Mercurial > sdl-ios-xcode
annotate src/video/x11/SDL_x11opengl.c @ 1955:8c6106e45fc1
(none)
author | Sam Lantinga <slouken@libsdl.org> |
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date | Sat, 29 Jul 2006 03:57:55 +0000 |
parents | c20e158a9299 |
children | ba0d62354872 |
rev | line source |
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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 || |
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116 !_this->gl_data->glXMakeCurrent || |
1953
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117 !_this->gl_data->glXSwapBuffers) { |
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118 SDL_SetError("Could not retrieve OpenGL functions"); |
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119 return -1; |
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120 } |
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121 |
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122 _this->gl_config.dll_handle = handle; |
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123 SDL_strlcpy(_this->gl_config.driver_path, path, |
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124 SDL_arraysize(_this->gl_config.driver_path)); |
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125 _this->gl_config.driver_loaded = 1; |
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126 return 0; |
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127 } |
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128 |
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129 void * |
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130 X11_GL_GetProcAddress(_THIS, const char *proc) |
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131 { |
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132 void *handle; |
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133 |
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134 handle = _this->gl_config.dll_handle; |
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135 if (_this->gl_data->glXGetProcAddress) { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
136 return _this->gl_data->glXGetProcAddress((const GLubyte *) proc); |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
137 } |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
138 return GL_LoadFunction(handle, proc); |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
139 } |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
140 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
141 static void |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
142 X11_GL_UnloadLibrary(_THIS) |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
143 { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
144 if (_this->gl_config.driver_loaded > 0) { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
145 if (--_this->gl_config.driver_loaded > 0) { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
146 return; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
147 } |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
148 GL_UnloadObject(_this->gl_config.dll_handle); |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
149 _this->gl_config.dll_handle = NULL; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
150 } |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
151 } |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
152 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
153 static SDL_bool |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
154 HasExtension(const char *extension, const char *extensions) |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
155 { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
156 const char *start; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
157 const char *where, *terminator; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
158 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
159 /* Extension names should not have spaces. */ |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
160 where = SDL_strchr(extension, ' '); |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
161 if (where || *extension == '\0') |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
162 return SDL_FALSE; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
163 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
164 if (!extensions) |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
165 return SDL_FALSE; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
166 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
167 /* 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
|
168 * OpenGL extensions string. Don't be fooled by sub-strings, |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
169 * etc. */ |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
170 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
171 start = extensions; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
172 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
173 for (;;) { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
174 where = SDL_strstr(start, extension); |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
175 if (!where) |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
176 break; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
177 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
178 terminator = where + SDL_strlen(extension); |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
179 if (where == start || *(where - 1) == ' ') |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
180 if (*terminator == ' ' || *terminator == '\0') |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
181 return SDL_TRUE; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
182 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
183 start = terminator; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
184 } |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
185 return SDL_FALSE; |
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 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
188 static void |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
189 X11_GL_InitExtensions(_THIS) |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
190 { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
191 Display *display = ((SDL_VideoData *) _this->driverdata)->display; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
192 int screen = ((SDL_DisplayData *) SDL_CurrentDisplay.driverdata)->screen; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
193 XVisualInfo *vinfo; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
194 XSetWindowAttributes xattr; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
195 Window w; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
196 GLXContext context; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
197 const char *(*glXQueryExtensionsStringFunc) (Display *, int); |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
198 const char *extensions; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
199 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
200 vinfo = X11_GL_GetVisual(_this, display, screen); |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
201 if (!vinfo) { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
202 return; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
203 } |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
204 xattr.background_pixel = 0; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
205 xattr.border_pixel = 0; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
206 xattr.colormap = |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
207 XCreateColormap(display, RootWindow(display, screen), vinfo->visual, |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
208 AllocNone); |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
209 w = XCreateWindow(display, RootWindow(display, screen), 0, 0, 32, 32, 0, |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
210 vinfo->depth, InputOutput, vinfo->visual, |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
211 (CWBackPixel | CWBorderPixel | CWColormap), &xattr); |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
212 context = _this->gl_data->glXCreateContext(display, vinfo, NULL, True); |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
213 if (context) { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
214 _this->gl_data->glXMakeCurrent(display, w, context); |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
215 } |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
216 XFree(vinfo); |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
217 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
218 glXQueryExtensionsStringFunc = |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
219 (const char *(*)(Display *, int)) X11_GL_GetProcAddress(_this, |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
220 "glXQueryExtensionsString"); |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
221 if (glXQueryExtensionsStringFunc) { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
222 extensions = glXQueryExtensionsStringFunc(display, screen); |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
223 } else { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
224 extensions = NULL; |
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 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
227 /* Check for SGI_swap_control */ |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
228 if (HasExtension("SGI_swap_control", extensions)) { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
229 _this->gl_data->glXSwapIntervalSGI = |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
230 (int (*)(int)) X11_GL_GetProcAddress(_this, "glXSwapIntervalSGI"); |
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 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
233 /* Check for GLX_MESA_swap_control */ |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
234 if (HasExtension("GLX_MESA_swap_control", extensions)) { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
235 _this->gl_data->glXSwapIntervalMESA = |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
236 (GLint(*)(unsigned)) X11_GL_GetProcAddress(_this, |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
237 "glXSwapIntervalMESA"); |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
238 _this->gl_data->glXGetSwapIntervalMESA = |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
239 (GLint(*)(void)) X11_GL_GetProcAddress(_this, |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
240 "glXGetSwapIntervalMESA"); |
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 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
243 /* Check for GLX_EXT_visual_rating */ |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
244 if (HasExtension("GLX_EXT_visual_rating", extensions)) { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
245 _this->gl_data->HAS_GLX_EXT_visual_rating = SDL_TRUE; |
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 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
248 if (context) { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
249 _this->gl_data->glXMakeCurrent(display, None, NULL); |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
250 _this->gl_data->glXDestroyContext(display, context); |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
251 } |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
252 XDestroyWindow(display, w); |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
253 X11_PumpEvents(_this); |
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 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
256 int |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
257 X11_GL_Initialize(_THIS) |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
258 { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
259 if (_this->gl_data) { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
260 ++_this->gl_data->initialized; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
261 return 0; |
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 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
264 _this->gl_data = |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
265 (struct SDL_GLDriverData *) SDL_calloc(1, |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
266 sizeof(struct |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
267 SDL_GLDriverData)); |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
268 if (!_this->gl_data) { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
269 SDL_OutOfMemory(); |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
270 return -1; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
271 } |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
272 _this->gl_data->initialized = 1; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
273 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
274 if (X11_GL_LoadLibrary(_this, NULL) < 0) { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
275 return -1; |
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 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
278 /* Initialize extensions */ |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
279 X11_GL_InitExtensions(_this); |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
280 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
281 return 0; |
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 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
284 void |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
285 X11_GL_Shutdown(_THIS) |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
286 { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
287 if (!_this->gl_data || (--_this->gl_data->initialized > 0)) { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
288 return; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
289 } |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
290 |
1954
c20e158a9299
Don't unload the OpenGL library before the X display is closed.
Sam Lantinga <slouken@libsdl.org>
parents:
1953
diff
changeset
|
291 /* 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
|
292 * 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
|
293 * 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
|
294 * //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
|
295 */ |
1952
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
296 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
297 SDL_free(_this->gl_data); |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
298 _this->gl_data = NULL; |
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 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
301 XVisualInfo * |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
302 X11_GL_GetVisual(_THIS, Display * display, int screen) |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
303 { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
304 XVisualInfo *vinfo; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
305 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
306 /* 64 seems nice. */ |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
307 int attribs[64]; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
308 int i; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
309 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
310 /* Setup our GLX attributes according to the gl_config. */ |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
311 i = 0; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
312 attribs[i++] = GLX_RGBA; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
313 attribs[i++] = GLX_RED_SIZE; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
314 attribs[i++] = _this->gl_config.red_size; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
315 attribs[i++] = GLX_GREEN_SIZE; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
316 attribs[i++] = _this->gl_config.green_size; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
317 attribs[i++] = GLX_BLUE_SIZE; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
318 attribs[i++] = _this->gl_config.blue_size; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
319 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
320 if (_this->gl_config.alpha_size) { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
321 attribs[i++] = GLX_ALPHA_SIZE; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
322 attribs[i++] = _this->gl_config.alpha_size; |
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 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
325 if (_this->gl_config.buffer_size) { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
326 attribs[i++] = GLX_BUFFER_SIZE; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
327 attribs[i++] = _this->gl_config.buffer_size; |
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 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
330 if (_this->gl_config.double_buffer) { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
331 attribs[i++] = GLX_DOUBLEBUFFER; |
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 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
334 attribs[i++] = GLX_DEPTH_SIZE; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
335 attribs[i++] = _this->gl_config.depth_size; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
336 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
337 if (_this->gl_config.stencil_size) { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
338 attribs[i++] = GLX_STENCIL_SIZE; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
339 attribs[i++] = _this->gl_config.stencil_size; |
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 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
342 if (_this->gl_config.accum_red_size) { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
343 attribs[i++] = GLX_ACCUM_RED_SIZE; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
344 attribs[i++] = _this->gl_config.accum_red_size; |
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 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
347 if (_this->gl_config.accum_green_size) { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
348 attribs[i++] = GLX_ACCUM_GREEN_SIZE; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
349 attribs[i++] = _this->gl_config.accum_green_size; |
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 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
352 if (_this->gl_config.accum_blue_size) { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
353 attribs[i++] = GLX_ACCUM_BLUE_SIZE; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
354 attribs[i++] = _this->gl_config.accum_blue_size; |
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 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
357 if (_this->gl_config.accum_alpha_size) { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
358 attribs[i++] = GLX_ACCUM_ALPHA_SIZE; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
359 attribs[i++] = _this->gl_config.accum_alpha_size; |
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 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
362 if (_this->gl_config.stereo) { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
363 attribs[i++] = GLX_STEREO; |
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 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
366 if (_this->gl_config.multisamplebuffers) { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
367 attribs[i++] = GLX_SAMPLE_BUFFERS_ARB; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
368 attribs[i++] = _this->gl_config.multisamplebuffers; |
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 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
371 if (_this->gl_config.multisamplesamples) { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
372 attribs[i++] = GLX_SAMPLES_ARB; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
373 attribs[i++] = _this->gl_config.multisamplesamples; |
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 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
376 if (_this->gl_config.accelerated >= 0 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
377 && _this->gl_data->HAS_GLX_EXT_visual_rating) { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
378 attribs[i++] = GLX_VISUAL_CAVEAT_EXT; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
379 attribs[i++] = GLX_NONE_EXT; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
380 } |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
381 #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
|
382 if (!SDL_getenv("SDL_VIDEO_X11_NODIRECTCOLOR")) { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
383 attribs[i++] = GLX_X_VISUAL_TYPE; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
384 attribs[i++] = GLX_DIRECT_COLOR; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
385 } |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
386 #endif |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
387 attribs[i++] = None; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
388 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
389 vinfo = _this->gl_data->glXChooseVisual(display, screen, attribs); |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
390 #ifdef GLX_DIRECT_COLOR |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
391 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
|
392 attribs[i - 3] = None; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
393 vinfo = _this->gl_data->glXChooseVisual(display, screen, attribs); |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
394 } |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
395 #endif |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
396 if (!vinfo) { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
397 SDL_SetError("Couldn't find matching GLX visual"); |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
398 } |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
399 return vinfo; |
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 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
402 SDL_GLContext |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
403 X11_GL_CreateContext(_THIS, SDL_Window * window) |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
404 { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
405 SDL_WindowData *data = (SDL_WindowData *) window->driverdata; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
406 Display *display = data->videodata->display; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
407 int screen = |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
408 ((SDL_DisplayData *) SDL_GetDisplayFromWindow(window)->driverdata)-> |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
409 screen; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
410 XWindowAttributes xattr; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
411 XVisualInfo v, *vinfo; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
412 int n; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
413 GLXContext context = NULL; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
414 |
1955 | 415 /* 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
|
416 XSync(display, False); |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
417 XGetWindowAttributes(display, data->window, &xattr); |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
418 v.screen = screen; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
419 v.visualid = XVisualIDFromVisual(xattr.visual); |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
420 vinfo = XGetVisualInfo(display, VisualScreenMask | VisualIDMask, &v, &n); |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
421 if (vinfo) { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
422 context = |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
423 _this->gl_data->glXCreateContext(display, vinfo, NULL, True); |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
424 XFree(vinfo); |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
425 } |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
426 XSync(display, False); |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
427 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
428 if (!context) { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
429 SDL_SetError("Could not create GL context"); |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
430 } |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
431 return (SDL_GLContext) context; |
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 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
434 int |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
435 X11_GL_MakeCurrent(_THIS, SDL_Window * window, SDL_GLContext context) |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
436 { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
437 Display *display = ((SDL_VideoData *) _this->driverdata)->display; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
438 Window drawable = |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
439 (window ? ((SDL_WindowData *) window->driverdata)->window : None); |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
440 GLXContext glx_context = (GLXContext) context; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
441 int status; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
442 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
443 status = 0; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
444 if (!_this->gl_data->glXMakeCurrent(display, drawable, glx_context)) { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
445 SDL_SetError("Unable to make GL context current"); |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
446 status = -1; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
447 } |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
448 XSync(display, False); |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
449 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
450 return (status); |
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 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
453 int |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
454 X11_GL_SetSwapInterval(_THIS, int interval) |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
455 { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
456 int status; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
457 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
458 if (_this->gl_data->glXSwapIntervalMESA) { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
459 status = _this->gl_data->glXSwapIntervalMESA(interval); |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
460 if (status != 0) { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
461 SDL_SetError("glxSwapIntervalMESA failed"); |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
462 status = -1; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
463 } |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
464 } else if (_this->gl_data->glXSwapIntervalSGI) { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
465 status = _this->gl_data->glXSwapIntervalSGI(interval); |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
466 if (status != 0) { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
467 SDL_SetError("glxSwapIntervalSGI failed"); |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
468 status = -1; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
469 } |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
470 } else { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
471 SDL_Unsupported(); |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
472 status = -1; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
473 } |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
474 return status; |
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 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
477 int |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
478 X11_GL_GetSwapInterval(_THIS) |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
479 { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
480 if (_this->gl_data->glXGetSwapIntervalMESA) { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
481 return _this->gl_data->glXGetSwapIntervalMESA(); |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
482 } else { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
483 SDL_Unsupported(); |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
484 return -1; |
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 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
488 void |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
489 X11_GL_SwapWindow(_THIS, SDL_Window * window) |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
490 { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
491 SDL_WindowData *data = (SDL_WindowData *) window->driverdata; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
492 Display *display = data->videodata->display; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
493 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
494 _this->gl_data->glXSwapBuffers(display, data->window); |
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 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
497 void |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
498 X11_GL_DeleteContext(_THIS, SDL_GLContext context) |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
499 { |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
500 Display *display = ((SDL_VideoData *) _this->driverdata)->display; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
501 GLXContext glx_context = (GLXContext) context; |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
502 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
503 _this->gl_data->glXDestroyContext(display, glx_context); |
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 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
506 #endif /* SDL_VIDEO_OPENGL_GLX */ |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
507 |
420716272158
Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
508 /* vi: set ts=4 sw=4 expandtab: */ |