src/gpu/command_buffer/service/async_pixel_transfer_manager_sync.cc

   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_sync.h"
   6
   7 #include "gpu/command_buffer/service/async_pixel_transfer_delegate.h"
   8
   9 namespace gpu {
  10
  11 // Class which handles async pixel transfers synchronously.
  12 class AsyncPixelTransferDelegateSync : public AsyncPixelTransferDelegate {
  13  public:
  14   explicit AsyncPixelTransferDelegateSync(
  15       AsyncPixelTransferManagerSync::SharedState* shared_state);
  16   virtual ~AsyncPixelTransferDelegateSync();
  17
  18   // Implement AsyncPixelTransferDelegate:
  19   virtual void AsyncTexImage2D(
  20       const AsyncTexImage2DParams& tex_params,
  21       const AsyncMemoryParams& mem_params,
  22       const base::Closure& bind_callback) OVERRIDE;
  23   virtual void AsyncTexSubImage2D(
  24       const AsyncTexSubImage2DParams& tex_params,
  25       const AsyncMemoryParams& mem_params) OVERRIDE;
  26   virtual bool TransferIsInProgress() OVERRIDE;
  27   virtual void WaitForTransferCompletion() OVERRIDE;
  28
  29  private:
  30   // Safe to hold a raw pointer because SharedState is owned by the Manager
  31   // which owns the Delegate.
  32   AsyncPixelTransferManagerSync::SharedState* shared_state_;
  33
  34   DISALLOW_COPY_AND_ASSIGN(AsyncPixelTransferDelegateSync);
  35 };
  36
  37 AsyncPixelTransferDelegateSync::AsyncPixelTransferDelegateSync(
  38     AsyncPixelTransferManagerSync::SharedState* shared_state)
  39     : shared_state_(shared_state) {}
  40
  41 AsyncPixelTransferDelegateSync::~AsyncPixelTransferDelegateSync() {}
  42
  43 void AsyncPixelTransferDelegateSync::AsyncTexImage2D(
  44     const AsyncTexImage2DParams& tex_params,
  45     const AsyncMemoryParams& mem_params,
  46     const base::Closure& bind_callback) {
  47   // Save the define params to return later during deferred
  48   // binding of the transfer texture.
  49   void* data = GetAddress(mem_params);
  50   base::TimeTicks begin_time(base::TimeTicks::HighResNow());
  51   glTexImage2D(
  52       tex_params.target,
  53       tex_params.level,
  54       tex_params.internal_format,
  55       tex_params.width,
  56       tex_params.height,
  57       tex_params.border,
  58       tex_params.format,
  59       tex_params.type,
  60       data);
  61   shared_state_->texture_upload_count++;
  62   shared_state_->total_texture_upload_time +=
  63       base::TimeTicks::HighResNow() - begin_time;
  64   // The texture is already fully bound so just call it now.
  65   bind_callback.Run();
  66 }
  67
  68 void AsyncPixelTransferDelegateSync::AsyncTexSubImage2D(
  69     const AsyncTexSubImage2DParams& tex_params,
  70     const AsyncMemoryParams& mem_params) {
  71   void* data = GetAddress(mem_params);
  72   base::TimeTicks begin_time(base::TimeTicks::HighResNow());
  73   glTexSubImage2D(
  74       tex_params.target,
  75       tex_params.level,
  76       tex_params.xoffset,
  77       tex_params.yoffset,
  78       tex_params.width,
  79       tex_params.height,
  80       tex_params.format,
  81       tex_params.type,
  82       data);
  83   shared_state_->texture_upload_count++;
  84   shared_state_->total_texture_upload_time +=
  85       base::TimeTicks::HighResNow() - begin_time;
  86 }
  87
  88 bool AsyncPixelTransferDelegateSync::TransferIsInProgress() {
  89   // Already done.
  90   return false;
  91 }
  92
  93 void AsyncPixelTransferDelegateSync::WaitForTransferCompletion() {
  94   // Already done.
  95 }
  96
  97 AsyncPixelTransferManagerSync::SharedState::SharedState()
  98     : texture_upload_count(0) {}
  99
 100 AsyncPixelTransferManagerSync::SharedState::~SharedState() {}
 101
 102 AsyncPixelTransferManagerSync::AsyncPixelTransferManagerSync() {}
 103
 104 AsyncPixelTransferManagerSync::~AsyncPixelTransferManagerSync() {}
 105
 106 void AsyncPixelTransferManagerSync::BindCompletedAsyncTransfers() {
 107   // Everything is already bound.
 108 }
 109
 110 void AsyncPixelTransferManagerSync::AsyncNotifyCompletion(
 111     const AsyncMemoryParams& mem_params,
 112     AsyncPixelTransferCompletionObserver* observer) {
 113   observer->DidComplete(mem_params);
 114 }
 115
 116 uint32 AsyncPixelTransferManagerSync::GetTextureUploadCount() {
 117   return shared_state_.texture_upload_count;
 118 }
 119
 120 base::TimeDelta AsyncPixelTransferManagerSync::GetTotalTextureUploadTime() {
 121   return shared_state_.total_texture_upload_time;
 122 }
 123
 124 void AsyncPixelTransferManagerSync::ProcessMorePendingTransfers() {
 125 }
 126
 127 bool AsyncPixelTransferManagerSync::NeedsProcessMorePendingTransfers() {
 128   return false;
 129 }
 130
 131 AsyncPixelTransferDelegate*
 132 AsyncPixelTransferManagerSync::CreatePixelTransferDelegateImpl(
 133     gles2::TextureRef* ref,
 134     const AsyncTexImage2DParams& define_params) {
 135   return new AsyncPixelTransferDelegateSync(&shared_state_);
 136 }
 137
 138 }  // namespace gpu