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29 #include "platform/graphics/GraphicsTypes3D.h"
30 #include "wtf/RefCounted.h"
33 class WebGraphicsContext3D;
38 class WebGLContextGroup;
39 class WebGLRenderingContext;
41 class WebGLObject : public RefCounted<WebGLObject> {
43 virtual ~WebGLObject();
45 Platform3DObject object() const { return m_object; }
47 // deleteObject may not always delete the OpenGL resource. For programs and
48 // shaders, deletion is delayed until they are no longer attached.
49 // FIXME: revisit this when resource sharing between contexts are implemented.
50 void deleteObject(blink::WebGraphicsContext3D*);
52 void onAttached() { ++m_attachmentCount; }
53 void onDetached(blink::WebGraphicsContext3D*);
55 // This indicates whether the client side issue a delete call already, not
56 // whether the OpenGL resource is deleted.
57 // object()==0 indicates the OpenGL resource is deleted.
58 bool isDeleted() { return m_deleted; }
60 // True if this object belongs to the group or context.
61 virtual bool validate(const WebGLContextGroup*, const WebGLRenderingContext*) const = 0;
64 WebGLObject(WebGLRenderingContext*);
66 // setObject should be only called once right after creating a WebGLObject.
67 void setObject(Platform3DObject);
69 // deleteObjectImpl should be only called once to delete the OpenGL resource.
70 virtual void deleteObjectImpl(blink::WebGraphicsContext3D*, Platform3DObject) = 0;
72 virtual bool hasGroupOrContext() const = 0;
74 virtual void detach();
76 virtual blink::WebGraphicsContext3D* getAWebGraphicsContext3D() const = 0;
79 Platform3DObject m_object;
80 unsigned m_attachmentCount;
84 } // namespace WebCore
86 #endif // WebGLObject_h