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/child/child_thread.h"
   8 #include "content/common/child_process_messages.h"
   9 #include "content/common/gpu/client/gpu_memory_buffer_impl.h"
  10
  11 namespace content {
  12 namespace {
  13
  14 void DeletedGpuMemoryBuffer(ThreadSafeSender* sender,
  15                             gfx::GpuMemoryBufferId id,
  16                             uint32 sync_point) {
  17   TRACE_EVENT0("renderer",
  18                "ChildGpuMemoryBufferManager::DeletedGpuMemoryBuffer");
  19   sender->Send(new ChildProcessHostMsg_DeletedGpuMemoryBuffer(id, sync_point));
  20 }
  21
  22 }  // namespace
  23
  24 ChildGpuMemoryBufferManager::ChildGpuMemoryBufferManager(
  25     ThreadSafeSender* sender)
  26     : sender_(sender) {
  27 }
  28
  29 ChildGpuMemoryBufferManager::~ChildGpuMemoryBufferManager() {
  30 }
  31
  32 scoped_ptr<gfx::GpuMemoryBuffer>
  33 ChildGpuMemoryBufferManager::AllocateGpuMemoryBuffer(
  34     const gfx::Size& size,
  35     gfx::GpuMemoryBuffer::Format format,
  36     gfx::GpuMemoryBuffer::Usage usage) {
  37   TRACE_EVENT2("renderer",
  38                "ChildGpuMemoryBufferManager::AllocateGpuMemoryBuffer",
  39                "width",
  40                size.width(),
  41                "height",
  42                size.height());
  43
  44   gfx::GpuMemoryBufferHandle handle;
  45   IPC::Message* message = new ChildProcessHostMsg_SyncAllocateGpuMemoryBuffer(
  46       size.width(), size.height(), format, usage, &handle);
  47   bool success = sender_->Send(message);
  48   if (!success)
  49     return scoped_ptr<gfx::GpuMemoryBuffer>();
  50
  51   scoped_ptr<GpuMemoryBufferImpl> buffer(GpuMemoryBufferImpl::CreateFromHandle(
  52       handle,
  53       size,
  54       format,
  55       base::Bind(&DeletedGpuMemoryBuffer, sender_, handle.id)));
  56   if (!buffer) {
  57     sender_->Send(new ChildProcessHostMsg_DeletedGpuMemoryBuffer(handle.id, 0));
  58     return scoped_ptr<gfx::GpuMemoryBuffer>();
  59   }
  60
  61   return buffer.Pass();
  62 }
  63
  64 gfx::GpuMemoryBuffer*
  65 ChildGpuMemoryBufferManager::GpuMemoryBufferFromClientBuffer(
  66     ClientBuffer buffer) {
  67   return GpuMemoryBufferImpl::FromClientBuffer(buffer);
  68 }
  69
  70 void ChildGpuMemoryBufferManager::SetDestructionSyncPoint(
  71     gfx::GpuMemoryBuffer* buffer,
  72     uint32 sync_point) {
  73   static_cast<GpuMemoryBufferImpl*>(buffer)
  74       ->set_destruction_sync_point(sync_point);
  75 }
  76
  77 }  // namespace content