From 530ffd0b7d3c39757b20f00716e486b5caf89aff Mon Sep 17 00:00:00 2001 From: sanine Date: Wed, 12 Oct 2022 12:03:23 -0500 Subject: add cairo --- libs/cairo-1.16.0/test/pdiff/pdiff.h | 40 ++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 libs/cairo-1.16.0/test/pdiff/pdiff.h (limited to 'libs/cairo-1.16.0/test/pdiff/pdiff.h') diff --git a/libs/cairo-1.16.0/test/pdiff/pdiff.h b/libs/cairo-1.16.0/test/pdiff/pdiff.h new file mode 100644 index 0000000..30fec06 --- /dev/null +++ b/libs/cairo-1.16.0/test/pdiff/pdiff.h @@ -0,0 +1,40 @@ +/* + Copyright (C) 2006 Yangli Hector Yee + Copyright (C) 2006 Red Hat, Inc. + + This program is free software; you can redistribute it and/or modify it under the terms of the + GNU General Public License as published by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; + without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + See the GNU General Public License for more details. + + You should have received a copy of the GNU General Public License along with this program; + if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA +*/ + +#ifndef _PDIFF_H +#define _PDIFF_H + +#include + +typedef int bool; +#ifndef true +#define true 1 +#endif +#ifndef false +#define false 0 +#endif + +/* Image comparison metric using Yee's method (and a cairo interface) + * References: A Perceptual Metric for Production Testing, Hector Yee, Journal of Graphics Tools 2004 + */ +int +pdiff_compare (cairo_surface_t *surface_a, + cairo_surface_t *surface_b, + double gamma, + double luminance, + double field_of_view); + +#endif -- cgit v1.2.1