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/* -*- Mode: C; c-basic-offset: 2; -*- */
/* GdkPixbuf library - test loaders
*
* Copyright (C) 2014 Red Hat, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include "gdk-pixbuf/gdk-pixbuf.h"
#include "test-common.h"
#include <string.h>
#ifdef G_OS_UNIX
#include <fcntl.h>
#include <sys/mman.h>
#include <unistd.h>
#endif
#ifdef G_OS_UNIX
typedef struct {
void *buf;
gsize len;
} MappedBuf;
static void
destroy_buf_unmap (gpointer data)
{
MappedBuf *buf = data;
int r;
r = munmap (buf->buf, buf->len);
g_assert_cmpint (r, ==, 0);
g_free (buf);
}
#endif
static GdkPixbuf *
get_readonly_pixbuf (void)
{
GdkPixbuf *reference;
GdkPixbuf *result;
GBytes *bytes;
GError *error = NULL;
reference = gdk_pixbuf_new_from_file (g_test_get_filename (G_TEST_DIST, "test-image.png", NULL), &error);
g_assert_no_error (error);
#ifdef G_OS_UNIX
{
MappedBuf *buf;
int pagesize;
int pages;
int r;
int zero_fd;
gsize pixlen;
pagesize = sysconf (_SC_PAGESIZE);
g_assert_cmpint (pagesize, >, 0);
pixlen = gdk_pixbuf_get_byte_length (reference);
pages = pixlen / pagesize + 1;
buf = g_new0 (MappedBuf, 1);
buf->len = pages * pagesize;
zero_fd = open("/dev/zero", O_RDWR);
g_assert(zero_fd != -1);
buf->buf = mmap (NULL, buf->len, PROT_READ | PROT_WRITE, MAP_PRIVATE, zero_fd, 0);
g_assert (buf->buf != NULL);
close(zero_fd);
memcpy (buf->buf, gdk_pixbuf_get_pixels (reference), pixlen);
r = mprotect (buf->buf, buf->len, PROT_READ);
g_assert_cmpint (r, ==, 0);
bytes = g_bytes_new_with_free_func (buf->buf, buf->len, destroy_buf_unmap, buf);
}
#else
bytes = g_bytes_new (gdk_pixbuf_get_pixels (reference), gdk_pixbuf_get_byte_length (reference));
#endif
result = gdk_pixbuf_new_from_bytes (bytes,
gdk_pixbuf_get_colorspace (reference),
gdk_pixbuf_get_has_alpha (reference),
gdk_pixbuf_get_bits_per_sample (reference),
gdk_pixbuf_get_width (reference),
gdk_pixbuf_get_height (reference),
gdk_pixbuf_get_rowstride (reference));
g_object_unref (reference);
g_bytes_unref (bytes);
return result;
}
static void
test_mutate_readonly (void)
{
GdkPixbuf *src;
GdkPixbuf *dest;
if (!format_supported ("png"))
{
g_test_skip ("format not supported");
return;
}
src = get_readonly_pixbuf ();
gdk_pixbuf_scale (src, src,
0, 0,
gdk_pixbuf_get_width (src) / 4,
gdk_pixbuf_get_height (src) / 4,
0, 0, 0.5, 0.5,
GDK_INTERP_NEAREST);
g_object_unref (src);
src = get_readonly_pixbuf ();
dest = gdk_pixbuf_scale_simple (src,
gdk_pixbuf_get_width (src) / 4,
gdk_pixbuf_get_height (src) / 4,
GDK_INTERP_NEAREST);
g_object_unref (dest);
dest = gdk_pixbuf_composite_color_simple (src,
gdk_pixbuf_get_width (src) / 4,
gdk_pixbuf_get_height (src) / 4,
GDK_INTERP_NEAREST,
128,
8,
G_MAXUINT32,
G_MAXUINT32/2);
g_object_unref (dest);
dest = gdk_pixbuf_rotate_simple (src, 180);
g_object_unref (dest);
dest = gdk_pixbuf_flip (src, TRUE);
g_object_unref (dest);
dest = gdk_pixbuf_flip (src, FALSE);
g_object_unref (dest);
g_object_unref (src);
}
static void
test_read_pixel_bytes (void)
{
GdkPixbuf *src;
GBytes *bytes;
if (!format_supported ("png"))
{
g_test_skip ("format not supported");
return;
}
src = get_readonly_pixbuf ();
bytes = gdk_pixbuf_read_pixel_bytes (src);
g_object_unref (src);
g_bytes_unref (bytes);
src = get_readonly_pixbuf ();
/* Force a mutable conversion */
(void) gdk_pixbuf_get_pixels (src);
bytes = gdk_pixbuf_read_pixel_bytes (src);
g_object_unref (src);
g_bytes_unref (bytes);
}
int
main (int argc, char **argv)
{
g_test_init (&argc, &argv, NULL);
g_test_add_func ("/pixbuf/readonly/mutate", test_mutate_readonly);
g_test_add_func ("/pixbuf/readonly/readpixelbytes", test_read_pixel_bytes);
return g_test_run ();
}
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