// Copyright (c) 2009-2010 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:

//

/**

 @file

 @test

*/

#include <test/tefunit.h> // for ASSERT macros

#include <iniparser.h>

#include <e32msgqueue.h>

#include "egltest_image_multiprocess.h"

#include <test/egltestcommonconversion.h>

#include <test/egltestcommoninisettings.h>

#include <test/egltestcommonsgimageinfo.h>

#include <test/egltestcommonprocess.h>

//

// Constant definitions

//

const TInt KNumProcesses = 8;

const TInt KNumImages = 4;

#define KImageSize TSize(100,100)	// use #define to avoid global temporary constructors

/**

@SYMTestCaseID GRAPHICS-EGL-0160

@SYMTestPriority 1

@SYMPREQ 39

@SYMREQ See SGL.GT0386.401 document

@SYMTestCaseDesc

Check if EGL Implementation allows two processes to work in parallel.

A process can create an EGLImage from the same RSgImage that already has been linked to an EGLImage by another process.

@SYMTestActions

Main Process: creates an RsgImage and starts Process and Process.

Process1: Creates an EGLImage from the RsgImage previous mentioned

--------

Process2: Creates an EGLImage from the RsgImage previous mentioned and check that eglCreateImageKHR() does NOT return EGL_NO_IMAGE_KHR

--------

Process1: Closes the EGLImage

Process2: Closes the EGLImage

Main Process: Closes the RsgImage

@SYMTestExpectedResults

No errors within both processes.

No memory or handle leaks

*/

TVerdict CEglTest_EGL_Image_Multi_Process_Sibling_Basic::doTestStepL()

	{

	SetTestStepID(_L("GRAPHICS-EGL-0160"));

	SetTestStepName(KEGL_Image_Multi_Process_Sibling_Basic);

	INFO_PRINTF1(_L("Enter: CEglTest_EGL_Image_Multi_Process_Sibling_Basic::doTestStepL"));

	TBool ret = CheckForExtensionL(KEGL_RSgimage | KEGL_KHR_image_base | KEGL_KHR_image_pixmap | KVG_KHR_EGL_image);

	if(!ret)

		{

		// The extension is not supported

		RecordTestResultL();

		CloseTMSGraphicsStep();

		return TestStepResult();

		}

	// Create display object

	ASSERT_TRUE(iDisplay == EGL_NO_DISPLAY);

    GetDisplayL();

    CreateEglSessionL();

	iEglSess->InitializeL();

	iEglSess->OpenSgDriverL();

	// create a reference bitmap (we give index 0, as there's only 1 image in this test case)

	TDisplayMode bitmapMode = EglTestConversion::PixelFormatToDisplayMode(KDefaultSourceFormat);

	CFbsBitmap* bitmap = iEglSess->CreateReferenceBitmapL(bitmapMode, KImageSize, 0);

	CleanupStack::PushL(bitmap);

    // Create an RSgImage

	TSgImageInfoOpenVgImage imageInfo = TSgImageInfoOpenVgImage(KDefaultSourceFormat, KImageSize);

#ifndef SYMBIAN_GRAPHICS_EGL_SGIMAGELITE

	imageInfo.iShareable = ETrue;

#endif //SYMBIAN_GRAPHICS_EGL_SGIMAGELITE

    RSgImage sgImage;

	CleanupClosePushL(sgImage);

	ASSERT_EQUALS(sgImage.Create(imageInfo,bitmap->DataAddress(),bitmap->DataStride()), KErrNone);

	// launch 2 processes

	Test_MultiProcessL(KEglTestStepDllName, 2, TestStepName(), sgImage.Id());

	// destroy sgImage

	CleanupStack::PopAndDestroy(2, bitmap);

	// clean everything

	CleanAll();

	INFO_PRINTF1(_L("Exit: CEglTest_EGL_Image_Multi_Process_Sibling_Basic::doTestStepL"));

	RecordTestResultL();

	CloseTMSGraphicsStep();

	return TestStepResult();

	}

void CEglTest_EGL_Image_Multi_Process_Sibling_Basic::doProcessFunctionL(TInt aIdx,const TSgDrawableId& aSgId)

	{

	INFO_PRINTF2(_L("CEglTest_EGL_Image_Multi_Process_Sibling_Basic::doProcessFunctionL, Process %d"),aIdx);

	GetDisplayL();

	CreateEglSessionL(aIdx);

	iEglSess->InitializeL();

	iEglSess->OpenSgDriverL();

	RSgImage sgImageFromId;

	CleanupClosePushL(sgImageFromId);

	ASSERT_EQUALS(sgImageFromId.Open(aSgId),KErrNone);

	INFO_PRINTF2(_L("Process %d, Creating an EGLImage from the shared RSgImage"),aIdx);

	EGLImageKHR eglImage = iEglSess->eglCreateImageKhrL(iDisplay, EGL_NO_CONTEXT, EGL_NATIVE_PIXMAP_KHR, &sgImageFromId, KEglImageAttribsPreservedTrue);

	ASSERT_EGL_TRUE(eglImage != EGL_NO_IMAGE_KHR);

	CleanupStack::PopAndDestroy(&sgImageFromId);

	INFO_PRINTF2(_L("Process %d, EGLImage successfully created, now destroying it"),aIdx);

	ASSERT_EGL_TRUE(iEglSess->DestroyEGLImage(iDisplay, eglImage));

	// cleanup

	CleanAll();

	}

/**

@SYMTestCaseID GRAPHICS-EGL-0161

@SYMTestPriority 1

@SYMPREQ 39

@SYMREQ See SGL.GT0386.401 document

@SYMTestCaseDesc

Check if EGL Implementation allows two processes to work in parallel.

@SYMTestActions

Run two processes that independently perform the same actions detailed below.

This test will check for the “VG_KHR_EGL_image” extension, if it is not

supported on this platform then the test will return immediately without failure.

Create and fully construct an RSgImage object

•	Set the iUsage bits to ESgUsageBitOpenVgImage

Pass the RSgImage object into eglCreateImageKHR() with

•	The target parameter set to EGL_NATIVE_PIXMAP_KHR

•	Use the current display and EGL_NO_CONTEXT

•	Use a NULL attr_list

Check that eglCreateImageKHR() does NOT return EGL_NO_IMAGE_KHR

Use vgCreateEGLImageTargetKHR() to construct a VGImage object from the EGLImage.

•	Check for errors (VGInvalidHandle is not returned)

Create a second RSgImage, and use it to create a pixmap surface that is

compatible as a target for the VGImage to be drawn to.

•	Set the iUsage bit to ESgUsageBitOpenVgSurface

•	Use the same pixel format as the RSgImage above.

Now that a eglContext and an OpenVG context have been created, use the

OpenVG API vgClearImage to clear to a chosen colour the VGImage previously

returned by eglCreateImageKHR.

Use OpenVG to draw the just drawn VGImage to the pixmap surface currently

linked to the context.

Call eglWaitClient() to finish the above drawing instructions synchronously.

Destroy the original image data

•	Pass the VGImage into vgDestroyImage()

•	Pass the EGLImage into eglDestroyImageKHR()

•	Close the first RSgImage

•	Check that the pixmap surface contains expected pixel values using

OpenVG APIs, vgReadPixels.

Close the second RSgImage and destroy the pixmap surface

Check for memory and handle leaks

@SYMTestExpectedResults

Pixmap surface has the expected contents in both processes (within tolerance)

No memory or handle leaks

*/

TVerdict CEglTest_EGL_Image_Multi_Process_Parallel::doTestStepL()

	{

	SetTestStepID(_L("GRAPHICS-EGL-0161"));

	SetTestStepName(KEGL_Image_Multi_Process_Parallel);

	INFO_PRINTF1(_L("Enter: CEglTest_EGL_Image_Multi_Process_Parallel::doTestStepL"));

	TBool ret = CheckForExtensionL(KEGL_RSgimage | KEGL_KHR_image_base | KEGL_KHR_image_pixmap | KVG_KHR_EGL_image);

	if(!ret)

		{

		// The extension is not supported

		RecordTestResultL();

		CloseTMSGraphicsStep();

		return TestStepResult();

		}

	// launch 2 processes

	Test_MultiProcessL(KEglTestStepDllName, 2, TestStepName());

	INFO_PRINTF1(_L("Exit: CEglTest_EGL_Image_Multi_Process_Parallel::doTestStepL"));

	RecordTestResultL();

	CloseTMSGraphicsStep();

	return TestStepResult();

	}

void CEglTest_EGL_Image_Multi_Process_Parallel::doProcessFunctionL(TInt aIdx)

	{

	INFO_PRINTF2(_L("CEglTest_EGL_Image_Multi_Process_Parallel::doProcessFunctionL, Process %d"),aIdx);

	GetDisplayL();

	CreateEglSessionL(aIdx);

	iEglSess->InitializeL();

	iEglSess->OpenSgDriverL();

	// create a reference bitmap (we give index 3 for example, as there's only 1 image in this test case)

	TDisplayMode bitmapMode = EglTestConversion::PixelFormatToDisplayMode(KDefaultSourceFormat);

	CFbsBitmap* bitmap = iEglSess->CreateReferenceBitmapL(bitmapMode, KImageSize, 3);

	CleanupStack::PushL(bitmap);

	// Create an RSgImage

	INFO_PRINTF2(_L("Process %d, Creating a RSgImage having the reference bitmap's content"),aIdx);

	TSgImageInfoOpenVgImage imageInfo = TSgImageInfoOpenVgImage(KDefaultSourceFormat, KImageSize);

    RSgImage rSgImageLocal;

	CleanupClosePushL(rSgImageLocal);

	ASSERT_EQUALS(rSgImageLocal.Create(imageInfo,bitmap->DataAddress(),bitmap->DataStride()), KErrNone);

	INFO_PRINTF2(_L("Process %d, Creating an EGLImage from the shared RSgImage"),aIdx);

	EGLImageKHR eglImageLocal = iEglSess->eglCreateImageKhrL(iDisplay, EGL_NO_CONTEXT, EGL_NATIVE_PIXMAP_KHR, &rSgImageLocal, KEglImageAttribsPreservedTrue);

	ASSERT_EGL_TRUE(eglImageLocal != EGL_NO_IMAGE_KHR);

	CleanupStack::PopAndDestroy(&rSgImageLocal); 	//transferring ownership of the buffer to the EGLImage

	CleanupStack::PopAndDestroy(bitmap);

	INFO_PRINTF2(_L("Process %d, Creating a Surface and a Context bound to OpenVG"),aIdx);

	TUidPixelFormat pixelFormat = EglTestConversion::VgFormatToSgPixelFormat(KDefaultSurfaceFormat);

	TSgImageInfoOpenVgTarget imageInfo2 = TSgImageInfoOpenVgTarget(pixelFormat, KImageSize);

	// Create a pixmap surface matching the native image pixel format

	iEglSess->CreatePixmapSurfaceAndMakeCurrentAndMatchL(imageInfo2,CTestEglSession::EResourceCloseSgImageEarly);

	INFO_PRINTF2(_L("Process %d, Creating one VGImage from the EGLImage"),aIdx);

	VGImage vgImageLocal = iEglSess->vgCreateImageTargetKHR((VGeglImageKHR)eglImageLocal);

	ASSERT_VG_TRUE(vgImageLocal != VG_INVALID_HANDLE);

	ASSERT_EGL_TRUE(iEglSess->DestroyEGLImage(iDisplay, eglImageLocal));

	// Copy the source VGImage to the surface

	vgSetPixels(0, 0, vgImageLocal, 0, 0, KImageSize.iWidth, KImageSize.iHeight);

	ASSERT_TRUE(vgGetError()==VG_NO_ERROR);

	eglWaitClient();

	// destroy VGImage

	vgDestroyImage(vgImageLocal);

	ASSERT_TRUE(vgGetError()==VG_NO_ERROR);

	// we can now compare the VgImage to the one we would expect for this particular process

	CFbsBitmap* refBitmap = iEglSess->CreateReferenceBitmapL(bitmapMode, KImageSize, 3);

	CleanupStack::PushL(refBitmap);

	iEglSess->CheckVgDrawingL(KDefaultSurfaceFormat, refBitmap);

	CleanupStack::PopAndDestroy(refBitmap);

	INFO_PRINTF2(_L("Drawing successful, Process %d"),aIdx);

	// cleanup

	CleanAll();

	}

/**

@SYMTestCaseID GRAPHICS-EGL-0162

@SYMTestPriority 1

@SYMPREQ 39

@SYMREQ See SGL.GT0386.401 document

@SYMTestCaseDesc

Check if EGL Implementation allows two processes to work in parallel.

A process can create an EGLImage from the same RSgImage that already has been linked to an EGLImage by another process.

Both process can create a VGImage from it.

Another process uses the VGImage as a target

One process uses the VGImage as a source being able to see the drawing done by the other process

@SYMTestActions

Main Process: creates an RsgImage and starts Process and Process.

Process1: Creates an egl context and a pizmap surface linked to it. Creates an EGLImage from the RsgImage previous mentioned. Creates a VGImage from the EGLImage.

Process2: Creates an egl context and a pizmap surface linked to it. Creates an EGLImage from the RsgImage previous mentioned. Creates a VGImage from the EGLImage.

Process1: Changes the contents of the VGImage

--------

Process1: Closes the VGImage and the EGLImage

Process2: Draws the VGImage to the surface and checks if the contets match the reference bitmap plus the chages made by the first process.

Process2: Closes the VGImage and the EGLImage

Main Process: Closes the RsgImage

@SYMTestExpectedResults

No errors within both processes.

The content of the pixmap surface will match the one of the reference bitmap changed by the first process.

No memory or handle leaks.

*/

TVerdict CEglTest_EGL_Image_Multi_Process_Sibling_CheckContents::doTestStepL()

	{

	SetTestStepID(_L("GRAPHICS-EGL-0162"));

	SetTestStepName(KEGL_Image_Multi_Process_Sibling_CheckContents);

	INFO_PRINTF1(_L("Enter: CEglTest_EGL_Image_Multi_Process_Sibling_CheckContents::doTestStepL"));

	TBool ret = CheckForExtensionL(KEGL_RSgimage | KEGL_KHR_image_base | KEGL_KHR_image_pixmap | KVG_KHR_EGL_image);

	if(!ret)

		{

		// The extension is not supported

		RecordTestResultL();

		CloseTMSGraphicsStep();

		return TestStepResult();

		}

	// Create display object

	ASSERT_TRUE(iDisplay == EGL_NO_DISPLAY);

    GetDisplayL();

    CreateEglSessionL();

	iEglSess->InitializeL();

	iEglSess->OpenSgDriverL();

	// create a reference bitmap (we give index 0, as there's only 1 image in this test case)

	TDisplayMode bitmapMode = EglTestConversion::PixelFormatToDisplayMode(KDefaultSourceFormat);

	CFbsBitmap* bitmap = iEglSess->CreateReferenceBitmapL(bitmapMode, KImageSize, 0);

	CleanupStack::PushL(bitmap);

    // Create an RSgImage

	TSgImageInfoOpenVgImage imageInfo = TSgImageInfoOpenVgImage(KDefaultSourceFormat, KImageSize);

#ifndef SYMBIAN_GRAPHICS_EGL_SGIMAGELITE

	imageInfo.iShareable = ETrue;

#endif //SYMBIAN_GRAPHICS_EGL_SGIMAGELITE

    RSgImage sgImage;

	CleanupClosePushL(sgImage);

	ASSERT_EQUALS(sgImage.Create(imageInfo,bitmap->DataAddress(),bitmap->DataStride()), KErrNone);

	// launch 2 processes

	Test_MultiProcessL(KEglTestStepDllName, 2, TestStepName(), sgImage.Id());

	// destroy sgImage

	CleanupStack::PopAndDestroy(&sgImage);

	CleanupStack::PopAndDestroy(bitmap);

	// clean everything

	CleanAll();

	INFO_PRINTF1(_L("Exit: CEglTest_EGL_Image_Multi_Process_Sibling_CheckContents::doTestStepL"));

    RecordTestResultL();

	CloseTMSGraphicsStep();

	return TestStepResult();

	}

void CEglTest_EGL_Image_Multi_Process_Sibling_CheckContents::doProcessFunctionL(TInt aIdx,const TSgDrawableId& aSgId)

	{

	INFO_PRINTF2(_L("CEglTest_EGL_Image_Multi_Process_Sibling_CheckContents::doProcessFunctionL, Process %d"),aIdx);

	GetDisplayL();

	CreateEglSessionL(aIdx);

	iEglSess->InitializeL();

	iEglSess->OpenSgDriverL();

	RSgImage sgImageFromId;

	CleanupClosePushL(sgImageFromId);

	ASSERT_EQUALS(sgImageFromId.Open(aSgId),KErrNone);

	INFO_PRINTF2(_L("Process %d, Creating an EGLImage from the shared RSgImage"),aIdx);

	EGLImageKHR eglImageLocal = iEglSess->eglCreateImageKhrL(iDisplay, EGL_NO_CONTEXT, EGL_NATIVE_PIXMAP_KHR, &sgImageFromId, KEglImageAttribsPreservedTrue);

	ASSERT_EGL_TRUE(eglImageLocal != EGL_NO_IMAGE_KHR);

	CleanupStack::PopAndDestroy(&sgImageFromId);

	INFO_PRINTF2(_L("Process %d, Creating a Surface and a Context bound to OpenVG"),aIdx);

	TUidPixelFormat pixelFormat = EglTestConversion::VgFormatToSgPixelFormat(KDefaultSurfaceFormat);

	TSgImageInfoOpenVgTarget imageInfo = TSgImageInfoOpenVgTarget(pixelFormat, KImageSize);

	// Create a pixmap surface matching the native image pixel format

	iEglSess->CreatePixmapSurfaceAndMakeCurrentAndMatchL(imageInfo,CTestEglSession::EResourceCloseSgImageEarly);

	INFO_PRINTF2(_L("Process %d, Creating one VGImage from the EGLImage"),aIdx);

	VGImage vgImageLocal = iEglSess->vgCreateImageTargetKHR((VGeglImageKHR)eglImageLocal);

	ASSERT_VG_TRUE(vgImageLocal != VG_INVALID_HANDLE);

	ASSERT_EGL_TRUE(iEglSess->DestroyEGLImage(iDisplay, eglImageLocal));

	if(aIdx == 0)

		{

		TDisplayMode bitmapMode = EglTestConversion::PixelFormatToDisplayMode(KDefaultSourceFormat);

		CFbsBitmap* bitmap = iEglSess->CreateReferenceBitmapL(bitmapMode, KImageSize, 4);

    	// Add pixel data to the VGImage reference from the bitmap reference.

        // Mind the fact that CFbsBitmap and VGImages use different coordinates origin!

		TSize bitmapSize = bitmap->SizeInPixels();

    	TUint8* address = reinterpret_cast<TUint8*>(bitmap->DataAddress());

    	TInt stride = bitmap->DataStride();

    	address += (bitmapSize.iHeight - 1) * stride;

        vgImageSubData(vgImageLocal, address, -stride, KDefaultSurfaceFormat, 0,0, bitmapSize.iWidth, bitmapSize.iHeight);

		delete bitmap;

		bitmap = NULL;

		ASSERT_TRUE(vgGetError()==VG_NO_ERROR);

		eglWaitClient();

		}

	// Wait for both processes to reach this point (process 0 will have updated the VGImage)

	Rendezvous(aIdx);

	if(aIdx == 1)

		{

		INFO_PRINTF2(_L("Process %d, Drawing the VGImage to the current surface"),aIdx);

		// Copy the source VGImage to the surface

    	vgSetPixels(0, 0, vgImageLocal, 0, 0, KImageSize.iWidth, KImageSize.iHeight);

		ASSERT_TRUE(vgGetError()==VG_NO_ERROR);

		eglWaitClient();

		// we can now compare the VgImage to the one we expect after changing it in the other process

		TDisplayMode bitmapMode = EglTestConversion::PixelFormatToDisplayMode(KDefaultSourceFormat);

		CFbsBitmap* refBitmap = iEglSess->CreateReferenceBitmapL(bitmapMode, KImageSize, 4);

		CleanupStack::PushL(refBitmap);

		iEglSess->CheckVgDrawingL(KDefaultSurfaceFormat, refBitmap);

		CleanupStack::PopAndDestroy(refBitmap);

		INFO_PRINTF2(_L("Process %d, Drawing successful"),aIdx);

		}

	// destroy VGImage

	vgDestroyImage(vgImageLocal);

	ASSERT_TRUE(vgGetError()==VG_NO_ERROR);

	// cleanup

	CleanAll();

	}

/**

@SYMTestCaseID GRAPHICS-EGL-0350

@SYMTestPriority 1

@SYMPREQ 2637

@SYMTestCaseDesc

Check sharing SgImage between 2 processes where a writer process populates SgImage through VgImage and a reader process draws SgImage to window surface.

@SYMTestActions

Main Process: starts Process1 and Process2.

Process1: Creates an RsgImage and passes RsgImage ID to process2. Creates an egl context and a pixmap surface linked to it. Creates an EGLImage from the RsgImage previous mentioned. Creates a VGImage from the EGLImage.

Process2: Creates an RsgImage using RsgImage ID passed into it. Creates an egl context and a pixmap surface linked to it. Creates an EGLImage from the RsgImage previous mentioned. Creates a VGImage from the EGLImage.

--------

Process2: Draws the VGImage to the surface before Process1 changes the contents of the VGImage.

--------

Process1: Changes the contents of the VGImage

--------

Process2: Draws the VGImage to the surface after Process1 changes the contents of the VGImage and checks if the contets match the reference bitmap plus the chages made by the process1.

Process1: Closes the VGImage, the EGLImage, the RsgImage.

Process2: Closes the VGImage, the EGLImage, the RsgImage.

@SYMTestExpectedResults

No errors within both processes.

The content of the pixmap surface will match the one of the reference bitmap changed by the first process.

No memory or handle leaks.

*/

TVerdict CEglTest_EGL_Image_Multi_Process_VgImage_Source::doTestStepL()

    {

    SetTestStepID(_L("GRAPHICS-EGL-0350"));

	SetTestStepName(KEGL_Image_Multi_Process_VgImage_Source);

	INFO_PRINTF1(_L("Enter: CEglTest_EGL_Image_Multi_Process_VgImage_Source::doTestStepL"));

	TBool ret = CheckForExtensionL(KEGL_RSgimage | KEGL_KHR_image_base | KEGL_KHR_image_pixmap | KVG_KHR_EGL_image);

	if(!ret)

		{

		// The extension is not supported

		RecordTestResultL();

		CloseTMSGraphicsStep();

		return TestStepResult();

		}

	// launch 2 processes

	Test_MultiProcessL(KEglTestStepDllName, 2, TestStepName());

    INFO_PRINTF1(_L("Exit: CEglTest_EGL_Image_Multi_Process_VgImage_Source::doTestStepL"));

    RecordTestResultL();

    CloseTMSGraphicsStep();

    return TestStepResult();

    }

void CEglTest_EGL_Image_Multi_Process_VgImage_Source::doProcessFunctionL(TInt aIdx)

    {

    INFO_PRINTF2(_L("CEglTest_EGL_Image_Multi_Process_VgImage_Source::doProcessFunctionL, Process %d"),aIdx);

	GetDisplayL();

	CreateEglSessionL(aIdx);

	iEglSess->InitializeL();

	iEglSess->OpenSgDriverL();

    RMsgQueue<TSgDrawableId> messageQueue;

    User::LeaveIfError(messageQueue.Open(EProcSlotMsgQueueSgId, EOwnerProcess));

    CleanupClosePushL(messageQueue);

    RSgImage rSgImageLocal;

	if(aIdx == 0)

        {

    	// create a reference bitmap (we give index 0, as there's only 1 image in this test case)

    	TDisplayMode bitmapMode = EglTestConversion::PixelFormatToDisplayMode(KDefaultSourceFormat);

    	CFbsBitmap* bitmap = iEglSess->CreateReferenceBitmapL(bitmapMode, KImageSize, 0);

    	CleanupStack::PushL(bitmap);

    	// Create an RSgImage

    	INFO_PRINTF2(_L("Process %d, Creating a RSgImage having the reference bitmap's content"),aIdx);

    	TSgImageInfoOpenVgImage imageInfo = TSgImageInfoOpenVgImage(KDefaultSourceFormat, KImageSize);

#ifndef SYMBIAN_GRAPHICS_EGL_SGIMAGELITE

    	imageInfo.iShareable = ETrue;

#endif

    	ASSERT_EQUALS(rSgImageLocal.Create(imageInfo,bitmap->DataAddress(),bitmap->DataStride()), KErrNone);

        CleanupStack::PopAndDestroy(bitmap);

        INFO_PRINTF2(_L("Process %d, Sending SgImage ID to other process..."), aIdx);

        messageQueue.SendBlocking(rSgImageLocal.Id());

        }

    else if(aIdx == 1)

        {

        INFO_PRINTF2(_L("Process %d, Receiving SgImage ID from other process..."), aIdx);

        TSgDrawableId sgImageId;

        messageQueue.ReceiveBlocking(sgImageId);

        ASSERT_EQUALS(rSgImageLocal.Open(sgImageId), KErrNone);

        }

	// Wait for both processes to reach this point

    Rendezvous(aIdx);

    INFO_PRINTF2(_L("Process %d, Creating an EGLImage from the shared RSgImage"),aIdx);