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/* cairo - a vector graphics library with display and print output
*
* Copyright © 2005 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it either under the terms of the GNU Lesser General Public
* License version 2.1 as published by the Free Software Foundation
* (the "LGPL") or, at your option, under the terms of the Mozilla
* Public License Version 1.1 (the "MPL"). If you do not alter this
* notice, a recipient may use your version of this file under either
* the MPL or the LGPL.
*
* You should have received a copy of the LGPL along with this library
* in the file COPYING-LGPL-2.1; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
* You should have received a copy of the MPL along with this library
* in the file COPYING-MPL-1.1
*
* The contents of this file are subject to the Mozilla Public License
* Version 1.1 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
* OF ANY KIND, either express or implied. See the LGPL or the MPL for
* the specific language governing rights and limitations.
*
* The Original Code is the cairo graphics library.
*
* The Initial Developer of the Original Code is Red Hat, Inc.
*
* Contributor(s):
* Carl D. Worth <cworth@cworth.org>
*/
#include "cairoint.h"
/**
* cairo_debug_reset_static_data:
*
* Resets all static data within cairo to its original state,
* (ie. identical to the state at the time of program invocation). For
* example, all caches within cairo will be flushed empty.
*
* This function is intended to be useful when using memory-checking
* tools such as valgrind. When valgrind's memcheck analyzes a
* cairo-using program without a call to cairo_debug_reset_static_data(),
* it will report all data reachable via cairo's static objects as
* "still reachable". Calling cairo_debug_reset_static_data() just prior
* to program termination will make it easier to get squeaky clean
* reports from valgrind.
*
* WARNING: It is only safe to call this function when there are no
* active cairo objects remaining, (ie. the appropriate destroy
* functions have been called as necessary). If there are active cairo
* objects, this call is likely to cause a crash, (eg. an assertion
* failure due to a hash table being destroyed when non-empty).
**/
void
cairo_debug_reset_static_data (void)
{
CAIRO_MUTEX_INITIALIZE ();
_cairo_scaled_font_map_destroy ();
_cairo_toy_font_face_reset_static_data ();
#if CAIRO_HAS_FT_FONT
_cairo_ft_font_reset_static_data ();
#endif
_cairo_intern_string_reset_static_data ();
_cairo_scaled_font_reset_static_data ();
_cairo_pattern_reset_static_data ();
_cairo_clip_reset_static_data ();
#if CAIRO_HAS_DRM_SURFACE
_cairo_drm_device_reset_static_data ();
#endif
CAIRO_MUTEX_FINALIZE ();
}
#if HAVE_VALGRIND
void
_cairo_debug_check_image_surface_is_defined (const cairo_surface_t *surface)
{
const cairo_image_surface_t *image = (cairo_image_surface_t *) surface;
const uint8_t *bits;
int row, width;
if (surface == NULL)
return;
if (! RUNNING_ON_VALGRIND)
return;
bits = image->data;
switch (image->format) {
case CAIRO_FORMAT_A1:
width = (image->width + 7)/8;
break;
case CAIRO_FORMAT_A8:
width = image->width;
break;
case CAIRO_FORMAT_RGB24:
case CAIRO_FORMAT_ARGB32:
width = image->width*4;
break;
default:
/* XXX compute width from pixman bpp */
return;
}
for (row = 0; row < image->height; row++) {
VALGRIND_CHECK_MEM_IS_DEFINED (bits, width);
/* and then silence any future valgrind warnings */
VALGRIND_MAKE_MEM_DEFINED (bits, width);
bits += image->stride;
}
}
#endif
#if 0
void
_cairo_image_surface_write_to_ppm (cairo_image_surface_t *isurf, const char *fn)
{
char *fmt;
if (isurf->format == CAIRO_FORMAT_ARGB32 || isurf->format == CAIRO_FORMAT_RGB24)
fmt = "P6";
else if (isurf->format == CAIRO_FORMAT_A8)
fmt = "P5";
else
return;
FILE *fp = fopen(fn, "wb");
if (!fp)
return;
fprintf (fp, "%s %d %d 255\n", fmt,isurf->width, isurf->height);
for (int j = 0; j < isurf->height; j++) {
unsigned char *row = isurf->data + isurf->stride * j;
for (int i = 0; i < isurf->width; i++) {
if (isurf->format == CAIRO_FORMAT_ARGB32 || isurf->format == CAIRO_FORMAT_RGB24) {
unsigned char r = *row++;
unsigned char g = *row++;
unsigned char b = *row++;
*row++;
putc(r, fp);
putc(g, fp);
putc(b, fp);
} else {
unsigned char a = *row++;
putc(a, fp);
}
}
}
fclose (fp);
fprintf (stderr, "Wrote %s\n", fn);
}
#endif
static cairo_status_t
_print_move_to (void *closure,
const cairo_point_t *point)
{
fprintf (closure,
" %f %f m",
_cairo_fixed_to_double (point->x),
_cairo_fixed_to_double (point->y));
return CAIRO_STATUS_SUCCESS;
}
static cairo_status_t
_print_line_to (void *closure,
const cairo_point_t *point)
{
fprintf (closure,
" %f %f l",
_cairo_fixed_to_double (point->x),
_cairo_fixed_to_double (point->y));
return CAIRO_STATUS_SUCCESS;
}
static cairo_status_t
_print_curve_to (void *closure,
const cairo_point_t *p1,
const cairo_point_t *p2,
const cairo_point_t *p3)
{
fprintf (closure,
" %f %f %f %f %f %f c",
_cairo_fixed_to_double (p1->x),
_cairo_fixed_to_double (p1->y),
_cairo_fixed_to_double (p2->x),
_cairo_fixed_to_double (p2->y),
_cairo_fixed_to_double (p3->x),
_cairo_fixed_to_double (p3->y));
return CAIRO_STATUS_SUCCESS;
}
static cairo_status_t
_print_close (void *closure)
{
fprintf (closure, " h");
return CAIRO_STATUS_SUCCESS;
}
void
_cairo_debug_print_path (FILE *stream, cairo_path_fixed_t *path)
{
cairo_status_t status;
status = _cairo_path_fixed_interpret (path,
CAIRO_DIRECTION_FORWARD,
_print_move_to,
_print_line_to,
_print_curve_to,
_print_close,
stream);
assert (status == CAIRO_STATUS_SUCCESS);
printf ("\n");
}
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