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      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 "platform/PlatformExport.h"
     30 #include "platform/geometry/FloatSize.h"
     31 #include "platform/graphics/ColorSpace.h"
     32 #include "public/platform/WebFilterOperations.h"
     33 
     34 class SkImageFilter;
     35 
     36 namespace blink {
     37 class AffineTransform;
     38 class FilterEffect;
     39 class FilterOperations;
     40 class GraphicsContext;
     41 class SourceGraphic;
     42 
     43 class PLATFORM_EXPORT SkiaImageFilterBuilder {
     44 public:
     45     SkiaImageFilterBuilder();
     46     explicit SkiaImageFilterBuilder(GraphicsContext*);
     47     ~SkiaImageFilterBuilder();
     48 
     49     PassRefPtr<SkImageFilter> build(FilterEffect*, ColorSpace, bool requiresPMColorValidation = true);
     50     void buildFilterOperations(const FilterOperations&, WebFilterOperations*);
     51     PassRefPtr<SkImageFilter> buildTransform(const AffineTransform&, SkImageFilter* input);
     52 
     53     PassRefPtr<SkImageFilter> transformColorSpace(
     54         SkImageFilter* input, ColorSpace srcColorSpace, ColorSpace dstColorSpace);
     55 
     56     void setCropOffset(const FloatSize& cropOffset) { m_cropOffset = cropOffset; };
     57     FloatSize cropOffset() { return m_cropOffset; }
     58 
     59     void setSourceGraphic(SourceGraphic* sourceGraphic) { m_sourceGraphic = sourceGraphic; }
     60     SourceGraphic* sourceGraphic() { return m_sourceGraphic; }
     61 
     62     GraphicsContext* context() { return m_context; }
     63 
     64 private:
     65     FloatSize m_cropOffset;
     66     GraphicsContext* m_context;
     67     SourceGraphic* m_sourceGraphic;
     68 };
     69 
     70 } // namespace blink
     71 
     72 #endif
     73