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c13a09ddb4
Detect when we successfully encode the JPEG data from the mime-type by using a completely image.
115 lines
3.3 KiB
C
115 lines
3.3 KiB
C
/*
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* Copyright © 2008 Chris Wilson
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*
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* Permission to use, copy, modify, distribute, and sell this software
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* and its documentation for any purpose is hereby granted without
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* fee, provided that the above copyright notice appear in all copies
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* and that both that copyright notice and this permission notice
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* appear in supporting documentation, and that the name of
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* Chris Wilson not be used in advertising or publicity pertaining to
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* distribution of the software without specific, written prior
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* permission. Chris Wilson makes no representations about the
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* suitability of this software for any purpose. It is provided "as
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* is" without express or implied warranty.
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*
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* CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
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* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL,
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* INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
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* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
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* IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* Author: Chris Wilson <chris@chris-wilson.co.uk>
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*/
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#include "cairo-test.h"
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#include <stdio.h>
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#include <errno.h>
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/* Basic test to exercise the new mime-data embedding. */
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static cairo_status_t
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read_jpg_file (const cairo_test_context_t *ctx,
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unsigned char **data_out,
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unsigned int *length_out)
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{
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/* Deliberately use a non-matching jpeg image, so that we can identify
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* when the JPEG representation is used in preference to the image
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* surface.
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*/
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const char jpg_filename[] = "scarab.jpg";
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FILE *file;
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unsigned char *buf;
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unsigned int len;
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file = fopen (jpg_filename, "rb");
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if (file == NULL) {
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char filename[4096];
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/* try again with srcdir */
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snprintf (filename, sizeof (filename),
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"%s/%s", ctx->srcdir, jpg_filename);
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file = fopen (filename, "rb");
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}
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if (file == NULL) {
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switch (errno) {
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case ENOMEM:
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return CAIRO_STATUS_NO_MEMORY;
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default:
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return CAIRO_STATUS_FILE_NOT_FOUND;
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}
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}
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fseek (file, 0, SEEK_END);
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len = ftell (file);
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fseek (file, 0, SEEK_SET);
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buf = xmalloc (len);
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*length_out = fread (buf, 1, len, file);
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fclose (file);
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if (*length_out != len) {
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free (buf);
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return CAIRO_STATUS_READ_ERROR;
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}
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*data_out = buf;
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return CAIRO_STATUS_SUCCESS;
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}
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static cairo_test_status_t
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draw (cairo_t *cr, int width, int height)
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{
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const cairo_test_context_t *ctx = cairo_test_get_context (cr);
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cairo_surface_t *image;
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unsigned char *jpg_data;
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unsigned int jpg_len;
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cairo_status_t status;
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status = read_jpg_file (ctx, &jpg_data, &jpg_len);
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if (status) {
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return cairo_test_status_from_status (ctx, status);
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}
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image = cairo_test_create_surface_from_png (ctx, "romedalen.png");
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status = cairo_surface_set_mime_data (image, CAIRO_MIME_TYPE_JPEG,
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jpg_data, jpg_len, free);
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if (status) {
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cairo_surface_destroy (image);
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return cairo_test_status_from_status (ctx, status);
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}
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cairo_set_source_surface (cr, image, 0, 0);
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cairo_surface_destroy (image);
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cairo_paint (cr);
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return CAIRO_TEST_SUCCESS;
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}
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CAIRO_TEST (mime_data,
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"Check that the mime-data embedding works",
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"jpeg, api", /* keywords */
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NULL, /* requirements */
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10, 10,
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NULL, draw)
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