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/* RCSid: $Id: pic.h,v 2.3 2003/07/14 22:24:00 schorsch Exp $ */ |
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/* the following three structures are used by ciq */ |
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#ifndef _RAD_PIC_H_ |
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#define _RAD_PIC_H_ |
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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typedef int colormap[3][256]; |
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typedef unsigned char pixel; |
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typedef struct { |
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pixel r,g,b; |
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} rgbpixel; |
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#define rgb_bright(p) (int)((77L*(p)->r+151L*(p)->g+28L*(p)->b)/256) |
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/* image resolution */ |
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extern int xmax,ymax; |
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/* defined in closest.c */ |
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extern void initializeclosest(void); |
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extern int closest(int r, int g, int b); |
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/* defined in cut.c */ |
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extern int makecm(int nw, int *na); |
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/* defined in ciq.c */ |
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extern void ciq(int dith, int nw, int synth, colormap cm); |
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/* defined in biq.c */ |
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extern void biq(int dith, int nw, int synth, colormap cm); |
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/* defined in in the calling program */ |
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extern void picreadcm(colormap map); |
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extern void picwritecm(colormap cm); |
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extern void picwriteline(int y, pixel *l); |
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extern void picreadline3(int y, rgbpixel *l3); |
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#ifdef __cplusplus |
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} |
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#endif |
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#endif /* _RAD_PIC_H_ */ |
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