537 lines
20 KiB
C
537 lines
20 KiB
C
/*
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* MMX optimized DSP utils
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* Copyright (c) 2000, 2001 Fabrice Bellard
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* Copyright (c) 2002-2004 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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*
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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 "config.h"
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#include "libavutil/cpu.h"
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#include "libavutil/x86/asm.h"
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#include "constants.h"
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#include "dsputil_x86.h"
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#if HAVE_INLINE_ASM
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void ff_put_pixels_clamped_mmx(const int16_t *block, uint8_t *pixels,
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int line_size)
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{
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const int16_t *p;
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uint8_t *pix;
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/* read the pixels */
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p = block;
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pix = pixels;
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/* unrolled loop */
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__asm__ volatile (
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"movq (%3), %%mm0 \n\t"
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"movq 8(%3), %%mm1 \n\t"
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"movq 16(%3), %%mm2 \n\t"
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"movq 24(%3), %%mm3 \n\t"
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"movq 32(%3), %%mm4 \n\t"
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"movq 40(%3), %%mm5 \n\t"
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"movq 48(%3), %%mm6 \n\t"
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"movq 56(%3), %%mm7 \n\t"
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"packuswb %%mm1, %%mm0 \n\t"
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"packuswb %%mm3, %%mm2 \n\t"
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"packuswb %%mm5, %%mm4 \n\t"
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"packuswb %%mm7, %%mm6 \n\t"
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"movq %%mm0, (%0) \n\t"
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"movq %%mm2, (%0, %1) \n\t"
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"movq %%mm4, (%0, %1, 2) \n\t"
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"movq %%mm6, (%0, %2) \n\t"
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:: "r"(pix), "r"((x86_reg)line_size), "r"((x86_reg)line_size * 3),
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"r"(p)
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: "memory");
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pix += line_size * 4;
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p += 32;
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// if here would be an exact copy of the code above
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// compiler would generate some very strange code
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// thus using "r"
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__asm__ volatile (
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"movq (%3), %%mm0 \n\t"
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"movq 8(%3), %%mm1 \n\t"
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"movq 16(%3), %%mm2 \n\t"
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"movq 24(%3), %%mm3 \n\t"
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"movq 32(%3), %%mm4 \n\t"
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"movq 40(%3), %%mm5 \n\t"
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"movq 48(%3), %%mm6 \n\t"
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"movq 56(%3), %%mm7 \n\t"
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"packuswb %%mm1, %%mm0 \n\t"
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"packuswb %%mm3, %%mm2 \n\t"
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"packuswb %%mm5, %%mm4 \n\t"
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"packuswb %%mm7, %%mm6 \n\t"
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"movq %%mm0, (%0) \n\t"
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"movq %%mm2, (%0, %1) \n\t"
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"movq %%mm4, (%0, %1, 2) \n\t"
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"movq %%mm6, (%0, %2) \n\t"
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:: "r"(pix), "r"((x86_reg)line_size), "r"((x86_reg)line_size * 3), "r"(p)
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: "memory");
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}
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#define put_signed_pixels_clamped_mmx_half(off) \
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"movq "#off"(%2), %%mm1 \n\t" \
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"movq 16 + "#off"(%2), %%mm2 \n\t" \
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"movq 32 + "#off"(%2), %%mm3 \n\t" \
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"movq 48 + "#off"(%2), %%mm4 \n\t" \
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"packsswb 8 + "#off"(%2), %%mm1 \n\t" \
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"packsswb 24 + "#off"(%2), %%mm2 \n\t" \
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"packsswb 40 + "#off"(%2), %%mm3 \n\t" \
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"packsswb 56 + "#off"(%2), %%mm4 \n\t" \
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"paddb %%mm0, %%mm1 \n\t" \
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"paddb %%mm0, %%mm2 \n\t" \
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"paddb %%mm0, %%mm3 \n\t" \
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"paddb %%mm0, %%mm4 \n\t" \
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"movq %%mm1, (%0) \n\t" \
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"movq %%mm2, (%0, %3) \n\t" \
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"movq %%mm3, (%0, %3, 2) \n\t" \
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"movq %%mm4, (%0, %1) \n\t"
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void ff_put_signed_pixels_clamped_mmx(const int16_t *block, uint8_t *pixels,
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int line_size)
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{
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x86_reg line_skip = line_size;
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x86_reg line_skip3;
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__asm__ volatile (
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"movq "MANGLE(ff_pb_80)", %%mm0 \n\t"
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"lea (%3, %3, 2), %1 \n\t"
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put_signed_pixels_clamped_mmx_half(0)
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"lea (%0, %3, 4), %0 \n\t"
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put_signed_pixels_clamped_mmx_half(64)
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: "+&r"(pixels), "=&r"(line_skip3)
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: "r"(block), "r"(line_skip)
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: "memory");
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}
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void ff_add_pixels_clamped_mmx(const int16_t *block, uint8_t *pixels,
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int line_size)
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{
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const int16_t *p;
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uint8_t *pix;
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int i;
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/* read the pixels */
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p = block;
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pix = pixels;
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MOVQ_ZERO(mm7);
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i = 4;
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do {
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__asm__ volatile (
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"movq (%2), %%mm0 \n\t"
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"movq 8(%2), %%mm1 \n\t"
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"movq 16(%2), %%mm2 \n\t"
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"movq 24(%2), %%mm3 \n\t"
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"movq %0, %%mm4 \n\t"
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"movq %1, %%mm6 \n\t"
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"movq %%mm4, %%mm5 \n\t"
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"punpcklbw %%mm7, %%mm4 \n\t"
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"punpckhbw %%mm7, %%mm5 \n\t"
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"paddsw %%mm4, %%mm0 \n\t"
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"paddsw %%mm5, %%mm1 \n\t"
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"movq %%mm6, %%mm5 \n\t"
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"punpcklbw %%mm7, %%mm6 \n\t"
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"punpckhbw %%mm7, %%mm5 \n\t"
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"paddsw %%mm6, %%mm2 \n\t"
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"paddsw %%mm5, %%mm3 \n\t"
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"packuswb %%mm1, %%mm0 \n\t"
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"packuswb %%mm3, %%mm2 \n\t"
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"movq %%mm0, %0 \n\t"
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"movq %%mm2, %1 \n\t"
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: "+m"(*pix), "+m"(*(pix + line_size))
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: "r"(p)
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: "memory");
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pix += line_size * 2;
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p += 16;
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} while (--i);
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}
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#define CLEAR_BLOCKS(name, n) \
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void name(int16_t *blocks) \
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{ \
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__asm__ volatile ( \
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"pxor %%mm7, %%mm7 \n\t" \
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"mov %1, %%"REG_a" \n\t" \
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"1: \n\t" \
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"movq %%mm7, (%0, %%"REG_a") \n\t" \
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"movq %%mm7, 8(%0, %%"REG_a") \n\t" \
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"movq %%mm7, 16(%0, %%"REG_a") \n\t" \
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"movq %%mm7, 24(%0, %%"REG_a") \n\t" \
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"add $32, %%"REG_a" \n\t" \
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"js 1b \n\t" \
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:: "r"(((uint8_t *)blocks) + 128 * n), \
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"i"(-128 * n) \
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: "%"REG_a \
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); \
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}
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CLEAR_BLOCKS(ff_clear_blocks_mmx, 6)
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CLEAR_BLOCKS(ff_clear_block_mmx, 1)
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void ff_clear_block_sse(int16_t *block)
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{
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__asm__ volatile (
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"xorps %%xmm0, %%xmm0 \n"
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"movaps %%xmm0, (%0) \n"
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"movaps %%xmm0, 16(%0) \n"
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"movaps %%xmm0, 32(%0) \n"
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"movaps %%xmm0, 48(%0) \n"
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"movaps %%xmm0, 64(%0) \n"
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"movaps %%xmm0, 80(%0) \n"
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"movaps %%xmm0, 96(%0) \n"
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"movaps %%xmm0, 112(%0) \n"
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:: "r"(block)
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: "memory"
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);
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}
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void ff_clear_blocks_sse(int16_t *blocks)
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{
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__asm__ volatile (
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"xorps %%xmm0, %%xmm0 \n"
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"mov %1, %%"REG_a" \n"
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"1: \n"
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"movaps %%xmm0, (%0, %%"REG_a") \n"
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"movaps %%xmm0, 16(%0, %%"REG_a") \n"
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"movaps %%xmm0, 32(%0, %%"REG_a") \n"
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"movaps %%xmm0, 48(%0, %%"REG_a") \n"
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"movaps %%xmm0, 64(%0, %%"REG_a") \n"
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"movaps %%xmm0, 80(%0, %%"REG_a") \n"
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"movaps %%xmm0, 96(%0, %%"REG_a") \n"
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"movaps %%xmm0, 112(%0, %%"REG_a") \n"
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"add $128, %%"REG_a" \n"
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"js 1b \n"
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:: "r"(((uint8_t *)blocks) + 128 * 6),
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"i"(-128 * 6)
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: "%"REG_a
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);
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}
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void ff_add_bytes_mmx(uint8_t *dst, uint8_t *src, int w)
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{
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x86_reg i = 0;
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__asm__ volatile (
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"jmp 2f \n\t"
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"1: \n\t"
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"movq (%1, %0), %%mm0 \n\t"
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"movq (%2, %0), %%mm1 \n\t"
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"paddb %%mm0, %%mm1 \n\t"
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"movq %%mm1, (%2, %0) \n\t"
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"movq 8(%1, %0), %%mm0 \n\t"
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"movq 8(%2, %0), %%mm1 \n\t"
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"paddb %%mm0, %%mm1 \n\t"
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"movq %%mm1, 8(%2, %0) \n\t"
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"add $16, %0 \n\t"
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"2: \n\t"
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"cmp %3, %0 \n\t"
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"js 1b \n\t"
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: "+r"(i)
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: "r"(src), "r"(dst), "r"((x86_reg)w - 15)
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);
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for ( ; i < w; i++)
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dst[i + 0] += src[i + 0];
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}
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#if HAVE_7REGS
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void ff_add_hfyu_median_prediction_cmov(uint8_t *dst, const uint8_t *top,
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const uint8_t *diff, int w,
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int *left, int *left_top)
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{
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x86_reg w2 = -w;
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x86_reg x;
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int l = *left & 0xff;
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int tl = *left_top & 0xff;
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int t;
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__asm__ volatile (
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"mov %7, %3 \n"
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"1: \n"
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"movzbl (%3, %4), %2 \n"
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"mov %2, %k3 \n"
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"sub %b1, %b3 \n"
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"add %b0, %b3 \n"
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"mov %2, %1 \n"
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"cmp %0, %2 \n"
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"cmovg %0, %2 \n"
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"cmovg %1, %0 \n"
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"cmp %k3, %0 \n"
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"cmovg %k3, %0 \n"
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"mov %7, %3 \n"
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"cmp %2, %0 \n"
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"cmovl %2, %0 \n"
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"add (%6, %4), %b0 \n"
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"mov %b0, (%5, %4) \n"
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"inc %4 \n"
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"jl 1b \n"
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: "+&q"(l), "+&q"(tl), "=&r"(t), "=&q"(x), "+&r"(w2)
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: "r"(dst + w), "r"(diff + w), "rm"(top + w)
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);
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*left = l;
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*left_top = tl;
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}
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#endif
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/* Draw the edges of width 'w' of an image of size width, height
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* this MMX version can only handle w == 8 || w == 16. */
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void ff_draw_edges_mmx(uint8_t *buf, int wrap, int width, int height,
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int w, int h, int sides)
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{
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uint8_t *ptr, *last_line;
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int i;
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last_line = buf + (height - 1) * wrap;
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/* left and right */
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ptr = buf;
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if (w == 8) {
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__asm__ volatile (
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"1: \n\t"
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"movd (%0), %%mm0 \n\t"
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"punpcklbw %%mm0, %%mm0 \n\t"
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"punpcklwd %%mm0, %%mm0 \n\t"
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"punpckldq %%mm0, %%mm0 \n\t"
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"movq %%mm0, -8(%0) \n\t"
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"movq -8(%0, %2), %%mm1 \n\t"
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"punpckhbw %%mm1, %%mm1 \n\t"
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"punpckhwd %%mm1, %%mm1 \n\t"
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"punpckhdq %%mm1, %%mm1 \n\t"
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"movq %%mm1, (%0, %2) \n\t"
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"add %1, %0 \n\t"
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"cmp %3, %0 \n\t"
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"jb 1b \n\t"
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: "+r"(ptr)
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: "r"((x86_reg)wrap), "r"((x86_reg)width), "r"(ptr + wrap * height)
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);
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} else {
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__asm__ volatile (
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"1: \n\t"
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"movd (%0), %%mm0 \n\t"
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"punpcklbw %%mm0, %%mm0 \n\t"
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"punpcklwd %%mm0, %%mm0 \n\t"
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"punpckldq %%mm0, %%mm0 \n\t"
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"movq %%mm0, -8(%0) \n\t"
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"movq %%mm0, -16(%0) \n\t"
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"movq -8(%0, %2), %%mm1 \n\t"
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"punpckhbw %%mm1, %%mm1 \n\t"
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"punpckhwd %%mm1, %%mm1 \n\t"
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"punpckhdq %%mm1, %%mm1 \n\t"
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"movq %%mm1, (%0, %2) \n\t"
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"movq %%mm1, 8(%0, %2) \n\t"
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"add %1, %0 \n\t"
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"cmp %3, %0 \n\t"
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"jb 1b \n\t"
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: "+r"(ptr)
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: "r"((x86_reg)wrap), "r"((x86_reg)width), "r"(ptr + wrap * height)
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);
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}
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/* top and bottom (and hopefully also the corners) */
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if (sides & EDGE_TOP) {
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for (i = 0; i < h; i += 4) {
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ptr = buf - (i + 1) * wrap - w;
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__asm__ volatile (
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"1: \n\t"
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"movq (%1, %0), %%mm0 \n\t"
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"movq %%mm0, (%0) \n\t"
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"movq %%mm0, (%0, %2) \n\t"
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"movq %%mm0, (%0, %2, 2) \n\t"
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"movq %%mm0, (%0, %3) \n\t"
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"add $8, %0 \n\t"
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"cmp %4, %0 \n\t"
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"jb 1b \n\t"
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: "+r"(ptr)
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: "r"((x86_reg)buf - (x86_reg)ptr - w), "r"((x86_reg) -wrap),
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"r"((x86_reg) -wrap * 3), "r"(ptr + width + 2 * w)
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);
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}
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}
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if (sides & EDGE_BOTTOM) {
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for (i = 0; i < h; i += 4) {
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ptr = last_line + (i + 1) * wrap - w;
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__asm__ volatile (
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"1: \n\t"
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"movq (%1, %0), %%mm0 \n\t"
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"movq %%mm0, (%0) \n\t"
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"movq %%mm0, (%0, %2) \n\t"
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"movq %%mm0, (%0, %2, 2) \n\t"
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"movq %%mm0, (%0, %3) \n\t"
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"add $8, %0 \n\t"
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"cmp %4, %0 \n\t"
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"jb 1b \n\t"
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: "+r"(ptr)
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: "r"((x86_reg)last_line - (x86_reg)ptr - w),
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"r"((x86_reg)wrap), "r"((x86_reg)wrap * 3),
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"r"(ptr + width + 2 * w)
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);
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}
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}
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}
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void ff_gmc_mmx(uint8_t *dst, uint8_t *src,
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int stride, int h, int ox, int oy,
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int dxx, int dxy, int dyx, int dyy,
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int shift, int r, int width, int height)
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{
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const int w = 8;
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const int ix = ox >> (16 + shift);
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const int iy = oy >> (16 + shift);
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const int oxs = ox >> 4;
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const int oys = oy >> 4;
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const int dxxs = dxx >> 4;
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const int dxys = dxy >> 4;
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const int dyxs = dyx >> 4;
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const int dyys = dyy >> 4;
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const uint16_t r4[4] = { r, r, r, r };
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const uint16_t dxy4[4] = { dxys, dxys, dxys, dxys };
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const uint16_t dyy4[4] = { dyys, dyys, dyys, dyys };
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const uint64_t shift2 = 2 * shift;
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int x, y;
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const int dxw = (dxx - (1 << (16 + shift))) * (w - 1);
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const int dyh = (dyy - (1 << (16 + shift))) * (h - 1);
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const int dxh = dxy * (h - 1);
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const int dyw = dyx * (w - 1);
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if ( // non-constant fullpel offset (3% of blocks)
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((ox ^ (ox + dxw)) | (ox ^ (ox + dxh)) | (ox ^ (ox + dxw + dxh)) |
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(oy ^ (oy + dyw)) | (oy ^ (oy + dyh)) | (oy ^ (oy + dyw + dyh))) >> (16 + shift)
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// uses more than 16 bits of subpel mv (only at huge resolution)
|
|
|| (dxx | dxy | dyx | dyy) & 15 ||
|
|
(unsigned)ix >= width - w ||
|
|
(unsigned)iy >= height - h) {
|
|
// FIXME could still use mmx for some of the rows
|
|
ff_gmc_c(dst, src, stride, h, ox, oy, dxx, dxy, dyx, dyy,
|
|
shift, r, width, height);
|
|
return;
|
|
}
|
|
|
|
src += ix + iy * stride;
|
|
|
|
__asm__ volatile (
|
|
"movd %0, %%mm6 \n\t"
|
|
"pxor %%mm7, %%mm7 \n\t"
|
|
"punpcklwd %%mm6, %%mm6 \n\t"
|
|
"punpcklwd %%mm6, %%mm6 \n\t"
|
|
:: "r"(1<<shift)
|
|
);
|
|
|
|
for (x = 0; x < w; x += 4) {
|
|
uint16_t dx4[4] = { oxs - dxys + dxxs * (x + 0),
|
|
oxs - dxys + dxxs * (x + 1),
|
|
oxs - dxys + dxxs * (x + 2),
|
|
oxs - dxys + dxxs * (x + 3) };
|
|
uint16_t dy4[4] = { oys - dyys + dyxs * (x + 0),
|
|
oys - dyys + dyxs * (x + 1),
|
|
oys - dyys + dyxs * (x + 2),
|
|
oys - dyys + dyxs * (x + 3) };
|
|
|
|
for (y = 0; y < h; y++) {
|
|
__asm__ volatile (
|
|
"movq %0, %%mm4 \n\t"
|
|
"movq %1, %%mm5 \n\t"
|
|
"paddw %2, %%mm4 \n\t"
|
|
"paddw %3, %%mm5 \n\t"
|
|
"movq %%mm4, %0 \n\t"
|
|
"movq %%mm5, %1 \n\t"
|
|
"psrlw $12, %%mm4 \n\t"
|
|
"psrlw $12, %%mm5 \n\t"
|
|
: "+m"(*dx4), "+m"(*dy4)
|
|
: "m"(*dxy4), "m"(*dyy4)
|
|
);
|
|
|
|
__asm__ volatile (
|
|
"movq %%mm6, %%mm2 \n\t"
|
|
"movq %%mm6, %%mm1 \n\t"
|
|
"psubw %%mm4, %%mm2 \n\t"
|
|
"psubw %%mm5, %%mm1 \n\t"
|
|
"movq %%mm2, %%mm0 \n\t"
|
|
"movq %%mm4, %%mm3 \n\t"
|
|
"pmullw %%mm1, %%mm0 \n\t" // (s - dx) * (s - dy)
|
|
"pmullw %%mm5, %%mm3 \n\t" // dx * dy
|
|
"pmullw %%mm5, %%mm2 \n\t" // (s - dx) * dy
|
|
"pmullw %%mm4, %%mm1 \n\t" // dx * (s - dy)
|
|
|
|
"movd %4, %%mm5 \n\t"
|
|
"movd %3, %%mm4 \n\t"
|
|
"punpcklbw %%mm7, %%mm5 \n\t"
|
|
"punpcklbw %%mm7, %%mm4 \n\t"
|
|
"pmullw %%mm5, %%mm3 \n\t" // src[1, 1] * dx * dy
|
|
"pmullw %%mm4, %%mm2 \n\t" // src[0, 1] * (s - dx) * dy
|
|
|
|
"movd %2, %%mm5 \n\t"
|
|
"movd %1, %%mm4 \n\t"
|
|
"punpcklbw %%mm7, %%mm5 \n\t"
|
|
"punpcklbw %%mm7, %%mm4 \n\t"
|
|
"pmullw %%mm5, %%mm1 \n\t" // src[1, 0] * dx * (s - dy)
|
|
"pmullw %%mm4, %%mm0 \n\t" // src[0, 0] * (s - dx) * (s - dy)
|
|
"paddw %5, %%mm1 \n\t"
|
|
"paddw %%mm3, %%mm2 \n\t"
|
|
"paddw %%mm1, %%mm0 \n\t"
|
|
"paddw %%mm2, %%mm0 \n\t"
|
|
|
|
"psrlw %6, %%mm0 \n\t"
|
|
"packuswb %%mm0, %%mm0 \n\t"
|
|
"movd %%mm0, %0 \n\t"
|
|
|
|
: "=m"(dst[x + y * stride])
|
|
: "m"(src[0]), "m"(src[1]),
|
|
"m"(src[stride]), "m"(src[stride + 1]),
|
|
"m"(*r4), "m"(shift2)
|
|
);
|
|
src += stride;
|
|
}
|
|
src += 4 - h * stride;
|
|
}
|
|
}
|
|
|
|
void ff_vector_clipf_sse(float *dst, const float *src,
|
|
float min, float max, int len)
|
|
{
|
|
x86_reg i = (len - 16) * 4;
|
|
__asm__ volatile (
|
|
"movss %3, %%xmm4 \n\t"
|
|
"movss %4, %%xmm5 \n\t"
|
|
"shufps $0, %%xmm4, %%xmm4 \n\t"
|
|
"shufps $0, %%xmm5, %%xmm5 \n\t"
|
|
"1: \n\t"
|
|
"movaps (%2, %0), %%xmm0 \n\t" // 3/1 on intel
|
|
"movaps 16(%2, %0), %%xmm1 \n\t"
|
|
"movaps 32(%2, %0), %%xmm2 \n\t"
|
|
"movaps 48(%2, %0), %%xmm3 \n\t"
|
|
"maxps %%xmm4, %%xmm0 \n\t"
|
|
"maxps %%xmm4, %%xmm1 \n\t"
|
|
"maxps %%xmm4, %%xmm2 \n\t"
|
|
"maxps %%xmm4, %%xmm3 \n\t"
|
|
"minps %%xmm5, %%xmm0 \n\t"
|
|
"minps %%xmm5, %%xmm1 \n\t"
|
|
"minps %%xmm5, %%xmm2 \n\t"
|
|
"minps %%xmm5, %%xmm3 \n\t"
|
|
"movaps %%xmm0, (%1, %0) \n\t"
|
|
"movaps %%xmm1, 16(%1, %0) \n\t"
|
|
"movaps %%xmm2, 32(%1, %0) \n\t"
|
|
"movaps %%xmm3, 48(%1, %0) \n\t"
|
|
"sub $64, %0 \n\t"
|
|
"jge 1b \n\t"
|
|
: "+&r"(i)
|
|
: "r"(dst), "r"(src), "m"(min), "m"(max)
|
|
: "memory"
|
|
);
|
|
}
|
|
|
|
#endif /* HAVE_INLINE_ASM */
|