| /* |
| * 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 Worth <cworth@cworth.org> |
| */ |
| |
| #include "cairo-test.h" |
| |
| #include <stdlib.h> |
| #include <stdio.h> |
| #include <errno.h> |
| |
| #define WIDTH 2 |
| #define HEIGHT 2 |
| |
| static cairo_status_t |
| read_png_from_file (void *closure, unsigned char *data, unsigned int length) |
| { |
| FILE *file = closure; |
| size_t bytes_read; |
| |
| bytes_read = fread (data, 1, length, file); |
| if (bytes_read != length) |
| return CAIRO_STATUS_READ_ERROR; |
| |
| return CAIRO_STATUS_SUCCESS; |
| } |
| |
| static cairo_test_status_t |
| draw (cairo_t *cr, int width, int height) |
| { |
| const cairo_test_context_t *ctx = cairo_test_get_context (cr); |
| char *filename; |
| FILE *file; |
| cairo_surface_t *surface; |
| cairo_status_t status; |
| |
| xasprintf (&filename, "%s/%s", ctx->srcdir, |
| "create-from-png-stream.ref.png"); |
| |
| file = fopen (filename, "rb"); |
| if (file == NULL) { |
| cairo_test_status_t ret; |
| |
| ret = CAIRO_TEST_FAILURE; |
| if (errno == ENOMEM) |
| ret = cairo_test_status_from_status (ctx, CAIRO_STATUS_NO_MEMORY); |
| |
| if (ret != CAIRO_TEST_NO_MEMORY) |
| cairo_test_log (ctx, "Error: failed to open file: %s\n", filename); |
| |
| free (filename); |
| return ret; |
| } |
| |
| surface = cairo_image_surface_create_from_png_stream (read_png_from_file, |
| file); |
| |
| fclose (file); |
| |
| status = cairo_surface_status (surface); |
| if (status) { |
| cairo_test_status_t ret; |
| |
| cairo_surface_destroy (surface); |
| |
| ret = cairo_test_status_from_status (ctx, status); |
| if (ret != CAIRO_TEST_NO_MEMORY) { |
| cairo_test_log (ctx, |
| "Error: failed to create surface from PNG: %s - %s\n", |
| filename, |
| cairo_status_to_string (status)); |
| } |
| |
| free (filename); |
| |
| return ret; |
| } |
| |
| free (filename); |
| |
| cairo_set_source_surface (cr, surface, 0, 0); |
| cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_NEAREST); |
| cairo_paint (cr); |
| |
| cairo_surface_destroy (surface); |
| |
| return CAIRO_TEST_SUCCESS; |
| } |
| |
| CAIRO_TEST (create_from_png_stream, |
| "Tests the creation of an image surface from a PNG using a FILE *", |
| "png", /* keywords */ |
| NULL, /* requirements */ |
| WIDTH, HEIGHT, |
| NULL, draw) |