ffmpeg/libavcodec/dsputil.h

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2.4 KiB
C
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#ifndef DSPUTIL_H
#define DSPUTIL_H
#include "common.h"
#include <inttypes.h>
/* dct code */
typedef short DCTELEM;
void jpeg_fdct_ifast (DCTELEM *data);
void j_rev_dct (DCTELEM *data);
void fdct_mmx(DCTELEM *block);
void (*av_fdct)(DCTELEM *block);
/* pixel operations */
#define MAX_NEG_CROP 384
/* temporary */
extern UINT32 squareTbl[512];
void dsputil_init(void);
/* pixel ops : interface with DCT */
extern void (*get_pixels)(DCTELEM *block, const UINT8 *pixels, int line_size);
extern void (*put_pixels_clamped)(const DCTELEM *block, UINT8 *pixels, int line_size);
extern void (*add_pixels_clamped)(const DCTELEM *block, UINT8 *pixels, int line_size);
void get_pixels_c(DCTELEM *block, const UINT8 *pixels, int line_size);
void put_pixels_clamped_c(const DCTELEM *block, UINT8 *pixels, int line_size);
void add_pixels_clamped_c(const DCTELEM *block, UINT8 *pixels, int line_size);
/* add and put pixel (decoding) */
typedef void (*op_pixels_func)(UINT8 *block, const UINT8 *pixels, int line_size, int h);
extern op_pixels_func put_pixels_tab[4];
extern op_pixels_func avg_pixels_tab[4];
extern op_pixels_func put_no_rnd_pixels_tab[4];
extern op_pixels_func avg_no_rnd_pixels_tab[4];
/* sub pixel (encoding) */
extern void (*sub_pixels_tab[4])(DCTELEM *block, const UINT8 *pixels, int line_size, int h);
#define sub_pixels_2(block, pixels, line_size, dxy) \
sub_pixels_tab[dxy](block, pixels, line_size, 8)
/* motion estimation */
typedef int (*op_pixels_abs_func)(UINT8 *blk1, UINT8 *blk2, int line_size, int h);
extern op_pixels_abs_func pix_abs16x16;
extern op_pixels_abs_func pix_abs16x16_x2;
extern op_pixels_abs_func pix_abs16x16_y2;
extern op_pixels_abs_func pix_abs16x16_xy2;
int pix_abs16x16_c(UINT8 *blk1, UINT8 *blk2, int lx, int h);
int pix_abs16x16_x2_c(UINT8 *blk1, UINT8 *blk2, int lx, int h);
int pix_abs16x16_y2_c(UINT8 *blk1, UINT8 *blk2, int lx, int h);
int pix_abs16x16_xy2_c(UINT8 *blk1, UINT8 *blk2, int lx, int h);
#ifdef CONFIG_MMX
#define MM_MMX 0x0001 /* standard MMX */
#define MM_3DNOW 0x0004 /* AMD 3DNOW */
#define MM_MMXEXT 0x0002 /* SSE integer functions or AMD MMX ext */
#define MM_SSE 0x0008 /* SSE functions */
#define MM_SSE2 0x0010 /* PIV SSE2 functions */
extern int mm_flags;
int mm_support(void);
static inline void emms(void)
{
asm volatile ("emms;");
}
#define __align8 __attribute__ ((aligned (8)))
void dsputil_init_mmx(void);
#else
#define __align8
#endif
#endif