Mercurial > sdl-ios-xcode
annotate src/video/cocoa/SDL_cocoaopengl.m @ 3168:6338b7f2d024
Hi,
I have prepared a set of patches to readd WindowsCE support to SDL 1.3.
I've created a new GAPI/Rawframebuffer and a DirectDraw renderer.
Both renderers are work in progress and there are several unimplemented
cases. (Notably
RenderLine/RenderPoint/RenderFill/QueryTexturePixels/UpdateTexture and
texture blending )
Nevertheless I am successfully using these renderers together with the
SDL software renderer. (On most devices the SDL software renderer will
be much faster as there are only badly optimized vendor drivers available)
I send these patches now in this unpolished state because there seems to
be some interest in win ce and someone has to start supporting SDL 1.3
Now on to the patches:
wince_events_window_fixes.patch
fixes some wince incompatibilities and adds fullscreen support via
SHFullScreen. NOTE: This patch shouldn't have any side effects on
Windows, but I have NOT tested it on Windows, so please double-check.
This patch doesn't dependent on the following ones.
wince_renderers_system.patch
This patch does all necessary modifications to the SDL system.
- it adds the renderers to the configure system
- it adds the renderers to win32video
SDL_ceddrawrender.c
SDL_ceddrawrender.h
SDL_gapirender_c.h
SDL_gapirender.c
SDL_gapirender.h
these files add the new render drivers and should be placed in
src/video/win32
Some notes to people who want to test this:
- I have only compiled sdl with ming32ce, so the VisualC files are not
up to date
- As mingw32ce has no ddraw.h this file must be taken from the MS SDK
and modified to work with gcc
- I had to modify line 2611 in configure.in to
EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lcoredll -lcommctrl -lmmtimer
-Wl,--image-base -Wl,0x10000"
otherwise GetCPinfo wouldn't link. If someone knows whats causing this
I'd be happy to hear about it.
It would be great if these patches could make their way into SVN as this
would make collaboration much much easier.
I'm out of office for the next week and therefore will be unavailable
via email.
Regards
Stefan
author | Sam Lantinga <slouken@libsdl.org> |
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date | Sun, 07 Jun 2009 02:44:46 +0000 |
parents | 089a77aebb7d |
children | 7812d3e9564e |
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1 /* |
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2 SDL - Simple DirectMedia Layer |
2859 | 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 |
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32 #include "SDL_loadso.h" |
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33 #include "SDL_opengl.h" |
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34 |
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35 |
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36 #define DEFAULT_OPENGL "/System/Library/Frameworks/OpenGL.framework/Libraries/libGL.dylib" |
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37 |
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38 /* This is implemented in Mac OS X 10.3 and above */ |
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39 #if MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_3 |
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40 @implementation NSOpenGLContext(CGLContextAccess) |
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41 - (CGLContextObj)CGLContextObj; |
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42 { |
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43 return _contextAuxiliary; |
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44 } |
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45 @end |
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46 #endif /* < 10.3 */ |
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47 |
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48 int |
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49 Cocoa_GL_LoadLibrary(_THIS, const char *path) |
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50 { |
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51 /* Load the OpenGL library */ |
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52 if (path == NULL) { |
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53 path = SDL_getenv("SDL_OPENGL_LIBRARY"); |
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54 } |
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55 if (path == NULL) { |
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56 path = DEFAULT_OPENGL; |
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57 } |
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58 _this->gl_config.dll_handle = SDL_LoadObject(path); |
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59 if (!_this->gl_config.dll_handle) { |
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60 return -1; |
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61 } |
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62 SDL_strlcpy(_this->gl_config.driver_path, path, |
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63 SDL_arraysize(_this->gl_config.driver_path)); |
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64 return 0; |
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65 } |
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66 |
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67 void * |
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68 Cocoa_GL_GetProcAddress(_THIS, const char *proc) |
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69 { |
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70 return SDL_LoadFunction(_this->gl_config.dll_handle, proc); |
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71 } |
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72 |
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73 void |
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74 Cocoa_GL_UnloadLibrary(_THIS) |
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75 { |
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76 SDL_UnloadObject(_this->gl_config.dll_handle); |
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77 _this->gl_config.dll_handle = NULL; |
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78 } |
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79 |
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80 SDL_GLContext |
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81 Cocoa_GL_CreateContext(_THIS, SDL_Window * window) |
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82 { |
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83 NSAutoreleasePool *pool; |
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84 SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window); |
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85 SDL_DisplayData *displaydata = (SDL_DisplayData *)display->driverdata; |
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86 NSOpenGLPixelFormatAttribute attr[32]; |
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87 NSOpenGLPixelFormat *fmt; |
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88 NSOpenGLContext *context; |
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89 int i = 0; |
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90 |
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91 pool = [[NSAutoreleasePool alloc] init]; |
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92 |
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93 if (window->flags & SDL_WINDOW_FULLSCREEN) { |
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94 attr[i++] = NSOpenGLPFAFullScreen; |
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95 } |
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96 |
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97 attr[i++] = NSOpenGLPFAColorSize; |
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98 attr[i++] = SDL_BYTESPERPIXEL(display->current_mode.format)*8; |
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99 |
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100 attr[i++] = NSOpenGLPFADepthSize; |
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101 attr[i++] = _this->gl_config.depth_size; |
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102 |
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103 if (_this->gl_config.double_buffer) { |
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104 attr[i++] = NSOpenGLPFADoubleBuffer; |
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105 } |
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106 |
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107 if (_this->gl_config.stereo) { |
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108 attr[i++] = NSOpenGLPFAStereo; |
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109 } |
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110 |
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111 if (_this->gl_config.stencil_size) { |
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112 attr[i++] = NSOpenGLPFAStencilSize; |
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113 attr[i++] = _this->gl_config.stencil_size; |
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114 } |
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115 |
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116 if ((_this->gl_config.accum_red_size + |
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117 _this->gl_config.accum_green_size + |
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118 _this->gl_config.accum_blue_size + |
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119 _this->gl_config.accum_alpha_size) > 0) { |
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120 attr[i++] = NSOpenGLPFAAccumSize; |
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121 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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122 } |
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123 |
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124 if (_this->gl_config.multisamplebuffers) { |
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125 attr[i++] = NSOpenGLPFASampleBuffers; |
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126 attr[i++] = _this->gl_config.multisamplebuffers; |
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127 } |
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128 |
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129 if (_this->gl_config.multisamplesamples) { |
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130 attr[i++] = NSOpenGLPFASamples; |
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131 attr[i++] = _this->gl_config.multisamplesamples; |
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132 attr[i++] = NSOpenGLPFANoRecovery; |
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133 } |
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134 |
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135 if (_this->gl_config.accelerated > 0) { |
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136 attr[i++] = NSOpenGLPFAAccelerated; |
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137 } |
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138 |
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139 attr[i++] = NSOpenGLPFAScreenMask; |
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140 attr[i++] = CGDisplayIDToOpenGLDisplayMask(displaydata->display); |
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141 attr[i] = 0; |
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142 |
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143 fmt = [[NSOpenGLPixelFormat alloc] initWithAttributes:attr]; |
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144 if (fmt == nil) { |
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145 SDL_SetError ("Failed creating OpenGL pixel format"); |
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146 [pool release]; |
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147 return NULL; |
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148 } |
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149 |
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150 context = [[NSOpenGLContext alloc] initWithFormat:fmt shareContext:nil]; |
1936
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151 |
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152 [fmt release]; |
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153 |
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154 if (context == nil) { |
1936
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155 SDL_SetError ("Failed creating OpenGL context"); |
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156 [pool release]; |
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157 return NULL; |
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158 } |
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159 |
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160 /* |
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161 * Wisdom from Apple engineer in reference to UT2003's OpenGL performance: |
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162 * "You are blowing a couple of the internal OpenGL function caches. This |
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163 * appears to be happening in the VAO case. You can tell OpenGL to up |
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164 * the cache size by issuing the following calls right after you create |
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165 * the OpenGL context. The default cache size is 16." --ryan. |
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166 */ |
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167 |
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168 #ifndef GLI_ARRAY_FUNC_CACHE_MAX |
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169 #define GLI_ARRAY_FUNC_CACHE_MAX 284 |
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170 #endif |
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171 |
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172 #ifndef GLI_SUBMIT_FUNC_CACHE_MAX |
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173 #define GLI_SUBMIT_FUNC_CACHE_MAX 280 |
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174 #endif |
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175 |
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176 { |
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177 long cache_max = 64; |
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178 CGLContextObj ctx = [context CGLContextObj]; |
1936
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179 CGLSetParameter (ctx, GLI_SUBMIT_FUNC_CACHE_MAX, &cache_max); |
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180 CGLSetParameter (ctx, GLI_ARRAY_FUNC_CACHE_MAX, &cache_max); |
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181 } |
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182 |
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183 /* End Wisdom from Apple Engineer section. --ryan. */ |
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184 |
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185 [pool release]; |
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186 |
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187 if ( Cocoa_GL_MakeCurrent(_this, window, context) < 0 ) { |
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188 Cocoa_GL_DeleteContext(_this, context); |
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189 return NULL; |
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|
190 } |
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191 |
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192 return context; |
1936
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193 } |
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194 |
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195 int |
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196 Cocoa_GL_MakeCurrent(_THIS, SDL_Window * window, SDL_GLContext context) |
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197 { |
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198 NSAutoreleasePool *pool; |
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199 |
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200 pool = [[NSAutoreleasePool alloc] init]; |
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201 |
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202 if (context) { |
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203 SDL_WindowData *windowdata = (SDL_WindowData *)window->driverdata; |
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204 NSOpenGLContext *nscontext = (NSOpenGLContext *)context; |
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205 |
1973
81255f93dfcd
Fixed fullscreen modes with Cocoa video driver.
Sam Lantinga <slouken@libsdl.org>
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1970
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|
206 if (window->flags & SDL_WINDOW_FULLSCREEN) { |
81255f93dfcd
Fixed fullscreen modes with Cocoa video driver.
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1970
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|
207 [nscontext setFullScreen]; |
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Fixed fullscreen modes with Cocoa video driver.
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1970
diff
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|
208 } else { |
81255f93dfcd
Fixed fullscreen modes with Cocoa video driver.
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209 [nscontext setView:[windowdata->window contentView]]; |
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Fixed fullscreen modes with Cocoa video driver.
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1970
diff
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210 [nscontext update]; |
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Fixed fullscreen modes with Cocoa video driver.
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1970
diff
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|
211 } |
1936
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212 [nscontext makeCurrentContext]; |
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213 } else { |
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214 [NSOpenGLContext clearCurrentContext]; |
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|
215 } |
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216 |
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|
217 [pool release]; |
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218 return 0; |
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|
219 } |
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220 |
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221 int |
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222 Cocoa_GL_SetSwapInterval(_THIS, int interval) |
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223 { |
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224 NSAutoreleasePool *pool; |
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225 NSOpenGLContext *nscontext; |
2703 | 226 GLint value; |
1936
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227 int status; |
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228 |
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229 pool = [[NSAutoreleasePool alloc] init]; |
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230 |
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|
231 nscontext = [NSOpenGLContext currentContext]; |
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|
232 if (nscontext != nil) { |
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233 value = interval; |
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234 [nscontext setValues:&value forParameter:NSOpenGLCPSwapInterval]; |
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235 status = 0; |
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|
236 } else { |
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|
237 SDL_SetError("No current OpenGL context"); |
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238 status = -1; |
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|
239 } |
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|
240 |
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|
241 [pool release]; |
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242 return status; |
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|
243 } |
83946ee0ff1f
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|
244 |
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245 int |
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|
246 Cocoa_GL_GetSwapInterval(_THIS) |
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247 { |
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|
248 NSAutoreleasePool *pool; |
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249 NSOpenGLContext *nscontext; |
2703 | 250 GLint value; |
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251 int status; |
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252 |
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253 pool = [[NSAutoreleasePool alloc] init]; |
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254 |
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255 nscontext = [NSOpenGLContext currentContext]; |
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256 if (nscontext != nil) { |
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257 [nscontext getValues:&value forParameter:NSOpenGLCPSwapInterval]; |
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258 status = (int)value; |
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259 } else { |
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260 SDL_SetError("No current OpenGL context"); |
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261 status = -1; |
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262 } |
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263 |
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264 [pool release]; |
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265 return status; |
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266 } |
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267 |
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268 void |
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269 Cocoa_GL_SwapWindow(_THIS, SDL_Window * window) |
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270 { |
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271 NSAutoreleasePool *pool; |
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272 NSOpenGLContext *nscontext; |
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273 |
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274 pool = [[NSAutoreleasePool alloc] init]; |
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275 |
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276 /* FIXME: Do we need to get the context for the window? */ |
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277 nscontext = [NSOpenGLContext currentContext]; |
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278 if (nscontext != nil) { |
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279 [nscontext flushBuffer]; |
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280 } |
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281 |
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282 [pool release]; |
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283 } |
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284 |
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285 void |
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286 Cocoa_GL_DeleteContext(_THIS, SDL_GLContext context) |
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287 { |
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288 NSAutoreleasePool *pool; |
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289 NSOpenGLContext *nscontext = (NSOpenGLContext *)context; |
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290 |
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291 pool = [[NSAutoreleasePool alloc] init]; |
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292 |
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293 [nscontext clearDrawable]; |
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294 [nscontext release]; |
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295 |
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296 [pool release]; |
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297 } |
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298 |
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299 #endif /* SDL_VIDEO_OPENGL_CGL */ |
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300 |
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301 /* vi: set ts=4 sw=4 expandtab: */ |