resample_mmx.h File Reference

#include "libavutil/x86/asm.h"
#include "libavutil/cpu.h"
#include "libswresample/swresample_internal.h"

Go to the source code of this file.

Macros
#define	COMMON_CORE_INT16_MMX2
#define	COMMON_CORE_INT16_SSSE3

Functions
int	swri_resample_int16_mmx2 (struct ResampleContext *c, int16_t *dst, const int16_t *src, int *consumed, int src_size, int dst_size, int update_ctx)
int	swri_resample_int16_ssse3 (struct ResampleContext *c, int16_t *dst, const int16_t *src, int *consumed, int src_size, int dst_size, int update_ctx)

Variables
const uint64_t	ff_resample_int16_rounder [2] = { 0x0000000000004000ULL, 0x0000000000000000ULL}

Macro Definition Documentation

#define COMMON_CORE_INT16_MMX2

Value:

x86_reg len= -2*c->filter_length;\
__asm__ volatile(\
    "movq "MANGLE(ff_resample_int16_rounder)", %%mm0 \n\t"\
    "1:                         \n\t"\
    "movq    (%1, %0), %%mm1    \n\t"\
    "pmaddwd (%2, %0), %%mm1    \n\t"\
    "paddd  %%mm1, %%mm0        \n\t"\
    "add       $8, %0           \n\t"\
    " js 1b                     \n\t"\
    "pshufw $0x0E, %%mm0, %%mm1 \n\t"\
    "paddd %%mm1, %%mm0         \n\t"\
    "psrad    $15, %%mm0        \n\t"\
    "packssdw %%mm0, %%mm0      \n\t"\
    "movd %%mm0, (%3)           \n\t"\
    : "+r" (len)\
    : "r" (((uint8_t*)(src+sample_index))-len),\
      "r" (((uint8_t*)filter)-len),\
      "r" (dst+dst_index)\
);

Definition at line 30 of file resample_mmx.h.

#define COMMON_CORE_INT16_SSSE3

Value:

x86_reg len= -2*c->filter_length;\
__asm__ volatile(\
    "movdqa "MANGLE(ff_resample_int16_rounder)", %%xmm0 \n\t"\
    "1:                           \n\t"\
    "movdqu  (%1, %0), %%xmm1     \n\t"\
    "pmaddwd (%2, %0), %%xmm1     \n\t"\
    "paddd  %%xmm1, %%xmm0        \n\t"\
    "add       $16, %0            \n\t"\
    " js 1b                       \n\t"\
    "phaddd %%xmm0, %%xmm0        \n\t"\
    "phaddd %%xmm0, %%xmm0        \n\t"\
    "psrad    $15, %%xmm0         \n\t"\
    "packssdw %%xmm0, %%xmm0      \n\t"\
    "movd %%xmm0, (%3)            \n\t"\
    : "+r" (len)\
    : "r" (((uint8_t*)(src+sample_index))-len),\
      "r" (((uint8_t*)filter)-len),\
      "r" (dst+dst_index)\
);

Definition at line 51 of file resample_mmx.h.

Function Documentation

int swri_resample_int16_mmx2	(	struct ResampleContext *	c,
		int16_t *	dst,
		const int16_t *	src,
		int *	consumed,
		int	src_size,
		int	dst_size,
		int	update_ctx
	)

Referenced by multiple_resample().

int swri_resample_int16_ssse3	(	struct ResampleContext *	c,
		int16_t *	dst,
		const int16_t *	src,
		int *	consumed,
		int	src_size,
		int	dst_size,
		int	update_ctx
	)

Referenced by multiple_resample().

Variable Documentation

const uint64_t ff_resample_int16_rounder[2] = { 0x0000000000004000ULL, 0x0000000000000000ULL}

Definition at line 28 of file resample_mmx.h.