author | William Roberts <williamr@symbian.org> |
Fri, 02 Apr 2010 11:19:14 +0100 | |
branch | NewGraphicsArchitecture |
changeset 27 | 525ea837ea6b |
parent 0 | 5d03bc08d59c |
permissions | -rw-r--r-- |
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// Copyright (c) 2003-2009 Nokia Corporation and/or its subsidiary(-ies). |
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// All rights reserved. |
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// This component and the accompanying materials are made available |
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// under the terms of "Eclipse Public License v1.0" |
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// which accompanies this distribution, and is available |
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// at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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// |
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// Initial Contributors: |
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// Nokia Corporation - initial contribution. |
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// |
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// Contributors: |
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// |
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// Description: |
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// |
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#include "GraphicsAccelerator.h" |
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LOCAL_D const TGraphicsAcceleratorCaps HardwareAcceleratorCapabilities = |
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{ |
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sizeof(TGraphicsAcceleratorCaps), //TInt iStructureSize; // The size of this class |
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1, //TInt iVersion; // == 1 to specify current API |
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{0} //Tint iVendorUid; // Optional ID |
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// Default values of zero... |
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}; |
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EXPORT_C CHardwareGraphicsAccelerator* CHardwareGraphicsAccelerator::NewL(RHardwareBitmap /*aBitmap*/) |
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/** |
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Allocates and constructs an instance of a derived class and initialises its |
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capabilities. |
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@param aBitmap The hardware bitmap for the accelerator to draw to. |
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@return Pointer to the initialised graphics accelerator object. |
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@see TGraphicsAcceleratorCaps::iDisplayModes |
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@leave KErrNoMemory There is no memory to allocate the graphics accelerator |
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KErrNotSupported There is no graphics accelerator supporting the display mode given by the bitmap parameter |
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*/ |
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{ |
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User::Leave(KErrNotSupported) ; |
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return NULL ; |
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} |
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EXPORT_C const TGraphicsAcceleratorCaps* CHardwareGraphicsAccelerator::GenericCapabilities() |
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/** |
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Gets the generic capabilities of the accelerator, including which display modes |
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are supported for the bitmap passed to NewL(). |
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Generic capabilities apply to all hardware graphics accelerators on the device. |
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The function is static, so it can be used to find out the capabilities of |
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graphics accelerators before deciding on whether or not to create one. |
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The CGraphicsAccelerator::Capabilities() function provides information about |
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the capabilities of a particular graphics accelerator. |
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As capabilities may vary depending on the display mode of a bitmap, this method |
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should indicate as supported any features which are only available in some |
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display modes. |
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@return Generic capabilities for hardware graphics accelerators. |
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*/ |
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{ |
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return &HardwareAcceleratorCapabilities ; |
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} |
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