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1 /* | 1 /* |
2 * Copyright (C) 2009 Apple Inc. All rights reserved. | 2 * Copyright (C) 2009 Apple Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
6 * are met: | 6 * are met: |
7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
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46 return object ? object->object() : 0; | 46 return object ? object->object() : 0; |
47 } | 47 } |
48 | 48 |
49 class WebGLObject : public RefCountedWillBeGarbageCollectedFinalized<WebGLObject
>, public ScriptWrappable { | 49 class WebGLObject : public RefCountedWillBeGarbageCollectedFinalized<WebGLObject
>, public ScriptWrappable { |
50 public: | 50 public: |
51 virtual ~WebGLObject(); | 51 virtual ~WebGLObject(); |
52 | 52 |
53 // deleteObject may not always delete the OpenGL resource. For programs and | 53 // deleteObject may not always delete the OpenGL resource. For programs and |
54 // shaders, deletion is delayed until they are no longer attached. | 54 // shaders, deletion is delayed until they are no longer attached. |
55 // FIXME: revisit this when resource sharing between contexts are implemente
d. | 55 // FIXME: revisit this when resource sharing between contexts are implemente
d. |
56 void deleteObject(blink::WebGraphicsContext3D*); | 56 void deleteObject(WebGraphicsContext3D*); |
57 | 57 |
58 void onAttached() { ++m_attachmentCount; } | 58 void onAttached() { ++m_attachmentCount; } |
59 void onDetached(blink::WebGraphicsContext3D*); | 59 void onDetached(WebGraphicsContext3D*); |
60 | 60 |
61 // This indicates whether the client side issue a delete call already, not | 61 // This indicates whether the client side issue a delete call already, not |
62 // whether the OpenGL resource is deleted. | 62 // whether the OpenGL resource is deleted. |
63 // object()==0 indicates the OpenGL resource is deleted. | 63 // object()==0 indicates the OpenGL resource is deleted. |
64 bool isDeleted() { return m_deleted; } | 64 bool isDeleted() { return m_deleted; } |
65 | 65 |
66 // True if this object belongs to the group or context. | 66 // True if this object belongs to the group or context. |
67 virtual bool validate(const WebGLContextGroup*, const WebGLRenderingContextB
ase*) const = 0; | 67 virtual bool validate(const WebGLContextGroup*, const WebGLRenderingContextB
ase*) const = 0; |
68 virtual bool hasObject() const = 0; | 68 virtual bool hasObject() const = 0; |
69 | 69 |
70 DEFINE_INLINE_VIRTUAL_TRACE() { } | 70 DEFINE_INLINE_VIRTUAL_TRACE() { } |
71 | 71 |
72 protected: | 72 protected: |
73 explicit WebGLObject(WebGLRenderingContextBase*); | 73 explicit WebGLObject(WebGLRenderingContextBase*); |
74 | 74 |
75 // deleteObjectImpl should be only called once to delete the OpenGL resource
. | 75 // deleteObjectImpl should be only called once to delete the OpenGL resource
. |
76 // After calling deleteObjectImpl, hasObject() should return false. | 76 // After calling deleteObjectImpl, hasObject() should return false. |
77 virtual void deleteObjectImpl(blink::WebGraphicsContext3D*) = 0; | 77 virtual void deleteObjectImpl(blink::WebGraphicsContext3D*) = 0; |
78 | 78 |
79 virtual bool hasGroupOrContext() const = 0; | 79 virtual bool hasGroupOrContext() const = 0; |
80 | 80 |
81 void detach(); | 81 void detach(); |
82 void detachAndDeleteObject(); | 82 void detachAndDeleteObject(); |
83 | 83 |
84 virtual blink::WebGraphicsContext3D* getAWebGraphicsContext3D() const = 0; | 84 virtual WebGraphicsContext3D* getAWebGraphicsContext3D() const = 0; |
85 | 85 |
86 private: | 86 private: |
87 unsigned m_attachmentCount; | 87 unsigned m_attachmentCount; |
88 bool m_deleted; | 88 bool m_deleted; |
89 }; | 89 }; |
90 | 90 |
91 } // namespace blink | 91 } // namespace blink |
92 | 92 |
93 #endif // WebGLObject_h | 93 #endif // WebGLObject_h |
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