global.h

在ccs开发环境下实现的基于dsp的图像二维dct变换和压缩,完整可实现的工程文件, 源文件算法清晰,良好的实现效果

#ifndef _GLOBAL_
#define _GLOBAL_

#ifndef CHIP_6416
#define CHIP_6416	1
#endif

#include <stdio.h>
#include <stdlib.h>


#define BYTE	unsigned char
#define int8	char
#define int16	short
#define int32	int
#define BOOL	int16

#ifndef UINT32
#define UINT32	unsigned int
#endif

#ifndef TRUE
#define TRUE	1
#define FALSE	0
#endif

#ifndef INT_MAX
#define INT_MAX		2147483647
#endif

//For choosing different algorithms, spinous, 2005-01-29
#define DCT_PROCESS
//#define HISTOGRAM
//#define NOISE
//#define FILTER

#define SQCIF_LINES	96
#define SQCIF_PELS	128
#define CIF_LINES	288
#define CIF_PELS	352
#define QCIF_LINES	(CIF_LINES / 2)
#define QCIF_PELS	(CIF_PELS / 2)
#define SIF_LINES	192
#define SIF_PELS	256

//spinous, 2005-01-28
#define DATA_LINES	CIF_LINES
#define DATA_PELS	CIF_PELS

#define SF_SQCIF	1  // 001 
#define SF_QCIF		2  // 010 
#define SF_CIF		3  // 011 
#define SF_SIF		7  // 111 

#define MB_SECTION	6
#define MB_SIZE		16	// This should not be changed
#define MB_LENGTH	(MB_SIZE*MB_SIZE/4)

#define YUV_SIZE	(DATA_PELS * DATA_LINES * 3/2)
#define Y_SIZE     DATA_PELS * DATA_LINES
//Modified by WXW, 2004/03/23
#define UV_SIZE  DATA_PELS * DATA_LINES * 1/4

#define GOB_SIZE	(DATA_PELS * MB_SIZE * 3/2)


// Used in MB of codec
extern int16 m_iBlock[MB_LENGTH*(MB_SECTION+1)];	// MB_SECTION + 1 is for idct use, look at idct_8x8.asm for full


// Used for DMA of codec
extern BYTE m_pGobY[GOB_SIZE];					// One Gob of Original Data
extern BYTE m_pGobY_DCT[GOB_SIZE];					// One Gob of DCT Data
extern BYTE *m_pGobCr, *m_pGobCb;

extern int CoefArray[16];//={1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1};//{a[0][0],a[0][1],a[0][2]...a[3][2],a[3][3]}


#endif