| Index: simd/jquantf-sse2-64.asm
|
| diff --git a/simd/jquantf-sse2-64.asm b/simd/jquantf-sse2-64.asm
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..8af256c412ae93ed8cb104eace0f0fdf674d8828
|
| --- /dev/null
|
| +++ b/simd/jquantf-sse2-64.asm
|
| @@ -0,0 +1,158 @@
|
| +;
|
| +; jquantf.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 eax, r11d
|
| + 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
|
|
|