/* image-type.c
- *
- * Copyright (C) 1998, 2000, 2004, 2006 Free Software Foundation, Inc.
- *
+ *
+ * Copyright (C) 1998, 2000, 2004, 2006, 2011 Free Software Foundation, Inc.
+ *
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 3, 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
* Lesser General Public License for more details.
- *
+ *
* You should have received a copy of the GNU Lesser General Public
* License along with this software; see the file COPYING.LESSER. If
* not, write to the Free Software Foundation, Inc., 51 Franklin
static scm_t_bits image_tag;
-struct image {
+struct image
+{
int width, height;
char *pixels;
/* Step 4: Finish the initialization.
*/
image->name = name;
- image->pixels = scm_gc_malloc (width * height, "image pixels");
+ image->pixels = scm_gc_malloc_pointerless (width * height, "image pixels");
return smob;
}
return SCM_UNSPECIFIED;
}
-static SCM
-mark_image (SCM image_smob)
-{
- /* Mark the image's name and update function. */
- struct image *image = (struct image *) SCM_SMOB_DATA (image_smob);
-
- scm_gc_mark (image->name);
- return image->update_func;
-}
-
-static size_t
-free_image (SCM image_smob)
-{
- struct image *image = (struct image *) SCM_SMOB_DATA (image_smob);
-
- scm_gc_free (image->pixels, image->width * image->height, "image pixels");
- scm_gc_free (image, sizeof (struct image), "image");
-
- return 0;
-}
-
static int
print_image (SCM image_smob, SCM port, scm_print_state *pstate)
{
init_image_type (void)
{
image_tag = scm_make_smob_type ("image", sizeof (struct image));
- scm_set_smob_mark (image_tag, mark_image);
- scm_set_smob_free (image_tag, free_image);
scm_set_smob_print (image_tag, print_image);
scm_c_define_gsubr ("clear-image", 1, 0, 0, clear_image);