Update to libjpeg_turbo 1.4.90

simd/jquant-sse.asm

Index: simd/jquant-sse.asm
diff --git a/simd/jquant-sse.asm b/simd/jquant-sse.asm
new file mode 100644
index 0000000000000000000000000000000000000000..796723ac3092c299323a9de1b7f4a40d2ebb93fb
--- /dev/null
+++ b/simd/jquant-sse.asm
@@ -0,0 +1,211 @@
+;
+; jquant.asm - sample data conversion and quantization (SSE & 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"
+%include "jdct.inc"
+
+; --------------------------------------------------------------------------
+        SECTION SEG_TEXT
+        BITS    32
+;
+; Load data into workspace, applying unsigned->signed conversion
+;
+; GLOBAL(void)
+; jsimd_convsamp_float_sse (JSAMPARRAY sample_data, JDIMENSION start_col,
+;                           FAST_FLOAT *workspace);
+;
+
+%define sample_data     ebp+8           ; JSAMPARRAY sample_data
+%define start_col       ebp+12          ; JDIMENSION start_col
+%define workspace       ebp+16          ; FAST_FLOAT *workspace
+
+        align   16
+        global  EXTN(jsimd_convsamp_float_sse)
+
+EXTN(jsimd_convsamp_float_sse):
+        push    ebp
+        mov     ebp,esp
+        push    ebx
+;       push    ecx             ; need not be preserved
+;       push    edx             ; need not be preserved
+        push    esi
+        push    edi
+
+        pcmpeqw  mm7,mm7
+        psllw    mm7,7
+        packsswb mm7,mm7                ; mm7 = PB_CENTERJSAMPLE (0x808080..)
+
+        mov     esi, JSAMPARRAY [sample_data]   ; (JSAMPROW *)
+        mov     eax, JDIMENSION [start_col]
+        mov     edi, POINTER [workspace]        ; (DCTELEM *)
+        mov     ecx, DCTSIZE/2
+        alignx  16,7
+.convloop:
+        mov     ebx, JSAMPROW [esi+0*SIZEOF_JSAMPROW]   ; (JSAMPLE *)
+        mov     edx, JSAMPROW [esi+1*SIZEOF_JSAMPROW]   ; (JSAMPLE *)
+
+        movq    mm0, MMWORD [ebx+eax*SIZEOF_JSAMPLE]
+        movq    mm1, MMWORD [edx+eax*SIZEOF_JSAMPLE]
+
+        psubb   mm0,mm7                         ; mm0=(01234567)
+        psubb   mm1,mm7                         ; mm1=(89ABCDEF)
+
+        punpcklbw mm2,mm0                       ; mm2=(*0*1*2*3)
+        punpckhbw mm0,mm0                       ; mm0=(*4*5*6*7)
+        punpcklbw mm3,mm1                       ; mm3=(*8*9*A*B)
+        punpckhbw mm1,mm1                       ; mm1=(*C*D*E*F)
+
+        punpcklwd mm4,mm2                       ; mm4=(***0***1)
+        punpckhwd mm2,mm2                       ; mm2=(***2***3)
+        punpcklwd mm5,mm0                       ; mm5=(***4***5)
+        punpckhwd mm0,mm0                       ; mm0=(***6***7)
+
+        psrad     mm4,(DWORD_BIT-BYTE_BIT)      ; mm4=(01)
+        psrad     mm2,(DWORD_BIT-BYTE_BIT)      ; mm2=(23)
+        cvtpi2ps  xmm0,mm4                      ; xmm0=(01**)
+        cvtpi2ps  xmm1,mm2                      ; xmm1=(23**)
+        psrad     mm5,(DWORD_BIT-BYTE_BIT)      ; mm5=(45)
+        psrad     mm0,(DWORD_BIT-BYTE_BIT)      ; mm0=(67)
+        cvtpi2ps  xmm2,mm5                      ; xmm2=(45**)
+        cvtpi2ps  xmm3,mm0                      ; xmm3=(67**)
+
+        punpcklwd mm6,mm3                       ; mm6=(***8***9)
+        punpckhwd mm3,mm3                       ; mm3=(***A***B)
+        punpcklwd mm4,mm1                       ; mm4=(***C***D)
+        punpckhwd mm1,mm1                       ; mm1=(***E***F)
+
+        psrad     mm6,(DWORD_BIT-BYTE_BIT)      ; mm6=(89)
+        psrad     mm3,(DWORD_BIT-BYTE_BIT)      ; mm3=(AB)
+        cvtpi2ps  xmm4,mm6                      ; xmm4=(89**)
+        cvtpi2ps  xmm5,mm3                      ; xmm5=(AB**)
+        psrad     mm4,(DWORD_BIT-BYTE_BIT)      ; mm4=(CD)
+        psrad     mm1,(DWORD_BIT-BYTE_BIT)      ; mm1=(EF)
+        cvtpi2ps  xmm6,mm4                      ; xmm6=(CD**)
+        cvtpi2ps  xmm7,mm1                      ; xmm7=(EF**)
+
+        movlhps   xmm0,xmm1                     ; xmm0=(0123)
+        movlhps   xmm2,xmm3                     ; xmm2=(4567)
+        movlhps   xmm4,xmm5                     ; xmm4=(89AB)
+        movlhps   xmm6,xmm7                     ; xmm6=(CDEF)
+
+        movaps  XMMWORD [XMMBLOCK(0,0,edi,SIZEOF_FAST_FLOAT)], xmm0
+        movaps  XMMWORD [XMMBLOCK(0,1,edi,SIZEOF_FAST_FLOAT)], xmm2
+        movaps  XMMWORD [XMMBLOCK(1,0,edi,SIZEOF_FAST_FLOAT)], xmm4
+        movaps  XMMWORD [XMMBLOCK(1,1,edi,SIZEOF_FAST_FLOAT)], xmm6
+
+        add     esi, byte 2*SIZEOF_JSAMPROW
+        add     edi, byte 2*DCTSIZE*SIZEOF_FAST_FLOAT
+        dec     ecx
+        jnz     near .convloop
+
+        emms            ; empty MMX state
+
+        pop     edi
+        pop     esi
+;       pop     edx             ; need not be preserved
+;       pop     ecx             ; need not be preserved
+        pop     ebx
+        pop     ebp
+        ret
+
+
+; --------------------------------------------------------------------------
+;
+; Quantize/descale the coefficients, and store into coef_block
+;
+; GLOBAL(void)
+; jsimd_quantize_float_sse (JCOEFPTR coef_block, FAST_FLOAT *divisors,
+;                           FAST_FLOAT *workspace);
+;
+
+%define coef_block      ebp+8           ; JCOEFPTR coef_block
+%define divisors        ebp+12          ; FAST_FLOAT *divisors
+%define workspace       ebp+16          ; FAST_FLOAT *workspace
+
+        align   16
+        global  EXTN(jsimd_quantize_float_sse)
+
+EXTN(jsimd_quantize_float_sse):
+        push    ebp
+        mov     ebp,esp
+;       push    ebx             ; unused
+;       push    ecx             ; unused
+;       push    edx             ; need not be preserved
+        push    esi
+        push    edi
+
+        mov     esi, POINTER [workspace]
+        mov     edx, POINTER [divisors]
+        mov     edi, JCOEFPTR [coef_block]
+        mov     eax, DCTSIZE2/16
+        alignx  16,7
+.quantloop:
+        movaps  xmm0, XMMWORD [XMMBLOCK(0,0,esi,SIZEOF_FAST_FLOAT)]
+        movaps  xmm1, XMMWORD [XMMBLOCK(0,1,esi,SIZEOF_FAST_FLOAT)]
+        mulps   xmm0, XMMWORD [XMMBLOCK(0,0,edx,SIZEOF_FAST_FLOAT)]
+        mulps   xmm1, XMMWORD [XMMBLOCK(0,1,edx,SIZEOF_FAST_FLOAT)]
+        movaps  xmm2, XMMWORD [XMMBLOCK(1,0,esi,SIZEOF_FAST_FLOAT)]
+        movaps  xmm3, XMMWORD [XMMBLOCK(1,1,esi,SIZEOF_FAST_FLOAT)]
+        mulps   xmm2, XMMWORD [XMMBLOCK(1,0,edx,SIZEOF_FAST_FLOAT)]
+        mulps   xmm3, XMMWORD [XMMBLOCK(1,1,edx,SIZEOF_FAST_FLOAT)]
+
+        movhlps  xmm4,xmm0
+        movhlps  xmm5,xmm1
+
+        cvtps2pi mm0,xmm0
+        cvtps2pi mm1,xmm1
+        cvtps2pi mm4,xmm4
+        cvtps2pi mm5,xmm5
+
+        movhlps  xmm6,xmm2
+        movhlps  xmm7,xmm3
+
+        cvtps2pi mm2,xmm2
+        cvtps2pi mm3,xmm3
+        cvtps2pi mm6,xmm6
+        cvtps2pi mm7,xmm7
+
+        packssdw mm0,mm4
+        packssdw mm1,mm5
+        packssdw mm2,mm6
+        packssdw mm3,mm7
+
+        movq    MMWORD [MMBLOCK(0,0,edi,SIZEOF_JCOEF)], mm0
+        movq    MMWORD [MMBLOCK(0,1,edi,SIZEOF_JCOEF)], mm1
+        movq    MMWORD [MMBLOCK(1,0,edi,SIZEOF_JCOEF)], mm2
+        movq    MMWORD [MMBLOCK(1,1,edi,SIZEOF_JCOEF)], mm3
+
+        add     esi, byte 16*SIZEOF_FAST_FLOAT
+        add     edx, byte 16*SIZEOF_FAST_FLOAT
+        add     edi, byte 16*SIZEOF_JCOEF
+        dec     eax
+        jnz     short .quantloop
+
+        emms            ; empty MMX state
+
+        pop     edi
+        pop     esi
+;       pop     edx             ; need not be preserved
+;       pop     ecx             ; unused
+;       pop     ebx             ; unused
+        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