ref: 220dfb87f561f73ec1d154e08511332a660d1119
dir: /sys/src/9/pc/screen.h/
/* devmouse.c */ typedef struct Cursor Cursor; extern Cursor cursor; extern void mousetrack(int, int, int, ulong); extern void absmousetrack(int, int, int, ulong); extern Point mousexy(void); extern void mouseaccelerate(int); extern int m3mouseputc(Queue*, int); extern int m5mouseputc(Queue*, int); extern int mouseputc(Queue*, int); /* * Generic VGA registers. */ enum { MiscW = 0x03C2, /* Miscellaneous Output (W) */ MiscR = 0x03CC, /* Miscellaneous Output (R) */ Status0 = 0x03C2, /* Input status 0 (R) */ Status1 = 0x03DA, /* Input Status 1 (R) */ FeatureR = 0x03CA, /* Feature Control (R) */ FeatureW = 0x03DA, /* Feature Control (W) */ Seqx = 0x03C4, /* Sequencer Index, Data at Seqx+1 */ Crtx = 0x03D4, /* CRT Controller Index, Data at Crtx+1 */ Grx = 0x03CE, /* Graphics Controller Index, Data at Grx+1 */ Attrx = 0x03C0, /* Attribute Controller Index and Data */ PaddrW = 0x03C8, /* Palette Address Register, write */ Pdata = 0x03C9, /* Palette Data Register */ Pixmask = 0x03C6, /* Pixel Mask Register */ PaddrR = 0x03C7, /* Palette Address Register, read */ Pstatus = 0x03C7, /* DAC Status (RO) */ Pcolours = 256, /* Palette */ Pred = 0, Pgreen = 1, Pblue = 2, Pblack = 0x00, Pwhite = 0xFF, }; #define VGAMEM() 0xA0000 #define vgai(port) inb(port) #define vgao(port, data) outb(port, data) extern int vgaxi(long, uchar); extern int vgaxo(long, uchar, uchar); /* */ typedef struct VGAdev VGAdev; typedef struct VGAcur VGAcur; typedef struct VGAscr VGAscr; struct VGAdev { char* name; void (*enable)(VGAscr*); void (*disable)(VGAscr*); void (*page)(VGAscr*, int); void (*linear)(VGAscr*, int, int); void (*drawinit)(VGAscr*); int (*fill)(VGAscr*, Rectangle, ulong); void (*ovlctl)(VGAscr*, Chan*, void*, int); int (*ovlwrite)(VGAscr*, void*, int, vlong); void (*flush)(VGAscr*, Rectangle); }; struct VGAcur { char* name; void (*enable)(VGAscr*); void (*disable)(VGAscr*); void (*load)(VGAscr*, Cursor*); int (*move)(VGAscr*, Point); }; /* */ struct VGAscr { Lock devlock; VGAdev* dev; Pcidev* pci; VGAcur* cur; uintptr storage; Cursor; int useflush; uvlong paddr; /* frame buffer */ void* vaddr; int apsize; int bpp; int pitch; int width; int height; ulong io; /* device specific registers */ ulong *mmio; ulong colormap[Pcolours][3]; int palettedepth; Memimage* gscreen; Memdata* gscreendata; Memsubfont* memdefont; int (*fill)(VGAscr*, Rectangle, ulong); int (*scroll)(VGAscr*, Rectangle, Rectangle); void (*blank)(VGAscr*, int); ulong id; /* internal identifier for driver use */ int softscreen; int tilt; }; extern VGAscr vgascreen[]; enum { Backgnd = 0, /* black */ }; /* mouse.c */ extern void mousectl(Cmdbuf*); extern void mouseresize(void); extern void mouseredraw(void); /* screen.c */ extern int hwaccel; /* use hw acceleration */ extern int hwblank; /* use hw blanking */ extern char *tiltstr[4]; extern Rectangle actualscreensize(VGAscr*); extern void setactualsize(VGAscr*, Rectangle); extern void setscreensize(VGAscr*, int, int, int, ulong, int); extern void addvgaseg(char*, uvlong, vlong); extern Memdata* attachscreen(Rectangle*, ulong*, int*, int*, int*); extern void flushmemscreen(Rectangle); extern void cursoron(void); extern void cursoroff(void); extern void setcursor(Cursor*); extern int screenaperture(VGAscr*, int, int); extern void blankscreen(int); extern char* rgbmask2chan(char *buf, int depth, u32int rm, u32int gm, u32int bm); extern void bootscreeninit(void); extern void bootscreenconf(VGAscr*); /* devdraw.c */ extern void deletescreenimage(void); extern void resetscreenimage(void); extern void setscreenimageclipr(Rectangle); extern void drawflush(void); extern QLock drawlock; /* vga.c */ extern void vgascreenwin(VGAscr*); extern void vgaimageinit(ulong); extern void vgalinearpci(VGAscr*); extern void vgalinearaddr(VGAscr*, uvlong, vlong); extern void vgablank(VGAscr*, int); extern Lock vgascreenlock; #define ishwimage(i) (vgascreen[0].gscreendata && (i)->data->bdata == vgascreen[0].gscreendata->bdata) /* swcursor.c */ void swcursorhide(int); void swcursoravoid(Rectangle); void swcursordraw(Point); void swcursorload(Cursor *); void swcursorinit(void);