content/child/child_gpu_memory_buffer_manager.cc

   1 // Copyright 2014 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 "content/child/child_gpu_memory_buffer_manager.h"
   6
   7 #include "content/common/child_process_messages.h"
   8 #include "content/common/gpu/client/gpu_memory_buffer_impl.h"
   9
  10 namespace content {
  11 namespace {
  12
  13 void DeletedGpuMemoryBuffer(ThreadSafeSender* sender,
  14                             gfx::GpuMemoryBufferId id,
  15                             uint32 sync_point) {
  16   TRACE_EVENT0("renderer",
  17                "ChildGpuMemoryBufferManager::DeletedGpuMemoryBuffer");
  18   sender->Send(new ChildProcessHostMsg_DeletedGpuMemoryBuffer(id, sync_point));
  19 }
  20
  21 }  // namespace
  22
  23 ChildGpuMemoryBufferManager::ChildGpuMemoryBufferManager(
  24     ThreadSafeSender* sender)
  25     : sender_(sender) {
  26 }
  27
  28 ChildGpuMemoryBufferManager::~ChildGpuMemoryBufferManager() {
  29 }
  30
  31 scoped_ptr<gfx::GpuMemoryBuffer>
  32 ChildGpuMemoryBufferManager::AllocateGpuMemoryBuffer(
  33     const gfx::Size& size,
  34     gfx::GpuMemoryBuffer::Format format,
  35     gfx::GpuMemoryBuffer::Usage usage) {
  36   TRACE_EVENT2("renderer",
  37                "ChildGpuMemoryBufferManager::AllocateGpuMemoryBuffer",
  38                "width",
  39                size.width(),
  40                "height",
  41                size.height());
  42
  43   gfx::GpuMemoryBufferHandle handle;
  44   IPC::Message* message = new ChildProcessHostMsg_SyncAllocateGpuMemoryBuffer(
  45       size.width(), size.height(), format, usage, &handle);
  46   bool success = sender_->Send(message);
  47   if (!success || handle.is_null())
  48     return nullptr;
  49
  50   scoped_ptr<GpuMemoryBufferImpl> buffer(GpuMemoryBufferImpl::CreateFromHandle(
  51       handle, size, format, usage,
  52       base::Bind(&DeletedGpuMemoryBuffer, sender_, handle.id)));
  53   if (!buffer) {
  54     sender_->Send(new ChildProcessHostMsg_DeletedGpuMemoryBuffer(handle.id, 0));
  55     return nullptr;
  56   }
  57
  58   return buffer.Pass();
  59 }
  60
  61 gfx::GpuMemoryBuffer*
  62 ChildGpuMemoryBufferManager::GpuMemoryBufferFromClientBuffer(
  63     ClientBuffer buffer) {
  64   return GpuMemoryBufferImpl::FromClientBuffer(buffer);
  65 }
  66
  67 void ChildGpuMemoryBufferManager::SetDestructionSyncPoint(
  68     gfx::GpuMemoryBuffer* buffer,
  69     uint32 sync_point) {
  70   static_cast<GpuMemoryBufferImpl*>(buffer)
  71       ->set_destruction_sync_point(sync_point);
  72 }
  73
  74 }  // namespace content