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Unified Diff: simd/jdsammmx.asm

Issue 1939823002: Update to libjpeg_turbo 1.4.90 (Closed) Base URL: https://chromium.googlesource.com/chromium/deps/libjpeg_turbo.git@master
Patch Set: Response to comments Created 4 years, 7 months ago
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Index: simd/jdsammmx.asm
diff --git a/simd/jdsammmx.asm b/simd/jdsammmx.asm
deleted file mode 100644
index d92a8c9b0dc70fe923cf357e82c8e3e2fef725ef..0000000000000000000000000000000000000000
--- a/simd/jdsammmx.asm
+++ /dev/null
@@ -1,737 +0,0 @@
-;
-; jdsammmx.asm - upsampling (MMX)
-;
-; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
-;
-; Based on
-; x86 SIMD extension for IJG JPEG library
-; Copyright (C) 1999-2006, MIYASAKA Masaru.
-; For conditions of distribution and use, see copyright notice in jsimdext.inc
-;
-; This file should be assembled with NASM (Netwide Assembler),
-; can *not* be assembled with Microsoft's MASM or any compatible
-; assembler (including Borland's Turbo Assembler).
-; NASM is available from http://nasm.sourceforge.net/ or
-; http://sourceforge.net/project/showfiles.php?group_id=6208
-;
-; [TAB8]
-
-%include "jsimdext.inc"
-
-; --------------------------------------------------------------------------
- SECTION SEG_CONST
-
- alignz 16
- global EXTN(jconst_fancy_upsample_mmx) PRIVATE
-
-EXTN(jconst_fancy_upsample_mmx):
-
-PW_ONE times 4 dw 1
-PW_TWO times 4 dw 2
-PW_THREE times 4 dw 3
-PW_SEVEN times 4 dw 7
-PW_EIGHT times 4 dw 8
-
- alignz 16
-
-; --------------------------------------------------------------------------
- SECTION SEG_TEXT
- BITS 32
-;
-; Fancy processing for the common case of 2:1 horizontal and 1:1 vertical.
-;
-; The upsampling algorithm is linear interpolation between pixel centers,
-; also known as a "triangle filter". This is a good compromise between
-; speed and visual quality. The centers of the output pixels are 1/4 and 3/4
-; of the way between input pixel centers.
-;
-; GLOBAL(void)
-; jsimd_h2v1_fancy_upsample_mmx (int max_v_samp_factor,
-; JDIMENSION downsampled_width,
-; JSAMPARRAY input_data,
-; JSAMPARRAY * output_data_ptr);
-;
-
-%define max_v_samp(b) (b)+8 ; int max_v_samp_factor
-%define downsamp_width(b) (b)+12 ; JDIMENSION downsampled_width
-%define input_data(b) (b)+16 ; JSAMPARRAY input_data
-%define output_data_ptr(b) (b)+20 ; JSAMPARRAY * output_data_ptr
-
- align 16
- global EXTN(jsimd_h2v1_fancy_upsample_mmx) PRIVATE
-
-EXTN(jsimd_h2v1_fancy_upsample_mmx):
- push ebp
- mov ebp,esp
- pushpic ebx
-; push ecx ; need not be preserved
-; push edx ; need not be preserved
- push esi
- push edi
-
- get_GOT ebx ; get GOT address
-
- mov eax, JDIMENSION [downsamp_width(ebp)] ; colctr
- test eax,eax
- jz near .return
-
- mov ecx, INT [max_v_samp(ebp)] ; rowctr
- test ecx,ecx
- jz near .return
-
- mov esi, JSAMPARRAY [input_data(ebp)] ; input_data
- mov edi, POINTER [output_data_ptr(ebp)]
- mov edi, JSAMPARRAY [edi] ; output_data
- alignx 16,7
-.rowloop:
- push eax ; colctr
- push edi
- push esi
-
- mov esi, JSAMPROW [esi] ; inptr
- mov edi, JSAMPROW [edi] ; outptr
-
- test eax, SIZEOF_MMWORD-1
- jz short .skip
- mov dl, JSAMPLE [esi+(eax-1)*SIZEOF_JSAMPLE]
- mov JSAMPLE [esi+eax*SIZEOF_JSAMPLE], dl ; insert a dummy sample
-.skip:
- pxor mm0,mm0 ; mm0=(all 0's)
- pcmpeqb mm7,mm7
- psrlq mm7,(SIZEOF_MMWORD-1)*BYTE_BIT
- pand mm7, MMWORD [esi+0*SIZEOF_MMWORD]
-
- add eax, byte SIZEOF_MMWORD-1
- and eax, byte -SIZEOF_MMWORD
- cmp eax, byte SIZEOF_MMWORD
- ja short .columnloop
- alignx 16,7
-
-.columnloop_last:
- pcmpeqb mm6,mm6
- psllq mm6,(SIZEOF_MMWORD-1)*BYTE_BIT
- pand mm6, MMWORD [esi+0*SIZEOF_MMWORD]
- jmp short .upsample
- alignx 16,7
-
-.columnloop:
- movq mm6, MMWORD [esi+1*SIZEOF_MMWORD]
- psllq mm6,(SIZEOF_MMWORD-1)*BYTE_BIT
-
-.upsample:
- movq mm1, MMWORD [esi+0*SIZEOF_MMWORD]
- movq mm2,mm1
- movq mm3,mm1 ; mm1=( 0 1 2 3 4 5 6 7)
- psllq mm2,BYTE_BIT ; mm2=( - 0 1 2 3 4 5 6)
- psrlq mm3,BYTE_BIT ; mm3=( 1 2 3 4 5 6 7 -)
-
- por mm2,mm7 ; mm2=(-1 0 1 2 3 4 5 6)
- por mm3,mm6 ; mm3=( 1 2 3 4 5 6 7 8)
-
- movq mm7,mm1
- psrlq mm7,(SIZEOF_MMWORD-1)*BYTE_BIT ; mm7=( 7 - - - - - - -)
-
- movq mm4,mm1
- punpcklbw mm1,mm0 ; mm1=( 0 1 2 3)
- punpckhbw mm4,mm0 ; mm4=( 4 5 6 7)
- movq mm5,mm2
- punpcklbw mm2,mm0 ; mm2=(-1 0 1 2)
- punpckhbw mm5,mm0 ; mm5=( 3 4 5 6)
- movq mm6,mm3
- punpcklbw mm3,mm0 ; mm3=( 1 2 3 4)
- punpckhbw mm6,mm0 ; mm6=( 5 6 7 8)
-
- pmullw mm1,[GOTOFF(ebx,PW_THREE)]
- pmullw mm4,[GOTOFF(ebx,PW_THREE)]
- paddw mm2,[GOTOFF(ebx,PW_ONE)]
- paddw mm5,[GOTOFF(ebx,PW_ONE)]
- paddw mm3,[GOTOFF(ebx,PW_TWO)]
- paddw mm6,[GOTOFF(ebx,PW_TWO)]
-
- paddw mm2,mm1
- paddw mm5,mm4
- psrlw mm2,2 ; mm2=OutLE=( 0 2 4 6)
- psrlw mm5,2 ; mm5=OutHE=( 8 10 12 14)
- paddw mm3,mm1
- paddw mm6,mm4
- psrlw mm3,2 ; mm3=OutLO=( 1 3 5 7)
- psrlw mm6,2 ; mm6=OutHO=( 9 11 13 15)
-
- psllw mm3,BYTE_BIT
- psllw mm6,BYTE_BIT
- por mm2,mm3 ; mm2=OutL=( 0 1 2 3 4 5 6 7)
- por mm5,mm6 ; mm5=OutH=( 8 9 10 11 12 13 14 15)
-
- movq MMWORD [edi+0*SIZEOF_MMWORD], mm2
- movq MMWORD [edi+1*SIZEOF_MMWORD], mm5
-
- sub eax, byte SIZEOF_MMWORD
- add esi, byte 1*SIZEOF_MMWORD ; inptr
- add edi, byte 2*SIZEOF_MMWORD ; outptr
- cmp eax, byte SIZEOF_MMWORD
- ja near .columnloop
- test eax,eax
- jnz near .columnloop_last
-
- pop esi
- pop edi
- pop eax
-
- add esi, byte SIZEOF_JSAMPROW ; input_data
- add edi, byte SIZEOF_JSAMPROW ; output_data
- dec ecx ; rowctr
- jg near .rowloop
-
- emms ; empty MMX state
-
-.return:
- pop edi
- pop esi
-; pop edx ; need not be preserved
-; pop ecx ; need not be preserved
- poppic ebx
- pop ebp
- ret
-
-; --------------------------------------------------------------------------
-;
-; Fancy processing for the common case of 2:1 horizontal and 2:1 vertical.
-; Again a triangle filter; see comments for h2v1 case, above.
-;
-; GLOBAL(void)
-; jsimd_h2v2_fancy_upsample_mmx (int max_v_samp_factor,
-; JDIMENSION downsampled_width,
-; JSAMPARRAY input_data,
-; JSAMPARRAY * output_data_ptr);
-;
-
-%define max_v_samp(b) (b)+8 ; int max_v_samp_factor
-%define downsamp_width(b) (b)+12 ; JDIMENSION downsampled_width
-%define input_data(b) (b)+16 ; JSAMPARRAY input_data
-%define output_data_ptr(b) (b)+20 ; JSAMPARRAY * output_data_ptr
-
-%define original_ebp ebp+0
-%define wk(i) ebp-(WK_NUM-(i))*SIZEOF_MMWORD ; mmword wk[WK_NUM]
-%define WK_NUM 4
-%define gotptr wk(0)-SIZEOF_POINTER ; void * gotptr
-
- align 16
- global EXTN(jsimd_h2v2_fancy_upsample_mmx) PRIVATE
-
-EXTN(jsimd_h2v2_fancy_upsample_mmx):
- push ebp
- mov eax,esp ; eax = original ebp
- sub esp, byte 4
- and esp, byte (-SIZEOF_MMWORD) ; align to 64 bits
- mov [esp],eax
- mov ebp,esp ; ebp = aligned ebp
- lea esp, [wk(0)]
- pushpic eax ; make a room for GOT address
- push ebx
-; push ecx ; need not be preserved
-; push edx ; need not be preserved
- push esi
- push edi
-
- get_GOT ebx ; get GOT address
- movpic POINTER [gotptr], ebx ; save GOT address
-
- mov edx,eax ; edx = original ebp
- mov eax, JDIMENSION [downsamp_width(edx)] ; colctr
- test eax,eax
- jz near .return
-
- mov ecx, INT [max_v_samp(edx)] ; rowctr
- test ecx,ecx
- jz near .return
-
- mov esi, JSAMPARRAY [input_data(edx)] ; input_data
- mov edi, POINTER [output_data_ptr(edx)]
- mov edi, JSAMPARRAY [edi] ; output_data
- alignx 16,7
-.rowloop:
- push eax ; colctr
- push ecx
- push edi
- push esi
-
- mov ecx, JSAMPROW [esi-1*SIZEOF_JSAMPROW] ; inptr1(above)
- mov ebx, JSAMPROW [esi+0*SIZEOF_JSAMPROW] ; inptr0
- mov esi, JSAMPROW [esi+1*SIZEOF_JSAMPROW] ; inptr1(below)
- mov edx, JSAMPROW [edi+0*SIZEOF_JSAMPROW] ; outptr0
- mov edi, JSAMPROW [edi+1*SIZEOF_JSAMPROW] ; outptr1
-
- test eax, SIZEOF_MMWORD-1
- jz short .skip
- push edx
- mov dl, JSAMPLE [ecx+(eax-1)*SIZEOF_JSAMPLE]
- mov JSAMPLE [ecx+eax*SIZEOF_JSAMPLE], dl
- mov dl, JSAMPLE [ebx+(eax-1)*SIZEOF_JSAMPLE]
- mov JSAMPLE [ebx+eax*SIZEOF_JSAMPLE], dl
- mov dl, JSAMPLE [esi+(eax-1)*SIZEOF_JSAMPLE]
- mov JSAMPLE [esi+eax*SIZEOF_JSAMPLE], dl ; insert a dummy sample
- pop edx
-.skip:
- ; -- process the first column block
-
- movq mm0, MMWORD [ebx+0*SIZEOF_MMWORD] ; mm0=row[ 0][0]
- movq mm1, MMWORD [ecx+0*SIZEOF_MMWORD] ; mm1=row[-1][0]
- movq mm2, MMWORD [esi+0*SIZEOF_MMWORD] ; mm2=row[+1][0]
-
- pushpic ebx
- movpic ebx, POINTER [gotptr] ; load GOT address
-
- pxor mm3,mm3 ; mm3=(all 0's)
- movq mm4,mm0
- punpcklbw mm0,mm3 ; mm0=row[ 0][0]( 0 1 2 3)
- punpckhbw mm4,mm3 ; mm4=row[ 0][0]( 4 5 6 7)
- movq mm5,mm1
- punpcklbw mm1,mm3 ; mm1=row[-1][0]( 0 1 2 3)
- punpckhbw mm5,mm3 ; mm5=row[-1][0]( 4 5 6 7)
- movq mm6,mm2
- punpcklbw mm2,mm3 ; mm2=row[+1][0]( 0 1 2 3)
- punpckhbw mm6,mm3 ; mm6=row[+1][0]( 4 5 6 7)
-
- pmullw mm0,[GOTOFF(ebx,PW_THREE)]
- pmullw mm4,[GOTOFF(ebx,PW_THREE)]
-
- pcmpeqb mm7,mm7
- psrlq mm7,(SIZEOF_MMWORD-2)*BYTE_BIT
-
- paddw mm1,mm0 ; mm1=Int0L=( 0 1 2 3)
- paddw mm5,mm4 ; mm5=Int0H=( 4 5 6 7)
- paddw mm2,mm0 ; mm2=Int1L=( 0 1 2 3)
- paddw mm6,mm4 ; mm6=Int1H=( 4 5 6 7)
-
- movq MMWORD [edx+0*SIZEOF_MMWORD], mm1 ; temporarily save
- movq MMWORD [edx+1*SIZEOF_MMWORD], mm5 ; the intermediate data
- movq MMWORD [edi+0*SIZEOF_MMWORD], mm2
- movq MMWORD [edi+1*SIZEOF_MMWORD], mm6
-
- pand mm1,mm7 ; mm1=( 0 - - -)
- pand mm2,mm7 ; mm2=( 0 - - -)
-
- movq MMWORD [wk(0)], mm1
- movq MMWORD [wk(1)], mm2
-
- poppic ebx
-
- add eax, byte SIZEOF_MMWORD-1
- and eax, byte -SIZEOF_MMWORD
- cmp eax, byte SIZEOF_MMWORD
- ja short .columnloop
- alignx 16,7
-
-.columnloop_last:
- ; -- process the last column block
-
- pushpic ebx
- movpic ebx, POINTER [gotptr] ; load GOT address
-
- pcmpeqb mm1,mm1
- psllq mm1,(SIZEOF_MMWORD-2)*BYTE_BIT
- movq mm2,mm1
-
- pand mm1, MMWORD [edx+1*SIZEOF_MMWORD] ; mm1=( - - - 7)
- pand mm2, MMWORD [edi+1*SIZEOF_MMWORD] ; mm2=( - - - 7)
-
- movq MMWORD [wk(2)], mm1
- movq MMWORD [wk(3)], mm2
-
- jmp short .upsample
- alignx 16,7
-
-.columnloop:
- ; -- process the next column block
-
- movq mm0, MMWORD [ebx+1*SIZEOF_MMWORD] ; mm0=row[ 0][1]
- movq mm1, MMWORD [ecx+1*SIZEOF_MMWORD] ; mm1=row[-1][1]
- movq mm2, MMWORD [esi+1*SIZEOF_MMWORD] ; mm2=row[+1][1]
-
- pushpic ebx
- movpic ebx, POINTER [gotptr] ; load GOT address
-
- pxor mm3,mm3 ; mm3=(all 0's)
- movq mm4,mm0
- punpcklbw mm0,mm3 ; mm0=row[ 0][1]( 0 1 2 3)
- punpckhbw mm4,mm3 ; mm4=row[ 0][1]( 4 5 6 7)
- movq mm5,mm1
- punpcklbw mm1,mm3 ; mm1=row[-1][1]( 0 1 2 3)
- punpckhbw mm5,mm3 ; mm5=row[-1][1]( 4 5 6 7)
- movq mm6,mm2
- punpcklbw mm2,mm3 ; mm2=row[+1][1]( 0 1 2 3)
- punpckhbw mm6,mm3 ; mm6=row[+1][1]( 4 5 6 7)
-
- pmullw mm0,[GOTOFF(ebx,PW_THREE)]
- pmullw mm4,[GOTOFF(ebx,PW_THREE)]
-
- paddw mm1,mm0 ; mm1=Int0L=( 0 1 2 3)
- paddw mm5,mm4 ; mm5=Int0H=( 4 5 6 7)
- paddw mm2,mm0 ; mm2=Int1L=( 0 1 2 3)
- paddw mm6,mm4 ; mm6=Int1H=( 4 5 6 7)
-
- movq MMWORD [edx+2*SIZEOF_MMWORD], mm1 ; temporarily save
- movq MMWORD [edx+3*SIZEOF_MMWORD], mm5 ; the intermediate data
- movq MMWORD [edi+2*SIZEOF_MMWORD], mm2
- movq MMWORD [edi+3*SIZEOF_MMWORD], mm6
-
- psllq mm1,(SIZEOF_MMWORD-2)*BYTE_BIT ; mm1=( - - - 0)
- psllq mm2,(SIZEOF_MMWORD-2)*BYTE_BIT ; mm2=( - - - 0)
-
- movq MMWORD [wk(2)], mm1
- movq MMWORD [wk(3)], mm2
-
-.upsample:
- ; -- process the upper row
-
- movq mm7, MMWORD [edx+0*SIZEOF_MMWORD] ; mm7=Int0L=( 0 1 2 3)
- movq mm3, MMWORD [edx+1*SIZEOF_MMWORD] ; mm3=Int0H=( 4 5 6 7)
-
- movq mm0,mm7
- movq mm4,mm3
- psrlq mm0,2*BYTE_BIT ; mm0=( 1 2 3 -)
- psllq mm4,(SIZEOF_MMWORD-2)*BYTE_BIT ; mm4=( - - - 4)
- movq mm5,mm7
- movq mm6,mm3
- psrlq mm5,(SIZEOF_MMWORD-2)*BYTE_BIT ; mm5=( 3 - - -)
- psllq mm6,2*BYTE_BIT ; mm6=( - 4 5 6)
-
- por mm0,mm4 ; mm0=( 1 2 3 4)
- por mm5,mm6 ; mm5=( 3 4 5 6)
-
- movq mm1,mm7
- movq mm2,mm3
- psllq mm1,2*BYTE_BIT ; mm1=( - 0 1 2)
- psrlq mm2,2*BYTE_BIT ; mm2=( 5 6 7 -)
- movq mm4,mm3
- psrlq mm4,(SIZEOF_MMWORD-2)*BYTE_BIT ; mm4=( 7 - - -)
-
- por mm1, MMWORD [wk(0)] ; mm1=(-1 0 1 2)
- por mm2, MMWORD [wk(2)] ; mm2=( 5 6 7 8)
-
- movq MMWORD [wk(0)], mm4
-
- pmullw mm7,[GOTOFF(ebx,PW_THREE)]
- pmullw mm3,[GOTOFF(ebx,PW_THREE)]
- paddw mm1,[GOTOFF(ebx,PW_EIGHT)]
- paddw mm5,[GOTOFF(ebx,PW_EIGHT)]
- paddw mm0,[GOTOFF(ebx,PW_SEVEN)]
- paddw mm2,[GOTOFF(ebx,PW_SEVEN)]
-
- paddw mm1,mm7
- paddw mm5,mm3
- psrlw mm1,4 ; mm1=Out0LE=( 0 2 4 6)
- psrlw mm5,4 ; mm5=Out0HE=( 8 10 12 14)
- paddw mm0,mm7
- paddw mm2,mm3
- psrlw mm0,4 ; mm0=Out0LO=( 1 3 5 7)
- psrlw mm2,4 ; mm2=Out0HO=( 9 11 13 15)
-
- psllw mm0,BYTE_BIT
- psllw mm2,BYTE_BIT
- por mm1,mm0 ; mm1=Out0L=( 0 1 2 3 4 5 6 7)
- por mm5,mm2 ; mm5=Out0H=( 8 9 10 11 12 13 14 15)
-
- movq MMWORD [edx+0*SIZEOF_MMWORD], mm1
- movq MMWORD [edx+1*SIZEOF_MMWORD], mm5
-
- ; -- process the lower row
-
- movq mm6, MMWORD [edi+0*SIZEOF_MMWORD] ; mm6=Int1L=( 0 1 2 3)
- movq mm4, MMWORD [edi+1*SIZEOF_MMWORD] ; mm4=Int1H=( 4 5 6 7)
-
- movq mm7,mm6
- movq mm3,mm4
- psrlq mm7,2*BYTE_BIT ; mm7=( 1 2 3 -)
- psllq mm3,(SIZEOF_MMWORD-2)*BYTE_BIT ; mm3=( - - - 4)
- movq mm0,mm6
- movq mm2,mm4
- psrlq mm0,(SIZEOF_MMWORD-2)*BYTE_BIT ; mm0=( 3 - - -)
- psllq mm2,2*BYTE_BIT ; mm2=( - 4 5 6)
-
- por mm7,mm3 ; mm7=( 1 2 3 4)
- por mm0,mm2 ; mm0=( 3 4 5 6)
-
- movq mm1,mm6
- movq mm5,mm4
- psllq mm1,2*BYTE_BIT ; mm1=( - 0 1 2)
- psrlq mm5,2*BYTE_BIT ; mm5=( 5 6 7 -)
- movq mm3,mm4
- psrlq mm3,(SIZEOF_MMWORD-2)*BYTE_BIT ; mm3=( 7 - - -)
-
- por mm1, MMWORD [wk(1)] ; mm1=(-1 0 1 2)
- por mm5, MMWORD [wk(3)] ; mm5=( 5 6 7 8)
-
- movq MMWORD [wk(1)], mm3
-
- pmullw mm6,[GOTOFF(ebx,PW_THREE)]
- pmullw mm4,[GOTOFF(ebx,PW_THREE)]
- paddw mm1,[GOTOFF(ebx,PW_EIGHT)]
- paddw mm0,[GOTOFF(ebx,PW_EIGHT)]
- paddw mm7,[GOTOFF(ebx,PW_SEVEN)]
- paddw mm5,[GOTOFF(ebx,PW_SEVEN)]
-
- paddw mm1,mm6
- paddw mm0,mm4
- psrlw mm1,4 ; mm1=Out1LE=( 0 2 4 6)
- psrlw mm0,4 ; mm0=Out1HE=( 8 10 12 14)
- paddw mm7,mm6
- paddw mm5,mm4
- psrlw mm7,4 ; mm7=Out1LO=( 1 3 5 7)
- psrlw mm5,4 ; mm5=Out1HO=( 9 11 13 15)
-
- psllw mm7,BYTE_BIT
- psllw mm5,BYTE_BIT
- por mm1,mm7 ; mm1=Out1L=( 0 1 2 3 4 5 6 7)
- por mm0,mm5 ; mm0=Out1H=( 8 9 10 11 12 13 14 15)
-
- movq MMWORD [edi+0*SIZEOF_MMWORD], mm1
- movq MMWORD [edi+1*SIZEOF_MMWORD], mm0
-
- poppic ebx
-
- sub eax, byte SIZEOF_MMWORD
- add ecx, byte 1*SIZEOF_MMWORD ; inptr1(above)
- add ebx, byte 1*SIZEOF_MMWORD ; inptr0
- add esi, byte 1*SIZEOF_MMWORD ; inptr1(below)
- add edx, byte 2*SIZEOF_MMWORD ; outptr0
- add edi, byte 2*SIZEOF_MMWORD ; outptr1
- cmp eax, byte SIZEOF_MMWORD
- ja near .columnloop
- test eax,eax
- jnz near .columnloop_last
-
- pop esi
- pop edi
- pop ecx
- pop eax
-
- add esi, byte 1*SIZEOF_JSAMPROW ; input_data
- add edi, byte 2*SIZEOF_JSAMPROW ; output_data
- sub ecx, byte 2 ; rowctr
- 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
-
-; --------------------------------------------------------------------------
-;
-; Fast processing for the common case of 2:1 horizontal and 1:1 vertical.
-; It's still a box filter.
-;
-; GLOBAL(void)
-; jsimd_h2v1_upsample_mmx (int max_v_samp_factor,
-; JDIMENSION output_width,
-; JSAMPARRAY input_data,
-; JSAMPARRAY * output_data_ptr);
-;
-
-%define max_v_samp(b) (b)+8 ; int max_v_samp_factor
-%define output_width(b) (b)+12 ; JDIMENSION output_width
-%define input_data(b) (b)+16 ; JSAMPARRAY input_data
-%define output_data_ptr(b) (b)+20 ; JSAMPARRAY * output_data_ptr
-
- align 16
- global EXTN(jsimd_h2v1_upsample_mmx) PRIVATE
-
-EXTN(jsimd_h2v1_upsample_mmx):
- push ebp
- mov ebp,esp
-; push ebx ; unused
-; push ecx ; need not be preserved
-; push edx ; need not be preserved
- push esi
- push edi
-
- mov edx, JDIMENSION [output_width(ebp)]
- add edx, byte (2*SIZEOF_MMWORD)-1
- and edx, byte -(2*SIZEOF_MMWORD)
- jz short .return
-
- mov ecx, INT [max_v_samp(ebp)] ; rowctr
- test ecx,ecx
- jz short .return
-
- mov esi, JSAMPARRAY [input_data(ebp)] ; input_data
- mov edi, POINTER [output_data_ptr(ebp)]
- mov edi, JSAMPARRAY [edi] ; output_data
- alignx 16,7
-.rowloop:
- push edi
- push esi
-
- mov esi, JSAMPROW [esi] ; inptr
- mov edi, JSAMPROW [edi] ; outptr
- mov eax,edx ; colctr
- alignx 16,7
-.columnloop:
-
- movq mm0, MMWORD [esi+0*SIZEOF_MMWORD]
-
- movq mm1,mm0
- punpcklbw mm0,mm0
- punpckhbw mm1,mm1
-
- movq MMWORD [edi+0*SIZEOF_MMWORD], mm0
- movq MMWORD [edi+1*SIZEOF_MMWORD], mm1
-
- sub eax, byte 2*SIZEOF_MMWORD
- jz short .nextrow
-
- movq mm2, MMWORD [esi+1*SIZEOF_MMWORD]
-
- movq mm3,mm2
- punpcklbw mm2,mm2
- punpckhbw mm3,mm3
-
- movq MMWORD [edi+2*SIZEOF_MMWORD], mm2
- movq MMWORD [edi+3*SIZEOF_MMWORD], mm3
-
- sub eax, byte 2*SIZEOF_MMWORD
- jz short .nextrow
-
- add esi, byte 2*SIZEOF_MMWORD ; inptr
- add edi, byte 4*SIZEOF_MMWORD ; outptr
- jmp short .columnloop
- alignx 16,7
-
-.nextrow:
- pop esi
- pop edi
-
- add esi, byte SIZEOF_JSAMPROW ; input_data
- add edi, byte SIZEOF_JSAMPROW ; output_data
- dec ecx ; rowctr
- jg short .rowloop
-
- emms ; empty MMX state
-
-.return:
- pop edi
- pop esi
-; pop edx ; need not be preserved
-; pop ecx ; need not be preserved
-; pop ebx ; unused
- pop ebp
- ret
-
-; --------------------------------------------------------------------------
-;
-; Fast processing for the common case of 2:1 horizontal and 2:1 vertical.
-; It's still a box filter.
-;
-; GLOBAL(void)
-; jsimd_h2v2_upsample_mmx (int max_v_samp_factor,
-; JDIMENSION output_width,
-; JSAMPARRAY input_data,
-; JSAMPARRAY * output_data_ptr);
-;
-
-%define max_v_samp(b) (b)+8 ; int max_v_samp_factor
-%define output_width(b) (b)+12 ; JDIMENSION output_width
-%define input_data(b) (b)+16 ; JSAMPARRAY input_data
-%define output_data_ptr(b) (b)+20 ; JSAMPARRAY * output_data_ptr
-
- align 16
- global EXTN(jsimd_h2v2_upsample_mmx) PRIVATE
-
-EXTN(jsimd_h2v2_upsample_mmx):
- push ebp
- mov ebp,esp
- push ebx
-; push ecx ; need not be preserved
-; push edx ; need not be preserved
- push esi
- push edi
-
- mov edx, JDIMENSION [output_width(ebp)]
- add edx, byte (2*SIZEOF_MMWORD)-1
- and edx, byte -(2*SIZEOF_MMWORD)
- jz near .return
-
- mov ecx, INT [max_v_samp(ebp)] ; rowctr
- test ecx,ecx
- jz short .return
-
- mov esi, JSAMPARRAY [input_data(ebp)] ; input_data
- mov edi, POINTER [output_data_ptr(ebp)]
- mov edi, JSAMPARRAY [edi] ; output_data
- alignx 16,7
-.rowloop:
- push edi
- push esi
-
- mov esi, JSAMPROW [esi] ; inptr
- mov ebx, JSAMPROW [edi+0*SIZEOF_JSAMPROW] ; outptr0
- mov edi, JSAMPROW [edi+1*SIZEOF_JSAMPROW] ; outptr1
- mov eax,edx ; colctr
- alignx 16,7
-.columnloop:
-
- movq mm0, MMWORD [esi+0*SIZEOF_MMWORD]
-
- movq mm1,mm0
- punpcklbw mm0,mm0
- punpckhbw mm1,mm1
-
- movq MMWORD [ebx+0*SIZEOF_MMWORD], mm0
- movq MMWORD [ebx+1*SIZEOF_MMWORD], mm1
- movq MMWORD [edi+0*SIZEOF_MMWORD], mm0
- movq MMWORD [edi+1*SIZEOF_MMWORD], mm1
-
- sub eax, byte 2*SIZEOF_MMWORD
- jz short .nextrow
-
- movq mm2, MMWORD [esi+1*SIZEOF_MMWORD]
-
- movq mm3,mm2
- punpcklbw mm2,mm2
- punpckhbw mm3,mm3
-
- movq MMWORD [ebx+2*SIZEOF_MMWORD], mm2
- movq MMWORD [ebx+3*SIZEOF_MMWORD], mm3
- movq MMWORD [edi+2*SIZEOF_MMWORD], mm2
- movq MMWORD [edi+3*SIZEOF_MMWORD], mm3
-
- sub eax, byte 2*SIZEOF_MMWORD
- jz short .nextrow
-
- add esi, byte 2*SIZEOF_MMWORD ; inptr
- add ebx, byte 4*SIZEOF_MMWORD ; outptr0
- add edi, byte 4*SIZEOF_MMWORD ; outptr1
- jmp short .columnloop
- alignx 16,7
-
-.nextrow:
- pop esi
- pop edi
-
- add esi, byte 1*SIZEOF_JSAMPROW ; input_data
- add edi, byte 2*SIZEOF_JSAMPROW ; output_data
- sub ecx, byte 2 ; rowctr
- jg short .rowloop
-
- emms ; empty MMX state
-
-.return:
- pop edi
- pop esi
-; pop edx ; need not be preserved
-; pop ecx ; need not be preserved
- pop ebx
- 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
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