blob: 500fbc59be08a17446df05823821a8c68d5c91b0 [file] [log] [blame]
// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
namespace chromecast {
struct Size;
// 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 {
typedef void* (*GLGetProcAddressProc)(const char* name);
typedef void* NativeDisplayType;
typedef void* NativeWindowType;
virtual ~CastEglPlatform() {}
// 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 int* GetEGLSurfaceProperties(const int* desired_list) = 0;
// InitializeHardware is called once (before creating display type or window)
// and must return false on failure.
virtual bool InitializeHardware() = 0;
// These three are called once after hardware is successfully initialized.
// The implementation must load the libraries containing EGL and GLES2
// bindings (return the pointer obtained from dlopen). It must also supply
// a function pointer to eglGetProcAddress or equivalent.
virtual void* GetEglLibrary() = 0;
virtual void* GetGles2Library() = 0;
virtual GLGetProcAddressProc GetGLProcAddressProc() = 0;
// Creates an EGLNativeDisplayType. Called once when initializing display.
virtual NativeDisplayType CreateDisplayType(const Size& size) = 0;
// Creates an EGLNativeWindow using previously-created DisplayType. Called
// once when initializing display.
virtual NativeWindowType CreateWindow(NativeDisplayType display_type,
const Size& size) = 0;
} // namespace chromecast