mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-07 11:13:41 +02:00
133 lines
4.5 KiB
C
133 lines
4.5 KiB
C
/*
|
|
* Copyright (c) 2009 Loren Merritt <lorenm@u.washington.edu>
|
|
*
|
|
* 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 "config.h"
|
|
#include "libavutil/attributes.h"
|
|
#include "libavutil/cpu.h"
|
|
#include "libavutil/x86/asm.h"
|
|
#include "libavutil/x86/cpu.h"
|
|
#include "libavcodec/huffyuvdsp.h"
|
|
|
|
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);
|
|
|
|
int ff_add_hfyu_left_pred_ssse3(uint8_t *dst, const uint8_t *src,
|
|
int w, int left);
|
|
int ff_add_hfyu_left_pred_unaligned_ssse3(uint8_t *dst, const uint8_t *src,
|
|
int w, int left);
|
|
|
|
#if HAVE_INLINE_ASM
|
|
|
|
#if HAVE_7REGS
|
|
static void add_hfyu_median_pred_cmov(uint8_t *dst, const uint8_t *top,
|
|
const uint8_t *diff, int w,
|
|
int *left, int *left_top)
|
|
{
|
|
x86_reg w2 = -w;
|
|
x86_reg x;
|
|
int l = *left & 0xff;
|
|
int tl = *left_top & 0xff;
|
|
int t;
|
|
__asm__ volatile (
|
|
"mov %7, %3 \n"
|
|
"1: \n"
|
|
"movzbl (%3, %4), %2 \n"
|
|
"mov %2, %k3 \n"
|
|
"sub %b1, %b3 \n"
|
|
"add %b0, %b3 \n"
|
|
"mov %2, %1 \n"
|
|
"cmp %0, %2 \n"
|
|
"cmovg %0, %2 \n"
|
|
"cmovg %1, %0 \n"
|
|
"cmp %k3, %0 \n"
|
|
"cmovg %k3, %0 \n"
|
|
"mov %7, %3 \n"
|
|
"cmp %2, %0 \n"
|
|
"cmovl %2, %0 \n"
|
|
"add (%6, %4), %b0 \n"
|
|
"mov %b0, (%5, %4) \n"
|
|
"inc %4 \n"
|
|
"jl 1b \n"
|
|
: "+&q"(l), "+&q"(tl), "=&r"(t), "=&q"(x), "+&r"(w2)
|
|
: "r"(dst + w), "r"(diff + w), "rm"(top + w)
|
|
);
|
|
*left = l;
|
|
*left_top = tl;
|
|
}
|
|
#endif /* HAVE_7REGS */
|
|
|
|
static void add_bytes_mmx(uint8_t *dst, uint8_t *src, int w)
|
|
{
|
|
x86_reg i = 0;
|
|
|
|
__asm__ volatile (
|
|
"jmp 2f \n\t"
|
|
"1: \n\t"
|
|
"movq (%1, %0), %%mm0 \n\t"
|
|
"movq (%2, %0), %%mm1 \n\t"
|
|
"paddb %%mm0, %%mm1 \n\t"
|
|
"movq %%mm1, (%2, %0) \n\t"
|
|
"movq 8(%1, %0), %%mm0 \n\t"
|
|
"movq 8(%2, %0), %%mm1 \n\t"
|
|
"paddb %%mm0, %%mm1 \n\t"
|
|
"movq %%mm1, 8(%2, %0) \n\t"
|
|
"add $16, %0 \n\t"
|
|
"2: \n\t"
|
|
"cmp %3, %0 \n\t"
|
|
"js 1b \n\t"
|
|
: "+r" (i)
|
|
: "r" (src), "r" (dst), "r" ((x86_reg) w - 15));
|
|
|
|
for (; i < w; i++)
|
|
dst[i + 0] += src[i + 0];
|
|
}
|
|
|
|
#endif /* HAVE_INLINE_ASM */
|
|
|
|
av_cold void ff_huffyuvdsp_init_x86(HuffYUVDSPContext *c)
|
|
{
|
|
int cpu_flags = av_get_cpu_flags();
|
|
|
|
#if HAVE_INLINE_ASM
|
|
#if HAVE_7REGS
|
|
if (cpu_flags & AV_CPU_FLAG_CMOV)
|
|
c->add_hfyu_median_pred = add_hfyu_median_pred_cmov;
|
|
#endif /* HAVE_7REGS */
|
|
|
|
if (INLINE_MMX(cpu_flags))
|
|
c->add_bytes = add_bytes_mmx;
|
|
#endif /* HAVE_INLINE_ASM */
|
|
|
|
if (EXTERNAL_MMXEXT(cpu_flags)) {
|
|
/* slower than cmov version on AMD */
|
|
if (!(cpu_flags & AV_CPU_FLAG_3DNOW))
|
|
c->add_hfyu_median_pred = ff_add_hfyu_median_pred_mmxext;
|
|
}
|
|
|
|
if (EXTERNAL_SSSE3(cpu_flags)) {
|
|
c->add_hfyu_left_pred = ff_add_hfyu_left_pred_ssse3;
|
|
}
|
|
|
|
if (EXTERNAL_SSSE3_FAST(cpu_flags)) {
|
|
c->add_hfyu_left_pred = ff_add_hfyu_left_pred_unaligned_ssse3;
|
|
}
|
|
}
|