Mercurial > sdl-ios-xcode
annotate src/SDL_error_c.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 | d910939febfa |
| children | 14717b52abc0 |
| 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:
911
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:
911
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:
911
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:
911
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:
911
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:
911
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:
911
diff
changeset
|
17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 0 | 18 |
| 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 | 21 */ |
|
1402
d910939febfa
Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
22 #include "SDL_config.h" |
| 0 | 23 |
| 24 /* This file defines a structure that carries language-independent | |
| 25 error messages | |
| 26 */ | |
| 27 | |
| 28 #ifndef _SDL_error_c_h | |
| 29 #define _SDL_error_c_h | |
| 30 | |
| 31 #define ERR_MAX_STRLEN 128 | |
| 32 #define ERR_MAX_ARGS 5 | |
| 33 | |
|
911
04a403e4ccf5
Date: Mon, 3 May 2004 03:15:01 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
34 typedef struct SDL_error { |
| 0 | 35 /* This is a numeric value corresponding to the current error */ |
| 36 int error; | |
| 37 | |
| 38 /* This is a key used to index into a language hashtable containing | |
| 39 internationalized versions of the SDL error messages. If the key | |
| 40 is not in the hashtable, or no hashtable is available, the key is | |
| 41 used directly as an error message format string. | |
| 42 */ | |
| 43 unsigned char key[ERR_MAX_STRLEN]; | |
| 44 | |
| 45 /* These are the arguments for the error functions */ | |
| 46 int argc; | |
| 47 union { | |
| 48 void *value_ptr; | |
| 49 #if 0 /* What is a character anyway? (UNICODE issues) */ | |
| 50 unsigned char value_c; | |
| 51 #endif | |
| 52 int value_i; | |
| 53 double value_f; | |
| 54 unsigned char buf[ERR_MAX_STRLEN]; | |
| 55 } args[ERR_MAX_ARGS]; | |
| 56 } SDL_error; | |
| 57 | |
| 58 #endif /* _SDL_error_c_h */ |