BansheeEngine/Source/BansheeGLRenderAPI/Win32/BsWin32Context.cpp

//********************************** Banshee Engine (www.banshee3d.com) **************************************************//
//**************** Copyright (c) 2016 Marko Pintera ([email protected]). All rights reserved. **********************//
#ifndef _WIN32_WINNT
#define _WIN32_WINNT 0x0500
#endif

#include "Win32/BsWin32Context.h"
#include "Error/BsException.h"

namespace bs { namespace ct
{
	Win32Context::Win32Context(HDC hdc, HGLRC glrc, bool ownsContext):
			mHDC(hdc), mGlrc(glrc), mOwnsContext(ownsContext)
	{
	}

	Win32Context::~Win32Context()
	{
		if (mOwnsContext)
			releaseContext();
	}

	void Win32Context::setCurrent(const RenderWindow& window)
	{
		if(wglMakeCurrent(mHDC, mGlrc) != TRUE)
			BS_EXCEPT(RenderingAPIException, "wglMakeCurrent failed: " + translateWGLError());
	}

	void Win32Context::endCurrent()
	{
		if(wglMakeCurrent(0, 0) != TRUE)
			BS_EXCEPT(RenderingAPIException, "wglMakeCurrent failed: " + translateWGLError());
	}

	void Win32Context::releaseContext()
	{
		if (mGlrc != 0)
		{
			if(wglDeleteContext(mGlrc) != TRUE)
				BS_EXCEPT(RenderingAPIException, "wglDeleteContext failed: " + translateWGLError());

			mGlrc = 0;
			mHDC = 0;
		}
	}
}}