ref: a141f4c53a32d8227f9a490a8e4f7d87445c47d1
dir: /sys/src/9/omap/screen.h/
typedef struct Cursor Cursor;
typedef struct Cursorinfo Cursorinfo;
typedef struct OScreen OScreen;
typedef struct Omap3fb Omap3fb;
typedef struct Settings Settings;
struct Cursorinfo
{
Cursor;
Lock;
};
extern Cursor arrow;
extern Cursorinfo cursor;
/* devmouse.c */
extern void mousetrack(int, int, int, int);
extern void absmousetrack(int, int, int, int);
extern Point mousexy(void);
extern void mouseaccelerate(int);
extern void mouseresize(void);
extern void mouseredraw(void);
/* screen.c */
extern uchar* attachscreen(Rectangle*, ulong*, int*, int*, int*);
extern void flushmemscreen(Rectangle);
extern void cursoron(void);
extern void cursoroff(void);
extern void setcursor(Cursor*);
extern int screensize(int, int, int, ulong);
extern int screenaperture(int, int);
extern Rectangle physgscreenr; /* actual monitor size */
extern void blankscreen(int);
extern void swcursorinit(void);
extern void swcursorhide(void);
extern void swcursoravoid(Rectangle);
extern void swcursorunhide(void);
/* devdraw.c */
extern void deletescreenimage(void);
extern void resetscreenimage(void);
extern int drawhasclients(void);
extern ulong blanktime;
extern void setscreenimageclipr(Rectangle);
extern void drawflush(void);
extern int drawidletime(void);
extern QLock drawlock;
#define ishwimage(i) 0 /* for ../port/devdraw.c */
/* swcursor.c */
void swcursorhide(void);
void swcursoravoid(Rectangle);
void swcursordraw(Point);
void swcursorload(Cursor *);
void swcursorinit(void);
/* for communication between devdss.c and screen.c */
enum {
/* maxima */
Wid = 1280,
Ht = 1024,
Depth = 16, /* bits per pixel */
Pcolours = 256, /* Palette */
Pred = 0,
Pgreen = 1,
Pblue = 2,
Pblack = 0x00,
Pwhite = 0xFF,
/* settings indices */
Res800x600 = 0,
Res1024x768,
Res1280x1024,
Res1400x1050,
};
struct Settings {
uint wid; /* width in pixels */
uint ht; /* height in pixels */
uint freq; /* refresh frequency; only printed */
uint chan; /* draw chan */
/* shouldn't be needed? */
uint pixelclock;
/* horizontal timing */
uint hbp; /* back porch: pixel clocks before scan line */
uint hfp; /* front porch: pixel clocks after scan line */
uint hsw; /* sync pulse width: more hfp */
/* vertical timing */
uint vbp; /* back porch: line clocks before frame */
uint vfp; /* front porch: line clocks after frame */
uint vsw; /* sync pulse width: more vfp */
};
struct OScreen {
Cursor;
Settings *settings;
int open;
};
struct Omap3fb { /* frame buffer for 24-bit active color */
// short palette[256];
/* pixel data, even; base type's width must match Depth */
ushort pixel[Wid*Ht];
};