Author: akv
Date: 2011-01-18 19:30:38 +0100 (Tue, 18 Jan 2011)
New Revision: 3803
Modified:
trunk/librawstudio/rs-image16.c
trunk/librawstudio/rs-image16.h
Log:
Added rs_image16_get_checksum() - slow, should only be used for testing
purposes.
Modified: trunk/librawstudio/rs-image16.c
===================================================================
--- trunk/librawstudio/rs-image16.c 2011-01-14 11:45:02 UTC (rev 3802)
+++ trunk/librawstudio/rs-image16.c 2011-01-18 18:30:38 UTC (rev 3803)
@@ -303,3 +303,31 @@
return pixel;
}
+
+gchar *
+rs_image16_get_checksum(RS_IMAGE16 *image)
+{
+ gint w = image->w;
+ gint h = image->h;
+ gint c = image->channels;
+
+ gint x, y, z;
+
+ gushort *pixels = g_new0(gushort, w*h*c);
+ gushort *pixel = NULL;
+ gushort *pixels_iter = pixels;
+
+ for (x=0; x<w; x++)
+ {
+ for (y=0; y<h; y++)
+ {
+ pixel = rs_image16_get_pixel(image, x, y, FALSE);
+ for (z=0; z<c; z++)
+ {
+ *pixels_iter = pixel[z];
+ pixels_iter++;
+ }
+ }
+ }
+ return g_compute_checksum_for_data(G_CHECKSUM_SHA256, (guchar *)
pixels, w*h*c);
+}
Modified: trunk/librawstudio/rs-image16.h
===================================================================
--- trunk/librawstudio/rs-image16.h 2011-01-14 11:45:02 UTC (rev 3802)
+++ trunk/librawstudio/rs-image16.h 2011-01-18 18:30:38 UTC (rev 3803)
@@ -87,4 +87,6 @@
*/
extern inline gushort *rs_image16_get_pixel(RS_IMAGE16 *image, gint x, gint y,
gboolean extend_edges);
+extern gchar *rs_image16_get_checksum(RS_IMAGE16 *image);
+
#endif /* RS_IMAGE16_H */
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