|
shun-iwasawa |
82a8f5 |
;
|
|
shun-iwasawa |
82a8f5 |
; jquanti.asm - sample data conversion and quantization (AVX2)
|
|
shun-iwasawa |
82a8f5 |
;
|
|
shun-iwasawa |
82a8f5 |
; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB</ossman@cendio.se>
|
|
shun-iwasawa |
82a8f5 |
; Copyright (C) 2016, 2018, D. R. Commander.
|
|
shun-iwasawa |
82a8f5 |
; Copyright (C) 2016, Matthieu Darbois.
|
|
shun-iwasawa |
82a8f5 |
;
|
|
shun-iwasawa |
82a8f5 |
; Based on the x86 SIMD extension for IJG JPEG library
|
|
shun-iwasawa |
82a8f5 |
; Copyright (C) 1999-2006, MIYASAKA Masaru.
|
|
shun-iwasawa |
82a8f5 |
; For conditions of distribution and use, see copyright notice in jsimdext.inc
|
|
shun-iwasawa |
82a8f5 |
;
|
|
shun-iwasawa |
82a8f5 |
; This file should be assembled with NASM (Netwide Assembler),
|
|
shun-iwasawa |
82a8f5 |
; can *not* be assembled with Microsoft's MASM or any compatible
|
|
shun-iwasawa |
82a8f5 |
; assembler (including Borland's Turbo Assembler).
|
|
shun-iwasawa |
82a8f5 |
; NASM is available from http://nasm.sourceforge.net/ or
|
|
shun-iwasawa |
82a8f5 |
; http://sourceforge.net/project/showfiles.php?group_id=6208
|
|
shun-iwasawa |
82a8f5 |
|
|
shun-iwasawa |
82a8f5 |
%include "jsimdext.inc"
|
|
shun-iwasawa |
82a8f5 |
%include "jdct.inc"
|
|
shun-iwasawa |
82a8f5 |
|
|
shun-iwasawa |
82a8f5 |
; --------------------------------------------------------------------------
|
|
shun-iwasawa |
82a8f5 |
SECTION SEG_TEXT
|
|
shun-iwasawa |
82a8f5 |
BITS 32
|
|
shun-iwasawa |
82a8f5 |
;
|
|
shun-iwasawa |
82a8f5 |
; Load data into workspace, applying unsigned->signed conversion
|
|
shun-iwasawa |
82a8f5 |
;
|
|
shun-iwasawa |
82a8f5 |
; GLOBAL(void)
|
|
shun-iwasawa |
82a8f5 |
; jsimd_convsamp_avx2(JSAMPARRAY sample_data, JDIMENSION start_col,
|
|
shun-iwasawa |
82a8f5 |
; DCTELEM *workspace);
|
|
shun-iwasawa |
82a8f5 |
;
|
|
shun-iwasawa |
82a8f5 |
|
|
shun-iwasawa |
82a8f5 |
%define sample_data ebp + 8 ; JSAMPARRAY sample_data
|
|
shun-iwasawa |
82a8f5 |
%define start_col ebp + 12 ; JDIMENSION start_col
|
|
shun-iwasawa |
82a8f5 |
%define workspace ebp + 16 ; DCTELEM *workspace
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|
shun-iwasawa |
82a8f5 |
|
|
shun-iwasawa |
82a8f5 |
align 32
|
|
shun-iwasawa |
82a8f5 |
GLOBAL_FUNCTION(jsimd_convsamp_avx2)
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|
shun-iwasawa |
82a8f5 |
|
|
shun-iwasawa |
82a8f5 |
EXTN(jsimd_convsamp_avx2):
|
|
shun-iwasawa |
82a8f5 |
push ebp
|
|
shun-iwasawa |
82a8f5 |
mov ebp, esp
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|
shun-iwasawa |
82a8f5 |
push ebx
|
|
shun-iwasawa |
82a8f5 |
; push ecx ; need not be preserved
|
|
shun-iwasawa |
82a8f5 |
; push edx ; need not be preserved
|
|
shun-iwasawa |
82a8f5 |
push esi
|
|
shun-iwasawa |
82a8f5 |
push edi
|
|
shun-iwasawa |
82a8f5 |
|
|
shun-iwasawa |
82a8f5 |
mov esi, JSAMPARRAY [sample_data] ; (JSAMPROW *)
|
|
shun-iwasawa |
82a8f5 |
mov eax, JDIMENSION [start_col]
|
|
shun-iwasawa |
82a8f5 |
mov edi, POINTER [workspace] ; (DCTELEM *)
|
|
shun-iwasawa |
82a8f5 |
|
|
shun-iwasawa |
82a8f5 |
mov ebx, JSAMPROW [esi+0*SIZEOF_JSAMPROW] ; (JSAMPLE *)
|
|
shun-iwasawa |
82a8f5 |
mov edx, JSAMPROW [esi+1*SIZEOF_JSAMPROW] ; (JSAMPLE *)
|
|
shun-iwasawa |
82a8f5 |
movq xmm0, XMM_MMWORD [ebx+eax*SIZEOF_JSAMPLE]
|
|
shun-iwasawa |
82a8f5 |
movq xmm1, XMM_MMWORD [edx+eax*SIZEOF_JSAMPLE]
|
|
shun-iwasawa |
82a8f5 |
|
|
shun-iwasawa |
82a8f5 |
mov ebx, JSAMPROW [esi+2*SIZEOF_JSAMPROW] ; (JSAMPLE *)
|
|
shun-iwasawa |
82a8f5 |
mov edx, JSAMPROW [esi+3*SIZEOF_JSAMPROW] ; (JSAMPLE *)
|
|
shun-iwasawa |
82a8f5 |
movq xmm2, XMM_MMWORD [ebx+eax*SIZEOF_JSAMPLE]
|
|
shun-iwasawa |
82a8f5 |
movq xmm3, XMM_MMWORD [edx+eax*SIZEOF_JSAMPLE]
|
|
shun-iwasawa |
82a8f5 |
|
|
shun-iwasawa |
82a8f5 |
mov ebx, JSAMPROW [esi+4*SIZEOF_JSAMPROW] ; (JSAMPLE *)
|
|
shun-iwasawa |
82a8f5 |
mov edx, JSAMPROW [esi+5*SIZEOF_JSAMPROW] ; (JSAMPLE *)
|
|
shun-iwasawa |
82a8f5 |
movq xmm4, XMM_MMWORD [ebx+eax*SIZEOF_JSAMPLE]
|
|
shun-iwasawa |
82a8f5 |
movq xmm5, XMM_MMWORD [edx+eax*SIZEOF_JSAMPLE]
|
|
shun-iwasawa |
82a8f5 |
|
|
shun-iwasawa |
82a8f5 |
mov ebx, JSAMPROW [esi+6*SIZEOF_JSAMPROW] ; (JSAMPLE *)
|
|
shun-iwasawa |
82a8f5 |
mov edx, JSAMPROW [esi+7*SIZEOF_JSAMPROW] ; (JSAMPLE *)
|
|
shun-iwasawa |
82a8f5 |
movq xmm6, XMM_MMWORD [ebx+eax*SIZEOF_JSAMPLE]
|
|
shun-iwasawa |
82a8f5 |
movq xmm7, XMM_MMWORD [edx+eax*SIZEOF_JSAMPLE]
|
|
shun-iwasawa |
82a8f5 |
|
|
shun-iwasawa |
82a8f5 |
vinserti128 ymm0, ymm0, xmm1, 1
|
|
shun-iwasawa |
82a8f5 |
vinserti128 ymm2, ymm2, xmm3, 1
|
|
shun-iwasawa |
82a8f5 |
vinserti128 ymm4, ymm4, xmm5, 1
|
|
shun-iwasawa |
82a8f5 |
vinserti128 ymm6, ymm6, xmm7, 1
|
|
shun-iwasawa |
82a8f5 |
|
|
shun-iwasawa |
82a8f5 |
vpxor ymm1, ymm1, ymm1 ; ymm1=(all 0's)
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|
shun-iwasawa |
82a8f5 |
vpunpcklbw ymm0, ymm0, ymm1
|
|
shun-iwasawa |
82a8f5 |
vpunpcklbw ymm2, ymm2, ymm1
|
|
shun-iwasawa |
82a8f5 |
vpunpcklbw ymm4, ymm4, ymm1
|
|
shun-iwasawa |
82a8f5 |
vpunpcklbw ymm6, ymm6, ymm1
|
|
shun-iwasawa |
82a8f5 |
|
|
shun-iwasawa |
82a8f5 |
vpcmpeqw ymm7, ymm7, ymm7
|
|
shun-iwasawa |
82a8f5 |
vpsllw ymm7, ymm7, 7 ; ymm7={0xFF80 0xFF80 0xFF80 0xFF80 ..}
|
|
shun-iwasawa |
82a8f5 |
|
|
shun-iwasawa |
82a8f5 |
vpaddw ymm0, ymm0, ymm7
|
|
shun-iwasawa |
82a8f5 |
vpaddw ymm2, ymm2, ymm7
|
|
shun-iwasawa |
82a8f5 |
vpaddw ymm4, ymm4, ymm7
|
|
shun-iwasawa |
82a8f5 |
vpaddw ymm6, ymm6, ymm7
|
|
shun-iwasawa |
82a8f5 |
|
|
shun-iwasawa |
82a8f5 |
vmovdqu YMMWORD [YMMBLOCK(0,0,edi,SIZEOF_DCTELEM)], ymm0
|
|
shun-iwasawa |
82a8f5 |
vmovdqu YMMWORD [YMMBLOCK(2,0,edi,SIZEOF_DCTELEM)], ymm2
|
|
shun-iwasawa |
82a8f5 |
vmovdqu YMMWORD [YMMBLOCK(4,0,edi,SIZEOF_DCTELEM)], ymm4
|
|
shun-iwasawa |
82a8f5 |
vmovdqu YMMWORD [YMMBLOCK(6,0,edi,SIZEOF_DCTELEM)], ymm6
|
|
shun-iwasawa |
82a8f5 |
|
|
shun-iwasawa |
82a8f5 |
vzeroupper
|
|
shun-iwasawa |
82a8f5 |
pop edi
|
|
shun-iwasawa |
82a8f5 |
pop esi
|
|
shun-iwasawa |
82a8f5 |
; pop edx ; need not be preserved
|
|
shun-iwasawa |
82a8f5 |
; pop ecx ; need not be preserved
|
|
shun-iwasawa |
82a8f5 |
pop ebx
|
|
shun-iwasawa |
82a8f5 |
pop ebp
|
|
shun-iwasawa |
82a8f5 |
ret
|
|
shun-iwasawa |
82a8f5 |
|
|
shun-iwasawa |
82a8f5 |
; --------------------------------------------------------------------------
|
|
shun-iwasawa |
82a8f5 |
;
|
|
shun-iwasawa |
82a8f5 |
; Quantize/descale the coefficients, and store into coef_block
|
|
shun-iwasawa |
82a8f5 |
;
|
|
shun-iwasawa |
82a8f5 |
; This implementation is based on an algorithm described in
|
|
shun-iwasawa |
82a8f5 |
; "How to optimize for the Pentium family of microprocessors"
|
|
shun-iwasawa |
82a8f5 |
; (http://www.agner.org/assem/).
|
|
shun-iwasawa |
82a8f5 |
;
|
|
shun-iwasawa |
82a8f5 |
; GLOBAL(void)
|
|
shun-iwasawa |
82a8f5 |
; jsimd_quantize_avx2(JCOEFPTR coef_block, DCTELEM *divisors,
|
|
shun-iwasawa |
82a8f5 |
; DCTELEM *workspace);
|
|
shun-iwasawa |
82a8f5 |
;
|
|
shun-iwasawa |
82a8f5 |
|
|
shun-iwasawa |
82a8f5 |
%define RECIPROCAL(m, n, b) \
|
|
shun-iwasawa |
82a8f5 |
YMMBLOCK(DCTSIZE * 0 + (m), (n), (b), SIZEOF_DCTELEM)
|
|
shun-iwasawa |
82a8f5 |
%define CORRECTION(m, n, b) \
|
|
shun-iwasawa |
82a8f5 |
YMMBLOCK(DCTSIZE * 1 + (m), (n), (b), SIZEOF_DCTELEM)
|
|
shun-iwasawa |
82a8f5 |
%define SCALE(m, n, b) \
|
|
shun-iwasawa |
82a8f5 |
YMMBLOCK(DCTSIZE * 2 + (m), (n), (b), SIZEOF_DCTELEM)
|
|
shun-iwasawa |
82a8f5 |
|
|
shun-iwasawa |
82a8f5 |
%define coef_block ebp + 8 ; JCOEFPTR coef_block
|
|
shun-iwasawa |
82a8f5 |
%define divisors ebp + 12 ; DCTELEM *divisors
|
|
shun-iwasawa |
82a8f5 |
%define workspace ebp + 16 ; DCTELEM *workspace
|
|
shun-iwasawa |
82a8f5 |
|
|
shun-iwasawa |
82a8f5 |
align 32
|
|
shun-iwasawa |
82a8f5 |
GLOBAL_FUNCTION(jsimd_quantize_avx2)
|
|
shun-iwasawa |
82a8f5 |
|
|
shun-iwasawa |
82a8f5 |
EXTN(jsimd_quantize_avx2):
|
|
shun-iwasawa |
82a8f5 |
push ebp
|
|
shun-iwasawa |
82a8f5 |
mov ebp, esp
|
|
shun-iwasawa |
82a8f5 |
; push ebx ; unused
|
|
shun-iwasawa |
82a8f5 |
; push ecx ; unused
|
|
shun-iwasawa |
82a8f5 |
; push edx ; need not be preserved
|
|
shun-iwasawa |
82a8f5 |
push esi
|
|
shun-iwasawa |
82a8f5 |
push edi
|
|
shun-iwasawa |
82a8f5 |
|
|
shun-iwasawa |
82a8f5 |
mov esi, POINTER [workspace]
|
|
shun-iwasawa |
82a8f5 |
mov edx, POINTER [divisors]
|
|
shun-iwasawa |
82a8f5 |
mov edi, JCOEFPTR [coef_block]
|
|
shun-iwasawa |
82a8f5 |
|
|
shun-iwasawa |
82a8f5 |
vmovdqu ymm4, [YMMBLOCK(0,0,esi,SIZEOF_DCTELEM)]
|
|
shun-iwasawa |
82a8f5 |
vmovdqu ymm5, [YMMBLOCK(2,0,esi,SIZEOF_DCTELEM)]
|
|
shun-iwasawa |
82a8f5 |
vmovdqu ymm6, [YMMBLOCK(4,0,esi,SIZEOF_DCTELEM)]
|
|
shun-iwasawa |
82a8f5 |
vmovdqu ymm7, [YMMBLOCK(6,0,esi,SIZEOF_DCTELEM)]
|
|
shun-iwasawa |
82a8f5 |
vpabsw ymm0, ymm4
|
|
shun-iwasawa |
82a8f5 |
vpabsw ymm1, ymm5
|
|
shun-iwasawa |
82a8f5 |
vpabsw ymm2, ymm6
|
|
shun-iwasawa |
82a8f5 |
vpabsw ymm3, ymm7
|
|
shun-iwasawa |
82a8f5 |
|
|
shun-iwasawa |
82a8f5 |
vpaddw ymm0, YMMWORD [CORRECTION(0,0,edx)] ; correction + roundfactor
|
|
shun-iwasawa |
82a8f5 |
vpaddw ymm1, YMMWORD [CORRECTION(2,0,edx)]
|
|
shun-iwasawa |
82a8f5 |
vpaddw ymm2, YMMWORD [CORRECTION(4,0,edx)]
|
|
shun-iwasawa |
82a8f5 |
vpaddw ymm3, YMMWORD [CORRECTION(6,0,edx)]
|
|
shun-iwasawa |
82a8f5 |
vpmulhuw ymm0, YMMWORD [RECIPROCAL(0,0,edx)] ; reciprocal
|
|
shun-iwasawa |
82a8f5 |
vpmulhuw ymm1, YMMWORD [RECIPROCAL(2,0,edx)]
|
|
shun-iwasawa |
82a8f5 |
vpmulhuw ymm2, YMMWORD [RECIPROCAL(4,0,edx)]
|
|
shun-iwasawa |
82a8f5 |
vpmulhuw ymm3, YMMWORD [RECIPROCAL(6,0,edx)]
|
|
shun-iwasawa |
82a8f5 |
vpmulhuw ymm0, YMMWORD [SCALE(0,0,edx)] ; scale
|
|
shun-iwasawa |
82a8f5 |
vpmulhuw ymm1, YMMWORD [SCALE(2,0,edx)]
|
|
shun-iwasawa |
82a8f5 |
vpmulhuw ymm2, YMMWORD [SCALE(4,0,edx)]
|
|
shun-iwasawa |
82a8f5 |
vpmulhuw ymm3, YMMWORD [SCALE(6,0,edx)]
|
|
shun-iwasawa |
82a8f5 |
|
|
shun-iwasawa |
82a8f5 |
vpsignw ymm0, ymm0, ymm4
|
|
shun-iwasawa |
82a8f5 |
vpsignw ymm1, ymm1, ymm5
|
|
shun-iwasawa |
82a8f5 |
vpsignw ymm2, ymm2, ymm6
|
|
shun-iwasawa |
82a8f5 |
vpsignw ymm3, ymm3, ymm7
|
|
shun-iwasawa |
82a8f5 |
|
|
shun-iwasawa |
82a8f5 |
vmovdqu [YMMBLOCK(0,0,edi,SIZEOF_DCTELEM)], ymm0
|
|
shun-iwasawa |
82a8f5 |
vmovdqu [YMMBLOCK(2,0,edi,SIZEOF_DCTELEM)], ymm1
|
|
shun-iwasawa |
82a8f5 |
vmovdqu [YMMBLOCK(4,0,edi,SIZEOF_DCTELEM)], ymm2
|
|
shun-iwasawa |
82a8f5 |
vmovdqu [YMMBLOCK(6,0,edi,SIZEOF_DCTELEM)], ymm3
|
|
shun-iwasawa |
82a8f5 |
|
|
shun-iwasawa |
82a8f5 |
vzeroupper
|
|
shun-iwasawa |
82a8f5 |
pop edi
|
|
shun-iwasawa |
82a8f5 |
pop esi
|
|
shun-iwasawa |
82a8f5 |
; pop edx ; need not be preserved
|
|
shun-iwasawa |
82a8f5 |
; pop ecx ; unused
|
|
shun-iwasawa |
82a8f5 |
; pop ebx ; unused
|
|
shun-iwasawa |
82a8f5 |
pop ebp
|
|
shun-iwasawa |
82a8f5 |
ret
|
|
shun-iwasawa |
82a8f5 |
|
|
shun-iwasawa |
82a8f5 |
; For some reason, the OS X linker does not honor the request to align the
|
|
shun-iwasawa |
82a8f5 |
; segment unless we do this.
|
|
shun-iwasawa |
82a8f5 |
align 32
|