forked from KolibriOS/kolibrios
305 lines
8.3 KiB
C
305 lines
8.3 KiB
C
/* cairo - a vector graphics library with display and print output
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*
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* Copyright © 2005 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it either under the terms of the GNU Lesser General Public
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* License version 2.1 as published by the Free Software Foundation
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* (the "LGPL") or, at your option, under the terms of the Mozilla
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* Public License Version 1.1 (the "MPL"). If you do not alter this
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* notice, a recipient may use your version of this file under either
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* the MPL or the LGPL.
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*
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* You should have received a copy of the LGPL along with this library
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* in the file COPYING-LGPL-2.1; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA
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* You should have received a copy of the MPL along with this library
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* in the file COPYING-MPL-1.1
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*
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* The contents of this file are subject to the Mozilla Public License
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* Version 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
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* OF ANY KIND, either express or implied. See the LGPL or the MPL for
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* the specific language governing rights and limitations.
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*
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* The Original Code is the cairo graphics library.
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*
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* The Initial Developer of the Original Code is Red Hat, Inc.
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*
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* Contributor(s):
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* Carl D. Worth <cworth@cworth.org>
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*/
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#include "cairoint.h"
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#include "cairo-image-surface-private.h"
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/**
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* cairo_debug_reset_static_data:
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*
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* Resets all static data within cairo to its original state,
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* (ie. identical to the state at the time of program invocation). For
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* example, all caches within cairo will be flushed empty.
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*
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* This function is intended to be useful when using memory-checking
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* tools such as valgrind. When valgrind's memcheck analyzes a
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* cairo-using program without a call to cairo_debug_reset_static_data(),
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* it will report all data reachable via cairo's static objects as
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* "still reachable". Calling cairo_debug_reset_static_data() just prior
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* to program termination will make it easier to get squeaky clean
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* reports from valgrind.
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*
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* WARNING: It is only safe to call this function when there are no
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* active cairo objects remaining, (ie. the appropriate destroy
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* functions have been called as necessary). If there are active cairo
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* objects, this call is likely to cause a crash, (eg. an assertion
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* failure due to a hash table being destroyed when non-empty).
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*
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* Since: 1.0
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**/
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void
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cairo_debug_reset_static_data (void)
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{
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CAIRO_MUTEX_INITIALIZE ();
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_cairo_scaled_font_map_destroy ();
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_cairo_toy_font_face_reset_static_data ();
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#if CAIRO_HAS_FT_FONT
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_cairo_ft_font_reset_static_data ();
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#endif
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#if CAIRO_HAS_WIN32_FONT
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_cairo_win32_font_reset_static_data ();
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#endif
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_cairo_intern_string_reset_static_data ();
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_cairo_scaled_font_reset_static_data ();
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_cairo_pattern_reset_static_data ();
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_cairo_clip_reset_static_data ();
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_cairo_image_reset_static_data ();
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#if CAIRO_HAS_DRM_SURFACE
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_cairo_drm_device_reset_static_data ();
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#endif
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_cairo_default_context_reset_static_data ();
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#if CAIRO_HAS_COGL_SURFACE
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_cairo_cogl_context_reset_static_data ();
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#endif
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CAIRO_MUTEX_FINALIZE ();
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}
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#if HAVE_VALGRIND
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void
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_cairo_debug_check_image_surface_is_defined (const cairo_surface_t *surface)
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{
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const cairo_image_surface_t *image = (cairo_image_surface_t *) surface;
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const uint8_t *bits;
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int row, width;
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if (surface == NULL)
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return;
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if (! RUNNING_ON_VALGRIND)
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return;
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bits = image->data;
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switch (image->format) {
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case CAIRO_FORMAT_A1:
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width = (image->width + 7)/8;
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break;
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case CAIRO_FORMAT_A8:
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width = image->width;
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break;
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case CAIRO_FORMAT_RGB16_565:
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width = image->width*2;
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break;
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case CAIRO_FORMAT_RGB24:
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case CAIRO_FORMAT_RGB30:
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case CAIRO_FORMAT_ARGB32:
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width = image->width*4;
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break;
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case CAIRO_FORMAT_INVALID:
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default:
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/* XXX compute width from pixman bpp */
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return;
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}
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for (row = 0; row < image->height; row++) {
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VALGRIND_CHECK_MEM_IS_DEFINED (bits, width);
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/* and then silence any future valgrind warnings */
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VALGRIND_MAKE_MEM_DEFINED (bits, width);
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bits += image->stride;
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}
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}
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#endif
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#if 0
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void
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_cairo_image_surface_write_to_ppm (cairo_image_surface_t *isurf, const char *fn)
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{
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char *fmt;
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if (isurf->format == CAIRO_FORMAT_ARGB32 || isurf->format == CAIRO_FORMAT_RGB24)
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fmt = "P6";
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else if (isurf->format == CAIRO_FORMAT_A8)
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fmt = "P5";
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else
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return;
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FILE *fp = fopen(fn, "wb");
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if (!fp)
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return;
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fprintf (fp, "%s %d %d 255\n", fmt,isurf->width, isurf->height);
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for (int j = 0; j < isurf->height; j++) {
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unsigned char *row = isurf->data + isurf->stride * j;
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for (int i = 0; i < isurf->width; i++) {
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if (isurf->format == CAIRO_FORMAT_ARGB32 || isurf->format == CAIRO_FORMAT_RGB24) {
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unsigned char r = *row++;
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unsigned char g = *row++;
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unsigned char b = *row++;
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*row++;
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putc(r, fp);
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putc(g, fp);
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putc(b, fp);
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} else {
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unsigned char a = *row++;
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putc(a, fp);
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}
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}
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}
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fclose (fp);
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fprintf (stderr, "Wrote %s\n", fn);
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}
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#endif
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static cairo_status_t
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_print_move_to (void *closure,
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const cairo_point_t *point)
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{
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fprintf (closure,
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" %f %f m",
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_cairo_fixed_to_double (point->x),
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_cairo_fixed_to_double (point->y));
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return CAIRO_STATUS_SUCCESS;
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}
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static cairo_status_t
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_print_line_to (void *closure,
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const cairo_point_t *point)
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{
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fprintf (closure,
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" %f %f l",
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_cairo_fixed_to_double (point->x),
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_cairo_fixed_to_double (point->y));
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return CAIRO_STATUS_SUCCESS;
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}
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static cairo_status_t
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_print_curve_to (void *closure,
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const cairo_point_t *p1,
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const cairo_point_t *p2,
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const cairo_point_t *p3)
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{
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fprintf (closure,
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" %f %f %f %f %f %f c",
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_cairo_fixed_to_double (p1->x),
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_cairo_fixed_to_double (p1->y),
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_cairo_fixed_to_double (p2->x),
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_cairo_fixed_to_double (p2->y),
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_cairo_fixed_to_double (p3->x),
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_cairo_fixed_to_double (p3->y));
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return CAIRO_STATUS_SUCCESS;
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}
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static cairo_status_t
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_print_close (void *closure)
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{
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fprintf (closure, " h");
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return CAIRO_STATUS_SUCCESS;
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}
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void
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_cairo_debug_print_path (FILE *stream, cairo_path_fixed_t *path)
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{
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cairo_status_t status;
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cairo_box_t box;
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fprintf (stream,
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"path: extents=(%f, %f), (%f, %f)\n",
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_cairo_fixed_to_double (path->extents.p1.x),
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_cairo_fixed_to_double (path->extents.p1.y),
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_cairo_fixed_to_double (path->extents.p2.x),
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_cairo_fixed_to_double (path->extents.p2.y));
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status = _cairo_path_fixed_interpret (path,
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_print_move_to,
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_print_line_to,
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_print_curve_to,
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_print_close,
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stream);
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assert (status == CAIRO_STATUS_SUCCESS);
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if (_cairo_path_fixed_is_box (path, &box)) {
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fprintf (stream, "[box (%d, %d), (%d, %d)]",
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box.p1.x, box.p1.y, box.p2.x, box.p2.y);
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}
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printf ("\n");
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}
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void
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_cairo_debug_print_polygon (FILE *stream, cairo_polygon_t *polygon)
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{
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int n;
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fprintf (stream,
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"polygon: extents=(%f, %f), (%f, %f)\n",
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_cairo_fixed_to_double (polygon->extents.p1.x),
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_cairo_fixed_to_double (polygon->extents.p1.y),
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_cairo_fixed_to_double (polygon->extents.p2.x),
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_cairo_fixed_to_double (polygon->extents.p2.y));
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if (polygon->num_limits) {
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fprintf (stream,
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" : limit=(%f, %f), (%f, %f) x %d\n",
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_cairo_fixed_to_double (polygon->limit.p1.x),
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_cairo_fixed_to_double (polygon->limit.p1.y),
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_cairo_fixed_to_double (polygon->limit.p2.x),
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_cairo_fixed_to_double (polygon->limit.p2.y),
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polygon->num_limits);
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}
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for (n = 0; n < polygon->num_edges; n++) {
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cairo_edge_t *edge = &polygon->edges[n];
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fprintf (stream,
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" [%d] = [(%f, %f), (%f, %f)], top=%f, bottom=%f, dir=%d\n",
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n,
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_cairo_fixed_to_double (edge->line.p1.x),
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_cairo_fixed_to_double (edge->line.p1.y),
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_cairo_fixed_to_double (edge->line.p2.x),
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_cairo_fixed_to_double (edge->line.p2.y),
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_cairo_fixed_to_double (edge->top),
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_cairo_fixed_to_double (edge->bottom),
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edge->dir);
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}
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}
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