--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graphicsresourceservices/graphicsresourceadaptation/src/sgpixelformats.cpp	Tue Feb 02 01:47:50 2010 +0200
@@ -0,0 +1,152 @@
+// Copyright (c) 2007-2009 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 <hal.h>
+#include "sgdriverimpl.h"
+
+
+TInt SgMinDataStride(TInt aWidth, TUidPixelFormat aPixelFormat)
+	{
+	switch (aPixelFormat)
+		{
+	case EUidPixelFormatXRGB_8888:
+	case EUidPixelFormatBGRX_8888:
+	case EUidPixelFormatXBGR_8888:
+	case EUidPixelFormatBGRA_8888:
+	case EUidPixelFormatARGB_8888:
+	case EUidPixelFormatABGR_8888:
+	case EUidPixelFormatARGB_8888_PRE:
+	case EUidPixelFormatABGR_8888_PRE:
+	case EUidPixelFormatBGRA_8888_PRE:
+	case EUidPixelFormatARGB_2101010:
+	case EUidPixelFormatABGR_2101010:
+		return aWidth * 4;
+	case EUidPixelFormatBGR_888:
+	case EUidPixelFormatRGB_888:
+		return aWidth * 3;
+	case EUidPixelFormatRGB_565:
+	case EUidPixelFormatBGR_565:
+	case EUidPixelFormatARGB_1555:
+	case EUidPixelFormatXRGB_1555:
+	case EUidPixelFormatARGB_4444:
+	case EUidPixelFormatARGB_8332:
+	case EUidPixelFormatBGRX_5551:
+	case EUidPixelFormatBGRA_5551:
+	case EUidPixelFormatBGRA_4444:
+	case EUidPixelFormatBGRX_4444:
+	case EUidPixelFormatAP_88:
+	case EUidPixelFormatXRGB_4444:
+	case EUidPixelFormatXBGR_4444:
+		return aWidth * 2;
+	case EUidPixelFormatRGB_332:
+	case EUidPixelFormatA_8:
+	case EUidPixelFormatBGR_332:
+	case EUidPixelFormatP_8:
+		return aWidth;
+	case EUidPixelFormatP_4:
+		return (aWidth + 1) / 2;
+	case EUidPixelFormatP_2:
+		return (aWidth + 3) / 4;
+	case EUidPixelFormatP_1:
+		return (aWidth + 7) / 8;
+	default:
+		return KErrNotSupported;
+		}
+	}
+
+
+const TUint32 KSgSupportedConstantSources = ESgUsageDirectGdiSource
+	| ESgUsageOpenGlesTexture2D | ESgUsageOpenVgImage | ESgUsageOpenGles2Texture2D | ESgUsageWindowGcSource;
+const TUint32 KSgSupportedCpuSources = ESgUsageDirectGdiSource | ESgUsageCompositionSource
+	| ESgUsageOpenGlesTexture2D | ESgUsageOpenVgImage | ESgUsageOpenGles2Texture2D | ESgUsageWindowGcSource;
+const TUint32 KSgSupportedOffScreenSources = ESgUsageDirectGdiSource | ESgUsageCompositionSource | ESgUsageScreenSource
+	| ESgUsageOpenGlesTexture2D | ESgUsageOpenVgImage | ESgUsageOpenGles2Texture2D | ESgUsageWindowGcSource;
+
+const TUidPixelFormat KSgSupportedOpaqueTargetFormat = EUidPixelFormatXRGB_8888;
+const TUidPixelFormat KSgSupportedAlphaTargetFormat = EUidPixelFormatARGB_8888_PRE;
+
+#ifdef SYMBIAN_GRAPHICS_USE_NUMA
+const TSgCpuAccess KSgSupportedOffScreenCpuAccess = ESgCpuAccessNone;
+#else
+const TSgCpuAccess KSgSupportedOffScreenCpuAccess = ESgCpuAccessReadWrite;
+#endif
+
+const TSgPixelFormatTableEntry KSgAnyScreenPixelFormatTableEntries[] =
+	{
+	// Support for constant images
+	{EUidPixelFormatRGB_565,       KSgSupportedConstantSources, ESgCpuAccessNone, KSgScreenIdAny},
+	{EUidPixelFormatXRGB_8888,     KSgSupportedConstantSources, ESgCpuAccessNone, KSgScreenIdAny},
+	{EUidPixelFormatARGB_8888,     KSgSupportedConstantSources, ESgCpuAccessNone, KSgScreenIdAny},
+	{EUidPixelFormatARGB_8888_PRE, KSgSupportedConstantSources, ESgCpuAccessNone, KSgScreenIdAny},
+	};
+
+const TSgPixelFormatTableEntry KSgPerScreenPixelFormatTableEntries[] =
+	{
+	// Support for CPU rendering
+	{EUidPixelFormatRGB_565,       KSgSupportedCpuSources, ESgCpuAccessReadWrite, KSgScreenIdMain},
+	{EUidPixelFormatXRGB_8888,     KSgSupportedCpuSources, ESgCpuAccessReadWrite, KSgScreenIdMain},
+	{EUidPixelFormatARGB_8888,     KSgSupportedCpuSources, ESgCpuAccessReadWrite, KSgScreenIdMain},
+	{EUidPixelFormatARGB_8888_PRE, KSgSupportedCpuSources, ESgCpuAccessReadWrite, KSgScreenIdMain},
+
+	// Support for off-screen rendering
+	{KSgSupportedOpaqueTargetFormat, KSgSupportedOffScreenSources|ESgUsageDirectGdiTarget|ESgUsageOpenGlesTarget|ESgUsageOpenGles2Target|ESgUsageOpenVgTarget, KSgSupportedOffScreenCpuAccess, KSgScreenIdMain},
+	{KSgSupportedAlphaTargetFormat,  KSgSupportedOffScreenSources|ESgUsageDirectGdiTarget|ESgUsageOpenGlesTarget|ESgUsageOpenGles2Target|ESgUsageOpenVgTarget, KSgSupportedOffScreenCpuAccess, KSgScreenIdMain},
+	{EUidPixelFormatRGB_565,         KSgSupportedOffScreenSources|ESgUsageDirectGdiTarget|ESgUsageOpenGlesTarget|ESgUsageOpenGles2Target|ESgUsageOpenVgTarget, KSgSupportedOffScreenCpuAccess, KSgScreenIdMain},
+
+	{KSgSupportedOpaqueTargetFormat, KSgSupportedOffScreenSources|ESgUsageCompositionTarget, KSgSupportedOffScreenCpuAccess, KSgScreenIdMain},
+	{KSgSupportedAlphaTargetFormat,  KSgSupportedOffScreenSources|ESgUsageCompositionTarget, KSgSupportedOffScreenCpuAccess, KSgScreenIdMain},
+	{EUidPixelFormatRGB_565,         KSgSupportedOffScreenSources|ESgUsageCompositionTarget, KSgSupportedOffScreenCpuAccess, KSgScreenIdMain},
+
+	{KSgSupportedOpaqueTargetFormat, KSgSupportedOffScreenSources|ESgUsageEglCopyBuffersTarget, KSgSupportedOffScreenCpuAccess, KSgScreenIdMain},
+	{KSgSupportedAlphaTargetFormat,  KSgSupportedOffScreenSources|ESgUsageEglCopyBuffersTarget, KSgSupportedOffScreenCpuAccess, KSgScreenIdMain},
+	{EUidPixelFormatRGB_565,         KSgSupportedOffScreenSources|ESgUsageEglCopyBuffersTarget, KSgSupportedOffScreenCpuAccess, KSgScreenIdMain},
+	};
+
+
+TInt XSgDriverImpl::ConstructPixelFormatTable()
+	{
+	TInt numberOfScreens;
+	TInt err = HAL::Get(HAL::EDisplayNumberOfScreens, numberOfScreens);
+	if (err != KErrNone)
+		{
+		return err;
+		}
+	for (TInt i = 0; i < sizeof(KSgAnyScreenPixelFormatTableEntries) / sizeof(TSgPixelFormatTableEntry); ++i)
+		{
+		RHeap* prevHeap = User::SwitchHeap(iHeap);
+		err = iPixelFormatTable.Append(KSgAnyScreenPixelFormatTableEntries[i]);
+		User::SwitchHeap(prevHeap);
+		if (err != KErrNone)
+			{
+			return err;
+			}
+		}
+	for (TInt screenId = 0; screenId < numberOfScreens; ++screenId)
+		{
+		for (TInt i = 0; i < sizeof(KSgPerScreenPixelFormatTableEntries) / sizeof(TSgPixelFormatTableEntry); ++i)
+			{
+			TSgPixelFormatTableEntry entry = KSgPerScreenPixelFormatTableEntries[i];
+			entry.iScreenId = screenId;
+			RHeap* prevHeap = User::SwitchHeap(iHeap);
+			err = iPixelFormatTable.Append(entry);
+			User::SwitchHeap(prevHeap);
+			if (err != KErrNone)
+				{
+				return err;
+				}
+			}
+		}
+	return KErrNone;
+	}