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1 /* | 1 /* |
2 * Copyright (C) 2011 Apple Inc. All rights reserved. | 2 * Copyright (C) 2011 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 |
11 * documentation and/or other materials provided with the distribution. | 11 * documentation and/or other materials provided with the distribution. |
12 * | 12 * |
13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY | 13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY |
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR | 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR |
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
24 */ | 24 */ |
25 | 25 |
26 #ifndef WebGLSharedObject_h | 26 #ifndef WebGLSharedObject_h |
27 #define WebGLSharedObject_h | 27 #define WebGLSharedObject_h |
28 | 28 |
29 #include "core/dom/ScriptExecutionContext.h" | |
29 #include "core/html/canvas/WebGLObject.h" | 30 #include "core/html/canvas/WebGLObject.h" |
31 #include "wtf/Deque.h" | |
32 #include "wtf/HashMap.h" | |
30 | 33 |
31 namespace WebCore { | 34 namespace WebCore { |
32 | 35 |
33 class GraphicsContext3D; | 36 class GraphicsContext3D; |
37 class WebGLAcquireSharedResourceCallback; | |
34 class WebGLContextGroup; | 38 class WebGLContextGroup; |
35 class WebGLRenderingContext; | 39 class WebGLRenderingContext; |
40 class WebGLSharedObject; | |
41 class WebGLAcquireSharedResourceRequest; | |
36 | 42 |
37 // WebGLSharedObject the base class for objects that can be shared by multiple | 43 // WebGLSharedObject the base class for objects that can be shared by multiple |
38 // WebGLRenderingContexts. | 44 // WebGLRenderingContexts. |
39 class WebGLSharedObject : public WebGLObject { | 45 class WebGLSharedObject : public WebGLObject { |
40 public: | 46 public: |
47 enum AcquireMode { | |
48 Unacquired = 0, | |
49 ReadOnly = 1, | |
50 Exclusive = 4, | |
51 }; | |
52 | |
41 virtual ~WebGLSharedObject(); | 53 virtual ~WebGLSharedObject(); |
42 | 54 |
55 static bool IntToAcquireMode(unsigned, AcquireMode*); | |
Ken Russell (switch to Gerrit)
2013/06/19 03:51:24
nit: I think Blink naming convention is intToAcqui
greggman
2013/06/21 19:54:21
Done.
| |
56 | |
43 WebGLContextGroup* contextGroup() const { return m_contextGroup; } | 57 WebGLContextGroup* contextGroup() const { return m_contextGroup; } |
44 | 58 |
45 virtual bool isBuffer() const { return false; } | 59 virtual bool isBuffer() const { return false; } |
46 virtual bool isFramebuffer() const { return false; } | |
47 virtual bool isProgram() const { return false; } | 60 virtual bool isProgram() const { return false; } |
48 virtual bool isRenderbuffer() const { return false; } | 61 virtual bool isRenderbuffer() const { return false; } |
49 virtual bool isShader() const { return false; } | 62 virtual bool isShader() const { return false; } |
50 virtual bool isTexture() const { return false; } | 63 virtual bool isTexture() const { return false; } |
51 | 64 |
52 virtual bool validate(const WebGLContextGroup* contextGroup, const WebGLRend eringContext*) const | 65 virtual const char* typeName() const = 0; |
53 { | 66 |
54 return contextGroup == m_contextGroup; | 67 bool validate(const char*, WebGLRenderingContext*, WebGLSharedObject::Acquir eMode, bool, bool*) const; |
55 } | |
56 | 68 |
57 void detachContextGroup(); | 69 void detachContextGroup(); |
58 | 70 |
71 bool isAcquiredForContext(const WebGLRenderingContext*, WebGLSharedObject::A cquireMode, bool, bool*, const char**) const; | |
72 bool hasBeenBoundInContextSinceLastAcquire(const WebGLRenderingContext*); | |
73 void markAsBoundSinceLastAcquireForContext(const WebGLRenderingContext*); | |
74 bool addAcquireRequest(WebGLRenderingContext*, WebGLSharedObject::AcquireMod e, PassRefPtr<WebGLAcquireSharedResourceCallback>, long&); | |
75 // cancels an acquire request. Returns true if id was found. | |
76 bool cancelAcquireRequest(const WebGLRenderingContext*, long); | |
77 bool release(WebGLRenderingContext*); | |
78 | |
79 void processAcquireRequests(); | |
80 void removePostedAcquireRequest(const WebGLRenderingContext*, long); | |
81 | |
59 protected: | 82 protected: |
60 WebGLSharedObject(WebGLRenderingContext*); | 83 WebGLSharedObject(WebGLRenderingContext*); |
61 | 84 |
62 virtual bool hasGroupOrContext() const | 85 virtual bool hasGroupOrContext() const |
63 { | 86 { |
64 return m_contextGroup; | 87 return m_contextGroup; |
65 } | 88 } |
66 | 89 |
67 virtual GraphicsContext3D* getAGraphicsContext3D() const; | 90 virtual GraphicsContext3D* getAGraphicsContext3D() const; |
68 | 91 |
69 private: | 92 private: |
93 class DispatchCallbackTask : public ScriptExecutionContext::Task { | |
94 public: | |
95 DispatchCallbackTask(PassRefPtr<WebGLAcquireSharedResourceRequest> reque st) | |
96 : m_request(request) | |
97 { | |
98 } | |
99 ~DispatchCallbackTask(); | |
100 | |
101 virtual void performTask(ScriptExecutionContext*); | |
102 | |
103 private: | |
104 RefPtr<WebGLAcquireSharedResourceRequest> m_request; | |
105 }; | |
106 | |
107 typedef HashMap<const WebGLRenderingContext*, bool> AcquireContextMap; | |
108 typedef Deque<RefPtr<WebGLAcquireSharedResourceRequest> > AcquireRequestQueu e; | |
109 typedef Deque<RefPtr<WebGLAcquireSharedResourceRequest> > AcquireRequestList ; | |
110 | |
111 bool acquire(WebGLSharedObject::AcquireMode, const WebGLRenderingContext*); | |
112 bool isRequestPending(const WebGLRenderingContext*); | |
113 | |
70 WebGLContextGroup* m_contextGroup; | 114 WebGLContextGroup* m_contextGroup; |
115 | |
116 WebGLSharedObject::AcquireMode m_acquireMode; | |
117 | |
118 // A map of contexts that currently have this resource acquired. | |
119 // and whether or not it's been bound since last acquired. | |
120 AcquireContextMap m_acquireContextMap; | |
121 | |
122 AcquireRequestQueue m_acquireRequestQueue; // requests that are waiting for resources. | |
123 AcquireRequestList m_acquireRequestPostedList; // requests what have had scr ipt tasks posted but the script has not executed. | |
71 }; | 124 }; |
72 | 125 |
126 class WebGLAcquireSharedResourceRequest : public RefCounted<WebGLAcquireSharedRe sourceRequest> { | |
127 public: | |
128 static PassRefPtr<WebGLAcquireSharedResourceRequest> create(PassRefPtr<WebGL SharedObject>, PassRefPtr<WebGLAcquireSharedResourceCallback>, WebGLSharedObject ::AcquireMode, WebGLRenderingContext*, long); | |
129 ~WebGLAcquireSharedResourceRequest(); | |
130 | |
131 long id() const { return m_id; } | |
132 WebGLRenderingContext* context() const { return m_context; } | |
133 WebGLSharedObject::AcquireMode acquireMode() const { return m_acquireMode; } | |
134 void cancel(); | |
135 | |
136 // Run the callback. | |
137 void run(); | |
138 | |
139 private: | |
140 WebGLAcquireSharedResourceRequest(PassRefPtr<WebGLSharedObject>, PassRefPtr< WebGLAcquireSharedResourceCallback>, WebGLSharedObject::AcquireMode, WebGLRender ingContext*, long); | |
141 | |
142 RefPtr<WebGLSharedObject> m_sharedObject; | |
143 WebGLRenderingContext* m_context; | |
Ken Russell (switch to Gerrit)
2013/06/19 03:51:24
How about a comment: // Weak, but context is kept
greggman
2013/06/21 19:54:21
Done.
| |
144 long m_id; | |
145 WebGLSharedObject::AcquireMode m_acquireMode; | |
146 RefPtr<WebGLAcquireSharedResourceCallback> m_callback; | |
147 }; | |
148 | |
149 | |
73 } // namespace WebCore | 150 } // namespace WebCore |
74 | 151 |
75 #endif // WebGLSharedObject_h | 152 #endif // WebGLSharedObject_h |
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