Grcov report - degenerate-radial-gradient.c

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/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */

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/*

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 * Copyright 2010 Andrea Canciani

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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: Andrea Canciani <ranma42@gmail.com>

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*/

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#include "cairo-test.h"

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#define NUM_EXTEND 4

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#define HEIGHT 32

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#define WIDTH 32

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#define PAD 6

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static cairo_test_status_t

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

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    cairo_pattern_t *pattern;

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    unsigned int i, j;

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    cairo_extend_t extend[NUM_EXTEND] = {

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	CAIRO_EXTEND_NONE,

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	CAIRO_EXTEND_REPEAT,

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	CAIRO_EXTEND_REFLECT,

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	CAIRO_EXTEND_PAD

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};

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    cairo_test_paint_checkered (cr);

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    cairo_translate (cr, PAD, PAD);

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    for (i = 0; i < 3; i++) {

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        cairo_save (cr);

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

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	    cairo_reset_clip (cr);

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	    cairo_rectangle (cr, 0, 0, WIDTH, HEIGHT);

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	    cairo_clip (cr);

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	    if (i == 0)

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		pattern = cairo_pattern_create_radial (WIDTH/2, HEIGHT/2, 0, WIDTH/2, HEIGHT/2, 0);

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	    else if (i == 1)

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		pattern = cairo_pattern_create_radial (WIDTH/2, HEIGHT/2, 2*PAD, WIDTH/2, HEIGHT/2, 2*PAD);

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	    else if (i == 2)

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		pattern = cairo_pattern_create_radial (PAD, PAD, 0, WIDTH-PAD, HEIGHT-PAD, 0);

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	    cairo_pattern_add_color_stop_rgba (pattern, 0, 1, 0, 0, 1);

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	    cairo_pattern_add_color_stop_rgba (pattern, sqrt (1.0 / 2.0), 0, 1, 0, 0);

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	    cairo_pattern_add_color_stop_rgba (pattern, 1, 0, 0, 1, 0.5);

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	    cairo_pattern_set_extend (pattern, extend[j]);

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	    cairo_set_source (cr, pattern);

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	    cairo_paint (cr);

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	    cairo_pattern_destroy (pattern);

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	    cairo_translate (cr, WIDTH+PAD, 0);

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	cairo_restore (cr);

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	cairo_translate (cr, 0, HEIGHT+PAD);

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    return CAIRO_TEST_SUCCESS;

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CAIRO_TEST (degenerate_radial_gradient,

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	    "Tests degenerate radial gradients",

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	    "radial, pattern, extend", /* keywords */

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	    NULL, /* requirements */

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	    (WIDTH+PAD) * NUM_EXTEND + PAD, 3*(HEIGHT + PAD) + PAD,

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	    NULL, draw)