Grcov report - a1-mask-sample.c

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/*

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 * Copyright © 2008 Red Hat, Inc.

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 * Copyright © 2010 Intel Corporation

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 * Permission is hereby granted, free of charge, to any person

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 * obtaining a copy of this software and associated documentation

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 * files (the "Software"), to deal in the Software without

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 * restriction, including without limitation the rights to use, copy,

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 * modify, merge, publish, distribute, sublicense, and/or sell copies

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 * of the Software, and to permit persons to whom the Software is

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 * furnished to do so, subject to the following conditions:

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 * The above copyright notice and this permission notice shall be

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 * included in all copies or substantial portions of the Software.

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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,

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 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

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 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND

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 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS

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 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN

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 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN

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 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE

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 * SOFTWARE.

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 * Author: Carl D. Worth <cworth@cworth.org>

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 *         Chris Wilson <chris@chris-wilson.co.uk>

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*/

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#include "cairo-test.h"

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#define POINTS	10

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#define STEP	(1.0 / POINTS)

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#define PAD	1

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#define WIDTH	(PAD + POINTS * 2 + PAD)

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#define HEIGHT	(WIDTH)

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/* A single, opaque pixel */

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static const uint32_t black_pixel = 0xffffffff;

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static cairo_test_status_t

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3

draw (cairo_t *cr, int width, int height)

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    cairo_surface_t *surface;

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    cairo_pattern_t *mask;

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    int i, j;

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3

    surface = cairo_image_surface_create_for_data ((unsigned char *) &black_pixel,

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						   CAIRO_FORMAT_A8,

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						   1, 1, 4);

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3

    mask = cairo_pattern_create_for_surface (surface);

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3

    cairo_pattern_set_filter (mask, CAIRO_FILTER_NEAREST);

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3

    cairo_surface_destroy (surface);

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    /* Fill background white */

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3

    cairo_set_source_rgb (cr, 1, 1, 1);

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3

    cairo_paint (cr);

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3

    cairo_translate (cr, PAD, PAD);

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3

    cairo_set_source_rgb (cr, 0, 0, 0);

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    for (i = 0; i < POINTS; i++) {

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	for (j = 0; j < POINTS; j++) {

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	    cairo_matrix_t m;

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	    cairo_matrix_init_translate (&m,

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					 -(2 * i + i * STEP),

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					 -(2 * j + j * STEP));

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300

	    cairo_pattern_set_matrix (mask, &m);

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300

	    cairo_mask (cr, mask);

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3

    cairo_pattern_destroy (mask);

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3

    return CAIRO_TEST_SUCCESS;

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CAIRO_TEST (a1_mask_sample,

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	    "Test sample position when masking with FILTER_NEAREST",

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	    "image, alpha", /* keywords */

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	    "target=raster", /* requirements */

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	    WIDTH, HEIGHT,

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	    NULL, draw)