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Diffstat (limited to 'test/surface-pattern-scale-up.c')
| -rw-r--r-- | test/surface-pattern-scale-up.c | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/test/surface-pattern-scale-up.c b/test/surface-pattern-scale-up.c new file mode 100644 index 000000000..0d71ba150 --- /dev/null +++ b/test/surface-pattern-scale-up.c @@ -0,0 +1,93 @@ +/* + * 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 <behdad@behdad.org> + */ + +/* Exhibits nasty behaviour with GS due as their /Interpolate implementation + * does not function for rotated images. */ + +#include "cairo-test.h" +#include <math.h> +#include <stdio.h> + +#define SIZE 100 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *surface; + cairo_t * cr_surface; + int surface_size = 6; + + /* Fill the background with grey, so that it's easily visible when + * things get overdrawn */ + cairo_set_source_rgb (cr, 0.5, 0.5, 0.5); + cairo_paint (cr); + + /* Create an image surface with my favorite four colors in each + * quadrant. */ + surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, + surface_size, surface_size); + cr_surface = cairo_create (surface); + cairo_surface_destroy (surface); + + cairo_set_source_rgb (cr_surface, 1, 1, 1); + cairo_rectangle (cr_surface, + 0, 0, + surface_size / 2, surface_size / 2); + cairo_fill (cr_surface); + cairo_set_source_rgb (cr_surface, 1, 0, 0); + cairo_rectangle (cr_surface, + surface_size / 2, 0, + surface_size / 2, surface_size / 2); + cairo_fill (cr_surface); + cairo_set_source_rgb (cr_surface, 0, 1, 0); + cairo_rectangle (cr_surface, + 0, surface_size / 2, + surface_size / 2, surface_size / 2); + cairo_fill (cr_surface); + cairo_set_source_rgb (cr_surface, 0, 0, 1); + cairo_rectangle (cr_surface, + surface_size / 2, surface_size / 2, + surface_size / 2, surface_size / 2); + cairo_fill (cr_surface); + + cairo_scale (cr, 10, 10); + cairo_rotate (cr, 1.); + cairo_set_source_surface (cr, cairo_get_target (cr_surface), 4, -4.5); + cairo_destroy (cr_surface); + + cairo_pattern_set_extend (cairo_get_source (cr), CAIRO_EXTEND_NONE); + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (surface_pattern_scale_up, + "Test scaled-up transformed not-repeated surface patterns" + "\nFails xlib backend (with argb32) with inexplicable alpha in result", + "transform", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) |