From 530ffd0b7d3c39757b20f00716e486b5caf89aff Mon Sep 17 00:00:00 2001 From: sanine Date: Wed, 12 Oct 2022 12:03:23 -0500 Subject: add cairo --- libs/cairo-1.16.0/test/mask-transformed-image.c | 96 +++++++++++++++++++++++++ 1 file changed, 96 insertions(+) create mode 100644 libs/cairo-1.16.0/test/mask-transformed-image.c (limited to 'libs/cairo-1.16.0/test/mask-transformed-image.c') diff --git a/libs/cairo-1.16.0/test/mask-transformed-image.c b/libs/cairo-1.16.0/test/mask-transformed-image.c new file mode 100644 index 0000000..13c8fe7 --- /dev/null +++ b/libs/cairo-1.16.0/test/mask-transformed-image.c @@ -0,0 +1,96 @@ +/* + * 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 + * Chris Wilson + */ + +#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) -- cgit v1.2.1