+/*
+ * Image canonicalisation function for use by callers feeding
+ * images into structure.c's routines.
+ */
+/*
+ * This is part of ypp-sc-tools, a set of third-party tools for assisting
+ * players of Yohoho Puzzle Pirates.
+ *
+ * Copyright (C) 2009 Ian Jackson <ijackson@chiark.greenend.org.uk>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Yohoho and Puzzle Pirates are probably trademarks of Three Rings and
+ * are used without permission. This program is not endorsed or
+ * sponsored by Three Rings.
+ */
+
#ifndef STRUCTURE_H
#define STRUCTURE_H
CanonImage *alloc_canon_image(int w, int h);
-#ifdef DEBUG_RECTANGLES
-# define CANIMG_DEBUG_RECTANGLE_1LINE(im,w,h) \
- fprintf(debug, "%4d ",y); \
- int r= fwrite(im->d + y*w, 1,w, debug); \
- eassert(r==w); \
- fputc('\n',debug);
-#else
-# define CANIMG_DEBUG_RECTANGLE_1LINE(im,y,h) /* nothing */
-#endif
-
-#define CANONICALISE_IMAGE(im,w,h, COMPUTE_RGB) do{ \
- /* compute_rgb should be a number of statements, or \
- * a block, which assigns to \
- * unsigned long rgb; \
- * given the values of \
- * int x,y; \
- * all of which are anamorphic. Result is stored in im. \
- * The COMPUTE_RGB is executed exactly once for \
- * each pixel in reading order. \
- */ \
- (im)= alloc_canon_image((w), (h)); \
- \
- int x,y; \
- for (y=0; y<(h); y++) { \
- for (x=0; x<(w); x++) { \
- const CanonColourInfo *cci; \
- unsigned long rgb; \
- COMPUTE_RGB; \
- for (cci=canoncolourinfos; cci->c; cci++) \
- if (cci->rgb == rgb) { \
- (im)->d[y*(w) + x]= cci->c; \
- break; \
- } \
- } \
- CANIMG_DEBUG_RECTANGLE_1LINE((im),(w),(h)) \
- } \
- debug_flush(); \
+#define CANONICALISE_IMAGE(im,w,h, COMPUTE_RGB) do{ \
+ /* compute_rgb should be a number of statements, or \
+ * a block, which assigns to \
+ * unsigned long rgb; \
+ * given the values of \
+ * int x,y; \
+ * all of which are anamorphic. Result is stored in im. \
+ * The COMPUTE_RGB is executed exactly once for \
+ * each pixel in reading order. \
+ */ \
+ (im)= alloc_canon_image((w), (h)); \
+ \
+ int x,y; \
+ unsigned long last_rgb= ~0UL; \
+ int last_c= -1; \
+ for (y=0; y<(h); y++) { \
+ for (x=0; x<(w); x++) { \
+ const CanonColourInfo *cci; \
+ unsigned long rgb; \
+ COMPUTE_RGB; \
+ if (rgb == last_rgb) { \
+ (im)->d[y*(w) + x]= last_c; \
+ } else { \
+ for (cci=canoncolourinfos; cci->c; cci++) { \
+ if (cci->rgb == rgb) { \
+ last_rgb= rgb; \
+ (im)->d[y*(w) + x]= last_c= cci->c; \
+ break; \
+ } \
+ } \
+ } \
+ } \
+ if (DEBUGP(rect)) { \
+ fprintf(debug, "%4d ",y); \
+ fwrite(im->d + y*w, 1,w, debug); \
+ fputc('\n',debug); \
+ } \
+ } \
+ debug_flush(); \
+ }while(0)
+
+
+#define CANONIMG_ALSO_STORERGB(ri) \
+ do{ \
+ unsigned char *rip= RI_PIXEL((ri),x,y); \
+ rip[0]= rgb >> 16; \
+ rip[1]= rgb >> 8; \
+ rip[2]= rgb; \
}while(0)