Mercurial > sdl-ios-xcode
annotate include/SDL_error.h @ 1554:0ca607a5d173
Fixed bug #84
Date: Sun, 23 Oct 2005 16:39:03 +0200
From: "A. Schmid" <sahib@phreaker.net>
Subject: [SDL] no software surfaces with svgalib driver?
Hi,
I noticed that the SDL (1.2.9) svgalib driver only makes use of linear
addressable (framebuffer) video modes. On older systems (like one of
mine), linear addressable modes are often not available.
Especially for cards with VESA VBE < 2.0 the svgalib vesa driver is
unusable, since VESA only supports framebuffering for VBE 2.0 and later.
The changes necessary to add support for software surfaces seem to be
relatively small. I only had to hack src/video/svga/SDL_svgavideo.c (see
attached patch). The code worked fine for me, but it is no more than a
proof of concept and should be reviewed (probably has a memory leak when
switching modes). It also uses the vgagl library (included in the
svgalib package) and needs to be linked against it.
-Alex
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sun, 19 Mar 2006 12:04:40 +0000 |
| parents | 19418e4422cb |
| children | 782fd950bd46 c121d94672cb a1b03ba2fcd0 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
977
diff
changeset
|
3 Copyright (C) 1997-2006 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
|
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
977
diff
changeset
|
6 modify it under the terms of the GNU Lesser General Public |
| 0 | 7 License as published by the Free Software Foundation; either |
|
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
977
diff
changeset
|
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 | |
|
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
977
diff
changeset
|
13 Lesser General Public License for more details. |
| 0 | 14 |
|
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
977
diff
changeset
|
15 You should have received a copy of the GNU Lesser General Public |
|
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
977
diff
changeset
|
16 License along with this library; if not, write to the Free Software |
|
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
977
diff
changeset
|
17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 0 | 18 |
| 19 Sam Lantinga | |
|
251
b8688cfdc232
Updated the headers with the correct e-mail address
Sam Lantinga <slouken@libsdl.org>
parents:
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20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
| 23 /* Simple error message routines for SDL */ | |
| 24 | |
| 25 #ifndef _SDL_error_h | |
| 26 #define _SDL_error_h | |
| 27 | |
|
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*** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
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28 #include "SDL_stdinc.h" |
|
67114343400d
*** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents:
1312
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changeset
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29 |
| 0 | 30 #include "begin_code.h" |
| 31 /* Set up for C function definitions, even when using C++ */ | |
| 32 #ifdef __cplusplus | |
| 33 extern "C" { | |
| 34 #endif | |
| 35 | |
| 36 /* Public functions */ | |
|
337
9154ec9ca3d2
Explicitly specify the SDL API calling convention (C by default)
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
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37 extern DECLSPEC void SDLCALL SDL_SetError(const char *fmt, ...); |
|
9154ec9ca3d2
Explicitly specify the SDL API calling convention (C by default)
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
|
38 extern DECLSPEC char * SDLCALL SDL_GetError(void); |
|
9154ec9ca3d2
Explicitly specify the SDL API calling convention (C by default)
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
|
39 extern DECLSPEC void SDLCALL SDL_ClearError(void); |
| 0 | 40 |
| 41 /* Private error message function - used internally */ | |
| 42 #define SDL_OutOfMemory() SDL_Error(SDL_ENOMEM) | |
|
1361
19418e4422cb
New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents:
1356
diff
changeset
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43 #define SDL_Unsupported() SDL_Error(SDL_UNSUPPORTED) |
| 0 | 44 typedef enum { |
| 45 SDL_ENOMEM, | |
| 46 SDL_EFREAD, | |
| 47 SDL_EFWRITE, | |
| 48 SDL_EFSEEK, | |
|
1361
19418e4422cb
New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents:
1356
diff
changeset
|
49 SDL_UNSUPPORTED, |
| 0 | 50 SDL_LASTERROR |
| 51 } SDL_errorcode; | |
|
977
9c55b00f8251
Updated for Visual C++ 6 build
Sam Lantinga <slouken@libsdl.org>
parents:
976
diff
changeset
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52 extern DECLSPEC void SDLCALL SDL_Error(SDL_errorcode code); |
| 0 | 53 |
| 54 | |
| 55 /* Ends C function definitions when using C++ */ | |
| 56 #ifdef __cplusplus | |
| 57 } | |
| 58 #endif | |
| 59 #include "close_code.h" | |
| 60 | |
| 61 #endif /* _SDL_error_h */ |