Mercurial > sdl-ios-xcode
annotate src/video/fbcon/3dfx_regs.h @ 1555:780fd5b61df1
Fixed bug #89
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 12:05:16 +0000 |
| parents | d910939febfa |
| children | 782fd950bd46 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:
769
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:
769
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:
769
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:
769
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:
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 |
| 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
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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 #ifndef _3DFX_REGS_H | |
| 25 #define _3DFX_REGS_H | |
| 26 | |
| 27 /* This information comes from the public 3Dfx specs for the Voodoo 3000 */ | |
| 28 | |
| 29 /* mapped_io register offsets */ | |
| 30 #define TDFX_STATUS 0x00 | |
| 31 | |
| 32 #define INTCTRL (0x00100000 + 0x04) | |
| 33 #define CLIP0MIN (0x00100000 + 0x08) | |
| 34 #define CLIP0MAX (0x00100000 + 0x0c) | |
| 35 #define DSTBASE (0x00100000 + 0x10) | |
| 36 #define DSTFORMAT (0x00100000 + 0x14) | |
| 37 #define SRCCOLORKEYMIN (0x00100000 + 0x18) | |
| 38 #define SRCCOLORKEYMAX (0x00100000 + 0x1c) | |
| 39 #define DSTCOLORKEYMIN (0x00100000 + 0x20) | |
| 40 #define DSTCOLORKEYMAX (0x00100000 + 0x24) | |
| 41 #define BRESERROR0 (0x00100000 + 0x28) | |
| 42 #define BRESERROR1 (0x00100000 + 0x2c) | |
| 43 #define ROP_2D (0x00100000 + 0x30) | |
| 44 #define SRCBASE (0x00100000 + 0x34) | |
| 45 #define COMMANDEXTRA_2D (0x00100000 + 0x38) | |
| 46 #define PATTERN0 (0x00100000 + 0x44) | |
| 47 #define PATTERN1 (0x00100000 + 0x48) | |
| 48 #define CLIP1MIN (0x00100000 + 0x4c) | |
| 49 #define CLIP1MAX (0x00100000 + 0x50) | |
| 50 #define SRCFORMAT (0x00100000 + 0x54) | |
| 51 #define SRCSIZE (0x00100000 + 0x58) | |
| 52 #define SRCXY (0x00100000 + 0x5c) | |
| 53 #define COLORBACK (0x00100000 + 0x60) | |
| 54 #define COLORFORE (0x00100000 + 0x64) | |
| 55 #define DSTSIZE (0x00100000 + 0x68) | |
| 56 #define DSTXY (0x00100000 + 0x6c) | |
| 57 #define COMMAND_2D (0x00100000 + 0x70) | |
| 58 #define LAUNCH_2D (0x00100000 + 0x80) | |
| 59 #define PATTERNBASE (0x00100000 + 0x100) | |
| 60 | |
| 61 #define COMMAND_3D (0x00200000 + 0x120) | |
| 62 | |
| 63 /* register bitfields (not all, only as needed) */ | |
| 64 | |
| 65 #define BIT(x) (1UL << (x)) | |
| 66 | |
| 67 #define COMMAND_2D_BITBLT 0x01 | |
| 68 #define COMMAND_2D_FILLRECT 0x05 | |
| 69 #define COMMAND_2D_LINE 0x06 | |
| 70 #define COMMAND_2D_POLYGON_FILL 0x08 | |
| 71 #define COMMAND_2D_INITIATE BIT(8) | |
| 72 #define COMMAND_2D_REVERSELINE BIT(9) | |
| 73 #define COMMAND_2D_STIPPLELINE BIT(12) | |
| 74 #define COMMAND_2D_MONOCHROME_PATT BIT(13) | |
| 75 #define COMMAND_2D_MONOCHROME_TRANSP BIT(16) | |
| 76 | |
| 77 #define COMMAND_3D_NOP 0x00 | |
| 78 | |
| 79 #define STATUS_RETRACE BIT(6) | |
| 80 #define STATUS_BUSY BIT(9) | |
| 81 | |
| 82 #endif /* _3DFX_REGS_H */ | |
| 83 |