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      1 // Copyright 2013 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "gpu/command_buffer/service/async_pixel_transfer_manager.h"
      6 
      7 #include "gpu/command_buffer/service/async_pixel_transfer_delegate.h"
      8 
      9 namespace gpu {
     10 
     11 AsyncPixelTransferCompletionObserver::AsyncPixelTransferCompletionObserver() {}
     12 
     13 AsyncPixelTransferCompletionObserver::~AsyncPixelTransferCompletionObserver() {}
     14 
     15 AsyncPixelTransferManager::AsyncPixelTransferManager() {}
     16 
     17 AsyncPixelTransferManager::~AsyncPixelTransferManager() {
     18   if (manager_)
     19     manager_->RemoveObserver(this);
     20 }
     21 
     22 void AsyncPixelTransferManager::Initialize(gles2::TextureManager* manager) {
     23   manager_ = manager;
     24   manager_->AddObserver(this);
     25 }
     26 
     27 AsyncPixelTransferDelegate*
     28 AsyncPixelTransferManager::CreatePixelTransferDelegate(
     29     gles2::TextureRef* ref,
     30     const AsyncTexImage2DParams& define_params) {
     31   DCHECK(!GetPixelTransferDelegate(ref));
     32   AsyncPixelTransferDelegate* delegate =
     33       CreatePixelTransferDelegateImpl(ref, define_params);
     34   delegate_map_[ref] = make_linked_ptr(delegate);
     35   return delegate;
     36 }
     37 
     38 AsyncPixelTransferDelegate*
     39 AsyncPixelTransferManager::GetPixelTransferDelegate(
     40     gles2::TextureRef* ref) {
     41   TextureToDelegateMap::iterator it = delegate_map_.find(ref);
     42   if (it == delegate_map_.end()) {
     43     return NULL;
     44   } else {
     45     return it->second.get();
     46   }
     47 }
     48 
     49 void AsyncPixelTransferManager::ClearPixelTransferDelegateForTest(
     50     gles2::TextureRef* ref) {
     51   TextureToDelegateMap::iterator it = delegate_map_.find(ref);
     52   if (it != delegate_map_.end())
     53     delegate_map_.erase(it);
     54 }
     55 
     56 bool AsyncPixelTransferManager::AsyncTransferIsInProgress(
     57     gles2::TextureRef* ref) {
     58   AsyncPixelTransferDelegate* delegate = GetPixelTransferDelegate(ref);
     59   return delegate && delegate->TransferIsInProgress();
     60 }
     61 
     62 void AsyncPixelTransferManager::OnTextureManagerDestroying(
     63     gles2::TextureManager* manager) {
     64   // TextureManager should outlive AsyncPixelTransferManager.
     65   NOTREACHED();
     66   manager_ = NULL;
     67 }
     68 
     69 void AsyncPixelTransferManager::OnTextureRefDestroying(
     70     gles2::TextureRef* texture) {
     71   TextureToDelegateMap::iterator it = delegate_map_.find(texture);
     72   if (it != delegate_map_.end())
     73     delegate_map_.erase(it);
     74 }
     75 
     76 }  // namespace gpu
     77