Adds libjpeg-turbo to deps...

third_party/libjpeg_turbo/simd/jcqnts2f-64.asm

+;
+; jcqnts2f-64.asm - sample data conversion and quantization (64-bit SSE & SSE2)
+;
+; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
+; Copyright 2009 D. R. Commander
+;
+; 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"
+%include "jdct.inc"
+
+; --------------------------------------------------------------------------
+        SECTION SEG_TEXT
+        BITS    64
+;
+; Load data into workspace, applying unsigned->signed conversion
+;
+; GLOBAL(void)
+; jsimd_convsamp_float_sse2 (JSAMPARRAY sample_data, JDIMENSION start_col,
+;                            FAST_FLOAT * workspace);
+;
+
+; r10 = JSAMPARRAY sample_data
+; r11 = JDIMENSION start_col
+; r12 = FAST_FLOAT * workspace
+
+        align   16
+        global  EXTN(jsimd_convsamp_float_sse2)
+
+EXTN(jsimd_convsamp_float_sse2):
+        push    rbp
+        mov     rax,rsp
+        mov     rbp,rsp
+        collect_args
+        push    rbx
+
+        pcmpeqw  xmm7,xmm7
+        psllw    xmm7,7
+        packsswb xmm7,xmm7              ; xmm7 = PB_CENTERJSAMPLE (0x808080..)
+
+        mov rsi, r10
+        mov     rax, r11
+        mov rdi, r12
+        mov     rcx, DCTSIZE/2
+.convloop:
+        mov     rbx, JSAMPROW [rsi+0*SIZEOF_JSAMPROW]   ; (JSAMPLE *)
+        mov rdx, JSAMPROW [rsi+1*SIZEOF_JSAMPROW]       ; (JSAMPLE *)
+
+        movq    xmm0, XMM_MMWORD [rbx+rax*SIZEOF_JSAMPLE]
+        movq    xmm1, XMM_MMWORD [rdx+rax*SIZEOF_JSAMPLE]
+
+        psubb   xmm0,xmm7                       ; xmm0=(01234567)
+        psubb   xmm1,xmm7                       ; xmm1=(89ABCDEF)
+
+        punpcklbw xmm0,xmm0                     ; xmm0=(*0*1*2*3*4*5*6*7)
+        punpcklbw xmm1,xmm1                     ; xmm1=(*8*9*A*B*C*D*E*F)
+
+        punpcklwd xmm2,xmm0                     ; xmm2=(***0***1***2***3)
+        punpckhwd xmm0,xmm0                     ; xmm0=(***4***5***6***7)
+        punpcklwd xmm3,xmm1                     ; xmm3=(***8***9***A***B)
+        punpckhwd xmm1,xmm1                     ; xmm1=(***C***D***E***F)
+
+        psrad     xmm2,(DWORD_BIT-BYTE_BIT)     ; xmm2=(0123)
+        psrad     xmm0,(DWORD_BIT-BYTE_BIT)     ; xmm0=(4567)
+        cvtdq2ps  xmm2,xmm2                     ; xmm2=(0123)
+        cvtdq2ps  xmm0,xmm0                     ; xmm0=(4567)
+        psrad     xmm3,(DWORD_BIT-BYTE_BIT)     ; xmm3=(89AB)
+        psrad     xmm1,(DWORD_BIT-BYTE_BIT)     ; xmm1=(CDEF)
+        cvtdq2ps  xmm3,xmm3                     ; xmm3=(89AB)
+        cvtdq2ps  xmm1,xmm1                     ; xmm1=(CDEF)
+
+        movaps  XMMWORD [XMMBLOCK(0,0,rdi,SIZEOF_FAST_FLOAT)], xmm2
+        movaps  XMMWORD [XMMBLOCK(0,1,rdi,SIZEOF_FAST_FLOAT)], xmm0
+        movaps  XMMWORD [XMMBLOCK(1,0,rdi,SIZEOF_FAST_FLOAT)], xmm3
+        movaps  XMMWORD [XMMBLOCK(1,1,rdi,SIZEOF_FAST_FLOAT)], xmm1
+
+        add     rsi, byte 2*SIZEOF_JSAMPROW
+        add     rdi, byte 2*DCTSIZE*SIZEOF_FAST_FLOAT
+        dec     rcx
+        jnz     short .convloop
+
+        pop     rbx
+        uncollect_args
+        pop     rbp
+        ret
+
+
+; --------------------------------------------------------------------------
+;
+; Quantize/descale the coefficients, and store into coef_block
+;
+; GLOBAL(void)
+; jsimd_quantize_float_sse2 (JCOEFPTR coef_block, FAST_FLOAT * divisors,
+;                         FAST_FLOAT * workspace);
+;
+
+; r10 = JCOEFPTR coef_block
+; r11 = FAST_FLOAT * divisors
+; r12 = FAST_FLOAT * workspace
+
+        align   16
+        global  EXTN(jsimd_quantize_float_sse2)
+
+EXTN(jsimd_quantize_float_sse2):
+        push    rbp
+        mov     rax,rsp
+        mov     rbp,rsp
+        collect_args
+
+        mov rsi, r12
+        mov rdx, r11
+        mov rdi, r10
+        mov     rax, DCTSIZE2/16
+.quantloop:
+        movaps  xmm0, XMMWORD [XMMBLOCK(0,0,rsi,SIZEOF_FAST_FLOAT)]
+        movaps  xmm1, XMMWORD [XMMBLOCK(0,1,rsi,SIZEOF_FAST_FLOAT)]
+        mulps   xmm0, XMMWORD [XMMBLOCK(0,0,rdx,SIZEOF_FAST_FLOAT)]
+        mulps   xmm1, XMMWORD [XMMBLOCK(0,1,rdx,SIZEOF_FAST_FLOAT)]
+        movaps  xmm2, XMMWORD [XMMBLOCK(1,0,rsi,SIZEOF_FAST_FLOAT)]
+        movaps  xmm3, XMMWORD [XMMBLOCK(1,1,rsi,SIZEOF_FAST_FLOAT)]
+        mulps   xmm2, XMMWORD [XMMBLOCK(1,0,rdx,SIZEOF_FAST_FLOAT)]
+        mulps   xmm3, XMMWORD [XMMBLOCK(1,1,rdx,SIZEOF_FAST_FLOAT)]
+
+        cvtps2dq xmm0,xmm0
+        cvtps2dq xmm1,xmm1
+        cvtps2dq xmm2,xmm2
+        cvtps2dq xmm3,xmm3
+
+        packssdw xmm0,xmm1
+        packssdw xmm2,xmm3
+
+        movdqa  XMMWORD [XMMBLOCK(0,0,rdi,SIZEOF_JCOEF)], xmm0
+        movdqa  XMMWORD [XMMBLOCK(1,0,rdi,SIZEOF_JCOEF)], xmm2
+
+        add     rsi, byte 16*SIZEOF_FAST_FLOAT
+        add     rdx, byte 16*SIZEOF_FAST_FLOAT
+        add     rdi, byte 16*SIZEOF_JCOEF
+        dec     rax
+        jnz     short .quantloop
+
+        uncollect_args
+        pop     rbp
+        ret
+
+; For some reason, the OS X linker does not honor the request to align the
+; segment unless we do this.
+        align   16