content/common/gpu/client/gpu_memory_buffer_impl_ozone.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/common/gpu/client/gpu_memory_buffer_impl.h"
   6
   7 #include "content/common/gpu/client/gpu_memory_buffer_impl_ozone_native_buffer.h"
   8 #include "content/common/gpu/client/gpu_memory_buffer_impl_shared_memory.h"
   9
  10 namespace content {
  11
  12 // static
  13 scoped_ptr<GpuMemoryBufferImpl> GpuMemoryBufferImpl::Create(
  14     const gfx::Size& size,
  15     unsigned internalformat,
  16     unsigned usage) {
  17   if (GpuMemoryBufferImplSharedMemory::IsConfigurationSupported(
  18           size, internalformat, usage)) {
  19     scoped_ptr<GpuMemoryBufferImplSharedMemory> buffer(
  20         new GpuMemoryBufferImplSharedMemory(size, internalformat));
  21     if (!buffer->Initialize())
  22       return scoped_ptr<GpuMemoryBufferImpl>();
  23
  24     return buffer.PassAs<GpuMemoryBufferImpl>();
  25   }
  26
  27   return scoped_ptr<GpuMemoryBufferImpl>();
  28 }
  29
  30 // static
  31 void GpuMemoryBufferImpl::AllocateForChildProcess(
  32     const gfx::Size& size,
  33     unsigned internalformat,
  34     unsigned usage,
  35     base::ProcessHandle child_process,
  36     int child_id,
  37     const AllocationCallback& callback) {
  38   if (GpuMemoryBufferImplOzoneNativeBuffer::IsConfigurationSupported(
  39           internalformat, usage)) {
  40     GpuMemoryBufferImplOzoneNativeBuffer::AllocateOzoneNativeBufferForChildId(
  41         size, internalformat, usage, child_id, callback);
  42     return;
  43   }
  44   if (GpuMemoryBufferImplSharedMemory::IsConfigurationSupported(
  45           size, internalformat, usage)) {
  46     GpuMemoryBufferImplSharedMemory::AllocateSharedMemoryForChildProcess(
  47         size, internalformat, child_process, callback);
  48     return;
  49   }
  50
  51   callback.Run(gfx::GpuMemoryBufferHandle());
  52 }
  53
  54 // static
  55 void GpuMemoryBufferImpl::DeletedByChildProcess(
  56     gfx::GpuMemoryBufferType type,
  57     const gfx::GpuMemoryBufferId& id,
  58     base::ProcessHandle child_process) {
  59 }
  60
  61 // static
  62 scoped_ptr<GpuMemoryBufferImpl> GpuMemoryBufferImpl::CreateFromHandle(
  63     const gfx::GpuMemoryBufferHandle& handle,
  64     const gfx::Size& size,
  65     unsigned internalformat) {
  66   switch (handle.type) {
  67     case gfx::SHARED_MEMORY_BUFFER: {
  68       scoped_ptr<GpuMemoryBufferImplSharedMemory> buffer(
  69           new GpuMemoryBufferImplSharedMemory(size, internalformat));
  70       if (!buffer->InitializeFromHandle(handle))
  71         return scoped_ptr<GpuMemoryBufferImpl>();
  72
  73       return buffer.PassAs<GpuMemoryBufferImpl>();
  74     }
  75     case gfx::OZONE_NATIVE_BUFFER: {
  76       scoped_ptr<GpuMemoryBufferImplOzoneNativeBuffer> buffer(
  77           new GpuMemoryBufferImplOzoneNativeBuffer(size, internalformat));
  78       if (!buffer->InitializeFromHandle(handle))
  79         return scoped_ptr<GpuMemoryBufferImpl>();
  80
  81       return buffer.PassAs<GpuMemoryBufferImpl>();
  82     }
  83     default:
  84       return scoped_ptr<GpuMemoryBufferImpl>();
  85   }
  86 }
  87
  88 }  // namespace content