display.h

一个两碟控制的VCD的代码,两碟之间的转动及连续播放,已大量生产的CODE.

/* SCCSID @(#)display.h	1.54 3/26/98 */

#ifndef __DISPLAY_H__
#define __DISPLAY_H__

#include "common.h"

#ifdef MPEG1
GBLDEF(int DISP_START,  19952);
#ifdef SVCD
#define DISP_END	210800
#define DISP_MODES	5
#else
#if (defined(ECHO) || defined(BF43))
GBLDEF(int DISP_END,    124496);
#else
GBLDEF(int DISP_END,    125852);
#endif
#define DISP_MODES	4
#endif /* end of #ifdef SVCD */
#else	/* MPEG 2 */
#define DISP_START	151552
#define DISP_END	773632
#endif	/* MPEG 2 */

#define 	COLOR_WHITE	0
#define		COLOR_YELLOW	1
#define		COLOR_CYAN	2
#define		COLOR_GREEN	3
#define		COLOR_MAGENTA	4
#define		COLOR_RED	5
#define		COLOR_BLUE	6
#define		COLOR_BLACK	7

#define		FILL_I		0
#define		FILL_P		1
#define		FILL_B		2
#define		FILL_E2		3

#define		NORMAL_PAINT	0
#define		FANCY_PAINT	1

#ifdef	VMASTER
/* 3208/3210 is driving VSYNC/HSYNC, there is nothing to set. */
#ifdef CUST3
#ifndef S215
#define	SET_ENCODER_NTSC	SET_AUX4
#define	SET_ENCODER_PAL		CLEAR_AUX4
#else
#define SET_ENCODER_NTSC
#define SET_ENCODER_PAL
#endif
#else
#ifdef CUST4
#define	SET_ENCODER_NTSC	CLEAR_AUX3
#define	SET_ENCODER_PAL		SET_AUX3
#else /* not CUST4 */
#define	SET_ENCODER_NTSC
#define	SET_ENCODER_PAL
#endif /*CUST4*/
#endif

#else

#ifdef DSC
/* ES3207 A/V encoder */
#define	SET_ENCODER_NTSC	DSC_set_TV(TV_NTSC)
#define	SET_ENCODER_PAL		DSC_set_TV(TV_PAL)
#else

/* 3208/3210 is the video slave, so we need to info the encoder */
#ifdef PLAYONLY

#ifdef	P1O
#define	SET_ENCODER_NTSC	SET_AUX5
#define	SET_ENCODER_PAL		CLEAR_AUX5
#else
#ifdef	P2O
#define	SET_ENCODER_NTSC	SET_AUX5
#define	SET_ENCODER_PAL		CLEAR_AUX5
#else
#ifdef	P3O
#define	SET_ENCODER_NTSC	SET_AUX4
#define	SET_ENCODER_PAL		CLEAR_AUX4
#else
#ifdef	P4O
#define	SET_ENCODER_NTSC	SET_AUX2
#define	SET_ENCODER_PAL		CLEAR_AUX2
#endif	/* P4O */
#endif	/* P3O */
#endif	/* P2O */
#endif	/* P1O */

#else

/* PLAY20 */
#ifdef	CUST3
#define SET_ENCODER_NTSC	SET_AUX5
#define SET_ENCODER_PAL		CLEAR_AUX5
#else
/* Turnkey default */
#define	SET_ENCODER_NTSC	SET_AUX4
#define	SET_ENCODER_PAL		CLEAR_AUX4
#endif	/* CUST3 */

#endif	/* PLAYONLY/PLAY20	*/
#endif	/* DSC (3207)		*/

#endif	/* VMASTER		*/

/*----- Display control structure ---------------------*/
typedef struct {
    int	startY;		/* Starting addresses in dwords */
    int	startU;
    int	startV;
    int zY, zUV;	/* Compression status */
    int wY, wUV;	/* Picture width in dwords, after compression */
    int height;		/* Picture height after scaling */
} DISP_Info;

#ifdef MPEG1
typedef  enum {
    I	=0,
    P,
    B,
    E2,
} DISP_Start_index;
#define H_B1FRAME B
#define H_E2FRAME E2
#endif

GBLDEF_0(int do_blank, 0);
GBLDEF_0(volatile int done_blank, 0);
GBLDEF_0(int mineomine, 0);
GBLDEF_0(int disp_mem_mode, 0);	/* Current display memory configuration */
GBLDEF_0(int disp_frame, 0);	/* Frame currently being displayed */

GBLDEF(int DISP_frame, 3);
GBLDEF_0(int DISP_count, 0);
GBLDEF(int DISP_limit, 2);
GBLDEF_0(int DISP_scn_height, 0);
GBLDEF_0(int DISP_field, 0);	/* The current displayed field. 0 or 1 */
GBLDEF(int DISP_field_detect, 2);
GBLDEF_0(int DISP_field_swap, 0);

GBLDEF_0(DISP_Info * DISP_info, (DISP_Info *) 0);

#ifndef BF43
extern int osd_adjust_vstart;
#endif

#ifdef CUST4 /* CUST4 has own filter settings */
GBLDEF(unsigned short * cust4_filter, 0);
GBLDEF(char DISP_load_cust4_filter, 0);
#endif

void DISP_interrupt_service(void);
void DISP_init(void);
void DISP_change_resolution(int, int);
int  DISP_set_limit(void);
void DISP_mem_config(int);
void DISP_set_TV_mode(int mode); /* TV_PAL, TV_NTSC */
void DISP_change_TV(void);
void DISP_paint_screen(int, int, int);
void DISP_paint_dot(int x, int y, int color, int blend, int frame_num);
void DISP_draw_line(int x, int y, int dx, int color, int frame_num);
void DISP_set_filter(unsigned short *CoefY, unsigned short *CoefUV);

#endif /*  __DISPLAY_H__ */