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Side by Side Diff: cc/output/context_provider.h

Issue 1273163004: Revert of cc: Use worker context for one-copy tile initialization. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 5 years, 4 months ago
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1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef CC_OUTPUT_CONTEXT_PROVIDER_H_ 5 #ifndef CC_OUTPUT_CONTEXT_PROVIDER_H_
6 #define CC_OUTPUT_CONTEXT_PROVIDER_H_ 6 #define CC_OUTPUT_CONTEXT_PROVIDER_H_
7 7
8 #include "base/callback.h" 8 #include "base/callback.h"
9 #include "base/memory/ref_counted.h" 9 #include "base/memory/ref_counted.h"
10 #include "base/synchronization/lock.h"
11 #include "cc/base/cc_export.h" 10 #include "cc/base/cc_export.h"
12 #include "gpu/command_buffer/common/capabilities.h" 11 #include "gpu/command_buffer/common/capabilities.h"
13 12
14 class GrContext; 13 class GrContext;
15 14
16 namespace base { 15 namespace base {
17 class Lock; 16 class Lock;
18 } 17 }
19 18
20 namespace gpu { 19 namespace gpu {
21 class ContextSupport; 20 class ContextSupport;
22 namespace gles2 { class GLES2Interface; } 21 namespace gles2 { class GLES2Interface; }
23 } 22 }
24 23
25 namespace cc { 24 namespace cc {
26 struct ManagedMemoryPolicy; 25 struct ManagedMemoryPolicy;
27 26
28 class ContextProvider : public base::RefCountedThreadSafe<ContextProvider> { 27 class ContextProvider : public base::RefCountedThreadSafe<ContextProvider> {
29 public: 28 public:
30 class ScopedContextLock {
31 public:
32 explicit ScopedContextLock(ContextProvider* context_provider)
33 : context_provider_(context_provider),
34 context_lock_(*context_provider_->GetLock()) {
35 // Allow current thread to bind to |context_provider|.
36 context_provider_->DetachFromThread();
37 }
38 ~ScopedContextLock() {
39 // Allow a different thread to bind to |context_provider|.
40 context_provider_->DetachFromThread();
41 }
42
43 gpu::gles2::GLES2Interface* ContextGL() {
44 return context_provider_->ContextGL();
45 }
46
47 private:
48 ContextProvider* const context_provider_;
49 base::AutoLock context_lock_;
50 };
51 // Bind the 3d context to the current thread. This should be called before 29 // Bind the 3d context to the current thread. This should be called before
52 // accessing the contexts. Calling it more than once should have no effect. 30 // accessing the contexts. Calling it more than once should have no effect.
53 // Once this function has been called, the class should only be accessed 31 // Once this function has been called, the class should only be accessed
54 // from the same thread. 32 // from the same thread.
55 virtual bool BindToCurrentThread() = 0; 33 virtual bool BindToCurrentThread() = 0;
56 virtual void DetachFromThread() {} 34 virtual void DetachFromThread() {}
57 35
58 virtual gpu::gles2::GLES2Interface* ContextGL() = 0; 36 virtual gpu::gles2::GLES2Interface* ContextGL() = 0;
59 virtual gpu::ContextSupport* ContextSupport() = 0; 37 virtual gpu::ContextSupport* ContextSupport() = 0;
60 virtual class GrContext* GrContext() = 0; 38 virtual class GrContext* GrContext() = 0;
(...skipping 47 matching lines...) Expand 10 before | Expand all | Expand 10 after
108 const MemoryPolicyChangedCallback& memory_policy_changed_callback) = 0; 86 const MemoryPolicyChangedCallback& memory_policy_changed_callback) = 0;
109 87
110 protected: 88 protected:
111 friend class base::RefCountedThreadSafe<ContextProvider>; 89 friend class base::RefCountedThreadSafe<ContextProvider>;
112 virtual ~ContextProvider() {} 90 virtual ~ContextProvider() {}
113 }; 91 };
114 92
115 } // namespace cc 93 } // namespace cc
116 94
117 #endif // CC_OUTPUT_CONTEXT_PROVIDER_H_ 95 #endif // CC_OUTPUT_CONTEXT_PROVIDER_H_
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