tc.h

用于TM1300/PNX1300系列DSP（主要用于视频处理）的各种滤波器源码

/*
 * Copyright (c) 1995,1996,1997, 1998, 1999 by Philips Semiconductors.
 *
 * +------------------------------------------------------------------+
 * | This software is furnished under a license and may only be used  |
 * | and copied in accordance with the terms and conditions of  such  |
 * | a license and with the inclusion of this copyright notice. This  |
 * | software or any other copies of this software may not be provided|
 * | or otherwise made available to any other person.  The ownership  |
 * | and title of this software is not transferred.                   |
 * |                                                                  |
 * | The information in this software is subject  to change without   |
 * | any  prior notice and should not be construed as a commitment by |
 * | Philips Semiconductors.                                          |
 * |                                                                  |
 * | this code and information is provided "as is" without any        |
 * | warranty of any kind, either expressed or implied, including but |
 * | not limited to the implied warranties of merchantability and/or  |
 * | fitness for any particular purpose.                              |
 * +------------------------------------------------------------------+
 *
 *  Module name              : tc.h    1.1
 *
 *  Last update              : 12:40:03 - 99/03/26
 *
 *  Description              :
 *
 *  IDCT example program:
 *
 *
 */

#include "ops/custom_defs.h"
#define	MAXVAL	256
typedef struct { double v[MAXVAL]; int dim[2]; } VALU;
typedef union {
	int i;
	double d;
	VALU    v;	
	char	s[MAXVAL];
} YYSTYPE;

typedef struct {
	int	scale;
	int	width;
	int	randx;
	int	verbose;
	int	nblocks;
	int	range;
} STATEINFO;

#define	MAXSTATE	10

STATEINFO	*state;
STATEINFO	sstk[MAXSTATE];

YYSTYPE	yylval;
int	varno;

#define	MAXVAR	100
#define	max(a,b) ((a>b)?a:b)
#define	min(a,b) ((a<b)?a:b)

	/* parameters for ieee test */

#define	THR_PIXEL_PEAK_ERROR		1.0
#define	THR_PIXEL_MEAN_SQUARE_ERROR	0.06
#define	THR_OVERALL_MEAN_SQUARE_ERROR	0.02
#define	THR_PIXEL_ABS_MEAN_ERROR	0.015
#define	THR_OVERALL_ABS_MEAN_ERROR	0.0015

#define	O_FWD	 1
#define	O_DIM1D	 2
#define	O_8POINT 4
#define O_SEP	 8
#define O_4POINT 10


#define	failed_p_m_s	1 	/* a pixel m sq error is too large */
#define failed_o_m_s	2 	/* an over. m sq error is too large */
#define failed_p_m_e	4 	/* a pixel abs m  error is too large */
#define	failed_o_m_e	8 	/* an over. abs m error is too large */

#define iserr(x)	con[(exit_code&x)!=0]

double	fabs();
void dct(double, double, int, int) ;


#ifdef __LITTLE_ENDIAN__
#define LITTLE_ENDIAN  1
#else
#define LITTLE_ENDIAN  0
#endif