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1 // Copyright 2012 The Chromium Authors. All rights reserved. | 1 // Copyright 2012 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_RESOURCES_RESOURCE_POOL_H_ | 5 #ifndef CC_RESOURCES_RESOURCE_POOL_H_ |
6 #define CC_RESOURCES_RESOURCE_POOL_H_ | 6 #define CC_RESOURCES_RESOURCE_POOL_H_ |
7 | 7 |
8 #include <list> | 8 #include <list> |
9 | 9 |
10 #include "base/memory/scoped_ptr.h" | 10 #include "base/memory/scoped_ptr.h" |
11 #include "cc/base/cc_export.h" | 11 #include "cc/base/cc_export.h" |
12 #include "cc/output/renderer.h" | 12 #include "cc/output/renderer.h" |
13 #include "cc/resources/resource.h" | 13 #include "cc/resources/resource.h" |
14 #include "cc/resources/resource_format.h" | 14 #include "cc/resources/resource_format.h" |
15 | 15 |
16 namespace cc { | 16 namespace cc { |
17 class ScopedResource; | 17 class ScopedResource; |
18 | 18 |
19 class CC_EXPORT ResourcePool { | 19 class CC_EXPORT ResourcePool { |
20 public: | 20 public: |
21 static scoped_ptr<ResourcePool> Create(ResourceProvider* resource_provider, | 21 static scoped_ptr<ResourcePool> Create(ResourceProvider* resource_provider, |
22 GLenum target, | 22 GLenum target) { |
23 ResourceFormat default_format) { | 23 return make_scoped_ptr(new ResourcePool(resource_provider, target)); |
24 return make_scoped_ptr(new ResourcePool(resource_provider, | |
25 target, | |
26 default_format)); | |
27 } | 24 } |
28 | 25 |
29 virtual ~ResourcePool(); | 26 virtual ~ResourcePool(); |
30 | 27 |
31 scoped_ptr<ScopedResource> AcquireResource(const gfx::Size& size, | 28 scoped_ptr<ScopedResource> AcquireResource(const gfx::Size& size, |
32 ResourceFormat format); | 29 ResourceFormat format); |
33 void ReleaseResource(scoped_ptr<ScopedResource>); | 30 void ReleaseResource(scoped_ptr<ScopedResource>); |
34 | 31 |
35 void SetResourceUsageLimits(size_t max_memory_usage_bytes, | 32 void SetResourceUsageLimits(size_t max_memory_usage_bytes, |
36 size_t max_unused_memory_usage_bytes, | 33 size_t max_unused_memory_usage_bytes, |
37 size_t max_resource_count); | 34 size_t max_resource_count); |
38 | 35 |
39 void ReduceResourceUsage(); | 36 void ReduceResourceUsage(); |
40 // This might block if |wait_if_needed| is true and one of the currently | 37 // This might block if |wait_if_needed| is true and one of the currently |
41 // busy resources has a read lock fence that needs to be waited upon before | 38 // busy resources has a read lock fence that needs to be waited upon before |
42 // it can be locked for write again. | 39 // it can be locked for write again. |
43 void CheckBusyResources(bool wait_if_needed); | 40 void CheckBusyResources(bool wait_if_needed); |
44 | 41 |
45 size_t total_memory_usage_bytes() const { return memory_usage_bytes_; } | 42 size_t total_memory_usage_bytes() const { return memory_usage_bytes_; } |
46 size_t acquired_memory_usage_bytes() const { | 43 size_t acquired_memory_usage_bytes() const { |
47 return memory_usage_bytes_ - unused_memory_usage_bytes_; | 44 return memory_usage_bytes_ - unused_memory_usage_bytes_; |
48 } | 45 } |
49 size_t total_resource_count() const { return resource_count_; } | 46 size_t total_resource_count() const { return resource_count_; } |
50 size_t acquired_resource_count() const { | 47 size_t acquired_resource_count() const { |
51 return resource_count_ - unused_resources_.size(); | 48 return resource_count_ - unused_resources_.size(); |
52 } | 49 } |
53 size_t busy_resource_count() const { return busy_resources_.size(); } | 50 size_t busy_resource_count() const { return busy_resources_.size(); } |
54 | 51 |
55 ResourceFormat default_format() const { return default_format_; } | |
56 | |
57 protected: | 52 protected: |
58 ResourcePool(ResourceProvider* resource_provider, | 53 ResourcePool(ResourceProvider* resource_provider, GLenum target); |
59 GLenum target, | |
60 ResourceFormat default_format); | |
61 | 54 |
62 bool ResourceUsageTooHigh(); | 55 bool ResourceUsageTooHigh(); |
63 | 56 |
64 private: | 57 private: |
65 void DidFinishUsingResource(ScopedResource* resource); | 58 void DidFinishUsingResource(ScopedResource* resource); |
66 | 59 |
67 ResourceProvider* resource_provider_; | 60 ResourceProvider* resource_provider_; |
68 const GLenum target_; | 61 const GLenum target_; |
69 // TODO(peterp): Remove the format state and let the clients keep track of | |
70 // this instead. | |
71 const ResourceFormat default_format_; | |
72 size_t max_memory_usage_bytes_; | 62 size_t max_memory_usage_bytes_; |
73 size_t max_unused_memory_usage_bytes_; | 63 size_t max_unused_memory_usage_bytes_; |
74 size_t max_resource_count_; | 64 size_t max_resource_count_; |
75 size_t memory_usage_bytes_; | 65 size_t memory_usage_bytes_; |
76 size_t unused_memory_usage_bytes_; | 66 size_t unused_memory_usage_bytes_; |
77 size_t resource_count_; | 67 size_t resource_count_; |
78 | 68 |
79 typedef std::list<ScopedResource*> ResourceList; | 69 typedef std::list<ScopedResource*> ResourceList; |
80 ResourceList unused_resources_; | 70 ResourceList unused_resources_; |
81 ResourceList busy_resources_; | 71 ResourceList busy_resources_; |
82 | 72 |
83 DISALLOW_COPY_AND_ASSIGN(ResourcePool); | 73 DISALLOW_COPY_AND_ASSIGN(ResourcePool); |
84 }; | 74 }; |
85 | 75 |
86 } // namespace cc | 76 } // namespace cc |
87 | 77 |
88 #endif // CC_RESOURCES_RESOURCE_POOL_H_ | 78 #endif // CC_RESOURCES_RESOURCE_POOL_H_ |
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