1 files changed, 0 insertions, 73 deletions
diff --git a/test/buffer_diff.c b/test/buffer_diff.c
deleted file mode 100644
index 07abd62a..00000000
--- a/test/buffer_diff.c
+++ /dev/null
@@ -1,73 +0,0 @@
-/* imagediff - Compare two images
- *
- * Copyright © 2004 Richard D. Worth
- *
- * Permission to use, copy, modify, distribute, and sell this software
- * and its documentation for any purpose is hereby granted without
- * fee, provided that the above copyright notice appear in all copies
- * and that both that copyright notice and this permission notice
- * appear in supporting documentation, and that the name of Richard Worth
- * not be used in advertising or publicity pertaining to distribution
- * of the software without specific, written prior permission.
- * Richard Worth makes no representations about the suitability of this
- * software for any purpose.  It is provided "as is" without express
- * or implied warranty.
- * 
- * RICHARD WORTH DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
- * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN
- * NO EVENT SHALL RICHARD WORTH BE LIABLE FOR ANY SPECIAL, INDIRECT OR
- * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
- * OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
- * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
- * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- *
- * Author: Richard D. Worth <richard@theworths.org> */
-
-#include "buffer_diff.h"
-
-/* Image comparison code courttesy of Richard Worth.
- * Returns number of pixels changed.
- * Also fills out a "diff" image intended to visually show where the
- * images differ.
- */
-int
-buffer_diff (char *buf_a, char *buf_b, char *buf_diff,
-	    int width, int height, int stride)
-{
-    int x, y;
-    int total_pixels_changed = 0;
-    unsigned char *row_a, *row_b, *row;
-
-    for (y = 0; y < height; y++)
-    {
-	row_a = buf_a + y * stride;
-	row_b = buf_b + y * stride;
-	row = buf_diff + y * stride;
-	for (x = 0; x < width; x++)
-	{
-	    int channel;
-	    unsigned char value_a, value_b;
-	    int pixel_changed = 0;
-	    for (channel = 0; channel < 4; channel++)
-	    {
-		double diff;
-		value_a = row_a[x * 4 + channel];
-		value_b = row_b[x * 4 + channel];
-		if (value_a != value_b)
-		    pixel_changed = 1;
-		diff = value_a - value_b;
-		row[x * 4 + channel] = 128 + diff / 3.0;
-	    }
-	    if (pixel_changed) {
-		total_pixels_changed++;
-	    } else {
-		row[x*4+0] = 0;
-		row[x*4+1] = 0;
-		row[x*4+2] = 0;
-	    }
-	    row[x * 4 + 3] = 0xff; /* Set ALPHA to 100% (opaque) */
-	}
-    }
-
-    return total_pixels_changed;
-}