native.h

在ｅｃｏｓ 下mingui 的移植开发

// $Id: native.h,v 1.2 2000/11/27 06:22:49 ymwei Exp $
// native.h: the head file of native Low Level Graphics Engine.

#ifndef GUI_GAL_NATIVE_H
    #define GUI_GAL_NATIVE_H

#ifdef __cplusplus
extern "C" {
#endif  /* __cplusplus */

#include "common.h"
#include "minigui.h"
#include "gal.h"
#include "ial.h"

//typedef struct _screendevice *PSD;
/*
 * Interface to Screen Device Driver
 * This structure is also allocated for memory (offscreen) drawing and blitting.
 */
/* This structure is used to pass parameters into the low
 * level device driver functions.
 */

typedef struct _screendevice {
	int	xres;		/* X screen res (real) */
	int	yres;		/* Y screen res (real) */
	int	xvirtres;	/* X drawing res (will be flipped in portrait mode) */
	int	yvirtres;	/* Y drawing res (will be flipped in portrait mode) */
	int	planes;		/* # planes*/
	int	bpp;		/* # bits per pixel*/
	int	linelen;	/* line length in bytes for bpp 1,2,4,8*/
				/* line length in pixels for bpp 16, 24, 32*/
	int	size;		/* size of memory allocated*/

	gal_pixel gr_foreground;      /* current foreground color */
	gal_pixel gr_background;      /* current background color */
	int 	gr_mode;

	int	doclip;
	int	clipminx;		/* minimum x value of cache rectangle */
	int	clipminy;		/* minimum y value of cache rectangle */
	int	clipmaxx;		/* maximum x value of cache rectangle */
	int	clipmaxy;		/* maximum y value of cache rectangle */
	long	ncolors;	/* # screen colors*/
	int	pixtype;	/* format of pixel value*/
	int	flags;		/* device flags*/
	void *	addr;		/* address of memory allocated (memdc or fb)*/

	PSD	(*Open)(PSD psd);
	void	(*Close)(PSD psd);
	void	(*SetPalette)(PSD psd,int first,int count,gal_color *cmap);
	void	(*GetPalette)(PSD psd,int first,int count,gal_color *cmap);
	PSD	(*AllocateMemGC)(PSD psd);
	BOOL	(*MapMemGC)(PSD mempsd,int w,int h,int planes,int bpp, int linelen,int size,void *addr);
	void	(*FreeMemGC)(PSD mempsd);
	BOOL	(*ClipPoint)(PSD psd,int x,int y);
	void	(*FillRect)(PSD psd,int x,int y,int w,int h,gal_pixel c);
	
//==================================================================================//
	void 	 (*DrawPixel)(PSD psd, int x, int y, gal_pixel c);
	gal_pixel (*ReadPixel)(PSD psd, int x, int y);
	void 	(*DrawHLine)(PSD psd, int x, int y, int w, gal_pixel c);
	void	(*PutHLine) (PSD psd, int x, int y, int w, void* buf);
	void	(*GetHLine) (PSD psd, int x, int y, int w, void* buf);
	void 	(*DrawVLine)(PSD psd, int x, int y, int w, gal_pixel c);
	void	(*PutVLine) (PSD psd, int x, int y, int w, void* buf);
	void	(*GetVLine) (PSD psd, int x, int y, int w, void* buf);
	void (*Blit)(PSD dstpsd, int dstx, int dsty, int w, int h, PSD srcpsd, int srcx, int srcy);
	void	(*PutBox)( PSD psd, int x, int y, int w, int h, void* buf );
	void	(*GetBox)( PSD psd, int x, int y, int w, int h, void* buf );
	void	(*PutBoxMask)( PSD psd, int x, int y, int w, int h, void *buf);
	void 	(*CopyBox)(PSD psd,int x1, int y1, int w, int h, int x2, int y2);
//===================================================================================//
	
} SCREENDEVICE;


extern SCREENDEVICE	scrdev;	

BOOL    InitNative(GFX* gfx);
void    TermNative(GFX* gfx);

/* genfunc.c*/
void native_gen_initmemgc(PSD mempsd,int w,int h,int planes,int bpp,int linelen, int size,void *addr);
PSD native_gen_allocatememgc(PSD psd);
void native_gen_freememgc(PSD mempsd);
void native_gen_fillrect(PSD psd,int x, int y, int w, int h, gal_pixel c);
int native_gen_clippoint(PSD psd, int x ,int y);
int native_gen_cliphline(PSD psd,int * px,int * py, int * pw);
int native_gen_clipvline(PSD psd,int * px,int * py, int *ph);
int native_gen_clipline (PSD psd,int * px1,int * py1, int * px2,int *py2);
int cs_clipline(PSD psd,int *_x0, int *_y0, int *_x1, int *_y1,
		       int *clip_first, int *clip_last);
int native_gen_clipbox(PSD psd,int * px,int * py, int * pw,int *ph);
int native_gen_calcmemgcalloc(PSD psd, unsigned int width, unsigned int height, int planes, int bpp, int *psize, int *plinelen);
void native_gen_line(PSD psd, int x1, int y1, int x2, int y2, BOOL bDrawLastPoint);
void native_gen_rect(PSD psd , int l, int t, int r, int b);
void generate_palette(gal_color *pal, int num);
void native_gen_circle(PSD psd, int sx, int sy, int r, int c);
int native_gen_scalebox (PSD psd, int w1, int h1, void *_dp1, int w2, int h2, void *_dp2);
/* end of genfunc.c*/

/*vtswitch*/
/* signals for VT switching */
#define SIGRELVT        SIGUSR1
#define SIGACQVT        SIGUSR2
extern int	switching_blocked;
int init_vtswitch(void);
int done_vtswitch(void);
int vtswitch_try(int vt);
/* end of vtswitch*/

/* Drawing modes*/
#define	MODE_SET	0	/* draw pixels as given (default) */
#define	MODE_XOR	1	/* draw pixels using XOR */
#define	MODE_OR		2	/* draw pixels using OR (notimp)*/
#define	MODE_AND	3	/* draw pixels using AND (notimp)*/
#define MODE_MAX	3

/* Operations for the Blitter/Area functions */
#define PSDOP_COPY	0
#define PSDOP_COPYALL	1
#define PSDOP_COPYTRANS 2
#define PSDOP_ALPHAMAP	3
#define PSDOP_ALPHACOL	4
#define PSDOP_PIXMAP_COPYALL	5

/* 
 * Pixel formats
 * Note the two pseudo pixel formats are never returned by display drivers,
 * but rather used as a data structure type in GrArea.  The other
 * types are both returned by display drivers and used as pixel packing
 * specifiers.
 */
#define PF_RGB	   0	/* pseudo, convert from packed 32 bit RGB*/
#define PF_gal_pixel	   1	/* pseudo, no convert from packed gal_pixel*/
#define PF_PALETTE	   2	/* pixel is packed 8 bits 1, 4 or 8 pal index*/
#define PF_TRUECOLOR0888 3	/* pixel is packed 32 bits 8/8/8 truecolor*/
#define PF_TRUECOLOR888  4	/* pixel is packed 24 bits 8/8/8 truecolor*/
#define PF_TRUECOLOR565  5	/* pixel is packed 16 bits 5/6/5 truecolor*/
#define PF_TRUECOLOR332  6	/* pixel is packed 8 bits 3/3/2 truecolor*/

/* Truecolor color conversion and extraction macros*/
/*
 * Conversion from RGB to gal_pixel
 */
/* create 24 bit 8/8/8 format pixel (0x00RRGGBB) from RGB triplet*/
#define RGB2PIXEL888(r,g,b)	\
	(((r) << 16) | ((g) << 8) | (b))

/* create 16 bit 5/6/5 format pixel from RGB triplet */
#define RGB2PIXEL565(r,g,b)	\
	((((r) & 0xf8) << 8) | (((g) & 0xfc) << 3) | (((b) & 0xf8) >> 3))

/* create 15 bit 5/5/5 format pixel from RGB triplet */
#define RGB2PIXEL555(r,g,b)	\
	((((r) & 0xf8) << 7) | (((g) & 0xf8) << 2) | (((b) & 0xf8) >> 3))

/* create 8 bit 3/3/2 format pixel from RGB triplet*/
#define RGB2PIXEL332(r,g,b)	\
	(((r) & 0xe0) | (((g) & 0xe0) >> 3) | (((b) & 0xc0) >> 6))

/*
 * Conversion from COLORVAL to gal_pixel
 */
/* create 24 bit 8/8/8 format pixel from RGB colorval (0x00BBGGRR)*/
#define COLOR2PIXEL888(c)	\
	((((c) & 0xff) << 16) | ((c) & 0xff00) | (((c) & 0xff0000) >> 16))

/* create 16 bit 5/6/5 format pixel from RGB colorval (0x00BBGGRR)*/
#define COLOR2PIXEL565(c)	\
	((((c) & 0xf8) << 8) | (((c) & 0xfc00) >> 5) | (((c) & 0xf80000) >> 19))

/* create 15 bit 5/5/5 format pixel from RGB colorval (0x00BBGGRR)*/
#define COLOR2PIXEL555(c)	\
	((((c) & 0xf8) << 7) | (((c) & 0xf800) >> 6) | (((c) & 0xf80000) >> 19))

/* create 8 bit 3/3/2 format pixel from RGB colorval (0x00BBGGRR)*/
#define COLOR2PIXEL332(c)	\
	(((c) & 0xe0) | (((c) & 0xe000) >> 11) | (((c) & 0xc00000) >> 22))

/*
 * Conversion from gal_pixel to red, green or blue components
 */
/* return 8/8/8 bit r, g or b component of 24 bit gal_pixel*/
#define PIXEL888RED(gal_pixel)		(((gal_pixel) >> 16) & 0xff)
#define PIXEL888GREEN(gal_pixel)		(((gal_pixel) >> 8) & 0xff)
#define PIXEL888BLUE(gal_pixel)		((gal_pixel) & 0xff)

/* return 5/6/5 bit r, g or b component of 16 bit gal_pixel*/
#define PIXEL565RED(gal_pixel)		(((gal_pixel) >> 11) & 0x1f)
#define PIXEL565GREEN(gal_pixel)		(((gal_pixel) >> 5) & 0x3f)
#define PIXEL565BLUE(gal_pixel)		((gal_pixel) & 0x1f)

/* return 5/5/5 bit r, g or b component of 16 bit gal_pixel*/
#define PIXEL555RED(gal_pixel)		(((gal_pixel) >> 10) & 0x1f)
#define PIXEL555GREEN(gal_pixel)		(((gal_pixel) >> 5) & 0x1f)
#define PIXEL555BLUE(gal_pixel)		((gal_pixel) & 0x1f)

/* return 3/3/2 bit r, g or b component of 8 bit gal_pixel*/
#define PIXEL332RED(gal_pixel)		(((gal_pixel) >> 5) & 0x07)
#define PIXEL332GREEN(gal_pixel)		(((gal_pixel) >> 2) & 0x07)
#define PIXEL332BLUE(gal_pixel)		((gal_pixel) & 0x03)

/* PSD flags*/
#define	PSF_SCREEN		0x0001	/* screen device*/
#define PSF_MEMORY		0x0002	/* memory device*/
#define PSF_HAVEBLIT		0x0004	/* have bitblit*/
#define PSF_PORTRAIT		0x0008	/* in portrait mode*/
#define PSF_HAVEOP_COPY		0x0010	/* psd->DrawArea can do area copy*/
#define PSF_ADDRMALLOC		0x0020	/* psd->addr was malloc'd*/
#define PSF_ADDRSHAREDMEM	0x0040	/* psd->addr is shared memory*/

#define CLIP_VISIBLE 	1
#define CLIP_INVISIBLE	0
#define CLIP_PARTIAL	-1

#ifdef __cplusplus
}
#endif  /* __cplusplus */

#endif  /* GUI_GAL_NATIVE_H */