reactos/drivers/video/displays/vga/vgavideo/vgavideo.h

   1 // FIXME: Make these variables so we can also use modes like 800x600
   2 #define SCREEN_X        640
   3 #define SCREEN_Y        480
   4
   5 #define SCREEN_STRIDE   80
   6
   7 #define VGA_NORMAL 0
   8 #define VGA_AND    8
   9 #define VGA_OR     16
  10 #define VGA_XOR    24
  11
  12 //This is in mingw standard headers
  13 //typedef struct { int quot, rem; } div_t;
  14
  15 extern int maskbit[640];
  16 extern int y80[480];
  17 extern int xconv[640];
  18 extern int bit8[640];
  19 extern int startmasks[8];
  20 extern int endmasks[8];
  21
  22 extern UCHAR PreCalcReverseByte[256];
  23
  24 extern PBYTE vidmem;
  25
  26 #define MISC     0x3c2
  27 #define SEQ      0x3c4
  28 #define CRTC     0x3d4
  29 #define GRAPHICS 0x3ce
  30 #define FEATURE  0x3da
  31 #define ATTRIB   0x3c0
  32 #define STATUS   0x3da
  33
  34 typedef struct _VideoMode {
  35   unsigned short VidSeg;
  36   unsigned char  Misc;
  37   unsigned char  Feature;
  38   unsigned char  Seq[5];
  39   unsigned char  Crtc[25];
  40   unsigned char  Gfx[9];
  41   unsigned char  Attrib[21];
  42 } VideoMode;
  43
  44 VOID vgaPreCalc();
  45 VOID vgaPutPixel(INT x, INT y, UCHAR c);
  46 VOID vgaPutByte(INT x, INT y, UCHAR c);
  47 VOID vgaGetByte(ULONG offset,
  48                 UCHAR *b, UCHAR *g,
  49                 UCHAR *r, UCHAR *i);
  50 INT vgaGetPixel(INT x, INT y);
  51 BOOL vgaHLine(INT x, INT y, INT len, UCHAR c);
  52 BOOL vgaVLine(INT x, INT y, INT len, UCHAR c);
  53 INT __cdecl abs(INT nm);
  54 BOOL VGADDIIntersectRect(PRECTL prcDst, PRECTL prcSrc1, PRECTL prcSrc2);
  55
  56 #define SEQ_I   0x3C4           /* Sequencer Index */
  57 #define SEQ_D   0x3C5           /* Sequencer Data Register */
  58
  59 #define GRA_I   0x3CE           /* Graphics Controller Index */
  60 #define GRA_D   0x3CF           /* Graphics Controller Data Register */
  61
  62 #define LowByte(w)  (*((unsigned char *)&(w) + 0))
  63 #define HighByte(w) (*((unsigned char *)&(w) + 1))
  64
  65 #define ASSIGNVP4(x, y, vp) vp = vidmem /* VBUF */ + (((x) + (y)*SCREEN_X) >> 3);
  66 #define ASSIGNMK4(x, y, mask) mask = 0x80 >> ((x) & 7);
  67
  68 void get_masks(int x, int w);
  69
  70 #define mod8(n) ((n)&7)
  71 #define mod2(n) ((n)&1)
  72 void DIB_BltFromVGA(int x, int y, int w, int h, void *b, int Dest_lDelta);
  73 void DIB_BltToVGA(int x, int y, int w, int h, void *b, int Source_lDelta, int StartMod);
  74 void DIB_BltToVGAWithXlate(int x, int y, int w, int h, void *b, int Source_lDelta, XLATEOBJ* Xlate);
  75 void DIB_TransparentBltToVGA(int x, int y, int w, int h, void *b, int Source_lDelta, ULONG trans);