mirror of
https://gitlab.freedesktop.org/cairo/cairo.git
synced 2025-12-20 15:10:08 +01:00
640eb02067
As another nitpick, a comma alone is legal for separating keywords, but most tests use a comma and a space. Update the few tests that don't, to make this consistent. Signed-off-by: Bryce Harrington <b.harrington@samsung.com> Signed-off-by: Uli Schlachter <psychon@znc.in>
99 lines
3.3 KiB
C
99 lines
3.3 KiB
C
/*
|
|
* Copyright © 2009 Adrian Johnson
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person
|
|
* obtaining a copy of this software and associated documentation
|
|
* files (the "Software"), to deal in the Software without
|
|
* restriction, including without limitation the rights to use, copy,
|
|
* modify, merge, publish, distribute, sublicense, and/or sell copies
|
|
* of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be
|
|
* included in all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
|
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
|
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
|
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
* SOFTWARE.
|
|
*
|
|
* Author: Adrian Johnson <ajohnson@redneon.com>
|
|
*/
|
|
|
|
#include "cairo-test.h"
|
|
#include <float.h>
|
|
|
|
#define SIZE 256
|
|
|
|
/* This test is designed to test the accuracy of the rendering of mesh
|
|
* patterns.
|
|
*
|
|
* Color accuracy is tested by a square patch covering the whole
|
|
* surface with black and white corners.
|
|
*
|
|
* Extents accuracy is checked by a small red square patch at the
|
|
* center of the surface which should measure 2x2 pixels.
|
|
*/
|
|
|
|
static cairo_test_status_t
|
|
draw (cairo_t *cr, int width, int height)
|
|
{
|
|
cairo_pattern_t *pattern;
|
|
double offset;
|
|
|
|
cairo_test_paint_checkered (cr);
|
|
|
|
pattern = cairo_pattern_create_mesh ();
|
|
|
|
cairo_mesh_pattern_begin_patch (pattern);
|
|
|
|
cairo_mesh_pattern_move_to (pattern, 0, 0);
|
|
cairo_mesh_pattern_line_to (pattern, 1, 0);
|
|
cairo_mesh_pattern_line_to (pattern, 1, 1);
|
|
cairo_mesh_pattern_line_to (pattern, 0, 1);
|
|
|
|
cairo_mesh_pattern_set_corner_color_rgb (pattern, 0, 0, 0, 0);
|
|
cairo_mesh_pattern_set_corner_color_rgb (pattern, 1, 1, 1, 1);
|
|
cairo_mesh_pattern_set_corner_color_rgb (pattern, 2, 0, 0, 0);
|
|
cairo_mesh_pattern_set_corner_color_rgb (pattern, 3, 1, 1, 1);
|
|
|
|
cairo_mesh_pattern_end_patch (pattern);
|
|
|
|
cairo_mesh_pattern_begin_patch (pattern);
|
|
|
|
/* A small 1x1 red patch, that should be rendered as a 2x2 red
|
|
* square in the center of the image */
|
|
|
|
offset = 0.5 / SIZE;
|
|
|
|
cairo_mesh_pattern_move_to (pattern, 0.5 + offset, 0.5 + offset);
|
|
cairo_mesh_pattern_line_to (pattern, 0.5 + offset, 0.5 - offset);
|
|
cairo_mesh_pattern_line_to (pattern, 0.5 - offset, 0.5 - offset);
|
|
cairo_mesh_pattern_line_to (pattern, 0.5 - offset, 0.5 + offset);
|
|
|
|
cairo_mesh_pattern_set_corner_color_rgb (pattern, 0, 1, 0, 0);
|
|
cairo_mesh_pattern_set_corner_color_rgb (pattern, 1, 1, 0, 0);
|
|
cairo_mesh_pattern_set_corner_color_rgb (pattern, 2, 1, 0, 0);
|
|
cairo_mesh_pattern_set_corner_color_rgb (pattern, 3, 1, 0, 0);
|
|
|
|
cairo_mesh_pattern_end_patch (pattern);
|
|
|
|
cairo_scale (cr, SIZE, SIZE);
|
|
|
|
cairo_set_source (cr, pattern);
|
|
cairo_paint (cr);
|
|
cairo_pattern_destroy (pattern);
|
|
|
|
return CAIRO_TEST_SUCCESS;
|
|
}
|
|
|
|
CAIRO_TEST (mesh_pattern_accuracy,
|
|
"Paint mesh pattern",
|
|
"mesh, pattern", /* keywords */
|
|
NULL, /* requirements */
|
|
SIZE, SIZE,
|
|
NULL, draw)
|