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      1 /*
      2  * Copyright (C) 2012 Adobe Systems Incorporated. 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
      9  *    copyright notice, this list of conditions and the following
     10  *    disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above
     12  *    copyright notice, this list of conditions and the following
     13  *    disclaimer in the documentation and/or other materials
     14  *    provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AS IS AND ANY
     17  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE
     20  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
     21  * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     22  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     23  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
     25  * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
     26  * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     27  * SUCH DAMAGE.
     28  */
     29 
     30 #ifndef CustomFilterCompiledProgram_h
     31 #define CustomFilterCompiledProgram_h
     32 
     33 #include "core/platform/graphics/GraphicsContext3D.h"
     34 #include "core/platform/graphics/filters/custom/CustomFilterProgramInfo.h"
     35 #include "wtf/RefCounted.h"
     36 #include "wtf/text/WTFString.h"
     37 
     38 namespace WebCore {
     39 
     40 class CustomFilterGlobalContext;
     41 
     42 class CustomFilterCompiledProgram: public RefCounted<CustomFilterCompiledProgram> {
     43 public:
     44     static PassRefPtr<CustomFilterCompiledProgram> create(PassRefPtr<GraphicsContext3D> context, const String& validatedVertexShader, const String& validatedFragmentShader, CustomFilterProgramType programType)
     45     {
     46         return adoptRef(new CustomFilterCompiledProgram(context, validatedVertexShader, validatedFragmentShader, programType));
     47     }
     48 
     49     ~CustomFilterCompiledProgram();
     50 
     51     int positionAttribLocation() const { return m_positionAttribLocation; }
     52     int texAttribLocation() const { return m_texAttribLocation; }
     53     int meshAttribLocation() const { return m_meshAttribLocation; }
     54     int triangleAttribLocation() const { return m_triangleAttribLocation; }
     55     int meshBoxLocation() const { return m_meshBoxLocation; }
     56     int projectionMatrixLocation() const { return m_projectionMatrixLocation; }
     57     int tileSizeLocation() const { return m_tileSizeLocation; }
     58     int meshSizeLocation() const { return m_meshSizeLocation; }
     59     int samplerLocation() const { return m_samplerLocation; }
     60     int contentSamplerLocation() const { return m_contentSamplerLocation; }
     61     int samplerSizeLocation() const { return m_samplerSizeLocation; }
     62 
     63     int uniformLocationByName(const String&);
     64 
     65     bool isInitialized() const { return m_isInitialized; }
     66 
     67     Platform3DObject program() const { return m_program; }
     68 private:
     69     CustomFilterCompiledProgram(PassRefPtr<GraphicsContext3D>, const String& validatedVertexShader, const String& validatedFragmentShader, CustomFilterProgramType);
     70 
     71     Platform3DObject compileShader(GC3Denum shaderType, const String& shaderString);
     72     Platform3DObject linkProgram(Platform3DObject vertexShader, Platform3DObject fragmentShader);
     73     void initializeParameterLocations(CustomFilterProgramType);
     74 
     75     RefPtr<GraphicsContext3D> m_context;
     76     Platform3DObject m_program;
     77 
     78     int m_positionAttribLocation;
     79     int m_texAttribLocation;
     80     int m_meshAttribLocation;
     81     int m_triangleAttribLocation;
     82     int m_meshBoxLocation;
     83     int m_projectionMatrixLocation;
     84     int m_tileSizeLocation;
     85     int m_meshSizeLocation;
     86     int m_samplerLocation;
     87     int m_samplerSizeLocation;
     88     int m_contentSamplerLocation;
     89 
     90     bool m_isInitialized;
     91 };
     92 
     93 }
     94 
     95 #endif
     96