mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-11-26 19:01:44 +02:00
121 lines
4.2 KiB
C
121 lines
4.2 KiB
C
/*
|
|
* 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 <stdint.h>
|
|
|
|
#include "config.h"
|
|
#include "libavutil/attributes.h"
|
|
#include "libavutil/internal.h"
|
|
#include "libavutil/cpu.h"
|
|
#include "libavutil/x86/asm.h"
|
|
#include "libavutil/x86/cpu.h"
|
|
#include "libavcodec/blockdsp.h"
|
|
#include "libavcodec/version.h"
|
|
|
|
#if HAVE_INLINE_ASM
|
|
|
|
#define CLEAR_BLOCKS(name, n) \
|
|
static void name(int16_t *blocks) \
|
|
{ \
|
|
__asm__ volatile ( \
|
|
"pxor %%mm7, %%mm7 \n\t" \
|
|
"mov %1, %%"REG_a" \n\t" \
|
|
"1: \n\t" \
|
|
"movq %%mm7, (%0, %%"REG_a") \n\t" \
|
|
"movq %%mm7, 8(%0, %%"REG_a") \n\t" \
|
|
"movq %%mm7, 16(%0, %%"REG_a") \n\t" \
|
|
"movq %%mm7, 24(%0, %%"REG_a") \n\t" \
|
|
"add $32, %%"REG_a" \n\t" \
|
|
"js 1b \n\t" \
|
|
:: "r"(((uint8_t *) blocks) + 128 * n), \
|
|
"i"(-128 * n) \
|
|
: "%"REG_a); \
|
|
}
|
|
CLEAR_BLOCKS(clear_blocks_mmx, 6)
|
|
CLEAR_BLOCKS(clear_block_mmx, 1)
|
|
|
|
static void clear_block_sse(int16_t *block)
|
|
{
|
|
__asm__ volatile (
|
|
"xorps %%xmm0, %%xmm0 \n"
|
|
"movaps %%xmm0, (%0) \n"
|
|
"movaps %%xmm0, 16(%0) \n"
|
|
"movaps %%xmm0, 32(%0) \n"
|
|
"movaps %%xmm0, 48(%0) \n"
|
|
"movaps %%xmm0, 64(%0) \n"
|
|
"movaps %%xmm0, 80(%0) \n"
|
|
"movaps %%xmm0, 96(%0) \n"
|
|
"movaps %%xmm0, 112(%0) \n"
|
|
:: "r" (block)
|
|
: "memory");
|
|
}
|
|
|
|
static void clear_blocks_sse(int16_t *blocks)
|
|
{
|
|
__asm__ volatile (
|
|
"xorps %%xmm0, %%xmm0 \n"
|
|
"mov %1, %%"REG_a" \n"
|
|
"1: \n"
|
|
"movaps %%xmm0, (%0, %%"REG_a") \n"
|
|
"movaps %%xmm0, 16(%0, %%"REG_a") \n"
|
|
"movaps %%xmm0, 32(%0, %%"REG_a") \n"
|
|
"movaps %%xmm0, 48(%0, %%"REG_a") \n"
|
|
"movaps %%xmm0, 64(%0, %%"REG_a") \n"
|
|
"movaps %%xmm0, 80(%0, %%"REG_a") \n"
|
|
"movaps %%xmm0, 96(%0, %%"REG_a") \n"
|
|
"movaps %%xmm0, 112(%0, %%"REG_a") \n"
|
|
"add $128, %%"REG_a" \n"
|
|
"js 1b \n"
|
|
:: "r"(((uint8_t *) blocks) + 128 * 6), "i"(-128 * 6)
|
|
: "%"REG_a);
|
|
}
|
|
|
|
#endif /* HAVE_INLINE_ASM */
|
|
|
|
#if FF_API_XVMC
|
|
av_cold void ff_blockdsp_init_x86(BlockDSPContext *c, unsigned high_bit_depth,
|
|
AVCodecContext *avctx)
|
|
#else
|
|
av_cold void ff_blockdsp_init_x86(BlockDSPContext *c, unsigned high_bit_depth)
|
|
#endif /* FF_API_XVMC */
|
|
{
|
|
#if HAVE_INLINE_ASM
|
|
int cpu_flags = av_get_cpu_flags();
|
|
|
|
if (!high_bit_depth) {
|
|
if (INLINE_MMX(cpu_flags)) {
|
|
c->clear_block = clear_block_mmx;
|
|
c->clear_blocks = clear_blocks_mmx;
|
|
}
|
|
|
|
#if FF_API_XVMC
|
|
FF_DISABLE_DEPRECATION_WARNINGS
|
|
/* XvMCCreateBlocks() may not allocate 16-byte aligned blocks */
|
|
if (CONFIG_MPEG_XVMC_DECODER && avctx->xvmc_acceleration > 1)
|
|
return;
|
|
FF_ENABLE_DEPRECATION_WARNINGS
|
|
#endif /* FF_API_XVMC */
|
|
|
|
if (INLINE_SSE(cpu_flags)) {
|
|
c->clear_block = clear_block_sse;
|
|
c->clear_blocks = clear_blocks_sse;
|
|
}
|
|
}
|
|
#endif /* HAVE_INLINE_ASM */
|
|
}
|