sup.h

代码有点长,需细心阅读,仅供影音视听类产品的开发人员参考

#ifndef __SUP_H
#define	__SUP_H
#if 0
typedef struct
{
	BYTE    Y, CB, CR, BL;
}
t_CLUT;

typedef struct
{
	BYTE    CB, CR, Y, BL;
}
t_CLUTv1;

typedef struct
{
	BYTE    CB, CR, Y, BL;
}
t_CLUTv2;


//
// t_SUP_HDR_svcd
//
// SVCD/CVD format
//
typedef struct
{
	UINT16  TL_X;									// 0
	UINT16  TL_Y;									// 2
	UINT16  BR_X;									// 4
	UINT16  BR_Y;									// 6
	t_CLUTv1 CLUT_PR[4];					// 8-1f
	UINT16  HL0_TL_X;							// 20
	UINT16  HL0_TL_Y;							// 22
	UINT16  HL0_BR_X;							// 24
	UINT16  HL0_BR_Y;							// 26
	t_CLUTv1 CLUT_HL0[4];					// 28-3f
	UINT16  HL1_TL_X;							// 40
	UINT16  HL1_TL_Y;							// 42
	UINT16  HL1_BR_X;							// 44
	UINT16  HL1_BR_Y;							// 46
	t_CLUTv1 CLUT_HL1[4];					// 48-5f

	UINT16  BLINK;								// 60-61
	UINT16  TLINK;								// 62-63
}
t_SUP_HDR_svcd;


//
// t_SUP_HDR_dvd
//
// DVD format (different with SVCD/CVD)
//
typedef struct
{
	// sub-picture decoder hardware table (dvd-mode)
	UINT16  TL_X;									// 0
	UINT16  TL_Y;									// 2
	UINT16  BR_X;									// 4
	UINT16  BR_Y;									// 6
	UINT16  PR_PALETTE;						// 8 EM2[15:12] EM1[11:8] PN[7:4] BG[3:0]
	UINT16  PR_CONTRAST;					// a EM2[15:12] EM1[11:8] PN[7:4] BG[3:0]
	t_CLUTv2 CLUT[16];						// c - 4d
	UINT16  BLINK;								// 4c
	UINT16  TLINK;								// 4e
}
t_SUP_HDR_dvd;


typedef struct
{
	union
	{
		t_SUP_HDR_svcd svcd;
		t_SUP_HDR_dvd dvd;
	}
	reg;

	// sub-picture decoder internal variables.
	UINT32  pts;									// 50 SPH reference PTS
	UINT16  spu_sa;								// 54 SPH start address (not header)
	UINT16  dcsqt_sa;							// 56 DCSQ start address
	BYTE    SUP_STATE;						// 58
}
t_SUP_REGION;



//
// sub-picture decoder state
//
#define	SPD_HEADER_NULL		0xffff

//
// DCCMD
//
#define	DCCMD_FSTA_DSP		0x00
#define	DCCMD_STA_DSP		0x01
#define	DCCMD_STP_DSP		0x02
#define	DCCMD_SET_COLOR		0x03
#define	DCCMD_SET_CONTR		0x04
#define	DCCMD_SET_DAREA		0x05
#define	DCCMD_SET_DSPXA		0x06
#define	DCCMD_CHG_COLCON	0x07
#define	DCCMD_CMD_END		0xFF


//
// SUPCMD
// svcd style command
//
#define	SUPCMD_TIME		0x00
#define	SUPCMD_REGION		0x01
#define	SUPCMD_SET_COLOR	0x02
#define SUPCMD_SET_BLEND	0x03
#define SUPCMD_FIELD_PTR	0x04
#define SUPCMD_HL_REGION	0x05



//
// SPD functions
//
void    sup_init();

/*
**
*/
int     do_sup_header(void);
int     do_sup_body(void);


#if 0
/*
**      WHITE   0xeb    0x80    0x80
**      YELLOW  0xa2    0x8e    0x2c
**      CYAN    0x83    0x2c    0x9c
**      GREEN   0x70    0x3a    0x48
**      MAGENTA 0x54    0xc6    0xb8
**      RED     0x41    0xd4    0x64
**      BLUE    0x23    0x72    0xd4
**      BLACK   0x10    0x80    0x80
*/
const t_CLUTv2 clut_def[16] = {
	// cb-cr-y-xx
	{0x80, 0x80, 0x10, 0x00},
	{0x80, 0x80, 0xeb, 0x00},
	{0x2c, 0x8e, 0xa2, 0x00},
	{0x9c, 0x2c, 0x83, 0x00},
	{0x48, 0x3a, 0x70, 0x00},
	{0xb8, 0xc6, 0x54, 0x00},
	{0x64, 0xd4, 0x41, 0x00},
	{0xd4, 0x72, 0x23, 0x00},
	{0x80, 0x80, 0x40, 0x00},
	{0x80, 0x80, 0x6b, 0x00},
	{0x2c, 0x8e, 0x52, 0x00},
	{0x9c, 0x2c, 0x43, 0x00},
	{0x48, 0x3a, 0x38, 0x00},
	{0xb8, 0xc6, 0x2a, 0x00},
	{0x64, 0xd4, 0x21, 0x00},
	{0xd4, 0x72, 0x13, 0x00},
}
       ;
#endif
#endif
#endif/*__SUP_H*/