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annotate src/video/cocoa/SDL_cocoaopengl.m @ 4573:6399178be313

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Completed work on X11_CreateTexture. Added lots of safety features. These include support for drawing a texture using the core protocol while other textures are drawn using Xrender if Xrender does not support the color format of the said texture or any other fault with Xrender.
author Sunny Sachanandani <sunnysachanandani@gmail.com>
date Fri, 28 May 2010 20:40:09 +0530
parents 6512cba48440
children 3d91e31fcf71
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 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_cocoavideo.h"
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25
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26 /* NSOpenGL implementation of SDL OpenGL support */
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27
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28 #if SDL_VIDEO_OPENGL_CGL
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29 #include <OpenGL/CGLTypes.h>
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30 #include <OpenGL/OpenGL.h>
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31 #include <OpenGL/CGLRenderers.h>
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32
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33 #include "SDL_loadso.h"
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34 #include "SDL_opengl.h"
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35
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36
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37 #define DEFAULT_OPENGL "/System/Library/Frameworks/OpenGL.framework/Libraries/libGL.dylib"
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38
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39 /* This is implemented in Mac OS X 10.3 and above */
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40 #if MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_3
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41 @implementation NSOpenGLContext(CGLContextAccess)
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42 - (CGLContextObj)CGLContextObj;
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43 {
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44 return _contextAuxiliary;
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45 }
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46 @end
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47 #endif /* < 10.3 */
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48
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49 int
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50 Cocoa_GL_LoadLibrary(_THIS, const char *path)
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51 {
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52 /* Load the OpenGL library */
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53 if (path == NULL) {
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54 path = SDL_getenv("SDL_OPENGL_LIBRARY");
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55 }
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56 if (path == NULL) {
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57 path = DEFAULT_OPENGL;
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58 }
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59 _this->gl_config.dll_handle = SDL_LoadObject(path);
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60 if (!_this->gl_config.dll_handle) {
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61 return -1;
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62 }
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63 SDL_strlcpy(_this->gl_config.driver_path, path,
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64 SDL_arraysize(_this->gl_config.driver_path));
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65 return 0;
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66 }
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67
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68 void *
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69 Cocoa_GL_GetProcAddress(_THIS, const char *proc)
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70 {
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71 return SDL_LoadFunction(_this->gl_config.dll_handle, proc);
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72 }
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73
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74 void
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75 Cocoa_GL_UnloadLibrary(_THIS)
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76 {
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77 SDL_UnloadObject(_this->gl_config.dll_handle);
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78 _this->gl_config.dll_handle = NULL;
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79 }
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80
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81 SDL_GLContext
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82 Cocoa_GL_CreateContext(_THIS, SDL_Window * window)
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83 {
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84 NSAutoreleasePool *pool;
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85 SDL_VideoDisplay *display = window->display;
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86 SDL_DisplayData *displaydata = (SDL_DisplayData *)display->driverdata;
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87 NSOpenGLPixelFormatAttribute attr[32];
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88 NSOpenGLPixelFormat *fmt;
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89 NSOpenGLContext *context;
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90 int i = 0;
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91
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92 pool = [[NSAutoreleasePool alloc] init];
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93
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94 if (window->flags & SDL_WINDOW_FULLSCREEN) {
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95 attr[i++] = NSOpenGLPFAFullScreen;
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96 }
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97
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98 attr[i++] = NSOpenGLPFAColorSize;
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99 attr[i++] = SDL_BYTESPERPIXEL(display->current_mode.format)*8;
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100
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101 attr[i++] = NSOpenGLPFADepthSize;
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102 attr[i++] = _this->gl_config.depth_size;
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103
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104 if (_this->gl_config.double_buffer) {
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105 attr[i++] = NSOpenGLPFADoubleBuffer;
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106 }
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107
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108 if (_this->gl_config.stereo) {
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109 attr[i++] = NSOpenGLPFAStereo;
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110 }
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111
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112 if (_this->gl_config.stencil_size) {
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113 attr[i++] = NSOpenGLPFAStencilSize;
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114 attr[i++] = _this->gl_config.stencil_size;
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115 }
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116
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117 if ((_this->gl_config.accum_red_size +
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118 _this->gl_config.accum_green_size +
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119 _this->gl_config.accum_blue_size +
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120 _this->gl_config.accum_alpha_size) > 0) {
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121 attr[i++] = NSOpenGLPFAAccumSize;
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122 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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123 }
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124
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125 if (_this->gl_config.multisamplebuffers) {
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126 attr[i++] = NSOpenGLPFASampleBuffers;
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127 attr[i++] = _this->gl_config.multisamplebuffers;
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128 }
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129
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130 if (_this->gl_config.multisamplesamples) {
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131 attr[i++] = NSOpenGLPFASamples;
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132 attr[i++] = _this->gl_config.multisamplesamples;
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133 attr[i++] = NSOpenGLPFANoRecovery;
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134 }
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135
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136 if (_this->gl_config.accelerated >= 0) {
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137 if (_this->gl_config.accelerated) {
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138 attr[i++] = NSOpenGLPFAAccelerated;
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139 } else {
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140 attr[i++] = NSOpenGLPFARendererID;
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141 attr[i++] = kCGLRendererGenericFloatID;
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142 }
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143 }
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
144
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
145 attr[i++] = NSOpenGLPFAScreenMask;
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
146 attr[i++] = CGDisplayIDToOpenGLDisplayMask(displaydata->display);
83946ee0ff1f Implemented OpenGL support on Mac OS X
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parents:
diff changeset
147 attr[i] = 0;
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
148
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
149 fmt = [[NSOpenGLPixelFormat alloc] initWithAttributes:attr];
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
150 if (fmt == nil) {
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
151 SDL_SetError ("Failed creating OpenGL pixel format");
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
152 [pool release];
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
153 return NULL;
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
154 }
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
155
2178
114a541cfae2 Creating a context makes it current, per the documentation.
Sam Lantinga <slouken@libsdl.org>
parents: 1973
diff changeset
156 context = [[NSOpenGLContext alloc] initWithFormat:fmt shareContext:nil];
1936
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
157
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
158 [fmt release];
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
159
2178
114a541cfae2 Creating a context makes it current, per the documentation.
Sam Lantinga <slouken@libsdl.org>
parents: 1973
diff changeset
160 if (context == nil) {
1936
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
161 SDL_SetError ("Failed creating OpenGL context");
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
162 [pool release];
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
163 return NULL;
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
164 }
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
165
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
166 /*
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
167 * Wisdom from Apple engineer in reference to UT2003's OpenGL performance:
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
168 * "You are blowing a couple of the internal OpenGL function caches. This
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
169 * appears to be happening in the VAO case. You can tell OpenGL to up
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
170 * the cache size by issuing the following calls right after you create
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
171 * the OpenGL context. The default cache size is 16." --ryan.
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
172 */
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parents:
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173
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
174 #ifndef GLI_ARRAY_FUNC_CACHE_MAX
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
175 #define GLI_ARRAY_FUNC_CACHE_MAX 284
83946ee0ff1f Implemented OpenGL support on Mac OS X
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parents:
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176 #endif
83946ee0ff1f Implemented OpenGL support on Mac OS X
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parents:
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177
83946ee0ff1f Implemented OpenGL support on Mac OS X
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parents:
diff changeset
178 #ifndef GLI_SUBMIT_FUNC_CACHE_MAX
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
179 #define GLI_SUBMIT_FUNC_CACHE_MAX 280
83946ee0ff1f Implemented OpenGL support on Mac OS X
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parents:
diff changeset
180 #endif
83946ee0ff1f Implemented OpenGL support on Mac OS X
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parents:
diff changeset
181
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
182 {
83946ee0ff1f Implemented OpenGL support on Mac OS X
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parents:
diff changeset
183 long cache_max = 64;
2178
114a541cfae2 Creating a context makes it current, per the documentation.
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parents: 1973
diff changeset
184 CGLContextObj ctx = [context CGLContextObj];
1936
83946ee0ff1f Implemented OpenGL support on Mac OS X
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parents:
diff changeset
185 CGLSetParameter (ctx, GLI_SUBMIT_FUNC_CACHE_MAX, &cache_max);
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
186 CGLSetParameter (ctx, GLI_ARRAY_FUNC_CACHE_MAX, &cache_max);
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
187 }
83946ee0ff1f Implemented OpenGL support on Mac OS X
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parents:
diff changeset
188
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parents:
diff changeset
189 /* End Wisdom from Apple Engineer section. --ryan. */
83946ee0ff1f Implemented OpenGL support on Mac OS X
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parents:
diff changeset
190
83946ee0ff1f Implemented OpenGL support on Mac OS X
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parents:
diff changeset
191 [pool release];
2178
114a541cfae2 Creating a context makes it current, per the documentation.
Sam Lantinga <slouken@libsdl.org>
parents: 1973
diff changeset
192
114a541cfae2 Creating a context makes it current, per the documentation.
Sam Lantinga <slouken@libsdl.org>
parents: 1973
diff changeset
193 if ( Cocoa_GL_MakeCurrent(_this, window, context) < 0 ) {
114a541cfae2 Creating a context makes it current, per the documentation.
Sam Lantinga <slouken@libsdl.org>
parents: 1973
diff changeset
194 Cocoa_GL_DeleteContext(_this, context);
114a541cfae2 Creating a context makes it current, per the documentation.
Sam Lantinga <slouken@libsdl.org>
parents: 1973
diff changeset
195 return NULL;
114a541cfae2 Creating a context makes it current, per the documentation.
Sam Lantinga <slouken@libsdl.org>
parents: 1973
diff changeset
196 }
114a541cfae2 Creating a context makes it current, per the documentation.
Sam Lantinga <slouken@libsdl.org>
parents: 1973
diff changeset
197
114a541cfae2 Creating a context makes it current, per the documentation.
Sam Lantinga <slouken@libsdl.org>
parents: 1973
diff changeset
198 return context;
1936
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
199 }
83946ee0ff1f Implemented OpenGL support on Mac OS X
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parents:
diff changeset
200
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
201 int
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
202 Cocoa_GL_MakeCurrent(_THIS, SDL_Window * window, SDL_GLContext context)
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
203 {
83946ee0ff1f Implemented OpenGL support on Mac OS X
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parents:
diff changeset
204 NSAutoreleasePool *pool;
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
205
83946ee0ff1f Implemented OpenGL support on Mac OS X
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parents:
diff changeset
206 pool = [[NSAutoreleasePool alloc] init];
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
207
83946ee0ff1f Implemented OpenGL support on Mac OS X
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parents:
diff changeset
208 if (context) {
83946ee0ff1f Implemented OpenGL support on Mac OS X
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parents:
diff changeset
209 SDL_WindowData *windowdata = (SDL_WindowData *)window->driverdata;
83946ee0ff1f Implemented OpenGL support on Mac OS X
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parents:
diff changeset
210 NSOpenGLContext *nscontext = (NSOpenGLContext *)context;
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
211
1973
81255f93dfcd Fixed fullscreen modes with Cocoa video driver.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
212 if (window->flags & SDL_WINDOW_FULLSCREEN) {
81255f93dfcd Fixed fullscreen modes with Cocoa video driver.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
213 [nscontext setFullScreen];
81255f93dfcd Fixed fullscreen modes with Cocoa video driver.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
214 } else {
3688
6512cba48440 Fixed Cocoa and OpenGL builds
Sam Lantinga <slouken@libsdl.org>
parents: 3685
diff changeset
215 [nscontext setView:[windowdata->nswindow contentView]];
1973
81255f93dfcd Fixed fullscreen modes with Cocoa video driver.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
216 [nscontext update];
81255f93dfcd Fixed fullscreen modes with Cocoa video driver.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
217 }
1936
83946ee0ff1f Implemented OpenGL support on Mac OS X
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parents:
diff changeset
218 [nscontext makeCurrentContext];
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
219 } else {
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
220 [NSOpenGLContext clearCurrentContext];
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
221 }
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
222
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parents:
diff changeset
223 [pool release];
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
224 return 0;
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
225 }
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
226
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
227 int
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
228 Cocoa_GL_SetSwapInterval(_THIS, int interval)
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
229 {
83946ee0ff1f Implemented OpenGL support on Mac OS X
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parents:
diff changeset
230 NSAutoreleasePool *pool;
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
231 NSOpenGLContext *nscontext;
2703
18a472b6d745 Fixed compiler warning
Sam Lantinga <slouken@libsdl.org>
parents: 2178
diff changeset
232 GLint value;
1936
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
233 int status;
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
234
83946ee0ff1f Implemented OpenGL support on Mac OS X
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parents:
diff changeset
235 pool = [[NSAutoreleasePool alloc] init];
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
236
83946ee0ff1f Implemented OpenGL support on Mac OS X
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parents:
diff changeset
237 nscontext = [NSOpenGLContext currentContext];
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
238 if (nscontext != nil) {
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
239 value = interval;
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
240 [nscontext setValues:&value forParameter:NSOpenGLCPSwapInterval];
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
241 status = 0;
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
242 } else {
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
243 SDL_SetError("No current OpenGL context");
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
244 status = -1;
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
245 }
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
246
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
247 [pool release];
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
248 return status;
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
249 }
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
250
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
251 int
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
252 Cocoa_GL_GetSwapInterval(_THIS)
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
253 {
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
254 NSAutoreleasePool *pool;
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
255 NSOpenGLContext *nscontext;
2703
18a472b6d745 Fixed compiler warning
Sam Lantinga <slouken@libsdl.org>
parents: 2178
diff changeset
256 GLint value;
1936
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
257 int status;
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
258
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
259 pool = [[NSAutoreleasePool alloc] init];
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
260
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
261 nscontext = [NSOpenGLContext currentContext];
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
262 if (nscontext != nil) {
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
263 [nscontext getValues:&value forParameter:NSOpenGLCPSwapInterval];
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
264 status = (int)value;
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
265 } else {
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
266 SDL_SetError("No current OpenGL context");
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
267 status = -1;
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
268 }
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
269
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
270 [pool release];
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
271 return status;
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
272 }
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
273
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
274 void
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
275 Cocoa_GL_SwapWindow(_THIS, SDL_Window * window)
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
276 {
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
277 NSAutoreleasePool *pool;
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
278 NSOpenGLContext *nscontext;
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
279
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
280 pool = [[NSAutoreleasePool alloc] init];
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
281
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
282 /* FIXME: Do we need to get the context for the window? */
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
283 nscontext = [NSOpenGLContext currentContext];
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
284 if (nscontext != nil) {
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
285 [nscontext flushBuffer];
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
286 }
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
287
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
288 [pool release];
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
289 }
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
290
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
291 void
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
292 Cocoa_GL_DeleteContext(_THIS, SDL_GLContext context)
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
293 {
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
294 NSAutoreleasePool *pool;
83946ee0ff1f Implemented OpenGL support on Mac OS X
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
295 NSOpenGLContext *nscontext = (NSOpenGLContext *)context;
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296
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297 pool = [[NSAutoreleasePool alloc] init];
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298
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299 [nscontext clearDrawable];
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300 [nscontext release];
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301
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302 [pool release];
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303 }
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304
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305 #endif /* SDL_VIDEO_OPENGL_CGL */
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306
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307 /* vi: set ts=4 sw=4 expandtab: */