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1 ; | 1 ; |
2 ; jcclrmmx.asm - colorspace conversion (MMX) | 2 ; jcclrmmx.asm - colorspace conversion (MMX) |
3 ; | 3 ; |
4 ; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB | 4 ; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB |
5 ; | 5 ; |
6 ; Based on | 6 ; Based on |
7 ; x86 SIMD extension for IJG JPEG library | 7 ; x86 SIMD extension for IJG JPEG library |
8 ; Copyright (C) 1999-2006, MIYASAKA Masaru. | 8 ; Copyright (C) 1999-2006, MIYASAKA Masaru. |
9 ; For conditions of distribution and use, see copyright notice in jsimdext.inc | 9 ; For conditions of distribution and use, see copyright notice in jsimdext.inc |
10 ; | 10 ; |
11 ; This file should be assembled with NASM (Netwide Assembler), | 11 ; This file should be assembled with NASM (Netwide Assembler), |
12 ; can *not* be assembled with Microsoft's MASM or any compatible | 12 ; can *not* be assembled with Microsoft's MASM or any compatible |
13 ; assembler (including Borland's Turbo Assembler). | 13 ; assembler (including Borland's Turbo Assembler). |
14 ; NASM is available from http://nasm.sourceforge.net/ or | 14 ; NASM is available from http://nasm.sourceforge.net/ or |
15 ; http://sourceforge.net/project/showfiles.php?group_id=6208 | 15 ; http://sourceforge.net/project/showfiles.php?group_id=6208 |
16 ; | 16 ; |
17 ; [TAB8] | 17 ; [TAB8] |
18 | 18 |
19 %include "jcolsamp.inc" | 19 %include "jcolsamp.inc" |
20 | 20 |
21 ; -------------------------------------------------------------------------- | 21 ; -------------------------------------------------------------------------- |
| 22 %ifndef NEED_SECTION |
| 23 %define NEED_SECTION |
22 SECTION SEG_TEXT | 24 SECTION SEG_TEXT |
23 BITS 32 | 25 BITS 32 |
| 26 %endif |
| 27 |
24 ; | 28 ; |
25 ; Convert some rows of samples to the output colorspace. | 29 ; Convert some rows of samples to the output colorspace. |
26 ; | 30 ; |
27 ; GLOBAL(void) | 31 ; GLOBAL(void) |
28 ; jsimd_rgb_ycc_convert_mmx (JDIMENSION img_width, | 32 ; jsimd_rgb_ycc_convert_mmx (JDIMENSION img_width, |
29 ; JSAMPARRAY input_buf, JSAMPIMAGE output_buf, | 33 ; JSAMPARRAY input_buf, JSAMPIMAGE output_buf, |
30 ; JDIMENSION output_row, int num_rows); | 34 ; JDIMENSION output_row, int num_rows); |
31 ; | 35 ; |
32 | 36 |
33 %define img_width(b) (b)+8 ; JDIMENSION img_width | 37 %define img_width(b) (b)+8 ; JDIMENSION img_width |
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470 ; pop ecx ; need not be preserved | 474 ; pop ecx ; need not be preserved |
471 pop ebx | 475 pop ebx |
472 mov esp,ebp ; esp <- aligned ebp | 476 mov esp,ebp ; esp <- aligned ebp |
473 pop esp ; esp <- original ebp | 477 pop esp ; esp <- original ebp |
474 pop ebp | 478 pop ebp |
475 ret | 479 ret |
476 | 480 |
477 ; For some reason, the OS X linker does not honor the request to align the | 481 ; For some reason, the OS X linker does not honor the request to align the |
478 ; segment unless we do this. | 482 ; segment unless we do this. |
479 align 16 | 483 align 16 |
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