Mercurial > sdl-ios-xcode
annotate src/video/x11/SDL_x11gl_c.h @ 1240:3b8a43c428bb
From Bug #36:
There are a couple of issues with the selection of Altivec alpha-blitting
routines in CalculateAlphaBlit() in src/video/SDL_Blit_A.c.
1) There's no check for the presence of Altivec when checking if the
Blit32to565PixelAlphaAltivec() routine can be selected.
2) Altivec cannot be used in video memory, and there's no check if the
destination surface is a hardware surface. (Alpha-blitting to a hardware
surface with GPU support is a bad idea, but somebody's bound to do it anyway.)
Patch to fix these attached.
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Sun, 08 Jan 2006 21:18:15 +0000 |
| parents | 2bd4cec0de63 |
| children | c9b51268668f |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
769
b8d311d90021
Updated copyright information for 2004 (Happy New Year!)
Sam Lantinga <slouken@libsdl.org>
parents:
646
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changeset
|
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 | |
|
252
e8157fcb3114
Updated the source with the correct e-mail address
Sam Lantinga <slouken@libsdl.org>
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20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
| 23 #ifdef SAVE_RCSID | |
| 24 static char rcsid = | |
| 25 "@(#) $Id$"; | |
| 26 #endif | |
| 27 | |
|
1191
2bd4cec0de63
Seperate glX from HAVE_OPENGL, for platforms that have both an X server and
Ryan C. Gordon <icculus@icculus.org>
parents:
769
diff
changeset
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28 #ifdef HAVE_OPENGL_X11 |
| 0 | 29 #include <GL/glx.h> |
|
1191
2bd4cec0de63
Seperate glX from HAVE_OPENGL, for platforms that have both an X server and
Ryan C. Gordon <icculus@icculus.org>
parents:
769
diff
changeset
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30 #ifdef USE_DLOPEN |
| 0 | 31 #include <dlfcn.h> |
|
1191
2bd4cec0de63
Seperate glX from HAVE_OPENGL, for platforms that have both an X server and
Ryan C. Gordon <icculus@icculus.org>
parents:
769
diff
changeset
|
32 #else |
|
2bd4cec0de63
Seperate glX from HAVE_OPENGL, for platforms that have both an X server and
Ryan C. Gordon <icculus@icculus.org>
parents:
769
diff
changeset
|
33 #include "SDL_loadso.h" |
|
110
7edee9f0f2cc
SDL GL dynamic loading fix for OpenBSD
Sam Lantinga <slouken@lokigames.com>
parents:
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34 #endif |
| 0 | 35 #endif |
|
1191
2bd4cec0de63
Seperate glX from HAVE_OPENGL, for platforms that have both an X server and
Ryan C. Gordon <icculus@icculus.org>
parents:
769
diff
changeset
|
36 |
| 0 | 37 #include "SDL_sysvideo.h" |
| 38 | |
| 39 struct SDL_PrivateGLData { | |
| 40 int gl_active; /* to stop switching drivers while we have a valid context */ | |
| 41 | |
|
1191
2bd4cec0de63
Seperate glX from HAVE_OPENGL, for platforms that have both an X server and
Ryan C. Gordon <icculus@icculus.org>
parents:
769
diff
changeset
|
42 #ifdef HAVE_OPENGL_X11 |
| 0 | 43 GLXContext glx_context; /* Current GL context */ |
| 44 XVisualInfo* glx_visualinfo; /* XVisualInfo* returned by glXChooseVisual */ | |
| 45 | |
| 46 void * (*glXGetProcAddress)(const GLubyte *procName); | |
| 47 | |
| 48 XVisualInfo* (*glXChooseVisual) | |
| 49 ( Display* dpy, | |
| 50 int screen, | |
| 51 int* attribList ); | |
| 52 | |
| 53 GLXContext (*glXCreateContext) | |
| 54 ( Display* dpy, | |
| 55 XVisualInfo* vis, | |
| 56 GLXContext shareList, | |
| 57 Bool direct ); | |
| 58 | |
| 59 void (*glXDestroyContext) | |
| 60 ( Display* dpy, | |
| 61 GLXContext ctx ); | |
| 62 | |
| 63 Bool (*glXMakeCurrent) | |
| 64 ( Display* dpy, | |
| 65 GLXDrawable drawable, | |
| 66 GLXContext ctx ); | |
| 67 | |
| 68 void (*glXSwapBuffers) | |
| 69 ( Display* dpy, | |
| 70 GLXDrawable drawable ); | |
| 71 | |
| 72 int (*glXGetConfig) | |
| 73 ( Display* dpy, | |
| 74 XVisualInfo* visual_info, | |
| 75 int attrib, | |
| 76 int* value ); | |
| 77 | |
| 78 void (*glXReleaseBuffersMESA) | |
| 79 ( Display* dpy, | |
| 80 GLXDrawable drawable ); | |
| 81 | |
|
646
0f2029a70548
Fixed incorrect prototype for glXQueryExtensionsString()
Sam Lantinga <slouken@libsdl.org>
parents:
638
diff
changeset
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82 const char *(*glXQueryExtensionsString) |
|
638
b0108e9dea53
Date: Sun, 11 May 2003 19:59:06 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
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83 ( Display* dpy, |
|
b0108e9dea53
Date: Sun, 11 May 2003 19:59:06 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
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84 int screen); |
|
b0108e9dea53
Date: Sun, 11 May 2003 19:59:06 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
297
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85 |
|
b0108e9dea53
Date: Sun, 11 May 2003 19:59:06 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
|
86 |
|
1191
2bd4cec0de63
Seperate glX from HAVE_OPENGL, for platforms that have both an X server and
Ryan C. Gordon <icculus@icculus.org>
parents:
769
diff
changeset
|
87 #endif /* HAVE_OPENGL_X11 */ |
| 0 | 88 }; |
| 89 | |
| 90 /* Old variable names */ | |
| 91 #define gl_active (this->gl_data->gl_active) | |
| 92 #define glx_context (this->gl_data->glx_context) | |
| 93 #define glx_visualinfo (this->gl_data->glx_visualinfo) | |
| 94 | |
| 95 /* OpenGL functions */ | |
| 96 extern XVisualInfo *X11_GL_GetVisual(_THIS); | |
| 97 extern int X11_GL_CreateWindow(_THIS, int w, int h); | |
| 98 extern int X11_GL_CreateContext(_THIS); | |
| 99 extern void X11_GL_Shutdown(_THIS); | |
|
1191
2bd4cec0de63
Seperate glX from HAVE_OPENGL, for platforms that have both an X server and
Ryan C. Gordon <icculus@icculus.org>
parents:
769
diff
changeset
|
100 #ifdef HAVE_OPENGL_X11 |
| 0 | 101 extern int X11_GL_MakeCurrent(_THIS); |
| 102 extern int X11_GL_GetAttribute(_THIS, SDL_GLattr attrib, int* value); | |
| 103 extern void X11_GL_SwapBuffers(_THIS); | |
| 104 extern int X11_GL_LoadLibrary(_THIS, const char* path); | |
| 105 extern void *X11_GL_GetProcAddress(_THIS, const char* proc); | |
| 106 #endif | |
| 107 extern void X11_GL_UnloadLibrary(_THIS); | |
| 108 |