--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/graphicsdeviceinterface/directgdiadaptation/hwsrc/confighelper.h Tue Feb 02 01:47:50 2010 +0200
@@ -0,0 +1,78 @@
+// Copyright (c) 2008-2009 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:
+//
+
+#ifndef CONFIGHELPER_H_
+#define CONFIGHELPER_H_
+
+#include <e32def.h>
+#include <EGL/egl.h>
+
+class CFbsBitmap;
+
+/**
+Utility class to help in choosing an EGL config.
+
+@internalComponent Reference implementation.
+*/
+NONSHARABLE_CLASS(TConfigHelper)
+ {
+ /**
+ Enumeration of EGL Config Config Attribute indices into KSurfaceAttribs.
+ */
+ enum
+ {
+ EEglBufferSize = 0,
+ EEglBufferType = 2,
+ EEglRedSize = 4,
+ EEglGreenSize = 6,
+ EEglBlueSize = 8,
+ EEglAlphaSize = 10,
+ EEglLuminanceSize = 12,
+ EEglSurfaceType = 14,
+ EEglRenderableType = 16,
+ ELast,
+ };
+
+ /**
+ Enumeration of EGL Config indices into KSurfaceAttribs.
+ */
+ enum
+ {
+ EPixmapAttribsColor64K,
+ EPixmapAttribsColor16MAP,
+ EPixmapAttribsColor16MU,
+ EPixmapAttribsColor16MA,
+ EPixmapAttribsLuminance8L,
+ EPixmapAttribsLuminance1L
+ };
+
+public:
+ static TInt GetSuitablePixmapConfigIndex(EGLDisplay aDisplay, EGLConfig *aConfigs, TInt aNumConfigs, TInt aColorAttrib);
+ static TInt MatchPixelType(TInt aPixelType);
+ static TInt GetConfig(TInt aAttributeArrayIndex, EGLConfig& aResult);
+ static TInt GetConfigForFbsBitmap(const CFbsBitmap& aBitmap, EGLConfig& aResult);
+
+#ifdef _DEBUG
+ static void SupportedSurfacePixelFormatsL();
+#endif
+
+private:
+ static TBool EglAttributeMatches(EGLint aAttribute, TInt aExpected, TInt aActual);
+
+public:
+ static const EGLint KSurfaceAttribs[][19];
+ };
+
+#endif /*CONFIGHELPER_H_*/