Mercurial > sdl-ios-xcode

annotate src/video/cybergfx/SDL_cgxgl_c.h @ 1012:f14e3059e138

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Date: Mon, 13 Dec 2004 21:28:18 -0500 From: Jonathan Atkins Subject: [SDL] SDL_SaveBMP width bugfix this fixes the pitch versus width difference that can happen (especially for 8bit and 24bit (with the exact RGBAmasks) surfaces) when you use SDL_SaveBMP. The problem was the pitch was used instead of the width, which in some cases is much wider than the screen area you really want to save...making for ugly crud on the saved image borders. This code has been tested with & without pitch overhangs...and with the right masks for 24 bit surfaces. I tested 8,15,16,24,32-0RGB,32-RGBA(with no SDL_SRCALPHA flag).
author Sam Lantinga <slouken@libsdl.org>
date Tue, 14 Dec 2004 06:20:49 +0000
parents b8d311d90021
children c9b51268668f
rev   line source
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1 /*
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2 SDL - Simple DirectMedia Layer
769
b8d311d90021 Updated copyright information for 2004 (Happy New Year!)
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
3 Copyright (C) 1997-2004 Sam Lantinga
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
4
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
5 This library is free software; you can redistribute it and/or
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
6 modify it under the terms of the GNU Library General Public
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
7 License as published by the Free Software Foundation; either
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
8 version 2 of the License, or (at your option) any later version.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
9
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
10 This library is distributed in the hope that it will be useful,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
13 Library General Public License for more details.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
14
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
15 You should have received a copy of the GNU Library General Public
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
16 License along with this library; if not, write to the Free
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
18
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
19 Sam Lantinga
252
e8157fcb3114 Updated the source with the correct e-mail address
Sam Lantinga <slouken@libsdl.org>
parents: 0
diff changeset
20 slouken@libsdl.org
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
21 */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
22
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
23 #ifdef SAVE_RCSID
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
24 static char rcsid =
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
25 "@(#) $Id$";
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
26 #endif
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
27
255
dcb5e869f8b5 Updated Amiga port by Gabriele Greco
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
28 /* StormMesa implementation of SDL OpenGL support */
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
29
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
30 #include "SDL_sysvideo.h"
255
dcb5e869f8b5 Updated Amiga port by Gabriele Greco
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
31 #define _THIS SDL_VideoDevice *_this
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
32
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
33 #ifdef HAVE_OPENGL
255
dcb5e869f8b5 Updated Amiga port by Gabriele Greco
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
34 #include <GL/Amigamesa.h>
dcb5e869f8b5 Updated Amiga port by Gabriele Greco
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
35 extern void *AmiGetGLProc(const char *proc);
dcb5e869f8b5 Updated Amiga port by Gabriele Greco
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
36 #endif /* HAVE_OPENGL */
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
37
255
dcb5e869f8b5 Updated Amiga port by Gabriele Greco
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
38 struct SDL_PrivateGLData {
dcb5e869f8b5 Updated Amiga port by Gabriele Greco
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
39 int gl_active;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
40 };
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
41
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
42 /* OpenGL functions */
255
dcb5e869f8b5 Updated Amiga port by Gabriele Greco
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
43 extern int CGX_GL_Init(_THIS);
dcb5e869f8b5 Updated Amiga port by Gabriele Greco
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
44 extern void CGX_GL_Quit(_THIS);
dcb5e869f8b5 Updated Amiga port by Gabriele Greco
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
45 extern int CGX_GL_Update(_THIS);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
46 #ifdef HAVE_OPENGL
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
47 extern int CGX_GL_MakeCurrent(_THIS);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
48 extern int CGX_GL_GetAttribute(_THIS, SDL_GLattr attrib, int* value);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
49 extern void CGX_GL_SwapBuffers(_THIS);
255
dcb5e869f8b5 Updated Amiga port by Gabriele Greco
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
50 extern void *CGX_GL_GetProcAddress(_THIS, const char *proc);
dcb5e869f8b5 Updated Amiga port by Gabriele Greco
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
51 extern int CGX_GL_LoadLibrary(_THIS, const char *path);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
52 #endif
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
53
255
dcb5e869f8b5 Updated Amiga port by Gabriele Greco
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
54 #undef _THIS