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authorLorry Tar Creator <lorry-tar-importer@lorry>2016-04-10 09:28:39 +0000
committerLorry Tar Creator <lorry-tar-importer@lorry>2016-04-10 09:28:39 +0000
commit32761a6cee1d0dee366b885b7b9c777e67885688 (patch)
treed6bec92bebfb216f4126356e55518842c2f476a1 /Source/WebCore/html/canvas/WebGLVertexArrayObjectBase.h
parenta4e969f4965059196ca948db781e52f7cfebf19e (diff)
downloadWebKitGtk-tarball-32761a6cee1d0dee366b885b7b9c777e67885688.tar.gz
webkitgtk-2.4.11webkitgtk-2.4.11
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diff --git a/Source/WebCore/html/canvas/WebGLVertexArrayObjectBase.h b/Source/WebCore/html/canvas/WebGLVertexArrayObjectBase.h
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-/*
- * Copyright (C) 2015 Apple 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. ``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
- * 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 WebGLVertexArrayObjectBase_h
-#define WebGLVertexArrayObjectBase_h
-
-#include "WebGLBuffer.h"
-#include "WebGLContextObject.h"
-
-#include <wtf/PassRefPtr.h>
-
-namespace WebCore {
-
-class WebGLVertexArrayObjectBase : public WebGLContextObject {
-public:
- enum VAOType {
- VAOTypeDefault,
- VAOTypeUser,
- };
-
- virtual ~WebGLVertexArrayObjectBase() { }
-
- // Cached values for vertex attrib range checks
- struct VertexAttribState {
- VertexAttribState()
- : enabled(false)
- , bytesPerElement(0)
- , size(4)
- , type(GraphicsContext3D::FLOAT)
- , normalized(false)
- , stride(16)
- , originalStride(0)
- , offset(0)
- , divisor(0)
- {
- }
-
- bool isBound() const { return bufferBinding && bufferBinding->object(); }
- bool validateBinding() const { return !enabled || isBound(); }
-
- bool enabled;
- RefPtr<WebGLBuffer> bufferBinding;
- GC3Dsizei bytesPerElement;
- GC3Dint size;
- GC3Denum type;
- bool normalized;
- GC3Dsizei stride;
- GC3Dsizei originalStride;
- GC3Dintptr offset;
- GC3Duint divisor;
- };
-
- bool isDefaultObject() const { return m_type == VAOTypeDefault; }
-
- bool hasEverBeenBound() const { return object() && m_hasEverBeenBound; }
- void setHasEverBeenBound() { m_hasEverBeenBound = true; }
-
- PassRefPtr<WebGLBuffer> getElementArrayBuffer() const { return m_boundElementArrayBuffer; }
- void setElementArrayBuffer(PassRefPtr<WebGLBuffer>);
-
- VertexAttribState& getVertexAttribState(int index) { return m_vertexAttribState[index]; }
- void setVertexAttribState(GC3Duint, GC3Dsizei, GC3Dint, GC3Denum, GC3Dboolean, GC3Dsizei, GC3Dintptr, PassRefPtr<WebGLBuffer>);
- void unbindBuffer(PassRefPtr<WebGLBuffer>);
-
- void setVertexAttribDivisor(GC3Duint index, GC3Duint divisor);
-
-protected:
- WebGLVertexArrayObjectBase(WebGLRenderingContextBase*, VAOType);
- virtual void deleteObjectImpl(GraphicsContext3D*, Platform3DObject) = 0;
-
- VAOType m_type;
- bool m_hasEverBeenBound;
- RefPtr<WebGLBuffer> m_boundElementArrayBuffer;
- Vector<VertexAttribState> m_vertexAttribState;
-};
-
-} // namespace WebCore
-
-#endif // WebGLVertexArrayObjectBase_h