1 /* 2 * Copyright (C) 2011 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 ProgramBinding_h 27 #define ProgramBinding_h 28 29 #if USE(ACCELERATED_COMPOSITING) 30 31 #include "PlatformString.h" 32 33 namespace WebCore { 34 35 class GraphicsContext3D; 36 37 class ProgramBindingBase { 38 public: 39 explicit ProgramBindingBase(GraphicsContext3D*); 40 ~ProgramBindingBase(); 41 42 bool init(const String& vertexShader, const String& fragmentShader); 43 program()44 unsigned program() const { return m_program; } initialized()45 bool initialized() const { return m_initialized; } 46 47 protected: 48 49 unsigned loadShader(unsigned type, const String& shaderSource); 50 unsigned createShaderProgram(const String& vertexShaderSource, const String& fragmentShaderSource); 51 52 GraphicsContext3D* m_context; 53 unsigned m_program; 54 bool m_initialized; 55 }; 56 57 template<class VertexShader, class FragmentShader> 58 class ProgramBinding : public ProgramBindingBase { 59 public: ProgramBinding(GraphicsContext3D * context)60 explicit ProgramBinding(GraphicsContext3D* context) 61 : ProgramBindingBase(context) 62 { 63 if (!ProgramBindingBase::init(m_vertexShader.getShaderString(), m_fragmentShader.getShaderString())) 64 return; 65 if (!m_vertexShader.init(m_context, m_program)) 66 return; 67 if (!m_fragmentShader.init(m_context, m_program)) 68 return; 69 m_initialized = true; 70 } 71 vertexShader()72 const VertexShader& vertexShader() const { return m_vertexShader; } fragmentShader()73 const FragmentShader& fragmentShader() const { return m_fragmentShader; } 74 75 private: 76 77 VertexShader m_vertexShader; 78 FragmentShader m_fragmentShader; 79 }; 80 81 } // namespace WebCore 82 83 #endif // USE(ACCELERATED_COMPOSITING) 84 85 #endif 86