X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~yarrgweb/git?p=ypp-sc-tools.web-live.git;a=blobdiff_plain;f=pctb%2Fconvert.h;h=0ab09dbccb7ac56b2076cb870d9956f701af6f09;hp=80979ec2e885829f8d15faccd887c9c63a6812b0;hb=a4b2def5d1dfcc917b5797f4ffdfc572b2d2c076;hpb=8d6cf0f224b5df9866eba9350343067edcee78dd

diff --git a/pctb/convert.h b/pctb/convert.h
index 80979ec..0ab09db 100644
--- a/pctb/convert.h
+++ b/pctb/convert.h
@@ -51,6 +51,8 @@ typedef struct RgbImage {
    */
 } RgbImage;
 
+typedef unsigned long Rgb;
+
 void identify_rgbimage(const RgbImage *base, Rect portion,
 		       char result[MAXIMGIDENT], const char *what);
 RgbImage *alloc_rgb_image(int w, int h);
@@ -58,9 +60,16 @@ void fwrite_ppmraw(FILE *f, const RgbImage *ri);
 
 #define RI_PIXEL(ri,x,y) ((ri)->data + ((y)*(ri)->w + (x)) * 3)
 
+static inline Rgb ri_rgb(const RgbImage *ri, int x, int y) {
+  const unsigned char *rip= RI_PIXEL(ri,x,y);
+  return (rip[0] << 16) |
+         (rip[1] <<  8) |
+         (rip[2]      );
+}
+
 /*----- from structure.c -----*/
 
-void find_structure(const CanonImage *im, int *max_relevant_y_r);
+void find_structure(CanonImage *im, int *max_relevant_y_r);
 Rect find_sunshine_widget(void);
 
 void find_islandname(RgbImage *ri);
@@ -118,7 +127,6 @@ void take_one_screenshot(void);
 #define MAX_PAGES 100
 extern CanonImage *page_images[MAX_PAGES];
 extern int npages;
-RgbImage *page0_rgbimage;
 
 extern const char *ocean, *pirate;
 extern char *archipelago, *island;