PlatformBase.h

// Copied from sample https://github.com/Unity-Technologies/NativeRenderingPlugin/blob/master/PluginSource/source/PlatformBase.h
#pragma once

// Standard base includes, defines that indicate our current platform, etc.

#include <stddef.h>

// Which platform we are on?
// UNITY_WIN - Windows (regular win32)
// UNITY_OSX - Mac OS X
// UNITY_LINUX - Linux
// UNITY_IOS - iOS
// UNITY_TVOS - tvOS
// UNITY_ANDROID - Android
// UNITY_METRO - WSA or UWP
// UNITY_WEBGL - WebGL
#if defined(_MSC_VER) or defined(WIN32)
    #define UNITY_WIN 1
#elif defined(__APPLE__)
    #if TARGET_OS_TV
        #define UNITY_TVOS 1
    #elif TARGET_OS_IOS
        #define UNITY_IOS 1
    #else
        #define UNITY_OSX 1
    #endif
#elif defined(__ANDROID__)
	#define UNITY_ANDROID 1
#elif defined(UNITY_METRO) || defined(UNITY_LINUX) || defined(UNITY_WEBGL)
	// these are defined externally
#elif defined(__EMSCRIPTEN__)
	// this is already defined in Unity 5.6
	#define UNITY_WEBGL 1
#else
	#error "Unknown platform!"
#endif


// Which graphics device APIs we possibly support?
#if UNITY_METRO
    #define SUPPORT_D3D11 1
	#if WINDOWS_UWP
		#define SUPPORT_D3D12 1
	#endif
#elif UNITY_WIN
    #define SUPPORT_D3D11 1 // comment this out if you don't have D3D11 header/library files
    #define SUPPORT_D3D12 1 // comment this out if you don't have D3D12 header/library files
    #define SUPPORT_OPENGL_UNIFIED 1
    #define SUPPORT_OPENGL_CORE 1
    #ifndef SUPPORT_VULKAN
        #define SUPPORT_VULKAN 0 // Requires Vulkan SDK to be installed
    #endif
#elif UNITY_IOS || UNITY_TVOS || UNITY_ANDROID || UNITY_WEBGL
    #ifndef SUPPORT_OPENGL_ES
        #define SUPPORT_OPENGL_ES 1
    #endif
    #define SUPPORT_OPENGL_UNIFIED SUPPORT_OPENGL_ES
	#ifndef SUPPORT_VULKAN
		#define SUPPORT_VULKAN 0
	#endif
#elif UNITY_OSX || UNITY_LINUX
	#define SUPPORT_OPENGL_UNIFIED 1
	#define SUPPORT_OPENGL_CORE 1
#endif

#if UNITY_IOS || UNITY_TVOS || UNITY_OSX
    #define SUPPORT_METAL 1
#endif


// COM-like Release macro
#ifndef SAFE_RELEASE
    #define SAFE_RELEASE(a) if (a) { a->Release(); a = NULL; }
#endif