Loads CastEglPlatform implementation from shared library.

chromecast/ozone/cast_egl_platform.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_CAST_EGL_PLATFORM_H_
-#define CHROMECAST_OZONE_CAST_EGL_PLATFORM_H_
-
-#include "ui/ozone/public/surface_factory_ozone.h"
-
-namespace gfx {
-class Size;
-}
-
-namespace chromecast {
-namespace ozone {
-
-// Interface representing all the hardware-specific elements of an Ozone
-// implementation for Cast.  Supply an implementation of this interface
-// to OzonePlatformCast to create a complete Ozone implementation.
-class CastEglPlatform {
- public:
-  typedef ui::SurfaceFactoryOzone::AddGLLibraryCallback AddGLLibraryCallback;
-  typedef ui::SurfaceFactoryOzone::SetGLGetProcAddressProcCallback
-      SetGLGetProcAddressProcCallback;
-
-  virtual ~CastEglPlatform() {}
-
-  // Default display size is used for initial display and also as a minimum
-  // resolution for applications.
-  virtual gfx::Size GetDefaultDisplaySize() const = 0;
-
-  // Returns an array of EGL properties, which can be used in any EGL function
-  // used to select a display configuration. Note that all properties should be
-  // immediately followed by the corresponding desired value and array should be
-  // terminated with EGL_NONE. Ownership of the array is not transferred to
-  // caller. desired_list contains list of desired EGL properties and values.
-  virtual const int32* GetEGLSurfaceProperties(const int32* desired_list) = 0;
-
-  // Initialize/ShutdownHardware are called at most once each over the object's
-  // lifetime.  Initialize will be called before creating display type or
-  // window.  If Initialize fails, return false (Shutdown will still be called).
-  virtual bool InitializeHardware() = 0;
-  virtual void ShutdownHardware() = 0;
-
-  // Called once after hardware successfully initialized.  Implementation needs
-  // to add the EGL and GLES2 libraries through add_gl_library and also supply
-  // a pointer to eglGetProcAddress (or equivalent function).
-  virtual bool LoadEGLGLES2Bindings(
-      AddGLLibraryCallback add_gl_library,
-      SetGLGetProcAddressProcCallback set_gl_get_proc_address) = 0;
-
-  // Create/destroy an EGLNativeDisplayType.  These may be called multiple times
-  // over the object's lifetime, for example to release the display when
-  // switching to an external application.  There will be at most one display
-  // type at a time.
-  virtual intptr_t CreateDisplayType(const gfx::Size& size) = 0;
-  virtual void DestroyDisplayType(intptr_t display_type) = 0;
-
-  // Create/destroy an EGLNativeWindow.  There will be at most one window at a
-  // time, created within a valid display type.
-  virtual intptr_t CreateWindow(intptr_t display_type,
-                                const gfx::Size& size) = 0;
-  virtual void DestroyWindow(intptr_t window) = 0;
-};
-
-}  // namespace ozone
-}  // namespace chromecast
-
-#endif  // CHROMECAST_OZONE_CAST_EGL_PLATFORM_H_