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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
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*
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*
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
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* version 3 along with OpenOffice.org. If not, see
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************************************************************************/
#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
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