1/*
2 * Copyright (C) 2013 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#ifndef PlatformCAFilters_h
27#define PlatformCAFilters_h
28
29#if ENABLE(CSS_FILTERS)
30
31#include "FilterOperations.h"
32#include "GraphicsTypes.h"
33#include "PlatformLayer.h"
34#include <wtf/RetainPtr.h>
35
36#if PLATFORM(IOS) || __MAC_OS_X_VERSION_MIN_REQUIRED >= 1080
37#define USE_CA_FILTERS 1
38#else
39#define USE_CA_FILTERS 0
40#endif
41
42OBJC_CLASS NSValue;
43
44namespace WebCore {
45
46class PlatformCALayer;
47
48class PlatformCAFilters {
49public:
50    static void setFiltersOnLayer(PlatformLayer*, const FilterOperations&);
51    static void setBlendingFiltersOnLayer(PlatformLayer*, const BlendMode);
52    static int numAnimatedFilterProperties(FilterOperation::OperationType);
53    static const char* animatedFilterPropertyName(FilterOperation::OperationType, int internalFilterPropertyIndex);
54
55#if PLATFORM(COCOA)
56    static RetainPtr<NSValue> filterValueForOperation(const FilterOperation*, int internalFilterPropertyIndex);
57#endif
58
59#ifdef USE_CA_FILTERS
60    // A null operation indicates that we should make a "no-op" filter of the given type.
61    static RetainPtr<NSValue> colorMatrixValueForFilter(FilterOperation::OperationType, const FilterOperation*);
62#endif
63};
64
65}
66
67#endif // ENABLE(CSS_FILTERS)
68
69#endif // PlatformCAFilters_h
70