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71 lines
1.1 KiB
C
71 lines
1.1 KiB
C
#ifndef MATRIX_INCLUDED
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#define MATRIX_INCLUDED
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#ifdef __cplusplus
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extern "C" {
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#endif
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//
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// Top BYTE of each glyph is used as flags
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// (redraw state, intensity etc)
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//
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// Bottom BYTE of each glyph is the character value
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//
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// Bit: 15 14 13-8 | 7-0
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//
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// [Redraw][Blank][Intensity] [Glyph]
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//
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typedef unsigned short GLYPH;
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#define GLYPH_REDRAW 0x8000
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#define GLYPH_BLANK 0x4000
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//
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// The "matrix" is basically an array of these
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// column structures, positioned side-by-side
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//
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typedef struct
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{
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BOOL state;
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int countdown;
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BOOL started;
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int runlen;
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int blippos;
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int bliplen;
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int length;
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GLYPH *glyph;
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} MATRIX_COLUMN;
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typedef struct
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{
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int width;
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int height;
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int numcols;
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int numrows;
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// bitmap containing glyphs.
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HDC hdcBitmap;
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HBITMAP hbmBitmap;
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MATRIX_MESSAGE *message;
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MATRIX_COLUMN column[1];
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} MATRIX;
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GLYPH RandomGlyph(int intensity);
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void DrawGlyph(MATRIX *matrix, HDC hdc, int xpos, int ypos, GLYPH glyph);
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HWND CreateScreenSaveWnd(HWND hwndParent, RECT *rect);
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void InitScreenSaveClass();
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#ifdef __cplusplus
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}
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#endif
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#endif
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