/* 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 */ #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_RGB16_565: width = image->width*2; break; case CAIRO_FORMAT_RGB24: case CAIRO_FORMAT_ARGB32: width = image->width*4; break; case CAIRO_FORMAT_INVALID: 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; printf ("path: extents=(%f, %f), (%f, %f)\n", _cairo_fixed_to_double (path->extents.p1.x), _cairo_fixed_to_double (path->extents.p1.y), _cairo_fixed_to_double (path->extents.p2.x), _cairo_fixed_to_double (path->extents.p2.y)); 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"); }