Add DIRECT_COMPOSITION GpuMemoryBuffer type.

gpu/ipc/service/gpu_memory_buffer_factory_win.cc

+
+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "gpu/ipc/service/gpu_memory_buffer_factory_win.h"
+
+#include "gpu/ipc/service/gl_image_direct_composition.h"
+
+namespace gpu {
+
+GpuMemoryBufferFactoryWin::GpuMemoryBufferFactoryWin() {}
+
+GpuMemoryBufferFactoryWin::~GpuMemoryBufferFactoryWin() {}
+
+gfx::GpuMemoryBufferHandle GpuMemoryBufferFactoryWin::CreateGpuMemoryBuffer(
+    gfx::GpuMemoryBufferId id,
+    const gfx::Size& size,
+    gfx::BufferFormat format,
+    gfx::BufferUsage usage,
+    int client_id,
+    SurfaceHandle surface_handle) {
+  base::AutoLock lock(lock_);
+  gfx::GpuMemoryBufferHandle handle;
+  handle.type = gfx::DIRECT_COMPOSITION;
+  handle.id = id;
+  UsageMapKey key(id, client_id);
+  usage_map_[key] = usage;
+
+  return handle;
+}
+
+void GpuMemoryBufferFactoryWin::DestroyGpuMemoryBuffer(
+    gfx::GpuMemoryBufferId id,
+    int client_id) {
+  base::AutoLock lock(lock_);
+  UsageMapKey key(id, client_id);
+  usage_map_.erase(key);
+}
+
+ImageFactory* GpuMemoryBufferFactoryWin::AsImageFactory() {
+  return this;
+}
+
+// Overridden from ImageFactory:
+scoped_refptr<gl::GLImage>
+GpuMemoryBufferFactoryWin::CreateImageForGpuMemoryBuffer(
+    const gfx::GpuMemoryBufferHandle& handle,
+    const gfx::Size& size,
+    gfx::BufferFormat format,
+    unsigned internalformat,
+    int client_id,
+    SurfaceHandle surface_handle) {
+  base::AutoLock lock(lock_);
+  UsageMapKey key(handle.id, client_id);
+  auto it = usage_map_.find(key);
+  if (it == usage_map_.end())
+    return nullptr;
+
+  gfx::BufferUsage usage = it->second;
+  return make_scoped_refptr(new GLImageDirectComposition(size, format, usage));
+}
+
+scoped_refptr<gl::GLImage> GpuMemoryBufferFactoryWin::CreateAnonymousImage(
+    const gfx::Size& size,
+    gfx::BufferFormat format,
+    unsigned internalformat) {
+  NOTIMPLEMENTED();
+  return nullptr;
+}
+
+unsigned GpuMemoryBufferFactoryWin::RequiredTextureType() {
+  return GL_TEXTURE_2D;
+}
+
+bool GpuMemoryBufferFactoryWin::SupportsFormatRGB() {
+  return false;
+}
+
+}  // namespace gpu