Mercurial > sdl-ios-xcode

annotate src/video/x11/SDL_x11opengl.c @ 3846:66fb40445587 SDL-ryan-multiple-audio-device

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Removed distinction between "available" and "init" in audio backends, since both had to be checked for success as a pair at the higher level and several of the Available methods were just always-succeed placeholders anyhow. Now the availability check is done in the init code, and the higher level tries all possible drivers until one manages to initialize successfully.
author Ryan C. Gordon <icculus@icculus.org>
date Tue, 17 Oct 2006 09:09:21 +0000
parents ba0d62354872
children 12bcd4fd2606
rev   line source
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2006 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with _this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22 #include "SDL_config.h"
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23
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24 #include "SDL_x11video.h"
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25
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26 /* GLX implementation of SDL OpenGL support */
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27
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28 #if SDL_VIDEO_OPENGL_GLX
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29 #include "SDL_loadso.h"
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30
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31 #if defined(__IRIX__)
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32 /* IRIX doesn't have a GL library versioning system */
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33 #define DEFAULT_OPENGL "libGL.so"
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34 #elif defined(__MACOSX__)
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35 #define DEFAULT_OPENGL "/usr/X11R6/lib/libGL.1.dylib"
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36 #elif defined(__QNXNTO__)
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37 #define DEFAULT_OPENGL "libGL.so.3"
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38 #else
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39 #define DEFAULT_OPENGL "libGL.so.1"
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40 #endif
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41
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42 #ifndef GLX_ARB_multisample
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43 #define GLX_ARB_multisample
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44 #define GLX_SAMPLE_BUFFERS_ARB 100000
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45 #define GLX_SAMPLES_ARB 100001
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46 #endif
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47
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48 #ifndef GLX_EXT_visual_rating
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49 #define GLX_EXT_visual_rating
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50 #define GLX_VISUAL_CAVEAT_EXT 0x20
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51 #define GLX_NONE_EXT 0x8000
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52 #define GLX_SLOW_VISUAL_EXT 0x8001
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53 #define GLX_NON_CONFORMANT_VISUAL_EXT 0x800D
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54 #endif
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55
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56 #define OPENGL_REQUIRS_DLOPEN
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57 #if defined(OPENGL_REQUIRS_DLOPEN) && defined(SDL_LOADSO_DLOPEN)
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58 #include <dlfcn.h>
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59 #define GL_LoadObject(X) dlopen(X, (RTLD_NOW|RTLD_GLOBAL))
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60 #define GL_LoadFunction dlsym
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61 #define GL_UnloadObject dlclose
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62 #else
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63 #define GL_LoadObject SDL_LoadObject
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64 #define GL_LoadFunction SDL_LoadFunction
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65 #define GL_UnloadObject SDL_UnloadObject
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66 #endif
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67
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68 int
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69 X11_GL_LoadLibrary(_THIS, const char *path)
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70 {
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71 void *handle;
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72
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73 if (_this->gl_config.driver_loaded) {
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74 if (path) {
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75 SDL_SetError("OpenGL library already loaded");
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76 return -1;
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77 } else {
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78 ++_this->gl_config.driver_loaded;
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79 return 0;
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80 }
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81 }
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82 if (path == NULL) {
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83 path = SDL_getenv("SDL_OPENGL_LIBRARY");
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84 }
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85 if (path == NULL) {
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86 path = DEFAULT_OPENGL;
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87 }
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88 handle = GL_LoadObject(path);
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89 if (!handle) {
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90 return -1;
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91 }
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92
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93 /* Load new function pointers */
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94 _this->gl_data->glXGetProcAddress =
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95 (void *(*)(const GLubyte *)) GL_LoadFunction(handle,
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96 "glXGetProcAddressARB");
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97 _this->gl_data->glXChooseVisual =
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98 (XVisualInfo * (*)(Display *, int, int *)) GL_LoadFunction(handle,
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99 "glXChooseVisual");
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100 _this->gl_data->glXCreateContext =
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101 (GLXContext(*)(Display *, XVisualInfo *, GLXContext, int))
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102 GL_LoadFunction(handle, "glXCreateContext");
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103 _this->gl_data->glXDestroyContext =
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104 (void (*)(Display *, GLXContext)) GL_LoadFunction(handle,
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105 "glXDestroyContext");
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106 _this->gl_data->glXMakeCurrent =
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107 (int (*)(Display *, GLXDrawable, GLXContext)) GL_LoadFunction(handle,
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108 "glXMakeCurrent");
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109 _this->gl_data->glXSwapBuffers =
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110 (void (*)(Display *, GLXDrawable)) GL_LoadFunction(handle,
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111 "glXSwapBuffers");
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112
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113 if (!_this->gl_data->glXChooseVisual ||
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114 !_this->gl_data->glXCreateContext ||
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115 !_this->gl_data->glXDestroyContext ||
1956
ba0d62354872 Simplified driver window creation code.
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116 !_this->gl_data->glXMakeCurrent || !_this->gl_data->glXSwapBuffers) {
1952
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117 SDL_SetError("Could not retrieve OpenGL functions");
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118 return -1;
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119 }
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120
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121 _this->gl_config.dll_handle = handle;
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122 SDL_strlcpy(_this->gl_config.driver_path, path,
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123 SDL_arraysize(_this->gl_config.driver_path));
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124 _this->gl_config.driver_loaded = 1;
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125 return 0;
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126 }
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127
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128 void *
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129 X11_GL_GetProcAddress(_THIS, const char *proc)
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130 {
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131 void *handle;
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132
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133 handle = _this->gl_config.dll_handle;
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134 if (_this->gl_data->glXGetProcAddress) {
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135 return _this->gl_data->glXGetProcAddress((const GLubyte *) proc);
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136 }
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137 return GL_LoadFunction(handle, proc);
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138 }
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139
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140 static void
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141 X11_GL_UnloadLibrary(_THIS)
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142 {
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143 if (_this->gl_config.driver_loaded > 0) {
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144 if (--_this->gl_config.driver_loaded > 0) {
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145 return;
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146 }
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147 GL_UnloadObject(_this->gl_config.dll_handle);
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148 _this->gl_config.dll_handle = NULL;
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149 }
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150 }
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151
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152 static SDL_bool
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153 HasExtension(const char *extension, const char *extensions)
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154 {
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parents:
diff changeset
155 const char *start;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
156 const char *where, *terminator;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
157
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
158 /* Extension names should not have spaces. */
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
159 where = SDL_strchr(extension, ' ');
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
160 if (where || *extension == '\0')
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
161 return SDL_FALSE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
162
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
163 if (!extensions)
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
164 return SDL_FALSE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
165
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
166 /* It takes a bit of care to be fool-proof about parsing the
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
167 * OpenGL extensions string. Don't be fooled by sub-strings,
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
168 * etc. */
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
169
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
170 start = extensions;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
171
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
172 for (;;) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
173 where = SDL_strstr(start, extension);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
174 if (!where)
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
175 break;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
176
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
177 terminator = where + SDL_strlen(extension);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
178 if (where == start || *(where - 1) == ' ')
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
179 if (*terminator == ' ' || *terminator == '\0')
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
180 return SDL_TRUE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
181
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
182 start = terminator;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
183 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
184 return SDL_FALSE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
185 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
186
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
187 static void
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
188 X11_GL_InitExtensions(_THIS)
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
189 {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
190 Display *display = ((SDL_VideoData *) _this->driverdata)->display;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
191 int screen = ((SDL_DisplayData *) SDL_CurrentDisplay.driverdata)->screen;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
192 XVisualInfo *vinfo;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
193 XSetWindowAttributes xattr;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
194 Window w;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
195 GLXContext context;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
196 const char *(*glXQueryExtensionsStringFunc) (Display *, int);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
197 const char *extensions;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
198
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
199 vinfo = X11_GL_GetVisual(_this, display, screen);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
200 if (!vinfo) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
201 return;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
202 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
203 xattr.background_pixel = 0;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
204 xattr.border_pixel = 0;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
205 xattr.colormap =
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
206 XCreateColormap(display, RootWindow(display, screen), vinfo->visual,
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
207 AllocNone);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
208 w = XCreateWindow(display, RootWindow(display, screen), 0, 0, 32, 32, 0,
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
209 vinfo->depth, InputOutput, vinfo->visual,
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
210 (CWBackPixel | CWBorderPixel | CWColormap), &xattr);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
211 context = _this->gl_data->glXCreateContext(display, vinfo, NULL, True);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
212 if (context) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
213 _this->gl_data->glXMakeCurrent(display, w, context);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
214 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
215 XFree(vinfo);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
216
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
217 glXQueryExtensionsStringFunc =
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
218 (const char *(*)(Display *, int)) X11_GL_GetProcAddress(_this,
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
219 "glXQueryExtensionsString");
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
220 if (glXQueryExtensionsStringFunc) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
221 extensions = glXQueryExtensionsStringFunc(display, screen);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
222 } else {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
223 extensions = NULL;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
224 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
225
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
226 /* Check for SGI_swap_control */
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
227 if (HasExtension("SGI_swap_control", extensions)) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
228 _this->gl_data->glXSwapIntervalSGI =
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
229 (int (*)(int)) X11_GL_GetProcAddress(_this, "glXSwapIntervalSGI");
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
230 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
231
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
232 /* Check for GLX_MESA_swap_control */
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
233 if (HasExtension("GLX_MESA_swap_control", extensions)) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
234 _this->gl_data->glXSwapIntervalMESA =
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
235 (GLint(*)(unsigned)) X11_GL_GetProcAddress(_this,
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
236 "glXSwapIntervalMESA");
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
237 _this->gl_data->glXGetSwapIntervalMESA =
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
238 (GLint(*)(void)) X11_GL_GetProcAddress(_this,
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
239 "glXGetSwapIntervalMESA");
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
240 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
241
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
242 /* Check for GLX_EXT_visual_rating */
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
243 if (HasExtension("GLX_EXT_visual_rating", extensions)) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
244 _this->gl_data->HAS_GLX_EXT_visual_rating = SDL_TRUE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
245 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
246
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
247 if (context) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
248 _this->gl_data->glXMakeCurrent(display, None, NULL);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
249 _this->gl_data->glXDestroyContext(display, context);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
250 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
251 XDestroyWindow(display, w);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
252 X11_PumpEvents(_this);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
253 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
254
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
255 int
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
256 X11_GL_Initialize(_THIS)
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
257 {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
258 if (_this->gl_data) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
259 ++_this->gl_data->initialized;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
260 return 0;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
261 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
262
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
263 _this->gl_data =
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
264 (struct SDL_GLDriverData *) SDL_calloc(1,
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
265 sizeof(struct
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
266 SDL_GLDriverData));
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
267 if (!_this->gl_data) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
268 SDL_OutOfMemory();
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
269 return -1;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
270 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
271 _this->gl_data->initialized = 1;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
272
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
273 if (X11_GL_LoadLibrary(_this, NULL) < 0) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
274 return -1;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
275 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
276
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
277 /* Initialize extensions */
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
278 X11_GL_InitExtensions(_this);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
279
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
280 return 0;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
281 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
282
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
283 void
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
284 X11_GL_Shutdown(_THIS)
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
285 {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
286 if (!_this->gl_data || (--_this->gl_data->initialized > 0)) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
287 return;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
288 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
289
1954
c20e158a9299 Don't unload the OpenGL library before the X display is closed.
Sam Lantinga <slouken@libsdl.org>
parents: 1953
diff changeset
290 /* Don't actually unload the library, since it may have registered
c20e158a9299 Don't unload the OpenGL library before the X display is closed.
Sam Lantinga <slouken@libsdl.org>
parents: 1953
diff changeset
291 * X11 shutdown hooks, per the notes at:
c20e158a9299 Don't unload the OpenGL library before the X display is closed.
Sam Lantinga <slouken@libsdl.org>
parents: 1953
diff changeset
292 * http://dri.sourceforge.net/doc/DRIuserguide.html
c20e158a9299 Don't unload the OpenGL library before the X display is closed.
Sam Lantinga <slouken@libsdl.org>
parents: 1953
diff changeset
293 * //X11_GL_UnloadLibrary(_this);
c20e158a9299 Don't unload the OpenGL library before the X display is closed.
Sam Lantinga <slouken@libsdl.org>
parents: 1953
diff changeset
294 */
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
295
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
296 SDL_free(_this->gl_data);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
297 _this->gl_data = NULL;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
298 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
299
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
300 XVisualInfo *
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
301 X11_GL_GetVisual(_THIS, Display * display, int screen)
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
302 {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
303 XVisualInfo *vinfo;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
304
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
305 /* 64 seems nice. */
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
306 int attribs[64];
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
307 int i;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
308
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
309 /* Setup our GLX attributes according to the gl_config. */
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
310 i = 0;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
311 attribs[i++] = GLX_RGBA;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
312 attribs[i++] = GLX_RED_SIZE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
313 attribs[i++] = _this->gl_config.red_size;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
314 attribs[i++] = GLX_GREEN_SIZE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
315 attribs[i++] = _this->gl_config.green_size;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
316 attribs[i++] = GLX_BLUE_SIZE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
317 attribs[i++] = _this->gl_config.blue_size;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
318
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
319 if (_this->gl_config.alpha_size) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
320 attribs[i++] = GLX_ALPHA_SIZE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
321 attribs[i++] = _this->gl_config.alpha_size;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
322 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
323
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
324 if (_this->gl_config.buffer_size) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
325 attribs[i++] = GLX_BUFFER_SIZE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
326 attribs[i++] = _this->gl_config.buffer_size;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
327 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
328
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
329 if (_this->gl_config.double_buffer) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
330 attribs[i++] = GLX_DOUBLEBUFFER;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
331 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
332
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
333 attribs[i++] = GLX_DEPTH_SIZE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
334 attribs[i++] = _this->gl_config.depth_size;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
335
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
336 if (_this->gl_config.stencil_size) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
337 attribs[i++] = GLX_STENCIL_SIZE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
338 attribs[i++] = _this->gl_config.stencil_size;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
339 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
340
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
341 if (_this->gl_config.accum_red_size) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
342 attribs[i++] = GLX_ACCUM_RED_SIZE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
343 attribs[i++] = _this->gl_config.accum_red_size;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
344 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
345
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
346 if (_this->gl_config.accum_green_size) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
347 attribs[i++] = GLX_ACCUM_GREEN_SIZE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
348 attribs[i++] = _this->gl_config.accum_green_size;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
349 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
350
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
351 if (_this->gl_config.accum_blue_size) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
352 attribs[i++] = GLX_ACCUM_BLUE_SIZE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
353 attribs[i++] = _this->gl_config.accum_blue_size;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
354 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
355
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
356 if (_this->gl_config.accum_alpha_size) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
357 attribs[i++] = GLX_ACCUM_ALPHA_SIZE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
358 attribs[i++] = _this->gl_config.accum_alpha_size;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
359 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
360
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
361 if (_this->gl_config.stereo) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
362 attribs[i++] = GLX_STEREO;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
363 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
364
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
365 if (_this->gl_config.multisamplebuffers) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
366 attribs[i++] = GLX_SAMPLE_BUFFERS_ARB;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
367 attribs[i++] = _this->gl_config.multisamplebuffers;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
368 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
369
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
370 if (_this->gl_config.multisamplesamples) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
371 attribs[i++] = GLX_SAMPLES_ARB;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
372 attribs[i++] = _this->gl_config.multisamplesamples;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
373 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
374
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
375 if (_this->gl_config.accelerated >= 0
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
376 && _this->gl_data->HAS_GLX_EXT_visual_rating) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
377 attribs[i++] = GLX_VISUAL_CAVEAT_EXT;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
378 attribs[i++] = GLX_NONE_EXT;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
379 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
380 #ifdef GLX_DIRECT_COLOR /* Try for a DirectColor visual for gamma support */
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
381 if (!SDL_getenv("SDL_VIDEO_X11_NODIRECTCOLOR")) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
382 attribs[i++] = GLX_X_VISUAL_TYPE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
383 attribs[i++] = GLX_DIRECT_COLOR;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
384 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
385 #endif
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
386 attribs[i++] = None;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
387
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
388 vinfo = _this->gl_data->glXChooseVisual(display, screen, attribs);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
389 #ifdef GLX_DIRECT_COLOR
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
390 if (!vinfo && !SDL_getenv("SDL_VIDEO_X11_NODIRECTCOLOR")) { /* No DirectColor visual? Try again.. */
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
391 attribs[i - 3] = None;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
392 vinfo = _this->gl_data->glXChooseVisual(display, screen, attribs);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
393 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
394 #endif
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
395 if (!vinfo) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
396 SDL_SetError("Couldn't find matching GLX visual");
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
397 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
398 return vinfo;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
399 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
400
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
401 SDL_GLContext
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
402 X11_GL_CreateContext(_THIS, SDL_Window * window)
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
403 {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
404 SDL_WindowData *data = (SDL_WindowData *) window->driverdata;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
405 Display *display = data->videodata->display;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
406 int screen =
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
407 ((SDL_DisplayData *) SDL_GetDisplayFromWindow(window)->driverdata)->
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
408 screen;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
409 XWindowAttributes xattr;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
410 XVisualInfo v, *vinfo;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
411 int n;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
412 GLXContext context = NULL;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
413
1955
Sam Lantinga <slouken@libsdl.org>
parents: 1954
diff changeset
414 /* We do this to create a clean separation between X and GLX errors. */
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
415 XSync(display, False);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
416 XGetWindowAttributes(display, data->window, &xattr);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
417 v.screen = screen;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
418 v.visualid = XVisualIDFromVisual(xattr.visual);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
419 vinfo = XGetVisualInfo(display, VisualScreenMask | VisualIDMask, &v, &n);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
420 if (vinfo) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
421 context =
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
422 _this->gl_data->glXCreateContext(display, vinfo, NULL, True);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
423 XFree(vinfo);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
424 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
425 XSync(display, False);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
426
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
427 if (!context) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
428 SDL_SetError("Could not create GL context");
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
429 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
430 return (SDL_GLContext) context;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
431 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
432
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
433 int
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
434 X11_GL_MakeCurrent(_THIS, SDL_Window * window, SDL_GLContext context)
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
435 {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
436 Display *display = ((SDL_VideoData *) _this->driverdata)->display;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
437 Window drawable =
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
438 (window ? ((SDL_WindowData *) window->driverdata)->window : None);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
439 GLXContext glx_context = (GLXContext) context;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
440 int status;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
441
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
442 status = 0;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
443 if (!_this->gl_data->glXMakeCurrent(display, drawable, glx_context)) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
444 SDL_SetError("Unable to make GL context current");
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
445 status = -1;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
446 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
447 XSync(display, False);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
448
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
449 return (status);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
450 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
451
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
452 int
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
453 X11_GL_SetSwapInterval(_THIS, int interval)
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
454 {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
455 int status;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
456
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
457 if (_this->gl_data->glXSwapIntervalMESA) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
458 status = _this->gl_data->glXSwapIntervalMESA(interval);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
459 if (status != 0) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
460 SDL_SetError("glxSwapIntervalMESA failed");
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
461 status = -1;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
462 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
463 } else if (_this->gl_data->glXSwapIntervalSGI) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
464 status = _this->gl_data->glXSwapIntervalSGI(interval);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
465 if (status != 0) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
466 SDL_SetError("glxSwapIntervalSGI failed");
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
467 status = -1;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
468 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
469 } else {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
470 SDL_Unsupported();
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
471 status = -1;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
472 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
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473 return status;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
474 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
475
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
476 int
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
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477 X11_GL_GetSwapInterval(_THIS)
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
478 {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
479 if (_this->gl_data->glXGetSwapIntervalMESA) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
480 return _this->gl_data->glXGetSwapIntervalMESA();
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
481 } else {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
482 SDL_Unsupported();
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
483 return -1;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
484 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
485 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
486
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
487 void
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
488 X11_GL_SwapWindow(_THIS, SDL_Window * window)
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
489 {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
490 SDL_WindowData *data = (SDL_WindowData *) window->driverdata;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
491 Display *display = data->videodata->display;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
492
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
493 _this->gl_data->glXSwapBuffers(display, data->window);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
494 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
495
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
496 void
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
497 X11_GL_DeleteContext(_THIS, SDL_GLContext context)
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
498 {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
499 Display *display = ((SDL_VideoData *) _this->driverdata)->display;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
500 GLXContext glx_context = (GLXContext) context;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
501
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
502 _this->gl_data->glXDestroyContext(display, glx_context);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
503 }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
504
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
505 #endif /* SDL_VIDEO_OPENGL_GLX */
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
506
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
507 /* vi: set ts=4 sw=4 expandtab: */