From 43e2370b024f66d995c514fd53414d3d8588a481 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Mon, 3 Nov 2008 14:20:35 +0000 Subject: [test] Update extend-pad. extend-pad was not a clear demonstration of the EXTEND_PAD mode, so revamp it to show the filter extending a 4 pixel surface to cover the entire output. However, this hides a discrepancy with the vector surfaces that we cannot prevent the external renders from applying an interpolation to the border pixels, so we copy the original test to extend-pad-border to check the desired behaviour on boundary pixels. --- test/extend-pad-similar.c | 82 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 82 insertions(+) create mode 100644 test/extend-pad-similar.c (limited to 'test/extend-pad-similar.c') diff --git a/test/extend-pad-similar.c b/test/extend-pad-similar.c new file mode 100644 index 00000000..357252ac --- /dev/null +++ b/test/extend-pad-similar.c @@ -0,0 +1,82 @@ +/* + * Copyright © 2007 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: Behdad Esfahbod + */ + +#include +#include "cairo-test.h" +#include + +#define SIZE 90 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *surface; + cairo_t *cr_surface; + + /* Create a 4-pixel similar surface with my favorite four colors in each + * quadrant. */ + surface = cairo_surface_create_similar (cairo_get_group_target (cr), + CAIRO_CONTENT_COLOR, 2, 2); + cr_surface = cairo_create (surface); + cairo_surface_destroy (surface); + + /* upper-left = white */ + cairo_set_source_rgb (cr_surface, 1, 1, 1); + cairo_rectangle (cr_surface, 0, 0, 1, 1); + cairo_fill (cr_surface); + + /* upper-right = red */ + cairo_set_source_rgb (cr_surface, 1, 0, 0); + cairo_rectangle (cr_surface, 1, 0, 1, 1); + cairo_fill (cr_surface); + + /* lower-left = green */ + cairo_set_source_rgb (cr_surface, 0, 1, 0); + cairo_rectangle (cr_surface, 0, 1, 1, 1); + cairo_fill (cr_surface); + + /* lower-right = blue */ + cairo_set_source_rgb (cr_surface, 0, 0, 1); + cairo_rectangle (cr_surface, 1, 1, 1, 1); + cairo_fill (cr_surface); + + /* Now use extend pad to cover the entire surface with those 4 colors */ + cairo_set_source_surface (cr, cairo_get_target (cr_surface), + width/2 - 1, + height/2 - 1); + cairo_destroy (cr_surface); + cairo_pattern_set_extend (cairo_get_source (cr), CAIRO_EXTEND_PAD); + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (extend_pad_similar, + "Test CAIRO_EXTEND_PAD for similar surface patterns", + "extend", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) -- cgit v1.2.3