зеркало из https://github.com/mozilla/pjs.git
480 строки
13 KiB
NASM
480 строки
13 KiB
NASM
;
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; jcclrmmx.asm - colorspace conversion (MMX)
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;
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; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
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;
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; Based on
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; x86 SIMD extension for IJG JPEG library
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; Copyright (C) 1999-2006, MIYASAKA Masaru.
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; For conditions of distribution and use, see copyright notice in jsimdext.inc
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;
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; This file should be assembled with NASM (Netwide Assembler),
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; can *not* be assembled with Microsoft's MASM or any compatible
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; assembler (including Borland's Turbo Assembler).
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; NASM is available from http://nasm.sourceforge.net/ or
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; http://sourceforge.net/project/showfiles.php?group_id=6208
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;
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; [TAB8]
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%include "jcolsamp.inc"
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; --------------------------------------------------------------------------
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SECTION SEG_TEXT
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BITS 32
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;
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; Convert some rows of samples to the output colorspace.
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;
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; GLOBAL(void)
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; jsimd_rgb_ycc_convert_mmx (JDIMENSION img_width,
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; JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
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; JDIMENSION output_row, int num_rows);
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;
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%define img_width(b) (b)+8 ; JDIMENSION img_width
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%define input_buf(b) (b)+12 ; JSAMPARRAY input_buf
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%define output_buf(b) (b)+16 ; JSAMPIMAGE output_buf
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%define output_row(b) (b)+20 ; JDIMENSION output_row
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%define num_rows(b) (b)+24 ; int num_rows
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%define original_ebp ebp+0
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%define wk(i) ebp-(WK_NUM-(i))*SIZEOF_MMWORD ; mmword wk[WK_NUM]
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%define WK_NUM 8
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%define gotptr wk(0)-SIZEOF_POINTER ; void * gotptr
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align 16
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global EXTN(jsimd_rgb_ycc_convert_mmx)
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EXTN(jsimd_rgb_ycc_convert_mmx):
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push ebp
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mov eax,esp ; eax = original ebp
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sub esp, byte 4
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and esp, byte (-SIZEOF_MMWORD) ; align to 64 bits
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mov [esp],eax
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mov ebp,esp ; ebp = aligned ebp
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lea esp, [wk(0)]
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pushpic eax ; make a room for GOT address
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push ebx
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; push ecx ; need not be preserved
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; push edx ; need not be preserved
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push esi
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push edi
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get_GOT ebx ; get GOT address
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movpic POINTER [gotptr], ebx ; save GOT address
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mov ecx, JDIMENSION [img_width(eax)] ; num_cols
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test ecx,ecx
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jz near .return
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push ecx
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mov esi, JSAMPIMAGE [output_buf(eax)]
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mov ecx, JDIMENSION [output_row(eax)]
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mov edi, JSAMPARRAY [esi+0*SIZEOF_JSAMPARRAY]
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mov ebx, JSAMPARRAY [esi+1*SIZEOF_JSAMPARRAY]
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mov edx, JSAMPARRAY [esi+2*SIZEOF_JSAMPARRAY]
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lea edi, [edi+ecx*SIZEOF_JSAMPROW]
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lea ebx, [ebx+ecx*SIZEOF_JSAMPROW]
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lea edx, [edx+ecx*SIZEOF_JSAMPROW]
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pop ecx
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mov esi, JSAMPARRAY [input_buf(eax)]
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mov eax, INT [num_rows(eax)]
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test eax,eax
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jle near .return
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alignx 16,7
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.rowloop:
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pushpic eax
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push edx
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push ebx
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push edi
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push esi
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push ecx ; col
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mov esi, JSAMPROW [esi] ; inptr
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mov edi, JSAMPROW [edi] ; outptr0
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mov ebx, JSAMPROW [ebx] ; outptr1
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mov edx, JSAMPROW [edx] ; outptr2
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movpic eax, POINTER [gotptr] ; load GOT address (eax)
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cmp ecx, byte SIZEOF_MMWORD
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jae short .columnloop
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alignx 16,7
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%if RGB_PIXELSIZE == 3 ; ---------------
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.column_ld1:
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push eax
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push edx
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lea ecx,[ecx+ecx*2] ; imul ecx,RGB_PIXELSIZE
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test cl, SIZEOF_BYTE
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jz short .column_ld2
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sub ecx, byte SIZEOF_BYTE
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xor eax,eax
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mov al, BYTE [esi+ecx]
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.column_ld2:
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test cl, SIZEOF_WORD
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jz short .column_ld4
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sub ecx, byte SIZEOF_WORD
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xor edx,edx
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mov dx, WORD [esi+ecx]
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shl eax, WORD_BIT
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or eax,edx
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.column_ld4:
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movd mmA,eax
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pop edx
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pop eax
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test cl, SIZEOF_DWORD
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jz short .column_ld8
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sub ecx, byte SIZEOF_DWORD
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movd mmG, DWORD [esi+ecx]
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psllq mmA, DWORD_BIT
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por mmA,mmG
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.column_ld8:
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test cl, SIZEOF_MMWORD
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jz short .column_ld16
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movq mmG,mmA
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movq mmA, MMWORD [esi+0*SIZEOF_MMWORD]
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mov ecx, SIZEOF_MMWORD
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jmp short .rgb_ycc_cnv
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.column_ld16:
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test cl, 2*SIZEOF_MMWORD
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mov ecx, SIZEOF_MMWORD
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jz short .rgb_ycc_cnv
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movq mmF,mmA
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movq mmA, MMWORD [esi+0*SIZEOF_MMWORD]
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movq mmG, MMWORD [esi+1*SIZEOF_MMWORD]
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jmp short .rgb_ycc_cnv
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alignx 16,7
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.columnloop:
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movq mmA, MMWORD [esi+0*SIZEOF_MMWORD]
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movq mmG, MMWORD [esi+1*SIZEOF_MMWORD]
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movq mmF, MMWORD [esi+2*SIZEOF_MMWORD]
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.rgb_ycc_cnv:
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; mmA=(00 10 20 01 11 21 02 12)
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; mmG=(22 03 13 23 04 14 24 05)
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; mmF=(15 25 06 16 26 07 17 27)
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movq mmD,mmA
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psllq mmA,4*BYTE_BIT ; mmA=(-- -- -- -- 00 10 20 01)
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psrlq mmD,4*BYTE_BIT ; mmD=(11 21 02 12 -- -- -- --)
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punpckhbw mmA,mmG ; mmA=(00 04 10 14 20 24 01 05)
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psllq mmG,4*BYTE_BIT ; mmG=(-- -- -- -- 22 03 13 23)
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punpcklbw mmD,mmF ; mmD=(11 15 21 25 02 06 12 16)
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punpckhbw mmG,mmF ; mmG=(22 26 03 07 13 17 23 27)
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movq mmE,mmA
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psllq mmA,4*BYTE_BIT ; mmA=(-- -- -- -- 00 04 10 14)
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psrlq mmE,4*BYTE_BIT ; mmE=(20 24 01 05 -- -- -- --)
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punpckhbw mmA,mmD ; mmA=(00 02 04 06 10 12 14 16)
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psllq mmD,4*BYTE_BIT ; mmD=(-- -- -- -- 11 15 21 25)
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punpcklbw mmE,mmG ; mmE=(20 22 24 26 01 03 05 07)
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punpckhbw mmD,mmG ; mmD=(11 13 15 17 21 23 25 27)
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pxor mmH,mmH
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movq mmC,mmA
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punpcklbw mmA,mmH ; mmA=(00 02 04 06)
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punpckhbw mmC,mmH ; mmC=(10 12 14 16)
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movq mmB,mmE
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punpcklbw mmE,mmH ; mmE=(20 22 24 26)
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punpckhbw mmB,mmH ; mmB=(01 03 05 07)
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movq mmF,mmD
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punpcklbw mmD,mmH ; mmD=(11 13 15 17)
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punpckhbw mmF,mmH ; mmF=(21 23 25 27)
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%else ; RGB_PIXELSIZE == 4 ; -----------
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.column_ld1:
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test cl, SIZEOF_MMWORD/8
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jz short .column_ld2
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sub ecx, byte SIZEOF_MMWORD/8
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movd mmA, DWORD [esi+ecx*RGB_PIXELSIZE]
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.column_ld2:
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test cl, SIZEOF_MMWORD/4
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jz short .column_ld4
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sub ecx, byte SIZEOF_MMWORD/4
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movq mmF,mmA
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movq mmA, MMWORD [esi+ecx*RGB_PIXELSIZE]
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.column_ld4:
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test cl, SIZEOF_MMWORD/2
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mov ecx, SIZEOF_MMWORD
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jz short .rgb_ycc_cnv
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movq mmD,mmA
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movq mmC,mmF
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movq mmA, MMWORD [esi+0*SIZEOF_MMWORD]
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movq mmF, MMWORD [esi+1*SIZEOF_MMWORD]
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jmp short .rgb_ycc_cnv
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alignx 16,7
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.columnloop:
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movq mmA, MMWORD [esi+0*SIZEOF_MMWORD]
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movq mmF, MMWORD [esi+1*SIZEOF_MMWORD]
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movq mmD, MMWORD [esi+2*SIZEOF_MMWORD]
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movq mmC, MMWORD [esi+3*SIZEOF_MMWORD]
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.rgb_ycc_cnv:
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; mmA=(00 10 20 30 01 11 21 31)
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; mmF=(02 12 22 32 03 13 23 33)
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; mmD=(04 14 24 34 05 15 25 35)
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; mmC=(06 16 26 36 07 17 27 37)
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movq mmB,mmA
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punpcklbw mmA,mmF ; mmA=(00 02 10 12 20 22 30 32)
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punpckhbw mmB,mmF ; mmB=(01 03 11 13 21 23 31 33)
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movq mmG,mmD
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punpcklbw mmD,mmC ; mmD=(04 06 14 16 24 26 34 36)
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punpckhbw mmG,mmC ; mmG=(05 07 15 17 25 27 35 37)
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movq mmE,mmA
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punpcklwd mmA,mmD ; mmA=(00 02 04 06 10 12 14 16)
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punpckhwd mmE,mmD ; mmE=(20 22 24 26 30 32 34 36)
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movq mmH,mmB
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punpcklwd mmB,mmG ; mmB=(01 03 05 07 11 13 15 17)
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punpckhwd mmH,mmG ; mmH=(21 23 25 27 31 33 35 37)
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pxor mmF,mmF
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movq mmC,mmA
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punpcklbw mmA,mmF ; mmA=(00 02 04 06)
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punpckhbw mmC,mmF ; mmC=(10 12 14 16)
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movq mmD,mmB
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punpcklbw mmB,mmF ; mmB=(01 03 05 07)
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punpckhbw mmD,mmF ; mmD=(11 13 15 17)
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movq mmG,mmE
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punpcklbw mmE,mmF ; mmE=(20 22 24 26)
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punpckhbw mmG,mmF ; mmG=(30 32 34 36)
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punpcklbw mmF,mmH
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punpckhbw mmH,mmH
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psrlw mmF,BYTE_BIT ; mmF=(21 23 25 27)
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psrlw mmH,BYTE_BIT ; mmH=(31 33 35 37)
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%endif ; RGB_PIXELSIZE ; ---------------
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; mm0=(R0 R2 R4 R6)=RE, mm2=(G0 G2 G4 G6)=GE, mm4=(B0 B2 B4 B6)=BE
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; mm1=(R1 R3 R5 R7)=RO, mm3=(G1 G3 G5 G7)=GO, mm5=(B1 B3 B5 B7)=BO
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; (Original)
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; Y = 0.29900 * R + 0.58700 * G + 0.11400 * B
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; Cb = -0.16874 * R - 0.33126 * G + 0.50000 * B + CENTERJSAMPLE
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; Cr = 0.50000 * R - 0.41869 * G - 0.08131 * B + CENTERJSAMPLE
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;
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; (This implementation)
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; Y = 0.29900 * R + 0.33700 * G + 0.11400 * B + 0.25000 * G
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; Cb = -0.16874 * R - 0.33126 * G + 0.50000 * B + CENTERJSAMPLE
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; Cr = 0.50000 * R - 0.41869 * G - 0.08131 * B + CENTERJSAMPLE
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movq MMWORD [wk(0)], mm0 ; wk(0)=RE
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movq MMWORD [wk(1)], mm1 ; wk(1)=RO
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movq MMWORD [wk(2)], mm4 ; wk(2)=BE
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movq MMWORD [wk(3)], mm5 ; wk(3)=BO
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movq mm6,mm1
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punpcklwd mm1,mm3
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punpckhwd mm6,mm3
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movq mm7,mm1
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movq mm4,mm6
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pmaddwd mm1,[GOTOFF(eax,PW_F0299_F0337)] ; mm1=ROL*FIX(0.299)+GOL*FIX(0.337)
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pmaddwd mm6,[GOTOFF(eax,PW_F0299_F0337)] ; mm6=ROH*FIX(0.299)+GOH*FIX(0.337)
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pmaddwd mm7,[GOTOFF(eax,PW_MF016_MF033)] ; mm7=ROL*-FIX(0.168)+GOL*-FIX(0.331)
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pmaddwd mm4,[GOTOFF(eax,PW_MF016_MF033)] ; mm4=ROH*-FIX(0.168)+GOH*-FIX(0.331)
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movq MMWORD [wk(4)], mm1 ; wk(4)=ROL*FIX(0.299)+GOL*FIX(0.337)
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movq MMWORD [wk(5)], mm6 ; wk(5)=ROH*FIX(0.299)+GOH*FIX(0.337)
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pxor mm1,mm1
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pxor mm6,mm6
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punpcklwd mm1,mm5 ; mm1=BOL
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punpckhwd mm6,mm5 ; mm6=BOH
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psrld mm1,1 ; mm1=BOL*FIX(0.500)
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psrld mm6,1 ; mm6=BOH*FIX(0.500)
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movq mm5,[GOTOFF(eax,PD_ONEHALFM1_CJ)] ; mm5=[PD_ONEHALFM1_CJ]
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paddd mm7,mm1
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paddd mm4,mm6
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paddd mm7,mm5
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paddd mm4,mm5
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psrld mm7,SCALEBITS ; mm7=CbOL
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psrld mm4,SCALEBITS ; mm4=CbOH
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packssdw mm7,mm4 ; mm7=CbO
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movq mm1, MMWORD [wk(2)] ; mm1=BE
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movq mm6,mm0
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punpcklwd mm0,mm2
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punpckhwd mm6,mm2
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movq mm5,mm0
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movq mm4,mm6
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pmaddwd mm0,[GOTOFF(eax,PW_F0299_F0337)] ; mm0=REL*FIX(0.299)+GEL*FIX(0.337)
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pmaddwd mm6,[GOTOFF(eax,PW_F0299_F0337)] ; mm6=REH*FIX(0.299)+GEH*FIX(0.337)
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pmaddwd mm5,[GOTOFF(eax,PW_MF016_MF033)] ; mm5=REL*-FIX(0.168)+GEL*-FIX(0.331)
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pmaddwd mm4,[GOTOFF(eax,PW_MF016_MF033)] ; mm4=REH*-FIX(0.168)+GEH*-FIX(0.331)
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movq MMWORD [wk(6)], mm0 ; wk(6)=REL*FIX(0.299)+GEL*FIX(0.337)
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movq MMWORD [wk(7)], mm6 ; wk(7)=REH*FIX(0.299)+GEH*FIX(0.337)
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pxor mm0,mm0
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pxor mm6,mm6
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punpcklwd mm0,mm1 ; mm0=BEL
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punpckhwd mm6,mm1 ; mm6=BEH
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psrld mm0,1 ; mm0=BEL*FIX(0.500)
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psrld mm6,1 ; mm6=BEH*FIX(0.500)
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movq mm1,[GOTOFF(eax,PD_ONEHALFM1_CJ)] ; mm1=[PD_ONEHALFM1_CJ]
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paddd mm5,mm0
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paddd mm4,mm6
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paddd mm5,mm1
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paddd mm4,mm1
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psrld mm5,SCALEBITS ; mm5=CbEL
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psrld mm4,SCALEBITS ; mm4=CbEH
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packssdw mm5,mm4 ; mm5=CbE
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psllw mm7,BYTE_BIT
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por mm5,mm7 ; mm5=Cb
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movq MMWORD [ebx], mm5 ; Save Cb
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movq mm0, MMWORD [wk(3)] ; mm0=BO
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movq mm6, MMWORD [wk(2)] ; mm6=BE
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movq mm1, MMWORD [wk(1)] ; mm1=RO
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movq mm4,mm0
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punpcklwd mm0,mm3
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punpckhwd mm4,mm3
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movq mm7,mm0
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movq mm5,mm4
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pmaddwd mm0,[GOTOFF(eax,PW_F0114_F0250)] ; mm0=BOL*FIX(0.114)+GOL*FIX(0.250)
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pmaddwd mm4,[GOTOFF(eax,PW_F0114_F0250)] ; mm4=BOH*FIX(0.114)+GOH*FIX(0.250)
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pmaddwd mm7,[GOTOFF(eax,PW_MF008_MF041)] ; mm7=BOL*-FIX(0.081)+GOL*-FIX(0.418)
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pmaddwd mm5,[GOTOFF(eax,PW_MF008_MF041)] ; mm5=BOH*-FIX(0.081)+GOH*-FIX(0.418)
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movq mm3,[GOTOFF(eax,PD_ONEHALF)] ; mm3=[PD_ONEHALF]
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paddd mm0, MMWORD [wk(4)]
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paddd mm4, MMWORD [wk(5)]
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paddd mm0,mm3
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paddd mm4,mm3
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psrld mm0,SCALEBITS ; mm0=YOL
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psrld mm4,SCALEBITS ; mm4=YOH
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packssdw mm0,mm4 ; mm0=YO
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pxor mm3,mm3
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pxor mm4,mm4
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punpcklwd mm3,mm1 ; mm3=ROL
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punpckhwd mm4,mm1 ; mm4=ROH
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psrld mm3,1 ; mm3=ROL*FIX(0.500)
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psrld mm4,1 ; mm4=ROH*FIX(0.500)
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movq mm1,[GOTOFF(eax,PD_ONEHALFM1_CJ)] ; mm1=[PD_ONEHALFM1_CJ]
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paddd mm7,mm3
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paddd mm5,mm4
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paddd mm7,mm1
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paddd mm5,mm1
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psrld mm7,SCALEBITS ; mm7=CrOL
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psrld mm5,SCALEBITS ; mm5=CrOH
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packssdw mm7,mm5 ; mm7=CrO
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movq mm3, MMWORD [wk(0)] ; mm3=RE
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movq mm4,mm6
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punpcklwd mm6,mm2
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punpckhwd mm4,mm2
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movq mm1,mm6
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movq mm5,mm4
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pmaddwd mm6,[GOTOFF(eax,PW_F0114_F0250)] ; mm6=BEL*FIX(0.114)+GEL*FIX(0.250)
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pmaddwd mm4,[GOTOFF(eax,PW_F0114_F0250)] ; mm4=BEH*FIX(0.114)+GEH*FIX(0.250)
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pmaddwd mm1,[GOTOFF(eax,PW_MF008_MF041)] ; mm1=BEL*-FIX(0.081)+GEL*-FIX(0.418)
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pmaddwd mm5,[GOTOFF(eax,PW_MF008_MF041)] ; mm5=BEH*-FIX(0.081)+GEH*-FIX(0.418)
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movq mm2,[GOTOFF(eax,PD_ONEHALF)] ; mm2=[PD_ONEHALF]
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paddd mm6, MMWORD [wk(6)]
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paddd mm4, MMWORD [wk(7)]
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paddd mm6,mm2
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paddd mm4,mm2
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psrld mm6,SCALEBITS ; mm6=YEL
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psrld mm4,SCALEBITS ; mm4=YEH
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packssdw mm6,mm4 ; mm6=YE
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psllw mm0,BYTE_BIT
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por mm6,mm0 ; mm6=Y
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movq MMWORD [edi], mm6 ; Save Y
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|
|
pxor mm2,mm2
|
|
pxor mm4,mm4
|
|
punpcklwd mm2,mm3 ; mm2=REL
|
|
punpckhwd mm4,mm3 ; mm4=REH
|
|
psrld mm2,1 ; mm2=REL*FIX(0.500)
|
|
psrld mm4,1 ; mm4=REH*FIX(0.500)
|
|
|
|
movq mm0,[GOTOFF(eax,PD_ONEHALFM1_CJ)] ; mm0=[PD_ONEHALFM1_CJ]
|
|
|
|
paddd mm1,mm2
|
|
paddd mm5,mm4
|
|
paddd mm1,mm0
|
|
paddd mm5,mm0
|
|
psrld mm1,SCALEBITS ; mm1=CrEL
|
|
psrld mm5,SCALEBITS ; mm5=CrEH
|
|
packssdw mm1,mm5 ; mm1=CrE
|
|
|
|
psllw mm7,BYTE_BIT
|
|
por mm1,mm7 ; mm1=Cr
|
|
movq MMWORD [edx], mm1 ; Save Cr
|
|
|
|
sub ecx, byte SIZEOF_MMWORD
|
|
add esi, byte RGB_PIXELSIZE*SIZEOF_MMWORD ; inptr
|
|
add edi, byte SIZEOF_MMWORD ; outptr0
|
|
add ebx, byte SIZEOF_MMWORD ; outptr1
|
|
add edx, byte SIZEOF_MMWORD ; outptr2
|
|
cmp ecx, byte SIZEOF_MMWORD
|
|
jae near .columnloop
|
|
test ecx,ecx
|
|
jnz near .column_ld1
|
|
|
|
pop ecx ; col
|
|
pop esi
|
|
pop edi
|
|
pop ebx
|
|
pop edx
|
|
poppic eax
|
|
|
|
add esi, byte SIZEOF_JSAMPROW ; input_buf
|
|
add edi, byte SIZEOF_JSAMPROW
|
|
add ebx, byte SIZEOF_JSAMPROW
|
|
add edx, byte SIZEOF_JSAMPROW
|
|
dec eax ; num_rows
|
|
jg near .rowloop
|
|
|
|
emms ; empty MMX state
|
|
|
|
.return:
|
|
pop edi
|
|
pop esi
|
|
; pop edx ; need not be preserved
|
|
; pop ecx ; need not be preserved
|
|
pop ebx
|
|
mov esp,ebp ; esp <- aligned ebp
|
|
pop esp ; esp <- original ebp
|
|
pop ebp
|
|
ret
|
|
|
|
; For some reason, the OS X linker does not honor the request to align the
|
|
; segment unless we do this.
|
|
align 16
|