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root / src / portaudio_20161030_catalina_patch / src / common / pa_converters.c @ 164:9fa11135915a
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/*
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* $Id$
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* Portable Audio I/O Library sample conversion mechanism
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*
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* Based on the Open Source API proposed by Ross Bencina
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* Copyright (c) 1999-2002 Phil Burk, Ross Bencina
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files
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* (the "Software"), to deal in the Software without restriction,
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* including without limitation the rights to use, copy, modify, merge,
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* publish, distribute, sublicense, and/or sell copies of the Software,
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* and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
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* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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/*
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* The text above constitutes the entire PortAudio license; however,
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* the PortAudio community also makes the following non-binding requests:
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*
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* Any person wishing to distribute modifications to the Software is
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* requested to send the modifications to the original developer so that
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* they can be incorporated into the canonical version. It is also
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* requested that these non-binding requests be included along with the
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* license above.
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*/
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/** @file
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@ingroup common_src
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@brief Conversion function implementations.
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If the C9x function lrintf() is available, define PA_USE_C99_LRINTF to use it
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@todo Consider whether functions which dither but don't clip should exist,
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V18 automatically enabled clipping whenever dithering was selected. Perhaps
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we should do the same.
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see: "require clipping for dithering sample conversion functions?"
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http://www.portaudio.com/trac/ticket/112
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@todo implement the converters marked IMPLEMENT ME: Int32_To_Int24_Dither,
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Int32_To_UInt8_Dither, Int24_To_Int16_Dither, Int24_To_Int8_Dither,
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Int24_To_UInt8_Dither, Int16_To_Int8_Dither, Int16_To_UInt8_Dither
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see: "some conversion functions are not implemented in pa_converters.c"
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http://www.portaudio.com/trac/ticket/35
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@todo review the converters marked REVIEW: Float32_To_Int32,
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Float32_To_Int32_Dither, Float32_To_Int32_Clip, Float32_To_Int32_DitherClip,
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Int32_To_Int16_Dither, Int32_To_Int8_Dither, Int16_To_Int32
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*/
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#include "pa_converters.h" |
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#include "pa_dither.h" |
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#include "pa_endianness.h" |
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#include "pa_types.h" |
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PaSampleFormat PaUtil_SelectClosestAvailableFormat( |
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PaSampleFormat availableFormats, PaSampleFormat format ) |
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{
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PaSampleFormat result; |
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format &= ~paNonInterleaved; |
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availableFormats &= ~paNonInterleaved; |
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if( (format & availableFormats) == 0 ) |
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{
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/* NOTE: this code depends on the sample format constants being in
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descending order of quality - ie best quality is 0
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FIXME: should write an assert which checks that all of the
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known constants conform to that requirement.
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*/
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if( format != 0x01 ) |
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{
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/* scan for better formats */
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result = format; |
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do
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{
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result >>= 1;
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} |
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while( (result & availableFormats) == 0 && result != 0 ); |
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} |
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else
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{
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result = 0;
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} |
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if( result == 0 ){ |
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/* scan for worse formats */
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result = format; |
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do
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{
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result <<= 1;
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} |
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while( (result & availableFormats) == 0 && result != paCustomFormat ); |
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if( (result & availableFormats) == 0 ) |
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result = paSampleFormatNotSupported; |
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} |
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}else{
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result = format; |
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} |
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return result;
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} |
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/* -------------------------------------------------------------------------- */
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#define PA_SELECT_FORMAT_( format, float32, int32, int24, int16, int8, uint8 ) \
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switch( format & ~paNonInterleaved ){ \
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case paFloat32: \
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float32 \ |
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case paInt32: \
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int32 \ |
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case paInt24: \
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int24 \ |
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case paInt16: \
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int16 \ |
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case paInt8: \
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int8 \ |
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case paUInt8: \
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uint8 \ |
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default: return 0; \ |
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} |
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/* -------------------------------------------------------------------------- */
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#define PA_SELECT_CONVERTER_DITHER_CLIP_( flags, source, destination ) \
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if( flags & paClipOff ){ /* no clip */ \ |
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if( flags & paDitherOff ){ /* no dither */ \ |
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return paConverters. source ## _To_ ## destination; \ |
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}else{ /* dither */ \ |
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return paConverters. source ## _To_ ## destination ## _Dither; \ |
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} \ |
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}else{ /* clip */ \ |
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if( flags & paDitherOff ){ /* no dither */ \ |
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return paConverters. source ## _To_ ## destination ## _Clip; \ |
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}else{ /* dither */ \ |
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return paConverters. source ## _To_ ## destination ## _DitherClip; \ |
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} \ |
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} |
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/* -------------------------------------------------------------------------- */
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#define PA_SELECT_CONVERTER_DITHER_( flags, source, destination ) \
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if( flags & paDitherOff ){ /* no dither */ \ |
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return paConverters. source ## _To_ ## destination; \ |
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}else{ /* dither */ \ |
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return paConverters. source ## _To_ ## destination ## _Dither; \ |
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} |
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/* -------------------------------------------------------------------------- */
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#define PA_USE_CONVERTER_( source, destination )\
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return paConverters. source ## _To_ ## destination; |
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/* -------------------------------------------------------------------------- */
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#define PA_UNITY_CONVERSION_( wordlength )\
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return paConverters. Copy_ ## wordlength ## _To_ ## wordlength; |
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/* -------------------------------------------------------------------------- */
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PaUtilConverter* PaUtil_SelectConverter( PaSampleFormat sourceFormat, |
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PaSampleFormat destinationFormat, PaStreamFlags flags ) |
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{
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PA_SELECT_FORMAT_( sourceFormat, |
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/* paFloat32: */
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PA_SELECT_FORMAT_( destinationFormat, |
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/* paFloat32: */ PA_UNITY_CONVERSION_( 32 ), |
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/* paInt32: */ PA_SELECT_CONVERTER_DITHER_CLIP_( flags, Float32, Int32 ),
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/* paInt24: */ PA_SELECT_CONVERTER_DITHER_CLIP_( flags, Float32, Int24 ),
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/* paInt16: */ PA_SELECT_CONVERTER_DITHER_CLIP_( flags, Float32, Int16 ),
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/* paInt8: */ PA_SELECT_CONVERTER_DITHER_CLIP_( flags, Float32, Int8 ),
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/* paUInt8: */ PA_SELECT_CONVERTER_DITHER_CLIP_( flags, Float32, UInt8 )
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), |
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/* paInt32: */
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PA_SELECT_FORMAT_( destinationFormat, |
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/* paFloat32: */ PA_USE_CONVERTER_( Int32, Float32 ),
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/* paInt32: */ PA_UNITY_CONVERSION_( 32 ), |
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/* paInt24: */ PA_SELECT_CONVERTER_DITHER_( flags, Int32, Int24 ),
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/* paInt16: */ PA_SELECT_CONVERTER_DITHER_( flags, Int32, Int16 ),
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/* paInt8: */ PA_SELECT_CONVERTER_DITHER_( flags, Int32, Int8 ),
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/* paUInt8: */ PA_SELECT_CONVERTER_DITHER_( flags, Int32, UInt8 )
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), |
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/* paInt24: */
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PA_SELECT_FORMAT_( destinationFormat, |
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/* paFloat32: */ PA_USE_CONVERTER_( Int24, Float32 ),
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/* paInt32: */ PA_USE_CONVERTER_( Int24, Int32 ),
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/* paInt24: */ PA_UNITY_CONVERSION_( 24 ), |
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/* paInt16: */ PA_SELECT_CONVERTER_DITHER_( flags, Int24, Int16 ),
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/* paInt8: */ PA_SELECT_CONVERTER_DITHER_( flags, Int24, Int8 ),
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/* paUInt8: */ PA_SELECT_CONVERTER_DITHER_( flags, Int24, UInt8 )
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), |
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/* paInt16: */
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PA_SELECT_FORMAT_( destinationFormat, |
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/* paFloat32: */ PA_USE_CONVERTER_( Int16, Float32 ),
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/* paInt32: */ PA_USE_CONVERTER_( Int16, Int32 ),
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/* paInt24: */ PA_USE_CONVERTER_( Int16, Int24 ),
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/* paInt16: */ PA_UNITY_CONVERSION_( 16 ), |
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/* paInt8: */ PA_SELECT_CONVERTER_DITHER_( flags, Int16, Int8 ),
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/* paUInt8: */ PA_SELECT_CONVERTER_DITHER_( flags, Int16, UInt8 )
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), |
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/* paInt8: */
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PA_SELECT_FORMAT_( destinationFormat, |
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/* paFloat32: */ PA_USE_CONVERTER_( Int8, Float32 ),
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/* paInt32: */ PA_USE_CONVERTER_( Int8, Int32 ),
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/* paInt24: */ PA_USE_CONVERTER_( Int8, Int24 ),
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/* paInt16: */ PA_USE_CONVERTER_( Int8, Int16 ),
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/* paInt8: */ PA_UNITY_CONVERSION_( 8 ), |
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/* paUInt8: */ PA_USE_CONVERTER_( Int8, UInt8 )
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), |
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/* paUInt8: */
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PA_SELECT_FORMAT_( destinationFormat, |
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/* paFloat32: */ PA_USE_CONVERTER_( UInt8, Float32 ),
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/* paInt32: */ PA_USE_CONVERTER_( UInt8, Int32 ),
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/* paInt24: */ PA_USE_CONVERTER_( UInt8, Int24 ),
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/* paInt16: */ PA_USE_CONVERTER_( UInt8, Int16 ),
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/* paInt8: */ PA_USE_CONVERTER_( UInt8, Int8 ),
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/* paUInt8: */ PA_UNITY_CONVERSION_( 8 ) |
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) |
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) |
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} |
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/* -------------------------------------------------------------------------- */
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#ifdef PA_NO_STANDARD_CONVERTERS
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/* -------------------------------------------------------------------------- */
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PaUtilConverterTable paConverters = {
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0, /* PaUtilConverter *Float32_To_Int32; */ |
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0, /* PaUtilConverter *Float32_To_Int32_Dither; */ |
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0, /* PaUtilConverter *Float32_To_Int32_Clip; */ |
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0, /* PaUtilConverter *Float32_To_Int32_DitherClip; */ |
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|
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0, /* PaUtilConverter *Float32_To_Int24; */ |
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0, /* PaUtilConverter *Float32_To_Int24_Dither; */ |
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0, /* PaUtilConverter *Float32_To_Int24_Clip; */ |
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0, /* PaUtilConverter *Float32_To_Int24_DitherClip; */ |
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|
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0, /* PaUtilConverter *Float32_To_Int16; */ |
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0, /* PaUtilConverter *Float32_To_Int16_Dither; */ |
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0, /* PaUtilConverter *Float32_To_Int16_Clip; */ |
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0, /* PaUtilConverter *Float32_To_Int16_DitherClip; */ |
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|
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0, /* PaUtilConverter *Float32_To_Int8; */ |
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0, /* PaUtilConverter *Float32_To_Int8_Dither; */ |
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0, /* PaUtilConverter *Float32_To_Int8_Clip; */ |
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0, /* PaUtilConverter *Float32_To_Int8_DitherClip; */ |
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|
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0, /* PaUtilConverter *Float32_To_UInt8; */ |
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0, /* PaUtilConverter *Float32_To_UInt8_Dither; */ |
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0, /* PaUtilConverter *Float32_To_UInt8_Clip; */ |
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0, /* PaUtilConverter *Float32_To_UInt8_DitherClip; */ |
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|
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0, /* PaUtilConverter *Int32_To_Float32; */ |
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0, /* PaUtilConverter *Int32_To_Int24; */ |
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0, /* PaUtilConverter *Int32_To_Int24_Dither; */ |
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0, /* PaUtilConverter *Int32_To_Int16; */ |
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0, /* PaUtilConverter *Int32_To_Int16_Dither; */ |
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0, /* PaUtilConverter *Int32_To_Int8; */ |
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0, /* PaUtilConverter *Int32_To_Int8_Dither; */ |
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0, /* PaUtilConverter *Int32_To_UInt8; */ |
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0, /* PaUtilConverter *Int32_To_UInt8_Dither; */ |
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|
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0, /* PaUtilConverter *Int24_To_Float32; */ |
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0, /* PaUtilConverter *Int24_To_Int32; */ |
| 283 |
0, /* PaUtilConverter *Int24_To_Int16; */ |
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0, /* PaUtilConverter *Int24_To_Int16_Dither; */ |
| 285 |
0, /* PaUtilConverter *Int24_To_Int8; */ |
| 286 |
0, /* PaUtilConverter *Int24_To_Int8_Dither; */ |
| 287 |
0, /* PaUtilConverter *Int24_To_UInt8; */ |
| 288 |
0, /* PaUtilConverter *Int24_To_UInt8_Dither; */ |
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|
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0, /* PaUtilConverter *Int16_To_Float32; */ |
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0, /* PaUtilConverter *Int16_To_Int32; */ |
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0, /* PaUtilConverter *Int16_To_Int24; */ |
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0, /* PaUtilConverter *Int16_To_Int8; */ |
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0, /* PaUtilConverter *Int16_To_Int8_Dither; */ |
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0, /* PaUtilConverter *Int16_To_UInt8; */ |
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0, /* PaUtilConverter *Int16_To_UInt8_Dither; */ |
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|
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0, /* PaUtilConverter *Int8_To_Float32; */ |
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0, /* PaUtilConverter *Int8_To_Int32; */ |
| 300 |
0, /* PaUtilConverter *Int8_To_Int24 */ |
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0, /* PaUtilConverter *Int8_To_Int16; */ |
| 302 |
0, /* PaUtilConverter *Int8_To_UInt8; */ |
| 303 |
|
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0, /* PaUtilConverter *UInt8_To_Float32; */ |
| 305 |
0, /* PaUtilConverter *UInt8_To_Int32; */ |
| 306 |
0, /* PaUtilConverter *UInt8_To_Int24; */ |
| 307 |
0, /* PaUtilConverter *UInt8_To_Int16; */ |
| 308 |
0, /* PaUtilConverter *UInt8_To_Int8; */ |
| 309 |
|
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0, /* PaUtilConverter *Copy_8_To_8; */ |
| 311 |
0, /* PaUtilConverter *Copy_16_To_16; */ |
| 312 |
0, /* PaUtilConverter *Copy_24_To_24; */ |
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0 /* PaUtilConverter *Copy_32_To_32; */ |
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}; |
| 315 |
|
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/* -------------------------------------------------------------------------- */
|
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|
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#else /* PA_NO_STANDARD_CONVERTERS is not defined */ |
| 319 |
|
| 320 |
/* -------------------------------------------------------------------------- */
|
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|
| 322 |
#define PA_CLIP_( val, min, max )\
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{ val = ((val) < (min)) ? (min) : (((val) > (max)) ? (max) : (val)); }
|
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|
| 325 |
|
| 326 |
static const float const_1_div_128_ = 1.0f / 128.0f; /* 8 bit multiplier */ |
| 327 |
|
| 328 |
static const float const_1_div_32768_ = 1.0f / 32768.f; /* 16 bit multiplier */ |
| 329 |
|
| 330 |
static const double const_1_div_2147483648_ = 1.0 / 2147483648.0; /* 32 bit multiplier */ |
| 331 |
|
| 332 |
/* -------------------------------------------------------------------------- */
|
| 333 |
|
| 334 |
static void Float32_To_Int32( |
| 335 |
void *destinationBuffer, signed int destinationStride, |
| 336 |
void *sourceBuffer, signed int sourceStride, |
| 337 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 338 |
{
|
| 339 |
float *src = (float*)sourceBuffer; |
| 340 |
PaInt32 *dest = (PaInt32*)destinationBuffer; |
| 341 |
(void)ditherGenerator; /* unused parameter */ |
| 342 |
|
| 343 |
while( count-- )
|
| 344 |
{
|
| 345 |
/* REVIEW */
|
| 346 |
#ifdef PA_USE_C99_LRINTF
|
| 347 |
float scaled = *src * 0x7FFFFFFF; |
| 348 |
*dest = lrintf(scaled-0.5f); |
| 349 |
#else
|
| 350 |
double scaled = *src * 0x7FFFFFFF; |
| 351 |
*dest = (PaInt32) scaled; |
| 352 |
#endif
|
| 353 |
|
| 354 |
src += sourceStride; |
| 355 |
dest += destinationStride; |
| 356 |
} |
| 357 |
} |
| 358 |
|
| 359 |
/* -------------------------------------------------------------------------- */
|
| 360 |
|
| 361 |
static void Float32_To_Int32_Dither( |
| 362 |
void *destinationBuffer, signed int destinationStride, |
| 363 |
void *sourceBuffer, signed int sourceStride, |
| 364 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 365 |
{
|
| 366 |
float *src = (float*)sourceBuffer; |
| 367 |
PaInt32 *dest = (PaInt32*)destinationBuffer; |
| 368 |
|
| 369 |
while( count-- )
|
| 370 |
{
|
| 371 |
/* REVIEW */
|
| 372 |
#ifdef PA_USE_C99_LRINTF
|
| 373 |
float dither = PaUtil_GenerateFloatTriangularDither( ditherGenerator );
|
| 374 |
/* use smaller scaler to prevent overflow when we add the dither */
|
| 375 |
float dithered = ((float)*src * (2147483646.0f)) + dither; |
| 376 |
*dest = lrintf(dithered - 0.5f); |
| 377 |
#else
|
| 378 |
double dither = PaUtil_GenerateFloatTriangularDither( ditherGenerator );
|
| 379 |
/* use smaller scaler to prevent overflow when we add the dither */
|
| 380 |
double dithered = ((double)*src * (2147483646.0)) + dither; |
| 381 |
*dest = (PaInt32) dithered; |
| 382 |
#endif
|
| 383 |
src += sourceStride; |
| 384 |
dest += destinationStride; |
| 385 |
} |
| 386 |
} |
| 387 |
|
| 388 |
/* -------------------------------------------------------------------------- */
|
| 389 |
|
| 390 |
static void Float32_To_Int32_Clip( |
| 391 |
void *destinationBuffer, signed int destinationStride, |
| 392 |
void *sourceBuffer, signed int sourceStride, |
| 393 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 394 |
{
|
| 395 |
float *src = (float*)sourceBuffer; |
| 396 |
PaInt32 *dest = (PaInt32*)destinationBuffer; |
| 397 |
(void) ditherGenerator; /* unused parameter */ |
| 398 |
|
| 399 |
while( count-- )
|
| 400 |
{
|
| 401 |
/* REVIEW */
|
| 402 |
#ifdef PA_USE_C99_LRINTF
|
| 403 |
float scaled = *src * 0x7FFFFFFF; |
| 404 |
PA_CLIP_( scaled, -2147483648.f, 2147483647.f ); |
| 405 |
*dest = lrintf(scaled-0.5f); |
| 406 |
#else
|
| 407 |
double scaled = *src * 0x7FFFFFFF; |
| 408 |
PA_CLIP_( scaled, -2147483648., 2147483647. ); |
| 409 |
*dest = (PaInt32) scaled; |
| 410 |
#endif
|
| 411 |
|
| 412 |
src += sourceStride; |
| 413 |
dest += destinationStride; |
| 414 |
} |
| 415 |
} |
| 416 |
|
| 417 |
/* -------------------------------------------------------------------------- */
|
| 418 |
|
| 419 |
static void Float32_To_Int32_DitherClip( |
| 420 |
void *destinationBuffer, signed int destinationStride, |
| 421 |
void *sourceBuffer, signed int sourceStride, |
| 422 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 423 |
{
|
| 424 |
float *src = (float*)sourceBuffer; |
| 425 |
PaInt32 *dest = (PaInt32*)destinationBuffer; |
| 426 |
|
| 427 |
while( count-- )
|
| 428 |
{
|
| 429 |
/* REVIEW */
|
| 430 |
#ifdef PA_USE_C99_LRINTF
|
| 431 |
float dither = PaUtil_GenerateFloatTriangularDither( ditherGenerator );
|
| 432 |
/* use smaller scaler to prevent overflow when we add the dither */
|
| 433 |
float dithered = ((float)*src * (2147483646.0f)) + dither; |
| 434 |
PA_CLIP_( dithered, -2147483648.f, 2147483647.f ); |
| 435 |
*dest = lrintf(dithered-0.5f); |
| 436 |
#else
|
| 437 |
double dither = PaUtil_GenerateFloatTriangularDither( ditherGenerator );
|
| 438 |
/* use smaller scaler to prevent overflow when we add the dither */
|
| 439 |
double dithered = ((double)*src * (2147483646.0)) + dither; |
| 440 |
PA_CLIP_( dithered, -2147483648., 2147483647. ); |
| 441 |
*dest = (PaInt32) dithered; |
| 442 |
#endif
|
| 443 |
|
| 444 |
src += sourceStride; |
| 445 |
dest += destinationStride; |
| 446 |
} |
| 447 |
} |
| 448 |
|
| 449 |
/* -------------------------------------------------------------------------- */
|
| 450 |
|
| 451 |
static void Float32_To_Int24( |
| 452 |
void *destinationBuffer, signed int destinationStride, |
| 453 |
void *sourceBuffer, signed int sourceStride, |
| 454 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 455 |
{
|
| 456 |
float *src = (float*)sourceBuffer; |
| 457 |
unsigned char *dest = (unsigned char*)destinationBuffer; |
| 458 |
PaInt32 temp; |
| 459 |
|
| 460 |
(void) ditherGenerator; /* unused parameter */ |
| 461 |
|
| 462 |
while( count-- )
|
| 463 |
{
|
| 464 |
/* convert to 32 bit and drop the low 8 bits */
|
| 465 |
double scaled = (double)(*src) * 2147483647.0; |
| 466 |
temp = (PaInt32) scaled; |
| 467 |
|
| 468 |
#if defined(PA_LITTLE_ENDIAN)
|
| 469 |
dest[0] = (unsigned char)(temp >> 8); |
| 470 |
dest[1] = (unsigned char)(temp >> 16); |
| 471 |
dest[2] = (unsigned char)(temp >> 24); |
| 472 |
#elif defined(PA_BIG_ENDIAN)
|
| 473 |
dest[0] = (unsigned char)(temp >> 24); |
| 474 |
dest[1] = (unsigned char)(temp >> 16); |
| 475 |
dest[2] = (unsigned char)(temp >> 8); |
| 476 |
#endif
|
| 477 |
|
| 478 |
src += sourceStride; |
| 479 |
dest += destinationStride * 3;
|
| 480 |
} |
| 481 |
} |
| 482 |
|
| 483 |
/* -------------------------------------------------------------------------- */
|
| 484 |
|
| 485 |
static void Float32_To_Int24_Dither( |
| 486 |
void *destinationBuffer, signed int destinationStride, |
| 487 |
void *sourceBuffer, signed int sourceStride, |
| 488 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 489 |
{
|
| 490 |
float *src = (float*)sourceBuffer; |
| 491 |
unsigned char *dest = (unsigned char*)destinationBuffer; |
| 492 |
PaInt32 temp; |
| 493 |
|
| 494 |
while( count-- )
|
| 495 |
{
|
| 496 |
/* convert to 32 bit and drop the low 8 bits */
|
| 497 |
|
| 498 |
double dither = PaUtil_GenerateFloatTriangularDither( ditherGenerator );
|
| 499 |
/* use smaller scaler to prevent overflow when we add the dither */
|
| 500 |
double dithered = ((double)*src * (2147483646.0)) + dither; |
| 501 |
|
| 502 |
temp = (PaInt32) dithered; |
| 503 |
|
| 504 |
#if defined(PA_LITTLE_ENDIAN)
|
| 505 |
dest[0] = (unsigned char)(temp >> 8); |
| 506 |
dest[1] = (unsigned char)(temp >> 16); |
| 507 |
dest[2] = (unsigned char)(temp >> 24); |
| 508 |
#elif defined(PA_BIG_ENDIAN)
|
| 509 |
dest[0] = (unsigned char)(temp >> 24); |
| 510 |
dest[1] = (unsigned char)(temp >> 16); |
| 511 |
dest[2] = (unsigned char)(temp >> 8); |
| 512 |
#endif
|
| 513 |
|
| 514 |
src += sourceStride; |
| 515 |
dest += destinationStride * 3;
|
| 516 |
} |
| 517 |
} |
| 518 |
|
| 519 |
/* -------------------------------------------------------------------------- */
|
| 520 |
|
| 521 |
static void Float32_To_Int24_Clip( |
| 522 |
void *destinationBuffer, signed int destinationStride, |
| 523 |
void *sourceBuffer, signed int sourceStride, |
| 524 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 525 |
{
|
| 526 |
float *src = (float*)sourceBuffer; |
| 527 |
unsigned char *dest = (unsigned char*)destinationBuffer; |
| 528 |
PaInt32 temp; |
| 529 |
|
| 530 |
(void) ditherGenerator; /* unused parameter */ |
| 531 |
|
| 532 |
while( count-- )
|
| 533 |
{
|
| 534 |
/* convert to 32 bit and drop the low 8 bits */
|
| 535 |
double scaled = *src * 0x7FFFFFFF; |
| 536 |
PA_CLIP_( scaled, -2147483648., 2147483647. ); |
| 537 |
temp = (PaInt32) scaled; |
| 538 |
|
| 539 |
#if defined(PA_LITTLE_ENDIAN)
|
| 540 |
dest[0] = (unsigned char)(temp >> 8); |
| 541 |
dest[1] = (unsigned char)(temp >> 16); |
| 542 |
dest[2] = (unsigned char)(temp >> 24); |
| 543 |
#elif defined(PA_BIG_ENDIAN)
|
| 544 |
dest[0] = (unsigned char)(temp >> 24); |
| 545 |
dest[1] = (unsigned char)(temp >> 16); |
| 546 |
dest[2] = (unsigned char)(temp >> 8); |
| 547 |
#endif
|
| 548 |
|
| 549 |
src += sourceStride; |
| 550 |
dest += destinationStride * 3;
|
| 551 |
} |
| 552 |
} |
| 553 |
|
| 554 |
/* -------------------------------------------------------------------------- */
|
| 555 |
|
| 556 |
static void Float32_To_Int24_DitherClip( |
| 557 |
void *destinationBuffer, signed int destinationStride, |
| 558 |
void *sourceBuffer, signed int sourceStride, |
| 559 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 560 |
{
|
| 561 |
float *src = (float*)sourceBuffer; |
| 562 |
unsigned char *dest = (unsigned char*)destinationBuffer; |
| 563 |
PaInt32 temp; |
| 564 |
|
| 565 |
while( count-- )
|
| 566 |
{
|
| 567 |
/* convert to 32 bit and drop the low 8 bits */
|
| 568 |
|
| 569 |
double dither = PaUtil_GenerateFloatTriangularDither( ditherGenerator );
|
| 570 |
/* use smaller scaler to prevent overflow when we add the dither */
|
| 571 |
double dithered = ((double)*src * (2147483646.0)) + dither; |
| 572 |
PA_CLIP_( dithered, -2147483648., 2147483647. ); |
| 573 |
|
| 574 |
temp = (PaInt32) dithered; |
| 575 |
|
| 576 |
#if defined(PA_LITTLE_ENDIAN)
|
| 577 |
dest[0] = (unsigned char)(temp >> 8); |
| 578 |
dest[1] = (unsigned char)(temp >> 16); |
| 579 |
dest[2] = (unsigned char)(temp >> 24); |
| 580 |
#elif defined(PA_BIG_ENDIAN)
|
| 581 |
dest[0] = (unsigned char)(temp >> 24); |
| 582 |
dest[1] = (unsigned char)(temp >> 16); |
| 583 |
dest[2] = (unsigned char)(temp >> 8); |
| 584 |
#endif
|
| 585 |
|
| 586 |
src += sourceStride; |
| 587 |
dest += destinationStride * 3;
|
| 588 |
} |
| 589 |
} |
| 590 |
|
| 591 |
/* -------------------------------------------------------------------------- */
|
| 592 |
|
| 593 |
static void Float32_To_Int16( |
| 594 |
void *destinationBuffer, signed int destinationStride, |
| 595 |
void *sourceBuffer, signed int sourceStride, |
| 596 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 597 |
{
|
| 598 |
float *src = (float*)sourceBuffer; |
| 599 |
PaInt16 *dest = (PaInt16*)destinationBuffer; |
| 600 |
(void)ditherGenerator; /* unused parameter */ |
| 601 |
|
| 602 |
while( count-- )
|
| 603 |
{
|
| 604 |
#ifdef PA_USE_C99_LRINTF
|
| 605 |
float tempf = (*src * (32767.0f)) ; |
| 606 |
*dest = lrintf(tempf-0.5f); |
| 607 |
#else
|
| 608 |
short samp = (short) (*src * (32767.0f)); |
| 609 |
*dest = samp; |
| 610 |
#endif
|
| 611 |
|
| 612 |
src += sourceStride; |
| 613 |
dest += destinationStride; |
| 614 |
} |
| 615 |
} |
| 616 |
|
| 617 |
/* -------------------------------------------------------------------------- */
|
| 618 |
|
| 619 |
static void Float32_To_Int16_Dither( |
| 620 |
void *destinationBuffer, signed int destinationStride, |
| 621 |
void *sourceBuffer, signed int sourceStride, |
| 622 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 623 |
{
|
| 624 |
float *src = (float*)sourceBuffer; |
| 625 |
PaInt16 *dest = (PaInt16*)destinationBuffer; |
| 626 |
|
| 627 |
while( count-- )
|
| 628 |
{
|
| 629 |
|
| 630 |
float dither = PaUtil_GenerateFloatTriangularDither( ditherGenerator );
|
| 631 |
/* use smaller scaler to prevent overflow when we add the dither */
|
| 632 |
float dithered = (*src * (32766.0f)) + dither; |
| 633 |
|
| 634 |
#ifdef PA_USE_C99_LRINTF
|
| 635 |
*dest = lrintf(dithered-0.5f); |
| 636 |
#else
|
| 637 |
*dest = (PaInt16) dithered; |
| 638 |
#endif
|
| 639 |
|
| 640 |
src += sourceStride; |
| 641 |
dest += destinationStride; |
| 642 |
} |
| 643 |
} |
| 644 |
|
| 645 |
/* -------------------------------------------------------------------------- */
|
| 646 |
|
| 647 |
static void Float32_To_Int16_Clip( |
| 648 |
void *destinationBuffer, signed int destinationStride, |
| 649 |
void *sourceBuffer, signed int sourceStride, |
| 650 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 651 |
{
|
| 652 |
float *src = (float*)sourceBuffer; |
| 653 |
PaInt16 *dest = (PaInt16*)destinationBuffer; |
| 654 |
(void)ditherGenerator; /* unused parameter */ |
| 655 |
|
| 656 |
while( count-- )
|
| 657 |
{
|
| 658 |
#ifdef PA_USE_C99_LRINTF
|
| 659 |
long samp = lrintf((*src * (32767.0f)) -0.5f); |
| 660 |
#else
|
| 661 |
long samp = (PaInt32) (*src * (32767.0f)); |
| 662 |
#endif
|
| 663 |
PA_CLIP_( samp, -0x8000, 0x7FFF ); |
| 664 |
*dest = (PaInt16) samp; |
| 665 |
|
| 666 |
src += sourceStride; |
| 667 |
dest += destinationStride; |
| 668 |
} |
| 669 |
} |
| 670 |
|
| 671 |
/* -------------------------------------------------------------------------- */
|
| 672 |
|
| 673 |
static void Float32_To_Int16_DitherClip( |
| 674 |
void *destinationBuffer, signed int destinationStride, |
| 675 |
void *sourceBuffer, signed int sourceStride, |
| 676 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 677 |
{
|
| 678 |
float *src = (float*)sourceBuffer; |
| 679 |
PaInt16 *dest = (PaInt16*)destinationBuffer; |
| 680 |
(void)ditherGenerator; /* unused parameter */ |
| 681 |
|
| 682 |
while( count-- )
|
| 683 |
{
|
| 684 |
|
| 685 |
float dither = PaUtil_GenerateFloatTriangularDither( ditherGenerator );
|
| 686 |
/* use smaller scaler to prevent overflow when we add the dither */
|
| 687 |
float dithered = (*src * (32766.0f)) + dither; |
| 688 |
PaInt32 samp = (PaInt32) dithered; |
| 689 |
PA_CLIP_( samp, -0x8000, 0x7FFF ); |
| 690 |
#ifdef PA_USE_C99_LRINTF
|
| 691 |
*dest = lrintf(samp-0.5f); |
| 692 |
#else
|
| 693 |
*dest = (PaInt16) samp; |
| 694 |
#endif
|
| 695 |
|
| 696 |
src += sourceStride; |
| 697 |
dest += destinationStride; |
| 698 |
} |
| 699 |
} |
| 700 |
|
| 701 |
/* -------------------------------------------------------------------------- */
|
| 702 |
|
| 703 |
static void Float32_To_Int8( |
| 704 |
void *destinationBuffer, signed int destinationStride, |
| 705 |
void *sourceBuffer, signed int sourceStride, |
| 706 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 707 |
{
|
| 708 |
float *src = (float*)sourceBuffer; |
| 709 |
signed char *dest = (signed char*)destinationBuffer; |
| 710 |
(void)ditherGenerator; /* unused parameter */ |
| 711 |
|
| 712 |
while( count-- )
|
| 713 |
{
|
| 714 |
signed char samp = (signed char) (*src * (127.0f)); |
| 715 |
*dest = samp; |
| 716 |
|
| 717 |
src += sourceStride; |
| 718 |
dest += destinationStride; |
| 719 |
} |
| 720 |
} |
| 721 |
|
| 722 |
/* -------------------------------------------------------------------------- */
|
| 723 |
|
| 724 |
static void Float32_To_Int8_Dither( |
| 725 |
void *destinationBuffer, signed int destinationStride, |
| 726 |
void *sourceBuffer, signed int sourceStride, |
| 727 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 728 |
{
|
| 729 |
float *src = (float*)sourceBuffer; |
| 730 |
signed char *dest = (signed char*)destinationBuffer; |
| 731 |
|
| 732 |
while( count-- )
|
| 733 |
{
|
| 734 |
float dither = PaUtil_GenerateFloatTriangularDither( ditherGenerator );
|
| 735 |
/* use smaller scaler to prevent overflow when we add the dither */
|
| 736 |
float dithered = (*src * (126.0f)) + dither; |
| 737 |
PaInt32 samp = (PaInt32) dithered; |
| 738 |
*dest = (signed char) samp; |
| 739 |
|
| 740 |
src += sourceStride; |
| 741 |
dest += destinationStride; |
| 742 |
} |
| 743 |
} |
| 744 |
|
| 745 |
/* -------------------------------------------------------------------------- */
|
| 746 |
|
| 747 |
static void Float32_To_Int8_Clip( |
| 748 |
void *destinationBuffer, signed int destinationStride, |
| 749 |
void *sourceBuffer, signed int sourceStride, |
| 750 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 751 |
{
|
| 752 |
float *src = (float*)sourceBuffer; |
| 753 |
signed char *dest = (signed char*)destinationBuffer; |
| 754 |
(void)ditherGenerator; /* unused parameter */ |
| 755 |
|
| 756 |
while( count-- )
|
| 757 |
{
|
| 758 |
PaInt32 samp = (PaInt32)(*src * (127.0f)); |
| 759 |
PA_CLIP_( samp, -0x80, 0x7F ); |
| 760 |
*dest = (signed char) samp; |
| 761 |
|
| 762 |
src += sourceStride; |
| 763 |
dest += destinationStride; |
| 764 |
} |
| 765 |
} |
| 766 |
|
| 767 |
/* -------------------------------------------------------------------------- */
|
| 768 |
|
| 769 |
static void Float32_To_Int8_DitherClip( |
| 770 |
void *destinationBuffer, signed int destinationStride, |
| 771 |
void *sourceBuffer, signed int sourceStride, |
| 772 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 773 |
{
|
| 774 |
float *src = (float*)sourceBuffer; |
| 775 |
signed char *dest = (signed char*)destinationBuffer; |
| 776 |
(void)ditherGenerator; /* unused parameter */ |
| 777 |
|
| 778 |
while( count-- )
|
| 779 |
{
|
| 780 |
float dither = PaUtil_GenerateFloatTriangularDither( ditherGenerator );
|
| 781 |
/* use smaller scaler to prevent overflow when we add the dither */
|
| 782 |
float dithered = (*src * (126.0f)) + dither; |
| 783 |
PaInt32 samp = (PaInt32) dithered; |
| 784 |
PA_CLIP_( samp, -0x80, 0x7F ); |
| 785 |
*dest = (signed char) samp; |
| 786 |
|
| 787 |
src += sourceStride; |
| 788 |
dest += destinationStride; |
| 789 |
} |
| 790 |
} |
| 791 |
|
| 792 |
/* -------------------------------------------------------------------------- */
|
| 793 |
|
| 794 |
static void Float32_To_UInt8( |
| 795 |
void *destinationBuffer, signed int destinationStride, |
| 796 |
void *sourceBuffer, signed int sourceStride, |
| 797 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 798 |
{
|
| 799 |
float *src = (float*)sourceBuffer; |
| 800 |
unsigned char *dest = (unsigned char*)destinationBuffer; |
| 801 |
(void)ditherGenerator; /* unused parameter */ |
| 802 |
|
| 803 |
while( count-- )
|
| 804 |
{
|
| 805 |
unsigned char samp = (unsigned char)(128 + ((unsigned char) (*src * (127.0f)))); |
| 806 |
*dest = samp; |
| 807 |
|
| 808 |
src += sourceStride; |
| 809 |
dest += destinationStride; |
| 810 |
} |
| 811 |
} |
| 812 |
|
| 813 |
/* -------------------------------------------------------------------------- */
|
| 814 |
|
| 815 |
static void Float32_To_UInt8_Dither( |
| 816 |
void *destinationBuffer, signed int destinationStride, |
| 817 |
void *sourceBuffer, signed int sourceStride, |
| 818 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 819 |
{
|
| 820 |
float *src = (float*)sourceBuffer; |
| 821 |
unsigned char *dest = (unsigned char*)destinationBuffer; |
| 822 |
|
| 823 |
while( count-- )
|
| 824 |
{
|
| 825 |
float dither = PaUtil_GenerateFloatTriangularDither( ditherGenerator );
|
| 826 |
/* use smaller scaler to prevent overflow when we add the dither */
|
| 827 |
float dithered = (*src * (126.0f)) + dither; |
| 828 |
PaInt32 samp = (PaInt32) dithered; |
| 829 |
*dest = (unsigned char) (128 + samp); |
| 830 |
|
| 831 |
src += sourceStride; |
| 832 |
dest += destinationStride; |
| 833 |
} |
| 834 |
} |
| 835 |
|
| 836 |
/* -------------------------------------------------------------------------- */
|
| 837 |
|
| 838 |
static void Float32_To_UInt8_Clip( |
| 839 |
void *destinationBuffer, signed int destinationStride, |
| 840 |
void *sourceBuffer, signed int sourceStride, |
| 841 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 842 |
{
|
| 843 |
float *src = (float*)sourceBuffer; |
| 844 |
unsigned char *dest = (unsigned char*)destinationBuffer; |
| 845 |
(void)ditherGenerator; /* unused parameter */ |
| 846 |
|
| 847 |
while( count-- )
|
| 848 |
{
|
| 849 |
PaInt32 samp = 128 + (PaInt32)(*src * (127.0f)); |
| 850 |
PA_CLIP_( samp, 0x0000, 0x00FF ); |
| 851 |
*dest = (unsigned char) samp; |
| 852 |
|
| 853 |
src += sourceStride; |
| 854 |
dest += destinationStride; |
| 855 |
} |
| 856 |
} |
| 857 |
|
| 858 |
/* -------------------------------------------------------------------------- */
|
| 859 |
|
| 860 |
static void Float32_To_UInt8_DitherClip( |
| 861 |
void *destinationBuffer, signed int destinationStride, |
| 862 |
void *sourceBuffer, signed int sourceStride, |
| 863 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 864 |
{
|
| 865 |
float *src = (float*)sourceBuffer; |
| 866 |
unsigned char *dest = (unsigned char*)destinationBuffer; |
| 867 |
(void)ditherGenerator; /* unused parameter */ |
| 868 |
|
| 869 |
while( count-- )
|
| 870 |
{
|
| 871 |
float dither = PaUtil_GenerateFloatTriangularDither( ditherGenerator );
|
| 872 |
/* use smaller scaler to prevent overflow when we add the dither */
|
| 873 |
float dithered = (*src * (126.0f)) + dither; |
| 874 |
PaInt32 samp = 128 + (PaInt32) dithered;
|
| 875 |
PA_CLIP_( samp, 0x0000, 0x00FF ); |
| 876 |
*dest = (unsigned char) samp; |
| 877 |
|
| 878 |
src += sourceStride; |
| 879 |
dest += destinationStride; |
| 880 |
} |
| 881 |
} |
| 882 |
|
| 883 |
/* -------------------------------------------------------------------------- */
|
| 884 |
|
| 885 |
static void Int32_To_Float32( |
| 886 |
void *destinationBuffer, signed int destinationStride, |
| 887 |
void *sourceBuffer, signed int sourceStride, |
| 888 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 889 |
{
|
| 890 |
PaInt32 *src = (PaInt32*)sourceBuffer; |
| 891 |
float *dest = (float*)destinationBuffer; |
| 892 |
(void)ditherGenerator; /* unused parameter */ |
| 893 |
|
| 894 |
while( count-- )
|
| 895 |
{
|
| 896 |
*dest = (float) ((double)*src * const_1_div_2147483648_); |
| 897 |
|
| 898 |
src += sourceStride; |
| 899 |
dest += destinationStride; |
| 900 |
} |
| 901 |
} |
| 902 |
|
| 903 |
/* -------------------------------------------------------------------------- */
|
| 904 |
|
| 905 |
static void Int32_To_Int24( |
| 906 |
void *destinationBuffer, signed int destinationStride, |
| 907 |
void *sourceBuffer, signed int sourceStride, |
| 908 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 909 |
{
|
| 910 |
PaInt32 *src = (PaInt32*)sourceBuffer; |
| 911 |
unsigned char *dest = (unsigned char*)destinationBuffer; |
| 912 |
(void) ditherGenerator; /* unused parameter */ |
| 913 |
|
| 914 |
while( count-- )
|
| 915 |
{
|
| 916 |
/* REVIEW */
|
| 917 |
#if defined(PA_LITTLE_ENDIAN)
|
| 918 |
dest[0] = (unsigned char)(*src >> 8); |
| 919 |
dest[1] = (unsigned char)(*src >> 16); |
| 920 |
dest[2] = (unsigned char)(*src >> 24); |
| 921 |
#elif defined(PA_BIG_ENDIAN)
|
| 922 |
dest[0] = (unsigned char)(*src >> 24); |
| 923 |
dest[1] = (unsigned char)(*src >> 16); |
| 924 |
dest[2] = (unsigned char)(*src >> 8); |
| 925 |
#endif
|
| 926 |
src += sourceStride; |
| 927 |
dest += destinationStride * 3;
|
| 928 |
} |
| 929 |
} |
| 930 |
|
| 931 |
/* -------------------------------------------------------------------------- */
|
| 932 |
|
| 933 |
static void Int32_To_Int24_Dither( |
| 934 |
void *destinationBuffer, signed int destinationStride, |
| 935 |
void *sourceBuffer, signed int sourceStride, |
| 936 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 937 |
{
|
| 938 |
(void) destinationBuffer; /* unused parameters */ |
| 939 |
(void) destinationStride; /* unused parameters */ |
| 940 |
(void) sourceBuffer; /* unused parameters */ |
| 941 |
(void) sourceStride; /* unused parameters */ |
| 942 |
(void) count; /* unused parameters */ |
| 943 |
(void) ditherGenerator; /* unused parameters */ |
| 944 |
/* IMPLEMENT ME */
|
| 945 |
} |
| 946 |
|
| 947 |
/* -------------------------------------------------------------------------- */
|
| 948 |
|
| 949 |
static void Int32_To_Int16( |
| 950 |
void *destinationBuffer, signed int destinationStride, |
| 951 |
void *sourceBuffer, signed int sourceStride, |
| 952 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 953 |
{
|
| 954 |
PaInt32 *src = (PaInt32*)sourceBuffer; |
| 955 |
PaInt16 *dest = (PaInt16*)destinationBuffer; |
| 956 |
(void)ditherGenerator; /* unused parameter */ |
| 957 |
|
| 958 |
while( count-- )
|
| 959 |
{
|
| 960 |
*dest = (PaInt16) ((*src) >> 16);
|
| 961 |
|
| 962 |
src += sourceStride; |
| 963 |
dest += destinationStride; |
| 964 |
} |
| 965 |
} |
| 966 |
|
| 967 |
/* -------------------------------------------------------------------------- */
|
| 968 |
|
| 969 |
static void Int32_To_Int16_Dither( |
| 970 |
void *destinationBuffer, signed int destinationStride, |
| 971 |
void *sourceBuffer, signed int sourceStride, |
| 972 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 973 |
{
|
| 974 |
PaInt32 *src = (PaInt32*)sourceBuffer; |
| 975 |
PaInt16 *dest = (PaInt16*)destinationBuffer; |
| 976 |
PaInt32 dither; |
| 977 |
|
| 978 |
while( count-- )
|
| 979 |
{
|
| 980 |
/* REVIEW */
|
| 981 |
dither = PaUtil_Generate16BitTriangularDither( ditherGenerator ); |
| 982 |
*dest = (PaInt16) ((((*src)>>1) + dither) >> 15); |
| 983 |
|
| 984 |
src += sourceStride; |
| 985 |
dest += destinationStride; |
| 986 |
} |
| 987 |
} |
| 988 |
|
| 989 |
/* -------------------------------------------------------------------------- */
|
| 990 |
|
| 991 |
static void Int32_To_Int8( |
| 992 |
void *destinationBuffer, signed int destinationStride, |
| 993 |
void *sourceBuffer, signed int sourceStride, |
| 994 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 995 |
{
|
| 996 |
PaInt32 *src = (PaInt32*)sourceBuffer; |
| 997 |
signed char *dest = (signed char*)destinationBuffer; |
| 998 |
(void)ditherGenerator; /* unused parameter */ |
| 999 |
|
| 1000 |
while( count-- )
|
| 1001 |
{
|
| 1002 |
*dest = (signed char) ((*src) >> 24); |
| 1003 |
|
| 1004 |
src += sourceStride; |
| 1005 |
dest += destinationStride; |
| 1006 |
} |
| 1007 |
} |
| 1008 |
|
| 1009 |
/* -------------------------------------------------------------------------- */
|
| 1010 |
|
| 1011 |
static void Int32_To_Int8_Dither( |
| 1012 |
void *destinationBuffer, signed int destinationStride, |
| 1013 |
void *sourceBuffer, signed int sourceStride, |
| 1014 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 1015 |
{
|
| 1016 |
PaInt32 *src = (PaInt32*)sourceBuffer; |
| 1017 |
signed char *dest = (signed char*)destinationBuffer; |
| 1018 |
PaInt32 dither; |
| 1019 |
|
| 1020 |
while( count-- )
|
| 1021 |
{
|
| 1022 |
/* REVIEW */
|
| 1023 |
dither = PaUtil_Generate16BitTriangularDither( ditherGenerator ); |
| 1024 |
*dest = (signed char) ((((*src)>>1) + dither) >> 23); |
| 1025 |
|
| 1026 |
src += sourceStride; |
| 1027 |
dest += destinationStride; |
| 1028 |
} |
| 1029 |
} |
| 1030 |
|
| 1031 |
/* -------------------------------------------------------------------------- */
|
| 1032 |
|
| 1033 |
static void Int32_To_UInt8( |
| 1034 |
void *destinationBuffer, signed int destinationStride, |
| 1035 |
void *sourceBuffer, signed int sourceStride, |
| 1036 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 1037 |
{
|
| 1038 |
PaInt32 *src = (PaInt32*)sourceBuffer; |
| 1039 |
unsigned char *dest = (unsigned char*)destinationBuffer; |
| 1040 |
(void)ditherGenerator; /* unused parameter */ |
| 1041 |
|
| 1042 |
while( count-- )
|
| 1043 |
{
|
| 1044 |
(*dest) = (unsigned char)(((*src) >> 24) + 128); |
| 1045 |
|
| 1046 |
src += sourceStride; |
| 1047 |
dest += destinationStride; |
| 1048 |
} |
| 1049 |
} |
| 1050 |
|
| 1051 |
/* -------------------------------------------------------------------------- */
|
| 1052 |
|
| 1053 |
static void Int32_To_UInt8_Dither( |
| 1054 |
void *destinationBuffer, signed int destinationStride, |
| 1055 |
void *sourceBuffer, signed int sourceStride, |
| 1056 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 1057 |
{
|
| 1058 |
PaInt32 *src = (PaInt32*)sourceBuffer; |
| 1059 |
unsigned char *dest = (unsigned char*)destinationBuffer; |
| 1060 |
(void)ditherGenerator; /* unused parameter */ |
| 1061 |
|
| 1062 |
while( count-- )
|
| 1063 |
{
|
| 1064 |
/* IMPLEMENT ME */
|
| 1065 |
|
| 1066 |
src += sourceStride; |
| 1067 |
dest += destinationStride; |
| 1068 |
} |
| 1069 |
} |
| 1070 |
|
| 1071 |
/* -------------------------------------------------------------------------- */
|
| 1072 |
|
| 1073 |
static void Int24_To_Float32( |
| 1074 |
void *destinationBuffer, signed int destinationStride, |
| 1075 |
void *sourceBuffer, signed int sourceStride, |
| 1076 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 1077 |
{
|
| 1078 |
unsigned char *src = (unsigned char*)sourceBuffer; |
| 1079 |
float *dest = (float*)destinationBuffer; |
| 1080 |
PaInt32 temp; |
| 1081 |
|
| 1082 |
(void) ditherGenerator; /* unused parameter */ |
| 1083 |
|
| 1084 |
while( count-- )
|
| 1085 |
{
|
| 1086 |
|
| 1087 |
#if defined(PA_LITTLE_ENDIAN)
|
| 1088 |
temp = (((PaInt32)src[0]) << 8); |
| 1089 |
temp = temp | (((PaInt32)src[1]) << 16); |
| 1090 |
temp = temp | (((PaInt32)src[2]) << 24); |
| 1091 |
#elif defined(PA_BIG_ENDIAN)
|
| 1092 |
temp = (((PaInt32)src[0]) << 24); |
| 1093 |
temp = temp | (((PaInt32)src[1]) << 16); |
| 1094 |
temp = temp | (((PaInt32)src[2]) << 8); |
| 1095 |
#endif
|
| 1096 |
|
| 1097 |
*dest = (float) ((double)temp * const_1_div_2147483648_); |
| 1098 |
|
| 1099 |
src += sourceStride * 3;
|
| 1100 |
dest += destinationStride; |
| 1101 |
} |
| 1102 |
} |
| 1103 |
|
| 1104 |
/* -------------------------------------------------------------------------- */
|
| 1105 |
|
| 1106 |
static void Int24_To_Int32( |
| 1107 |
void *destinationBuffer, signed int destinationStride, |
| 1108 |
void *sourceBuffer, signed int sourceStride, |
| 1109 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 1110 |
{
|
| 1111 |
unsigned char *src = (unsigned char*)sourceBuffer; |
| 1112 |
PaInt32 *dest = (PaInt32*) destinationBuffer; |
| 1113 |
PaInt32 temp; |
| 1114 |
|
| 1115 |
(void) ditherGenerator; /* unused parameter */ |
| 1116 |
|
| 1117 |
while( count-- )
|
| 1118 |
{
|
| 1119 |
|
| 1120 |
#if defined(PA_LITTLE_ENDIAN)
|
| 1121 |
temp = (((PaInt32)src[0]) << 8); |
| 1122 |
temp = temp | (((PaInt32)src[1]) << 16); |
| 1123 |
temp = temp | (((PaInt32)src[2]) << 24); |
| 1124 |
#elif defined(PA_BIG_ENDIAN)
|
| 1125 |
temp = (((PaInt32)src[0]) << 24); |
| 1126 |
temp = temp | (((PaInt32)src[1]) << 16); |
| 1127 |
temp = temp | (((PaInt32)src[2]) << 8); |
| 1128 |
#endif
|
| 1129 |
|
| 1130 |
*dest = temp; |
| 1131 |
|
| 1132 |
src += sourceStride * 3;
|
| 1133 |
dest += destinationStride; |
| 1134 |
} |
| 1135 |
} |
| 1136 |
|
| 1137 |
/* -------------------------------------------------------------------------- */
|
| 1138 |
|
| 1139 |
static void Int24_To_Int16( |
| 1140 |
void *destinationBuffer, signed int destinationStride, |
| 1141 |
void *sourceBuffer, signed int sourceStride, |
| 1142 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 1143 |
{
|
| 1144 |
unsigned char *src = (unsigned char*)sourceBuffer; |
| 1145 |
PaInt16 *dest = (PaInt16*)destinationBuffer; |
| 1146 |
|
| 1147 |
PaInt16 temp; |
| 1148 |
|
| 1149 |
(void) ditherGenerator; /* unused parameter */ |
| 1150 |
|
| 1151 |
while( count-- )
|
| 1152 |
{
|
| 1153 |
|
| 1154 |
#if defined(PA_LITTLE_ENDIAN)
|
| 1155 |
/* src[0] is discarded */
|
| 1156 |
temp = (((PaInt16)src[1]));
|
| 1157 |
temp = temp | (PaInt16)(((PaInt16)src[2]) << 8); |
| 1158 |
#elif defined(PA_BIG_ENDIAN)
|
| 1159 |
/* src[2] is discarded */
|
| 1160 |
temp = (PaInt16)(((PaInt16)src[0]) << 8); |
| 1161 |
temp = temp | (((PaInt16)src[1]));
|
| 1162 |
#endif
|
| 1163 |
|
| 1164 |
*dest = temp; |
| 1165 |
|
| 1166 |
src += sourceStride * 3;
|
| 1167 |
dest += destinationStride; |
| 1168 |
} |
| 1169 |
} |
| 1170 |
|
| 1171 |
/* -------------------------------------------------------------------------- */
|
| 1172 |
|
| 1173 |
static void Int24_To_Int16_Dither( |
| 1174 |
void *destinationBuffer, signed int destinationStride, |
| 1175 |
void *sourceBuffer, signed int sourceStride, |
| 1176 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 1177 |
{
|
| 1178 |
unsigned char *src = (unsigned char*)sourceBuffer; |
| 1179 |
PaInt16 *dest = (PaInt16*)destinationBuffer; |
| 1180 |
|
| 1181 |
PaInt32 temp, dither; |
| 1182 |
|
| 1183 |
while( count-- )
|
| 1184 |
{
|
| 1185 |
|
| 1186 |
#if defined(PA_LITTLE_ENDIAN)
|
| 1187 |
temp = (((PaInt32)src[0]) << 8); |
| 1188 |
temp = temp | (((PaInt32)src[1]) << 16); |
| 1189 |
temp = temp | (((PaInt32)src[2]) << 24); |
| 1190 |
#elif defined(PA_BIG_ENDIAN)
|
| 1191 |
temp = (((PaInt32)src[0]) << 24); |
| 1192 |
temp = temp | (((PaInt32)src[1]) << 16); |
| 1193 |
temp = temp | (((PaInt32)src[2]) << 8); |
| 1194 |
#endif
|
| 1195 |
|
| 1196 |
/* REVIEW */
|
| 1197 |
dither = PaUtil_Generate16BitTriangularDither( ditherGenerator ); |
| 1198 |
*dest = (PaInt16) (((temp >> 1) + dither) >> 15); |
| 1199 |
|
| 1200 |
src += sourceStride * 3;
|
| 1201 |
dest += destinationStride; |
| 1202 |
} |
| 1203 |
} |
| 1204 |
|
| 1205 |
/* -------------------------------------------------------------------------- */
|
| 1206 |
|
| 1207 |
static void Int24_To_Int8( |
| 1208 |
void *destinationBuffer, signed int destinationStride, |
| 1209 |
void *sourceBuffer, signed int sourceStride, |
| 1210 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 1211 |
{
|
| 1212 |
unsigned char *src = (unsigned char*)sourceBuffer; |
| 1213 |
signed char *dest = (signed char*)destinationBuffer; |
| 1214 |
|
| 1215 |
(void) ditherGenerator; /* unused parameter */ |
| 1216 |
|
| 1217 |
while( count-- )
|
| 1218 |
{
|
| 1219 |
|
| 1220 |
#if defined(PA_LITTLE_ENDIAN)
|
| 1221 |
/* src[0] is discarded */
|
| 1222 |
/* src[1] is discarded */
|
| 1223 |
*dest = src[2];
|
| 1224 |
#elif defined(PA_BIG_ENDIAN)
|
| 1225 |
/* src[2] is discarded */
|
| 1226 |
/* src[1] is discarded */
|
| 1227 |
*dest = src[0];
|
| 1228 |
#endif
|
| 1229 |
|
| 1230 |
src += sourceStride * 3;
|
| 1231 |
dest += destinationStride; |
| 1232 |
} |
| 1233 |
} |
| 1234 |
|
| 1235 |
/* -------------------------------------------------------------------------- */
|
| 1236 |
|
| 1237 |
static void Int24_To_Int8_Dither( |
| 1238 |
void *destinationBuffer, signed int destinationStride, |
| 1239 |
void *sourceBuffer, signed int sourceStride, |
| 1240 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 1241 |
{
|
| 1242 |
unsigned char *src = (unsigned char*)sourceBuffer; |
| 1243 |
signed char *dest = (signed char*)destinationBuffer; |
| 1244 |
|
| 1245 |
PaInt32 temp, dither; |
| 1246 |
|
| 1247 |
while( count-- )
|
| 1248 |
{
|
| 1249 |
|
| 1250 |
#if defined(PA_LITTLE_ENDIAN)
|
| 1251 |
temp = (((PaInt32)src[0]) << 8); |
| 1252 |
temp = temp | (((PaInt32)src[1]) << 16); |
| 1253 |
temp = temp | (((PaInt32)src[2]) << 24); |
| 1254 |
#elif defined(PA_BIG_ENDIAN)
|
| 1255 |
temp = (((PaInt32)src[0]) << 24); |
| 1256 |
temp = temp | (((PaInt32)src[1]) << 16); |
| 1257 |
temp = temp | (((PaInt32)src[2]) << 8); |
| 1258 |
#endif
|
| 1259 |
|
| 1260 |
/* REVIEW */
|
| 1261 |
dither = PaUtil_Generate16BitTriangularDither( ditherGenerator ); |
| 1262 |
*dest = (signed char) (((temp >> 1) + dither) >> 23); |
| 1263 |
|
| 1264 |
src += sourceStride * 3;
|
| 1265 |
dest += destinationStride; |
| 1266 |
} |
| 1267 |
} |
| 1268 |
|
| 1269 |
/* -------------------------------------------------------------------------- */
|
| 1270 |
|
| 1271 |
static void Int24_To_UInt8( |
| 1272 |
void *destinationBuffer, signed int destinationStride, |
| 1273 |
void *sourceBuffer, signed int sourceStride, |
| 1274 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 1275 |
{
|
| 1276 |
unsigned char *src = (unsigned char*)sourceBuffer; |
| 1277 |
unsigned char *dest = (unsigned char*)destinationBuffer; |
| 1278 |
|
| 1279 |
(void) ditherGenerator; /* unused parameter */ |
| 1280 |
|
| 1281 |
while( count-- )
|
| 1282 |
{
|
| 1283 |
|
| 1284 |
#if defined(PA_LITTLE_ENDIAN)
|
| 1285 |
/* src[0] is discarded */
|
| 1286 |
/* src[1] is discarded */
|
| 1287 |
*dest = (unsigned char)(src[2] + 128); |
| 1288 |
#elif defined(PA_BIG_ENDIAN)
|
| 1289 |
*dest = (unsigned char)(src[0] + 128); |
| 1290 |
/* src[1] is discarded */
|
| 1291 |
/* src[2] is discarded */
|
| 1292 |
#endif
|
| 1293 |
|
| 1294 |
src += sourceStride * 3;
|
| 1295 |
dest += destinationStride; |
| 1296 |
} |
| 1297 |
} |
| 1298 |
|
| 1299 |
/* -------------------------------------------------------------------------- */
|
| 1300 |
|
| 1301 |
static void Int24_To_UInt8_Dither( |
| 1302 |
void *destinationBuffer, signed int destinationStride, |
| 1303 |
void *sourceBuffer, signed int sourceStride, |
| 1304 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 1305 |
{
|
| 1306 |
(void) destinationBuffer; /* unused parameters */ |
| 1307 |
(void) destinationStride; /* unused parameters */ |
| 1308 |
(void) sourceBuffer; /* unused parameters */ |
| 1309 |
(void) sourceStride; /* unused parameters */ |
| 1310 |
(void) count; /* unused parameters */ |
| 1311 |
(void) ditherGenerator; /* unused parameters */ |
| 1312 |
/* IMPLEMENT ME */
|
| 1313 |
} |
| 1314 |
|
| 1315 |
/* -------------------------------------------------------------------------- */
|
| 1316 |
|
| 1317 |
static void Int16_To_Float32( |
| 1318 |
void *destinationBuffer, signed int destinationStride, |
| 1319 |
void *sourceBuffer, signed int sourceStride, |
| 1320 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 1321 |
{
|
| 1322 |
PaInt16 *src = (PaInt16*)sourceBuffer; |
| 1323 |
float *dest = (float*)destinationBuffer; |
| 1324 |
(void)ditherGenerator; /* unused parameter */ |
| 1325 |
|
| 1326 |
while( count-- )
|
| 1327 |
{
|
| 1328 |
float samp = *src * const_1_div_32768_; /* FIXME: i'm concerned about this being asymetrical with float->int16 -rb */ |
| 1329 |
*dest = samp; |
| 1330 |
|
| 1331 |
src += sourceStride; |
| 1332 |
dest += destinationStride; |
| 1333 |
} |
| 1334 |
} |
| 1335 |
|
| 1336 |
/* -------------------------------------------------------------------------- */
|
| 1337 |
|
| 1338 |
static void Int16_To_Int32( |
| 1339 |
void *destinationBuffer, signed int destinationStride, |
| 1340 |
void *sourceBuffer, signed int sourceStride, |
| 1341 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 1342 |
{
|
| 1343 |
PaInt16 *src = (PaInt16*)sourceBuffer; |
| 1344 |
PaInt32 *dest = (PaInt32*)destinationBuffer; |
| 1345 |
(void)ditherGenerator; /* unused parameter */ |
| 1346 |
|
| 1347 |
while( count-- )
|
| 1348 |
{
|
| 1349 |
/* REVIEW: we should consider something like
|
| 1350 |
(*src << 16) | (*src & 0xFFFF)
|
| 1351 |
*/
|
| 1352 |
|
| 1353 |
*dest = *src << 16;
|
| 1354 |
|
| 1355 |
src += sourceStride; |
| 1356 |
dest += destinationStride; |
| 1357 |
} |
| 1358 |
} |
| 1359 |
|
| 1360 |
/* -------------------------------------------------------------------------- */
|
| 1361 |
|
| 1362 |
static void Int16_To_Int24( |
| 1363 |
void *destinationBuffer, signed int destinationStride, |
| 1364 |
void *sourceBuffer, signed int sourceStride, |
| 1365 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 1366 |
{
|
| 1367 |
PaInt16 *src = (PaInt16*) sourceBuffer; |
| 1368 |
unsigned char *dest = (unsigned char*)destinationBuffer; |
| 1369 |
PaInt16 temp; |
| 1370 |
|
| 1371 |
(void) ditherGenerator; /* unused parameter */ |
| 1372 |
|
| 1373 |
while( count-- )
|
| 1374 |
{
|
| 1375 |
temp = *src; |
| 1376 |
|
| 1377 |
#if defined(PA_LITTLE_ENDIAN)
|
| 1378 |
dest[0] = 0; |
| 1379 |
dest[1] = (unsigned char)(temp); |
| 1380 |
dest[2] = (unsigned char)(temp >> 8); |
| 1381 |
#elif defined(PA_BIG_ENDIAN)
|
| 1382 |
dest[0] = (unsigned char)(temp >> 8); |
| 1383 |
dest[1] = (unsigned char)(temp); |
| 1384 |
dest[2] = 0; |
| 1385 |
#endif
|
| 1386 |
|
| 1387 |
src += sourceStride; |
| 1388 |
dest += destinationStride * 3;
|
| 1389 |
} |
| 1390 |
} |
| 1391 |
|
| 1392 |
/* -------------------------------------------------------------------------- */
|
| 1393 |
|
| 1394 |
static void Int16_To_Int8( |
| 1395 |
void *destinationBuffer, signed int destinationStride, |
| 1396 |
void *sourceBuffer, signed int sourceStride, |
| 1397 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 1398 |
{
|
| 1399 |
PaInt16 *src = (PaInt16*)sourceBuffer; |
| 1400 |
signed char *dest = (signed char*)destinationBuffer; |
| 1401 |
(void)ditherGenerator; /* unused parameter */ |
| 1402 |
|
| 1403 |
while( count-- )
|
| 1404 |
{
|
| 1405 |
(*dest) = (signed char)((*src) >> 8); |
| 1406 |
|
| 1407 |
src += sourceStride; |
| 1408 |
dest += destinationStride; |
| 1409 |
} |
| 1410 |
} |
| 1411 |
|
| 1412 |
/* -------------------------------------------------------------------------- */
|
| 1413 |
|
| 1414 |
static void Int16_To_Int8_Dither( |
| 1415 |
void *destinationBuffer, signed int destinationStride, |
| 1416 |
void *sourceBuffer, signed int sourceStride, |
| 1417 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 1418 |
{
|
| 1419 |
PaInt16 *src = (PaInt16*)sourceBuffer; |
| 1420 |
signed char *dest = (signed char*)destinationBuffer; |
| 1421 |
(void)ditherGenerator; /* unused parameter */ |
| 1422 |
|
| 1423 |
while( count-- )
|
| 1424 |
{
|
| 1425 |
/* IMPLEMENT ME */
|
| 1426 |
|
| 1427 |
src += sourceStride; |
| 1428 |
dest += destinationStride; |
| 1429 |
} |
| 1430 |
} |
| 1431 |
|
| 1432 |
/* -------------------------------------------------------------------------- */
|
| 1433 |
|
| 1434 |
static void Int16_To_UInt8( |
| 1435 |
void *destinationBuffer, signed int destinationStride, |
| 1436 |
void *sourceBuffer, signed int sourceStride, |
| 1437 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 1438 |
{
|
| 1439 |
PaInt16 *src = (PaInt16*)sourceBuffer; |
| 1440 |
unsigned char *dest = (unsigned char*)destinationBuffer; |
| 1441 |
(void)ditherGenerator; /* unused parameter */ |
| 1442 |
|
| 1443 |
while( count-- )
|
| 1444 |
{
|
| 1445 |
(*dest) = (unsigned char)(((*src) >> 8) + 128); |
| 1446 |
|
| 1447 |
src += sourceStride; |
| 1448 |
dest += destinationStride; |
| 1449 |
} |
| 1450 |
} |
| 1451 |
|
| 1452 |
/* -------------------------------------------------------------------------- */
|
| 1453 |
|
| 1454 |
static void Int16_To_UInt8_Dither( |
| 1455 |
void *destinationBuffer, signed int destinationStride, |
| 1456 |
void *sourceBuffer, signed int sourceStride, |
| 1457 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 1458 |
{
|
| 1459 |
PaInt16 *src = (PaInt16*)sourceBuffer; |
| 1460 |
unsigned char *dest = (unsigned char*)destinationBuffer; |
| 1461 |
(void)ditherGenerator; /* unused parameter */ |
| 1462 |
|
| 1463 |
while( count-- )
|
| 1464 |
{
|
| 1465 |
/* IMPLEMENT ME */
|
| 1466 |
|
| 1467 |
src += sourceStride; |
| 1468 |
dest += destinationStride; |
| 1469 |
} |
| 1470 |
} |
| 1471 |
|
| 1472 |
/* -------------------------------------------------------------------------- */
|
| 1473 |
|
| 1474 |
static void Int8_To_Float32( |
| 1475 |
void *destinationBuffer, signed int destinationStride, |
| 1476 |
void *sourceBuffer, signed int sourceStride, |
| 1477 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 1478 |
{
|
| 1479 |
signed char *src = (signed char*)sourceBuffer; |
| 1480 |
float *dest = (float*)destinationBuffer; |
| 1481 |
(void)ditherGenerator; /* unused parameter */ |
| 1482 |
|
| 1483 |
while( count-- )
|
| 1484 |
{
|
| 1485 |
float samp = *src * const_1_div_128_;
|
| 1486 |
*dest = samp; |
| 1487 |
|
| 1488 |
src += sourceStride; |
| 1489 |
dest += destinationStride; |
| 1490 |
} |
| 1491 |
} |
| 1492 |
|
| 1493 |
/* -------------------------------------------------------------------------- */
|
| 1494 |
|
| 1495 |
static void Int8_To_Int32( |
| 1496 |
void *destinationBuffer, signed int destinationStride, |
| 1497 |
void *sourceBuffer, signed int sourceStride, |
| 1498 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 1499 |
{
|
| 1500 |
signed char *src = (signed char*)sourceBuffer; |
| 1501 |
PaInt32 *dest = (PaInt32*)destinationBuffer; |
| 1502 |
(void)ditherGenerator; /* unused parameter */ |
| 1503 |
|
| 1504 |
while( count-- )
|
| 1505 |
{
|
| 1506 |
(*dest) = (*src) << 24;
|
| 1507 |
|
| 1508 |
src += sourceStride; |
| 1509 |
dest += destinationStride; |
| 1510 |
} |
| 1511 |
} |
| 1512 |
|
| 1513 |
/* -------------------------------------------------------------------------- */
|
| 1514 |
|
| 1515 |
static void Int8_To_Int24( |
| 1516 |
void *destinationBuffer, signed int destinationStride, |
| 1517 |
void *sourceBuffer, signed int sourceStride, |
| 1518 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 1519 |
{
|
| 1520 |
signed char *src = (signed char*)sourceBuffer; |
| 1521 |
unsigned char *dest = (unsigned char*)destinationBuffer; |
| 1522 |
(void)ditherGenerator; /* unused parameter */ |
| 1523 |
|
| 1524 |
while( count-- )
|
| 1525 |
{
|
| 1526 |
|
| 1527 |
#if defined(PA_LITTLE_ENDIAN)
|
| 1528 |
dest[0] = 0; |
| 1529 |
dest[1] = 0; |
| 1530 |
dest[2] = (*src);
|
| 1531 |
#elif defined(PA_BIG_ENDIAN)
|
| 1532 |
dest[0] = (*src);
|
| 1533 |
dest[1] = 0; |
| 1534 |
dest[2] = 0; |
| 1535 |
#endif
|
| 1536 |
|
| 1537 |
src += sourceStride; |
| 1538 |
dest += destinationStride * 3;
|
| 1539 |
} |
| 1540 |
} |
| 1541 |
|
| 1542 |
/* -------------------------------------------------------------------------- */
|
| 1543 |
|
| 1544 |
static void Int8_To_Int16( |
| 1545 |
void *destinationBuffer, signed int destinationStride, |
| 1546 |
void *sourceBuffer, signed int sourceStride, |
| 1547 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 1548 |
{
|
| 1549 |
signed char *src = (signed char*)sourceBuffer; |
| 1550 |
PaInt16 *dest = (PaInt16*)destinationBuffer; |
| 1551 |
(void)ditherGenerator; /* unused parameter */ |
| 1552 |
|
| 1553 |
while( count-- )
|
| 1554 |
{
|
| 1555 |
(*dest) = (PaInt16)((*src) << 8);
|
| 1556 |
|
| 1557 |
src += sourceStride; |
| 1558 |
dest += destinationStride; |
| 1559 |
} |
| 1560 |
} |
| 1561 |
|
| 1562 |
/* -------------------------------------------------------------------------- */
|
| 1563 |
|
| 1564 |
static void Int8_To_UInt8( |
| 1565 |
void *destinationBuffer, signed int destinationStride, |
| 1566 |
void *sourceBuffer, signed int sourceStride, |
| 1567 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 1568 |
{
|
| 1569 |
signed char *src = (signed char*)sourceBuffer; |
| 1570 |
unsigned char *dest = (unsigned char*)destinationBuffer; |
| 1571 |
(void)ditherGenerator; /* unused parameter */ |
| 1572 |
|
| 1573 |
while( count-- )
|
| 1574 |
{
|
| 1575 |
(*dest) = (unsigned char)(*src + 128); |
| 1576 |
|
| 1577 |
src += sourceStride; |
| 1578 |
dest += destinationStride; |
| 1579 |
} |
| 1580 |
} |
| 1581 |
|
| 1582 |
/* -------------------------------------------------------------------------- */
|
| 1583 |
|
| 1584 |
static void UInt8_To_Float32( |
| 1585 |
void *destinationBuffer, signed int destinationStride, |
| 1586 |
void *sourceBuffer, signed int sourceStride, |
| 1587 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 1588 |
{
|
| 1589 |
unsigned char *src = (unsigned char*)sourceBuffer; |
| 1590 |
float *dest = (float*)destinationBuffer; |
| 1591 |
(void)ditherGenerator; /* unused parameter */ |
| 1592 |
|
| 1593 |
while( count-- )
|
| 1594 |
{
|
| 1595 |
float samp = (*src - 128) * const_1_div_128_; |
| 1596 |
*dest = samp; |
| 1597 |
|
| 1598 |
src += sourceStride; |
| 1599 |
dest += destinationStride; |
| 1600 |
} |
| 1601 |
} |
| 1602 |
|
| 1603 |
/* -------------------------------------------------------------------------- */
|
| 1604 |
|
| 1605 |
static void UInt8_To_Int32( |
| 1606 |
void *destinationBuffer, signed int destinationStride, |
| 1607 |
void *sourceBuffer, signed int sourceStride, |
| 1608 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 1609 |
{
|
| 1610 |
unsigned char *src = (unsigned char*)sourceBuffer; |
| 1611 |
PaInt32 *dest = (PaInt32*)destinationBuffer; |
| 1612 |
(void)ditherGenerator; /* unused parameter */ |
| 1613 |
|
| 1614 |
while( count-- )
|
| 1615 |
{
|
| 1616 |
(*dest) = (*src - 128) << 24; |
| 1617 |
|
| 1618 |
src += sourceStride; |
| 1619 |
dest += destinationStride; |
| 1620 |
} |
| 1621 |
} |
| 1622 |
|
| 1623 |
/* -------------------------------------------------------------------------- */
|
| 1624 |
|
| 1625 |
static void UInt8_To_Int24( |
| 1626 |
void *destinationBuffer, signed int destinationStride, |
| 1627 |
void *sourceBuffer, signed int sourceStride, |
| 1628 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 1629 |
{
|
| 1630 |
unsigned char *src = (unsigned char*)sourceBuffer; |
| 1631 |
unsigned char *dest = (unsigned char*)destinationBuffer; |
| 1632 |
(void) ditherGenerator; /* unused parameters */ |
| 1633 |
|
| 1634 |
while( count-- )
|
| 1635 |
{
|
| 1636 |
|
| 1637 |
#if defined(PA_LITTLE_ENDIAN)
|
| 1638 |
dest[0] = 0; |
| 1639 |
dest[1] = 0; |
| 1640 |
dest[2] = (unsigned char)(*src - 128); |
| 1641 |
#elif defined(PA_BIG_ENDIAN)
|
| 1642 |
dest[0] = (unsigned char)(*src - 128); |
| 1643 |
dest[1] = 0; |
| 1644 |
dest[2] = 0; |
| 1645 |
#endif
|
| 1646 |
|
| 1647 |
src += sourceStride; |
| 1648 |
dest += destinationStride * 3;
|
| 1649 |
} |
| 1650 |
} |
| 1651 |
|
| 1652 |
/* -------------------------------------------------------------------------- */
|
| 1653 |
|
| 1654 |
static void UInt8_To_Int16( |
| 1655 |
void *destinationBuffer, signed int destinationStride, |
| 1656 |
void *sourceBuffer, signed int sourceStride, |
| 1657 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 1658 |
{
|
| 1659 |
unsigned char *src = (unsigned char*)sourceBuffer; |
| 1660 |
PaInt16 *dest = (PaInt16*)destinationBuffer; |
| 1661 |
(void)ditherGenerator; /* unused parameter */ |
| 1662 |
|
| 1663 |
while( count-- )
|
| 1664 |
{
|
| 1665 |
(*dest) = (PaInt16)((*src - 128) << 8); |
| 1666 |
|
| 1667 |
src += sourceStride; |
| 1668 |
dest += destinationStride; |
| 1669 |
} |
| 1670 |
} |
| 1671 |
|
| 1672 |
/* -------------------------------------------------------------------------- */
|
| 1673 |
|
| 1674 |
static void UInt8_To_Int8( |
| 1675 |
void *destinationBuffer, signed int destinationStride, |
| 1676 |
void *sourceBuffer, signed int sourceStride, |
| 1677 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 1678 |
{
|
| 1679 |
unsigned char *src = (unsigned char*)sourceBuffer; |
| 1680 |
signed char *dest = (signed char*)destinationBuffer; |
| 1681 |
(void)ditherGenerator; /* unused parameter */ |
| 1682 |
|
| 1683 |
while( count-- )
|
| 1684 |
{
|
| 1685 |
(*dest) = (signed char)(*src - 128); |
| 1686 |
|
| 1687 |
src += sourceStride; |
| 1688 |
dest += destinationStride; |
| 1689 |
} |
| 1690 |
} |
| 1691 |
|
| 1692 |
/* -------------------------------------------------------------------------- */
|
| 1693 |
|
| 1694 |
static void Copy_8_To_8( |
| 1695 |
void *destinationBuffer, signed int destinationStride, |
| 1696 |
void *sourceBuffer, signed int sourceStride, |
| 1697 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 1698 |
{
|
| 1699 |
unsigned char *src = (unsigned char*)sourceBuffer; |
| 1700 |
unsigned char *dest = (unsigned char*)destinationBuffer; |
| 1701 |
|
| 1702 |
(void) ditherGenerator; /* unused parameter */ |
| 1703 |
|
| 1704 |
while( count-- )
|
| 1705 |
{
|
| 1706 |
*dest = *src; |
| 1707 |
|
| 1708 |
src += sourceStride; |
| 1709 |
dest += destinationStride; |
| 1710 |
} |
| 1711 |
} |
| 1712 |
|
| 1713 |
/* -------------------------------------------------------------------------- */
|
| 1714 |
|
| 1715 |
static void Copy_16_To_16( |
| 1716 |
void *destinationBuffer, signed int destinationStride, |
| 1717 |
void *sourceBuffer, signed int sourceStride, |
| 1718 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 1719 |
{
|
| 1720 |
PaUint16 *src = (PaUint16 *)sourceBuffer; |
| 1721 |
PaUint16 *dest = (PaUint16 *)destinationBuffer; |
| 1722 |
|
| 1723 |
(void) ditherGenerator; /* unused parameter */ |
| 1724 |
|
| 1725 |
while( count-- )
|
| 1726 |
{
|
| 1727 |
*dest = *src; |
| 1728 |
|
| 1729 |
src += sourceStride; |
| 1730 |
dest += destinationStride; |
| 1731 |
} |
| 1732 |
} |
| 1733 |
|
| 1734 |
/* -------------------------------------------------------------------------- */
|
| 1735 |
|
| 1736 |
static void Copy_24_To_24( |
| 1737 |
void *destinationBuffer, signed int destinationStride, |
| 1738 |
void *sourceBuffer, signed int sourceStride, |
| 1739 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 1740 |
{
|
| 1741 |
unsigned char *src = (unsigned char*)sourceBuffer; |
| 1742 |
unsigned char *dest = (unsigned char*)destinationBuffer; |
| 1743 |
|
| 1744 |
(void) ditherGenerator; /* unused parameter */ |
| 1745 |
|
| 1746 |
while( count-- )
|
| 1747 |
{
|
| 1748 |
dest[0] = src[0]; |
| 1749 |
dest[1] = src[1]; |
| 1750 |
dest[2] = src[2]; |
| 1751 |
|
| 1752 |
src += sourceStride * 3;
|
| 1753 |
dest += destinationStride * 3;
|
| 1754 |
} |
| 1755 |
} |
| 1756 |
|
| 1757 |
/* -------------------------------------------------------------------------- */
|
| 1758 |
|
| 1759 |
static void Copy_32_To_32( |
| 1760 |
void *destinationBuffer, signed int destinationStride, |
| 1761 |
void *sourceBuffer, signed int sourceStride, |
| 1762 |
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) |
| 1763 |
{
|
| 1764 |
PaUint32 *dest = (PaUint32 *)destinationBuffer; |
| 1765 |
PaUint32 *src = (PaUint32 *)sourceBuffer; |
| 1766 |
|
| 1767 |
(void) ditherGenerator; /* unused parameter */ |
| 1768 |
|
| 1769 |
while( count-- )
|
| 1770 |
{
|
| 1771 |
*dest = *src; |
| 1772 |
|
| 1773 |
src += sourceStride; |
| 1774 |
dest += destinationStride; |
| 1775 |
} |
| 1776 |
} |
| 1777 |
|
| 1778 |
/* -------------------------------------------------------------------------- */
|
| 1779 |
|
| 1780 |
PaUtilConverterTable paConverters = {
|
| 1781 |
Float32_To_Int32, /* PaUtilConverter *Float32_To_Int32; */
|
| 1782 |
Float32_To_Int32_Dither, /* PaUtilConverter *Float32_To_Int32_Dither; */
|
| 1783 |
Float32_To_Int32_Clip, /* PaUtilConverter *Float32_To_Int32_Clip; */
|
| 1784 |
Float32_To_Int32_DitherClip, /* PaUtilConverter *Float32_To_Int32_DitherClip; */
|
| 1785 |
|
| 1786 |
Float32_To_Int24, /* PaUtilConverter *Float32_To_Int24; */
|
| 1787 |
Float32_To_Int24_Dither, /* PaUtilConverter *Float32_To_Int24_Dither; */
|
| 1788 |
Float32_To_Int24_Clip, /* PaUtilConverter *Float32_To_Int24_Clip; */
|
| 1789 |
Float32_To_Int24_DitherClip, /* PaUtilConverter *Float32_To_Int24_DitherClip; */
|
| 1790 |
|
| 1791 |
Float32_To_Int16, /* PaUtilConverter *Float32_To_Int16; */
|
| 1792 |
Float32_To_Int16_Dither, /* PaUtilConverter *Float32_To_Int16_Dither; */
|
| 1793 |
Float32_To_Int16_Clip, /* PaUtilConverter *Float32_To_Int16_Clip; */
|
| 1794 |
Float32_To_Int16_DitherClip, /* PaUtilConverter *Float32_To_Int16_DitherClip; */
|
| 1795 |
|
| 1796 |
Float32_To_Int8, /* PaUtilConverter *Float32_To_Int8; */
|
| 1797 |
Float32_To_Int8_Dither, /* PaUtilConverter *Float32_To_Int8_Dither; */
|
| 1798 |
Float32_To_Int8_Clip, /* PaUtilConverter *Float32_To_Int8_Clip; */
|
| 1799 |
Float32_To_Int8_DitherClip, /* PaUtilConverter *Float32_To_Int8_DitherClip; */
|
| 1800 |
|
| 1801 |
Float32_To_UInt8, /* PaUtilConverter *Float32_To_UInt8; */
|
| 1802 |
Float32_To_UInt8_Dither, /* PaUtilConverter *Float32_To_UInt8_Dither; */
|
| 1803 |
Float32_To_UInt8_Clip, /* PaUtilConverter *Float32_To_UInt8_Clip; */
|
| 1804 |
Float32_To_UInt8_DitherClip, /* PaUtilConverter *Float32_To_UInt8_DitherClip; */
|
| 1805 |
|
| 1806 |
Int32_To_Float32, /* PaUtilConverter *Int32_To_Float32; */
|
| 1807 |
Int32_To_Int24, /* PaUtilConverter *Int32_To_Int24; */
|
| 1808 |
Int32_To_Int24_Dither, /* PaUtilConverter *Int32_To_Int24_Dither; */
|
| 1809 |
Int32_To_Int16, /* PaUtilConverter *Int32_To_Int16; */
|
| 1810 |
Int32_To_Int16_Dither, /* PaUtilConverter *Int32_To_Int16_Dither; */
|
| 1811 |
Int32_To_Int8, /* PaUtilConverter *Int32_To_Int8; */
|
| 1812 |
Int32_To_Int8_Dither, /* PaUtilConverter *Int32_To_Int8_Dither; */
|
| 1813 |
Int32_To_UInt8, /* PaUtilConverter *Int32_To_UInt8; */
|
| 1814 |
Int32_To_UInt8_Dither, /* PaUtilConverter *Int32_To_UInt8_Dither; */
|
| 1815 |
|
| 1816 |
Int24_To_Float32, /* PaUtilConverter *Int24_To_Float32; */
|
| 1817 |
Int24_To_Int32, /* PaUtilConverter *Int24_To_Int32; */
|
| 1818 |
Int24_To_Int16, /* PaUtilConverter *Int24_To_Int16; */
|
| 1819 |
Int24_To_Int16_Dither, /* PaUtilConverter *Int24_To_Int16_Dither; */
|
| 1820 |
Int24_To_Int8, /* PaUtilConverter *Int24_To_Int8; */
|
| 1821 |
Int24_To_Int8_Dither, /* PaUtilConverter *Int24_To_Int8_Dither; */
|
| 1822 |
Int24_To_UInt8, /* PaUtilConverter *Int24_To_UInt8; */
|
| 1823 |
Int24_To_UInt8_Dither, /* PaUtilConverter *Int24_To_UInt8_Dither; */
|
| 1824 |
|
| 1825 |
Int16_To_Float32, /* PaUtilConverter *Int16_To_Float32; */
|
| 1826 |
Int16_To_Int32, /* PaUtilConverter *Int16_To_Int32; */
|
| 1827 |
Int16_To_Int24, /* PaUtilConverter *Int16_To_Int24; */
|
| 1828 |
Int16_To_Int8, /* PaUtilConverter *Int16_To_Int8; */
|
| 1829 |
Int16_To_Int8_Dither, /* PaUtilConverter *Int16_To_Int8_Dither; */
|
| 1830 |
Int16_To_UInt8, /* PaUtilConverter *Int16_To_UInt8; */
|
| 1831 |
Int16_To_UInt8_Dither, /* PaUtilConverter *Int16_To_UInt8_Dither; */
|
| 1832 |
|
| 1833 |
Int8_To_Float32, /* PaUtilConverter *Int8_To_Float32; */
|
| 1834 |
Int8_To_Int32, /* PaUtilConverter *Int8_To_Int32; */
|
| 1835 |
Int8_To_Int24, /* PaUtilConverter *Int8_To_Int24 */
|
| 1836 |
Int8_To_Int16, /* PaUtilConverter *Int8_To_Int16; */
|
| 1837 |
Int8_To_UInt8, /* PaUtilConverter *Int8_To_UInt8; */
|
| 1838 |
|
| 1839 |
UInt8_To_Float32, /* PaUtilConverter *UInt8_To_Float32; */
|
| 1840 |
UInt8_To_Int32, /* PaUtilConverter *UInt8_To_Int32; */
|
| 1841 |
UInt8_To_Int24, /* PaUtilConverter *UInt8_To_Int24; */
|
| 1842 |
UInt8_To_Int16, /* PaUtilConverter *UInt8_To_Int16; */
|
| 1843 |
UInt8_To_Int8, /* PaUtilConverter *UInt8_To_Int8; */
|
| 1844 |
|
| 1845 |
Copy_8_To_8, /* PaUtilConverter *Copy_8_To_8; */
|
| 1846 |
Copy_16_To_16, /* PaUtilConverter *Copy_16_To_16; */
|
| 1847 |
Copy_24_To_24, /* PaUtilConverter *Copy_24_To_24; */
|
| 1848 |
Copy_32_To_32 /* PaUtilConverter *Copy_32_To_32; */
|
| 1849 |
}; |
| 1850 |
|
| 1851 |
/* -------------------------------------------------------------------------- */
|
| 1852 |
|
| 1853 |
#endif /* PA_NO_STANDARD_CONVERTERS */ |
| 1854 |
|
| 1855 |
/* -------------------------------------------------------------------------- */
|
| 1856 |
|
| 1857 |
PaUtilZeroer* PaUtil_SelectZeroer( PaSampleFormat destinationFormat ) |
| 1858 |
{
|
| 1859 |
switch( destinationFormat & ~paNonInterleaved ){
|
| 1860 |
case paFloat32:
|
| 1861 |
return paZeroers.Zero32;
|
| 1862 |
case paInt32:
|
| 1863 |
return paZeroers.Zero32;
|
| 1864 |
case paInt24:
|
| 1865 |
return paZeroers.Zero24;
|
| 1866 |
case paInt16:
|
| 1867 |
return paZeroers.Zero16;
|
| 1868 |
case paInt8:
|
| 1869 |
return paZeroers.Zero8;
|
| 1870 |
case paUInt8:
|
| 1871 |
return paZeroers.ZeroU8;
|
| 1872 |
default: return 0; |
| 1873 |
} |
| 1874 |
} |
| 1875 |
|
| 1876 |
/* -------------------------------------------------------------------------- */
|
| 1877 |
|
| 1878 |
#ifdef PA_NO_STANDARD_ZEROERS
|
| 1879 |
|
| 1880 |
/* -------------------------------------------------------------------------- */
|
| 1881 |
|
| 1882 |
PaUtilZeroerTable paZeroers = {
|
| 1883 |
0, /* PaUtilZeroer *ZeroU8; */ |
| 1884 |
0, /* PaUtilZeroer *Zero8; */ |
| 1885 |
0, /* PaUtilZeroer *Zero16; */ |
| 1886 |
0, /* PaUtilZeroer *Zero24; */ |
| 1887 |
0, /* PaUtilZeroer *Zero32; */ |
| 1888 |
}; |
| 1889 |
|
| 1890 |
/* -------------------------------------------------------------------------- */
|
| 1891 |
|
| 1892 |
#else /* PA_NO_STANDARD_ZEROERS is not defined */ |
| 1893 |
|
| 1894 |
/* -------------------------------------------------------------------------- */
|
| 1895 |
|
| 1896 |
static void ZeroU8( void *destinationBuffer, signed int destinationStride, |
| 1897 |
unsigned int count ) |
| 1898 |
{
|
| 1899 |
unsigned char *dest = (unsigned char*)destinationBuffer; |
| 1900 |
|
| 1901 |
while( count-- )
|
| 1902 |
{
|
| 1903 |
*dest = 128;
|
| 1904 |
|
| 1905 |
dest += destinationStride; |
| 1906 |
} |
| 1907 |
} |
| 1908 |
|
| 1909 |
/* -------------------------------------------------------------------------- */
|
| 1910 |
|
| 1911 |
static void Zero8( void *destinationBuffer, signed int destinationStride, |
| 1912 |
unsigned int count ) |
| 1913 |
{
|
| 1914 |
unsigned char *dest = (unsigned char*)destinationBuffer; |
| 1915 |
|
| 1916 |
while( count-- )
|
| 1917 |
{
|
| 1918 |
*dest = 0;
|
| 1919 |
|
| 1920 |
dest += destinationStride; |
| 1921 |
} |
| 1922 |
} |
| 1923 |
|
| 1924 |
/* -------------------------------------------------------------------------- */
|
| 1925 |
|
| 1926 |
static void Zero16( void *destinationBuffer, signed int destinationStride, |
| 1927 |
unsigned int count ) |
| 1928 |
{
|
| 1929 |
PaUint16 *dest = (PaUint16 *)destinationBuffer; |
| 1930 |
|
| 1931 |
while( count-- )
|
| 1932 |
{
|
| 1933 |
*dest = 0;
|
| 1934 |
|
| 1935 |
dest += destinationStride; |
| 1936 |
} |
| 1937 |
} |
| 1938 |
|
| 1939 |
/* -------------------------------------------------------------------------- */
|
| 1940 |
|
| 1941 |
static void Zero24( void *destinationBuffer, signed int destinationStride, |
| 1942 |
unsigned int count ) |
| 1943 |
{
|
| 1944 |
unsigned char *dest = (unsigned char*)destinationBuffer; |
| 1945 |
|
| 1946 |
while( count-- )
|
| 1947 |
{
|
| 1948 |
dest[0] = 0; |
| 1949 |
dest[1] = 0; |
| 1950 |
dest[2] = 0; |
| 1951 |
|
| 1952 |
dest += destinationStride * 3;
|
| 1953 |
} |
| 1954 |
} |
| 1955 |
|
| 1956 |
/* -------------------------------------------------------------------------- */
|
| 1957 |
|
| 1958 |
static void Zero32( void *destinationBuffer, signed int destinationStride, |
| 1959 |
unsigned int count ) |
| 1960 |
{
|
| 1961 |
PaUint32 *dest = (PaUint32 *)destinationBuffer; |
| 1962 |
|
| 1963 |
while( count-- )
|
| 1964 |
{
|
| 1965 |
*dest = 0;
|
| 1966 |
|
| 1967 |
dest += destinationStride; |
| 1968 |
} |
| 1969 |
} |
| 1970 |
|
| 1971 |
/* -------------------------------------------------------------------------- */
|
| 1972 |
|
| 1973 |
PaUtilZeroerTable paZeroers = {
|
| 1974 |
ZeroU8, /* PaUtilZeroer *ZeroU8; */
|
| 1975 |
Zero8, /* PaUtilZeroer *Zero8; */
|
| 1976 |
Zero16, /* PaUtilZeroer *Zero16; */
|
| 1977 |
Zero24, /* PaUtilZeroer *Zero24; */
|
| 1978 |
Zero32, /* PaUtilZeroer *Zero32; */
|
| 1979 |
}; |
| 1980 |
|
| 1981 |
/* -------------------------------------------------------------------------- */
|
| 1982 |
|
| 1983 |
#endif /* PA_NO_STANDARD_ZEROERS */ |