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root/radiance/ray/src/px/pic.h
Revision: 2.4
Committed: Sun Mar 28 20:33:14 2004 UTC (20 years ago) by schorsch
Content type: text/plain
Branch: MAIN
CVS Tags: rad5R4, rad5R2, rad4R2P2, rad5R0, rad5R1, rad3R7P2, rad3R7P1, rad4R2, rad4R1, rad4R0, rad3R6, rad3R6P1, rad3R8, rad3R9, rad4R2P1, rad5R3, HEAD
Changes since 2.3: +21 -1 lines
Log Message:
Continued ANSIfication, and other fixes and clarifications.

File Contents

# Content
1 /* RCSid: $Id: pic.h,v 2.3 2003/07/14 22:24:00 schorsch Exp $ */
2 /* the following three structures are used by ciq */
3
4 #ifndef _RAD_PIC_H_
5 #define _RAD_PIC_H_
6
7 #ifdef __cplusplus
8 extern "C" {
9 #endif
10
11 typedef int colormap[3][256];
12
13 typedef unsigned char pixel;
14
15 typedef struct {
16 pixel r,g,b;
17 } rgbpixel;
18
19 #define rgb_bright(p) (int)((77L*(p)->r+151L*(p)->g+28L*(p)->b)/256)
20
21 /* image resolution */
22 extern int xmax,ymax;
23
24 /* defined in closest.c */
25 extern void initializeclosest(void);
26 extern int closest(int r, int g, int b);
27
28 /* defined in cut.c */
29 extern int makecm(int nw, int *na);
30
31 /* defined in ciq.c */
32 extern void ciq(int dith, int nw, int synth, colormap cm);
33
34 /* defined in biq.c */
35 extern void biq(int dith, int nw, int synth, colormap cm);
36
37 /* defined in in the calling program */
38 extern void picreadcm(colormap map);
39 extern void picwritecm(colormap cm);
40 extern void picwriteline(int y, pixel *l);
41 extern void picreadline3(int y, rgbpixel *l3);
42
43
44 #ifdef __cplusplus
45 }
46 #endif
47 #endif /* _RAD_PIC_H_ */
48