| /* |
| * Copyright 2008 Kai-Uwe Behrmann |
| * |
| * 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 |
| * Kai-Uwe Behrmann not be used in advertising or publicity pertaining to |
| * distribution of the software without specific, written prior |
| * permission. Kai-Uwe Behrmann makes no representations about the |
| * suitability of this software for any purpose. It is provided "as |
| * is" without express or implied warranty. |
| * |
| * KAI_UWE BEHRMANN DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS |
| * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND |
| * FITNESS, IN NO EVENT SHALL KAI_UWE BEHRMANN 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: Kai-Uwe Behrmann <ku.b@gmx.de> |
| * Chris Wilson <chris@chris-wilson.co.uk> |
| */ |
| |
| #include "cairo-test.h" |
| |
| static const char png_filename[] = "romedalen.png"; |
| |
| static cairo_surface_t * |
| create_mask (cairo_t *dst, int width, int height) |
| { |
| cairo_surface_t *mask; |
| cairo_t *cr; |
| |
| mask = cairo_image_surface_create (CAIRO_FORMAT_A8, width, height); |
| cr = cairo_create (mask); |
| cairo_surface_destroy (mask); |
| |
| cairo_set_operator (cr, CAIRO_OPERATOR_OVER); |
| cairo_rectangle (cr, width/4, height/4, width/2, height/2); |
| cairo_fill (cr); |
| |
| mask = cairo_surface_reference (cairo_get_target (cr)); |
| cairo_destroy (cr); |
| |
| return mask; |
| } |
| |
| static cairo_test_status_t |
| draw (cairo_t *cr, int width, int height) |
| { |
| const cairo_test_context_t *ctx = cairo_test_get_context (cr); |
| cairo_surface_t *image, *mask; |
| |
| image = cairo_test_create_surface_from_png (ctx, png_filename); |
| mask = create_mask (cr, 40, 40); |
| |
| /* opaque background */ |
| cairo_paint (cr); |
| |
| /* center */ |
| cairo_translate (cr, |
| (width - cairo_image_surface_get_width (image)) / 2., |
| (height - cairo_image_surface_get_height (image)) / 2.); |
| |
| /* rotate 30 degree around the center */ |
| cairo_translate (cr, width/2., height/2.); |
| cairo_rotate (cr, -30 * 2 * M_PI / 360); |
| cairo_translate (cr, -width/2., -height/2.); |
| |
| /* place the image on our surface */ |
| cairo_set_source_surface (cr, image, 0, 0); |
| |
| /* reset the drawing matrix */ |
| cairo_identity_matrix (cr); |
| |
| /* fill nicely */ |
| cairo_scale (cr, width / 40., height / 40.); |
| |
| /* apply the mask */ |
| cairo_mask_surface (cr, mask, 0, 0); |
| |
| cairo_surface_destroy (mask); |
| cairo_surface_destroy (image); |
| |
| return CAIRO_TEST_SUCCESS; |
| } |
| |
| CAIRO_TEST (mask_transformed_image, |
| "Test that cairo_mask() is affected properly by the CTM and not the image", |
| "mask", /* keywords */ |
| NULL, /* requirements */ |
| 80, 80, |
| NULL, draw) |