author | MattD <mattd@symbian.org> |
Mon, 08 Feb 2010 18:18:38 +0000 | |
branch | NewGraphicsArchitecture |
changeset 2 | 31d73acc5459 |
parent 0 | 5d03bc08d59c |
permissions | -rw-r--r-- |
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// Copyright (c) 2007-2009 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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/** |
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@file |
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@publishedPartner |
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@prototype |
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*/ |
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#ifndef SGIMAGEADAPTER_H |
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#define SGIMAGEADAPTER_H |
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#include <graphics/sgresourceadapter.h> |
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#include <graphics/sgimage.h> |
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/** |
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@publishedPartner |
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@prototype |
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@deprecated |
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This interface must be implemented by all the user-side objects in the adaptation |
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layer of the Graphics subsystem which are referenced by instances of RSgImage. |
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The interface between the user-side and the kernel-side parts of the adaptation |
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layer is outside the scope of the specification of the Graphics Resource API. |
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@see RSgImage |
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*/ |
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class MSgImageAdapter: public MSgDrawableAdapter |
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{ |
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public: |
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/** |
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@publishedPartner |
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@prototype |
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@deprecated |
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Retrieves the values of the attributes of the image represented by this adapter |
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object. |
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@param aInfo On input, the globally unique identifiers of the user-defined |
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attributes to be retrieved from the image, if any. On return, the values |
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of the attributes of the image and the values of the selected user-defined |
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attributes. |
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@pre If aInfo.iUserAttributes is not null then it points to an array of |
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aInfo.iUserAttributeCount elements with globally unique identifiers |
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corresponding to user-defined attributes attached to the image. |
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@return KErrNone if successful. |
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@return KErrNotFound if any of the user-defined attributes to be retrieved from |
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the image cannot be found. |
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@see RSgImage::GetInfo() |
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*/ |
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virtual TInt GetInfo(TSgImageInfo& aInfo) const = 0; |
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/** |
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@publishedPartner |
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@prototype |
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@deprecated |
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Temporarily makes the pixel data of the image represented by this adapter object |
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accessible for reading by the CPU. |
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@param aDataAddress On return, the base address of the pixel data in the address |
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space of the calling process. |
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@param aDataStride On return, the number of bytes between rows of the pixel data. |
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@pre The image is not mapped yet. |
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@pre The image was created with CPU access ESgCpuAccessReadOnly or |
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ESgCpuAccessReadWrite. |
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@pre The image was created by the calling process. |
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@post The pixel data of the image is directly accessible in the address space |
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of the calling process for reading only, until Unmap() is called. |
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@return KErrNone if successful. |
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@return KErrInUse if the image is already mapped or in exclusive use by the GPU. |
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@return KErrAccessDenied if the image was not created with CPU access |
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ESgCpuAccessReadOnly or ESgCpuAccessReadWrite. |
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@return KErrPermissionDenied if the image was created by another process. |
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@return KErrNoMemory if there is not enough system memory. |
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@see RSgImage::MapReadOnly() |
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*/ |
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virtual TInt MapReadOnly(const TAny*& aDataAddress, TInt& aDataStride) = 0; |
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/** |
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@publishedPartner |
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@prototype |
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@deprecated |
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Temporarily makes the pixel data of the image represented by this adapter object |
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accessible for writing by the CPU. |
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@param aDataAddress On return, the base address of the pixel data in the address |
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space of the calling process. |
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@param aDataStride On return, the number of bytes between rows of the pixel data. |
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@pre The image is not mapped yet. |
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@pre The image was created with CPU access ESgCpuAccessWriteOnly or |
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ESgCpuAccessReadWrite. |
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@pre The image was created by the calling process. |
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@post The pixel data of the image is directly accessible in the address space |
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of the calling process for writing only, until Unmap() is called. |
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@return KErrNone if successful. |
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@return KErrInUse if the image is already mapped or in exclusive use by the GPU. |
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@return KErrAccessDenied if the image was not created with CPU access |
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ESgCpuAccessWriteOnly or ESgCpuAccessReadWrite. |
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@return KErrPermissionDenied if the image was created by another process. |
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@return KErrNoMemory if there is not enough system memory. |
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@see RSgImage::MapWriteOnly() |
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*/ |
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virtual TInt MapWriteOnly(TAny*& aDataAddress, TInt& aDataStride) = 0; |
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/** |
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@publishedPartner |
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@prototype |
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@deprecated |
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|
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Temporarily makes the pixel data of the image represented by this adapter object |
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accessible for reading and writing by the CPU. |
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|
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@param aDataAddress On return, the base address of the pixel data in the address |
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space of the calling process. |
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@param aDataStride On return, the number of bytes between rows of the pixel data. |
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@pre The image is not mapped yet. |
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@pre The image was created with CPU access ESgCpuAccessReadWrite. |
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@pre The image was created by the calling process. |
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@post The pixel data of the image is directly accessible in the address space |
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of the calling process for reading and writing, until Unmap() is called. |
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@return KErrNone if successful. |
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@return KErrInUse if the image is already mapped or in exclusive use by the GPU. |
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@return KErrAccessDenied if the image was not created with CPU access |
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ESgCpuAccessReadWrite. |
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@return KErrPermissionDenied if the image was created by another process. |
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@return KErrNoMemory if there is not enough system memory. |
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@see RSgImage::MapReadWrite() |
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*/ |
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virtual TInt MapReadWrite(TAny*& aDataAddress, TInt& aDataStride) = 0; |
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/** |
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@publishedPartner |
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@prototype |
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@deprecated |
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|
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Makes the pixel data of the image represented by this adapter object no longer |
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accessible by the CPU. |
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|
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@pre The image is mapped for CPU access by a previous call to MapReadOnly(), |
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MapWriteOnly() or MapReadWrite(). |
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@post The GPU is guaranteed to be able to get access to the image. |
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@post The address range in the calling process used for the mapping is no longer |
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valid. |
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@return KErrNone if successful. |
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@return KErrGeneral if the image was not mapped for CPU access. |
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@see RSgImage::Unmap() |
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*/ |
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virtual TInt Unmap() = 0; |
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}; |
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|
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|
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#endif // SGIMAGEADAPTER_H |