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/*
* Copyright (C) 2011 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 COMPUTER, 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 COMPUTER, 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 WebGLVertexArrayObjectOES_h
#define WebGLVertexArrayObjectOES_h
#include "core/html/canvas/WebGLBuffer.h"
#include "core/html/canvas/WebGLContextObject.h"
#include "platform/heap/Handle.h"
#include "wtf/PassRefPtr.h"
namespace blink {
class WebGLVertexArrayObjectOES final : public WebGLContextObject {
DEFINE_WRAPPERTYPEINFO();
public:
enum VaoType {
VaoTypeDefault,
VaoTypeUser,
};
virtual ~WebGLVertexArrayObjectOES();
static PassRefPtrWillBeRawPtr<WebGLVertexArrayObjectOES> create(WebGLRenderingContextBase*, VaoType);
// Cached values for vertex attrib range checks
class VertexAttribState final {
ALLOW_ONLY_INLINE_ALLOCATION();
public:
VertexAttribState()
: enabled(false)
, bytesPerElement(0)
, size(4)
, type(GL_FLOAT)
, normalized(false)
, stride(16)
, originalStride(0)
, offset(0)
, divisor(0)
{
}
void trace(Visitor*);
bool enabled;
RefPtrWillBeMember<WebGLBuffer> bufferBinding;
GLsizei bytesPerElement;
GLint size;
GLenum type;
bool normalized;
GLsizei stride;
GLsizei originalStride;
GLintptr offset;
GLuint divisor;
};
bool isDefaultObject() const { return m_type == VaoTypeDefault; }
bool hasEverBeenBound() const { return object() && m_hasEverBeenBound; }
void setHasEverBeenBound() { m_hasEverBeenBound = true; }
PassRefPtrWillBeRawPtr<WebGLBuffer> boundElementArrayBuffer() const { return m_boundElementArrayBuffer; }
void setElementArrayBuffer(PassRefPtrWillBeRawPtr<WebGLBuffer>);
VertexAttribState& getVertexAttribState(int index) { return m_vertexAttribState[index]; }
void setVertexAttribState(GLuint, GLsizei, GLint, GLenum, GLboolean, GLsizei, GLintptr, PassRefPtrWillBeRawPtr<WebGLBuffer>);
void unbindBuffer(PassRefPtrWillBeRawPtr<WebGLBuffer>);
void setVertexAttribDivisor(GLuint index, GLuint divisor);
virtual void trace(Visitor*) override;
private:
WebGLVertexArrayObjectOES(WebGLRenderingContextBase*, VaoType);
void dispatchDetached(blink::WebGraphicsContext3D*);
virtual void deleteObjectImpl(blink::WebGraphicsContext3D*, Platform3DObject) override;
VaoType m_type;
bool m_hasEverBeenBound;
#if ENABLE(OILPAN)
bool m_destructionInProgress;
#endif
RefPtrWillBeMember<WebGLBuffer> m_boundElementArrayBuffer;
WillBeHeapVector<VertexAttribState> m_vertexAttribState;
};
} // namespace blink
namespace WTF {
template<>
struct VectorTraits<blink::WebGLVertexArrayObjectOES::VertexAttribState> : SimpleClassVectorTraits<blink::WebGLVertexArrayObjectOES::VertexAttribState> {
// Must use the constructor.
static const bool canInitializeWithMemset = false;
static const bool canCopyWithMemcpy = true;
};
} // namespace WTF
#endif // WebGLVertexArrayObjectOES_h
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