Mercurial > sdl-ios-xcode
annotate src/video/fbcon/SDL_fbriva.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 | 782fd950bd46 c121d94672cb a1b03ba2fcd0 |
rev | line source |
---|---|
133
5d4bafca35cd
Added support for hardware accelerated NVidia driver on framebuffer console
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1 /* |
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
2 SDL - Simple DirectMedia Layer |
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
3 Copyright (C) 1997-2006 Sam Lantinga |
133
5d4bafca35cd
Added support for hardware accelerated NVidia driver on framebuffer console
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
4 |
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
5 This library is free software; you can redistribute it and/or |
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
6 modify it under the terms 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:
769
diff
changeset
|
7 License as published by the Free Software Foundation; either |
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
8 version 2.1 of the License, or (at your option) any later version. |
133
5d4bafca35cd
Added support for hardware accelerated NVidia driver on framebuffer console
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
9 |
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
10 This library is distributed in the hope that it will be useful, |
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
11 but WITHOUT ANY WARRANTY; without even the implied warranty of |
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
13 Lesser General Public License for more details. |
133
5d4bafca35cd
Added support for hardware accelerated NVidia driver on framebuffer console
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
14 |
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
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:
769
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:
769
diff
changeset
|
17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
133
5d4bafca35cd
Added support for hardware accelerated NVidia driver on framebuffer console
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
18 |
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
19 Sam Lantinga |
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
20 slouken@libsdl.org |
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
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" |
133
5d4bafca35cd
Added support for hardware accelerated NVidia driver on framebuffer console
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
23 |
5d4bafca35cd
Added support for hardware accelerated NVidia driver on framebuffer console
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
24 /* Riva hardware acceleration for the SDL framebuffer console driver */ |
5d4bafca35cd
Added support for hardware accelerated NVidia driver on framebuffer console
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
25 |
5d4bafca35cd
Added support for hardware accelerated NVidia driver on framebuffer console
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
26 #include "SDL_fbvideo.h" |
5d4bafca35cd
Added support for hardware accelerated NVidia driver on framebuffer console
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
27 |
134
f1550e1c4916
Fix compile riva fb problem on older kernels
Sam Lantinga <slouken@libsdl.org>
parents:
133
diff
changeset
|
28 #ifndef FB_ACCEL_NV3 |
f1550e1c4916
Fix compile riva fb problem on older kernels
Sam Lantinga <slouken@libsdl.org>
parents:
133
diff
changeset
|
29 #define FB_ACCEL_NV3 27 |
f1550e1c4916
Fix compile riva fb problem on older kernels
Sam Lantinga <slouken@libsdl.org>
parents:
133
diff
changeset
|
30 #endif |
f1550e1c4916
Fix compile riva fb problem on older kernels
Sam Lantinga <slouken@libsdl.org>
parents:
133
diff
changeset
|
31 #ifndef FB_ACCEL_NV4 |
f1550e1c4916
Fix compile riva fb problem on older kernels
Sam Lantinga <slouken@libsdl.org>
parents:
133
diff
changeset
|
32 #define FB_ACCEL_NV4 28 |
f1550e1c4916
Fix compile riva fb problem on older kernels
Sam Lantinga <slouken@libsdl.org>
parents:
133
diff
changeset
|
33 #endif |
f1550e1c4916
Fix compile riva fb problem on older kernels
Sam Lantinga <slouken@libsdl.org>
parents:
133
diff
changeset
|
34 |
133
5d4bafca35cd
Added support for hardware accelerated NVidia driver on framebuffer console
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
35 /* Set up the driver for Riva acceleration */ |
5d4bafca35cd
Added support for hardware accelerated NVidia driver on framebuffer console
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
36 extern void FB_RivaAccel(_THIS, __u32 card); |