48 lines
1.4 KiB
C
48 lines
1.4 KiB
C
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/*** T I L E S ***/
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#ifndef __TILES_H__
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#define __TILES_H__
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void tile_init();
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void loadTiles(unsigned int tilesOffset, unsigned int far *memTiles);
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void loadMap(unsigned char *map, unsigned int w, unsigned int h);
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void drawSprite(unsigned int far *sprite, int x, int y, char *remap);
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void scroll(int newX, int newY);
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void drawScreen();
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void blit32x32(unsigned int offsetFrom, unsigned int offsetTo);
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void blitMemToVid(unsigned int offset, unsigned int far *mem, unsigned int planeStride, int count);
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void writeTile(unsigned int *buf, unsigned int far *tile);
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void overlaySprite(unsigned int *buf, unsigned int far *sprite, int shift, int yStart, char *remap);
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void paintBuffer(unsigned int *buf, unsigned int vidOffset);
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#define PAGE_TILES_W 21
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#define PAGE_TILES_H 14
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#define PAGE_TILES_COUNT (PAGE_TILES_H * PAGE_TILES_W)
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#define PAGE_STRIDE (PAGE_TILES_W << 1)
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#define NUM_BUFFERS 20
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#define BUF_WSTRIDE 16
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#define BUF_WSIZE (BUF_WSTRIDE * 4)
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typedef struct {
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unsigned int w;
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unsigned int h;
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int scrollX;
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int scrollY;
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unsigned int pageOffset[2];
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unsigned char dirty[2][PAGE_TILES_COUNT];
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unsigned int tilesOffset;
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unsigned int far *memTiles;
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unsigned char *map;
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unsigned int buffer[NUM_BUFFERS][BUF_WSIZE];
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unsigned int bufferOffset[NUM_BUFFERS];
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unsigned char currentPage;
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unsigned char nextBuffer;
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unsigned char firstBuffer;
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} TiledScreen_t;
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extern TiledScreen_t screen;
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#endif
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