mirror of https://git.ffmpeg.org/ffmpeg.git
176 lines
7.2 KiB
C
176 lines
7.2 KiB
C
/*
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* SIMD-optimized halfpel functions are compiled twice for rnd/no_rnd
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* Copyright (c) 2000, 2001 Fabrice Bellard
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* Copyright (c) 2003-2004 Michael Niedermayer <michaelni@gmx.at>
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*
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* MMX optimization by Nick Kurshev <nickols_k@mail.ru>
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* mostly rewritten by Michael Niedermayer <michaelni@gmx.at>
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* and improved by Zdenek Kabelac <kabi@users.sf.net>
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*
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* This file is part of Libav.
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*
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* Libav is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* Libav is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with Libav; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <stddef.h>
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#include <stdint.h>
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#include "inline_asm.h"
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// put_pixels
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STATIC void DEF(put, pixels8_xy2)(uint8_t *block, const uint8_t *pixels,
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ptrdiff_t line_size, int h)
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{
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MOVQ_ZERO(mm7);
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SET_RND(mm6); // =2 for rnd and =1 for no_rnd version
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__asm__ volatile(
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"movq (%1), %%mm0 \n\t"
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"movq 1(%1), %%mm4 \n\t"
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"movq %%mm0, %%mm1 \n\t"
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"movq %%mm4, %%mm5 \n\t"
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"punpcklbw %%mm7, %%mm0 \n\t"
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"punpcklbw %%mm7, %%mm4 \n\t"
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"punpckhbw %%mm7, %%mm1 \n\t"
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"punpckhbw %%mm7, %%mm5 \n\t"
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"paddusw %%mm0, %%mm4 \n\t"
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"paddusw %%mm1, %%mm5 \n\t"
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"xor %%"REG_a", %%"REG_a" \n\t"
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"add %3, %1 \n\t"
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".p2align 3 \n\t"
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"1: \n\t"
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"movq (%1, %%"REG_a"), %%mm0 \n\t"
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"movq 1(%1, %%"REG_a"), %%mm2 \n\t"
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"movq %%mm0, %%mm1 \n\t"
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"movq %%mm2, %%mm3 \n\t"
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"punpcklbw %%mm7, %%mm0 \n\t"
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"punpcklbw %%mm7, %%mm2 \n\t"
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"punpckhbw %%mm7, %%mm1 \n\t"
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"punpckhbw %%mm7, %%mm3 \n\t"
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"paddusw %%mm2, %%mm0 \n\t"
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"paddusw %%mm3, %%mm1 \n\t"
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"paddusw %%mm6, %%mm4 \n\t"
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"paddusw %%mm6, %%mm5 \n\t"
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"paddusw %%mm0, %%mm4 \n\t"
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"paddusw %%mm1, %%mm5 \n\t"
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"psrlw $2, %%mm4 \n\t"
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"psrlw $2, %%mm5 \n\t"
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"packuswb %%mm5, %%mm4 \n\t"
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"movq %%mm4, (%2, %%"REG_a") \n\t"
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"add %3, %%"REG_a" \n\t"
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"movq (%1, %%"REG_a"), %%mm2 \n\t" // 0 <-> 2 1 <-> 3
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"movq 1(%1, %%"REG_a"), %%mm4 \n\t"
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"movq %%mm2, %%mm3 \n\t"
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"movq %%mm4, %%mm5 \n\t"
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"punpcklbw %%mm7, %%mm2 \n\t"
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"punpcklbw %%mm7, %%mm4 \n\t"
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"punpckhbw %%mm7, %%mm3 \n\t"
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"punpckhbw %%mm7, %%mm5 \n\t"
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"paddusw %%mm2, %%mm4 \n\t"
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"paddusw %%mm3, %%mm5 \n\t"
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"paddusw %%mm6, %%mm0 \n\t"
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"paddusw %%mm6, %%mm1 \n\t"
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"paddusw %%mm4, %%mm0 \n\t"
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"paddusw %%mm5, %%mm1 \n\t"
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"psrlw $2, %%mm0 \n\t"
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"psrlw $2, %%mm1 \n\t"
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"packuswb %%mm1, %%mm0 \n\t"
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"movq %%mm0, (%2, %%"REG_a") \n\t"
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"add %3, %%"REG_a" \n\t"
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"subl $2, %0 \n\t"
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"jnz 1b \n\t"
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:"+g"(h), "+S"(pixels)
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:"D"(block), "r"((x86_reg)line_size)
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:REG_a, "memory");
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}
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// avg_pixels
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// this routine is 'slightly' suboptimal but mostly unused
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STATIC void DEF(avg, pixels8_xy2)(uint8_t *block, const uint8_t *pixels,
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ptrdiff_t line_size, int h)
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{
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MOVQ_ZERO(mm7);
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SET_RND(mm6); // =2 for rnd and =1 for no_rnd version
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__asm__ volatile(
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"movq (%1), %%mm0 \n\t"
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"movq 1(%1), %%mm4 \n\t"
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"movq %%mm0, %%mm1 \n\t"
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"movq %%mm4, %%mm5 \n\t"
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"punpcklbw %%mm7, %%mm0 \n\t"
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"punpcklbw %%mm7, %%mm4 \n\t"
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"punpckhbw %%mm7, %%mm1 \n\t"
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"punpckhbw %%mm7, %%mm5 \n\t"
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"paddusw %%mm0, %%mm4 \n\t"
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"paddusw %%mm1, %%mm5 \n\t"
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"xor %%"REG_a", %%"REG_a" \n\t"
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"add %3, %1 \n\t"
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".p2align 3 \n\t"
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"1: \n\t"
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"movq (%1, %%"REG_a"), %%mm0 \n\t"
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"movq 1(%1, %%"REG_a"), %%mm2 \n\t"
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"movq %%mm0, %%mm1 \n\t"
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"movq %%mm2, %%mm3 \n\t"
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"punpcklbw %%mm7, %%mm0 \n\t"
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"punpcklbw %%mm7, %%mm2 \n\t"
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"punpckhbw %%mm7, %%mm1 \n\t"
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"punpckhbw %%mm7, %%mm3 \n\t"
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"paddusw %%mm2, %%mm0 \n\t"
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"paddusw %%mm3, %%mm1 \n\t"
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"paddusw %%mm6, %%mm4 \n\t"
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"paddusw %%mm6, %%mm5 \n\t"
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"paddusw %%mm0, %%mm4 \n\t"
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"paddusw %%mm1, %%mm5 \n\t"
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"psrlw $2, %%mm4 \n\t"
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"psrlw $2, %%mm5 \n\t"
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"movq (%2, %%"REG_a"), %%mm3 \n\t"
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"packuswb %%mm5, %%mm4 \n\t"
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"pcmpeqd %%mm2, %%mm2 \n\t"
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"paddb %%mm2, %%mm2 \n\t"
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PAVGB_MMX(%%mm3, %%mm4, %%mm5, %%mm2)
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"movq %%mm5, (%2, %%"REG_a") \n\t"
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"add %3, %%"REG_a" \n\t"
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"movq (%1, %%"REG_a"), %%mm2 \n\t" // 0 <-> 2 1 <-> 3
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"movq 1(%1, %%"REG_a"), %%mm4 \n\t"
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"movq %%mm2, %%mm3 \n\t"
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"movq %%mm4, %%mm5 \n\t"
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"punpcklbw %%mm7, %%mm2 \n\t"
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"punpcklbw %%mm7, %%mm4 \n\t"
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"punpckhbw %%mm7, %%mm3 \n\t"
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"punpckhbw %%mm7, %%mm5 \n\t"
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"paddusw %%mm2, %%mm4 \n\t"
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"paddusw %%mm3, %%mm5 \n\t"
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"paddusw %%mm6, %%mm0 \n\t"
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"paddusw %%mm6, %%mm1 \n\t"
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"paddusw %%mm4, %%mm0 \n\t"
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"paddusw %%mm5, %%mm1 \n\t"
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"psrlw $2, %%mm0 \n\t"
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"psrlw $2, %%mm1 \n\t"
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"movq (%2, %%"REG_a"), %%mm3 \n\t"
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"packuswb %%mm1, %%mm0 \n\t"
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"pcmpeqd %%mm2, %%mm2 \n\t"
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"paddb %%mm2, %%mm2 \n\t"
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PAVGB_MMX(%%mm3, %%mm0, %%mm1, %%mm2)
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"movq %%mm1, (%2, %%"REG_a") \n\t"
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"add %3, %%"REG_a" \n\t"
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"subl $2, %0 \n\t"
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"jnz 1b \n\t"
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:"+g"(h), "+S"(pixels)
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:"D"(block), "r"((x86_reg)line_size)
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:REG_a, "memory");
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}
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