X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~yarrgweb/git?a=blobdiff_plain;f=pctb%2Fstructure.h;h=6409c339038c4b0d2233e5e4c4db6f8245fcdd9e;hb=2aaae8ee04d0a6a8ab85751ceb67f222d259eba8;hp=008c183421dd1a00a8148f5872240cc2d40d466c;hpb=52210ae670b22ce2d187bd2dc943fd8ae3f4a8c0;p=ypp-sc-tools.db-test.git

diff --git a/pctb/structure.h b/pctb/structure.h
index 008c183..6409c33 100644
--- 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
 
@@ -49,4 +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*/