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ffmpeg/libavcodec/x86/hpeldsp_init.c

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/*
* MMX optimized DSP utils
* Copyright (c) 2000, 2001 Fabrice Bellard
* Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
*
* This file is part of FFmpeg.
*
* FFmpeg 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.
*
* FFmpeg 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 FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* MMX optimization by Nick Kurshev <nickols_k@mail.ru>
*/
#include "libavutil/cpu.h"
#include "libavutil/x86/asm.h"
#include "libavcodec/hpeldsp.h"
#include "dsputil_mmx.h"
//#undef NDEBUG
//#include <assert.h>
#if HAVE_YASM
void ff_put_pixels8_x2_mmxext(uint8_t *block, const uint8_t *pixels,
ptrdiff_t line_size, int h);
void ff_put_pixels8_x2_3dnow(uint8_t *block, const uint8_t *pixels,
ptrdiff_t line_size, int h);
void ff_put_pixels16_x2_mmxext(uint8_t *block, const uint8_t *pixels,
ptrdiff_t line_size, int h);
void ff_put_pixels16_x2_3dnow(uint8_t *block, const uint8_t *pixels,
ptrdiff_t line_size, int h);
void ff_put_no_rnd_pixels8_x2_mmxext(uint8_t *block, const uint8_t *pixels,
ptrdiff_t line_size, int h);
void ff_put_no_rnd_pixels8_x2_3dnow(uint8_t *block, const uint8_t *pixels,
ptrdiff_t line_size, int h);
void ff_put_no_rnd_pixels8_x2_exact_mmxext(uint8_t *block,
const uint8_t *pixels,
ptrdiff_t line_size, int h);
void ff_put_no_rnd_pixels8_x2_exact_3dnow(uint8_t *block,
const uint8_t *pixels,
ptrdiff_t line_size, int h);
void ff_put_pixels8_y2_mmxext(uint8_t *block, const uint8_t *pixels,
ptrdiff_t line_size, int h);
void ff_put_pixels8_y2_3dnow(uint8_t *block, const uint8_t *pixels,
ptrdiff_t line_size, int h);
void ff_put_no_rnd_pixels8_y2_mmxext(uint8_t *block, const uint8_t *pixels,
ptrdiff_t line_size, int h);
void ff_put_no_rnd_pixels8_y2_3dnow(uint8_t *block, const uint8_t *pixels,
ptrdiff_t line_size, int h);
void ff_put_no_rnd_pixels8_y2_exact_mmxext(uint8_t *block,
const uint8_t *pixels,
ptrdiff_t line_size, int h);
void ff_put_no_rnd_pixels8_y2_exact_3dnow(uint8_t *block,
const uint8_t *pixels,
ptrdiff_t line_size, int h);
void ff_avg_pixels8_3dnow(uint8_t *block, const uint8_t *pixels,
ptrdiff_t line_size, int h);
void ff_avg_pixels8_x2_mmxext(uint8_t *block, const uint8_t *pixels,
ptrdiff_t line_size, int h);
void ff_avg_pixels8_x2_3dnow(uint8_t *block, const uint8_t *pixels,
ptrdiff_t line_size, int h);
void ff_avg_pixels8_y2_mmxext(uint8_t *block, const uint8_t *pixels,
ptrdiff_t line_size, int h);
void ff_avg_pixels8_y2_3dnow(uint8_t *block, const uint8_t *pixels,
ptrdiff_t line_size, int h);
void ff_avg_pixels8_xy2_mmxext(uint8_t *block, const uint8_t *pixels,
ptrdiff_t line_size, int h);
void ff_avg_pixels8_xy2_3dnow(uint8_t *block, const uint8_t *pixels,
ptrdiff_t line_size, int h);
#endif /* HAVE_YASM */
#if HAVE_INLINE_ASM
#define JUMPALIGN() __asm__ volatile (".p2align 3"::)
#define MOVQ_ZERO(regd) __asm__ volatile ("pxor %%"#regd", %%"#regd ::)
#define MOVQ_BFE(regd) \
__asm__ volatile ( \
"pcmpeqd %%"#regd", %%"#regd" \n\t" \
"paddb %%"#regd", %%"#regd" \n\t" ::)
#ifndef PIC
#define MOVQ_BONE(regd) __asm__ volatile ("movq %0, %%"#regd" \n\t" :: "m"(ff_bone))
#define MOVQ_WTWO(regd) __asm__ volatile ("movq %0, %%"#regd" \n\t" :: "m"(ff_wtwo))
#else
// for shared library it's better to use this way for accessing constants
// pcmpeqd -> -1
#define MOVQ_BONE(regd) \
__asm__ volatile ( \
"pcmpeqd %%"#regd", %%"#regd" \n\t" \
"psrlw $15, %%"#regd" \n\t" \
"packuswb %%"#regd", %%"#regd" \n\t" ::)
#define MOVQ_WTWO(regd) \
__asm__ volatile ( \
"pcmpeqd %%"#regd", %%"#regd" \n\t" \
"psrlw $15, %%"#regd" \n\t" \
"psllw $1, %%"#regd" \n\t"::)
#endif
// using regr as temporary and for the output result
// first argument is unmodifed and second is trashed
// regfe is supposed to contain 0xfefefefefefefefe
#define PAVGB_MMX_NO_RND(rega, regb, regr, regfe) \
"movq "#rega", "#regr" \n\t" \
"pand "#regb", "#regr" \n\t" \
"pxor "#rega", "#regb" \n\t" \
"pand "#regfe", "#regb" \n\t" \
"psrlq $1, "#regb" \n\t" \
"paddb "#regb", "#regr" \n\t"
#define PAVGB_MMX(rega, regb, regr, regfe) \
"movq "#rega", "#regr" \n\t" \
"por "#regb", "#regr" \n\t" \
"pxor "#rega", "#regb" \n\t" \
"pand "#regfe", "#regb" \n\t" \
"psrlq $1, "#regb" \n\t" \
"psubb "#regb", "#regr" \n\t"
// mm6 is supposed to contain 0xfefefefefefefefe
#define PAVGBP_MMX_NO_RND(rega, regb, regr, regc, regd, regp) \
"movq "#rega", "#regr" \n\t" \
"movq "#regc", "#regp" \n\t" \
"pand "#regb", "#regr" \n\t" \
"pand "#regd", "#regp" \n\t" \
"pxor "#rega", "#regb" \n\t" \
"pxor "#regc", "#regd" \n\t" \
"pand %%mm6, "#regb" \n\t" \
"pand %%mm6, "#regd" \n\t" \
"psrlq $1, "#regb" \n\t" \
"psrlq $1, "#regd" \n\t" \
"paddb "#regb", "#regr" \n\t" \
"paddb "#regd", "#regp" \n\t"
#define PAVGBP_MMX(rega, regb, regr, regc, regd, regp) \
"movq "#rega", "#regr" \n\t" \
"movq "#regc", "#regp" \n\t" \
"por "#regb", "#regr" \n\t" \
"por "#regd", "#regp" \n\t" \
"pxor "#rega", "#regb" \n\t" \
"pxor "#regc", "#regd" \n\t" \
"pand %%mm6, "#regb" \n\t" \
"pand %%mm6, "#regd" \n\t" \
"psrlq $1, "#regd" \n\t" \
"psrlq $1, "#regb" \n\t" \
"psubb "#regb", "#regr" \n\t" \
"psubb "#regd", "#regp" \n\t"
/***********************************/
/* MMX no rounding */
#define NO_RND 1
#define DEF(x, y) x ## _no_rnd_ ## y ## _mmx
#define SET_RND MOVQ_WONE
#define PAVGBP(a, b, c, d, e, f) PAVGBP_MMX_NO_RND(a, b, c, d, e, f)
#define PAVGB(a, b, c, e) PAVGB_MMX_NO_RND(a, b, c, e)
#define OP_AVG(a, b, c, e) PAVGB_MMX(a, b, c, e)
#include "hpeldsp_rnd_template.c"
#undef DEF
#undef SET_RND
#undef PAVGBP
#undef PAVGB
#undef NO_RND
/***********************************/
/* MMX rounding */
#define DEF(x, y) x ## _ ## y ## _mmx
#define SET_RND MOVQ_WTWO
#define PAVGBP(a, b, c, d, e, f) PAVGBP_MMX(a, b, c, d, e, f)
#define PAVGB(a, b, c, e) PAVGB_MMX(a, b, c, e)
#include "hpeldsp_rnd_template.c"
#undef DEF
#undef SET_RND
#undef PAVGBP
#undef PAVGB
#undef OP_AVG
#endif /* HAVE_INLINE_ASM */
#if HAVE_YASM
#define ff_put_pixels8_mmx ff_put_pixels8_mmxext
/***********************************/
/* 3Dnow specific */
#define DEF(x) x ## _3dnow
#include "hpeldsp_avg_template.c"
#undef DEF
/***********************************/
/* MMXEXT specific */
#define DEF(x) x ## _mmxext
#include "hpeldsp_avg_template.c"
#undef DEF
#endif /* HAVE_YASM */
#if HAVE_INLINE_ASM
#define put_no_rnd_pixels16_mmx put_pixels16_mmx
#define put_no_rnd_pixels8_mmx put_pixels8_mmx
#define put_pixels16_mmxext put_pixels16_mmx
#define put_pixels8_mmxext put_pixels8_mmx
#define put_pixels4_mmxext put_pixels4_mmx
#define put_no_rnd_pixels16_mmxext put_no_rnd_pixels16_mmx
#define put_no_rnd_pixels8_mmxext put_no_rnd_pixels8_mmx
static void put_pixels8_mmx(uint8_t *block, const uint8_t *pixels,
ptrdiff_t line_size, int h)
{
__asm__ volatile (
"lea (%3, %3), %%"REG_a" \n\t"
".p2align 3 \n\t"
"1: \n\t"
"movq (%1 ), %%mm0 \n\t"
"movq (%1, %3), %%mm1 \n\t"
"movq %%mm0, (%2) \n\t"
"movq %%mm1, (%2, %3) \n\t"
"add %%"REG_a", %1 \n\t"
"add %%"REG_a", %2 \n\t"
"movq (%1 ), %%mm0 \n\t"
"movq (%1, %3), %%mm1 \n\t"
"movq %%mm0, (%2) \n\t"
"movq %%mm1, (%2, %3) \n\t"
"add %%"REG_a", %1 \n\t"
"add %%"REG_a", %2 \n\t"
"subl $4, %0 \n\t"
"jnz 1b \n\t"
: "+g"(h), "+r"(pixels), "+r"(block)
: "r"((x86_reg)line_size)
: "%"REG_a, "memory"
);
}
static void put_pixels16_mmx(uint8_t *block, const uint8_t *pixels,
ptrdiff_t line_size, int h)
{
__asm__ volatile (
"lea (%3, %3), %%"REG_a" \n\t"
".p2align 3 \n\t"
"1: \n\t"
"movq (%1 ), %%mm0 \n\t"
"movq 8(%1 ), %%mm4 \n\t"
"movq (%1, %3), %%mm1 \n\t"
"movq 8(%1, %3), %%mm5 \n\t"
"movq %%mm0, (%2) \n\t"
"movq %%mm4, 8(%2) \n\t"
"movq %%mm1, (%2, %3) \n\t"
"movq %%mm5, 8(%2, %3) \n\t"
"add %%"REG_a", %1 \n\t"
"add %%"REG_a", %2 \n\t"
"movq (%1 ), %%mm0 \n\t"
"movq 8(%1 ), %%mm4 \n\t"
"movq (%1, %3), %%mm1 \n\t"
"movq 8(%1, %3), %%mm5 \n\t"
"movq %%mm0, (%2) \n\t"
"movq %%mm4, 8(%2) \n\t"
"movq %%mm1, (%2, %3) \n\t"
"movq %%mm5, 8(%2, %3) \n\t"
"add %%"REG_a", %1 \n\t"
"add %%"REG_a", %2 \n\t"
"subl $4, %0 \n\t"
"jnz 1b \n\t"
: "+g"(h), "+r"(pixels), "+r"(block)
: "r"((x86_reg)line_size)
: "%"REG_a, "memory"
);
}
#endif /* HAVE_INLINE_ASM */
void ff_put_pixels16_sse2(uint8_t *block, const uint8_t *pixels,
ptrdiff_t line_size, int h);
void ff_avg_pixels16_sse2(uint8_t *block, const uint8_t *pixels,
ptrdiff_t line_size, int h);
#define SET_HPEL_FUNCS(PFX, IDX, SIZE, CPU) \
do { \
c->PFX ## _pixels_tab IDX [0] = PFX ## _pixels ## SIZE ## _ ## CPU; \
c->PFX ## _pixels_tab IDX [1] = PFX ## _pixels ## SIZE ## _x2_ ## CPU; \
c->PFX ## _pixels_tab IDX [2] = PFX ## _pixels ## SIZE ## _y2_ ## CPU; \
c->PFX ## _pixels_tab IDX [3] = PFX ## _pixels ## SIZE ## _xy2_ ## CPU; \
} while (0)
static void hpeldsp_init_mmx(HpelDSPContext *c, int flags, int mm_flags)
{
#if HAVE_INLINE_ASM
SET_HPEL_FUNCS(put, [0], 16, mmx);
SET_HPEL_FUNCS(put_no_rnd, [0], 16, mmx);
SET_HPEL_FUNCS(avg, [0], 16, mmx);
SET_HPEL_FUNCS(avg_no_rnd, , 16, mmx);
SET_HPEL_FUNCS(put, [1], 8, mmx);
SET_HPEL_FUNCS(put_no_rnd, [1], 8, mmx);
SET_HPEL_FUNCS(avg, [1], 8, mmx);
#endif /* HAVE_INLINE_ASM */
}
static void hpeldsp_init_mmxext(HpelDSPContext *c, int flags, int mm_flags)
{
#if HAVE_YASM
c->put_pixels_tab[0][1] = ff_put_pixels16_x2_mmxext;
c->put_pixels_tab[0][2] = ff_put_pixels16_y2_mmxext;
c->avg_pixels_tab[0][0] = ff_avg_pixels16_mmxext;
c->avg_pixels_tab[0][1] = ff_avg_pixels16_x2_mmxext;
c->avg_pixels_tab[0][2] = ff_avg_pixels16_y2_mmxext;
c->put_pixels_tab[1][1] = ff_put_pixels8_x2_mmxext;
c->put_pixels_tab[1][2] = ff_put_pixels8_y2_mmxext;
c->avg_pixels_tab[1][0] = ff_avg_pixels8_mmxext;
c->avg_pixels_tab[1][1] = ff_avg_pixels8_x2_mmxext;
c->avg_pixels_tab[1][2] = ff_avg_pixels8_y2_mmxext;
if (!(flags & CODEC_FLAG_BITEXACT)) {
c->put_no_rnd_pixels_tab[0][1] = ff_put_no_rnd_pixels16_x2_mmxext;
c->put_no_rnd_pixels_tab[0][2] = ff_put_no_rnd_pixels16_y2_mmxext;
c->put_no_rnd_pixels_tab[1][1] = ff_put_no_rnd_pixels8_x2_mmxext;
c->put_no_rnd_pixels_tab[1][2] = ff_put_no_rnd_pixels8_y2_mmxext;
c->avg_pixels_tab[0][3] = ff_avg_pixels16_xy2_mmxext;
c->avg_pixels_tab[1][3] = ff_avg_pixels8_xy2_mmxext;
}
#endif /* HAVE_YASM */
#if HAVE_MMXEXT_EXTERNAL
if (flags & CODEC_FLAG_BITEXACT && CONFIG_VP3_DECODER) {
c->put_no_rnd_pixels_tab[1][1] = ff_put_no_rnd_pixels8_x2_exact_mmxext;
c->put_no_rnd_pixels_tab[1][2] = ff_put_no_rnd_pixels8_y2_exact_mmxext;
}
#endif /* HAVE_MMXEXT_EXTERNAL */
}
static void hpeldsp_init_3dnow(HpelDSPContext *c, int flags, int mm_flags)
{
#if HAVE_YASM
c->put_pixels_tab[0][1] = ff_put_pixels16_x2_3dnow;
c->put_pixels_tab[0][2] = ff_put_pixels16_y2_3dnow;
c->avg_pixels_tab[0][0] = ff_avg_pixels16_3dnow;
c->avg_pixels_tab[0][1] = ff_avg_pixels16_x2_3dnow;
c->avg_pixels_tab[0][2] = ff_avg_pixels16_y2_3dnow;
c->put_pixels_tab[1][1] = ff_put_pixels8_x2_3dnow;
c->put_pixels_tab[1][2] = ff_put_pixels8_y2_3dnow;
c->avg_pixels_tab[1][0] = ff_avg_pixels8_3dnow;
c->avg_pixels_tab[1][1] = ff_avg_pixels8_x2_3dnow;
c->avg_pixels_tab[1][2] = ff_avg_pixels8_y2_3dnow;
if (!(flags & CODEC_FLAG_BITEXACT)){
c->put_no_rnd_pixels_tab[0][1] = ff_put_no_rnd_pixels16_x2_3dnow;
c->put_no_rnd_pixels_tab[0][2] = ff_put_no_rnd_pixels16_y2_3dnow;
c->put_no_rnd_pixels_tab[1][1] = ff_put_no_rnd_pixels8_x2_3dnow;
c->put_no_rnd_pixels_tab[1][2] = ff_put_no_rnd_pixels8_y2_3dnow;
c->avg_pixels_tab[0][3] = ff_avg_pixels16_xy2_3dnow;
c->avg_pixels_tab[1][3] = ff_avg_pixels8_xy2_3dnow;
}
if (flags & CODEC_FLAG_BITEXACT && CONFIG_VP3_DECODER) {
c->put_no_rnd_pixels_tab[1][1] = ff_put_no_rnd_pixels8_x2_exact_3dnow;
c->put_no_rnd_pixels_tab[1][2] = ff_put_no_rnd_pixels8_y2_exact_3dnow;
}
#endif /* HAVE_YASM */
}
static void hpeldsp_init_sse2(HpelDSPContext *c, int flags, int mm_flags)
{
#if HAVE_SSE2_EXTERNAL
if (!(mm_flags & AV_CPU_FLAG_SSE2SLOW)) {
// these functions are slower than mmx on AMD, but faster on Intel
c->put_pixels_tab[0][0] = ff_put_pixels16_sse2;
c->put_no_rnd_pixels_tab[0][0] = ff_put_pixels16_sse2;
c->avg_pixels_tab[0][0] = ff_avg_pixels16_sse2;
}
#endif /* HAVE_SSE2_EXTERNAL */
}
void ff_hpeldsp_init_x86(HpelDSPContext *c, int flags)
{
int mm_flags = av_get_cpu_flags();
if (mm_flags & AV_CPU_FLAG_MMX)
hpeldsp_init_mmx(c, flags, mm_flags);
if (mm_flags & AV_CPU_FLAG_MMXEXT)
hpeldsp_init_mmxext(c, flags, mm_flags);
if (mm_flags & AV_CPU_FLAG_3DNOW)
hpeldsp_init_3dnow(c, flags, mm_flags);
if (mm_flags & AV_CPU_FLAG_SSE2)
hpeldsp_init_sse2(c, flags, mm_flags);
}
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