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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 .
*/
#ifndef __com_sun_star_rendering_XHalfFloatReadOnlyBitmap_idl__
#define __com_sun_star_rendering_XHalfFloatReadOnlyBitmap_idl__
#include <com/sun/star/lang/IllegalArgumentException.idl>
#include <com/sun/star/lang/IndexOutOfBoundsException.idl>
#include <com/sun/star/rendering/FloatingPointBitmapLayout.idl>
#include <com/sun/star/geometry/IntegerPoint2D.idl>
#include <com/sun/star/geometry/IntegerRectangle2D.idl>
#include <com/sun/star/rendering/XBitmap.idl>
#include <com/sun/star/rendering/VolatileContentDestroyedException.idl>
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 <type>XHalfFloatBitmap</type>, 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
<type>XHalfFloatReadOnlyBitmap</type> that also supports the
<type>XVolatileBitmap</type> interface, things become a bit more
complicated. When reading data, one has to check for both
<type>VolatileContentDestroyedException</type> and mismatching
<type>FloatingPointBitmapLayout</type> 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 <type>VolatileContentDestroyedException</type>
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 <type>VolatileContentDestroyedException</type>
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();
};
}; }; }; };
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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