1 /* 2 * Copyright (C) 2012 Google 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 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 16 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 17 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 18 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 19 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 20 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 21 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef SkiaImageFilterBuilder_h 27 #define SkiaImageFilterBuilder_h 28 29 #include "core/platform/graphics/ColorSpace.h" 30 #include "wtf/HashMap.h" 31 32 class SkImageFilter; 33 34 namespace WebCore { 35 class FilterEffect; 36 class FilterOperations; 37 38 class SkiaImageFilterBuilder { 39 public: 40 SkiaImageFilterBuilder(); 41 ~SkiaImageFilterBuilder(); 42 43 PassRefPtr<SkImageFilter> build(FilterEffect*, ColorSpace); 44 PassRefPtr<SkImageFilter> build(const FilterOperations&); 45 46 PassRefPtr<SkImageFilter> transformColorSpace( 47 SkImageFilter* input, ColorSpace srcColorSpace, ColorSpace dstColorSpace); 48 private: 49 typedef std::pair<FilterEffect*, ColorSpace> FilterColorSpacePair; 50 typedef HashMap<FilterColorSpacePair, RefPtr<SkImageFilter> > FilterBuilderHashMap; 51 FilterBuilderHashMap m_map; 52 }; 53 54 } // namespace WebCore 55 56 namespace WTF { 57 58 template<> struct DefaultHash<WebCore::FilterEffect*> { 59 typedef PtrHash<WebCore::FilterEffect*> Hash; 60 }; 61 template<> struct DefaultHash<WebCore::ColorSpace> { 62 typedef IntHash<unsigned> Hash; 63 }; 64 65 } // namespace WTF 66 67 #endif 68
