forked from KolibriOS/kolibrios
112 lines
3.4 KiB
C
112 lines
3.4 KiB
C
/* 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 Red Hat, Inc.
|
|
*
|
|
* Contributor(s):
|
|
* Chris Wilson <chris@chris-wilson.co.uk>
|
|
*/
|
|
|
|
#include "cairoint.h"
|
|
|
|
#include "cairo-gl-private.h"
|
|
|
|
#include "cairo-surface-backend-private.h"
|
|
|
|
static cairo_status_t
|
|
_cairo_gl_source_finish (void *abstract_surface)
|
|
{
|
|
cairo_gl_source_t *source = abstract_surface;
|
|
|
|
_cairo_gl_operand_destroy (&source->operand);
|
|
return CAIRO_STATUS_SUCCESS;
|
|
}
|
|
|
|
static const cairo_surface_backend_t cairo_gl_source_backend = {
|
|
CAIRO_SURFACE_TYPE_GL,
|
|
_cairo_gl_source_finish,
|
|
NULL, /* read-only wrapper */
|
|
};
|
|
|
|
cairo_surface_t *
|
|
_cairo_gl_pattern_to_source (cairo_surface_t *dst,
|
|
const cairo_pattern_t *pattern,
|
|
cairo_bool_t is_mask,
|
|
const cairo_rectangle_int_t *extents,
|
|
const cairo_rectangle_int_t *sample,
|
|
int *src_x, int *src_y)
|
|
{
|
|
cairo_gl_source_t *source;
|
|
cairo_int_status_t status;
|
|
|
|
TRACE ((stderr, "%s\n", __FUNCTION__));
|
|
if (pattern == NULL)
|
|
return _cairo_gl_white_source ();
|
|
|
|
source = malloc (sizeof (*source));
|
|
if (unlikely (source == NULL))
|
|
return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
|
|
|
|
_cairo_surface_init (&source->base,
|
|
&cairo_gl_source_backend,
|
|
NULL, /* device */
|
|
CAIRO_CONTENT_COLOR_ALPHA);
|
|
|
|
*src_x = *src_y = 0;
|
|
status = _cairo_gl_operand_init (&source->operand, pattern,
|
|
(cairo_gl_surface_t *)dst,
|
|
sample, extents,
|
|
FALSE);
|
|
if (unlikely (status)) {
|
|
cairo_surface_destroy (&source->base);
|
|
return _cairo_surface_create_in_error (status);
|
|
}
|
|
|
|
return &source->base;
|
|
}
|
|
|
|
cairo_surface_t *
|
|
_cairo_gl_white_source (void)
|
|
{
|
|
cairo_gl_source_t *source;
|
|
|
|
source = malloc (sizeof (*source));
|
|
if (unlikely (source == NULL))
|
|
return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
|
|
|
|
_cairo_surface_init (&source->base,
|
|
&cairo_gl_source_backend,
|
|
NULL, /* device */
|
|
CAIRO_CONTENT_COLOR_ALPHA);
|
|
|
|
_cairo_gl_solid_operand_init (&source->operand, CAIRO_COLOR_WHITE);
|
|
|
|
return &source->base;
|
|
}
|