Mercurial > sdl-ios-xcode
annotate src/hermes/HeadMMX.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 39b9405d3cb6 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 Header definitions for the MMX routines for the HERMES library | |
| 3 Copyright (c) 1998 Christian Nentwich (c.nentwich@cs.ucl.ac.uk) | |
| 4 This source code is licensed under the GNU LGPL | |
| 5 | |
| 6 Please refer to the file COPYING.LIB contained in the distribution for | |
| 7 licensing conditions | |
| 8 */ | |
|
1402
d910939febfa
Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents:
1197
diff
changeset
|
9 #include "SDL_config.h" |
| 0 | 10 |
| 11 #ifndef __HERMES_HEAD_MMX__ | |
| 12 #define __HERMES_HEAD_MMX__ | |
| 13 | |
| 14 | |
| 15 /* If you cannot stand ifdefs, then please do not look into this file, it's | |
| 16 going to end your life :) */ | |
| 17 | |
| 18 #ifdef X86_ASSEMBLER | |
| 19 | |
| 20 | |
| 21 #ifdef __cplusplus | |
| 22 extern "C" { | |
| 23 #endif | |
| 24 | |
| 25 void STACKCALL ConvertMMX(HermesConverterInterface *); | |
| 26 | |
| 27 void STACKCALL ClearMMX_32(HermesClearInterface *); | |
| 28 void STACKCALL ClearMMX_24(HermesClearInterface *); | |
| 29 void STACKCALL ClearMMX_16(HermesClearInterface *); | |
| 30 void STACKCALL ClearMMX_8(HermesClearInterface *); | |
| 31 | |
| 32 void ConvertMMXpII32_24RGB888(); | |
| 33 void ConvertMMXpII32_16RGB565(); | |
| 34 void ConvertMMXpII32_16BGR565(); | |
| 35 void ConvertMMXpII32_16RGB555(); | |
| 36 void ConvertMMXpII32_16BGR565(); | |
| 37 void ConvertMMXpII32_16BGR555(); | |
| 38 | |
| 39 void ConvertMMXp32_16RGB555(); | |
| 40 | |
| 41 #ifdef __cplusplus | |
| 42 } | |
| 43 #endif | |
| 44 | |
| 45 | |
| 46 | |
| 47 /* Fix the underscore business with ELF compilers */ | |
| 48 | |
| 49 #if defined(__ELF__) && defined(__GNUC__) | |
| 50 #ifdef __cplusplus | |
| 51 extern "C" { | |
| 52 #endif | |
| 53 | |
|
1197
bb5ace455586
Fixed compiling with gcc 4, patch applied from Gentoo Bugzilla:
Sam Lantinga <slouken@libsdl.org>
parents:
0
diff
changeset
|
54 extern void _ConvertMMX(HermesConverterInterface *); |
|
bb5ace455586
Fixed compiling with gcc 4, patch applied from Gentoo Bugzilla:
Sam Lantinga <slouken@libsdl.org>
parents:
0
diff
changeset
|
55 extern void _ConvertMMXpII32_24RGB888(); |
|
bb5ace455586
Fixed compiling with gcc 4, patch applied from Gentoo Bugzilla:
Sam Lantinga <slouken@libsdl.org>
parents:
0
diff
changeset
|
56 extern void _ConvertMMXpII32_16RGB565(); |
|
bb5ace455586
Fixed compiling with gcc 4, patch applied from Gentoo Bugzilla:
Sam Lantinga <slouken@libsdl.org>
parents:
0
diff
changeset
|
57 extern void _ConvertMMXpII32_16BGR565(); |
|
bb5ace455586
Fixed compiling with gcc 4, patch applied from Gentoo Bugzilla:
Sam Lantinga <slouken@libsdl.org>
parents:
0
diff
changeset
|
58 extern void _ConvertMMXpII32_16RGB555(); |
|
bb5ace455586
Fixed compiling with gcc 4, patch applied from Gentoo Bugzilla:
Sam Lantinga <slouken@libsdl.org>
parents:
0
diff
changeset
|
59 extern void _ConvertMMXpII32_16BGR555(); |
| 0 | 60 |
|
1197
bb5ace455586
Fixed compiling with gcc 4, patch applied from Gentoo Bugzilla:
Sam Lantinga <slouken@libsdl.org>
parents:
0
diff
changeset
|
61 #define ConvertMMX _ConvertMMX |
|
bb5ace455586
Fixed compiling with gcc 4, patch applied from Gentoo Bugzilla:
Sam Lantinga <slouken@libsdl.org>
parents:
0
diff
changeset
|
62 #define ConvertMMXpII32_24RGB888 _ConvertMMXpII32_24RGB888 |
|
bb5ace455586
Fixed compiling with gcc 4, patch applied from Gentoo Bugzilla:
Sam Lantinga <slouken@libsdl.org>
parents:
0
diff
changeset
|
63 #define ConvertMMXpII32_16RGB565 _ConvertMMXpII32_16RGB565 |
|
bb5ace455586
Fixed compiling with gcc 4, patch applied from Gentoo Bugzilla:
Sam Lantinga <slouken@libsdl.org>
parents:
0
diff
changeset
|
64 #define ConvertMMXpII32_16BGR565 _ConvertMMXpII32_16BGR565 |
|
bb5ace455586
Fixed compiling with gcc 4, patch applied from Gentoo Bugzilla:
Sam Lantinga <slouken@libsdl.org>
parents:
0
diff
changeset
|
65 #define ConvertMMXpII32_16RGB555 _ConvertMMXpII32_16RGB555 |
|
bb5ace455586
Fixed compiling with gcc 4, patch applied from Gentoo Bugzilla:
Sam Lantinga <slouken@libsdl.org>
parents:
0
diff
changeset
|
66 #define ConvertMMXpII32_16BGR555 _ConvertMMXpII32_16BGR555 |
| 0 | 67 |
| 68 #ifdef __cplusplus | |
| 69 } | |
| 70 #endif | |
| 71 | |
| 72 #endif /* ELF and GNUC */ | |
| 73 | |
| 74 | |
| 75 | |
| 76 | |
| 77 /* Make it work with Watcom */ | |
| 78 #ifdef __WATCOMC__ | |
| 79 #pragma warning 601 9 | |
| 80 | |
| 81 #pragma aux ConvertMMX "_*" modify [EAX EBX ECX EDX ESI EDI] | |
| 82 | |
| 83 #pragma aux ClearMMX_32 "_*" modify [EAX EBX ECX EDX ESI EDI] | |
| 84 #pragma aux ClearMMX_24 "_*" modify [EAX EBX ECX EDX ESI EDI] | |
| 85 #pragma aux ClearMMX_16 "_*" modify [EAX EBX ECX EDX ESI EDI] | |
| 86 #pragma aux ClearMMX_8 "_*" modify [EAX EBX ECX EDX ESI EDI] | |
| 87 | |
| 88 #pragma aux ConvertMMXpII32_24RGB888 "_*" | |
| 89 #pragma aux ConvertMMXpII32_16RGB565 "_*" | |
| 90 #pragma aux ConvertMMXpII32_16BGR565 "_*" | |
| 91 #pragma aux ConvertMMXpII32_16RGB555 "_*" | |
| 92 #pragma aux ConvertMMXpII32_16BGR555 "_*" | |
| 93 #pragma aux ConvertMMXp32_16RGB555 "_*" | |
| 94 | |
| 95 #endif /* WATCOM */ | |
| 96 | |
| 97 #endif /* X86_ASSEMBLER */ | |
| 98 | |
| 99 | |
| 100 #endif |