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-rw-r--r--libs/cairo-1.16.0/src/cairo-compositor.c268
1 files changed, 268 insertions, 0 deletions
diff --git a/libs/cairo-1.16.0/src/cairo-compositor.c b/libs/cairo-1.16.0/src/cairo-compositor.c
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index 0000000..b31413b
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+++ b/libs/cairo-1.16.0/src/cairo-compositor.c
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+/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2011 Intel Corporation
+ *
+ * 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., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, 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 University of Southern
+ * California.
+ *
+ * Contributor(s):
+ * Chris Wilson <chris@chris-wilson.co.uk>
+ */
+
+#include "cairoint.h"
+
+#include "cairo-compositor-private.h"
+#include "cairo-damage-private.h"
+#include "cairo-error-private.h"
+
+cairo_int_status_t
+_cairo_compositor_paint (const cairo_compositor_t *compositor,
+ cairo_surface_t *surface,
+ cairo_operator_t op,
+ const cairo_pattern_t *source,
+ const cairo_clip_t *clip)
+{
+ cairo_composite_rectangles_t extents;
+ cairo_int_status_t status;
+
+ TRACE ((stderr, "%s\n", __FUNCTION__));
+ status = _cairo_composite_rectangles_init_for_paint (&extents, surface,
+ op, source,
+ clip);
+ if (unlikely (status))
+ return status;
+
+ do {
+ while (compositor->paint == NULL)
+ compositor = compositor->delegate;
+
+ status = compositor->paint (compositor, &extents);
+
+ compositor = compositor->delegate;
+ } while (status == CAIRO_INT_STATUS_UNSUPPORTED);
+
+ if (status == CAIRO_INT_STATUS_SUCCESS && surface->damage) {
+ TRACE ((stderr, "%s: applying damage (%d,%d)x(%d, %d)\n",
+ __FUNCTION__,
+ extents.unbounded.x, extents.unbounded.y,
+ extents.unbounded.width, extents.unbounded.height));
+ surface->damage = _cairo_damage_add_rectangle (surface->damage,
+ &extents.unbounded);
+ }
+
+ _cairo_composite_rectangles_fini (&extents);
+
+ return status;
+}
+
+cairo_int_status_t
+_cairo_compositor_mask (const cairo_compositor_t *compositor,
+ cairo_surface_t *surface,
+ cairo_operator_t op,
+ const cairo_pattern_t *source,
+ const cairo_pattern_t *mask,
+ const cairo_clip_t *clip)
+{
+ cairo_composite_rectangles_t extents;
+ cairo_int_status_t status;
+
+ TRACE ((stderr, "%s\n", __FUNCTION__));
+ status = _cairo_composite_rectangles_init_for_mask (&extents, surface,
+ op, source, mask,
+ clip);
+ if (unlikely (status))
+ return status;
+
+ do {
+ while (compositor->mask == NULL)
+ compositor = compositor->delegate;
+
+ status = compositor->mask (compositor, &extents);
+
+ compositor = compositor->delegate;
+ } while (status == CAIRO_INT_STATUS_UNSUPPORTED);
+
+ if (status == CAIRO_INT_STATUS_SUCCESS && surface->damage) {
+ TRACE ((stderr, "%s: applying damage (%d,%d)x(%d, %d)\n",
+ __FUNCTION__,
+ extents.unbounded.x, extents.unbounded.y,
+ extents.unbounded.width, extents.unbounded.height));
+ surface->damage = _cairo_damage_add_rectangle (surface->damage,
+ &extents.unbounded);
+ }
+
+ _cairo_composite_rectangles_fini (&extents);
+
+ return status;
+}
+
+cairo_int_status_t
+_cairo_compositor_stroke (const cairo_compositor_t *compositor,
+ cairo_surface_t *surface,
+ cairo_operator_t op,
+ const cairo_pattern_t *source,
+ const cairo_path_fixed_t *path,
+ const cairo_stroke_style_t *style,
+ const cairo_matrix_t *ctm,
+ const cairo_matrix_t *ctm_inverse,
+ double tolerance,
+ cairo_antialias_t antialias,
+ const cairo_clip_t *clip)
+{
+ cairo_composite_rectangles_t extents;
+ cairo_int_status_t status;
+
+ TRACE ((stderr, "%s\n", __FUNCTION__));
+
+ if (_cairo_pen_vertices_needed (tolerance, style->line_width/2, ctm) <= 1)
+ return CAIRO_INT_STATUS_NOTHING_TO_DO;
+
+ status = _cairo_composite_rectangles_init_for_stroke (&extents, surface,
+ op, source,
+ path, style, ctm,
+ clip);
+ if (unlikely (status))
+ return status;
+
+ do {
+ while (compositor->stroke == NULL)
+ compositor = compositor->delegate;
+
+ status = compositor->stroke (compositor, &extents,
+ path, style, ctm, ctm_inverse,
+ tolerance, antialias);
+
+ compositor = compositor->delegate;
+ } while (status == CAIRO_INT_STATUS_UNSUPPORTED);
+
+ if (status == CAIRO_INT_STATUS_SUCCESS && surface->damage) {
+ TRACE ((stderr, "%s: applying damage (%d,%d)x(%d, %d)\n",
+ __FUNCTION__,
+ extents.unbounded.x, extents.unbounded.y,
+ extents.unbounded.width, extents.unbounded.height));
+ surface->damage = _cairo_damage_add_rectangle (surface->damage,
+ &extents.unbounded);
+ }
+
+ _cairo_composite_rectangles_fini (&extents);
+
+ return status;
+}
+
+cairo_int_status_t
+_cairo_compositor_fill (const cairo_compositor_t *compositor,
+ cairo_surface_t *surface,
+ cairo_operator_t op,
+ const cairo_pattern_t *source,
+ const cairo_path_fixed_t *path,
+ cairo_fill_rule_t fill_rule,
+ double tolerance,
+ cairo_antialias_t antialias,
+ const cairo_clip_t *clip)
+{
+ cairo_composite_rectangles_t extents;
+ cairo_int_status_t status;
+
+ TRACE ((stderr, "%s\n", __FUNCTION__));
+ status = _cairo_composite_rectangles_init_for_fill (&extents, surface,
+ op, source, path,
+ clip);
+ if (unlikely (status))
+ return status;
+
+ do {
+ while (compositor->fill == NULL)
+ compositor = compositor->delegate;
+
+ status = compositor->fill (compositor, &extents,
+ path, fill_rule, tolerance, antialias);
+
+ compositor = compositor->delegate;
+ } while (status == CAIRO_INT_STATUS_UNSUPPORTED);
+
+ if (status == CAIRO_INT_STATUS_SUCCESS && surface->damage) {
+ TRACE ((stderr, "%s: applying damage (%d,%d)x(%d, %d)\n",
+ __FUNCTION__,
+ extents.unbounded.x, extents.unbounded.y,
+ extents.unbounded.width, extents.unbounded.height));
+ surface->damage = _cairo_damage_add_rectangle (surface->damage,
+ &extents.unbounded);
+ }
+
+ _cairo_composite_rectangles_fini (&extents);
+
+ return status;
+}
+
+cairo_int_status_t
+_cairo_compositor_glyphs (const cairo_compositor_t *compositor,
+ cairo_surface_t *surface,
+ cairo_operator_t op,
+ const cairo_pattern_t *source,
+ cairo_glyph_t *glyphs,
+ int num_glyphs,
+ cairo_scaled_font_t *scaled_font,
+ const cairo_clip_t *clip)
+{
+ cairo_composite_rectangles_t extents;
+ cairo_bool_t overlap;
+ cairo_int_status_t status;
+
+ TRACE ((stderr, "%s\n", __FUNCTION__));
+ status = _cairo_composite_rectangles_init_for_glyphs (&extents, surface,
+ op, source,
+ scaled_font,
+ glyphs, num_glyphs,
+ clip, &overlap);
+ if (unlikely (status))
+ return status;
+
+ do {
+ while (compositor->glyphs == NULL)
+ compositor = compositor->delegate;
+
+ status = compositor->glyphs (compositor, &extents,
+ scaled_font, glyphs, num_glyphs, overlap);
+
+ compositor = compositor->delegate;
+ } while (status == CAIRO_INT_STATUS_UNSUPPORTED);
+
+ if (status == CAIRO_INT_STATUS_SUCCESS && surface->damage) {
+ TRACE ((stderr, "%s: applying damage (%d,%d)x(%d, %d)\n",
+ __FUNCTION__,
+ extents.unbounded.x, extents.unbounded.y,
+ extents.unbounded.width, extents.unbounded.height));
+ surface->damage = _cairo_damage_add_rectangle (surface->damage,
+ &extents.unbounded);
+ }
+
+ _cairo_composite_rectangles_fini (&extents);
+
+ return status;
+}
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