--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/uiacceltk/hitchcock/coretoolkit/rendervg10/inc/HuiVg10RenderSurface.h Tue Feb 02 07:56:43 2010 +0200
@@ -0,0 +1,188 @@
+/*
+* Copyright (c) 2006-2008 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: OpenVG 1.0 render surface.
+*
+*/
+
+
+
+#ifndef __HUIVG10RENDERSURFACE_H__
+#define __HUIVG10RENDERSURFACE_H__
+
+
+#include <e32base.h>
+
+#include <EGL/egl.h>
+
+#include "HuiRenderSurface.h"
+#include "uiacceltk/HuiSessionObject.h"
+
+
+/* Forward declarations. */
+class CHuiDisplay;
+
+
+/**
+ * The render surface is a destination where rendered graphics will ultimately
+ * end up. This may be, e.g., the display frame buffer or a bitmap in memory.
+ */
+NONSHARABLE_CLASS(CHuiVg10RenderSurface) : public CBase, public MHuiRenderSurface,
+ public MHuiSessionObject
+ {
+public:
+
+ /* Constructors and destructor. */
+
+ static CHuiVg10RenderSurface* NewL(CHuiDisplay& aDisplay);
+
+ static CHuiVg10RenderSurface* NewLC(CHuiDisplay& aDisplay);
+
+ virtual ~CHuiVg10RenderSurface();
+
+
+ /* Methods, implemets MHuiRenderSurface interface. */
+
+ TUint Flags() const;
+
+ TBool GetScreenOrigin(TPoint& aOrigin) const;
+
+ TSize Size() const;
+
+ void SetSizeL(const TSize& aSize);
+
+ virtual void MakeCurrent();
+
+ virtual void SwapBuffers();
+
+ virtual void BindTexture(TInt aTextureUnit,
+ const MHuiSegmentedTexture& aTexture,
+ TInt aSegment);
+
+ /**
+ * Handles change in surface visibility. This method is called if surface is either
+ * hidden or shown. This default implementation ignores visibility events.
+ *
+ * @param aIsVisible ETrue if surface becomes visible. EFalse if surface is hidden.
+ */
+ virtual void HandleVisibilityEvent(TBool aIsVisible);
+
+ virtual void Release();
+
+ virtual void RestoreL();
+
+ virtual void HandleDisplayUsageChangeL();
+
+ // These methods are not really used, since opengles renderer doesn't
+ // support dirty region handling or symbian graphics context!
+ virtual void SetDirtyRect(const TRect& aRect);
+ virtual MHuiTargetBitmap* BackBuffer();
+ virtual CFbsBitGc* Gc();
+
+ /**
+ * Provides expandability, helps keeping the binary compatibility. Since virtual
+ * table is now exported and this class is dll derivable and the implementation
+ * is more difficult to change, hence this method, which can provide additional
+ * extension APIs.
+ *
+ * @param aExtensionUid UID, which is being used for recognizing the extension
+ * @param aExtensionParams Return pointer to the extension API, once recognized from the extension uid
+ */
+ virtual void RenderSurfaceExtension(const TUid& aExtensionUid, TAny** aExtensionParams);
+
+ /**
+ * Static method for returning verbose error message strings according to the given
+ * EGL error value. This can be used to create meaningful error messages in
+ * HUIToolkit environments that use OpenVG rendering.
+ *
+ * @param aErrorCode EGL Error code retrieved by eglGetError - method.
+ * @return Verbose error message as a TDesC reference object.
+ */
+ static const TDesC& EglErrorMessage(TInt aErrorCode);
+
+ // Implementation of MHuiSessionObject
+
+ /**
+ * Gets the object type.
+ */
+ TType Type() const;
+
+ /**
+ * Gets the session id for object.
+ */
+ TInt SessionId() const;
+
+ /**
+ * Sets the session id for object.
+ */
+ void SetSessionId(TInt aSessionId);
+
+ /**
+ * @return the currently bound texture image.
+ */
+ const MHuiSegmentedTexture* BoundTexture() const;
+
+protected:
+
+ /* Constructors. */
+
+ CHuiVg10RenderSurface(CHuiDisplay& aDisplay);
+
+ void ConstructL();
+
+ /**
+ * Determines the display to which this rendering surface is attached.
+ *
+ * @return Display.
+ */
+ CHuiDisplay& Display() const;
+
+ /**
+ * Determine config for the owner display.
+ */
+ EGLConfig DetermineConfig();
+
+ /**
+ * Create an EGL rendering surface.
+ */
+ EGLSurface CreateSurface(EGLConfig aConfig);
+
+
+protected:
+
+ /** Display that owns the surface. */
+ CHuiDisplay* iDisplay;
+
+ /** The display. */
+ EGLDisplay iEglDisplay;
+
+ /** The rendering context. */
+ EGLContext iEglContext;
+
+ /** The window where the graphics are drawn. */
+ EGLSurface iEglSurface;
+
+ /** Size of the rendering surface. */
+ TSize iSize;
+
+ /** The currently bound texture */
+ const MHuiSegmentedTexture* iBoundTexture;
+
+private:
+ /** Session id */
+ TInt iSessionId;
+
+ };
+
+
+#endif // __HUIVG10RENDERSURFACE_H__