Mercurial > sdl-ios-xcode
annotate src/hermes/mmx_main.asm @ 4165:3b8ac3d311a2 SDL-1.2
Hello.
This patch provides basic support for video on the Sony PS3
Linux framebuffer. Scaling, format-conversion, and drawing is
done from the SPEs, so there is little performance impact to
PPE applications. This is by no means production quality code,
but it is a very good start and a good example of how to use the
PS3's hardware capabilities to accelerate video playback on
the box.
The driver has been verified to work with ffplay, mplayer and xine.
This piece of software has been developed at the IBM R&D Lab
in Boeblingen, Germany and is now returned to the community.
Enjoy !
Signed-off-by: D.Herrendoerfer < d.herrendoerfer [at] de [dot] ibm [dot] com >
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Thu, 02 Apr 2009 04:06:55 +0000 |
| parents | 540466e900db |
| children |
| rev | line source |
|---|---|
| 0 | 1 ; |
| 2 ; mmx format converter main loops for HERMES | |
| 3 ; Some routines 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 ; | |
| 9 | |
| 10 BITS 32 | |
| 11 | |
|
1873
eb4d9d99849b
Renamed, per Mike's comment on bug #157
Sam Lantinga <slouken@libsdl.org>
parents:
1871
diff
changeset
|
12 %include "common.inc" |
| 1871 | 13 |
| 14 SDL_FUNC _ConvertMMX | |
| 0 | 15 |
| 16 SECTION .text | |
| 17 | |
| 18 ;; _ConvertMMX: | |
| 19 ;; [ESP+8] ConverterInfo* | |
| 20 ;; -------------------------------------------------------------------------- | |
| 21 ;; ConverterInfo (ebp+..) | |
| 22 ;; 0: void *s_pixels | |
| 23 ;; 4: int s_width | |
| 24 ;; 8: int s_height | |
| 25 ;; 12: int s_add | |
| 26 ;; 16: void *d_pixels | |
| 27 ;; 20: int d_width | |
| 28 ;; 24: int d_height | |
| 29 ;; 28: int d_add | |
| 30 ;; 32: void (*converter_function)() | |
| 31 ;; 36: int32 *lookup | |
| 32 | |
| 33 _ConvertMMX: | |
| 34 push ebp | |
| 35 mov ebp,esp | |
| 36 | |
| 37 ; Save the registers used by the blitters, necessary for optimized code | |
| 38 pusha | |
| 39 | |
| 40 mov eax,[ebp+8] | |
| 41 | |
| 42 cmp dword [eax+4],BYTE 0 | |
| 43 je endconvert | |
| 44 | |
| 45 mov ebp,eax | |
| 46 | |
| 47 mov esi,[ebp+0] | |
| 48 mov edi,[ebp+16] | |
| 49 | |
| 50 y_loop: | |
| 51 mov ecx,[ebp+4] | |
| 52 | |
|
3983
540466e900db
Removed textrels from hermes code.
Ryan C. Gordon <icculus@icculus.org>
parents:
1873
diff
changeset
|
53 call [ebp+32] |
| 0 | 54 |
| 55 add esi,[ebp+12] | |
| 56 add edi,[ebp+28] | |
| 57 | |
| 58 dec dword [ebp+8] | |
| 59 jnz y_loop | |
| 60 | |
| 61 | |
| 62 ; Restore the registers used by the blitters, necessary for optimized code | |
| 63 popa | |
| 64 | |
| 65 pop ebp | |
| 66 | |
| 67 endconvert: | |
| 68 emms | |
| 69 | |
| 70 ret | |
| 71 | |
|
1199
2d6dc7de1145
From: Mike Frysinger <vapier@gentoo.org>
Ryan C. Gordon <icculus@icculus.org>
parents:
1166
diff
changeset
|
72 %ifidn __OUTPUT_FORMAT__,elf |
|
2d6dc7de1145
From: Mike Frysinger <vapier@gentoo.org>
Ryan C. Gordon <icculus@icculus.org>
parents:
1166
diff
changeset
|
73 section .note.GNU-stack noalloc noexec nowrite progbits |
|
2d6dc7de1145
From: Mike Frysinger <vapier@gentoo.org>
Ryan C. Gordon <icculus@icculus.org>
parents:
1166
diff
changeset
|
74 %endif |