reactos/base/applications/screensavers/matrix/matrix.h

   1 #ifndef MATRIX_INCLUDED
   2 #define MATRIX_INCLUDED
   3
   4 #ifdef __cplusplus
   5 extern "C" {
   6 #endif
   7
   8 //
   9 // Top BYTE of each glyph is used as flags
  10 // (redraw state, intensity etc)
  11 //
  12 // Bottom BYTE of each glyph is the character value
  13 //
  14 // Bit:  15     14     13-8     |  7-0
  15 //
  16 //    [Redraw][Blank][Intensity] [Glyph]
  17 //
  18 typedef unsigned short GLYPH;
  19
  20 #define GLYPH_REDRAW 0x8000
  21 #define GLYPH_BLANK  0x4000
  22
  23 //
  24 //      The "matrix" is basically an array of these
  25 //  column structures, positioned side-by-side
  26 //
  27 typedef struct
  28 {
  29         BOOL    state;
  30         int             countdown;
  31
  32         BOOL    started;
  33         int             runlen;
  34
  35         int             blippos;
  36         int             bliplen;
  37
  38         int             length;
  39         GLYPH   *glyph;
  40
  41 } MATRIX_COLUMN;
  42
  43 typedef struct
  44 {
  45         int                             width;
  46         int                             height;
  47         int                             numcols;
  48         int                             numrows;
  49
  50         // bitmap containing glyphs.
  51         HDC                             hdcBitmap;
  52         HBITMAP                 hbmBitmap;
  53
  54         MATRIX_MESSAGE *message;
  55
  56         MATRIX_COLUMN   column[1];
  57
  58 } MATRIX;
  59
  60 GLYPH RandomGlyph(int intensity);
  61 void  DrawGlyph(MATRIX *matrix, HDC hdc, int xpos, int ypos, GLYPH glyph);
  62
  63 HWND CreateScreenSaveWnd(HWND hwndParent, RECT *rect);
  64 void InitScreenSaveClass();
  65
  66 #ifdef __cplusplus
  67 }
  68 #endif
  69
  70 #endif