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29 #include "GraphicsContext3D.h"
31 #include <wtf/PassRefPtr.h>
32 #include <wtf/RefCounted.h>
36 class GraphicsContext3D;
37 class WebGLContextGroup;
38 class WebGLRenderingContext;
40 class WebGLObject : public RefCounted<WebGLObject> {
42 virtual ~WebGLObject();
44 Platform3DObject object() const { return m_object; }
46 // deleteObject may not always delete the OpenGL resource. For programs and
47 // shaders, deletion is delayed until they are no longer attached.
48 // FIXME: revisit this when resource sharing between contexts are implemented.
49 void deleteObject(GraphicsContext3D*);
51 void onAttached() { ++m_attachmentCount; }
52 void onDetached(GraphicsContext3D*);
54 // This indicates whether the client side issue a delete call already, not
55 // whether the OpenGL resource is deleted.
56 // object()==0 indicates the OpenGL resource is deleted.
57 bool isDeleted() { return m_deleted; }
59 // True if this object belongs to the group or context.
60 virtual bool validate(const WebGLContextGroup*, const WebGLRenderingContext*) const = 0;
63 WebGLObject(WebGLRenderingContext*);
65 // setObject should be only called once right after creating a WebGLObject.
66 void setObject(Platform3DObject);
68 // deleteObjectImpl should be only called once to delete the OpenGL resource.
69 virtual void deleteObjectImpl(GraphicsContext3D*, Platform3DObject) = 0;
71 virtual bool hasGroupOrContext() const = 0;
73 virtual void detach();
75 virtual GraphicsContext3D* getAGraphicsContext3D() const = 0;
78 Platform3DObject m_object;
79 unsigned m_attachmentCount;
83 } // namespace WebCore
85 #endif // WebGLObject_h