cc4020e9a18c0cbe">PREFIX_E</a> <span class="stringliteral">"x_create_window: Can not get visual.\n"</span>);
<a name="l00967"></a>00967 XSetErrorHandler(old_x_error_handler);
<a name="l00968"></a>00968 <span class="keywordflow">return</span> -1;
<a name="l00969"></a>00969 }
<a name="l00970"></a>00970
<a name="l00971"></a>00971 <span class="comment">/* Query back visual components */</span>
<a name="l00972"></a>00972 <span class="keywordflow">if</span> (decode_visual (visinfo, &<a class="code" href="structallegro__gl__display__info.html">allegro_gl_display_info</a>)) {
<a name="l00973"></a>00973 TRACE(<a class="code" href="aglf_8c.html#8c04b6ea901068c5cc4020e9a18c0cbe">PREFIX_E</a> <span class="stringliteral">"x_create_window: Can not decode visual.\n"</span>);
<a name="l00974"></a>00974 XSetErrorHandler(old_x_error_handler);
<a name="l00975"></a>00975 <span class="keywordflow">return</span> -1;
<a name="l00976"></a>00976 }
<a name="l00977"></a>00977 }
<a name="l00978"></a>00978
<a name="l00979"></a>00979 <span class="comment">/* Log some information about it */</span>
<a name="l00980"></a>00980 <span class="keywordflow">switch</span> (visinfo->class) {
<a name="l00981"></a>00981 <span class="keywordflow">case</span> TrueColor:
<a name="l00982"></a>00982 AGL_LOG (1, <span class="stringliteral">"x.c: visual class: TrueColor\n"</span>);
<a name="l00983"></a>00983 <span class="keywordflow">break</span>;
<a name="l00984"></a>00984 <span class="keywordflow">case</span> DirectColor:
<a name="l00985"></a>00985 AGL_LOG (1, <span class="stringliteral">"x.c: visual class: DirectColor\n"</span>);
<a name="l00986"></a>00986 <span class="keywordflow">break</span>;
<a name="l00987"></a>00987 <span class="keywordflow">default</span>:
<a name="l00988"></a>00988 AGL_LOG (1, <span class="stringliteral">"x.c: visual class: invalid(!)\n"</span>);
<a name="l00989"></a>00989 }
<a name="l00990"></a>00990
<a name="l00991"></a>00991 root = RootWindow (_xwin.display, _xwin.screen);
<a name="l00992"></a>00992
<a name="l00993"></a>00993 <span class="comment">/* Recreate window. */</span>
<a name="l00994"></a>00994 setattr.background_pixel = XBlackPixel (_xwin.display, _xwin.screen);
<a name="l00995"></a>00995 setattr.border_pixel = XBlackPixel (_xwin.display, _xwin.screen);
<a name="l00996"></a>00996 setattr.colormap = XCreateColormap (_xwin.display, root, visinfo->visual, AllocNone);
<a name="l00997"></a>00997 setattr.event_mask =
<a name="l00998"></a>00998 ( KeyPressMask | KeyReleaseMask
<a name="l00999"></a>00999 | EnterWindowMask | LeaveWindowMask
<a name="l01000"></a>01000 | FocusChangeMask | ExposureMask
<a name="l01001"></a>01001 | ButtonPressMask | ButtonReleaseMask | PointerMotionMask
<a name="l01002"></a>01002 <span class="comment">/*| MappingNotifyMask (SubstructureRedirectMask?)*/</span>
<a name="l01003"></a>01003 );
<a name="l01004"></a>01004
<a name="l01005"></a>01005 <span class="preprocessor">#ifdef ALLEGROGL_HAVE_XF86VIDMODE</span>
<a name="l01006"></a>01006 <span class="preprocessor"></span> <span class="keywordflow">if</span> (fullscreen) {
<a name="l01007"></a>01007 setattr.override_redirect = True;
<a name="l01008"></a>01008 <span class="keywordflow">if</span> (!XF86VidModeSwitchToMode(_xwin.display, _xwin.screen,
<a name="l01009"></a>01009 _xwin.modesinfo[bestmode])) {
<a name="l01010"></a>01010
<a name="l01011"></a>01011 ustrzcpy (<a class="code" href="alleggl_8h.html#56226bbab6a0dfb87493cd5f94b80876">allegro_gl_error</a>, <a class="code" href="alleggl_8h.html#47dd926d0fa17257fd4870c8da949472">AGL_ERROR_SIZE</a>,
<a name="l01012"></a>01012 get_config_text(<span class="stringliteral">"Can not set XF86VidMode mode"</span>));
<a name="l01013"></a>01013 XSetErrorHandler(old_x_error_handler);
<a name="l01014"></a>01014 <span class="keywordflow">return</span> -1;
<a name="l01015"></a>01015 }
<a name="l01016"></a>01016
<a name="l01017"></a>01017 XF86VidModeSetViewPort(_xwin.display, _xwin.screen, 0, 0);
<a name="l01018"></a>01018
<a name="l01019"></a>01019 <span class="comment">/* Lock Mode switching */</span>
<a name="l01020"></a>01020 XF86VidModeLockModeSwitch(_xwin.display, _xwin.screen, True);
<a name="l01021"></a>01021 _xwin.mode_switched = 1;
<a name="l01022"></a>01022
<a name="l01023"></a>01023 <a class="code" href="structallegro__gl__display__info.html">allegro_gl_display_info</a>.x = 0;
<a name="l01024"></a>01024 <a class="code" href="structallegro__gl__display__info.html">allegro_gl_display_info</a>.y = 0;
<a name="l01025"></a>01025 <a class="code" href="structallegro__gl__display__info.html">allegro_gl_display_info</a>.w = _xwin.modesinfo[bestmode]->hdisplay;
<a name="l01026"></a>01026 <a class="code" href="structallegro__gl__display__info.html">allegro_gl_display_info</a>.h = _xwin.modesinfo[bestmode]->vdisplay;
<a name="l01027"></a>01027
<a name="l01028"></a>01028 valuemask |= CWOverrideRedirect;
<a name="l01029"></a>01029 _xwin.override_redirected = 1;
<a name="l01030"></a>01030 }
<a name="l01031"></a>01031 <span class="preprocessor">#endif</span>
<a name="l01032"></a>01032 <span class="preprocessor"></span>
<a name="l01033"></a>01033 <span class="preprocessor">#if GET_ALLEGRO_VERSION() >= MAKE_VER(4, 2, 1)</span>
<a name="l01034"></a>01034 <span class="preprocessor"></span> <span class="comment">/* Hack: For Allegro 4.2.1, we need to keep the existing window. */</span>
<a name="l01035"></a>01035 <span class="keywordflow">if</span> (backup_allegro_window == None) {
<a name="l01036"></a>01036 backup_allegro_window = _xwin.window;
<a name="l01037"></a>01037 backup_allegro_colormap = _xwin.colormap;
<a name="l01038"></a>01038 _xwin.colormap = None;
<a name="l01039"></a>01039 XUnmapWindow(_xwin.display, _xwin.window);
<a name="l01040"></a>01040 }
<a name="l01041"></a>01041 <span class="keywordflow">else</span>
<a name="l01042"></a>01042 <span class="preprocessor">#endif</span>
<a name="l01043"></a>01043 <span class="preprocessor"></span> XDestroyWindow (_xwin.display, _xwin.window);
<a name="l01044"></a>01044
<a name="l01045"></a>01045 _xwin.window = XCreateWindow (
<a name="l01046"></a>01046 _xwin.display, root,
<a name="l01047"></a>01047 <a class="code" href="structallegro__gl__display__info.html">allegro_gl_display_info</a>.x, <a class="code" href="structallegro__gl__display__info.html">allegro_gl_display_info</a>.y,
<a name="l01048"></a>01048 <a class="code" href="structallegro__gl__display__info.html">allegro_gl_display_info</a>.w, <a class="code" href="structallegro__gl__display__info.html">allegro_gl_display_info</a>.h, 0,
<a name="l01049"></a>01049 visinfo->depth,
<a name="l01050"></a>01050 InputOutput,
<a name="l01051"></a>01051 visinfo->visual,
<a name="l01052"></a>01052 valuemask, &setattr
<a name="l01053"></a>01053 );
<a name="l01054"></a>01054
<a name="l01055"></a>01055 <span class="comment">/* Set size and position hints for Window Manager :</span>
<a name="l01056"></a>01056 <span class="comment"> * prevents the window to be resized</span>
<a name="l01057"></a>01057 <span class="comment"> */</span>
<a name="l01058"></a>01058 hints = XAllocSizeHints();
<a name="l01059"></a>01059 <span class="keywordflow">if</span> (hints) {
<a name="l01060"></a>01060 <span class="comment">/* This code chunk comes from Allegro's src/x/xwin.c */</span>
<a name="l01061"></a>01061 hints->flags = PMinSize | PMaxSize | PBaseSize;
<a name="l01062"></a>01062 hints->min_width = hints->max_width = hints->base_width
<a name="l01063"></a>01063 = <a class="code" href="structallegro__gl__display__info.html">allegro_gl_display_info</a>.w;
<a name="l01064"></a>01064 hints->min_height = hints->max_height = hints->base_height
<a name="l01065"></a>01065 = <a class="code" href="structallegro__gl__display__info.html">allegro_gl_display_info</a>.h;
<a name="l01066"></a>01066
<a name="l01067"></a>01067 XSetWMNormalHints(_xwin.display, _xwin.window, hints);
<a name="l01068"></a>01068 XFree(hints);
<a name="l01069"></a>01069 }
<a name="l01070"></a>01070
<a name="l01071"></a>01071
<a name="l01072"></a>01072 <span class="comment">/* Set WM_DELETE_WINDOW atom in WM_PROTOCOLS property</span>
<a name="l01073"></a>01073 <span class="comment"> * (to get window_delete requests).</span>
<a name="l01074"></a>01074 <span class="comment"> */</span>
<a name="l01075"></a>01075 Atom wm_delete_window = XInternAtom(_xwin.display, <span class="stringliteral">"WM_DELETE_WINDOW"</span>,
<a name="l01076"></a>01076 False);
<a name="l01077"></a>01077 XSetWMProtocols(_xwin.display, _xwin.window, &wm_delete_window, 1);
<a name="l01078"></a>01078
<a name="l01079"></a>01079 <span class="comment">/* Finish off the GLX setup */</span>
<a name="l01080"></a>01080 <span class="keywordflow">if</span> (use_fbconfig)
<a name="l01081"></a>01081 _glxwin.ctx = glXCreateNewContext (_xwin.display, fbconfig, GLX_RGBA_TYPE, NULL, True);
<a name="l01082"></a>01082 <span class="keywordflow">else</span>
<a name="l01083"></a>01083 _glxwin.ctx = glXCreateContext (_xwin.display, visinfo, NULL, True);
<a name="l01084"></a>01084
<a name="l01085"></a>01085 <span class="keywordflow">if</span> (use_fbconfig) {
<a name="l01086"></a>01086 _glxwin.window = glXCreateWindow(_xwin.display, fbconfig, _xwin.window, 0);
<a name="l01087"></a>01087 <span class="keywordflow">if</span> (!_glxwin.window) {
<a name="l01088"></a>01088 ustrzcpy (<a class="code" href="alleggl_8h.html#56226bbab6a0dfb87493cd5f94b80876">allegro_gl_error</a>, <a class="code" href="alleggl_8h.html#47dd926d0fa17257fd4870c8da949472">AGL_ERROR_SIZE</a>,
<a name="l01089"></a>01089 get_config_text(<span class="stringliteral">"Cannot create GLX window."</span>));
<a name="l01090"></a>01090 XSetErrorHandler(old_x_error_handler);
<a name="l01091"></a>01091 <span class="keywordflow">return</span> -1;
<a name="l01092"></a>01092 }
<a name="l01093"></a>01093 _glxwin.use_glx_window = TRUE;
<a name="l01094"></a>01094 }
<a name="l01095"></a>01095
<a name="l01096"></a>01096 <span class="keywordflow">if</span> (!_glxwin.ctx) {
<a name="l01097"></a>01097 ustrzcpy (<a class="code" href="alleggl_8h.html#56226bbab6a0dfb87493cd5f94b80876">allegro_gl_error</a>, <a class="code" href="alleggl_8h.html#47dd926d0fa17257fd4870c8da949472">AGL_ERROR_SIZE</a>,
<a name="l01098"></a>01098 get_config_text(<span class="stringliteral">"Can not create GLX context."</span>));
<a name="l01099"></a>01099 XSetErrorHandler(old_x_error_handler);
<a name="l01100"></a>01100 <span class="keywordflow">return</span> -1;
<a name="l01101"></a>01101 }
<a name="l01102"></a>01102 <span class="keywordflow">else</span> {
<a name="l01103"></a>01103 Bool ret;
<a name="l01104"></a>01104
<a name="l01105"></a>01105 <span class="keywordflow">if</span> (use_fbconfig)
<a name="l01106"></a>01106 ret = glXMakeContextCurrent(_xwin.display, _glxwin.window, _glxwin.window, _glxwin.ctx);
<a name="l01107"></a>01107 <span class="keywordflow">else</span>
<a name="l01108"></a>01108 ret = glXMakeCurrent (_xwin.display, _xwin.window, _glxwin.ctx);
<a name="l01109"></a>01109
<a name="l01110"></a>01110 <span class="keywordflow">if</span> (!ret) {
<a name="l01111"></a>01111 ustrzcpy (<a class="code" href="alleggl_8h.html#56226bbab6a0dfb87493cd5f94b80876">allegro_gl_error</a>, <a class="code" href="alleggl_8h.html#47dd926d0fa17257fd4870c8da949472">AGL_ERROR_SIZE</a>,
<a name="l01112"></a>01112 get_config_text(<span class="stringliteral">"Cannot make GLX context current."</span>));
<a name="l01113"></a>01113 XSetErrorHandler(old_x_error_handler);
<a name="l01114"></a>01114 <span class="keywordflow">return</span> -1;
<a name="l01115"></a>01115 }
<a name="l01116"></a>01116 }
<a name="l01117"></a>01117
<a name="l01118"></a>01118 <span class="comment">/* Finish off the Allegro setup */</span>
<a name="l01119"></a>01119
<a name="l01120"></a>01120 <span class="comment">/* Get associated visual and window depth (bits per pixel), and</span>
<a name="l01121"></a>01121 <span class="comment"> * store window size */</span>
<a name="l01122"></a>01122 {
<a name="l01123"></a>01123 XWindowAttributes getattr;
<a name="l01124"></a>01124 XGetWindowAttributes(_xwin.display, _xwin.window, &getattr);
<a name="l01125"></a>01125 _xwin.visual = getattr.visual;
<a name="l01126"></a>01126 _xwin.window_depth = getattr.depth;
<a name="l01127"></a>01127 _xwin.window_width = <a class="code" href="structallegro__gl__display__info.html">allegro_gl_display_info</a>.w;
<a name="l01128"></a>01128 _xwin.window_height = <a class="code" href="structallegro__gl__display__info.html">allegro_gl_display_info</a>.h;
<a name="l01129"></a>01129 _xwin.screen_depth = getattr.depth;
<a name="l01130"></a>01130 _xwin.screen_width = <a class="code" href="structallegro__gl__display__info.html">allegro_gl_display_info</a>.w;
<a name="l01131"></a>01131 _xwin.screen_height = <a class="code" href="structallegro__gl__display__info.html">allegro_gl_display_info</a>.h;
<a name="l01132"></a>01132 }
<a name="l01133"></a>01133
<a name="l01134"></a>01134 <span class="comment">/* Destroy the current colormap (if any) */</span>
<a name="l01135"></a>01135 <span class="keywordflow">if</span> (_xwin.colormap != None) {
<a name="l01136"></a>01136 XUninstallColormap(_xwin.display, _xwin.colormap);
<a name="l01137"></a>01137 XFreeColormap(_xwin.display, _xwin.colormap);
<a name="l01138"></a>01138 }
<a name="l01139"></a>01139
<a name="l01140"></a>01140 <span class="comment">/* Create and install colormap. */</span>
<a name="l01141"></a>01141 <span class="keywordflow">if</span> (_xwin.visual->class == DirectColor) {
<a name="l01142"></a>01142 _xwin.colormap = XCreateColormap(_xwin.display, _xwin.window,
<a name="l01143"></a>01143 _xwin.visual, AllocAll);
<a name="l01144"></a>01144 }
<a name="l01145"></a>01145 <span class="keywordflow">else</span> { <span class="comment">/* must be TrueColor */</span>
<a name="l01146"></a>01146 _xwin.colormap = XCreateColormap(_xwin.display, _xwin.window,
<a name="l01147"></a>01147 _xwin.visual, AllocNone);
<a name="l01148"></a>01148 }
<a name="l01149"></a>01149 XSetWindowColormap(_xwin.display, _xwin.window, _xwin.colormap);
<a name="l01150"></a>01150 XInstallColormap(_xwin.display, _xwin.colormap);
<a name="l01151"></a>01151
<a name="l01152"></a>01152 <span class="comment">/* Setup a palette if needed */</span>
<a name="l01153"></a>01153 <span class="keywordflow">if</span> (_xwin.visual->class == DirectColor) {
<a name="l01154"></a>01154 XColor color;
<a name="l01155"></a>01155 <span class="keywordtype">int</span> rsize, gsize, bsize;
<a name="l01156"></a>01156 <span class="keywordtype">int</span> rmax, gmax, bmax;
<a name="l01157"></a>01157 <span class="keywordtype">int</span> rshift, gshift, bshift;
<a name="l01158"></a>01158 <span class="keywordtype">int</span> r, g, b;
<a name="l01159"></a>01159
<a name="l01160"></a>01160 AGL_LOG (1, <span class="stringliteral">"x.c: Using DirectColor visual, setting palette...\n"</span>);
<a name="l01161"></a>01161
<a name="l01162"></a>01162 rsize = 1 << <a class="code" href="structallegro__gl__display__info.html">allegro_gl_display_info</a>.pixel_size.rgba.r;
<a name="l01163"></a>01163 gsize = 1 << <a class="code" href="structallegro__gl__display__info.html">allegro_gl_display_info</a>.pixel_size.rgba.g;
<a name="l01164"></a>01164 bsize = 1 << <a class="code" href="structallegro__gl__display__info.html">allegro_gl_display_info</a>.pixel_size.rgba.b;
<a name="l01165"></a>01165
<a name="l01166"></a>01166 rshift = <a class="code" href="structallegro__gl__display__info.html">allegro_gl_display_info</a>.r_shift;
<a name="l01167"></a>01167 bshift = <a class="code" href="structallegro__gl__display__info.html">allegro_gl_display_info</a>.b_shift;
<a name="l01168"></a>01168 gshift = <a class="code" href="structallegro__gl__display__info.html">allegro_gl_display_info</a>.g_shift;
<a name="l01169"></a>01169
<a name="l01170"></a>01170 rmax = rsize - 1;
<a name="l01171"></a>01171 gmax = gsize - 1;
<a name="l01172"></a>01172 bmax = bsize - 1;
<a name="l01173"></a>01173
<a name="l01174"></a>01174 color.flags = DoRed | DoGreen | DoBlue;
<a name="l01175"></a>01175 <span class="keywordflow">for</span> (r = 0; r < rsize; r++) {
<a name="l01176"></a>01176 <span class="keywordflow">for</span> (g = 0; g < gsize; g++) {
<a name="l01177"></a>01177 <span class="keywordflow">for</span> (b = 0; b < bsize; b++) {
<a name="l01178"></a>01178 color.pixel = (r << rshift) | (g << gshift) | (b << bshift);
<a name="l01179"></a>01179 color.red = ((rmax <= 0) ? 0 : ((r * 65535L) / rmax));
<a name="l01180"></a>01180 color.green = ((gmax <= 0) ? 0 : ((g * 65535L) / gmax));
<a name="l01181"></a>01181 color.blue = ((bmax <= 0) ? 0 : ((b * 65535L) / bmax));
<a name="l01182"></a>01182 XStoreColor(_xwin.display, _xwin.colormap, &color);
<a name="l01183"></a>01183 }
<a name="l01184"></a>01184 }
<a name="l01185"></a>01185 }
<a name="l01186"></a>01186 }
<a name="l01187"></a>01187
<a name="l01188"></a>01188 <span class="comment">/* Configure the window a bit */</span>
<a name="l01189"></a>01189 {
<a name="l01190"></a>01190 XClassHint hint;
<a name="l01191"></a>01191 XWMHints wm_hints;
<a name="l01192"></a>01192
<a name="l01193"></a>01193 <span class="comment">/* Set title. */</span>
<a name="l01194"></a>01194 XStoreName(_xwin.display, _xwin.window, _xwin.window_title);
<a name="l01195"></a>01195
<a name="l01196"></a>01196 <span class="comment">/* Set hints. */</span>
<a name="l01197"></a>01197 hint.res_name = _xwin.application_name;
<a name="l01198"></a>01198 hint.res_class = _xwin.application_class;
<a name="l01199"></a>01199 XSetClassHint(_xwin.display, _xwin.window, &hint);
<a name="l01200"></a>01200
<a name="l01201"></a>01201 wm_hints.flags = InputHint | StateHint;
<a name="l01202"></a>01202 wm_hints.input = True;
<a name="l01203"></a>01203 wm_hints.initial_state = NormalState;
<a name="l01204"></a>01204
<a name="l01205"></a>01205 <span class="preprocessor">#ifdef ALLEGRO_XWINDOWS_WITH_XPM</span>
<a name="l01206"></a>01206 <span class="preprocessor"></span> <span class="keywordflow">if</span> (allegro_icon) {
<a name="l01207"></a>01207 wm_hints.flags |= IconPixmapHint | IconMaskHint | WindowGroupHint;
<a name="l01208"></a>01208 XpmCreatePixmapFromData(_xwin.display, _xwin.window, allegro_icon,&wm_hints.icon_pixmap, &wm_hints.icon_mask, NULL);
<a name="l01209"></a>01209 }
<a name="l01210"></a>01210 <span class="preprocessor">#endif</span>
<a name="l01211"></a>01211 <span class="preprocessor"></span>
<a name="l01212"></a>01212 XSetWMHints(_xwin.display, _xwin.window, &wm_hints);
<a name="l01213"></a>01213 }
<a name="l01214"></a>01214
<a name="l01215"></a>01215 <span class="comment">/* Map window. */</span>
<a name="l01216"></a>01216 XMapWindow(_xwin.display, _xwin.window);
<a name="l01217"></a>01217
<a name="l01218"></a>01218
<a name="l01219"></a>01219 <span class="preprocessor">#ifdef ALLEGROGL_HAVE_XF86VIDMODE</span>
<a name="l01220"></a>01220 <span class="preprocessor"></span> <span class="keywordflow">if</span> (fullscreen) {
<a name="l01221"></a>01221 AL_CONST <span class="keywordtype">char</span> *fc = NULL;
<a name="l01222"></a>01222 <span class="keywordtype">char</span> tmp1[64], tmp2[128];
<a name="l01223"></a>01223 <span class="keywordtype">int</span> c = 0;
<a name="l01224"></a>01224 <span class="keywordtype">int</span> h = <a class="code" href="structallegro__gl__display__info.html">allegro_gl_display_info</a>.h;
<a name="l01225"></a>01225 <span class="keywordtype">int</span> w = <a class="code" href="structallegro__gl__display__info.html">allegro_gl_display_info</a>.w;
<a name="l01226"></a>01226
<a name="l01227"></a>01227 <span class="comment">/* This chunk is disabled by default because of problems on KDE</span>
<a name="l01228"></a>01228 <span class="comment"> desktops. */</span>
<a name="l01229"></a>01229 fc = get_config_string(uconvert_ascii(<span class="stringliteral">"graphics"</span>, tmp1),
<a name="l01230"></a>01230 uconvert_ascii(<span class="stringliteral">"force_centering"</span>, tmp2), NULL);
<a name="l01231"></a>01231 <span class="keywordflow">if</span> ((fc) && ((c = ugetc(fc)) != 0) && ((c == <span class="charliteral">'y'</span>) || (c == <span class="charliteral">'Y'</span>)
<a name="l01232"></a>01232 || (c == <span class="charliteral">'1'</span>))) {
<a name="l01233"></a>01233 <span class="comment">/* Hack: make the window fully visible and center cursor. */</span>
<a name="l01234"></a>01234 XWarpPointer(_xwin.display, None, _xwin.window, 0, 0, 0, 0, 0, 0);
<a name="l01235"></a>01235 XWarpPointer(_xwin.display, None, _xwin.window, 0, 0, 0, 0,
<a name="l01236"></a>01236 w - 1, 0);
<a name="l01237"></a>01237 XWarpPointer(_xwin.display, None, _xwin.window, 0, 0, 0, 0,
<a name="l01238"></a>01238 0, h - 1);
<a name="l01239"></a>01239 XWarpPointer(_xwin.display, None, _xwin.window, 0, 0, 0, 0,
<a name="l01240"></a>01240 w - 1, h - 1);
<a name="l01241"></a>01241 }
<a name="l01242"></a>01242 XWarpPointer(_xwin.display, None, _xwin.window, 0, 0, 0, 0,
<a name="l01243"></a>01243 w / 2, h / 2);
<a name="l01244"></a>01244 XSync(_xwin.display, False);
<a name="l01245"></a>01245
<a name="l01246"></a>01246 <span class="comment">/* Grab keyboard and mouse. */</span>
<a name="l01247"></a>01247 <span class="keywordflow">if</span> (XGrabKeyboard(_xwin.display, _xwin.window, False, GrabModeAsync,
<a name="l01248"></a>01248 GrabModeAsync, CurrentTime) != GrabSuccess) {
<a name="l01249"></a>01249 ustrzcpy (<a class="code" href="alleggl_8h.html#56226bbab6a0dfb87493cd5f94b80876">allegro_gl_error</a>, <a class="code" href="alleggl_8h.html#47dd926d0fa17257fd4870c8da949472">AGL_ERROR_SIZE</a>,
<a name="l01250"></a>01250 get_config_text(<span class="stringliteral">"Can not grab keyboard"</span>));
<a name="l01251"></a>01251 XSetErrorHandler(old_x_error_handler);
<a name="l01252"></a>01252 <span class="keywordflow">return</span> -1;
<a name="l01253"></a>01253 }
<a name="l01254"></a>01254 _xwin.keyboard_grabbed = 1;
<a name="l01255"></a>01255
<a name="l01256"></a>01256 <span class="keywordflow">if</span> (XGrabPointer(_xwin.display, _xwin.window, False,
<a name="l01257"></a>01257 PointerMotionMask | ButtonPressMask | ButtonReleaseMask,
<a name="l01258"></a>01258 GrabModeAsync, GrabModeAsync, _xwin.window, None, CurrentTime)
<a name="l01259"></a>01259 != GrabSuccess) {
<a name="l01260"></a>01260
<a name="l01261"></a>01261 ustrzcpy (<a class="code" href="alleggl_8h.html#56226bbab6a0dfb87493cd5f94b80876">allegro_gl_error</a>, <a class="code" href="alleggl_8h.html#47dd926d0fa17257fd4870c8da949472">AGL_ERROR_SIZE</a>,
<a name="l01262"></a>01262 get_config_text(<span class="stringliteral">"Can not grab mouse"</span>));
<a name="l01263"></a>01263 XSetErrorHandler(old_x_error_handler);
<a name="l01264"></a>01264 <span class="keywordflow">return</span> -1;
<a name="l01265"></a>01265 }
<a name="l01266"></a>01266 _xwin.mouse_grabbed = 1;
<a name="l01267"></a>01267 }
<a name="l01268"></a>01268 <span class="preprocessor">#endif</span>
<a name="l01269"></a>01269 <span class="preprocessor"></span>
<a name="l01270"></a>01270
<a name="l01271"></a>01271 <span class="comment">/* Destroy current cursor (if any) */</span>
<a name="l01272"></a>01272 <span class="keywordflow">if</span> (_xwin.cursor != None) {
<a name="l01273"></a>01273 XUndefineCursor(_xwin.display, _xwin.window);
<a name="l01274"></a>01274 XFreeCursor(_xwin.display, _xwin.cursor);
<a name="l01275"></a>01275 }
<a name="l01276"></a>01276
<a name="l01277"></a>01277 {
<a name="l01278"></a>01278 <span class="comment">/* Create invisible X cursor. */</span>
<a name="l01279"></a>01279 Pixmap pixmap = XCreatePixmap(_xwin.display, _xwin.window, 1, 1, 1);
<a name="l01280"></a>01280 <span class="keywordflow">if</span> (pixmap != None) {
<a name="l01281"></a>01281 GC temp_gc;
<a name="l01282"></a>01282 XColor color;
<a name="l01283"></a>01283 XGCValues gcvalues;
<a name="l01284"></a>01284
<a name="l01285"></a>01285 <span class="keywordtype">int</span> gcmask = GCFunction | GCForeground | GCBackground;
<a name="l01286"></a>01286 gcvalues.function = GXcopy;
<a name="l01287"></a>01287 gcvalues.foreground = 0;
<a name="l01288"></a>01288 gcvalues.background = 0;
<a name="l01289"></a>01289 temp_gc = XCreateGC(_xwin.display, pixmap, gcmask, &gcvalues);
<a name="l01290"></a>01290 XDrawPoint(_xwin.display, pixmap, temp_gc, 0, 0);
<a name="l01291"></a>01291 XFreeGC(_xwin.display, temp_gc);
<a name="l01292"></a>01292 color.pixel = 0;
<a name="l01293"></a>01293 color.red = color.green = color.blue = 0;
<a name="l01294"></a>01294 color.flags = DoRed | DoGreen | DoBlue;
<a name="l01295"></a>01295 _xwin.cursor = XCreatePixmapCursor(_xwin.display, pixmap, pixmap,
<a name="l01296"></a>01296 &color, &color, 0, 0);
<a name="l01297"></a>01297 XDefineCursor(_xwin.display, _xwin.window, _xwin.cursor);
<a name="l01298"></a>01298 XFreePixmap(_xwin.display, pixmap);
<a name="l01299"></a>01299 }
<a name="l01300"></a>01300 <span class="keywordflow">else</span> {
<a name="l01301"></a>01301 _xwin.cursor = XCreateFontCursor(_xwin.display, _xwin.cursor_shape);
<a name="l01302"></a>01302 XDefineCursor(_xwin.display, _xwin.window, _xwin.cursor);
<a name="l01303"></a>01303 }
<a name="l01304"></a>01304 }
<a name="l01305"></a>01305
<a name="l01306"></a>01306 <span class="comment">/* Wait for the first exposure event. */</span>
<a name="l01307"></a>01307 {
<a name="l01308"></a>01308 XEvent event;
<a name="l01309"></a>01309 <span class="keywordflow">do</span> {
<a name="l01310"></a>01310 XNextEvent(_xwin.display, &event);
<a name="l01311"></a>01311 } <span class="keywordflow">while</span> ((event.type != Expose) || (event.xexpose.count != 0));
<a name="l01312"></a>01312 }
<a name="l01313"></a>01313
<a name="l01314"></a>01314 <span class="keywordflow">return</span> 0;
<a name="l01315"></a>01315 }
<a name="l01316"></a>01316
<a name="l01317"></a>01317
<a name="l01318"></a>01318
<a name="l01319"></a>01319 <span class="keyword">static</span> BITMAP *allegro_gl_x_windowed_create_screen (GFX_DRIVER *drv, <span class="keywordtype">int</span> w, <span class="keywordtype">int</span> h, <span class="keywordtype">int</span> depth)
<a name="l01320"></a>01320 {
<a name="l01321"></a>01321 BITMAP *bmp;
<a name="l01322"></a>01322 <span class="keywordtype">int</span> is_linear = drv->linear;
<a name="l01323"></a>01323
<a name="l01324"></a>01324 drv->linear = 1;
<a name="l01325"></a>01325 bmp = _make_bitmap (w, h, 0, drv, depth, 0);
<a name="l01326"></a>01326 bmp->id = BMP_ID_VIDEO | BMP_ID_MASK;
<a name="l01327"></a>01327 drv->linear = is_linear;
<a name="l01328"></a>01328
<a name="l01329"></a>01329 <span class="keywordflow">if</span> (bmp == 0) {
<a name="l01330"></a>01330 ustrzcpy (<a class="code" href="alleggl_8h.html#56226bbab6a0dfb87493cd5f94b80876">allegro_gl_error</a>, <a class="code" href="alleggl_8h.html#47dd926d0fa17257fd4870c8da949472">AGL_ERROR_SIZE</a>,
<a name="l01331"></a>01331 get_config_text(<span class="stringliteral">"Not enough memory"</span>));
<a name="l01332"></a>01332 <span class="keywordflow">return</span> NULL;
<a name="l01333"></a>01333 }
<a name="l01334"></a>01334
<a name="l01335"></a>01335 drv->w = w;
<a name="l01336"></a>01336 drv->h = h;
<a name="l01337"></a>01337
<a name="l01338"></a>01338 <span class="keywordflow">return</span> bmp;
<a name="l01339"></a>01339 }
<a name="l01340"></a>01340
<a name="l01341"></a>01341
<a name="l01342"></a>01342
<a name="l01343"></a>01343 <span class="comment">/* decode_visual:</span>
<a name="l01344"></a>01344 <span class="comment"> * Used to read back the information in the visual. 0 = ok.</span>
<a name="l01345"></a>01345 <span class="comment"> */</span>
<a name="l01346"></a>01346 <span class="keyword">static</span> <span class="keywordtype">int</span> decode_visual (XVisualInfo *v, <span class="keyword">struct</span> <a class="code" href="structallegro__gl__display__info.html">allegro_gl_display_info</a> *i)
<a name="l01347"></a>01347 {
<a name="l01348"></a>01348 <span class="keywordtype">int</span> rgba, buffer_size, use_gl, sbuffers, samples;
<a name="l01349"></a>01349
<a name="l01350"></a>01350 TRACE(<a class="code" href="alleggl_8c.html#09462782acac95f9a6da67adf659ed6e">PREFIX_I</a> <span class="stringliteral">"decode_visual: Decoding:\n"</span>);
<a name="l01351"></a>01351 i-><a class="code" href="structallegro__gl__display__info.html#279d45652a733a6c94846859f1aa0c0b">rmethod</a> = 2;
<a name="l01352"></a>01352
<a name="l01353"></a>01353 <span class="comment">/* We can only support TrueColor and DirectColor visuals --</span>
<a name="l01354"></a>01354 <span class="comment"> * we only support RGBA mode */</span>
<a name="l01355"></a>01355 <span class="keywordflow">if</span> (v->class != TrueColor && v->class != DirectColor)
<a name="l01356"></a>01356 <span class="keywordflow">return</span> -1;
<a name="l01357"></a>01357
<a name="l01358"></a>01358 <span class="keywordflow">if</span> (glXGetConfig (_xwin.display, v, GLX_RGBA, &rgba)
<a name="l01359"></a>01359 || glXGetConfig (_xwin.display, v, GLX_USE_GL, &use_gl)
<a name="l01360"></a>01360 || glXGetConfig (_xwin.display, v, GLX_BUFFER_SIZE, &buffer_size)
<a name="l01361"></a>01361 || glXGetConfig (_xwin.display, v, GLX_RED_SIZE, &i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#f9de518467fa0b1532e8eba66538be09">r</a>)
<a name="l01362"></a>01362 || glXGetConfig (_xwin.display, v, GLX_GREEN_SIZE, &i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#b3eb1168ad9bc3d02b523b032f856b6c">g</a>)
<a name="l01363"></a>01363 || glXGetConfig (_xwin.display, v, GLX_BLUE_SIZE, &i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#cd92a14a0bbb205a634295e18f00bd87">b</a>)
<a name="l01364"></a>01364 || glXGetConfig (_xwin.display, v, GLX_ALPHA_SIZE, &i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#87c70ef6046f7b5649c66590c102e0c4">a</a>)
<a name="l01365"></a>01365 || glXGetConfig (_xwin.display, v, GLX_DOUBLEBUFFER, &i-><a class="code" href="structallegro__gl__display__info.html#620e7a0c77ce365b470b1bf629960989">doublebuffered</a>)
<a name="l01366"></a>01366 || glXGetConfig (_xwin.display, v, GLX_STEREO, &i-><a class="code" href="structallegro__gl__display__info.html#5c5e59ff093bcfe869460636eda46f01">stereo</a>)
<a name="l01367"></a>01367 || glXGetConfig (_xwin.display, v, GLX_AUX_BUFFERS, &i-><a class="code" href="structallegro__gl__display__info.html#b0a89d6d93a3c8e565bfcfef23ae8fb8">aux_buffers</a>)
<a name="l01368"></a>01368 || glXGetConfig (_xwin.display, v, GLX_DEPTH_SIZE, &i-><a class="code" href="structallegro__gl__display__info.html#0b5eaf55c97e5be1bec507ca8d1c45c7">depth_size</a>)
<a name="l01369"></a>01369 || glXGetConfig (_xwin.display, v, GLX_STENCIL_SIZE, &i-><a class="code" href="structallegro__gl__display__info.html#fefde83b0454134e9980524577022f50">stencil_size</a>)
<a name="l01370"></a>01370 || glXGetConfig (_xwin.display, v, GLX_ACCUM_RED_SIZE,
<a name="l01371"></a>01371 &i-><a class="code" href="structallegro__gl__display__info.html#7f87a49c909fc0d69eb8b0729ec3afc6">accum_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#f9de518467fa0b1532e8eba66538be09">r</a>)
<a name="l01372"></a>01372 || glXGetConfig (_xwin.display, v, GLX_ACCUM_GREEN_SIZE,
<a name="l01373"></a>01373 &i-><a class="code" href="structallegro__gl__display__info.html#7f87a49c909fc0d69eb8b0729ec3afc6">accum_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#b3eb1168ad9bc3d02b523b032f856b6c">g</a>)
<a name="l01374"></a>01374 || glXGetConfig (_xwin.display, v, GLX_ACCUM_BLUE_SIZE,
<a name="l01375"></a>01375 &i-><a class="code" href="structallegro__gl__display__info.html#7f87a49c909fc0d69eb8b0729ec3afc6">accum_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#cd92a14a0bbb205a634295e18f00bd87">b</a>)
<a name="l01376"></a>01376 || glXGetConfig (_xwin.display, v, GLX_ACCUM_ALPHA_SIZE,
<a name="l01377"></a>01377 &i-><a class="code" href="structallegro__gl__display__info.html#7f87a49c909fc0d69eb8b0729ec3afc6">accum_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#87c70ef6046f7b5649c66590c102e0c4">a</a>)) {
<a name="l01378"></a>01378 TRACE(<a class="code" href="alleggl_8c.html#09462782acac95f9a6da67adf659ed6e">PREFIX_I</a> <span class="stringliteral">"x_create_window: Incomplete glX mode ...\n"</span>);
<a name="l01379"></a>01379 <span class="keywordflow">return</span> -1;
<a name="l01380"></a>01380 }
<a name="l01381"></a>01381
<a name="l01382"></a>01382 <span class="keywordflow">if</span> (!rgba) {
<a name="l01383"></a>01383 TRACE(<a class="code" href="alleggl_8c.html#09462782acac95f9a6da67adf659ed6e">PREFIX_I</a> <span class="stringliteral">"x_create_window: Not RGBA mode\n"</span>);
<a name="l01384"></a>01384 <span class="keywordflow">return</span> -1;
<a name="l01385"></a>01385 }
<a name="l01386"></a>01386
<a name="l01387"></a>01387 <span class="keywordflow">if</span> (!use_gl) {
<a name="l01388"></a>01388 ustrzcpy (<a class="code" href="alleggl_8h.html#56226bbab6a0dfb87493cd5f94b80876">allegro_gl_error</a>, <a class="code" href="alleggl_8h.html#47dd926d0fa17257fd4870c8da949472">AGL_ERROR_SIZE</a>,
<a name="l01389"></a>01389 get_config_text(<span class="stringliteral">"OpenGL Unsupported"</span>));
<a name="l01390"></a>01390 <span class="keywordflow">return</span> -1;
<a name="l01391"></a>01391 }
<a name="l01392"></a>01392
<a name="l01393"></a>01393 i-><a class="code" href="structallegro__gl__display__info.html#29ac4703ce51b7b70326eb374186ad32">r_shift</a> = get_shift (v->red_mask);
<a name="l01394"></a>01394 i-><a class="code" href="structallegro__gl__display__info.html#14d5a551c67db5c5083ffa310ff6bd00">g_shift</a> = get_shift (v->green_mask);
<a name="l01395"></a>01395 i-><a class="code" href="structallegro__gl__display__info.html#7b626c8827c8198deaf26071fd46833e">b_shift</a> = get_shift (v->blue_mask);
<a name="l01396"></a>01396 i-><a class="code" href="structallegro__gl__display__info.html#8350647b4bbeaf745bb055bf923065f7">a_shift</a> = 0;
<a name="l01397"></a>01397
<a name="l01398"></a>01398 <span class="comment">/* If we are going to need to setup a palette we need bit shifts */</span>
<a name="l01399"></a>01399 <span class="keywordflow">if</span> ((v->class == DirectColor)
<a name="l01400"></a>01400 && ((i-><a class="code" href="structallegro__gl__display__info.html#29ac4703ce51b7b70326eb374186ad32">r_shift</a> == -1) || (i-><a class="code" href="structallegro__gl__display__info.html#14d5a551c67db5c5083ffa310ff6bd00">g_shift</a> == -1) || (i-><a class="code" href="structallegro__gl__display__info.html#7b626c8827c8198deaf26071fd46833e">b_shift</a> == -1))
<a name="l01401"></a>01401 && (i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#f9de518467fa0b1532e8eba66538be09">r</a> + i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#b3eb1168ad9bc3d02b523b032f856b6c">g</a> + i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#cd92a14a0bbb205a634295e18f00bd87">b</a>
<a name="l01402"></a>01402 <= 12)) {
<a name="l01403"></a>01403 <span class="comment">/* XXX <rohannessian> Report something here? */</span>
<a name="l01404"></a>01404 <span class="keywordflow">return</span> -1;
<a name="l01405"></a>01405 }
<a name="l01406"></a>01406
<a name="l01407"></a>01407 i-><a class="code" href="structallegro__gl__display__info.html#c2a75c18dd42e5ee730eb42d862aed40">float_color</a> = 0;
<a name="l01408"></a>01408 i-><a class="code" href="structallegro__gl__display__info.html#44a555fa41bcd28266350078125a8a91">float_depth</a> = 0;
<a name="l01409"></a>01409
<a name="l01410"></a>01410 i-><a class="code" href="structallegro__gl__display__info.html#736c31eafe099ac504e844b8fb3ab963">colour_depth</a> = 0;
<a name="l01411"></a>01411
<a name="l01412"></a>01412 <span class="keywordflow">if</span> (i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#f9de518467fa0b1532e8eba66538be09">r</a> == 3
<a name="l01413"></a>01413 && i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#b3eb1168ad9bc3d02b523b032f856b6c">g</a> == 3
<a name="l01414"></a>01414 && i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#cd92a14a0bbb205a634295e18f00bd87">b</a> == 2) {
<a name="l01415"></a>01415 i-><a class="code" href="structallegro__gl__display__info.html#736c31eafe099ac504e844b8fb3ab963">colour_depth</a> = 8;
<a name="l01416"></a>01416 }
<a name="l01417"></a>01417
<a name="l01418"></a>01418 <span class="keywordflow">if</span> (i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#f9de518467fa0b1532e8eba66538be09">r</a> == 5
<a name="l01419"></a>01419 && i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#cd92a14a0bbb205a634295e18f00bd87">b</a> == 5) {
<a name="l01420"></a>01420 <span class="keywordflow">if</span> (i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#b3eb1168ad9bc3d02b523b032f856b6c">g</a> == 5) {
<a name="l01421"></a>01421 i-><a class="code" href="structallegro__gl__display__info.html#736c31eafe099ac504e844b8fb3ab963">colour_depth</a> = 15;
<a name="l01422"></a>01422 }
<a name="l01423"></a>01423 <span class="keywordflow">if</span> (i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#b3eb1168ad9bc3d02b523b032f856b6c">g</a> == 6) {
<a name="l01424"></a>01424 i-><a class="code" href="structallegro__gl__display__info.html#736c31eafe099ac504e844b8fb3ab963">colour_depth</a> = 16;
<a name="l01425"></a>01425 }
<a name="l01426"></a>01426 }
<a name="l01427"></a>01427
<a name="l01428"></a>01428 <span class="keywordflow">if</span> (i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#f9de518467fa0b1532e8eba66538be09">r</a> == 8
<a name="l01429"></a>01429 && i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#b3eb1168ad9bc3d02b523b032f856b6c">g</a> == 8
<a name="l01430"></a>01430 && i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#cd92a14a0bbb205a634295e18f00bd87">b</a> == 8) {
<a name="l01431"></a>01431 <span class="keywordflow">if</span> (i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#87c70ef6046f7b5649c66590c102e0c4">a</a> == 0) {
<a name="l01432"></a>01432 i-><a class="code" href="structallegro__gl__display__info.html#736c31eafe099ac504e844b8fb3ab963">colour_depth</a> = 24;
<a name="l01433"></a>01433 }
<a name="l01434"></a>01434 <span class="keywordflow">if</span> (i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#87c70ef6046f7b5649c66590c102e0c4">a</a> == 8) {
<a name="l01435"></a>01435 i-><a class="code" href="structallegro__gl__display__info.html#736c31eafe099ac504e844b8fb3ab963">colour_depth</a> = 32;
<a name="l01436"></a>01436 <span class="comment">/* small hack that tries to guess alpha shifting */</span>
<a name="l01437"></a>01437 i-><a class="code" href="structallegro__gl__display__info.html#8350647b4bbeaf745bb055bf923065f7">a_shift</a> = 48 - i-><a class="code" href="structallegro__gl__display__info.html#29ac4703ce51b7b70326eb374186ad32">r_shift</a> - i-><a class="code" href="structallegro__gl__display__info.html#14d5a551c67db5c5083ffa310ff6bd00">g_shift</a> - i-><a class="code" href="structallegro__gl__display__info.html#7b626c8827c8198deaf26071fd46833e">b_shift</a>;
<a name="l01438"></a>01438 }
<a name="l01439"></a>01439 }
<a name="l01440"></a>01440
<a name="l01441"></a>01441 i-><a class="code" href="structallegro__gl__display__info.html#52dbe65e088cbeaa1ffe179eacc42571">allegro_format</a> = (i-><a class="code" href="structallegro__gl__display__info.html#736c31eafe099ac504e844b8fb3ab963">colour_depth</a> != 0)
<a name="l01442"></a>01442 && (i-><a class="code" href="structallegro__gl__display__info.html#14d5a551c67db5c5083ffa310ff6bd00">g_shift</a> == i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#cd92a14a0bbb205a634295e18f00bd87">b</a>)
<a name="l01443"></a>01443 && (i-><a class="code" href="structallegro__gl__display__info.html#29ac4703ce51b7b70326eb374186ad32">r_shift</a> * i-><a class="code" href="structallegro__gl__display__info.html#7b626c8827c8198deaf26071fd46833e">b_shift</a> == 0)
<a name="l01444"></a>01444 && (i-><a class="code" href="structallegro__gl__display__info.html#29ac4703ce51b7b70326eb374186ad32">r_shift</a> + i-><a class="code" href="structallegro__gl__display__info.html#7b626c8827c8198deaf26071fd46833e">b_shift</a>
<a name="l01445"></a>01445 == i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#cd92a14a0bbb205a634295e18f00bd87">b</a> + i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#b3eb1168ad9bc3d02b523b032f856b6c">g</a>);
<a name="l01446"></a>01446
<a name="l01447"></a>01447 <span class="keywordflow">if</span> (glXGetConfig(_xwin.display, v, GLX_SAMPLE_BUFFERS, &sbuffers)
<a name="l01448"></a>01448 == GLX_BAD_ATTRIBUTE) {
<a name="l01449"></a>01449 <span class="comment">/* Multisample extension is not supported */</span>
<a name="l01450"></a>01450 i-><a class="code" href="structallegro__gl__display__info.html#07036f3d972acefc5790df1ab33190d6">sample_buffers</a> = 0;
<a name="l01451"></a>01451 }
<a name="l01452"></a>01452 <span class="keywordflow">else</span> {
<a name="l01453"></a>01453 i-><a class="code" href="structallegro__gl__display__info.html#07036f3d972acefc5790df1ab33190d6">sample_buffers</a> = sbuffers;
<a name="l01454"></a>01454 }
<a name="l01455"></a>01455 <span class="keywordflow">if</span> (glXGetConfig(_xwin.display, v, GLX_SAMPLES, &samples)
<a name="l01456"></a>01456 == GLX_BAD_ATTRIBUTE) {
<a name="l01457"></a>01457 <span class="comment">/* Multisample extension is not supported */</span>
<a name="l01458"></a>01458 i-><a class="code" href="structallegro__gl__display__info.html#6bb01a18a7aa16e08d544f1b81536b44">samples</a> = 0;
<a name="l01459"></a>01459 }
<a name="l01460"></a>01460 <span class="keywordflow">else</span> {
<a name="l01461"></a>01461 i-><a class="code" href="structallegro__gl__display__info.html#6bb01a18a7aa16e08d544f1b81536b44">samples</a> = samples;
<a name="l01462"></a>01462 }
<a name="l01463"></a>01463
<a name="l01464"></a>01464
<a name="l01465"></a>01465 TRACE(<a class="code" href="alleggl_8c.html#09462782acac95f9a6da67adf659ed6e">PREFIX_I</a> <span class="stringliteral">"Color Depth: %i\n"</span>, buffer_size);
<a name="l01466"></a>01466 TRACE(<a class="code" href="alleggl_8c.html#09462782acac95f9a6da67adf659ed6e">PREFIX_I</a> <span class="stringliteral">"RGBA: %i.%i.%i.%i\n"</span>, i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#f9de518467fa0b1532e8eba66538be09">r</a>, i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#b3eb1168ad9bc3d02b523b032f856b6c">g</a>,
<a name="l01467"></a>01467 i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#cd92a14a0bbb205a634295e18f00bd87">b</a>, i-><a class="code" href="structallegro__gl__display__info.html#4d91d2f1759a1d6f3e6b0463e1d564e5">pixel_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#87c70ef6046f7b5649c66590c102e0c4">a</a>);
<a name="l01468"></a>01468 TRACE(<a class="code" href="alleggl_8c.html#09462782acac95f9a6da67adf659ed6e">PREFIX_I</a> <span class="stringliteral">"Accum: %i.%i.%i.%i\n"</span>, i-><a class="code" href="structallegro__gl__display__info.html#7f87a49c909fc0d69eb8b0729ec3afc6">accum_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#f9de518467fa0b1532e8eba66538be09">r</a>, i-><a class="code" href="structallegro__gl__display__info.html#7f87a49c909fc0d69eb8b0729ec3afc6">accum_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#b3eb1168ad9bc3d02b523b032f856b6c">g</a>,
<a name="l01469"></a>01469 i-><a class="code" href="structallegro__gl__display__info.html#7f87a49c909fc0d69eb8b0729ec3afc6">accum_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#cd92a14a0bbb205a634295e18f00bd87">b</a>, i-><a class="code" href="structallegro__gl__display__info.html#7f87a49c909fc0d69eb8b0729ec3afc6">accum_size</a>.<a class="code" href="unionallegro__gl__pixel__size.html#e04664badce9331a9199b88905494527">rgba</a>.<a class="code" href="structallegro__gl__rgba__size.html#87c70ef6046f7b5649c66590c102e0c4">a</a>);
<a name="l01470"></a>01470 TRACE(<a class="code" href="alleggl_8c.html#09462782acac95f9a6da67adf659ed6e">PREFIX_I</a> <span class="stringliteral">"DblBuf: %i Zbuf: %i Stereo: %i Aux: %i Stencil: %i\n"</span>,
<a name="l01471"></a>01471 i-><a class="code" href="structallegro__gl__display__info.html#620e7a0c77ce365b470b1bf629960989">doublebuffered</a>, i-><a class="code" href="structallegro__gl__display__info.html#0b5eaf55c97e5be1bec507ca8d1c45c7">depth_size</a>, i-><a class="code" href="structallegro__gl__display__info.html#5c5e59ff093bcfe869460636eda46f01">stereo</a>,
<a name="l01472"></a>01472 i-><a class="code" href="structallegro__gl__display__info.html#b0a89d6d93a3c8e565bfcfef23ae8fb8">aux_buffers</a>, i-><a class="code" href="structallegro__gl__display__info.html#fefde83b0454134e9980524577022f50">stencil_size</a>);
<a name="l01473"></a>01473 TRACE(<a class="code" href="alleggl_8c.html#09462782acac95f9a6da67adf659ed6e">PREFIX_I</a> <span class="stringliteral">"Shift: %i.%i.%i.%i\n"</span>, i-><a class="code" href="structallegro__gl__display__info.html#29ac4703ce51b7b70326eb374186ad32">r_shift</a>, i-><a class="code" href="structallegro__gl__display__info.html#14d5a551c67db5c5083ffa310ff6bd00">g_shift</a>, i-><a class="code" href="structallegro__gl__display__info.html#7b626c8827c8198deaf26071fd46833e">b_shift</a>,
<a name="l01474"></a>01474 i-><a class="code" href="structallegro__gl__display__info.html#8350647b4bbeaf745bb055bf923065f7">a_shift</a>);
<a name="l01475"></a>01475 TRACE(<a class="code" href="alleggl_8c.html#09462782acac95f9a6da67adf659ed6e">PREFIX_I</a> <span class="stringliteral">"Sample Buffers: %i Samples: %i\n"</span>, i-><a class="code" href="structallegro__gl__display__info.html#07036f3d972acefc5790df1ab33190d6">sample_buffers</a>, i-><a class="code" href="structallegro__gl__display__info.html#6bb01a18a7aa16e08d544f1b81536b44">samples</a>);
<a name="l01476"></a>01476 TRACE(<a class="code" href="alleggl_8c.html#09462782acac95f9a6da67adf659ed6e">PREFIX_I</a> <span class="stringliteral">"Decoded bpp: %i\n"</span>, i-><a class="code" href="structallegro__gl__display__info.html#736c31eafe099ac504e844b8fb3ab963">colour_depth</a>);
<a name="l01477"></a>01477
<a name="l01478"></a>01478 <span class="keywordflow">return</span> 0;
<a name="l01479"></a>01479 }
<a name="l01480"></a>01480
<a name="l01481"></a>01481
<a name="l01482"></a>01482
<a name="l01483"></a>01483 <span class="preprocessor">#ifdef ALLEGROGL_HAVE_XF86VIDMODE</span>
<a name="l01484"></a>01484 <span class="preprocessor"></span><span class="comment">/* allegro_gl_x_fetch_mode_list:</span>
<a name="l01485"></a>01485 <span class="comment"> * Generates a list of valid video modes (made after </span>
<a name="l01486"></a>01486 <span class="comment"> * _xvidmode_private_fetch_mode_list of Allegro)</span>
<a name="l01487"></a>01487 <span class="comment"> */</span>
<a name="l01488"></a>01488 <span class="keyword">static</span> GFX_MODE_LIST* allegro_gl_x_fetch_mode_list(<span class="keywordtype">void</span>)
<a name="l01489"></a>01489 {
<a name="l01490"></a>01490 <span class="keywordtype">int</span> num_modes = 0;
<a name="l01491"></a>01491 XF86VidModeModeInfo **modesinfo = NULL;
<a name="l01492"></a>01492 GFX_MODE_LIST *mode_list;
<a name="l01493"></a>01493 <span class="keywordtype">int</span> i;
<a name="l01494"></a>01494
<a name="l01495"></a>01495 XLOCK();
<a name="l01496"></a>01496
<a name="l01497"></a>01497 <span class="keywordflow">if</span> (get_xf86_modes(&modesinfo, &num_modes)) {
<a name="l01498"></a>01498 XUNLOCK();
<a name="l01499"></a>01499 <span class="keywordflow">return</span> NULL;
<a name="l01500"></a>01500 }
<a name="l01501"></a>01501
<a name="l01502"></a>01502 <span class="comment">/* Allocate space for mode list. */</span>
<a name="l01503"></a>01503 mode_list = malloc(<span class="keyword">sizeof</span>(GFX_MODE_LIST));
<a name="l01504"></a>01504 <span class="keywordflow">if</span> (!mode_list) {
<a name="l01505"></a>01505 free_modelines(modesinfo, num_modes);
<a name="l01506"></a>01506 XUNLOCK();
<a name="l01507"></a>01507 <span class="keywordflow">return</span> NULL;
<a name="l01508"></a>01508 }
<a name="l01509"></a>01509
<a name="l01510"></a>01510 mode_list->mode = malloc(<span class="keyword">sizeof</span>(GFX_MODE) * (num_modes + 1));
<a name="l01511"></a>01511 <span class="keywordflow">if</span> (!mode_list->mode) {
<a name="l01512"></a>01512 free(mode_list);
<a name="l01513"></a>01513 free_modelines(modesinfo, num_modes);
<a name="l01514"></a>01514 XUNLOCK();
<a name="l01515"></a>01515 <span class="keywordflow">return</span> NULL;
<a name="l01516"></a>01516 }
<a name="l01517"></a>01517
<a name="l01518"></a>01518 <span class="comment">/* Fill in mode list. */</span>
<a name="l01519"></a>01519 <span class="keywordflow">for</span> (i = 0; i < num_modes; i++) {
<a name="l01520"></a>01520 mode_list->mode[i].width = modesinfo[i]->hdisplay;
<a name="l01521"></a>01521 mode_list->mode[i].height = modesinfo[i]->vdisplay;
<a name="l01522"></a>01522 <span class="comment">/* Since XF86VidMode can not change the color depth of</span>
<a name="l01523"></a>01523 <span class="comment"> * the screen, there is no need to define modes for other</span>
<a name="l01524"></a>01524 <span class="comment"> * color depth than the desktop's.</span>
<a name="l01525"></a>01525 <span class="comment"> */</span>
<a name="l01526"></a>01526 mode_list->mode[i].bpp = desktop_color_depth();
<a name="l01527"></a>01527 }
<a name="l01528"></a>01528
<a name="l01529"></a>01529 mode_list->mode[num_modes].width = 0;
<a name="l01530"></a>01530 mode_list->mode[num_modes].height = 0;
<a name="l01531"></a>01531 mode_list->mode[num_modes].bpp = 0;
<a name="l01532"></a>01532 mode_list->num_modes = num_modes;
<a name="l01533"></a>01533
<a name="l01534"></a>01534 free_modelines(modesinfo, num_modes);
<a name="l01535"></a>01535
<a name="l01536"></a>01536 XUNLOCK();
<a name="l01537"></a>01537 <span class="keywordflow">return</span> mode_list;
<a name="l01538"></a>01538 }
<a name="l01539"></a>01539 <span class="preprocessor">#endif</span>
<a name="l01540"></a>01540 <span class="preprocessor"></span>
<a name="l01541"></a>01541
<a name="l01542"></a>01542
<a name="l01543"></a>01543 <span class="comment">/* allegro_gl_x_vsync:</span>
<a name="l01544"></a>01544 <span class="comment"> * Wait for a vertical retrace. GLX_SGI_video_sync is needed.</span>
<a name="l01545"></a>01545 <span class="comment"> */</span>
<a name="l01546"></a>01546 <span class="keyword">static</span> <span class="keywordtype">void</span> allegro_gl_x_vsync(<span class="keywordtype">void</span>)
<a name="l01547"></a>01547 {
<a name="l01548"></a>01548 XLOCK();
<a name="l01549"></a>01549 <span class="keywordflow">if</span> (allegro_gl_extensions_GLX.SGI_video_sync) {
<a name="l01550"></a>01550 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> count;
<a name="l01551"></a>01551
<a name="l01552"></a>01552 glXGetVideoSyncSGI(&count);
<a name="l01553"></a>01553 glXWaitVideoSyncSGI(2, (count+1) & 1, &count);
<a name="l01554"></a>01554 }
<a name="l01555"></a>01555 XUNLOCK();
<a name="l01556"></a>01556 }
<a name="l01557"></a>01557
<a name="l01558"></a>01558
<a name="l01559"></a>01559
<a name="l01560"></a>01560 <span class="comment">/******************************/</span>
<a name="l01561"></a>01561 <span class="comment">/* AllegroGL driver functions */</span>
<a name="l01562"></a>01562 <span class="comment">/******************************/</span>
<a name="l01563"></a>01563
<a name="l01564"></a>01564 <span class="comment">/* flip:</span>
<a name="l01565"></a>01565 <span class="comment"> * Does a page flip / double buffer copy / whatever it really is.</span>
<a name="l01566"></a>01566 <span class="comment"> */</span>
<a name="l01567"></a>01567 <span class="keyword">static</span> <span class="keywordtype">void</span> flip (<span class="keywordtype">void</span>)
<a name="l01568"></a>01568 {
<a name="l01569"></a>01569 XLOCK();
<a name="l01570"></a>01570 <span class="keywordflow">if</span> (_glxwin.use_glx_window)
<a name="l01571"></a>01571 glXSwapBuffers (_xwin.display, _glxwin.window);
<a name="l01572"></a>01572 <span class="keywordflow">else</span>
<a name="l01573"></a>01573 glXSwapBuffers (_xwin.display, _xwin.window);
<a name="l01574"></a>01574 XUNLOCK();
<a name="l01575"></a>01575 }
<a name="l01576"></a>01576
<a name="l01577"></a>01577
<a name="l01578"></a>01578
<a name="l01579"></a>01579 <span class="comment">/* gl_on, gl_off:</span>
<a name="l01580"></a>01580 <span class="comment"> * Switches to/from GL mode.</span>
<a name="l01581"></a>01581 <span class="comment"> */</span>
<a name="l01582"></a>01582 <span class="keyword">static</span> <span class="keywordtype">void</span> gl_on (<span class="keywordtype">void</span>)
<a name="l01583"></a>01583 {
<a name="l01584"></a>01584 <span class="preprocessor">#ifdef OLD_ALLEGRO</span>
<a name="l01585"></a>01585 <span class="preprocessor"></span> DISABLE();
<a name="l01586"></a>01586 <span class="preprocessor">#endif</span>
<a name="l01587"></a>01587 <span class="preprocessor"></span>}
<a name="l01588"></a>01588
<a name="l01589"></a>01589
<a name="l01590"></a>01590
<a name="l01591"></a>01591 <span class="keyword">static</span> <span class="keywordtype">void</span> gl_off (<span class="keywordtype">void</span>)
<a name="l01592"></a>01592 {
<a name="l01593"></a>01593 <span class="preprocessor">#ifdef OLD_ALLEGRO</span>
<a name="l01594"></a>01594 <span class="preprocessor"></span> ENABLE();
<a name="l01595"></a>01595 _xwin_handle_input();
<a name="l01596"></a>01596 <span class="preprocessor">#endif</span>
<a name="l01597"></a>01597 <span class="preprocessor"></span>}
<a name="l01598"></a>01598
<a name="l01599"></a>01599
<a name="l01600"></a>01600
<a name="l01601"></a>01601 <span class="comment">/*****************/</span>
<a name="l01602"></a>01602 <span class="comment">/* Driver struct */</span>
<a name="l01603"></a>01603 <span class="comment">/*****************/</span>
<a name="l01604"></a>01604
<a name="l01605"></a>01605 <span class="keyword">static</span> <span class="keyword">struct </span><a class="code" href="structallegro__gl__driver.html">allegro_gl_driver</a> allegro_gl_x = {
<a name="l01606"></a>01606 flip,
<a name="l01607"></a>01607 gl_on,
<a name="l01608"></a>01608 gl_off,
<a name="l01609"></a>01609 NULL
<a name="l01610"></a>01610 };
<a name="l01611"></a>01611
</pre></div><hr size="1"><address style="text-align: right;"><small>Generated on Mon Nov 12 11:05:32 2007 for AllegroGL by
<a href="http://www.doxygen.org/index.html">
<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.2 </small></address>
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