diff options
Diffstat (limited to 'libs/cairo-1.16.0/test/create-from-png.c')
| -rw-r--r-- | libs/cairo-1.16.0/test/create-from-png.c | 320 |
1 files changed, 320 insertions, 0 deletions
diff --git a/libs/cairo-1.16.0/test/create-from-png.c b/libs/cairo-1.16.0/test/create-from-png.c new file mode 100644 index 0000000..2ca1fa2 --- /dev/null +++ b/libs/cairo-1.16.0/test/create-from-png.c @@ -0,0 +1,320 @@ +/* + * 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/reference/%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; + } + + /* Pretend we modify the surface data (which detaches the PNG mime data) */ + cairo_surface_flush (surface); + cairo_surface_mark_dirty (surface); + + 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; + char *path; + 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 (&path, "%s/reference", ctx->srcdir); + xasprintf (&filename, "%s/%s", path, "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 */ + /* TODO: Avoid using target-specific references as sample images */ + xasprintf (&filename, "%s/%s", path, "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", path, "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 */ + /* TODO: Avoid using target-specific references as sample images */ + xasprintf (&filename, "%s/%s", path, "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; + + /* TODO: Avoid using target-specific references as sample images */ + xasprintf (&filename, "%s/%s", path, "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 */ + /* TODO: Avoid using target-specific references as sample images */ + xasprintf (&filename, "%s/%s", path, "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; + + /* TODO: Avoid using target-specific references as sample images */ + xasprintf (&filename, "%s/%s", path, "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); + + free (path); + + 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) |