mirror of
https://github.com/signalwire/freeswitch.git
synced 2026-11-15 13:58:32 +00:00
Anthony Minessale
39a9e94305
This updates mod_portaudio to use the new v19 api and also contains
major behavioural changes. This initial check-in should be tested to find
any obscure use cases that lead to crashes etc...
All of the old api interface commands are now depricated and any attempt to
use them should cause a polite warning asking you to try the new single "pa" command.
New Features:
*) Mulitiple calls with hold/call switching.
*) Inbound calls can play a ring file on specified device. (global and per call)
*) Optional hold music for backgrounded calls. (global and per call)
Example dialplan usage:
<extension name="2000">
<condition field="destination_number" expression="^2000$">
<!--if the next 3 lines are omitted the defaults will be used from portaudio.conf-->
<action application="set" data="pa_ring_file=/sounds/myring.wav"/>
<action application="set" data="pa_hold_file=/sounds/myhold.wav"/>
<action application="set" data="export_vars=pa_ring_file,pa_hold_file"/>
<action application="bridge" data="portaudio"/>
</condition>
</extension>
Example API interface usage:
call extension 1000
> pa call 1000
call extension 1001 putting the other call on hold
> pa call 1001
swap the calls between hold and active
> pa switch
view the current calls
> pa list
forground the call with id 1
> pa switch 1
background all calls
> pa switch none
send a dtmf string (1234) to the current call
> pa dtmf 1234
answer the oldest unanswered inbound call
> pa answer
answer the call with id 1
> pa answer 1
hangup the active call
> pa hangup
hangup the call with id 1
> pa hangup 1
get device info
> pa dump
print usage summary
> pa help
USAGE:
--------------------------------------------------------------------------------
pa help
pa dump
pa call <dest> [<dialplan> <cid_name> <cid_num> <rate>]
pa answer [<call_id>]
pa hangup [<call_id>]
pa list
pa switch [<call_id>|none]
pa_dtmf <digit string>
--------------------------------------------------------------------------------
The source of the portaudio v19 library will also be checked in for the
sake of the build system.
git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@3981 d0543943-73ff-0310-b7d9-9358b9ac24b2
1936 lines
66 KiB
C
1936 lines
66 KiB
C
/*
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* $Id: pa_converters.c 1097 2006-08-26 08:27:53Z rossb $
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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 functions 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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@todo implement the converters marked IMPLEMENT ME: Float32_To_UInt8_Dither,
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Float32_To_UInt8_Clip, Float32_To_UInt8_DitherClip, 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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@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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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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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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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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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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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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0, /* PaUtilConverter *Int24_To_Float32; */
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0, /* PaUtilConverter *Int24_To_Int32; */
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0, /* PaUtilConverter *Int24_To_Int16; */
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0, /* PaUtilConverter *Int24_To_Int16_Dither; */
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0, /* PaUtilConverter *Int24_To_Int8; */
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0, /* PaUtilConverter *Int24_To_Int8_Dither; */
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0, /* PaUtilConverter *Int24_To_UInt8; */
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0, /* PaUtilConverter *Int24_To_UInt8_Dither; */
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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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0, /* PaUtilConverter *Int8_To_Float32; */
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0, /* PaUtilConverter *Int8_To_Int32; */
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0, /* PaUtilConverter *Int8_To_Int24 */
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0, /* PaUtilConverter *Int8_To_Int16; */
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0, /* PaUtilConverter *Int8_To_UInt8; */
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0, /* PaUtilConverter *UInt8_To_Float32; */
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0, /* PaUtilConverter *UInt8_To_Int32; */
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0, /* PaUtilConverter *UInt8_To_Int24; */
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0, /* PaUtilConverter *UInt8_To_Int16; */
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0, /* PaUtilConverter *UInt8_To_Int8; */
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0, /* PaUtilConverter *Copy_8_To_8; */
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0, /* PaUtilConverter *Copy_16_To_16; */
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0, /* PaUtilConverter *Copy_24_To_24; */
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0 /* PaUtilConverter *Copy_32_To_32; */
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};
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/* -------------------------------------------------------------------------- */
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#else /* PA_NO_STANDARD_CONVERTERS is not defined */
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/* -------------------------------------------------------------------------- */
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#define PA_CLIP_( val, min, max )\
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{ val = ((val) < (min)) ? (min) : (((val) > (max)) ? (max) : (val)); }
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static const float const_1_div_128_ = 1.0f / 128.0f; /* 8 bit multiplier */
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static const float const_1_div_32768_ = 1.0f / 32768.f; /* 16 bit multiplier */
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static const double const_1_div_2147483648_ = 1.0 / 2147483648.0; /* 32 bit multiplier */
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/* -------------------------------------------------------------------------- */
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static void Float32_To_Int32(
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void *destinationBuffer, signed int destinationStride,
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void *sourceBuffer, signed int sourceStride,
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unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
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{
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float *src = (float*)sourceBuffer;
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PaInt32 *dest = (PaInt32*)destinationBuffer;
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(void)ditherGenerator; /* unused parameter */
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while( count-- )
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{
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/* REVIEW */
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#ifdef PA_USE_C99_LRINTF
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float scaled = *src * 0x7FFFFFFF;
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*dest = lrintf(scaled-0.5f);
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#else
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double scaled = *src * 0x7FFFFFFF;
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*dest = (PaInt32) scaled;
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#endif
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src += sourceStride;
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dest += destinationStride;
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}
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}
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/* -------------------------------------------------------------------------- */
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static void Float32_To_Int32_Dither(
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void *destinationBuffer, signed int destinationStride,
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void *sourceBuffer, signed int sourceStride,
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unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
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{
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float *src = (float*)sourceBuffer;
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PaInt32 *dest = (PaInt32*)destinationBuffer;
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while( count-- )
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{
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/* REVIEW */
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#ifdef PA_USE_C99_LRINTF
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float dither = PaUtil_GenerateFloatTriangularDither( ditherGenerator );
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/* use smaller scaler to prevent overflow when we add the dither */
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float dithered = ((float)*src * (2147483646.0f)) + dither;
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*dest = lrintf(dithered - 0.5f);
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#else
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double dither = PaUtil_GenerateFloatTriangularDither( ditherGenerator );
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/* use smaller scaler to prevent overflow when we add the dither */
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double dithered = ((double)*src * (2147483646.0)) + dither;
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*dest = (PaInt32) dithered;
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#endif
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src += sourceStride;
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dest += destinationStride;
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}
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}
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/* -------------------------------------------------------------------------- */
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static void Float32_To_Int32_Clip(
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void *destinationBuffer, signed int destinationStride,
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void *sourceBuffer, signed int sourceStride,
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unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
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{
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float *src = (float*)sourceBuffer;
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PaInt32 *dest = (PaInt32*)destinationBuffer;
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(void) ditherGenerator; /* unused parameter */
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while( count-- )
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{
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/* REVIEW */
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#ifdef PA_USE_C99_LRINTF
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float scaled = *src * 0x7FFFFFFF;
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PA_CLIP_( scaled, -2147483648.f, 2147483647.f );
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*dest = lrintf(scaled-0.5f);
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#else
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double scaled = *src * 0x7FFFFFFF;
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PA_CLIP_( scaled, -2147483648., 2147483647. );
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*dest = (PaInt32) scaled;
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#endif
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src += sourceStride;
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dest += destinationStride;
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}
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}
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/* -------------------------------------------------------------------------- */
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static void Float32_To_Int32_DitherClip(
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void *destinationBuffer, signed int destinationStride,
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void *sourceBuffer, signed int sourceStride,
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unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
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{
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|
float *src = (float*)sourceBuffer;
|
|
PaInt32 *dest = (PaInt32*)destinationBuffer;
|
|
|
|
while( count-- )
|
|
{
|
|
/* REVIEW */
|
|
#ifdef PA_USE_C99_LRINTF
|
|
float dither = PaUtil_GenerateFloatTriangularDither( ditherGenerator );
|
|
/* use smaller scaler to prevent overflow when we add the dither */
|
|
float dithered = ((float)*src * (2147483646.0f)) + dither;
|
|
PA_CLIP_( dithered, -2147483648.f, 2147483647.f );
|
|
*dest = lrintf(dithered-0.5f);
|
|
#else
|
|
double dither = PaUtil_GenerateFloatTriangularDither( ditherGenerator );
|
|
/* use smaller scaler to prevent overflow when we add the dither */
|
|
double dithered = ((double)*src * (2147483646.0)) + dither;
|
|
PA_CLIP_( dithered, -2147483648., 2147483647. );
|
|
*dest = (PaInt32) dithered;
|
|
#endif
|
|
|
|
src += sourceStride;
|
|
dest += destinationStride;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Float32_To_Int24(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
float *src = (float*)sourceBuffer;
|
|
unsigned char *dest = (unsigned char*)destinationBuffer;
|
|
PaInt32 temp;
|
|
|
|
(void) ditherGenerator; /* unused parameter */
|
|
|
|
while( count-- )
|
|
{
|
|
/* convert to 32 bit and drop the low 8 bits */
|
|
double scaled = *src * 0x7FFFFFFF;
|
|
temp = (PaInt32) scaled;
|
|
|
|
#if defined(PA_LITTLE_ENDIAN)
|
|
dest[0] = (unsigned char)(temp >> 8);
|
|
dest[1] = (unsigned char)(temp >> 16);
|
|
dest[2] = (unsigned char)(temp >> 24);
|
|
#elif defined(PA_BIG_ENDIAN)
|
|
dest[0] = (unsigned char)(temp >> 24);
|
|
dest[1] = (unsigned char)(temp >> 16);
|
|
dest[2] = (unsigned char)(temp >> 8);
|
|
#endif
|
|
|
|
src += sourceStride;
|
|
dest += destinationStride * 3;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Float32_To_Int24_Dither(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
float *src = (float*)sourceBuffer;
|
|
unsigned char *dest = (unsigned char*)destinationBuffer;
|
|
PaInt32 temp;
|
|
|
|
while( count-- )
|
|
{
|
|
/* convert to 32 bit and drop the low 8 bits */
|
|
|
|
double dither = PaUtil_GenerateFloatTriangularDither( ditherGenerator );
|
|
/* use smaller scaler to prevent overflow when we add the dither */
|
|
double dithered = ((double)*src * (2147483646.0)) + dither;
|
|
|
|
temp = (PaInt32) dithered;
|
|
|
|
#if defined(PA_LITTLE_ENDIAN)
|
|
dest[0] = (unsigned char)(temp >> 8);
|
|
dest[1] = (unsigned char)(temp >> 16);
|
|
dest[2] = (unsigned char)(temp >> 24);
|
|
#elif defined(PA_BIG_ENDIAN)
|
|
dest[0] = (unsigned char)(temp >> 24);
|
|
dest[1] = (unsigned char)(temp >> 16);
|
|
dest[2] = (unsigned char)(temp >> 8);
|
|
#endif
|
|
|
|
src += sourceStride;
|
|
dest += destinationStride * 3;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Float32_To_Int24_Clip(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
float *src = (float*)sourceBuffer;
|
|
unsigned char *dest = (unsigned char*)destinationBuffer;
|
|
PaInt32 temp;
|
|
|
|
(void) ditherGenerator; /* unused parameter */
|
|
|
|
while( count-- )
|
|
{
|
|
/* convert to 32 bit and drop the low 8 bits */
|
|
double scaled = *src * 0x7FFFFFFF;
|
|
PA_CLIP_( scaled, -2147483648., 2147483647. );
|
|
temp = (PaInt32) scaled;
|
|
|
|
#if defined(PA_LITTLE_ENDIAN)
|
|
dest[0] = (unsigned char)(temp >> 8);
|
|
dest[1] = (unsigned char)(temp >> 16);
|
|
dest[2] = (unsigned char)(temp >> 24);
|
|
#elif defined(PA_BIG_ENDIAN)
|
|
dest[0] = (unsigned char)(temp >> 24);
|
|
dest[1] = (unsigned char)(temp >> 16);
|
|
dest[2] = (unsigned char)(temp >> 8);
|
|
#endif
|
|
|
|
src += sourceStride;
|
|
dest += destinationStride * 3;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Float32_To_Int24_DitherClip(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
float *src = (float*)sourceBuffer;
|
|
unsigned char *dest = (unsigned char*)destinationBuffer;
|
|
PaInt32 temp;
|
|
|
|
while( count-- )
|
|
{
|
|
/* convert to 32 bit and drop the low 8 bits */
|
|
|
|
double dither = PaUtil_GenerateFloatTriangularDither( ditherGenerator );
|
|
/* use smaller scaler to prevent overflow when we add the dither */
|
|
double dithered = ((double)*src * (2147483646.0)) + dither;
|
|
PA_CLIP_( dithered, -2147483648., 2147483647. );
|
|
|
|
temp = (PaInt32) dithered;
|
|
|
|
#if defined(PA_LITTLE_ENDIAN)
|
|
dest[0] = (unsigned char)(temp >> 8);
|
|
dest[1] = (unsigned char)(temp >> 16);
|
|
dest[2] = (unsigned char)(temp >> 24);
|
|
#elif defined(PA_BIG_ENDIAN)
|
|
dest[0] = (unsigned char)(temp >> 24);
|
|
dest[1] = (unsigned char)(temp >> 16);
|
|
dest[2] = (unsigned char)(temp >> 8);
|
|
#endif
|
|
|
|
src += sourceStride;
|
|
dest += destinationStride * 3;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Float32_To_Int16(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
float *src = (float*)sourceBuffer;
|
|
PaInt16 *dest = (PaInt16*)destinationBuffer;
|
|
(void)ditherGenerator; /* unused parameter */
|
|
|
|
while( count-- )
|
|
{
|
|
#ifdef PA_USE_C99_LRINTF
|
|
float tempf = (*src * (32767.0f)) ;
|
|
*dest = lrintf(tempf-0.5f);
|
|
#else
|
|
short samp = (short) (*src * (32767.0f));
|
|
*dest = samp;
|
|
#endif
|
|
|
|
src += sourceStride;
|
|
dest += destinationStride;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Float32_To_Int16_Dither(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
float *src = (float*)sourceBuffer;
|
|
PaInt16 *dest = (PaInt16*)destinationBuffer;
|
|
|
|
while( count-- )
|
|
{
|
|
|
|
float dither = PaUtil_GenerateFloatTriangularDither( ditherGenerator );
|
|
/* use smaller scaler to prevent overflow when we add the dither */
|
|
float dithered = (*src * (32766.0f)) + dither;
|
|
|
|
#ifdef PA_USE_C99_LRINTF
|
|
*dest = lrintf(dithered-0.5f);
|
|
#else
|
|
*dest = (PaInt16) dithered;
|
|
#endif
|
|
|
|
src += sourceStride;
|
|
dest += destinationStride;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Float32_To_Int16_Clip(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
float *src = (float*)sourceBuffer;
|
|
PaInt16 *dest = (PaInt16*)destinationBuffer;
|
|
(void)ditherGenerator; /* unused parameter */
|
|
|
|
while( count-- )
|
|
{
|
|
#ifdef PA_USE_C99_LRINTF
|
|
long samp = lrintf((*src * (32767.0f)) -0.5f);
|
|
#else
|
|
long samp = (PaInt32) (*src * (32767.0f));
|
|
#endif
|
|
PA_CLIP_( samp, -0x8000, 0x7FFF );
|
|
*dest = (PaInt16) samp;
|
|
|
|
src += sourceStride;
|
|
dest += destinationStride;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Float32_To_Int16_DitherClip(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
float *src = (float*)sourceBuffer;
|
|
PaInt16 *dest = (PaInt16*)destinationBuffer;
|
|
(void)ditherGenerator; /* unused parameter */
|
|
|
|
while( count-- )
|
|
{
|
|
|
|
float dither = PaUtil_GenerateFloatTriangularDither( ditherGenerator );
|
|
/* use smaller scaler to prevent overflow when we add the dither */
|
|
float dithered = (*src * (32766.0f)) + dither;
|
|
PaInt32 samp = (PaInt32) dithered;
|
|
PA_CLIP_( samp, -0x8000, 0x7FFF );
|
|
#ifdef PA_USE_C99_LRINTF
|
|
*dest = lrintf(samp-0.5f);
|
|
#else
|
|
*dest = (PaInt16) samp;
|
|
#endif
|
|
|
|
src += sourceStride;
|
|
dest += destinationStride;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Float32_To_Int8(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
float *src = (float*)sourceBuffer;
|
|
signed char *dest = (signed char*)destinationBuffer;
|
|
(void)ditherGenerator; /* unused parameter */
|
|
|
|
while( count-- )
|
|
{
|
|
signed char samp = (signed char) (*src * (127.0f));
|
|
*dest = samp;
|
|
|
|
src += sourceStride;
|
|
dest += destinationStride;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Float32_To_Int8_Dither(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
float *src = (float*)sourceBuffer;
|
|
signed char *dest = (signed char*)destinationBuffer;
|
|
(void)ditherGenerator; /* unused parameter */
|
|
|
|
while( count-- )
|
|
{
|
|
float dither = PaUtil_GenerateFloatTriangularDither( ditherGenerator );
|
|
/* use smaller scaler to prevent overflow when we add the dither */
|
|
float dithered = (*src * (126.0f)) + dither;
|
|
PaInt32 samp = (PaInt32) dithered;
|
|
*dest = (signed char) samp;
|
|
|
|
src += sourceStride;
|
|
dest += destinationStride;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Float32_To_Int8_Clip(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
float *src = (float*)sourceBuffer;
|
|
signed char *dest = (signed char*)destinationBuffer;
|
|
(void)ditherGenerator; /* unused parameter */
|
|
|
|
while( count-- )
|
|
{
|
|
PaInt32 samp = (PaInt32)(*src * (127.0f));
|
|
PA_CLIP_( samp, -0x80, 0x7F );
|
|
*dest = (signed char) samp;
|
|
|
|
src += sourceStride;
|
|
dest += destinationStride;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Float32_To_Int8_DitherClip(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
float *src = (float*)sourceBuffer;
|
|
signed char *dest = (signed char*)destinationBuffer;
|
|
(void)ditherGenerator; /* unused parameter */
|
|
|
|
while( count-- )
|
|
{
|
|
float dither = PaUtil_GenerateFloatTriangularDither( ditherGenerator );
|
|
/* use smaller scaler to prevent overflow when we add the dither */
|
|
float dithered = (*src * (126.0f)) + dither;
|
|
PaInt32 samp = (PaInt32) dithered;
|
|
PA_CLIP_( samp, -0x80, 0x7F );
|
|
*dest = (signed char) samp;
|
|
|
|
src += sourceStride;
|
|
dest += destinationStride;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Float32_To_UInt8(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
float *src = (float*)sourceBuffer;
|
|
unsigned char *dest = (unsigned char*)destinationBuffer;
|
|
(void)ditherGenerator; /* unused parameter */
|
|
|
|
while( count-- )
|
|
{
|
|
unsigned char samp = (unsigned char)(128 + ((unsigned char) (*src * (127.0f))));
|
|
*dest = samp;
|
|
|
|
src += sourceStride;
|
|
dest += destinationStride;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Float32_To_UInt8_Dither(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
float *src = (float*)sourceBuffer;
|
|
unsigned char *dest = (unsigned char*)destinationBuffer;
|
|
(void)ditherGenerator; /* unused parameter */
|
|
|
|
while( count-- )
|
|
{
|
|
/* IMPLEMENT ME */
|
|
|
|
src += sourceStride;
|
|
dest += destinationStride;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Float32_To_UInt8_Clip(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
float *src = (float*)sourceBuffer;
|
|
unsigned char *dest = (unsigned char*)destinationBuffer;
|
|
(void)ditherGenerator; /* unused parameter */
|
|
|
|
while( count-- )
|
|
{
|
|
/* IMPLEMENT ME */
|
|
|
|
src += sourceStride;
|
|
dest += destinationStride;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Float32_To_UInt8_DitherClip(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
float *src = (float*)sourceBuffer;
|
|
unsigned char *dest = (unsigned char*)destinationBuffer;
|
|
(void)ditherGenerator; /* unused parameter */
|
|
|
|
while( count-- )
|
|
{
|
|
/* IMPLEMENT ME */
|
|
|
|
src += sourceStride;
|
|
dest += destinationStride;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Int32_To_Float32(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
PaInt32 *src = (PaInt32*)sourceBuffer;
|
|
float *dest = (float*)destinationBuffer;
|
|
(void)ditherGenerator; /* unused parameter */
|
|
|
|
while( count-- )
|
|
{
|
|
*dest = (float) ((double)*src * const_1_div_2147483648_);
|
|
|
|
src += sourceStride;
|
|
dest += destinationStride;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Int32_To_Int24(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
PaInt32 *src = (PaInt32*)sourceBuffer;
|
|
unsigned char *dest = (unsigned char*)destinationBuffer;
|
|
(void) ditherGenerator; /* unused parameter */
|
|
|
|
while( count-- )
|
|
{
|
|
/* REVIEW */
|
|
#if defined(PA_LITTLE_ENDIAN)
|
|
dest[0] = (unsigned char)(*src >> 8);
|
|
dest[1] = (unsigned char)(*src >> 16);
|
|
dest[2] = (unsigned char)(*src >> 24);
|
|
#elif defined(PA_BIG_ENDIAN)
|
|
dest[0] = (unsigned char)(*src >> 24);
|
|
dest[1] = (unsigned char)(*src >> 16);
|
|
dest[2] = (unsigned char)(*src >> 8);
|
|
#endif
|
|
src += sourceStride;
|
|
dest += destinationStride * 3;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Int32_To_Int24_Dither(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
(void) destinationBuffer; /* unused parameters */
|
|
(void) destinationStride; /* unused parameters */
|
|
(void) sourceBuffer; /* unused parameters */
|
|
(void) sourceStride; /* unused parameters */
|
|
(void) count; /* unused parameters */
|
|
(void) ditherGenerator; /* unused parameters */
|
|
/* IMPLEMENT ME */
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Int32_To_Int16(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
PaInt32 *src = (PaInt32*)sourceBuffer;
|
|
PaInt16 *dest = (PaInt16*)destinationBuffer;
|
|
(void)ditherGenerator; /* unused parameter */
|
|
|
|
while( count-- )
|
|
{
|
|
*dest = (PaInt16) ((*src) >> 16);
|
|
|
|
src += sourceStride;
|
|
dest += destinationStride;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Int32_To_Int16_Dither(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
PaInt32 *src = (PaInt32*)sourceBuffer;
|
|
PaInt16 *dest = (PaInt16*)destinationBuffer;
|
|
PaInt32 dither;
|
|
|
|
while( count-- )
|
|
{
|
|
/* REVIEW */
|
|
dither = PaUtil_Generate16BitTriangularDither( ditherGenerator );
|
|
*dest = (PaInt16) ((((*src)>>1) + dither) >> 15);
|
|
|
|
src += sourceStride;
|
|
dest += destinationStride;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Int32_To_Int8(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
PaInt32 *src = (PaInt32*)sourceBuffer;
|
|
signed char *dest = (signed char*)destinationBuffer;
|
|
(void)ditherGenerator; /* unused parameter */
|
|
|
|
while( count-- )
|
|
{
|
|
*dest = (signed char) ((*src) >> 24);
|
|
|
|
src += sourceStride;
|
|
dest += destinationStride;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Int32_To_Int8_Dither(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
PaInt32 *src = (PaInt32*)sourceBuffer;
|
|
signed char *dest = (signed char*)destinationBuffer;
|
|
PaInt32 dither;
|
|
|
|
while( count-- )
|
|
{
|
|
/* REVIEW */
|
|
dither = PaUtil_Generate16BitTriangularDither( ditherGenerator );
|
|
*dest = (signed char) ((((*src)>>1) + dither) >> 23);
|
|
|
|
src += sourceStride;
|
|
dest += destinationStride;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Int32_To_UInt8(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
PaInt32 *src = (PaInt32*)sourceBuffer;
|
|
unsigned char *dest = (unsigned char*)destinationBuffer;
|
|
(void)ditherGenerator; /* unused parameter */
|
|
|
|
while( count-- )
|
|
{
|
|
(*dest) = (unsigned char)(((*src) >> 24) + 128);
|
|
|
|
src += sourceStride;
|
|
dest += destinationStride;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Int32_To_UInt8_Dither(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
PaInt32 *src = (PaInt32*)sourceBuffer;
|
|
unsigned char *dest = (unsigned char*)destinationBuffer;
|
|
(void)ditherGenerator; /* unused parameter */
|
|
|
|
while( count-- )
|
|
{
|
|
/* IMPLEMENT ME */
|
|
|
|
src += sourceStride;
|
|
dest += destinationStride;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Int24_To_Float32(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
unsigned char *src = (unsigned char*)sourceBuffer;
|
|
float *dest = (float*)destinationBuffer;
|
|
PaInt32 temp;
|
|
|
|
(void) ditherGenerator; /* unused parameter */
|
|
|
|
while( count-- )
|
|
{
|
|
|
|
#if defined(PA_LITTLE_ENDIAN)
|
|
temp = (((long)src[0]) << 8);
|
|
temp = temp | (((long)src[1]) << 16);
|
|
temp = temp | (((long)src[2]) << 24);
|
|
#elif defined(PA_BIG_ENDIAN)
|
|
temp = (((long)src[0]) << 24);
|
|
temp = temp | (((long)src[1]) << 16);
|
|
temp = temp | (((long)src[2]) << 8);
|
|
#endif
|
|
|
|
*dest = (float) ((double)temp * const_1_div_2147483648_);
|
|
|
|
src += sourceStride * 3;
|
|
dest += destinationStride;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Int24_To_Int32(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
unsigned char *src = (unsigned char*)sourceBuffer;
|
|
PaInt32 *dest = (PaInt32*) destinationBuffer;
|
|
PaInt32 temp;
|
|
|
|
(void) ditherGenerator; /* unused parameter */
|
|
|
|
while( count-- )
|
|
{
|
|
|
|
#if defined(PA_LITTLE_ENDIAN)
|
|
temp = (((long)src[0]) << 8);
|
|
temp = temp | (((long)src[1]) << 16);
|
|
temp = temp | (((long)src[2]) << 24);
|
|
#elif defined(PA_BIG_ENDIAN)
|
|
temp = (((long)src[0]) << 24);
|
|
temp = temp | (((long)src[1]) << 16);
|
|
temp = temp | (((long)src[2]) << 8);
|
|
#endif
|
|
|
|
*dest = temp;
|
|
|
|
src += sourceStride * 3;
|
|
dest += destinationStride;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Int24_To_Int16(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
unsigned char *src = (unsigned char*)sourceBuffer;
|
|
PaInt16 *dest = (PaInt16*)destinationBuffer;
|
|
|
|
PaInt16 temp;
|
|
|
|
(void) ditherGenerator; /* unused parameter */
|
|
|
|
while( count-- )
|
|
{
|
|
|
|
#if defined(PA_LITTLE_ENDIAN)
|
|
/* src[0] is discarded */
|
|
temp = (((PaInt16)src[1]));
|
|
temp = temp | (PaInt16)(((PaInt16)src[2]) << 8);
|
|
#elif defined(PA_BIG_ENDIAN)
|
|
/* src[2] is discarded */
|
|
temp = (PaInt16)(((PaInt16)src[0]) << 8);
|
|
temp = temp | (((PaInt16)src[1]));
|
|
#endif
|
|
|
|
*dest = temp;
|
|
|
|
src += sourceStride * 3;
|
|
dest += destinationStride;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Int24_To_Int16_Dither(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
(void) destinationBuffer; /* unused parameters */
|
|
(void) destinationStride; /* unused parameters */
|
|
(void) sourceBuffer; /* unused parameters */
|
|
(void) sourceStride; /* unused parameters */
|
|
(void) count; /* unused parameters */
|
|
(void) ditherGenerator; /* unused parameters */
|
|
/* IMPLEMENT ME */
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Int24_To_Int8(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
unsigned char *src = (unsigned char*)sourceBuffer;
|
|
signed char *dest = (signed char*)destinationBuffer;
|
|
|
|
(void) ditherGenerator; /* unused parameter */
|
|
|
|
while( count-- )
|
|
{
|
|
|
|
#if defined(PA_LITTLE_ENDIAN)
|
|
/* src[0] is discarded */
|
|
/* src[1] is discarded */
|
|
*dest = src[2];
|
|
#elif defined(PA_BIG_ENDIAN)
|
|
/* src[2] is discarded */
|
|
/* src[1] is discarded */
|
|
*dest = src[0];
|
|
#endif
|
|
|
|
src += sourceStride * 3;
|
|
dest += destinationStride;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Int24_To_Int8_Dither(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
(void) destinationBuffer; /* unused parameters */
|
|
(void) destinationStride; /* unused parameters */
|
|
(void) sourceBuffer; /* unused parameters */
|
|
(void) sourceStride; /* unused parameters */
|
|
(void) count; /* unused parameters */
|
|
(void) ditherGenerator; /* unused parameters */
|
|
/* IMPLEMENT ME */
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Int24_To_UInt8(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
unsigned char *src = (unsigned char*)sourceBuffer;
|
|
unsigned char *dest = (unsigned char*)destinationBuffer;
|
|
|
|
(void) ditherGenerator; /* unused parameter */
|
|
|
|
while( count-- )
|
|
{
|
|
|
|
#if defined(PA_LITTLE_ENDIAN)
|
|
/* src[0] is discarded */
|
|
/* src[1] is discarded */
|
|
*dest = (unsigned char)(src[2] + 128);
|
|
#elif defined(PA_BIG_ENDIAN)
|
|
*dest = (unsigned char)(src[0] + 128);
|
|
/* src[1] is discarded */
|
|
/* src[2] is discarded */
|
|
#endif
|
|
|
|
src += sourceStride * 3;
|
|
dest += destinationStride;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Int24_To_UInt8_Dither(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
(void) destinationBuffer; /* unused parameters */
|
|
(void) destinationStride; /* unused parameters */
|
|
(void) sourceBuffer; /* unused parameters */
|
|
(void) sourceStride; /* unused parameters */
|
|
(void) count; /* unused parameters */
|
|
(void) ditherGenerator; /* unused parameters */
|
|
/* IMPLEMENT ME */
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Int16_To_Float32(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
PaInt16 *src = (PaInt16*)sourceBuffer;
|
|
float *dest = (float*)destinationBuffer;
|
|
(void)ditherGenerator; /* unused parameter */
|
|
|
|
while( count-- )
|
|
{
|
|
float samp = *src * const_1_div_32768_; /* FIXME: i'm concerned about this being asymetrical with float->int16 -rb */
|
|
*dest = samp;
|
|
|
|
src += sourceStride;
|
|
dest += destinationStride;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Int16_To_Int32(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
PaInt16 *src = (PaInt16*)sourceBuffer;
|
|
PaInt32 *dest = (PaInt32*)destinationBuffer;
|
|
(void)ditherGenerator; /* unused parameter */
|
|
|
|
while( count-- )
|
|
{
|
|
/* REVIEW: we should consider something like
|
|
(*src << 16) | (*src & 0xFFFF)
|
|
*/
|
|
|
|
*dest = *src << 16;
|
|
|
|
src += sourceStride;
|
|
dest += destinationStride;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Int16_To_Int24(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
PaInt16 *src = (PaInt16*) sourceBuffer;
|
|
unsigned char *dest = (unsigned char*)destinationBuffer;
|
|
PaInt16 temp;
|
|
|
|
(void) ditherGenerator; /* unused parameter */
|
|
|
|
while( count-- )
|
|
{
|
|
temp = *src;
|
|
|
|
#if defined(PA_LITTLE_ENDIAN)
|
|
dest[0] = 0;
|
|
dest[1] = (unsigned char)(temp);
|
|
dest[2] = (unsigned char)(temp >> 8);
|
|
#elif defined(PA_BIG_ENDIAN)
|
|
dest[0] = (unsigned char)(temp >> 8);
|
|
dest[1] = (unsigned char)(temp);
|
|
dest[2] = 0;
|
|
#endif
|
|
|
|
src += sourceStride;
|
|
dest += destinationStride * 3;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Int16_To_Int8(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
PaInt16 *src = (PaInt16*)sourceBuffer;
|
|
signed char *dest = (signed char*)destinationBuffer;
|
|
(void)ditherGenerator; /* unused parameter */
|
|
|
|
while( count-- )
|
|
{
|
|
(*dest) = (signed char)((*src) >> 8);
|
|
|
|
src += sourceStride;
|
|
dest += destinationStride;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Int16_To_Int8_Dither(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
PaInt16 *src = (PaInt16*)sourceBuffer;
|
|
signed char *dest = (signed char*)destinationBuffer;
|
|
(void)ditherGenerator; /* unused parameter */
|
|
|
|
while( count-- )
|
|
{
|
|
/* IMPLEMENT ME */
|
|
|
|
src += sourceStride;
|
|
dest += destinationStride;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Int16_To_UInt8(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
PaInt16 *src = (PaInt16*)sourceBuffer;
|
|
unsigned char *dest = (unsigned char*)destinationBuffer;
|
|
(void)ditherGenerator; /* unused parameter */
|
|
|
|
while( count-- )
|
|
{
|
|
(*dest) = (unsigned char)(((*src) >> 8) + 128);
|
|
|
|
src += sourceStride;
|
|
dest += destinationStride;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Int16_To_UInt8_Dither(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
PaInt16 *src = (PaInt16*)sourceBuffer;
|
|
unsigned char *dest = (unsigned char*)destinationBuffer;
|
|
(void)ditherGenerator; /* unused parameter */
|
|
|
|
while( count-- )
|
|
{
|
|
/* IMPLEMENT ME */
|
|
|
|
src += sourceStride;
|
|
dest += destinationStride;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Int8_To_Float32(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
signed char *src = (signed char*)sourceBuffer;
|
|
float *dest = (float*)destinationBuffer;
|
|
(void)ditherGenerator; /* unused parameter */
|
|
|
|
while( count-- )
|
|
{
|
|
float samp = *src * const_1_div_128_;
|
|
*dest = samp;
|
|
|
|
src += sourceStride;
|
|
dest += destinationStride;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Int8_To_Int32(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
signed char *src = (signed char*)sourceBuffer;
|
|
PaInt32 *dest = (PaInt32*)destinationBuffer;
|
|
(void)ditherGenerator; /* unused parameter */
|
|
|
|
while( count-- )
|
|
{
|
|
(*dest) = (*src) << 24;
|
|
|
|
src += sourceStride;
|
|
dest += destinationStride;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Int8_To_Int24(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
signed char *src = (signed char*)sourceBuffer;
|
|
unsigned char *dest = (unsigned char*)destinationBuffer;
|
|
(void)ditherGenerator; /* unused parameter */
|
|
|
|
while( count-- )
|
|
{
|
|
|
|
#if defined(PA_LITTLE_ENDIAN)
|
|
dest[0] = 0;
|
|
dest[1] = 0;
|
|
dest[2] = (*src);
|
|
#elif defined(PA_BIG_ENDIAN)
|
|
dest[0] = (*src);
|
|
dest[1] = 0;
|
|
dest[2] = 0;
|
|
#endif
|
|
|
|
src += sourceStride;
|
|
dest += destinationStride * 3;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Int8_To_Int16(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
signed char *src = (signed char*)sourceBuffer;
|
|
PaInt16 *dest = (PaInt16*)destinationBuffer;
|
|
(void)ditherGenerator; /* unused parameter */
|
|
|
|
while( count-- )
|
|
{
|
|
(*dest) = (PaInt16)((*src) << 8);
|
|
|
|
src += sourceStride;
|
|
dest += destinationStride;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Int8_To_UInt8(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
signed char *src = (signed char*)sourceBuffer;
|
|
unsigned char *dest = (unsigned char*)destinationBuffer;
|
|
(void)ditherGenerator; /* unused parameter */
|
|
|
|
while( count-- )
|
|
{
|
|
(*dest) = (unsigned char)(*src + 128);
|
|
|
|
src += sourceStride;
|
|
dest += destinationStride;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void UInt8_To_Float32(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
unsigned char *src = (unsigned char*)sourceBuffer;
|
|
float *dest = (float*)destinationBuffer;
|
|
(void)ditherGenerator; /* unused parameter */
|
|
|
|
while( count-- )
|
|
{
|
|
float samp = (*src - 128) * const_1_div_128_;
|
|
*dest = samp;
|
|
|
|
src += sourceStride;
|
|
dest += destinationStride;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void UInt8_To_Int32(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
unsigned char *src = (unsigned char*)sourceBuffer;
|
|
PaInt32 *dest = (PaInt32*)destinationBuffer;
|
|
(void)ditherGenerator; /* unused parameter */
|
|
|
|
while( count-- )
|
|
{
|
|
(*dest) = (*src - 128) << 24;
|
|
|
|
src += sourceStride;
|
|
dest += destinationStride;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void UInt8_To_Int24(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
unsigned char *src = (unsigned char*)sourceBuffer;
|
|
unsigned char *dest = (unsigned char*)destinationBuffer;
|
|
(void) ditherGenerator; /* unused parameters */
|
|
|
|
while( count-- )
|
|
{
|
|
|
|
#if defined(PA_LITTLE_ENDIAN)
|
|
dest[0] = 0;
|
|
dest[1] = 0;
|
|
dest[2] = (unsigned char)(*src - 128);
|
|
#elif defined(PA_BIG_ENDIAN)
|
|
dest[0] = (unsigned char)(*src - 128);
|
|
dest[1] = 0;
|
|
dest[2] = 0;
|
|
#endif
|
|
|
|
src += sourceStride;
|
|
dest += destinationStride * 3;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void UInt8_To_Int16(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
unsigned char *src = (unsigned char*)sourceBuffer;
|
|
PaInt16 *dest = (PaInt16*)destinationBuffer;
|
|
(void)ditherGenerator; /* unused parameter */
|
|
|
|
while( count-- )
|
|
{
|
|
(*dest) = (PaInt16)((*src - 128) << 8);
|
|
|
|
src += sourceStride;
|
|
dest += destinationStride;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void UInt8_To_Int8(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
unsigned char *src = (unsigned char*)sourceBuffer;
|
|
signed char *dest = (signed char*)destinationBuffer;
|
|
(void)ditherGenerator; /* unused parameter */
|
|
|
|
while( count-- )
|
|
{
|
|
(*dest) = (signed char)(*src - 128);
|
|
|
|
src += sourceStride;
|
|
dest += destinationStride;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Copy_8_To_8(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
unsigned char *src = (unsigned char*)sourceBuffer;
|
|
unsigned char *dest = (unsigned char*)destinationBuffer;
|
|
|
|
(void) ditherGenerator; /* unused parameter */
|
|
|
|
while( count-- )
|
|
{
|
|
*dest = *src;
|
|
|
|
src += sourceStride;
|
|
dest += destinationStride;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Copy_16_To_16(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
PaUint16 *src = (PaUint16 *)sourceBuffer;
|
|
PaUint16 *dest = (PaUint16 *)destinationBuffer;
|
|
|
|
(void) ditherGenerator; /* unused parameter */
|
|
|
|
while( count-- )
|
|
{
|
|
*dest = *src;
|
|
|
|
src += sourceStride;
|
|
dest += destinationStride;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Copy_24_To_24(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
unsigned char *src = (unsigned char*)sourceBuffer;
|
|
unsigned char *dest = (unsigned char*)destinationBuffer;
|
|
|
|
(void) ditherGenerator; /* unused parameter */
|
|
|
|
while( count-- )
|
|
{
|
|
dest[0] = src[0];
|
|
dest[1] = src[1];
|
|
dest[2] = src[2];
|
|
|
|
src += sourceStride * 3;
|
|
dest += destinationStride * 3;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Copy_32_To_32(
|
|
void *destinationBuffer, signed int destinationStride,
|
|
void *sourceBuffer, signed int sourceStride,
|
|
unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator )
|
|
{
|
|
PaUint32 *dest = (PaUint32 *)destinationBuffer;
|
|
PaUint32 *src = (PaUint32 *)sourceBuffer;
|
|
|
|
(void) ditherGenerator; /* unused parameter */
|
|
|
|
while( count-- )
|
|
{
|
|
*dest = *src;
|
|
|
|
src += sourceStride;
|
|
dest += destinationStride;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
PaUtilConverterTable paConverters = {
|
|
Float32_To_Int32, /* PaUtilConverter *Float32_To_Int32; */
|
|
Float32_To_Int32_Dither, /* PaUtilConverter *Float32_To_Int32_Dither; */
|
|
Float32_To_Int32_Clip, /* PaUtilConverter *Float32_To_Int32_Clip; */
|
|
Float32_To_Int32_DitherClip, /* PaUtilConverter *Float32_To_Int32_DitherClip; */
|
|
|
|
Float32_To_Int24, /* PaUtilConverter *Float32_To_Int24; */
|
|
Float32_To_Int24_Dither, /* PaUtilConverter *Float32_To_Int24_Dither; */
|
|
Float32_To_Int24_Clip, /* PaUtilConverter *Float32_To_Int24_Clip; */
|
|
Float32_To_Int24_DitherClip, /* PaUtilConverter *Float32_To_Int24_DitherClip; */
|
|
|
|
Float32_To_Int16, /* PaUtilConverter *Float32_To_Int16; */
|
|
Float32_To_Int16_Dither, /* PaUtilConverter *Float32_To_Int16_Dither; */
|
|
Float32_To_Int16_Clip, /* PaUtilConverter *Float32_To_Int16_Clip; */
|
|
Float32_To_Int16_DitherClip, /* PaUtilConverter *Float32_To_Int16_DitherClip; */
|
|
|
|
Float32_To_Int8, /* PaUtilConverter *Float32_To_Int8; */
|
|
Float32_To_Int8_Dither, /* PaUtilConverter *Float32_To_Int8_Dither; */
|
|
Float32_To_Int8_Clip, /* PaUtilConverter *Float32_To_Int8_Clip; */
|
|
Float32_To_Int8_DitherClip, /* PaUtilConverter *Float32_To_Int8_DitherClip; */
|
|
|
|
Float32_To_UInt8, /* PaUtilConverter *Float32_To_UInt8; */
|
|
Float32_To_UInt8_Dither, /* PaUtilConverter *Float32_To_UInt8_Dither; */
|
|
Float32_To_UInt8_Clip, /* PaUtilConverter *Float32_To_UInt8_Clip; */
|
|
Float32_To_UInt8_DitherClip, /* PaUtilConverter *Float32_To_UInt8_DitherClip; */
|
|
|
|
Int32_To_Float32, /* PaUtilConverter *Int32_To_Float32; */
|
|
Int32_To_Int24, /* PaUtilConverter *Int32_To_Int24; */
|
|
Int32_To_Int24_Dither, /* PaUtilConverter *Int32_To_Int24_Dither; */
|
|
Int32_To_Int16, /* PaUtilConverter *Int32_To_Int16; */
|
|
Int32_To_Int16_Dither, /* PaUtilConverter *Int32_To_Int16_Dither; */
|
|
Int32_To_Int8, /* PaUtilConverter *Int32_To_Int8; */
|
|
Int32_To_Int8_Dither, /* PaUtilConverter *Int32_To_Int8_Dither; */
|
|
Int32_To_UInt8, /* PaUtilConverter *Int32_To_UInt8; */
|
|
Int32_To_UInt8_Dither, /* PaUtilConverter *Int32_To_UInt8_Dither; */
|
|
|
|
Int24_To_Float32, /* PaUtilConverter *Int24_To_Float32; */
|
|
Int24_To_Int32, /* PaUtilConverter *Int24_To_Int32; */
|
|
Int24_To_Int16, /* PaUtilConverter *Int24_To_Int16; */
|
|
Int24_To_Int16_Dither, /* PaUtilConverter *Int24_To_Int16_Dither; */
|
|
Int24_To_Int8, /* PaUtilConverter *Int24_To_Int8; */
|
|
Int24_To_Int8_Dither, /* PaUtilConverter *Int24_To_Int8_Dither; */
|
|
Int24_To_UInt8, /* PaUtilConverter *Int24_To_UInt8; */
|
|
Int24_To_UInt8_Dither, /* PaUtilConverter *Int24_To_UInt8_Dither; */
|
|
|
|
Int16_To_Float32, /* PaUtilConverter *Int16_To_Float32; */
|
|
Int16_To_Int32, /* PaUtilConverter *Int16_To_Int32; */
|
|
Int16_To_Int24, /* PaUtilConverter *Int16_To_Int24; */
|
|
Int16_To_Int8, /* PaUtilConverter *Int16_To_Int8; */
|
|
Int16_To_Int8_Dither, /* PaUtilConverter *Int16_To_Int8_Dither; */
|
|
Int16_To_UInt8, /* PaUtilConverter *Int16_To_UInt8; */
|
|
Int16_To_UInt8_Dither, /* PaUtilConverter *Int16_To_UInt8_Dither; */
|
|
|
|
Int8_To_Float32, /* PaUtilConverter *Int8_To_Float32; */
|
|
Int8_To_Int32, /* PaUtilConverter *Int8_To_Int32; */
|
|
Int8_To_Int24, /* PaUtilConverter *Int8_To_Int24 */
|
|
Int8_To_Int16, /* PaUtilConverter *Int8_To_Int16; */
|
|
Int8_To_UInt8, /* PaUtilConverter *Int8_To_UInt8; */
|
|
|
|
UInt8_To_Float32, /* PaUtilConverter *UInt8_To_Float32; */
|
|
UInt8_To_Int32, /* PaUtilConverter *UInt8_To_Int32; */
|
|
UInt8_To_Int24, /* PaUtilConverter *UInt8_To_Int24; */
|
|
UInt8_To_Int16, /* PaUtilConverter *UInt8_To_Int16; */
|
|
UInt8_To_Int8, /* PaUtilConverter *UInt8_To_Int8; */
|
|
|
|
Copy_8_To_8, /* PaUtilConverter *Copy_8_To_8; */
|
|
Copy_16_To_16, /* PaUtilConverter *Copy_16_To_16; */
|
|
Copy_24_To_24, /* PaUtilConverter *Copy_24_To_24; */
|
|
Copy_32_To_32 /* PaUtilConverter *Copy_32_To_32; */
|
|
};
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
#endif /* PA_NO_STANDARD_CONVERTERS */
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
PaUtilZeroer* PaUtil_SelectZeroer( PaSampleFormat destinationFormat )
|
|
{
|
|
switch( destinationFormat & ~paNonInterleaved ){
|
|
case paFloat32:
|
|
return paZeroers.Zero32;
|
|
case paInt32:
|
|
return paZeroers.Zero32;
|
|
case paInt24:
|
|
return paZeroers.Zero24;
|
|
case paInt16:
|
|
return paZeroers.Zero16;
|
|
case paInt8:
|
|
return paZeroers.Zero8;
|
|
case paUInt8:
|
|
return paZeroers.ZeroU8;
|
|
default: return 0;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
#ifdef PA_NO_STANDARD_ZEROERS
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
PaUtilZeroerTable paZeroers = {
|
|
0, /* PaUtilZeroer *ZeroU8; */
|
|
0, /* PaUtilZeroer *Zero8; */
|
|
0, /* PaUtilZeroer *Zero16; */
|
|
0, /* PaUtilZeroer *Zero24; */
|
|
0, /* PaUtilZeroer *Zero32; */
|
|
};
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
#else /* PA_NO_STANDARD_ZEROERS is not defined */
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void ZeroU8( void *destinationBuffer, signed int destinationStride,
|
|
unsigned int count )
|
|
{
|
|
unsigned char *dest = (unsigned char*)destinationBuffer;
|
|
|
|
while( count-- )
|
|
{
|
|
*dest = 128;
|
|
|
|
dest += destinationStride;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Zero8( void *destinationBuffer, signed int destinationStride,
|
|
unsigned int count )
|
|
{
|
|
unsigned char *dest = (unsigned char*)destinationBuffer;
|
|
|
|
while( count-- )
|
|
{
|
|
*dest = 0;
|
|
|
|
dest += destinationStride;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Zero16( void *destinationBuffer, signed int destinationStride,
|
|
unsigned int count )
|
|
{
|
|
PaUint16 *dest = (PaUint16 *)destinationBuffer;
|
|
|
|
while( count-- )
|
|
{
|
|
*dest = 0;
|
|
|
|
dest += destinationStride;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Zero24( void *destinationBuffer, signed int destinationStride,
|
|
unsigned int count )
|
|
{
|
|
unsigned char *dest = (unsigned char*)destinationBuffer;
|
|
|
|
while( count-- )
|
|
{
|
|
dest[0] = 0;
|
|
dest[1] = 0;
|
|
dest[2] = 0;
|
|
|
|
dest += destinationStride * 3;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static void Zero32( void *destinationBuffer, signed int destinationStride,
|
|
unsigned int count )
|
|
{
|
|
PaUint32 *dest = (PaUint32 *)destinationBuffer;
|
|
|
|
while( count-- )
|
|
{
|
|
*dest = 0;
|
|
|
|
dest += destinationStride;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
PaUtilZeroerTable paZeroers = {
|
|
ZeroU8, /* PaUtilZeroer *ZeroU8; */
|
|
Zero8, /* PaUtilZeroer *Zero8; */
|
|
Zero16, /* PaUtilZeroer *Zero16; */
|
|
Zero24, /* PaUtilZeroer *Zero24; */
|
|
Zero32, /* PaUtilZeroer *Zero32; */
|
|
};
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
#endif /* PA_NO_STANDARD_ZEROERS */
|