libavcodec/dsputil.h

   1 #ifndef DSPUTIL_H
   2 #define DSPUTIL_H
   3
   4 #include "common.h"
   5 #include <inttypes.h>
   6
   7 /* dct code */
   8 typedef short DCTELEM;
   9
  10 void jpeg_fdct_ifast (DCTELEM *data);
  11
  12 void j_rev_dct (DCTELEM *data);
  13
  14 void fdct_mmx(DCTELEM *block);
  15
  16 void (*av_fdct)(DCTELEM *block);
  17
  18 /* pixel operations */
  19 #define MAX_NEG_CROP 384
  20
  21 /* temporary */
  22 extern UINT32 squareTbl[512];
  23
  24 void dsputil_init(void);
  25
  26 /* pixel ops : interface with DCT */
  27
  28 extern void (*get_pixels)(DCTELEM *block, const UINT8 *pixels, int line_size);
  29 extern void (*put_pixels_clamped)(const DCTELEM *block, UINT8 *pixels, int line_size);
  30 extern void (*add_pixels_clamped)(const DCTELEM *block, UINT8 *pixels, int line_size);
  31
  32 void get_pixels_c(DCTELEM *block, const UINT8 *pixels, int line_size);
  33 void put_pixels_clamped_c(const DCTELEM *block, UINT8 *pixels, int line_size);
  34 void add_pixels_clamped_c(const DCTELEM *block, UINT8 *pixels, int line_size);
  35
  36 /* add and put pixel (decoding) */
  37 typedef void (*op_pixels_func)(UINT8 *block, const UINT8 *pixels, int line_size, int h);
  38
  39 extern op_pixels_func put_pixels_tab[4];
  40 extern op_pixels_func avg_pixels_tab[4];
  41 extern op_pixels_func put_no_rnd_pixels_tab[4];
  42 extern op_pixels_func avg_no_rnd_pixels_tab[4];
  43
  44 /* sub pixel (encoding) */
  45 extern void (*sub_pixels_tab[4])(DCTELEM *block, const UINT8 *pixels, int line_size, int h);
  46
  47 #define sub_pixels_2(block, pixels, line_size, dxy) \
  48    sub_pixels_tab[dxy](block, pixels, line_size, 8)
  49
  50 /* motion estimation */
  51
  52 typedef int (*op_pixels_abs_func)(UINT8 *blk1, UINT8 *blk2, int line_size, int h);
  53
  54 extern op_pixels_abs_func pix_abs16x16;
  55 extern op_pixels_abs_func pix_abs16x16_x2;
  56 extern op_pixels_abs_func pix_abs16x16_y2;
  57 extern op_pixels_abs_func pix_abs16x16_xy2;
  58
  59 int pix_abs16x16_c(UINT8 *blk1, UINT8 *blk2, int lx, int h);
  60 int pix_abs16x16_x2_c(UINT8 *blk1, UINT8 *blk2, int lx, int h);
  61 int pix_abs16x16_y2_c(UINT8 *blk1, UINT8 *blk2, int lx, int h);
  62 int pix_abs16x16_xy2_c(UINT8 *blk1, UINT8 *blk2, int lx, int h);
  63
  64 #ifdef CONFIG_MMX
  65
  66 #define MM_MMX    0x0001 /* standard MMX */
  67 #define MM_3DNOW  0x0004 /* AMD 3DNOW */
  68 #define MM_MMXEXT 0x0002 /* SSE integer functions or AMD MMX ext */
  69 #define MM_SSE    0x0008 /* SSE functions */
  70 #define MM_SSE2   0x0010 /* PIV SSE2 functions */
  71
  72 extern int mm_flags;
  73
  74 int mm_support(void);
  75
  76 static inline void emms(void)
  77 {
  78         asm volatile ("emms;");
  79 }
  80
  81 #define __align8 __attribute__ ((aligned (8)))
  82
  83 void dsputil_init_mmx(void);
  84
  85 #else
  86
  87 #define __align8
  88
  89 #endif
  90
  91 #endif