X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~yarrgweb/git?a=blobdiff_plain;f=pctb%2Fstructure.h;h=77396cf390db06ade4c30f7279b0105aa42377c7;hb=c70c2c7701a7777524881f3f88ab2db2851f932a;hp=e8ea9f9804a654f66e26e8c2aec3b97dc220b3c0;hpb=f2c5d45ada202f2ad2640b260cac2fd7bb83eb3e;p=ypp-sc-tools.web-live.git

diff --git a/pctb/structure.h b/pctb/structure.h
index e8ea9f9..77396cf 100644
--- a/pctb/structure.h
+++ b/pctb/structure.h
@@ -77,4 +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]
+   */
+} RawImage;
+
+RawImage *alloc_raw_image(int w, int h);
+
+#define RI_PIXEL(ri,x,y) ((ri)->data + ((y)*(ri)->w + (x)) * 3)
+
+#define CANONIMG_ALSO_STORERAW(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*/