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annotate src/video/quartz/SDL_QuartzGL.m @ 4383:daf9e6037596 SDL-1.2

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Gregory Smith Another one for the "How did this ever work?" file: when DX5_HandleMessage is called with WM_ACTIVATEAPP, it goes past the end of the 2-element SDL_DIdev array and if there doesn't happen to be a 0 in the memory next to it, crashes. Patch against SVN attached.
author Sam Lantinga <slouken@libsdl.org>
date Sun, 15 Nov 2009 17:21:24 +0000
parents 8d67936e32ec
children
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2009 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 Library General Public
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7 License as published by the Free Software Foundation; either
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8 version 2 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 Library 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 Library General Public
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16 License along with this library; if not, write to the Free
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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_QuartzVideo.h"
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25
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26 /*
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27 * GL_ARB_Multisample is supposed to be available in 10.1, according to Apple:
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28 *
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29 * http://developer.apple.com/graphicsimaging/opengl/extensions.html#GL_ARB_multisample
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30 *
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31 * ...but it isn't in the system headers, according to Sam:
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32 *
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33 * http://lists.libsdl.org/pipermail/sdl-libsdl.org/2003-December/039794.html
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34 *
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35 * These are normally enums and not #defines in the system headers.
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36 *
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37 * --ryan.
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38 */
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39 #if (MAC_OS_X_VERSION_MAX_ALLOWED < 1020)
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40 #define NSOpenGLPFASampleBuffers ((NSOpenGLPixelFormatAttribute) 55)
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41 #define NSOpenGLPFASamples ((NSOpenGLPixelFormatAttribute) 56)
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42 #endif
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43
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44 #ifdef __powerpc__ /* we lost this in 10.6, which has no PPC support. */
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45 @implementation NSOpenGLContext (CGLContextAccess)
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46 - (CGLContextObj) cglContext;
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47 {
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48 return _contextAuxiliary;
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49 }
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50 @end
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51 CGLContextObj QZ_GetCGLContextObj(NSOpenGLContext *nsctx)
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52 {
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53 return [nsctx cglContext];
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54 }
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55 #else
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56 CGLContextObj QZ_GetCGLContextObj(NSOpenGLContext *nsctx)
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57 {
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58 return (CGLContextObj) [nsctx CGLContextObj];
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59 }
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60 #endif
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61
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62
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63 /* OpenGL helper functions (used internally) */
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64
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65 int QZ_SetupOpenGL (_THIS, int bpp, Uint32 flags) {
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66
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67 NSOpenGLPixelFormatAttribute attr[32];
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68 NSOpenGLPixelFormat *fmt;
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69 int i = 0;
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70 int colorBits = bpp;
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71
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72 /* if a GL library hasn't been loaded at this point, load the default. */
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73 if (!this->gl_config.driver_loaded) {
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74 if (QZ_GL_LoadLibrary(this, NULL) == -1)
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75 return 0;
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76 }
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77
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78 if ( flags & SDL_FULLSCREEN ) {
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79
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80 attr[i++] = NSOpenGLPFAFullScreen;
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81 }
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82 /* In windowed mode, the OpenGL pixel depth must match device pixel depth */
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83 else if ( colorBits != device_bpp ) {
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84
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85 colorBits = device_bpp;
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86 }
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87
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88 attr[i++] = NSOpenGLPFAColorSize;
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89 attr[i++] = colorBits;
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90
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91 attr[i++] = NSOpenGLPFADepthSize;
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92 attr[i++] = this->gl_config.depth_size;
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93
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94 if ( this->gl_config.double_buffer ) {
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95 attr[i++] = NSOpenGLPFADoubleBuffer;
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96 }
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97
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98 if ( this->gl_config.stereo ) {
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99 attr[i++] = NSOpenGLPFAStereo;
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100 }
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101
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102 if ( this->gl_config.stencil_size != 0 ) {
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103 attr[i++] = NSOpenGLPFAStencilSize;
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104 attr[i++] = this->gl_config.stencil_size;
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105 }
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106
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107 if ( (this->gl_config.accum_red_size +
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108 this->gl_config.accum_green_size +
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109 this->gl_config.accum_blue_size +
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110 this->gl_config.accum_alpha_size) > 0 ) {
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111 attr[i++] = NSOpenGLPFAAccumSize;
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112 attr[i++] = this->gl_config.accum_red_size + this->gl_config.accum_green_size + this->gl_config.accum_blue_size + this->gl_config.accum_alpha_size;
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113 }
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114
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115 if ( this->gl_config.multisamplebuffers != 0 ) {
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116 attr[i++] = NSOpenGLPFASampleBuffers;
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117 attr[i++] = this->gl_config.multisamplebuffers;
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118 }
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119
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120 if ( this->gl_config.multisamplesamples != 0 ) {
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121 attr[i++] = NSOpenGLPFASamples;
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122 attr[i++] = this->gl_config.multisamplesamples;
900
c3c8739f7844 *** empty log message ***
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123 attr[i++] = NSOpenGLPFANoRecovery;
761
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124 }
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125
1737
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126 if ( this->gl_config.accelerated > 0 ) {
eacc5bc01d1c Implemented bug #5
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parents: 1736
diff changeset
127 attr[i++] = NSOpenGLPFAAccelerated;
eacc5bc01d1c Implemented bug #5
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parents: 1736
diff changeset
128 }
eacc5bc01d1c Implemented bug #5
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parents: 1736
diff changeset
129
761
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diff changeset
130 attr[i++] = NSOpenGLPFAScreenMask;
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
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parents:
diff changeset
131 attr[i++] = CGDisplayIDToOpenGLDisplayMask (display_id);
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
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parents:
diff changeset
132 attr[i] = 0;
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
133
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
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parents:
diff changeset
134 fmt = [ [ NSOpenGLPixelFormat alloc ] initWithAttributes:attr ];
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
135 if (fmt == nil) {
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
136 SDL_SetError ("Failed creating OpenGL pixel format");
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
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parents:
diff changeset
137 return 0;
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
138 }
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
139
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
140 gl_context = [ [ NSOpenGLContext alloc ] initWithFormat:fmt
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
141 shareContext:nil];
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
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parents:
diff changeset
142
1160
72c6c3e5bb85 Closed a memory leak caused when quitting video subsystem on Quartz target.
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parents: 900
diff changeset
143 [ fmt release ];
72c6c3e5bb85 Closed a memory leak caused when quitting video subsystem on Quartz target.
Ryan C. Gordon <icculus@icculus.org>
parents: 900
diff changeset
144
761
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parents:
diff changeset
145 if (gl_context == nil) {
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
146 SDL_SetError ("Failed creating OpenGL context");
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
147 return 0;
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
148 }
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
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parents:
diff changeset
149
1736
3b2a92126f4d Implemented bug #2, 117:
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parents: 1403
diff changeset
150 /* Synchronize QZ_GL_SwapBuffers() to vertical retrace.
3b2a92126f4d Implemented bug #2, 117:
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parents: 1403
diff changeset
151 * (Apple's documentation is not completely clear about what this setting
3b2a92126f4d Implemented bug #2, 117:
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
152 * exactly does, IMHO - for a detailed explanation see
3b2a92126f4d Implemented bug #2, 117:
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parents: 1403
diff changeset
153 * http://lists.apple.com/archives/mac-opengl/2006/Jan/msg00080.html )
3b2a92126f4d Implemented bug #2, 117:
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parents: 1403
diff changeset
154 */
3b2a92126f4d Implemented bug #2, 117:
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parents: 1403
diff changeset
155 if ( this->gl_config.swap_control >= 0 ) {
4370
8d67936e32ec C.W. Betts 2009-10-20 09:58:56 PDT
Sam Lantinga <slouken@libsdl.org>
parents: 4204
diff changeset
156 GLint value;
1736
3b2a92126f4d Implemented bug #2, 117:
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
157 value = this->gl_config.swap_control;
3b2a92126f4d Implemented bug #2, 117:
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parents: 1403
diff changeset
158 [ gl_context setValues: &value forParameter: NSOpenGLCPSwapInterval ];
3b2a92126f4d Implemented bug #2, 117:
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parents: 1403
diff changeset
159 }
3b2a92126f4d Implemented bug #2, 117:
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parents: 1403
diff changeset
160
761
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
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parents:
diff changeset
161 /*
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
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parents:
diff changeset
162 * Wisdom from Apple engineer in reference to UT2003's OpenGL performance:
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
163 * "You are blowing a couple of the internal OpenGL function caches. This
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
164 * appears to be happening in the VAO case. You can tell OpenGL to up
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
165 * the cache size by issuing the following calls right after you create
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
166 * the OpenGL context. The default cache size is 16." --ryan.
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
167 */
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
168
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
169 #ifndef GLI_ARRAY_FUNC_CACHE_MAX
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
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parents:
diff changeset
170 #define GLI_ARRAY_FUNC_CACHE_MAX 284
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
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parents:
diff changeset
171 #endif
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
172
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
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parents:
diff changeset
173 #ifndef GLI_SUBMIT_FUNC_CACHE_MAX
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
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parents:
diff changeset
174 #define GLI_SUBMIT_FUNC_CACHE_MAX 280
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
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parents:
diff changeset
175 #endif
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
176
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
177 {
4370
8d67936e32ec C.W. Betts 2009-10-20 09:58:56 PDT
Sam Lantinga <slouken@libsdl.org>
parents: 4204
diff changeset
178 GLint cache_max = 64;
4204
976bc19f8f6b 1.2 Quartz video: Ripped out QuickDraw and QuickTime.
Ryan C. Gordon <icculus@icculus.org>
parents: 4188
diff changeset
179 CGLContextObj ctx = QZ_GetCGLContextObj(gl_context);
761
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
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parents:
diff changeset
180 CGLSetParameter (ctx, GLI_SUBMIT_FUNC_CACHE_MAX, &cache_max);
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
181 CGLSetParameter (ctx, GLI_ARRAY_FUNC_CACHE_MAX, &cache_max);
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
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parents:
diff changeset
182 }
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
183
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
184 /* End Wisdom from Apple Engineer section. --ryan. */
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
185
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
186 return 1;
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
187 }
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
188
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
189 void QZ_TearDownOpenGL (_THIS) {
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
190
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
191 [ NSOpenGLContext clearCurrentContext ];
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
192 [ gl_context clearDrawable ];
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
193 [ gl_context release ];
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
194 }
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
195
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
196
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
197 /* SDL OpenGL functions */
1189
c96b326b90ba Moved Quartz SDL_GL_LoadLibrary() to SDL_loadso interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1181
diff changeset
198 static const char *DEFAULT_OPENGL_LIB_NAME =
c96b326b90ba Moved Quartz SDL_GL_LoadLibrary() to SDL_loadso interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1181
diff changeset
199 "/System/Library/Frameworks/OpenGL.framework/Libraries/libGL.dylib";
761
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
200
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
201 int QZ_GL_LoadLibrary (_THIS, const char *location) {
1181
49d3efec6651 Quartz driver OpenGL updates:
Ryan C. Gordon <icculus@icculus.org>
parents: 1177
diff changeset
202 if ( gl_context != NULL ) {
49d3efec6651 Quartz driver OpenGL updates:
Ryan C. Gordon <icculus@icculus.org>
parents: 1177
diff changeset
203 SDL_SetError("OpenGL context already created");
49d3efec6651 Quartz driver OpenGL updates:
Ryan C. Gordon <icculus@icculus.org>
parents: 1177
diff changeset
204 return -1;
49d3efec6651 Quartz driver OpenGL updates:
Ryan C. Gordon <icculus@icculus.org>
parents: 1177
diff changeset
205 }
49d3efec6651 Quartz driver OpenGL updates:
Ryan C. Gordon <icculus@icculus.org>
parents: 1177
diff changeset
206
1189
c96b326b90ba Moved Quartz SDL_GL_LoadLibrary() to SDL_loadso interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1181
diff changeset
207 if (opengl_library != NULL)
c96b326b90ba Moved Quartz SDL_GL_LoadLibrary() to SDL_loadso interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1181
diff changeset
208 SDL_UnloadObject(opengl_library);
1181
49d3efec6651 Quartz driver OpenGL updates:
Ryan C. Gordon <icculus@icculus.org>
parents: 1177
diff changeset
209
49d3efec6651 Quartz driver OpenGL updates:
Ryan C. Gordon <icculus@icculus.org>
parents: 1177
diff changeset
210 if (location == NULL)
1189
c96b326b90ba Moved Quartz SDL_GL_LoadLibrary() to SDL_loadso interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1181
diff changeset
211 location = DEFAULT_OPENGL_LIB_NAME;
1181
49d3efec6651 Quartz driver OpenGL updates:
Ryan C. Gordon <icculus@icculus.org>
parents: 1177
diff changeset
212
1189
c96b326b90ba Moved Quartz SDL_GL_LoadLibrary() to SDL_loadso interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1181
diff changeset
213 opengl_library = SDL_LoadObject(location);
c96b326b90ba Moved Quartz SDL_GL_LoadLibrary() to SDL_loadso interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1181
diff changeset
214 if (opengl_library != NULL) {
1181
49d3efec6651 Quartz driver OpenGL updates:
Ryan C. Gordon <icculus@icculus.org>
parents: 1177
diff changeset
215 this->gl_config.driver_loaded = 1;
49d3efec6651 Quartz driver OpenGL updates:
Ryan C. Gordon <icculus@icculus.org>
parents: 1177
diff changeset
216 return 0;
49d3efec6651 Quartz driver OpenGL updates:
Ryan C. Gordon <icculus@icculus.org>
parents: 1177
diff changeset
217 }
49d3efec6651 Quartz driver OpenGL updates:
Ryan C. Gordon <icculus@icculus.org>
parents: 1177
diff changeset
218
1189
c96b326b90ba Moved Quartz SDL_GL_LoadLibrary() to SDL_loadso interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1181
diff changeset
219 this->gl_config.driver_loaded = 0;
1181
49d3efec6651 Quartz driver OpenGL updates:
Ryan C. Gordon <icculus@icculus.org>
parents: 1177
diff changeset
220 return -1;
761
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
221 }
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
222
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
223 void* QZ_GL_GetProcAddress (_THIS, const char *proc) {
1189
c96b326b90ba Moved Quartz SDL_GL_LoadLibrary() to SDL_loadso interface.
Ryan C. Gordon <icculus@icculus.org>
parents: 1181
diff changeset
224 return SDL_LoadFunction(opengl_library, proc);
761
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
225 }
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
226
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
227 int QZ_GL_GetAttribute (_THIS, SDL_GLattr attrib, int* value) {
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
228
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
229 GLenum attr = 0;
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
230
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
231 QZ_GL_MakeCurrent (this);
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
232
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
233 switch (attrib) {
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
234 case SDL_GL_RED_SIZE: attr = GL_RED_BITS; break;
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
235 case SDL_GL_BLUE_SIZE: attr = GL_BLUE_BITS; break;
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
236 case SDL_GL_GREEN_SIZE: attr = GL_GREEN_BITS; break;
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
237 case SDL_GL_ALPHA_SIZE: attr = GL_ALPHA_BITS; break;
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
238 case SDL_GL_DOUBLEBUFFER: attr = GL_DOUBLEBUFFER; break;
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
239 case SDL_GL_DEPTH_SIZE: attr = GL_DEPTH_BITS; break;
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
240 case SDL_GL_STENCIL_SIZE: attr = GL_STENCIL_BITS; break;
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
241 case SDL_GL_ACCUM_RED_SIZE: attr = GL_ACCUM_RED_BITS; break;
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
242 case SDL_GL_ACCUM_GREEN_SIZE: attr = GL_ACCUM_GREEN_BITS; break;
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
243 case SDL_GL_ACCUM_BLUE_SIZE: attr = GL_ACCUM_BLUE_BITS; break;
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
244 case SDL_GL_ACCUM_ALPHA_SIZE: attr = GL_ACCUM_ALPHA_BITS; break;
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
245 case SDL_GL_STEREO: attr = GL_STEREO; break;
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
246 case SDL_GL_MULTISAMPLEBUFFERS: attr = GL_SAMPLE_BUFFERS_ARB; break;
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
247 case SDL_GL_MULTISAMPLESAMPLES: attr = GL_SAMPLES_ARB; break;
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
248 case SDL_GL_BUFFER_SIZE:
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
249 {
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
250 GLint bits = 0;
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
251 GLint component;
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
252
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
253 /* there doesn't seem to be a single flag in OpenGL for this! */
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
254 glGetIntegerv (GL_RED_BITS, &component); bits += component;
c5b2b6d2d1fe Date: Wed, 31 Dec 2003 21:55:30 +0100
Sam Lantinga <slouken@libsdl.org>
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255 glGetIntegerv (GL_GREEN_BITS,&component); bits += component;
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256 glGetIntegerv (GL_BLUE_BITS, &component); bits += component;
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257 glGetIntegerv (GL_ALPHA_BITS, &component); bits += component;
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258
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259 *value = bits;
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260 return 0;
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261 }
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262 case SDL_GL_ACCELERATED_VISUAL:
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263 {
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264 GLint val;
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265 /* FIXME: How do we get this information here?
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266 [fmt getValues: &val forAttribute: NSOpenGLPFAAccelerated attr forVirtualScreen: 0];
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267 */
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268 val = (this->gl_config.accelerated != 0);;
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269 *value = val;
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270 return 0;
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271 }
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272 case SDL_GL_SWAP_CONTROL:
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273 {
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274 GLint val;
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275 [ gl_context getValues: &val forParameter: NSOpenGLCPSwapInterval ];
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276 *value = val;
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277 return 0;
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278 }
761
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279 }
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280
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281 glGetIntegerv (attr, (GLint *)value);
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282 return 0;
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283 }
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284
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285 int QZ_GL_MakeCurrent (_THIS) {
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286 [ gl_context makeCurrentContext ];
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287 return 0;
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288 }
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289
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290 void QZ_GL_SwapBuffers (_THIS) {
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291 [ gl_context flushBuffer ];
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292 }