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/a1-image-sample.c | 73 ++++++++++++++++++++++++++++++++ 1 file changed, 73 insertions(+) create mode 100644 libs/cairo-1.16.0/test/a1-image-sample.c (limited to 'libs/cairo-1.16.0/test/a1-image-sample.c') diff --git a/libs/cairo-1.16.0/test/a1-image-sample.c b/libs/cairo-1.16.0/test/a1-image-sample.c new file mode 100644 index 0000000..3c349af --- /dev/null +++ b/libs/cairo-1.16.0/test/a1-image-sample.c @@ -0,0 +1,73 @@ +/* + * Copyright © 2008 Red Hat, Inc. + * + * 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: Carl D. Worth + */ + +#include "cairo-test.h" + +#define POINTS 10 +#define STEP (1.0 / POINTS) +#define PAD 1 +#define WIDTH (PAD + POINTS * 2 + PAD) +#define HEIGHT (WIDTH) + +/* A single, black pixel */ +static const uint32_t black_pixel = 0xff000000; + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + int i, j; + cairo_surface_t *surface; + + surface = cairo_image_surface_create_for_data ((unsigned char *) &black_pixel, + CAIRO_FORMAT_ARGB32, + 1, 1, 4); + + /* Fill background white */ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_translate (cr, PAD, PAD); + + for (i = 0; i < POINTS; i++) + for (j = 0; j < POINTS; j++) { + cairo_set_source_surface (cr, surface, + 2 * i + i * STEP, 2 * j + j * STEP); + cairo_pattern_set_filter (cairo_get_source (cr), + CAIRO_FILTER_NEAREST); + cairo_paint (cr); + } + + cairo_surface_destroy (surface); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (a1_image_sample, + "Test sample position when drawing images with FILTER_NEAREST", + "image, alpha", /* keywords */ + "target=raster", /* requirements */ + WIDTH, HEIGHT, + NULL, draw) -- cgit v1.2.1