--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/egl/sfegltest/src/eglrendering.cpp	Thu Sep 30 18:43:06 2010 +0100
@@ -0,0 +1,229 @@
+// Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+
+#include <string.h>
+#include "eglrendering.h"
+#include "openvgengine.h"
+#include <hal.h>
+
+const TInt KTimerDelay = 0;
+
+
+/** Attributes to be passed into eglChooseConfig */
+const EGLint	KColorRGB565AttribList[] =
+		{
+		EGL_RED_SIZE,			5,
+		EGL_GREEN_SIZE,			6,
+		EGL_BLUE_SIZE,			5,
+		EGL_SURFACE_TYPE,		EGL_WINDOW_BIT,
+		EGL_RENDERABLE_TYPE, 	EGL_OPENVG_BIT,
+		EGL_NONE
+		};
+
+
+CEGLRendering* CEGLRendering::NewL(RWindow& aWindow, TBool aQhd)
+	{
+	CEGLRendering* self = CEGLRendering::NewLC(aWindow, aQhd);
+	CleanupStack::Pop(self);
+	return self;
+	}
+
+
+CEGLRendering* CEGLRendering::NewLC(RWindow& aWindow, TBool aQhd)
+	{
+	CEGLRendering* self = new(ELeave) CEGLRendering(aWindow);
+	CleanupStack::PushL(self);
+	self->ConstructL(aQhd);
+	return self;
+	}
+
+CEGLRendering::~CEGLRendering()
+	{
+	Stop();
+	
+	delete iTimer;
+
+	if (iContextVG!=EGL_NO_CONTEXT)
+		{
+		EGLCheckReturnError(eglDestroyContext(iDisplay,iContextVG));
+		}
+	
+	if (iSurface!=EGL_NO_SURFACE)
+		{
+		EGLCheckReturnError(eglDestroySurface(iDisplay,iSurface));
+		}
+	
+	// Call eglMakeCurrent() to ensure the surfaces and contexts are truly destroyed. 
+	EGLCheckReturnError(eglMakeCurrent(iDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT));
+
+	EGLCheckReturnError(eglTerminate(iDisplay));
+	EGLCheckReturnError(eglReleaseThread());
+
+	delete iBitmap;
+	}
+
+void CEGLRendering::Start()
+	{
+	// Start drawing the screen periodically
+	iTimer->Start(0, KTimerDelay, TCallBack(TimerCallBack,this));
+	}
+
+void CEGLRendering::Stop()
+	{
+	if(iTimer)
+		{
+		iTimer->Cancel();
+		}	
+	}
+
+void CEGLRendering::EGLCheckError()
+	{
+	EGLint error = eglGetError();
+	if(error != EGL_SUCCESS)
+		{
+		User::Panic(_L("EGL error"), error);
+		}
+	}
+
+void CEGLRendering::VGCheckError()
+	{
+	VGint error = vgGetError();
+	if(error != VG_NO_ERROR)
+		{
+		User::Panic(_L("OpenVG error"), error);
+		}
+	}
+
+void CEGLRendering::EGLCheckReturnError(EGLBoolean aBool)
+	{
+	if (!aBool)
+		{
+		User::Panic(_L("EGL return error"),eglGetError());
+ 		}
+	}
+
+
+CEGLRendering::CEGLRendering(RWindow& aWindow)
+	: iWindow(aWindow),iCount(0)
+	{
+	}
+
+/*
+ * Construct EGL objects, and OpenVG binding.
+ * 
+ * Here we collaborate with EGL to associate a session, pick and configuration, assign
+ * it to the window we have, and then bind the OpenVG rendering API to our newly created
+ * context.
+ * 
+ * In bring up terms, here is where the first EGL code entry points are called from.  Its
+ * the natural point where an EGL bringup starts debugging from, assuming the core EGL
+ * works in terms of supporting EGL sync objects (needed for boot before we get to the
+ * ESHELL command prompt).
+ */
+void CEGLRendering::ConstructL(TBool aQhd)
+    {
+	RDebug::Printf("CEGLRendering::ConstructL");
+	
+	// Refresh timer	
+	iTimer = CPeriodic::NewL(CActive::EPriorityIdle);
+	
+	const TDisplayMode dispMode = iWindow.DisplayMode();
+	const TSize windowSize(iWindow.Size());
+
+	// Create display object
+	iDisplay = eglGetDisplay(EGL_DEFAULT_DISPLAY);
+	RDebug::Printf("CEGLRendering::ConstructL 1");
+	EGLCheckError();
+
+	// Initialize display object
+	EGLCheckReturnError(eglInitialize(iDisplay, NULL, NULL));
+	RDebug::Printf("CEGLRendering::ConstructL 2");
+	
+	RDebug::Printf("Vendor string %s", eglQueryString(iDisplay, EGL_VENDOR));
+	RDebug::Printf("Version string %s", eglQueryString(iDisplay, EGL_VERSION));
+	RDebug::Printf("Version string %s", eglQueryString(iDisplay, EGL_EXTENSIONS));
+
+		
+	// Check that EGL provides the capabilities for this app.
+	TInt error = KErrNone;
+	if ( NULL == strstr(eglQueryString(iDisplay, EGL_CLIENT_APIS), "OpenVG") ) 
+		{
+		RDebug::Printf("OpenVG not listed in supported client APIs %s", eglQueryString(iDisplay, EGL_CLIENT_APIS));
+		error = KErrNotSupported;
+		}
+		
+
+	if ( NULL == strstr(eglQueryString(iDisplay, EGL_EXTENSIONS), "EGL_SYMBIAN_COMPOSITION") ) 
+		{
+		RDebug::Printf("EGL_SYMBIAN_COMPOSITION not listed in extension string %s", eglQueryString(iDisplay, EGL_EXTENSIONS));
+		error = KErrNotSupported;
+		}
+	if (error != KErrNone)
+		{
+		User::Leave(error);
+		}
+
+	EGLint numConfigs;
+	EGLConfig chosenConfig = 0;
+
+	// Choose the config to use
+	EGLCheckReturnError(eglChooseConfig(iDisplay, KColorRGB565AttribList, &chosenConfig, 1, &numConfigs));
+	RDebug::Printf("CEGLRendering::ConstructL 3");
+	if (numConfigs == 0)
+		{
+		RDebug::Printf("No matching configs found", eglQueryString(iDisplay, EGL_EXTENSIONS));
+		User::Leave(KErrNotSupported);
+		}
+	
+	// Create window surface to draw direct to.
+	EGLCheckReturnError(eglBindAPI(EGL_OPENVG_API));
+	RDebug::Printf("CEGLRendering::ConstructL 4");
+	iSurface = eglCreateWindowSurface(iDisplay, chosenConfig, &iWindow, NULL);
+	RDebug::Printf("CEGLRendering::ConstructL 5");
+	EGLCheckError();
+
+	TInt redSize, greenSize, blueSize, alphaSize;
+
+	EGLCheckReturnError(eglGetConfigAttrib(iDisplay, chosenConfig, EGL_ALPHA_SIZE, &alphaSize));
+	EGLCheckReturnError(eglGetConfigAttrib(iDisplay, chosenConfig, EGL_RED_SIZE, &redSize));
+	EGLCheckReturnError(eglGetConfigAttrib(iDisplay, chosenConfig, EGL_GREEN_SIZE, &greenSize));
+	EGLCheckReturnError(eglGetConfigAttrib(iDisplay, chosenConfig, EGL_BLUE_SIZE, &blueSize));
+	RDebug::Print(_L("EGLConfig id:%d alpha:%d red:%d green:%d blue:%d"), chosenConfig,
+			alphaSize, redSize, greenSize, blueSize);
+	RDebug::Printf("CEGLRendering::ConstructL 6");
+
+	// Create context to store surface settings
+	iContextVG = eglCreateContext(iDisplay, chosenConfig, EGL_NO_CONTEXT, NULL);
+	RDebug::Printf("CEGLRendering::ConstructL 7");
+	EGLCheckError();
+	
+	CEGLRendering::EGLCheckReturnError(eglMakeCurrent(iDisplay, iSurface, iSurface, iContextVG));
+	RDebug::Printf("CEGLRendering::ConstructL 8");
+	}
+
+
+/** Update the display */
+void CEGLRendering::UpdateDisplay()
+	{
+	// Flush colour buffer to the window surface
+	CEGLRendering::EGLCheckReturnError(eglSwapBuffers(iDisplay, iSurface));
+	}
+
+/** Callback called by refresh timer */
+TInt CEGLRendering::TimerCallBack(TAny* aDemo)
+	{
+	
+	static_cast<CEGLRendering*>(aDemo)->UpdateDisplay();
+	return KErrNone;
+	}