Mercurial > sdl-ios-xcode
annotate src/video/maccommon/SDL_macgl.c @ 769:b8d311d90021
Updated copyright information for 2004 (Happy New Year!)
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sun, 04 Jan 2004 16:49:27 +0000 |
| parents | a33b7819b917 |
| children | 0c3e00cc9580 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
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b8d311d90021
Updated copyright information for 2004 (Happy New Year!)
Sam Lantinga <slouken@libsdl.org>
parents:
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3 Copyright (C) 1997-2004 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
| 6 modify it under the terms of the GNU Library General Public | |
| 7 License as published by the Free Software Foundation; either | |
| 8 version 2 of the License, or (at your option) any later version. | |
| 9 | |
| 10 This library is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 Library General Public License for more details. | |
| 14 | |
| 15 You should have received a copy of the GNU Library General Public | |
| 16 License along with this library; if not, write to the Free | |
| 17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 18 | |
| 19 Sam Lantinga | |
|
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20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
| 23 #ifdef SAVE_RCSID | |
| 24 static char rcsid = | |
| 25 "@(#) $Id$"; | |
| 26 #endif | |
| 27 | |
| 28 /* AGL implementation of SDL OpenGL support */ | |
| 29 | |
| 30 #include "SDL_error.h" | |
| 31 #include "SDL_lowvideo.h" | |
| 32 #include "SDL_macgl_c.h" | |
| 33 | |
| 34 | |
| 35 /* krat: adding OpenGL support */ | |
| 36 int Mac_GL_Init(_THIS) | |
| 37 { | |
| 38 #ifdef HAVE_OPENGL | |
| 39 AGLPixelFormat format; | |
| 40 int i = 0; | |
| 41 GLint attributes [ 24 ]; /* 24 is max possible in this setup */ | |
| 42 GLboolean noerr; | |
| 43 | |
| 44 attributes[i++] = AGL_RGBA; | |
| 45 if ( this->gl_config.red_size != 0 && | |
| 46 this->gl_config.blue_size != 0 && | |
| 47 this->gl_config.green_size != 0 ) { | |
| 48 attributes[i++] = AGL_RED_SIZE; | |
| 49 attributes[i++] = this->gl_config.red_size; | |
| 50 attributes[i++] = AGL_GREEN_SIZE; | |
| 51 attributes[i++] = this->gl_config.green_size; | |
| 52 attributes[i++] = AGL_BLUE_SIZE; | |
| 53 attributes[i++] = this->gl_config.blue_size; | |
| 54 attributes[i++] = AGL_ALPHA_SIZE; | |
| 55 attributes[i++] = this->gl_config.alpha_size; | |
| 56 } | |
|
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57 if ( this->gl_config.double_buffer ) { |
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58 attributes[i++] = AGL_DOUBLEBUFFER; |
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59 } |
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60 if ( this->gl_config.depth_size != 0 ) { |
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61 attributes[i++] = AGL_DEPTH_SIZE; |
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62 attributes[i++] = this->gl_config.depth_size; |
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63 } |
| 0 | 64 if ( this->gl_config.stencil_size != 0 ) { |
| 65 attributes[i++] = AGL_STENCIL_SIZE; | |
| 66 attributes[i++] = this->gl_config.stencil_size; | |
| 67 } | |
| 68 if ( this->gl_config.accum_red_size != 0 && | |
| 69 this->gl_config.accum_blue_size != 0 && | |
| 70 this->gl_config.accum_green_size != 0 ) { | |
| 71 | |
| 72 attributes[i++] = AGL_ACCUM_RED_SIZE; | |
| 73 attributes[i++] = this->gl_config.accum_red_size; | |
| 74 attributes[i++] = AGL_ACCUM_GREEN_SIZE; | |
| 75 attributes[i++] = this->gl_config.accum_green_size; | |
| 76 attributes[i++] = AGL_ACCUM_BLUE_SIZE; | |
| 77 attributes[i++] = this->gl_config.accum_blue_size; | |
| 78 attributes[i++] = AGL_ACCUM_ALPHA_SIZE; | |
| 79 attributes[i++] = this->gl_config.accum_alpha_size; | |
| 80 } | |
|
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81 if ( this->gl_config.stereo ) { |
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82 attributes[i++] = AGL_STEREO; |
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83 } |
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84 #if defined(AGL_SAMPLE_BUFFERS_ARB) && defined(AGL_SAMPLES_ARB) |
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85 if ( this->gl_config.multisamplebuffers != 0 ) { |
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86 attributes[i++] = AGL_SAMPLE_BUFFERS_ARB; |
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87 attributes[i++] = this->gl_config.multisamplebuffers; |
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88 } |
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89 if ( this->gl_config.multisamplesamples != 0 ) { |
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90 attributes[i++] = AGL_SAMPLES_ARB; |
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91 attributes[i++] = this->gl_config.multisamplesamples; |
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92 } |
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93 #endif |
| 0 | 94 attributes[i++] = AGL_ALL_RENDERERS; |
| 95 attributes[i] = AGL_NONE; | |
| 96 | |
| 97 format = aglChoosePixelFormat(NULL, 0, attributes); | |
| 98 if ( format == NULL ) { | |
| 99 SDL_SetError("Couldn't match OpenGL desired format"); | |
| 100 return(-1); | |
| 101 } | |
| 102 | |
| 103 glContext = aglCreateContext(format, NULL); | |
| 104 if ( glContext == NULL ) { | |
| 105 SDL_SetError("Couldn't create OpenGL context"); | |
| 106 return(-1); | |
| 107 } | |
| 108 aglDestroyPixelFormat(format); | |
| 109 | |
| 110 #if TARGET_API_MAC_CARBON | |
| 111 noerr = aglSetDrawable(glContext, GetWindowPort(SDL_Window)); | |
| 112 #else | |
| 113 noerr = aglSetDrawable(glContext, (AGLDrawable)SDL_Window); | |
| 114 #endif | |
| 115 | |
| 116 if(!noerr) { | |
| 117 SDL_SetError("Unable to bind GL context to window"); | |
| 118 return(-1); | |
| 119 } | |
| 120 return(0); | |
| 121 #else | |
| 122 SDL_SetError("OpenGL support not configured"); | |
| 123 return(-1); | |
| 124 #endif | |
| 125 } | |
| 126 | |
| 127 void Mac_GL_Quit(_THIS) | |
| 128 { | |
| 129 #ifdef HAVE_OPENGL | |
| 130 if ( glContext != NULL ) { | |
| 131 aglSetCurrentContext(NULL); | |
| 132 aglSetDrawable(glContext, NULL); | |
| 133 aglDestroyContext(glContext); | |
| 134 glContext = NULL; | |
| 135 } | |
| 136 #endif | |
| 137 } | |
| 138 | |
| 139 #ifdef HAVE_OPENGL | |
| 140 | |
| 141 /* Make the current context active */ | |
| 142 int Mac_GL_MakeCurrent(_THIS) | |
| 143 { | |
| 144 int retval; | |
| 145 | |
| 146 retval = 0; | |
| 147 if( ! aglSetCurrentContext(glContext) ) { | |
| 148 SDL_SetError("Unable to make GL context current"); | |
| 149 retval = -1; | |
| 150 } | |
| 151 return(retval); | |
| 152 } | |
| 153 | |
| 154 void Mac_GL_SwapBuffers(_THIS) | |
| 155 { | |
| 156 aglSwapBuffers(glContext); | |
| 157 } | |
| 158 | |
| 159 #endif /* HAVE_OPENGL */ | |
| 160 |