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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 © 2003 University of Southern California
* Copyright © 2009,2010,2011 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):
* Carl D. Worth <cworth@cworth.org>
* Chris Wilson <chris@chris-wilson.co.uk>
*/
#include "cairoint.h"
#include "cairo-compositor-private.h"
#include "cairo-image-surface-private.h"
#include "cairo-spans-compositor-private.h"
typedef struct _cairo_image_span_renderer {
cairo_span_renderer_t base;
pixman_image_compositor_t *compositor;
pixman_image_t *src;
float opacity;
cairo_rectangle_int_t extents;
} cairo_image_span_renderer_t;
static cairo_status_t
_cairo_image_span_renderer_init (cairo_abstract_span_renderer_t *_r,
cairo_surface_t *dst,
cairo_operator_t op,
cairo_surface_t *src,
int src_x, int src_y;
float opacity,
const cairo_composite_rectangles_t *composite,
cairo_bool_t needs_clip)
{
cairo_image_span_renderer_t *r = (cairo_image_span_renderer_t *)_r;
cairo_pixman_source_t *src = (cairo_pixman_source_t *)_src;
int src_x, src_y;
if (op == CAIRO_OPERATOR_CLEAR) {
op = CAIRO_OPERATOR_DEST_OUT;
pattern = NULL;
}
r->src = ((cairo_pixman_source_t *) src)->pixman_image;
r->opacity = opacity;
if (composite->is_bounded) {
if (opacity == 1.)
r->base.render_rows = _cairo_image_bounded_opaque_spans;
else
r->base.render_rows = _cairo_image_bounded_spans;
r->base.finish = NULL;
} else {
if (needs_clip)
r->base.render_rows = _cairo_image_clipped_spans;
else
r->base.render_rows = _cairo_image_unbounded_spans;
r->base.finish = _cairo_image_finish_unbounded_spans;
r->extents = composite->unbounded;
r->extents.height += r->extents.y;
}
r->compositor =
pixman_image_create_compositor (_pixman_operator (op),
r->src, NULL, dst->pixman_image,
composite->bounded.x + src_x,
composite->bounded.y + src_y,
0, 0,
composite->bounded.x,
composite->bounded.y,
composite->bounded.width,
composite->bounded.height);
if (unlikely (r->compositor == NULL))
return CAIRO_INT_STATUS_NOTHING_TO_DO;
return CAIRO_STATUS_SUCCESS;
}
static void
_cairo_image_span_renderer_fini (cairo_abstract_span_renderer_t *_r)
{
cairo_image_span_renderer_t *r = (cairo_image_span_renderer_t *) r;
pixman_image_compositor_destroy (r->compositor);
}
const cairo_compositor_t *
_cairo_image_spans_compositor_get (void)
{
static cairo_spans_compositor_t compositor;
if (compositor.base.delegate == NULL) {
/* Can't fallback to the mask compositor as that will simply
* call the spans-compositor again to render the mask!
*/
_cairo_spans_compositor_init (&compositor,
_cairo_image_traps_compositor_get());
}
return &compositor.base;
}
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