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diff --git a/media/libjpeg/simd/i386/jdsample-mmx.asm b/media/libjpeg/simd/i386/jdsample-mmx.asm
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+;
+; jdsample.asm - upsampling (MMX)
+;
+; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
+; Copyright (C) 2016, D. R. Commander.
+;
+; Based on the 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
+
+%include "jsimdext.inc"
+
+; --------------------------------------------------------------------------
+ SECTION SEG_CONST
+
+ alignz 32
+ GLOBAL_DATA(jconst_fancy_upsample_mmx)
+
+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 32
+
+; --------------------------------------------------------------------------
+ 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 32
+ GLOBAL_FUNCTION(jsimd_h2v1_fancy_upsample_mmx)
+
+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 32
+ GLOBAL_FUNCTION(jsimd_h2v2_fancy_upsample_mmx)
+
+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 32
+ GLOBAL_FUNCTION(jsimd_h2v1_upsample_mmx)
+
+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 32
+ GLOBAL_FUNCTION(jsimd_h2v2_upsample_mmx)
+
+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 32
generated by cgit v1.2.3 (git 2.26.2) at 2024-11-09 16:35:36 +0000