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Diffstat (limited to 'test/filter-nearest-offset.c')
| -rw-r--r-- | test/filter-nearest-offset.c | 109 |
1 files changed, 0 insertions, 109 deletions
diff --git a/test/filter-nearest-offset.c b/test/filter-nearest-offset.c deleted file mode 100644 index 4df609702..000000000 --- a/test/filter-nearest-offset.c +++ /dev/null @@ -1,109 +0,0 @@ -/* - * 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 "cairo-test.h" - -#define STAMP_WIDTH 4 -#define STAMP_HEIGHT 4 -#define PAD 1 - -#define STEPS 10 - -#define IMAGE_WIDTH (PAD + STEPS * (STAMP_WIDTH + PAD) + PAD) -#define IMAGE_HEIGHT (PAD + STEPS * (STAMP_HEIGHT + PAD) + PAD) - -static cairo_test_status_t -draw (cairo_t *cr, int width, int height) -{ - cairo_surface_t *surface; - uint32_t data[STAMP_WIDTH * STAMP_HEIGHT] = { - 0xffffffff, 0xffffffff, 0xffff0000, 0xffff0000, - 0xffffffff, 0xffffffff, 0xffff0000, 0xffff0000, - - 0xff00ff00, 0xff00ff00, 0xff0000ff, 0xff0000ff, - 0xff00ff00, 0xff00ff00, 0xff0000ff, 0xff0000ff - }; - int i, j; - - /* fill with off-white to avoid a separate rgb24 ref image */ - cairo_save (cr); - cairo_set_source_rgb (cr, .7, .7, .7); - cairo_paint (cr); - cairo_restore (cr); - - /* Draw reference lines where the jump should be. */ - cairo_move_to (cr, PAD + STEPS / 2 * (STAMP_WIDTH + PAD), 0); - cairo_rel_line_to (cr, 0, IMAGE_HEIGHT); - cairo_move_to (cr, 0, PAD + STEPS / 2 * (STAMP_HEIGHT + PAD)); - cairo_rel_line_to (cr, IMAGE_WIDTH, 0); - cairo_set_line_width (cr, 2.0); - cairo_stroke (cr); - - surface = cairo_image_surface_create_for_data ((unsigned char *) data, - CAIRO_FORMAT_RGB24, - STAMP_WIDTH, - STAMP_HEIGHT, - STAMP_WIDTH * 4); - - for (j=0; j < STEPS; j++) { - double j_step; - - for (i=0; i < STEPS; i++) { - double i_step; - -#define GENERATE_REFERENCE_IMAGE 0 -#if GENERATE_REFERENCE_IMAGE - i_step = i >= STEPS / 2 ? 1 : 0; - j_step = j >= STEPS / 2 ? 1 : 0; -#else - i_step = i * 1.0 / STEPS; - j_step = j * 1.0 / STEPS; -#endif - - cairo_save (cr); - - cairo_set_source_surface (cr, surface, - PAD + i * (STAMP_WIDTH + PAD) + i_step, - PAD + j * (STAMP_HEIGHT + PAD) + j_step); - cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_NEAREST); - cairo_paint (cr); - - cairo_restore (cr); - } - } - - cairo_surface_finish (surface); /* data goes out of scope */ - cairo_surface_destroy (surface); - - return CAIRO_TEST_SUCCESS; -} - -CAIRO_TEST (filter_nearest_offset, - "Test sampling offset of CAIRO_FILTER_NEAREST" - "\nwrong sampling location for nearest-neighbor filter in libpixman and Render", - "filter", /* keywords */ - NULL, /* requirements */ - IMAGE_WIDTH, IMAGE_HEIGHT, - NULL, draw) |