/* -*- 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;
}
static cairo_int_status_t
_cairo_compositor_stroke_impl (
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_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)
{
if (!style->is_hairline)
return _cairo_compositor_stroke_impl (compositor, surface,
op, source, path,
style, ctm, ctm_inverse,
tolerance, antialias, clip);
else {
cairo_stroke_style_t hairline_style;
cairo_status_t status;
cairo_matrix_t identity;
status = _cairo_stroke_style_init_copy (&hairline_style, style);
if (unlikely (status))
return status;
hairline_style.line_width = 1.0;
cairo_matrix_init_identity (&identity);
status = _cairo_compositor_stroke_impl (compositor, surface,
op, source, path,
&hairline_style, &identity, &identity,
tolerance, antialias, clip);
_cairo_stroke_style_fini (&hairline_style);
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,
surface->permit_subpixel_antialiasing);
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;
}
