content/common/gpu/client/gpu_memory_buffer_impl_mac.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 "content/common/gpu/client/gpu_memory_buffer_impl.h"
   6
   7 #include "content/common/gpu/client/gpu_memory_buffer_impl_io_surface.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 (GpuMemoryBufferImplSharedMemory::IsConfigurationSupported(
  39           size, internalformat, usage)) {
  40     GpuMemoryBufferImplSharedMemory::AllocateSharedMemoryForChildProcess(
  41         size, internalformat, child_process, callback);
  42     return;
  43   }
  44
  45   callback.Run(gfx::GpuMemoryBufferHandle());
  46 }
  47
  48 // static
  49 void GpuMemoryBufferImpl::DeletedByChildProcess(
  50     gfx::GpuMemoryBufferType type,
  51     const gfx::GpuMemoryBufferId& id,
  52     base::ProcessHandle child_process) {
  53 }
  54
  55 // static
  56 scoped_ptr<GpuMemoryBufferImpl> GpuMemoryBufferImpl::CreateFromHandle(
  57     const gfx::GpuMemoryBufferHandle& handle,
  58     const gfx::Size& size,
  59     unsigned internalformat) {
  60   switch (handle.type) {
  61     case gfx::SHARED_MEMORY_BUFFER: {
  62       scoped_ptr<GpuMemoryBufferImplSharedMemory> buffer(
  63           new GpuMemoryBufferImplSharedMemory(size, internalformat));
  64       if (!buffer->InitializeFromHandle(handle))
  65         return scoped_ptr<GpuMemoryBufferImpl>();
  66
  67       return buffer.PassAs<GpuMemoryBufferImpl>();
  68     }
  69     case gfx::IO_SURFACE_BUFFER: {
  70       scoped_ptr<GpuMemoryBufferImplIOSurface> buffer(
  71           new GpuMemoryBufferImplIOSurface(size, internalformat));
  72       if (!buffer->InitializeFromHandle(handle))
  73         return scoped_ptr<GpuMemoryBufferImpl>();
  74
  75       return buffer.PassAs<GpuMemoryBufferImpl>();
  76     }
  77     default:
  78       return scoped_ptr<GpuMemoryBufferImpl>();
  79   }
  80 }
  81
  82 }  // namespace content