/* * Copyright (C) 2012, Google Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef TextureCopier_h #define TextureCopier_h #include "GraphicsContext3D.h" #include "ProgramBinding.h" #include "ShaderChromium.h" #include <wtf/PassRefPtr.h> namespace WebCore { class TextureCopier { public: // Copy the base level contents of |sourceTextureId| to |destTextureId|. Both texture objects // must be complete and have a base level of |size| dimensions. The color formats do not need // to match, but |destTextureId| must have a renderable format. virtual void copyTexture(GraphicsContext3D*, unsigned sourceTextureId, unsigned destTextureId, const IntSize&) = 0; protected: virtual ~TextureCopier() { } }; #if USE(ACCELERATED_COMPOSITING) class AcceleratedTextureCopier : public TextureCopier { WTF_MAKE_NONCOPYABLE(AcceleratedTextureCopier); public: static PassOwnPtr<AcceleratedTextureCopier> create(PassRefPtr<GraphicsContext3D> context) { return adoptPtr(new AcceleratedTextureCopier(context)); } virtual ~AcceleratedTextureCopier(); virtual void copyTexture(GraphicsContext3D*, unsigned sourceTextureId, unsigned destTextureId, const IntSize&); protected: explicit AcceleratedTextureCopier(PassRefPtr<GraphicsContext3D>); private: typedef ProgramBinding<VertexShaderPosTexIdentity, FragmentShaderRGBATex> BlitProgram; RefPtr<GraphicsContext3D> m_context; Platform3DObject m_fbo; Platform3DObject m_positionBuffer; OwnPtr<BlitProgram> m_blitProgram; }; #endif // USE(ACCELERATED_COMPOSITING) } #endif