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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 #include "cc/resource_pool.h" | 5 #include "cc/resource_pool.h" |
| 6 | 6 |
| 7 #include "cc/resource_provider.h" | 7 #include "cc/resource_provider.h" |
| 8 | 8 |
| 9 namespace cc { | 9 namespace cc { |
| 10 | 10 |
| 11 ResourcePool::Resource::Resource(cc::ResourceProvider* resource_provider, | 11 ResourcePool::Resource::Resource(cc::ResourceProvider* resource_provider, |
| 12 cc::Renderer::ResourcePool pool_id, | |
| 13 const gfx::Size& size, | 12 const gfx::Size& size, |
| 14 GLenum format) | 13 GLenum format) |
| 15 : cc::Resource(resource_provider->createResource( | 14 : cc::Resource(resource_provider->createResource( |
| 16 pool_id, | |
| 17 size, | 15 size, |
| 18 format, | 16 format, |
| 19 ResourceProvider::TextureUsageAny), | 17 ResourceProvider::TextureUsageAny), |
| 20 size, | 18 size, |
| 21 format), | 19 format), |
| 22 resource_provider_(resource_provider) { | 20 resource_provider_(resource_provider) { |
| 23 DCHECK(id()); | 21 DCHECK(id()); |
| 24 } | 22 } |
| 25 | 23 |
| 26 ResourcePool::Resource::~Resource() { | 24 ResourcePool::Resource::~Resource() { |
| 27 DCHECK(id()); | 25 DCHECK(id()); |
| 28 DCHECK(resource_provider_); | 26 DCHECK(resource_provider_); |
| 29 resource_provider_->deleteResource(id()); | 27 resource_provider_->deleteResource(id()); |
| 30 } | 28 } |
| 31 | 29 |
| 32 ResourcePool::ResourcePool(ResourceProvider* resource_provider, | 30 ResourcePool::ResourcePool(ResourceProvider* resource_provider) |
| 33 Renderer::ResourcePool pool_id) | |
| 34 : resource_provider_(resource_provider), | 31 : resource_provider_(resource_provider), |
| 35 pool_id_(pool_id), | |
| 36 max_memory_usage_bytes_(0), | 32 max_memory_usage_bytes_(0), |
| 37 memory_usage_bytes_(0) { | 33 memory_usage_bytes_(0) { |
| 38 } | 34 } |
| 39 | 35 |
| 40 ResourcePool::~ResourcePool() { | 36 ResourcePool::~ResourcePool() { |
| 41 SetMaxMemoryUsageBytes(0); | 37 SetMaxMemoryUsageBytes(0); |
| 42 } | 38 } |
| 43 | 39 |
| 44 scoped_ptr<ResourcePool::Resource> ResourcePool::AcquireResource( | 40 scoped_ptr<ResourcePool::Resource> ResourcePool::AcquireResource( |
| 45 const gfx::Size& size, GLenum format) { | 41 const gfx::Size& size, GLenum format) { |
| 46 for (ResourceList::iterator it = resources_.begin(); | 42 for (ResourceList::iterator it = resources_.begin(); |
| 47 it != resources_.end(); ++it) { | 43 it != resources_.end(); ++it) { |
| 48 Resource* resource = *it; | 44 Resource* resource = *it; |
| 49 | 45 |
| 50 if (resource->size() != size) | 46 if (resource->size() != size) |
| 51 continue; | 47 continue; |
| 52 if (resource->format() != format) | 48 if (resource->format() != format) |
| 53 continue; | 49 continue; |
| 54 | 50 |
| 55 resources_.erase(it); | 51 resources_.erase(it); |
| 56 return make_scoped_ptr(resource); | 52 return make_scoped_ptr(resource); |
| 57 } | 53 } |
| 58 | 54 |
| 59 // Create new resource. | 55 // Create new resource. |
| 60 Resource* resource = new Resource( | 56 Resource* resource = new Resource( |
| 61 resource_provider_, pool_id_, size, format); | 57 resource_provider_, size, format); |
| 62 memory_usage_bytes_ += resource->bytes(); | 58 memory_usage_bytes_ += resource->bytes(); |
| 63 return make_scoped_ptr(resource); | 59 return make_scoped_ptr(resource); |
| 64 } | 60 } |
| 65 | 61 |
| 66 void ResourcePool::ReleaseResource( | 62 void ResourcePool::ReleaseResource( |
| 67 scoped_ptr<ResourcePool::Resource> resource) { | 63 scoped_ptr<ResourcePool::Resource> resource) { |
| 68 if (memory_usage_bytes_ > max_memory_usage_bytes_) { | 64 if (memory_usage_bytes_ > max_memory_usage_bytes_) { |
| 69 memory_usage_bytes_ -= resource->bytes(); | 65 memory_usage_bytes_ -= resource->bytes(); |
| 70 return; | 66 return; |
| 71 } | 67 } |
| 72 | 68 |
| 73 resources_.push_back(resource.release()); | 69 resources_.push_back(resource.release()); |
| 74 } | 70 } |
| 75 | 71 |
| 76 void ResourcePool::SetMaxMemoryUsageBytes(size_t max_memory_usage_bytes) { | 72 void ResourcePool::SetMaxMemoryUsageBytes(size_t max_memory_usage_bytes) { |
| 77 max_memory_usage_bytes_ = max_memory_usage_bytes; | 73 max_memory_usage_bytes_ = max_memory_usage_bytes; |
| 78 | 74 |
| 79 while (!resources_.empty()) { | 75 while (!resources_.empty()) { |
| 80 if (memory_usage_bytes_ <= max_memory_usage_bytes_) | 76 if (memory_usage_bytes_ <= max_memory_usage_bytes_) |
| 81 break; | 77 break; |
| 82 Resource* resource = resources_.front(); | 78 Resource* resource = resources_.front(); |
| 83 resources_.pop_front(); | 79 resources_.pop_front(); |
| 84 memory_usage_bytes_ -= resource->bytes(); | 80 memory_usage_bytes_ -= resource->bytes(); |
| 85 delete resource; | 81 delete resource; |
| 86 } | 82 } |
| 87 } | 83 } |
| 88 | 84 |
| 89 } // namespace cc | 85 } // namespace cc |
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