forked from KolibriOS/kolibrios
160 lines
5.8 KiB
C
160 lines
5.8 KiB
C
/* cairo - a vector graphics library with display and print output
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*
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* Copyright © 2009 Intel Corporation
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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 University of Southern
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* California.
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*
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* Contributor(s):
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* Chris Wilson <chris@chris-wilson.co.u>
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*/
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#ifndef CAIRO_COMPOSITE_RECTANGLES_PRIVATE_H
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#define CAIRO_COMPOSITE_RECTANGLES_PRIVATE_H
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#include "cairo-types-private.h"
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#include "cairo-error-private.h"
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#include "cairo-pattern-private.h"
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CAIRO_BEGIN_DECLS
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/* Rectangles that take part in a composite operation.
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*
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* The source and mask track the extents of the respective patterns in device
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* space. The unbounded rectangle is essentially the clip rectangle. And the
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* intersection of all is the bounded rectangle, which is the minimum extents
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* the operation may require. Whether or not the operation is actually bounded
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* is tracked in the is_bounded boolean.
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*
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*/
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struct _cairo_composite_rectangles {
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cairo_surface_t *surface;
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cairo_operator_t op;
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cairo_rectangle_int_t source;
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cairo_rectangle_int_t mask;
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cairo_rectangle_int_t destination;
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cairo_rectangle_int_t bounded; /* source? IN mask? IN unbounded */
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cairo_rectangle_int_t unbounded; /* destination IN clip */
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uint32_t is_bounded;
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cairo_rectangle_int_t source_sample_area;
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cairo_rectangle_int_t mask_sample_area;
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cairo_pattern_union_t source_pattern;
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cairo_pattern_union_t mask_pattern;
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const cairo_pattern_t *original_source_pattern;
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const cairo_pattern_t *original_mask_pattern;
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cairo_clip_t *clip; /* clip will be reduced to the minimal container */
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};
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cairo_private cairo_int_status_t
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_cairo_composite_rectangles_init_for_paint (cairo_composite_rectangles_t *extents,
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cairo_surface_t *surface,
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cairo_operator_t op,
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const cairo_pattern_t *source,
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const cairo_clip_t *clip);
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cairo_private cairo_int_status_t
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_cairo_composite_rectangles_init_for_mask (cairo_composite_rectangles_t *extents,
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cairo_surface_t *surface,
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cairo_operator_t op,
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const cairo_pattern_t *source,
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const cairo_pattern_t *mask,
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const cairo_clip_t *clip);
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cairo_private cairo_int_status_t
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_cairo_composite_rectangles_init_for_stroke (cairo_composite_rectangles_t *extents,
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cairo_surface_t *surface,
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cairo_operator_t op,
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const cairo_pattern_t *source,
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const cairo_path_fixed_t *path,
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const cairo_stroke_style_t *style,
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const cairo_matrix_t *ctm,
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const cairo_clip_t *clip);
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cairo_private cairo_int_status_t
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_cairo_composite_rectangles_init_for_fill (cairo_composite_rectangles_t *extents,
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cairo_surface_t *surface,
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cairo_operator_t op,
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const cairo_pattern_t *source,
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const cairo_path_fixed_t *path,
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const cairo_clip_t *clip);
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cairo_private cairo_int_status_t
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_cairo_composite_rectangles_init_for_boxes (cairo_composite_rectangles_t *extents,
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cairo_surface_t *surface,
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cairo_operator_t op,
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const cairo_pattern_t *source,
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const cairo_boxes_t *boxes,
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const cairo_clip_t *clip);
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cairo_private cairo_int_status_t
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_cairo_composite_rectangles_init_for_polygon (cairo_composite_rectangles_t *extents,
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cairo_surface_t *surface,
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cairo_operator_t op,
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const cairo_pattern_t *source,
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const cairo_polygon_t *polygon,
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const cairo_clip_t *clip);
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cairo_private cairo_int_status_t
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_cairo_composite_rectangles_init_for_glyphs (cairo_composite_rectangles_t *extents,
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cairo_surface_t *surface,
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cairo_operator_t op,
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const cairo_pattern_t *source,
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cairo_scaled_font_t *scaled_font,
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cairo_glyph_t *glyphs,
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int num_glyphs,
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const cairo_clip_t *clip,
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cairo_bool_t *overlap);
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cairo_private cairo_int_status_t
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_cairo_composite_rectangles_intersect_source_extents (cairo_composite_rectangles_t *extents,
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const cairo_box_t *box);
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cairo_private cairo_int_status_t
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_cairo_composite_rectangles_intersect_mask_extents (cairo_composite_rectangles_t *extents,
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const cairo_box_t *box);
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cairo_private cairo_bool_t
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_cairo_composite_rectangles_can_reduce_clip (cairo_composite_rectangles_t *composite,
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cairo_clip_t *clip);
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cairo_private cairo_int_status_t
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_cairo_composite_rectangles_add_to_damage (cairo_composite_rectangles_t *composite,
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cairo_boxes_t *damage);
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cairo_private void
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_cairo_composite_rectangles_fini (cairo_composite_rectangles_t *extents);
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CAIRO_END_DECLS
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#endif /* CAIRO_COMPOSITE_RECTANGLES_PRIVATE_H */
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