Implement common Ozone interface for Chromecast.

chromecast/ozone/surface_factory_cast.h

+// 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.
+
+#ifndef CHROMECAST_OZONE_SURFACE_FACTORY_CAST_H_
+#define CHROMECAST_OZONE_SURFACE_FACTORY_CAST_H_
+
+#include "base/callback.h"
+#include "base/memory/scoped_ptr.h"
+#include "ui/gfx/geometry/size.h"
+#include "ui/ozone/public/surface_factory_ozone.h"
+
+namespace chromecast {
+namespace ozone {
+
+class CastEglPlatform;
+
+// SurfaceFactoryOzone implementation for OzonePlatformCast.
+class SurfaceFactoryCast : public ui::SurfaceFactoryOzone {
+ public:
+  explicit SurfaceFactoryCast(scoped_ptr<CastEglPlatform> egl_platform);
+  ~SurfaceFactoryCast() override;
+
+  // ui::SurfaceFactoryOzone implementation:
+  intptr_t GetNativeDisplay() override;
+  scoped_ptr<ui::SurfaceOzoneEGL> CreateEGLSurfaceForWidget(
+      gfx::AcceleratedWidget widget) override;
+  const int32* GetEGLSurfaceProperties(const int32* desired_list) override;
+  bool LoadEGLGLES2Bindings(
+      AddGLLibraryCallback add_gl_library,
+      SetGLGetProcAddressProcCallback set_gl_get_proc_address) override;
+
+  void SetToRelinquishDisplay(const base::Closure& callback);
+  intptr_t GetNativeWindow();
+  bool ResizeDisplay(gfx::Size viewport_size);
+  void ChildDestroyed();
+  void SendRelinquishResponse();
+
+ private:
+  enum HardwareState { kUninitialized, kInitialized, kFailed };
+
+  // Window is destroyed if both SetToDestroyEGLDisplay()
+  // and destructor are called (in either order) before the next
+  // SurfaceOzoneEglCast is created in order to preserve the
+  // window across surface creation whenever possible.
+  enum DestroyWindowPendingState {
+    kNoDestroyPending = 0,      // Surface does not exist
+    kSurfaceExists,             // surface and window both exist
+    kWindowDestroyPending,      // Relinquish before surface Destroy
+    kSurfaceDestroyedRecently,  // surface Destroy before Relinquish
+  };
+
+  void CreateDisplayTypeAndWindowIfNeeded();
+  void DestroyDisplayTypeAndWindow();
+  void InitializeHardware();
+  void ShutdownHardware();
+
+  HardwareState state_;
+  DestroyWindowPendingState destroy_window_pending_state_;
+  base::Closure relinquish_display_callback_;
+  intptr_t display_type_;
+  intptr_t window_;
+  const gfx::Size default_display_size_;
+  gfx::Size display_size_;
+  gfx::Size new_display_size_;
+  scoped_ptr<CastEglPlatform> egl_platform_;
+
+  DISALLOW_COPY_AND_ASSIGN(SurfaceFactoryCast);
+};
+
+}  // namespace ozone
+}  // namespace chromecast
+
+#endif  // CHROMECAST_OZONE_SURFACE_FACTORY_CAST_H_