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1 ; | 1 ; |
2 ; jdcolext.asm - colorspace conversion (64-bit SSE2) | 2 ; jdcolext.asm - colorspace conversion (64-bit SSE2) |
3 ; | 3 ; |
4 ; Copyright 2009, 2012 Pierre Ossman <ossman@cendio.se> for Cendio AB | 4 ; Copyright 2009, 2012 Pierre Ossman <ossman@cendio.se> for Cendio AB |
5 ; Copyright 2009, 2012 D. R. Commander | 5 ; Copyright 2009, 2012 D. R. Commander |
6 ; | 6 ; |
7 ; Based on | 7 ; Based on |
8 ; x86 SIMD extension for IJG JPEG library | 8 ; x86 SIMD extension for IJG JPEG library |
9 ; Copyright (C) 1999-2006, MIYASAKA Masaru. | 9 ; Copyright (C) 1999-2006, MIYASAKA Masaru. |
10 ; For conditions of distribution and use, see copyright notice in jsimdext.inc | 10 ; For conditions of distribution and use, see copyright notice in jsimdext.inc |
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32 ; r10 = JDIMENSION out_width | 32 ; r10 = JDIMENSION out_width |
33 ; r11 = JSAMPIMAGE input_buf | 33 ; r11 = JSAMPIMAGE input_buf |
34 ; r12 = JDIMENSION input_row | 34 ; r12 = JDIMENSION input_row |
35 ; r13 = JSAMPARRAY output_buf | 35 ; r13 = JSAMPARRAY output_buf |
36 ; r14 = int num_rows | 36 ; r14 = int num_rows |
37 | 37 |
38 %define wk(i) rbp-(WK_NUM-(i))*SIZEOF_XMMWORD ; xmmword wk[WK_NUM] | 38 %define wk(i) rbp-(WK_NUM-(i))*SIZEOF_XMMWORD ; xmmword wk[WK_NUM] |
39 %define WK_NUM 2 | 39 %define WK_NUM 2 |
40 | 40 |
41 align 16 | 41 align 16 |
42 global EXTN(jsimd_ycc_rgb_convert_sse2) | 42 global EXTN(jsimd_ycc_rgb_convert_sse2) PRIVATE |
43 | 43 |
44 EXTN(jsimd_ycc_rgb_convert_sse2): | 44 EXTN(jsimd_ycc_rgb_convert_sse2): |
45 push rbp | 45 push rbp |
46 mov rax,rsp ; rax = original rbp | 46 mov rax,rsp ; rax = original rbp |
47 sub rsp, byte 4 | 47 sub rsp, byte 4 |
48 and rsp, byte (-SIZEOF_XMMWORD) ; align to 128 bits | 48 and rsp, byte (-SIZEOF_XMMWORD) ; align to 128 bits |
49 mov [rsp],rax | 49 mov [rsp],rax |
50 mov rbp,rsp ; rbp = aligned rbp | 50 mov rbp,rsp ; rbp = aligned rbp |
51 lea rsp, [wk(0)] | 51 lea rsp, [wk(0)] |
52 collect_args | 52 collect_args |
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432 pop rbx | 432 pop rbx |
433 uncollect_args | 433 uncollect_args |
434 mov rsp,rbp ; rsp <- aligned rbp | 434 mov rsp,rbp ; rsp <- aligned rbp |
435 pop rsp ; rsp <- original rbp | 435 pop rsp ; rsp <- original rbp |
436 pop rbp | 436 pop rbp |
437 ret | 437 ret |
438 | 438 |
439 ; For some reason, the OS X linker does not honor the request to align the | 439 ; For some reason, the OS X linker does not honor the request to align the |
440 ; segment unless we do this. | 440 ; segment unless we do this. |
441 align 16 | 441 align 16 |
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