| /* |
| * 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> |
| |
| #define WIDTH 2 |
| #define HEIGHT 2 |
| |
| static cairo_status_t |
| no_memory_error (void *closure, unsigned char *data, unsigned int size) |
| { |
| return CAIRO_STATUS_NO_MEMORY; |
| } |
| |
| static cairo_status_t |
| read_error (void *closure, unsigned char *data, unsigned int size) |
| { |
| return CAIRO_STATUS_READ_ERROR; |
| } |
| |
| 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; |
| cairo_surface_t *surface; |
| |
| xasprintf (&filename, "%s/%s", ctx->srcdir, |
| "create-from-png.ref.png"); |
| |
| surface = cairo_image_surface_create_from_png (filename); |
| if (cairo_surface_status (surface)) { |
| cairo_test_status_t result; |
| |
| result = cairo_test_status_from_status (ctx, |
| cairo_surface_status (surface)); |
| if (result == CAIRO_TEST_FAILURE) { |
| cairo_test_log (ctx, "Error reading PNG image %s: %s\n", |
| filename, |
| cairo_status_to_string (cairo_surface_status (surface))); |
| } |
| |
| free (filename); |
| return result; |
| } |
| |
| 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); |
| |
| free (filename); |
| return CAIRO_TEST_SUCCESS; |
| } |
| |
| static cairo_test_status_t |
| preamble (cairo_test_context_t *ctx) |
| { |
| char *filename; |
| cairo_surface_t *surface; |
| cairo_status_t status; |
| cairo_test_status_t result = CAIRO_TEST_SUCCESS; |
| |
| surface = cairo_image_surface_create_from_png ("___THIS_FILE_DOES_NOT_EXIST___"); |
| if (cairo_surface_status (surface) != CAIRO_STATUS_FILE_NOT_FOUND) { |
| result = cairo_test_status_from_status (ctx, |
| cairo_surface_status (surface)); |
| if (result == CAIRO_TEST_FAILURE) { |
| cairo_test_log (ctx, "Error: expected \"file not found\", but got: %s\n", |
| cairo_status_to_string (cairo_surface_status (surface))); |
| } |
| } |
| cairo_surface_destroy (surface); |
| if (result != CAIRO_TEST_SUCCESS) |
| return result; |
| |
| surface = cairo_image_surface_create_from_png_stream (no_memory_error, NULL); |
| if (cairo_surface_status (surface) != CAIRO_STATUS_NO_MEMORY) { |
| result = cairo_test_status_from_status (ctx, |
| cairo_surface_status (surface)); |
| if (result == CAIRO_TEST_FAILURE) { |
| cairo_test_log (ctx, "Error: expected \"out of memory\", but got: %s\n", |
| cairo_status_to_string (cairo_surface_status (surface))); |
| } |
| } |
| cairo_surface_destroy (surface); |
| if (result != CAIRO_TEST_SUCCESS) |
| return result; |
| |
| surface = cairo_image_surface_create_from_png_stream (read_error, NULL); |
| if (cairo_surface_status (surface) != CAIRO_STATUS_READ_ERROR) { |
| result = cairo_test_status_from_status (ctx, |
| cairo_surface_status (surface)); |
| if (result == CAIRO_TEST_FAILURE) { |
| cairo_test_log (ctx, "Error: expected \"read error\", but got: %s\n", |
| cairo_status_to_string (cairo_surface_status (surface))); |
| } |
| } |
| cairo_surface_destroy (surface); |
| if (result != CAIRO_TEST_SUCCESS) |
| return result; |
| |
| /* cheekily test error propagation from the user write funcs as well ... */ |
| xasprintf (&filename, "%s/%s", ctx->srcdir, |
| "create-from-png.ref.png"); |
| |
| surface = cairo_image_surface_create_from_png (filename); |
| if (cairo_surface_status (surface)) { |
| result = cairo_test_status_from_status (ctx, |
| cairo_surface_status (surface)); |
| if (result == CAIRO_TEST_FAILURE) { |
| cairo_test_log (ctx, "Error reading PNG image %s: %s\n", |
| filename, |
| cairo_status_to_string (cairo_surface_status (surface))); |
| } |
| } else { |
| status = cairo_surface_write_to_png_stream (surface, |
| (cairo_write_func_t) no_memory_error, |
| NULL); |
| if (status != CAIRO_STATUS_NO_MEMORY) { |
| result = cairo_test_status_from_status (ctx, status); |
| if (result == CAIRO_TEST_FAILURE) { |
| cairo_test_log (ctx, "Error: expected \"out of memory\", but got: %s\n", |
| cairo_status_to_string (status)); |
| } |
| } |
| |
| status = cairo_surface_write_to_png_stream (surface, |
| (cairo_write_func_t) read_error, |
| NULL); |
| if (status != CAIRO_STATUS_READ_ERROR) { |
| result = cairo_test_status_from_status (ctx, status); |
| if (result == CAIRO_TEST_FAILURE) { |
| cairo_test_log (ctx, "Error: expected \"read error\", but got: %s\n", |
| cairo_status_to_string (status)); |
| } |
| } |
| |
| /* and check that error has not propagated to the surface */ |
| if (cairo_surface_status (surface)) { |
| result = cairo_test_status_from_status (ctx, |
| cairo_surface_status (surface)); |
| if (result == CAIRO_TEST_FAILURE) { |
| cairo_test_log (ctx, "Error: user write error propagated to surface: %s", |
| cairo_status_to_string (cairo_surface_status (surface))); |
| } |
| } |
| } |
| cairo_surface_destroy (surface); |
| free (filename); |
| if (result != CAIRO_TEST_SUCCESS) |
| return result; |
| |
| /* check that loading alpha/opaque PNGs generate the correct surfaces */ |
| xasprintf (&filename, "%s/%s", ctx->srcdir, |
| "create-from-png.alpha.ref.png"); |
| surface = cairo_image_surface_create_from_png (filename); |
| if (cairo_surface_status (surface)) { |
| result = cairo_test_status_from_status (ctx, |
| cairo_surface_status (surface)); |
| if (result == CAIRO_TEST_FAILURE) { |
| cairo_test_log (ctx, "Error reading PNG image %s: %s\n", |
| filename, |
| cairo_status_to_string (cairo_surface_status (surface))); |
| } |
| } else if (cairo_image_surface_get_format (surface) != CAIRO_FORMAT_ARGB32) { |
| cairo_test_log (ctx, "Error reading PNG image %s: did not create an ARGB32 image\n", |
| filename); |
| result = CAIRO_TEST_FAILURE; |
| } |
| free (filename); |
| cairo_surface_destroy (surface); |
| if (result != CAIRO_TEST_SUCCESS) |
| return result; |
| |
| xasprintf (&filename, "%s/%s", ctx->srcdir, |
| "create-from-png.ref.png"); |
| surface = cairo_image_surface_create_from_png (filename); |
| if (cairo_surface_status (surface)) { |
| result = cairo_test_status_from_status (ctx, |
| cairo_surface_status (surface)); |
| if (result == CAIRO_TEST_FAILURE) { |
| cairo_test_log (ctx, "Error reading PNG image %s: %s\n", |
| filename, |
| cairo_status_to_string (cairo_surface_status (surface))); |
| } |
| } else if (cairo_image_surface_get_format (surface) != CAIRO_FORMAT_RGB24) { |
| cairo_test_log (ctx, "Error reading PNG image %s: did not create an RGB24 image\n", |
| filename); |
| result = CAIRO_TEST_FAILURE; |
| } |
| free (filename); |
| cairo_surface_destroy (surface); |
| if (result != CAIRO_TEST_SUCCESS) |
| return result; |
| |
| /* check paletted PNGs */ |
| xasprintf (&filename, "%s/%s", ctx->srcdir, |
| "create-from-png.indexed-alpha.ref.png"); |
| surface = cairo_image_surface_create_from_png (filename); |
| if (cairo_surface_status (surface)) { |
| result = cairo_test_status_from_status (ctx, |
| cairo_surface_status (surface)); |
| if (result == CAIRO_TEST_FAILURE) { |
| cairo_test_log (ctx, "Error reading PNG image %s: %s\n", |
| filename, |
| cairo_status_to_string (cairo_surface_status (surface))); |
| } |
| } else if (cairo_image_surface_get_format (surface) != CAIRO_FORMAT_ARGB32) { |
| cairo_test_log (ctx, "Error reading PNG image %s: did not create an ARGB32 image\n", |
| filename); |
| result = CAIRO_TEST_FAILURE; |
| } |
| free (filename); |
| cairo_surface_destroy (surface); |
| if (result != CAIRO_TEST_SUCCESS) |
| return result; |
| |
| xasprintf (&filename, "%s/%s", ctx->srcdir, |
| "create-from-png.indexed.ref.png"); |
| surface = cairo_image_surface_create_from_png (filename); |
| if (cairo_surface_status (surface)) { |
| result = cairo_test_status_from_status (ctx, |
| cairo_surface_status (surface)); |
| if (result == CAIRO_TEST_FAILURE) { |
| cairo_test_log (ctx, "Error reading PNG image %s: %s\n", |
| filename, |
| cairo_status_to_string (cairo_surface_status (surface))); |
| } |
| } else if (cairo_image_surface_get_format (surface) != CAIRO_FORMAT_RGB24) { |
| cairo_test_log (ctx, "Error reading PNG image %s: did not create an RGB24 image\n", |
| filename); |
| result = CAIRO_TEST_FAILURE; |
| } |
| free (filename); |
| cairo_surface_destroy (surface); |
| if (result != CAIRO_TEST_SUCCESS) |
| return result; |
| |
| /* check grayscale PNGs */ |
| xasprintf (&filename, "%s/%s", ctx->srcdir, |
| "create-from-png.gray-alpha.ref.png"); |
| surface = cairo_image_surface_create_from_png (filename); |
| if (cairo_surface_status (surface)) { |
| result = cairo_test_status_from_status (ctx, |
| cairo_surface_status (surface)); |
| if (result == CAIRO_TEST_FAILURE) { |
| cairo_test_log (ctx, "Error reading PNG image %s: %s\n", |
| filename, |
| cairo_status_to_string (cairo_surface_status (surface))); |
| } |
| } else if (cairo_image_surface_get_format (surface) != CAIRO_FORMAT_ARGB32) { |
| cairo_test_log (ctx, "Error reading PNG image %s: did not create an ARGB32 image\n", |
| filename); |
| result = CAIRO_TEST_FAILURE; |
| } |
| free (filename); |
| cairo_surface_destroy (surface); |
| if (result != CAIRO_TEST_SUCCESS) |
| return result; |
| |
| xasprintf (&filename, "%s/%s", ctx->srcdir, |
| "create-from-png.gray.ref.png"); |
| surface = cairo_image_surface_create_from_png (filename); |
| if (cairo_surface_status (surface)) { |
| result = cairo_test_status_from_status (ctx, |
| cairo_surface_status (surface)); |
| if (result == CAIRO_TEST_FAILURE) { |
| cairo_test_log (ctx, "Error reading PNG image %s: %s\n", |
| filename, |
| cairo_status_to_string (cairo_surface_status (surface))); |
| } |
| } else if (cairo_image_surface_get_format (surface) != CAIRO_FORMAT_RGB24) { |
| cairo_test_log (ctx, "Error reading PNG image %s: did not create an RGB24 image\n", |
| filename); |
| result = CAIRO_TEST_FAILURE; |
| } |
| free (filename); |
| cairo_surface_destroy (surface); |
| |
| return result; |
| } |
| |
| CAIRO_TEST (create_from_png, |
| "Tests the creation of an image surface from a PNG file", |
| "png", /* keywords */ |
| NULL, /* requirements */ |
| WIDTH, HEIGHT, |
| preamble, draw) |