sl@0: // Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of the License "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: // T_VIDEOMEMORY.CPP
sl@0: // Overview:
sl@0: // Test the video driver kernel extension that provides chunk handle to access video memory. 
sl@0: // This executable is a second process that is started by the main t_videomemory test process.
sl@0: // API Information:
sl@0: // HAL, UserSvr
sl@0: // Details:
sl@0: // - Check that we can get a chunk and that we can read/write the memory belonging to that chunk.
sl@0: // - When this process exits, the main process will check that the value has changed in it's copy 
sl@0: // - of the chunk.  
sl@0: // Platforms/Drives/Compatibility:
sl@0: // All.
sl@0: // Assumptions/Requirement/Pre-requisites:
sl@0: // Failures and causes:
sl@0: // Base Port information:
sl@0: // 
sl@0: //
sl@0: 
sl@0: #include <e32test.h>
sl@0: #include <videodriver.h>
sl@0: #include <hal.h>
sl@0: #include <e32svr.h>
sl@0: #include <dispchannel.h>
sl@0: #include "t_videomemory.h"
sl@0: 
sl@0: LOCAL_D RTest test(_L("T_VIDEOMEMPROCESS"));
sl@0: 
sl@0: #ifndef __WINS__
sl@0: #define DUMP(x) test.Printf(_L(#x"= %d =0x%08x\n"), x, x)
sl@0: #endif
sl@0: 
sl@0: 
sl@0: LOCAL_C TInt RunTestsForScreen(TInt aScreenID)
sl@0: 	{
sl@0: 	TInt ret = KErrNone;
sl@0: 	
sl@0: 	test.Next(_L("Checking Display Handle"));
sl@0: 	// Second basic test. Use the HAL to fetch a handle
sl@0: 	// to the display memory. 
sl@0: 	// Check that the handle is not zero. 
sl@0: 	// Get the base-address of the chunk. 
sl@0: 	// Write this base address with a new value.
sl@0: 	// Read with the chunk base address to see that teh new value is there. 
sl@0: 	// Read the memory address from the above test and check that it changed 
sl@0: 	// to the new value.
sl@0: 	// Note that the memory address from above test MAY NOT BE SET - so 
sl@0: 	// check to see if it's non-zero first.
sl@0: 		
sl@0: 	TInt handle = 0;
sl@0: 	volatile TUint32 *pChunkBase = 0;
sl@0: 	ret = HAL::Get(aScreenID, HALData::EDisplayMemoryHandle,handle);
sl@0: 	test ((KErrNone == ret || KErrNotSupported == ret));
sl@0: 	if (KErrNone == ret)
sl@0: 		{
sl@0: 		test(0 != handle);
sl@0: 		RChunk chunk;
sl@0: 		ret = chunk.SetReturnedHandle(handle);
sl@0: 	    test(KErrNone == ret);
sl@0: 		if (KErrNone != ret)
sl@0: 			{
sl@0: 			return ret;
sl@0: 			}
sl@0: 		
sl@0: 		pChunkBase = reinterpret_cast<TUint32 *>(chunk.Base());
sl@0: 		test.Printf(_L("Display Memory Address = %08x\n"), reinterpret_cast<TInt>(pChunkBase));
sl@0: 		// Now check that we can read and write the memory that the chunk holds:
sl@0: 		// First check that it contains what we expect. 
sl@0: 		test(KTestValue3 == *pChunkBase);
sl@0: 
sl@0: 		// Now check that we can CHANGE it. 
sl@0: 		*pChunkBase = KTestValue4;
sl@0: 		test(KTestValue4 == *pChunkBase);
sl@0: 		}
sl@0: 
sl@0: 	return KErrNone;
sl@0: 	}
sl@0: 
sl@0: 
sl@0: 
sl@0: GLDEF_C TInt E32Main()
sl@0: //
sl@0: //
sl@0:     {
sl@0: 	test.Title();
sl@0: 
sl@0: #if defined(__EPOC32__) && defined(__CPU_X86)
sl@0: 	test.Printf(_L("Doesn't run on X86\n"));
sl@0: #else
sl@0: 	TInt ret = KErrNone;
sl@0: 	
sl@0: 	TInt screen;
sl@0: 	User::GetTIntParameter(12, screen);
sl@0: 	
sl@0: 	test.Start(_L("Testing Video Memory HAL interfaces (second process)"));
sl@0: 
sl@0: 	//Hack: Only use screen 0 for now - use passed argument(s) later on. 
sl@0: 	ret = RunTestsForScreen(screen);
sl@0: 	test((ret == KErrNone));
sl@0: #endif
sl@0: 	
sl@0: 	return KErrNone;
sl@0: }