From 0d439fbede03854eac8a978cccf21a3425a3c82d Mon Sep 17 00:00:00 2001 From: Diego Biurrun Date: Tue, 7 Jan 2014 12:23:13 +0100 Subject: dsputil: Split off HuffYUV decoding bits into their own context Also shorten HuffYUV context member names to avoid clutter. --- libavcodec/x86/huffyuvdsp.asm | 165 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 165 insertions(+) create mode 100644 libavcodec/x86/huffyuvdsp.asm (limited to 'libavcodec/x86/huffyuvdsp.asm') diff --git a/libavcodec/x86/huffyuvdsp.asm b/libavcodec/x86/huffyuvdsp.asm new file mode 100644 index 0000000000..436abc8b75 --- /dev/null +++ b/libavcodec/x86/huffyuvdsp.asm @@ -0,0 +1,165 @@ +;****************************************************************************** +;* SIMD-optimized HuffYUV functions +;* Copyright (c) 2008 Loren Merritt +;* +;* This file is part of Libav. +;* +;* Libav is free software; you can redistribute it and/or +;* modify it under the terms of the GNU Lesser General Public +;* License as published by the Free Software Foundation; either +;* version 2.1 of the License, or (at your option) any later version. +;* +;* Libav is distributed in the hope that it will be useful, +;* but WITHOUT ANY WARRANTY; without even the implied warranty of +;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +;* Lesser General Public License for more details. +;* +;* You should have received a copy of the GNU Lesser General Public +;* License along with Libav; if not, write to the Free Software +;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA +;****************************************************************************** + +%include "libavutil/x86/x86util.asm" + +SECTION_RODATA +pb_f: times 16 db 15 +pb_zzzzzzzz77777777: times 8 db -1 +pb_7: times 8 db 7 +pb_zzzz3333zzzzbbbb: db -1,-1,-1,-1,3,3,3,3,-1,-1,-1,-1,11,11,11,11 +pb_zz11zz55zz99zzdd: db -1,-1,1,1,-1,-1,5,5,-1,-1,9,9,-1,-1,13,13 + +SECTION_TEXT + +; void ff_add_hfyu_median_pred_mmxext(uint8_t *dst, const uint8_t *top, +; const uint8_t *diff, int w, +; int *left, int *left_top) +INIT_MMX mmxext +cglobal add_hfyu_median_pred, 6,6,0, dst, top, diff, w, left, left_top + movq mm0, [topq] + movq mm2, mm0 + movd mm4, [left_topq] + psllq mm2, 8 + movq mm1, mm0 + por mm4, mm2 + movd mm3, [leftq] + psubb mm0, mm4 ; t-tl + add dstq, wq + add topq, wq + add diffq, wq + neg wq + jmp .skip +.loop: + movq mm4, [topq+wq] + movq mm0, mm4 + psllq mm4, 8 + por mm4, mm1 + movq mm1, mm0 ; t + psubb mm0, mm4 ; t-tl +.skip: + movq mm2, [diffq+wq] +%assign i 0 +%rep 8 + movq mm4, mm0 + paddb mm4, mm3 ; t-tl+l + movq mm5, mm3 + pmaxub mm3, mm1 + pminub mm5, mm1 + pminub mm3, mm4 + pmaxub mm3, mm5 ; median + paddb mm3, mm2 ; +residual +%if i==0 + movq mm7, mm3 + psllq mm7, 56 +%else + movq mm6, mm3 + psrlq mm7, 8 + psllq mm6, 56 + por mm7, mm6 +%endif +%if i<7 + psrlq mm0, 8 + psrlq mm1, 8 + psrlq mm2, 8 +%endif +%assign i i+1 +%endrep + movq [dstq+wq], mm7 + add wq, 8 + jl .loop + movzx r2d, byte [dstq-1] + mov [leftq], r2d + movzx r2d, byte [topq-1] + mov [left_topq], r2d + RET + + +%macro ADD_HFYU_LEFT_LOOP 2 ; %1 = dst_is_aligned, %2 = src_is_aligned + add srcq, wq + add dstq, wq + neg wq +%%.loop: +%if %2 + mova m1, [srcq+wq] +%else + movu m1, [srcq+wq] +%endif + mova m2, m1 + psllw m1, 8 + paddb m1, m2 + mova m2, m1 + pshufb m1, m3 + paddb m1, m2 + pshufb m0, m5 + mova m2, m1 + pshufb m1, m4 + paddb m1, m2 +%if mmsize == 16 + mova m2, m1 + pshufb m1, m6 + paddb m1, m2 +%endif + paddb m0, m1 +%if %1 + mova [dstq+wq], m0 +%else + movq [dstq+wq], m0 + movhps [dstq+wq+8], m0 +%endif + add wq, mmsize + jl %%.loop + mov eax, mmsize-1 + sub eax, wd + movd m1, eax + pshufb m0, m1 + movd eax, m0 + RET +%endmacro + +; int ff_add_hfyu_left_pred(uint8_t *dst, const uint8_t *src, int w, int left) +INIT_MMX ssse3 +cglobal add_hfyu_left_pred, 3,3,7, dst, src, w, left +.skip_prologue: + mova m5, [pb_7] + mova m4, [pb_zzzz3333zzzzbbbb] + mova m3, [pb_zz11zz55zz99zzdd] + movd m0, leftm + psllq m0, 56 + ADD_HFYU_LEFT_LOOP 1, 1 + +INIT_XMM sse4 +cglobal add_hfyu_left_pred, 3,3,7, dst, src, w, left + mova m5, [pb_f] + mova m6, [pb_zzzzzzzz77777777] + mova m4, [pb_zzzz3333zzzzbbbb] + mova m3, [pb_zz11zz55zz99zzdd] + movd m0, leftm + pslldq m0, 15 + test srcq, 15 + jnz .src_unaligned + test dstq, 15 + jnz .dst_unaligned + ADD_HFYU_LEFT_LOOP 1, 1 +.dst_unaligned: + ADD_HFYU_LEFT_LOOP 0, 1 +.src_unaligned: + ADD_HFYU_LEFT_LOOP 0, 0 -- cgit v1.2.3