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7146358250
The problem is _cairo_recording_surface_replay_and_create_regions() stores the cairo_recording_region_type_t in the same structure as the recording commands. This does not work well when the recording surface is used as source by multiple surfaces Fix this by moving the cairo_recording_region_type_t into a separate struct cairo_recording_regions_array_t. This struct is stored in a list that allows multiple create regions results to be store in the surface. The new function _cairo_recording_surface_region_array_attach() is used to create a new cairo_recording_regions_array_t, attach it to the recording surface and return a unique region id. The _cairo_recording_surface_replay_and_create_regions() and _cairo_recording_surface_replay_region() functions use this region id to identify the cairo_recording_regions_array_t. To handle nested recording surfaces, when replaying a recording, the region id is passed to the target as an extra parameter in the surface pattern. The wrapper surface makes a temporary copy of the pattern to ensure the snapshot pattern in the recording surface is not modified. cairo_recording_regions_array_t has a reference count so the target can hold on to the cairo_recording_regions_array_t after the paginated surface has called _cairo_recording_surface_region_array_remove().
87 lines
3 KiB
C
87 lines
3 KiB
C
/*
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* Copyright © 2005 Keith Packard
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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 Keith Packard
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*
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* Contributor(s):
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* Keith Packard <keithp@keithp.com>
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*/
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#ifndef CAIRO_ANALYSIS_SURFACE_H
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#define CAIRO_ANALYSIS_SURFACE_H
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#include "cairoint.h"
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cairo_private cairo_surface_t *
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_cairo_analysis_surface_create (cairo_surface_t *target,
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cairo_bool_t create_region_ids);
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cairo_private void
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_cairo_analysis_surface_set_ctm (cairo_surface_t *surface,
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const cairo_matrix_t *ctm);
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cairo_private void
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_cairo_analysis_surface_get_ctm (cairo_surface_t *surface,
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cairo_matrix_t *ctm);
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cairo_private cairo_region_t *
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_cairo_analysis_surface_get_supported (cairo_surface_t *surface);
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cairo_private cairo_region_t *
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_cairo_analysis_surface_get_unsupported (cairo_surface_t *surface);
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cairo_private cairo_bool_t
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_cairo_analysis_surface_has_supported (cairo_surface_t *surface);
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cairo_private cairo_bool_t
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_cairo_analysis_surface_has_unsupported (cairo_surface_t *surface);
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cairo_private void
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_cairo_analysis_surface_get_bounding_box (cairo_surface_t *surface,
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cairo_box_t *bbox);
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cairo_private unsigned int
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_cairo_analysis_surface_get_source_region_id (cairo_surface_t *surface);
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cairo_private unsigned int
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_cairo_analysis_surface_get_mask_region_id (cairo_surface_t *surface);
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cairo_private cairo_int_status_t
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_cairo_analysis_surface_merge_status (cairo_int_status_t status_a,
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cairo_int_status_t status_b);
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cairo_private cairo_surface_t *
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_cairo_null_surface_create (cairo_content_t content);
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static inline cairo_bool_t
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_cairo_surface_is_analysis (const cairo_surface_t *surface)
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{
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return (cairo_internal_surface_type_t)surface->backend->type == CAIRO_INTERNAL_SURFACE_TYPE_ANALYSIS;
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}
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#endif /* CAIRO_ANALYSIS_SURFACE_H */
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