mirror of
https://gitlab.freedesktop.org/cairo/cairo.git
synced 2026-01-03 11:40:21 +01:00
4670366ede
This patch was produced with the following (GNU) sed script: sed -i -r -e '/^[ \t]*\/?\*/ s/[ \t]+$//' run on all *.[ch] files within cairo, (though I manually excluded src/cairo-atsui-font.c which has a code line that appears as a comment to this script).
64 lines
2.2 KiB
C
64 lines
2.2 KiB
C
/* 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 <stdio.h>
|
|
#include <stdlib.h>
|
|
|
|
#include "buffer-diff.h"
|
|
#include "read-png.h"
|
|
#include "write-png.h"
|
|
#include "xmalloc.h"
|
|
|
|
int
|
|
main (int argc, char *argv[])
|
|
{
|
|
int total_pixels_changed;
|
|
|
|
unsigned int ax, ay, bx, by;
|
|
|
|
if (argc != 3 && argc != 7) {
|
|
fprintf (stderr, "Usage: %s image1.png image2.png [ax ay bx by]\n", argv[0]);
|
|
fprintf (stderr, "Computes an output image designed to present a \"visual diff\" such that even\n");
|
|
fprintf (stderr, "small errors in single pixels are readily apparent in the output.\n");
|
|
fprintf (stderr, "The output image is written on stdout.\n");
|
|
exit (1);
|
|
}
|
|
|
|
if (argc == 7) {
|
|
ax = strtoul (argv[3], NULL, 0);
|
|
ay = strtoul (argv[4], NULL, 0);
|
|
bx = strtoul (argv[5], NULL, 0);
|
|
by = strtoul (argv[6], NULL, 0);
|
|
} else {
|
|
ax = ay = bx = by = 0;
|
|
}
|
|
|
|
total_pixels_changed = image_diff (argv[1], argv[2], NULL, ax, ay, bx, by);
|
|
|
|
if (total_pixels_changed)
|
|
fprintf (stderr, "Total pixels changed: %d\n", total_pixels_changed);
|
|
|
|
return (total_pixels_changed != 0);
|
|
}
|