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91 lines
3.2 KiB
C++
91 lines
3.2 KiB
C++
/*
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* Copyright (C) 2009 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef WebGLObject_h
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#define WebGLObject_h
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#include "platform/graphics/GraphicsTypes3D.h"
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#include "platform/heap/Handle.h"
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#include "wtf/RefCounted.h"
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namespace blink {
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class WebGraphicsContext3D;
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}
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namespace blink {
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class WebGLContextGroup;
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class WebGLRenderingContextBase;
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class WebGLObject : public RefCountedWillBeGarbageCollectedFinalized<WebGLObject> {
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public:
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virtual ~WebGLObject();
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Platform3DObject object() const { return m_object; }
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// deleteObject may not always delete the OpenGL resource. For programs and
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// shaders, deletion is delayed until they are no longer attached.
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// FIXME: revisit this when resource sharing between contexts are implemented.
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void deleteObject(blink::WebGraphicsContext3D*);
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void onAttached() { ++m_attachmentCount; }
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void onDetached(blink::WebGraphicsContext3D*);
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// This indicates whether the client side issue a delete call already, not
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// whether the OpenGL resource is deleted.
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// object()==0 indicates the OpenGL resource is deleted.
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bool isDeleted() { return m_deleted; }
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// True if this object belongs to the group or context.
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virtual bool validate(const WebGLContextGroup*, const WebGLRenderingContextBase*) const = 0;
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virtual void trace(Visitor*) { }
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protected:
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explicit WebGLObject(WebGLRenderingContextBase*);
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// setObject should be only called once right after creating a WebGLObject.
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void setObject(Platform3DObject);
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// deleteObjectImpl should be only called once to delete the OpenGL resource.
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virtual void deleteObjectImpl(blink::WebGraphicsContext3D*, Platform3DObject) = 0;
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virtual bool hasGroupOrContext() const = 0;
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void detach();
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void detachAndDeleteObject();
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virtual blink::WebGraphicsContext3D* getAWebGraphicsContext3D() const = 0;
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private:
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Platform3DObject m_object;
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unsigned m_attachmentCount;
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bool m_deleted;
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};
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} // namespace blink
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#endif // WebGLObject_h
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