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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
module com { module sun { module star { module rendering {
/** Specialized interface for bitmaps containing half floats as their
color components. Half floats are 16 bit wide, and some high-end
GPUs already have them as supported frame buffer format. In
contrast to XHalfFloatBitmap, this interface only
permits read-only access.<p>
Use this interface for e.g. bitmaps that are calculated
on-the-fly, or that are pure functional, and thus cannot be
modified.<p>
If you get passed an instance of
XHalfFloatReadOnlyBitmap that also supports the
XVolatileBitmap interface, things become a bit more
complicated. When reading data, one has to check for both
VolatileContentDestroyedException and mismatching
FloatingPointBitmapLayout return values. If either of them
occurs, the whole bitmap read operation should be repeated.<p>
*/
interface XHalfFloatReadOnlyBitmap : XBitmap
{
/** Query the raw data of this bitmap.<p>
Query the raw data of this bitmap, in the format as defined by
getMemoryLayout(). With the given rectangle, a subset of the
whole bitmap can be queried. When querying subsets of the
bitmap, the same scanline padding takes place as when the
whole bitmap is requested. Note: as we currently have no 16
bit float UNO data type, the values are transported as 16 bit
integers across the API (which requires casting on both
sides).<p>
@throws VolatileContentDestroyedException
if the bitmap is volatile, and the content has been destroyed by the system.
*/
sequence<short> getData( [in] ::com::sun::star::geometry::IntegerRectangle2D rect )
raises (com::sun::star::lang::IndexOutOfBoundsException,
VolatileContentDestroyedException);
/** Get a single pixel of the bitmap, returning its color
value.<p>
@throws VolatileContentDestroyedException
if the bitmap is volatile, and the content has been destroyed by the system.
*/
sequence<short> getPixel( [in] ::com::sun::star::geometry::IntegerPoint2D pos )
raises (com::sun::star::lang::IndexOutOfBoundsException,
VolatileContentDestroyedException);
/** Query the memory layout for this bitmap.<p>
*/
FloatingPointBitmapLayout getMemoryLayout();
};
}; }; }; };
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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