Mercurial > sdl-ios-xcode
annotate src/video/maccommon/SDL_macgl.c @ 816:428f688f2ad2
Date: Fri, 13 Feb 2004 17:03:16 +0100
From: Max Horn
Subject: Modifier key fix
The internal modifier state can get out of sync with reality. To
trigger this, do for example this:
1) Launch an SDL app
2) Alt-click on the desktop (this will hide the SDL app).
3) Bring the SDL app back to the front
4) SDL will still think alt is pressed (and as such will treat left
clicks like middle clicks). If you press and release alt, it'll be fine
again.
The attached patch cures this by rechecking the modifier state whenever
we process an event.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Fri, 13 Feb 2004 17:57:16 +0000 |
| parents | 0c3e00cc9580 |
| children | c9b51268668f |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
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3 Copyright (C) 1997-2004 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
| 6 modify it under the terms of the GNU Library General Public | |
| 7 License as published by the Free Software Foundation; either | |
| 8 version 2 of the License, or (at your option) any later version. | |
| 9 | |
| 10 This library is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 Library General Public License for more details. | |
| 14 | |
| 15 You should have received a copy of the GNU Library General Public | |
| 16 License along with this library; if not, write to the Free | |
| 17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 18 | |
| 19 Sam Lantinga | |
|
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20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
| 23 #ifdef SAVE_RCSID | |
| 24 static char rcsid = | |
| 25 "@(#) $Id$"; | |
| 26 #endif | |
| 27 | |
| 28 /* AGL implementation of SDL OpenGL support */ | |
| 29 | |
| 30 #include "SDL_error.h" | |
| 31 #include "SDL_lowvideo.h" | |
| 32 #include "SDL_macgl_c.h" | |
|
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33 #include "SDL_loadso.h" |
| 0 | 34 |
| 35 | |
| 36 /* krat: adding OpenGL support */ | |
| 37 int Mac_GL_Init(_THIS) | |
| 38 { | |
| 39 #ifdef HAVE_OPENGL | |
| 40 AGLPixelFormat format; | |
| 41 int i = 0; | |
| 42 GLint attributes [ 24 ]; /* 24 is max possible in this setup */ | |
| 43 GLboolean noerr; | |
| 44 | |
| 45 attributes[i++] = AGL_RGBA; | |
| 46 if ( this->gl_config.red_size != 0 && | |
| 47 this->gl_config.blue_size != 0 && | |
| 48 this->gl_config.green_size != 0 ) { | |
| 49 attributes[i++] = AGL_RED_SIZE; | |
| 50 attributes[i++] = this->gl_config.red_size; | |
| 51 attributes[i++] = AGL_GREEN_SIZE; | |
| 52 attributes[i++] = this->gl_config.green_size; | |
| 53 attributes[i++] = AGL_BLUE_SIZE; | |
| 54 attributes[i++] = this->gl_config.blue_size; | |
| 55 attributes[i++] = AGL_ALPHA_SIZE; | |
| 56 attributes[i++] = this->gl_config.alpha_size; | |
| 57 } | |
|
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58 if ( this->gl_config.double_buffer ) { |
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59 attributes[i++] = AGL_DOUBLEBUFFER; |
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60 } |
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61 if ( this->gl_config.depth_size != 0 ) { |
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62 attributes[i++] = AGL_DEPTH_SIZE; |
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63 attributes[i++] = this->gl_config.depth_size; |
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64 } |
| 0 | 65 if ( this->gl_config.stencil_size != 0 ) { |
| 66 attributes[i++] = AGL_STENCIL_SIZE; | |
| 67 attributes[i++] = this->gl_config.stencil_size; | |
| 68 } | |
| 69 if ( this->gl_config.accum_red_size != 0 && | |
| 70 this->gl_config.accum_blue_size != 0 && | |
| 71 this->gl_config.accum_green_size != 0 ) { | |
| 72 | |
| 73 attributes[i++] = AGL_ACCUM_RED_SIZE; | |
| 74 attributes[i++] = this->gl_config.accum_red_size; | |
| 75 attributes[i++] = AGL_ACCUM_GREEN_SIZE; | |
| 76 attributes[i++] = this->gl_config.accum_green_size; | |
| 77 attributes[i++] = AGL_ACCUM_BLUE_SIZE; | |
| 78 attributes[i++] = this->gl_config.accum_blue_size; | |
| 79 attributes[i++] = AGL_ACCUM_ALPHA_SIZE; | |
| 80 attributes[i++] = this->gl_config.accum_alpha_size; | |
| 81 } | |
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82 if ( this->gl_config.stereo ) { |
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83 attributes[i++] = AGL_STEREO; |
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84 } |
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85 #if defined(AGL_SAMPLE_BUFFERS_ARB) && defined(AGL_SAMPLES_ARB) |
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86 if ( this->gl_config.multisamplebuffers != 0 ) { |
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87 attributes[i++] = AGL_SAMPLE_BUFFERS_ARB; |
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88 attributes[i++] = this->gl_config.multisamplebuffers; |
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89 } |
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90 if ( this->gl_config.multisamplesamples != 0 ) { |
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91 attributes[i++] = AGL_SAMPLES_ARB; |
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92 attributes[i++] = this->gl_config.multisamplesamples; |
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93 } |
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94 #endif |
| 0 | 95 attributes[i++] = AGL_ALL_RENDERERS; |
| 96 attributes[i] = AGL_NONE; | |
| 97 | |
| 98 format = aglChoosePixelFormat(NULL, 0, attributes); | |
| 99 if ( format == NULL ) { | |
| 100 SDL_SetError("Couldn't match OpenGL desired format"); | |
| 101 return(-1); | |
| 102 } | |
| 103 | |
| 104 glContext = aglCreateContext(format, NULL); | |
| 105 if ( glContext == NULL ) { | |
| 106 SDL_SetError("Couldn't create OpenGL context"); | |
| 107 return(-1); | |
| 108 } | |
| 109 aglDestroyPixelFormat(format); | |
| 110 | |
| 111 #if TARGET_API_MAC_CARBON | |
| 112 noerr = aglSetDrawable(glContext, GetWindowPort(SDL_Window)); | |
| 113 #else | |
| 114 noerr = aglSetDrawable(glContext, (AGLDrawable)SDL_Window); | |
| 115 #endif | |
| 116 | |
| 117 if(!noerr) { | |
| 118 SDL_SetError("Unable to bind GL context to window"); | |
| 119 return(-1); | |
| 120 } | |
| 121 return(0); | |
| 122 #else | |
| 123 SDL_SetError("OpenGL support not configured"); | |
| 124 return(-1); | |
| 125 #endif | |
| 126 } | |
| 127 | |
| 128 void Mac_GL_Quit(_THIS) | |
| 129 { | |
| 130 #ifdef HAVE_OPENGL | |
| 131 if ( glContext != NULL ) { | |
| 132 aglSetCurrentContext(NULL); | |
| 133 aglSetDrawable(glContext, NULL); | |
| 134 aglDestroyContext(glContext); | |
| 135 glContext = NULL; | |
| 136 } | |
| 137 #endif | |
| 138 } | |
| 139 | |
| 140 #ifdef HAVE_OPENGL | |
| 141 | |
| 142 /* Make the current context active */ | |
| 143 int Mac_GL_MakeCurrent(_THIS) | |
| 144 { | |
| 145 int retval; | |
| 146 | |
| 147 retval = 0; | |
| 148 if( ! aglSetCurrentContext(glContext) ) { | |
| 149 SDL_SetError("Unable to make GL context current"); | |
| 150 retval = -1; | |
| 151 } | |
| 152 return(retval); | |
| 153 } | |
| 154 | |
| 155 void Mac_GL_SwapBuffers(_THIS) | |
| 156 { | |
| 157 aglSwapBuffers(glContext); | |
| 158 } | |
| 159 | |
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160 int Mac_GL_LoadLibrary(_THIS, const char *location) |
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161 { |
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162 if (location == NULL) |
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163 location = "OpenGLLibrary"; |
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164 |
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165 this->hidden->libraryHandle = SDL_LoadObject(location); |
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166 |
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167 this->gl_config.driver_loaded = 1; |
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168 return (this->hidden->libraryHandle != NULL) ? 0 : -1; |
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169 } |
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170 |
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171 void Mac_GL_UnloadLibrary(_THIS) |
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172 { |
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173 SDL_UnloadObject(this->hidden->libraryHandle); |
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174 |
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175 this->hidden->libraryHandle = NULL; |
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176 this->gl_config.driver_loaded = 0; |
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177 } |
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178 |
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179 void* Mac_GL_GetProcAddress(_THIS, const char *proc) |
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180 { |
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181 return SDL_LoadFunction( this->hidden->libraryHandle, proc ); |
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182 } |
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183 |
| 0 | 184 #endif /* HAVE_OPENGL */ |
| 185 |