Mercurial > sdl-ios-xcode
annotate src/video/maccommon/SDL_macgl.c @ 656:864e2d2a9a55
Merged in Ryan's multisample code for MacOS, and changed the constants to match.
author | Sam Lantinga <slouken@libsdl.org> |
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date | Tue, 22 Jul 2003 15:33:28 +0000 |
parents | 8a43e0cbf02f |
children | a33b7819b917 |
rev | line source |
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0 | 1 /* |
2 SDL - Simple DirectMedia Layer | |
297
f6ffac90895c
Updated copyright information for 2002
Sam Lantinga <slouken@libsdl.org>
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3 Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 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 | |
252
e8157fcb3114
Updated the source with the correct e-mail address
Sam Lantinga <slouken@libsdl.org>
parents:
0
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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" | |
33 | |
34 | |
35 /* krat: adding OpenGL support */ | |
36 int Mac_GL_Init(_THIS) | |
37 { | |
38 #ifdef HAVE_OPENGL | |
39 AGLPixelFormat format; | |
40 int i = 0; | |
41 GLint attributes [ 24 ]; /* 24 is max possible in this setup */ | |
42 GLboolean noerr; | |
43 | |
44 attributes[i++] = AGL_RGBA; | |
45 | |
46 if ( this->gl_config.double_buffer ) { | |
47 attributes[i++] = AGL_DOUBLEBUFFER; | |
48 } | |
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
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297
diff
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49 if ( this->gl_config.stereo ) { |
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
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50 attributes[i++] = AGL_STEREO; |
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
|
51 } |
656
864e2d2a9a55
Merged in Ryan's multisample code for MacOS, and changed the constants to match.
Sam Lantinga <slouken@libsdl.org>
parents:
450
diff
changeset
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52 if ( this->gl_config.multisamplebuffers != 0 ) { |
864e2d2a9a55
Merged in Ryan's multisample code for MacOS, and changed the constants to match.
Sam Lantinga <slouken@libsdl.org>
parents:
450
diff
changeset
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53 attributes[i++] = AGL_SAMPLE_BUFFERS_ARB; |
864e2d2a9a55
Merged in Ryan's multisample code for MacOS, and changed the constants to match.
Sam Lantinga <slouken@libsdl.org>
parents:
450
diff
changeset
|
54 attributes[i++] = this->gl_config.multisamplebuffers; |
864e2d2a9a55
Merged in Ryan's multisample code for MacOS, and changed the constants to match.
Sam Lantinga <slouken@libsdl.org>
parents:
450
diff
changeset
|
55 } |
864e2d2a9a55
Merged in Ryan's multisample code for MacOS, and changed the constants to match.
Sam Lantinga <slouken@libsdl.org>
parents:
450
diff
changeset
|
56 if ( this->gl_config.multisamplesamples != 0 ) { |
864e2d2a9a55
Merged in Ryan's multisample code for MacOS, and changed the constants to match.
Sam Lantinga <slouken@libsdl.org>
parents:
450
diff
changeset
|
57 attributes[i++] = AGL_SAMPLES_ARB; |
864e2d2a9a55
Merged in Ryan's multisample code for MacOS, and changed the constants to match.
Sam Lantinga <slouken@libsdl.org>
parents:
450
diff
changeset
|
58 attributes[i++] = this->gl_config.multisamplesamples; |
864e2d2a9a55
Merged in Ryan's multisample code for MacOS, and changed the constants to match.
Sam Lantinga <slouken@libsdl.org>
parents:
450
diff
changeset
|
59 } |
0 | 60 if ( this->gl_config.depth_size != 0 ) { |
61 attributes[i++] = AGL_DEPTH_SIZE; | |
62 attributes[i++] = this->gl_config.depth_size; | |
63 } | |
64 if ( this->gl_config.red_size != 0 && | |
65 this->gl_config.blue_size != 0 && | |
66 this->gl_config.green_size != 0 ) { | |
67 | |
68 attributes[i++] = AGL_RED_SIZE; | |
69 attributes[i++] = this->gl_config.red_size; | |
70 attributes[i++] = AGL_GREEN_SIZE; | |
71 attributes[i++] = this->gl_config.green_size; | |
72 attributes[i++] = AGL_BLUE_SIZE; | |
73 attributes[i++] = this->gl_config.blue_size; | |
74 attributes[i++] = AGL_ALPHA_SIZE; | |
75 attributes[i++] = this->gl_config.alpha_size; | |
76 } | |
77 if ( this->gl_config.stencil_size != 0 ) { | |
78 attributes[i++] = AGL_STENCIL_SIZE; | |
79 attributes[i++] = this->gl_config.stencil_size; | |
80 } | |
81 if ( this->gl_config.accum_red_size != 0 && | |
82 this->gl_config.accum_blue_size != 0 && | |
83 this->gl_config.accum_green_size != 0 ) { | |
84 | |
85 attributes[i++] = AGL_ACCUM_RED_SIZE; | |
86 attributes[i++] = this->gl_config.accum_red_size; | |
87 attributes[i++] = AGL_ACCUM_GREEN_SIZE; | |
88 attributes[i++] = this->gl_config.accum_green_size; | |
89 attributes[i++] = AGL_ACCUM_BLUE_SIZE; | |
90 attributes[i++] = this->gl_config.accum_blue_size; | |
91 attributes[i++] = AGL_ACCUM_ALPHA_SIZE; | |
92 attributes[i++] = this->gl_config.accum_alpha_size; | |
93 } | |
94 attributes[i++] = AGL_ALL_RENDERERS; | |
95 attributes[i] = AGL_NONE; | |
96 | |
97 format = aglChoosePixelFormat(NULL, 0, attributes); | |
98 if ( format == NULL ) { | |
99 SDL_SetError("Couldn't match OpenGL desired format"); | |
100 return(-1); | |
101 } | |
102 | |
103 glContext = aglCreateContext(format, NULL); | |
104 if ( glContext == NULL ) { | |
105 SDL_SetError("Couldn't create OpenGL context"); | |
106 return(-1); | |
107 } | |
108 aglDestroyPixelFormat(format); | |
109 | |
110 #if TARGET_API_MAC_CARBON | |
111 noerr = aglSetDrawable(glContext, GetWindowPort(SDL_Window)); | |
112 #else | |
113 noerr = aglSetDrawable(glContext, (AGLDrawable)SDL_Window); | |
114 #endif | |
115 | |
116 if(!noerr) { | |
117 SDL_SetError("Unable to bind GL context to window"); | |
118 return(-1); | |
119 } | |
120 return(0); | |
121 #else | |
122 SDL_SetError("OpenGL support not configured"); | |
123 return(-1); | |
124 #endif | |
125 } | |
126 | |
127 void Mac_GL_Quit(_THIS) | |
128 { | |
129 #ifdef HAVE_OPENGL | |
130 if ( glContext != NULL ) { | |
131 aglSetCurrentContext(NULL); | |
132 aglSetDrawable(glContext, NULL); | |
133 aglDestroyContext(glContext); | |
134 glContext = NULL; | |
135 } | |
136 #endif | |
137 } | |
138 | |
139 #ifdef HAVE_OPENGL | |
140 | |
141 /* Make the current context active */ | |
142 int Mac_GL_MakeCurrent(_THIS) | |
143 { | |
144 int retval; | |
145 | |
146 retval = 0; | |
147 if( ! aglSetCurrentContext(glContext) ) { | |
148 SDL_SetError("Unable to make GL context current"); | |
149 retval = -1; | |
150 } | |
151 return(retval); | |
152 } | |
153 | |
154 void Mac_GL_SwapBuffers(_THIS) | |
155 { | |
156 aglSwapBuffers(glContext); | |
157 } | |
158 | |
159 #endif /* HAVE_OPENGL */ | |
160 |