X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?a=blobdiff_plain;f=tools%2Fpngdump%2Fimage.h;fp=tools%2Fpngdump%2Fimage.h;h=d5aaccf1b92d5fa3dddf0e5ac7fadacfd9dbc295;hb=95693de3106b0304fe8e5c705c37e633f91a4ad5;hp=7a42fba59e3a8b0da1e494218608746825d42907;hpb=11d447b3ef2de519e646802c0721e07cd5596133;p=gbajam21

diff --git a/tools/pngdump/image.h b/tools/pngdump/image.h
index 7a42fba..d5aaccf 100644
--- a/tools/pngdump/image.h
+++ b/tools/pngdump/image.h
@@ -9,7 +9,8 @@ struct image {
 	int width, height;
 	int bpp;
 	int nchan;
-	int scansz, pitch;
+	int scansz;	/* scanline size in bytes */
+	int pitch;	/* bytes from one scanline to the next */
 	int cmap_ncolors;
 	struct cmapent cmap[256];
 	unsigned char *pixels;
@@ -24,4 +25,12 @@ int cmp_image(struct image *a, struct image *b);
 void blit(struct image *src, int sx, int sy, int w, int h, struct image *dst, int dx, int dy);
 void overlay_key(struct image *src, unsigned int key, struct image *dst);
 
+unsigned int get_pixel(struct image *img, int x, int y);
+unsigned int get_pixel_rgb(struct image *img, int x, int y, unsigned int *rgb);
+void put_pixel(struct image *img, int x, int y, unsigned int pix);
+
+void quantize_image(struct image *img, int maxcol);
+int gen_shade_lut(struct image *img, int levels, int maxcol, struct cmapent *shade_cmap,
+		int *shade_lut);
+
 #endif	/* IMAGE_H_ */