WIP island determination; rename rawimage etc. to rgbimage

[ypp-sc-tools.db-test.git] / pctb / structure.h

diff --git a/pctb/structure.h b/pctb/structure.h
index c6a8c9a9280a909a3dd296df2ad39551f93b1b01..6409c339038c4b0d2233e5e4c4db6f8245fcdd9e 100644 (file)
--- a/pctb/structure.h
+++ b/pctb/structure.h
@@ -1,3 +1,31 @@
+/*
+ * 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
 
@@ -41,8 +69,7 @@ CanonImage *alloc_canon_image(int w, int h);
       }                                                                \
       if (DEBUGP(rect)) {                                      \
        fprintf(debug, "%4d ",y);                               \
-       int r= fwrite(im->d + y*w, 1,w, debug);                 \
-       eassert(r==w);                                          \
+       fwrite(im->d + y*w, 1,w, debug);                        \
        fputc('\n',debug);                                      \
       }                                                                \
     }                                                          \
@@ -50,4 +77,25 @@ CanonImage *alloc_canon_image(int w, int h);
   }while(0)
 
 
+typedef struct {
+  int w, h;
+  char data[];
+  /* red   = data[ y*w*3 + x*3 + 0 ] = RI_PIXEL(ri,x,y)[0]
+   * green = data[ y*w*3 + x*3 + 1 ] = RI_PIXEL(ri,x,y)[1]
+   * blue  = data[ y*w*3 + x*3 + 2 ] = RI_PIXEL(ri,x,y)[2]
+   */
+} RgbImage;
+
+RgbImage *alloc_rgb_image(int w, int h);
+
+#define RI_PIXEL(ri,x,y) ((ri)->data + ((y)*(ri)->w + (x)) * 3)
+
+#define CANONIMG_ALSO_STORERGB(ri)             \
+  do{                                          \
+    char *rip= RI_PIXEL((ri),x,y);             \
+    rip[0]= rgb >> 16;                         \
+    rip[1]= rgb >> 8;                          \
+    rip[2]= rgb;                               \
+  }while(0)
+
 #endif /*STRUCTURE_H*/