diff options
author | Vladimir Vukicevic <vladimirv@gmail.com> | 2006-08-16 16:04:24 -0700 |
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committer | Carl Worth <cworth@cworth.org> | 2006-08-17 13:35:15 -0700 |
commit | afb50580ce0eaefe466ff63a2e0e597f35317f6b (patch) | |
tree | 3ee085b010fa156809fb5d80be5b708b7d0e1f6e /test | |
parent | 540db69aefd9874d71af6102c5f9572288de09be (diff) | |
download | cairo-afb50580ce0eaefe466ff63a2e0e597f35317f6b.tar.gz |
Add src-clip test case to demonstrate bug with clipping applying to a source surface.
Diffstat (limited to 'test')
-rw-r--r-- | test/Makefile.am | 1 | ||||
-rw-r--r-- | test/src-clip-ref.png | bin | 0 -> 243 bytes | |||
-rw-r--r-- | test/src-clip.c | 100 |
3 files changed, 101 insertions, 0 deletions
diff --git a/test/Makefile.am b/test/Makefile.am index effa3219d..5b9e20ca4 100644 --- a/test/Makefile.am +++ b/test/Makefile.am @@ -66,6 +66,7 @@ set-source \ show-text-current-point \ source-clip \ source-surface-scale-paint \ +src-clip \ surface-finish-twice \ surface-pattern \ text-antialias-gray \ diff --git a/test/src-clip-ref.png b/test/src-clip-ref.png Binary files differnew file mode 100644 index 000000000..972f41d67 --- /dev/null +++ b/test/src-clip-ref.png diff --git a/test/src-clip.c b/test/src-clip.c new file mode 100644 index 000000000..7e576c2aa --- /dev/null +++ b/test/src-clip.c @@ -0,0 +1,100 @@ +/* + * Copyright © 2005 Mozilla Corporation + * + * 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 + * Mozilla Corporation not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Mozilla Corporation makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * MOZILLA CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL MOZILLA CORPORATION 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: Vladimir Vukicevic <vladimir@pobox.com> + */ + +#include <math.h> +#include "cairo-test.h" +#include <stdio.h> + +#define SIZE 40 + +static cairo_test_draw_function_t draw; + +cairo_test_t test = { + "src-clip", + "Test a leftover clip on a source surface not affecting compositing", + SIZE * 2, SIZE, + draw +}; + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *surf2; + cairo_t *cr2; + + /* cr: Fill the destination with our red background that should + * get covered + */ + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_paint (cr); + + surf2 = cairo_surface_create_similar (cairo_get_target (cr), CAIRO_CONTENT_COLOR_ALPHA, SIZE, SIZE); + cr2 = cairo_create (surf2); + + /* cr2: Fill temp surface with green */ + cairo_set_source_rgb (cr2, 0, 1, 0); + cairo_paint (cr2); + + /* cr2: Make a blue square in the middle */ + cairo_set_source_rgb (cr2, 0, 0, 2); + cairo_save (cr2); + cairo_new_path (cr2); + cairo_rectangle (cr2, 10, 10, SIZE-20, SIZE-20); + cairo_clip (cr2); + cairo_paint (cr2); + cairo_restore (cr2); + + /* If this is uncommented, the test works as expected, because this + * forces the clip to be reset on surf2. + */ + /* + cairo_new_path (cr2); + cairo_rectangle (cr2, 0, 0, 0, 0); + cairo_fill (cr2); + */ + + /* If this scale is commented out, the test displays + * the green-and-blue square on the left side of the result. + * + * The correct "pass" image is the green-and-blue square image stretched + * by 2x. With this scale, however, only the blue (clipped) portion + * of the src shows through. + */ + cairo_scale (cr, 2.0, 1.0); + + cairo_set_source_surface (cr, surf2, 0, 0); + cairo_paint (cr); + + cairo_destroy (cr2); + cairo_surface_destroy (surf2); + + return CAIRO_TEST_SUCCESS; +} + +int +main (void) +{ + return cairo_test (&test); +} |