chromeos: Add SurfaceServiceProvider.

chrome/browser/chromeos/dbus/chrome_surface_service_provider_delegate.cc

+// Copyright 2015 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 "chrome/browser/chromeos/dbus/chrome_surface_service_provider_delegate.h"
+
+#include "ash/shell.h"
+#include "ash/surfaces/surface_controller.h"
+#include "ash/surfaces/test_shell_surface_overlay_view.h"
+#include "base/logging.h"
+#include "ui/gfx/gpu_memory_buffer.h"
+
+namespace chromeos {
+namespace {
+
+#define FOURCC(a, b, c, d)                                    \
+  ((static_cast<uint32>(a)) | (static_cast<uint32>(b) << 8) | \
+   (static_cast<uint32>(c) << 16) | (static_cast<uint32>(d) << 24))
+
+#define DRM_FORMAT_ABGR8888 FOURCC('A', 'B', '2', '4')
+
+bool IsSupportedFormat(uint32 format) {
+  switch (format) {
+    case DRM_FORMAT_ABGR8888:
+      return true;
+    default:
+      return false;
+  }
+}
+
+gfx::BufferFormat BufferFormat(uint32 format) {
+  switch (format) {
+    case DRM_FORMAT_ABGR8888:
+      return gfx::BufferFormat::RGBA_8888;
+    default:
+      NOTREACHED();
+      return gfx::BufferFormat::RGBA_8888;
+  }
+}
+
+}  // namespace
+
+ChromeSurfaceServiceProviderDelegate::ChromeSurfaceServiceProviderDelegate()
+    : attached_test_shell_surface_buffer_id_(0) {}
+
+ChromeSurfaceServiceProviderDelegate::~ChromeSurfaceServiceProviderDelegate() {}
+
+void ChromeSurfaceServiceProviderDelegate::CreatePrimeBuffer(
+    uint32 id,
+    base::ScopedFD fd,
+    int32 width,
+    int32 height,
+    uint32 format,
+    int32 stride,
+    const CreateBufferCallback& callback) {
+  if (!IsSupportedFormat(format)) {
+    LOG(ERROR) << "Failed to create prime buffer. Unsupported format 0x"
+               << std::hex << format;
+    callback.Run(false);
+    return;
+  }
+
+  gfx::GpuMemoryBufferHandle handle;
+  handle.type = gfx::OZONE_NATIVE_PIXMAP;
+  handle.native_pixmap_handle.fd = base::FileDescriptor(fd.Pass());
+  handle.native_pixmap_handle.stride = stride;
+  ash::Shell::GetInstance()
+      ->surface_controller()
+      ->CreateGraphicsBufferFromGpuMemoryBufferHandle(
+          id, handle, gfx::Size(width, height), BufferFormat(format), callback);
+}
+
+void ChromeSurfaceServiceProviderDelegate::DestroyBuffer(uint32 id) {
+  ash::Shell::GetInstance()->surface_controller()->DestroyGraphicsBuffer(id);
+}
+
+void ChromeSurfaceServiceProviderDelegate::AttachBufferToTestShellSurface(
+    uint32 buffer_id,
+    const base::Closure& released_callback) {
+  ash::Shell::GetInstance()
+      ->surface_controller()
+      ->AttachGraphicsBufferToTestShellSurface(buffer_id, released_callback);
+
+  // Show overlay view when an initial buffer is attached.
+  if (!attached_test_shell_surface_buffer_id_)
+    ash::TestShellSurfaceOverlayView::Show();
+
+  attached_test_shell_surface_buffer_id_ = buffer_id;
+}
+
+}  // namespace chromeos