Mercurial > sdl-ios-xcode
annotate src/video/maccommon/SDL_macgl.c @ 4085:51486c979189 SDL-1.2
> Hi Ryan,
> I checked the list you linked to, but did not see any reference to whether
> the Win32 window centering bug was fixed... Has that been addressed at all?
> I refer to the bug where, unless one has globally set the
> SDL_WINDOW_CENTERED variable in the OS, only the 1st window that is created
> will be centered. Subsequent calls to SetVideoMode will create a window tha
t
> shares the same upper-left corner location.
I'm working on that now, thanks for reporting it. What I'm doing is if the
width and height are the same, I'm leaving the window position alone, but if
they're different they will respect the positioning environment variables.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Fri, 20 Jul 2007 03:25:40 +0000 |
| parents | 79e6943b5f6c |
| children | 782fd950bd46 c121d94672cb a1b03ba2fcd0 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
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3 Copyright (C) 1997-2006 Sam Lantinga |
| 0 | 4 |
| 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 |
| 0 | 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. |
| 0 | 9 |
| 10 This library is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
|
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13 Lesser General Public License for more details. |
| 0 | 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 |
| 0 | 18 |
| 19 Sam Lantinga | |
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20 slouken@libsdl.org |
| 0 | 21 */ |
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22 #include "SDL_config.h" |
| 0 | 23 |
| 24 /* AGL implementation of SDL OpenGL support */ | |
| 25 | |
| 26 #include "SDL_lowvideo.h" | |
| 27 #include "SDL_macgl_c.h" | |
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28 #include "SDL_loadso.h" |
| 0 | 29 |
| 30 | |
| 31 /* krat: adding OpenGL support */ | |
| 32 int Mac_GL_Init(_THIS) | |
| 33 { | |
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34 #if SDL_VIDEO_OPENGL |
| 0 | 35 AGLPixelFormat format; |
| 36 int i = 0; | |
| 1737 | 37 GLint attributes [ 26 ]; /* 26 is max possible in this setup */ |
| 0 | 38 GLboolean noerr; |
| 39 | |
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40 /* load the gl driver from a default path */ |
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41 if ( ! this->gl_config.driver_loaded ) { |
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42 /* no driver has been loaded, use default (ourselves) */ |
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43 if ( Mac_GL_LoadLibrary(this, NULL) < 0 ) { |
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44 return(-1); |
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45 } |
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46 } |
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47 |
| 0 | 48 attributes[i++] = AGL_RGBA; |
| 49 if ( this->gl_config.red_size != 0 && | |
| 50 this->gl_config.blue_size != 0 && | |
| 51 this->gl_config.green_size != 0 ) { | |
| 52 attributes[i++] = AGL_RED_SIZE; | |
| 53 attributes[i++] = this->gl_config.red_size; | |
| 54 attributes[i++] = AGL_GREEN_SIZE; | |
| 55 attributes[i++] = this->gl_config.green_size; | |
| 56 attributes[i++] = AGL_BLUE_SIZE; | |
| 57 attributes[i++] = this->gl_config.blue_size; | |
| 58 attributes[i++] = AGL_ALPHA_SIZE; | |
| 59 attributes[i++] = this->gl_config.alpha_size; | |
| 60 } | |
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61 if ( this->gl_config.double_buffer ) { |
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62 attributes[i++] = AGL_DOUBLEBUFFER; |
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63 } |
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64 if ( this->gl_config.depth_size != 0 ) { |
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65 attributes[i++] = AGL_DEPTH_SIZE; |
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66 attributes[i++] = this->gl_config.depth_size; |
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67 } |
| 0 | 68 if ( this->gl_config.stencil_size != 0 ) { |
| 69 attributes[i++] = AGL_STENCIL_SIZE; | |
| 70 attributes[i++] = this->gl_config.stencil_size; | |
| 71 } | |
| 72 if ( this->gl_config.accum_red_size != 0 && | |
| 73 this->gl_config.accum_blue_size != 0 && | |
| 74 this->gl_config.accum_green_size != 0 ) { | |
| 75 | |
| 76 attributes[i++] = AGL_ACCUM_RED_SIZE; | |
| 77 attributes[i++] = this->gl_config.accum_red_size; | |
| 78 attributes[i++] = AGL_ACCUM_GREEN_SIZE; | |
| 79 attributes[i++] = this->gl_config.accum_green_size; | |
| 80 attributes[i++] = AGL_ACCUM_BLUE_SIZE; | |
| 81 attributes[i++] = this->gl_config.accum_blue_size; | |
| 82 attributes[i++] = AGL_ACCUM_ALPHA_SIZE; | |
| 83 attributes[i++] = this->gl_config.accum_alpha_size; | |
| 84 } | |
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85 if ( this->gl_config.stereo ) { |
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86 attributes[i++] = AGL_STEREO; |
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87 } |
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88 #if defined(AGL_SAMPLE_BUFFERS_ARB) && defined(AGL_SAMPLES_ARB) |
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89 if ( this->gl_config.multisamplebuffers != 0 ) { |
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90 attributes[i++] = AGL_SAMPLE_BUFFERS_ARB; |
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91 attributes[i++] = this->gl_config.multisamplebuffers; |
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92 } |
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93 if ( this->gl_config.multisamplesamples != 0 ) { |
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94 attributes[i++] = AGL_SAMPLES_ARB; |
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95 attributes[i++] = this->gl_config.multisamplesamples; |
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96 } |
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97 #endif |
| 1737 | 98 if ( this->gl_config.accelerated > 0 ) { |
| 99 attributes[i++] = AGL_ACCELERATED; | |
| 100 attributes[i++] = AGL_NO_RECOVERY; | |
| 101 } | |
| 102 | |
| 0 | 103 attributes[i++] = AGL_ALL_RENDERERS; |
| 104 attributes[i] = AGL_NONE; | |
| 105 | |
| 106 format = aglChoosePixelFormat(NULL, 0, attributes); | |
| 107 if ( format == NULL ) { | |
| 108 SDL_SetError("Couldn't match OpenGL desired format"); | |
| 109 return(-1); | |
| 110 } | |
| 111 | |
| 112 glContext = aglCreateContext(format, NULL); | |
| 113 if ( glContext == NULL ) { | |
| 114 SDL_SetError("Couldn't create OpenGL context"); | |
| 115 return(-1); | |
| 116 } | |
| 117 aglDestroyPixelFormat(format); | |
| 118 | |
| 119 #if TARGET_API_MAC_CARBON | |
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120 noerr = aglSetDrawable(glContext, GetWindowPort(SDL_Window)); |
| 0 | 121 #else |
| 122 noerr = aglSetDrawable(glContext, (AGLDrawable)SDL_Window); | |
| 123 #endif | |
| 124 | |
| 125 if(!noerr) { | |
| 126 SDL_SetError("Unable to bind GL context to window"); | |
| 127 return(-1); | |
| 128 } | |
| 129 return(0); | |
| 130 #else | |
| 131 SDL_SetError("OpenGL support not configured"); | |
| 132 return(-1); | |
| 133 #endif | |
| 134 } | |
| 135 | |
| 136 void Mac_GL_Quit(_THIS) | |
| 137 { | |
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138 #if SDL_VIDEO_OPENGL |
| 0 | 139 if ( glContext != NULL ) { |
| 140 aglSetCurrentContext(NULL); | |
| 141 aglSetDrawable(glContext, NULL); | |
| 142 aglDestroyContext(glContext); | |
| 143 glContext = NULL; | |
| 144 } | |
| 145 #endif | |
| 146 } | |
| 147 | |
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148 #if SDL_VIDEO_OPENGL |
| 0 | 149 |
| 150 /* Make the current context active */ | |
| 151 int Mac_GL_MakeCurrent(_THIS) | |
| 152 { | |
| 153 int retval; | |
| 154 | |
| 155 retval = 0; | |
| 156 if( ! aglSetCurrentContext(glContext) ) { | |
| 157 SDL_SetError("Unable to make GL context current"); | |
| 158 retval = -1; | |
| 159 } | |
| 160 return(retval); | |
| 161 } | |
| 162 | |
| 163 void Mac_GL_SwapBuffers(_THIS) | |
| 164 { | |
| 165 aglSwapBuffers(glContext); | |
| 166 } | |
| 167 | |
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168 int Mac_GL_LoadLibrary(_THIS, const char *location) |
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169 { |
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170 if (location == NULL) |
| 1803 | 171 #if __MACH__ |
| 172 location = "/System/Library/Frameworks/OpenGL.framework/OpenGL"; | |
| 173 #else | |
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174 location = "OpenGLLibrary"; |
| 1803 | 175 #endif |
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176 |
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177 this->hidden->libraryHandle = SDL_LoadObject(location); |
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178 |
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179 this->gl_config.driver_loaded = 1; |
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180 return (this->hidden->libraryHandle != NULL) ? 0 : -1; |
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181 } |
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182 |
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183 void Mac_GL_UnloadLibrary(_THIS) |
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184 { |
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185 SDL_UnloadObject(this->hidden->libraryHandle); |
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186 |
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187 this->hidden->libraryHandle = NULL; |
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188 this->gl_config.driver_loaded = 0; |
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189 } |
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190 |
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191 void* Mac_GL_GetProcAddress(_THIS, const char *proc) |
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192 { |
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193 return SDL_LoadFunction( this->hidden->libraryHandle, proc ); |
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194 } |
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195 |
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196 #endif /* SDL_VIDEO_OPENGL */ |
| 0 | 197 |