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[test] Update surface-pattern test to include transformations

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The surface-pattern test was very naive, painting a surface pattern
repeated at identity size.  With the new test, the surface pattern
is scaled and rotated.  This reveals a serious bug in the PS backend.
This commit is contained in:
Behdad Esfahbod 2007-02-22 16:03:47 -05:00
parent 7c39276366
commit c87edd9e10
4 changed files with 43 additions and 51 deletions
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94
test/surface-pattern.c
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@ -1,36 +1,15 @@
/*
* Copyright © 2005 Red Hat, Inc.
*
* Permission to use, copy, modify, distribute, and sell this software
* and its documentation for any purpose is hereby granted without
* fee, provided that the above copyright notice appear in all copies
* and that both that copyright notice and this permission notice
* appear in supporting documentation, and that the name of
* Red Hat, Inc. not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior
* permission. Red Hat, Inc. makes no representations about the
* suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL,
* INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
* IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* Author: Carl D. Worth <cworth@cworth.org>
*/
#include <math.h>
#include "cairo-test.h"
#include <stdio.h>
#define SIZE 140
static cairo_test_draw_function_t draw;
cairo_test_t test = {
"surface-pattern",
"Tests use of a surface pattern",
36, 36,
"Test transformed repeated surface patterns",
SIZE, SIZE,
draw
};
@ -38,35 +17,48 @@ static cairo_test_status_t
draw (cairo_t *cr, int width, int height)
{
cairo_surface_t *surface;
cairo_t *cr2;
cairo_pattern_t *pattern;
surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
6, 6);
cairo_t * cr_surface;
int surface_size = 6;
cr2 = cairo_create (surface);
{
cairo_rectangle (cr2, 0, 0, 3, 3);
cairo_rectangle (cr2, 3, 3, 3, 3);
cairo_set_source_rgb (cr2, 1, 1, 0);
cairo_fill (cr2);
cairo_rectangle (cr2, 3, 0, 3, 3);
cairo_rectangle (cr2, 0, 3, 3, 3);
cairo_set_source_rgb (cr2, 0, 0, 1);
cairo_fill (cr2);
}
cairo_destroy (cr2);
pattern = cairo_pattern_create_for_surface (surface);
cairo_pattern_set_extend (pattern, CAIRO_EXTEND_REPEAT);
cairo_set_source (cr, pattern);
cairo_rectangle (cr, 0, 0, width, height);
cairo_set_source_rgb (cr, 0, 0, 0);
cairo_rectangle (cr, 0, 0, SIZE, SIZE);
cairo_fill (cr);
cairo_pattern_destroy (pattern);
/* 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_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_destroy (cr_surface);
cairo_scale (cr, 10, 10);
cairo_rotate (cr, 1.);
cairo_set_source_surface (cr, surface, 1.5, 1.5);
cairo_surface_destroy (surface);
cairo_pattern_set_extend (cairo_get_source (cr), CAIRO_EXTEND_REPEAT);
cairo_paint (cr);
return CAIRO_TEST_SUCCESS;
}