From 9c0e19a3be2288db79e2502e5fa450c3e20a668d Mon Sep 17 00:00:00 2001 From: Guenter Geiger Date: Fri, 9 May 2003 16:04:00 +0000 Subject: This commit was generated by cvs2svn to compensate for changes in r610, which included commits to RCS files with non-trunk default branches. svn path=/trunk/; revision=611 --- pd/portaudio/pa_common/pa_converters.c | 1653 ++++++++++++++++++++++++++++++++ 1 file changed, 1653 insertions(+) create mode 100644 pd/portaudio/pa_common/pa_converters.c (limited to 'pd/portaudio/pa_common/pa_converters.c') diff --git a/pd/portaudio/pa_common/pa_converters.c b/pd/portaudio/pa_common/pa_converters.c new file mode 100644 index 00000000..39e5e47f --- /dev/null +++ b/pd/portaudio/pa_common/pa_converters.c @@ -0,0 +1,1653 @@ +/* + * $Id: pa_converters.c,v 1.1.2.13 2003/02/28 01:49:59 rossbencina Exp $ + * Portable Audio I/O Library sample conversion mechanism + * + * Based on the Open Source API proposed by Ross Bencina + * Copyright (c) 1999-2002 Phil Burk, Ross Bencina + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files + * (the "Software"), to deal in the Software without restriction, + * including without limitation the rights to use, copy, modify, merge, + * publish, distribute, sublicense, and/or sell copies of the Software, + * and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * Any person wishing to distribute modifications to the Software is + * requested to send the modifications to the original developer so that + * they can be incorporated into the canonical version. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. + * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF + * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/** @file + + @todo implement the converters marked IMPLEMENT ME: Float32_To_UInt8_Dither, + Float32_To_UInt8_Clip, Float32_To_UInt8_DitherClip, Int32_To_Int24, + Int32_To_Int24_Dither, Int32_To_Int16, Int32_To_Int16_Dither, Int32_To_Int8, + Int32_To_Int8_Dither, Int32_To_UInt8, Int32_To_UInt8_Dither, Int24_To_Int32, + Int24_To_Int16, Int24_To_Int16_Dither, Int24_To_Int8, Int24_To_Int8_Dither, + Int24_To_UInt8, Int24_To_UInt8_Dither, Int16_To_Int32, Int16_To_Int24, + Int16_To_Int8, Int16_To_Int8_Dither, Int16_To_UInt8, Int16_To_UInt8_Dither, + Int8_To_Int32, Int8_To_Int24, Int8_To_Int16, Int8_To_UInt8, UInt8_To_Int32, + UInt8_To_Int24, UInt8_To_Int16, UInt8_To_Int8 + + @todo review the converters marked REVIEW: Float32_To_Int32, + Float32_To_Int32_Dither, Float32_To_Int32_Clip, Float32_To_Int32_DitherClip +*/ + + +#include "pa_converters.h" +#include "pa_dither.h" +#include "pa_endianness.h" + + +PaSampleFormat PaUtil_SelectClosestAvailableFormat( + PaSampleFormat availableFormats, PaSampleFormat format ) +{ + PaSampleFormat result; + + format &= ~paNonInterleaved; + availableFormats &= ~paNonInterleaved; + + if( (format & availableFormats) == 0 ) + { + /* NOTE: this code depends on the sample format constants being in + descending order of quality - ie best quality is 0 + FIXME: should write an assert which checks that all of the + known constants conform to that requirement. + */ + + if( format != 0x01 ) + { + /* scan for better formats */ + result = format; + do + { + result >>= 1; + } + while( (result & availableFormats) == 0 && result != 0 ); + } + else + { + result = 0; + } + + if( result == 0 ){ + /* scan for worse formats */ + result = format; + do + { + result <<= 1; + } + while( (result & availableFormats) == 0 && result != paCustomFormat ); + + if( (result & availableFormats) == 0 ) + result = paSampleFormatNotSupported; + } + + }else{ + result = format; + } + + return result; +} + +/* -------------------------------------------------------------------------- */ + +#define PA_SELECT_FORMAT_( format, float32, int32, int24, int16, int8, uint8 ) \ + switch( format & ~paNonInterleaved ){ \ + case paFloat32: \ + float32 \ + case paInt32: \ + int32 \ + case paInt24: \ + int24 \ + case paInt16: \ + int16 \ + case paInt8: \ + int8 \ + case paUInt8: \ + uint8 \ + default: return 0; \ + } + +/* -------------------------------------------------------------------------- */ + +#define PA_SELECT_CONVERTER_DITHER_CLIP_( flags, source, destination ) \ + if( flags & paClipOff ){ /* no clip */ \ + if( flags & paDitherOff ){ /* no dither */ \ + return paConverters. source ## _To_ ## destination; \ + }else{ /* dither */ \ + return paConverters. source ## _To_ ## destination ## _Dither; \ + } \ + }else{ /* clip */ \ + if( flags & paDitherOff ){ /* no dither */ \ + return paConverters. source ## _To_ ## destination ## _Clip; \ + }else{ /* dither */ \ + return paConverters. source ## _To_ ## destination ## _DitherClip;\ + } \ + } + +/* -------------------------------------------------------------------------- */ + +#define PA_SELECT_CONVERTER_DITHER_( flags, source, destination ) \ + if( flags & paDitherOff ){ /* no dither */ \ + return paConverters. source ## _To_ ## destination; \ + }else{ /* dither */ \ + return paConverters. source ## _To_ ## destination ## _Dither; \ + } + +/* -------------------------------------------------------------------------- */ + +#define PA_USE_CONVERTER_( source, destination )\ + return paConverters. source ## _To_ ## destination; + +/* -------------------------------------------------------------------------- */ + +#define PA_UNITY_CONVERSION_( wordlength )\ + return paConverters.Copy_ ## wordlength ## _To_ ## wordlength; + +/* -------------------------------------------------------------------------- */ + +PaUtilConverter* PaUtil_SelectConverter( PaSampleFormat sourceFormat, + PaSampleFormat destinationFormat, PaStreamFlags flags ) +{ + PA_SELECT_FORMAT_( sourceFormat, + /* paFloat32: */ + PA_SELECT_FORMAT_( destinationFormat, + /* paFloat32: */ PA_UNITY_CONVERSION_( 32 ), + /* paInt32: */ PA_SELECT_CONVERTER_DITHER_CLIP_( flags, Float32, Int32 ), + /* paInt24: */ PA_SELECT_CONVERTER_DITHER_CLIP_( flags, Float32, Int24 ), + /* paInt16: */ PA_SELECT_CONVERTER_DITHER_CLIP_( flags, Float32, Int16 ), + /* paInt8: */ PA_SELECT_CONVERTER_DITHER_CLIP_( flags, Float32, Int8 ), + /* paUInt8: */ PA_SELECT_CONVERTER_DITHER_CLIP_( flags, Float32, UInt8 ) + ), + /* paInt32: */ + PA_SELECT_FORMAT_( destinationFormat, + /* paFloat32: */ PA_USE_CONVERTER_( Int32, Float32 ), + /* paInt32: */ PA_UNITY_CONVERSION_( 32 ), + /* paInt24: */ PA_SELECT_CONVERTER_DITHER_( flags, Int32, Int24 ), + /* paInt16: */ PA_SELECT_CONVERTER_DITHER_( flags, Int32, Int16 ), + /* paInt8: */ PA_SELECT_CONVERTER_DITHER_( flags, Int32, Int8 ), + /* paUInt8: */ PA_SELECT_CONVERTER_DITHER_( flags, Int32, UInt8 ) + ), + /* paInt24: */ + PA_SELECT_FORMAT_( destinationFormat, + /* paFloat32: */ PA_USE_CONVERTER_( Int24, Float32 ), + /* paInt32: */ PA_USE_CONVERTER_( Int24, Int32 ), + /* paInt24: */ PA_UNITY_CONVERSION_( 24 ), + /* paInt16: */ PA_SELECT_CONVERTER_DITHER_( flags, Int24, Int16 ), + /* paInt8: */ PA_SELECT_CONVERTER_DITHER_( flags, Int24, Int8 ), + /* paUInt8: */ PA_SELECT_CONVERTER_DITHER_( flags, Int24, UInt8 ) + ), + /* paInt16: */ + PA_SELECT_FORMAT_( destinationFormat, + /* paFloat32: */ PA_USE_CONVERTER_( Int16, Float32 ), + /* paInt32: */ PA_USE_CONVERTER_( Int16, Int32 ), + /* paInt24: */ PA_USE_CONVERTER_( Int16, Int24 ), + /* paInt16: */ PA_UNITY_CONVERSION_( 16 ), + /* paInt8: */ PA_SELECT_CONVERTER_DITHER_( flags, Int16, Int8 ), + /* paUInt8: */ PA_SELECT_CONVERTER_DITHER_( flags, Int16, UInt8 ) + ), + /* paInt8: */ + PA_SELECT_FORMAT_( destinationFormat, + /* paFloat32: */ PA_USE_CONVERTER_( Int8, Float32 ), + /* paInt32: */ PA_USE_CONVERTER_( Int8, Int32 ), + /* paInt24: */ PA_USE_CONVERTER_( Int8, Int24 ), + /* paInt16: */ PA_USE_CONVERTER_( Int8, Int16 ), + /* paInt8: */ PA_UNITY_CONVERSION_( 8 ), + /* paUInt8: */ PA_USE_CONVERTER_( Int8, UInt8 ) + ), + /* paUInt8: */ + PA_SELECT_FORMAT_( destinationFormat, + /* paFloat32: */ PA_USE_CONVERTER_( UInt8, Float32 ), + /* paInt32: */ PA_USE_CONVERTER_( UInt8, Int32 ), + /* paInt24: */ PA_USE_CONVERTER_( UInt8, Int24 ), + /* paInt16: */ PA_USE_CONVERTER_( UInt8, Int16 ), + /* paInt8: */ PA_USE_CONVERTER_( UInt8, Int8 ), + /* paUInt8: */ PA_UNITY_CONVERSION_( 8 ) + ) + ) +} + +/* -------------------------------------------------------------------------- */ + +#ifdef PA_NO_STANDARD_CONVERTERS + +/* -------------------------------------------------------------------------- */ + +PaUtilConverterTable paConverters = { + 0, /* PaUtilConverter *Float32_To_Int32; */ + 0, /* PaUtilConverter *Float32_To_Int32_Dither; */ + 0, /* PaUtilConverter *Float32_To_Int32_Clip; */ + 0, /* PaUtilConverter *Float32_To_Int32_DitherClip; */ + + 0, /* PaUtilConverter *Float32_To_Int24; */ + 0, /* PaUtilConverter *Float32_To_Int24_Dither; */ + 0, /* PaUtilConverter *Float32_To_Int24_Clip; */ + 0, /* PaUtilConverter *Float32_To_Int24_DitherClip; */ + + 0, /* PaUtilConverter *Float32_To_Int16; */ + 0, /* PaUtilConverter *Float32_To_Int16_Dither; */ + 0, /* PaUtilConverter *Float32_To_Int16_Clip; */ + 0, /* PaUtilConverter *Float32_To_Int16_DitherClip; */ + + 0, /* PaUtilConverter *Float32_To_Int8; */ + 0, /* PaUtilConverter *Float32_To_Int8_Dither; */ + 0, /* PaUtilConverter *Float32_To_Int8_Clip; */ + 0, /* PaUtilConverter *Float32_To_Int8_DitherClip; */ + + 0, /* PaUtilConverter *Float32_To_UInt8; */ + 0, /* PaUtilConverter *Float32_To_UInt8_Dither; */ + 0, /* PaUtilConverter *Float32_To_UInt8_Clip; */ + 0, /* PaUtilConverter *Float32_To_UInt8_DitherClip; */ + + 0, /* PaUtilConverter *Int32_To_Float32; */ + 0, /* PaUtilConverter *Int32_To_Int24; */ + 0, /* PaUtilConverter *Int32_To_Int24_Dither; */ + 0, /* PaUtilConverter *Int32_To_Int16; */ + 0, /* PaUtilConverter *Int32_To_Int16_Dither; */ + 0, /* PaUtilConverter *Int32_To_Int8; */ + 0, /* PaUtilConverter *Int32_To_Int8_Dither; */ + 0, /* PaUtilConverter *Int32_To_UInt8; */ + 0, /* PaUtilConverter *Int32_To_UInt8_Dither; */ + + 0, /* PaUtilConverter *Int24_To_Float32; */ + 0, /* PaUtilConverter *Int24_To_Int32; */ + 0, /* PaUtilConverter *Int24_To_Int16; */ + 0, /* PaUtilConverter *Int24_To_Int16_Dither; */ + 0, /* PaUtilConverter *Int24_To_Int8; */ + 0, /* PaUtilConverter *Int24_To_Int8_Dither; */ + 0, /* PaUtilConverter *Int24_To_UInt8; */ + 0, /* PaUtilConverter *Int24_To_UInt8_Dither; */ + + 0, /* PaUtilConverter *Int16_To_Float32; */ + 0, /* PaUtilConverter *Int16_To_Int32; */ + 0, /* PaUtilConverter *Int16_To_Int24; */ + 0, /* PaUtilConverter *Int16_To_Int8; */ + 0, /* PaUtilConverter *Int16_To_Int8_Dither; */ + 0, /* PaUtilConverter *Int16_To_UInt8; */ + 0, /* PaUtilConverter *Int16_To_UInt8_Dither; */ + + 0, /* PaUtilConverter *Int8_To_Float32; */ + 0, /* PaUtilConverter *Int8_To_Int32; */ + 0, /* PaUtilConverter *Int8_To_Int24 */ + 0, /* PaUtilConverter *Int8_To_Int16; */ + 0, /* PaUtilConverter *Int8_To_UInt8; */ + + 0, /* PaUtilConverter *UInt8_To_Float32; */ + 0, /* PaUtilConverter *UInt8_To_Int32; */ + 0, /* PaUtilConverter *UInt8_To_Int24; */ + 0, /* PaUtilConverter *UInt8_To_Int16; */ + 0, /* PaUtilConverter *UInt8_To_Int8; */ + + 0, /* PaUtilConverter *Copy_8_To_8; */ + 0, /* PaUtilConverter *Copy_16_To_16; */ + 0, /* PaUtilConverter *Copy_24_To_24; */ + 0 /* PaUtilConverter *Copy_32_To_32; */ +}; + +/* -------------------------------------------------------------------------- */ + +#else /* PA_NO_STANDARD_CONVERTERS is not defined */ + +/* -------------------------------------------------------------------------- */ + +#define PA_CLIP_( val, min, max )\ + { val = ((val) < (min)) ? (min) : (((val) > (max)) ? (max) : (val)); } + + +static const float const_1_div_128_ = 1.0f / 128.0f; /* 8 bit multiplier */ + +static const float const_1_div_32768_ = 1.0f / 32768.f; /* 16 bit multiplier */ + +static const double const_1_div_2147483648_ = 1.0 / 2147483648.0; /* 32 bit multiplier */ + +/* -------------------------------------------------------------------------- */ + +static void Float32_To_Int32( + void *destinationBuffer, signed int destinationStride, + void *sourceBuffer, signed int sourceStride, + unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) +{ + float *src = (float*)sourceBuffer; + signed long *dest = (signed long*)destinationBuffer; + (void)ditherGenerator; /* unused parameter */ + + while( count-- ) + { + /* REVIEW */ + double scaled = *src * 0x7FFFFFFF; + *dest = (signed long) scaled; + + src += sourceStride; + dest += destinationStride; + } +} + +/* -------------------------------------------------------------------------- */ + +static void Float32_To_Int32_Dither( + void *destinationBuffer, signed int destinationStride, + void *sourceBuffer, signed int sourceStride, + unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) +{ + float *src = (float*)sourceBuffer; + signed long *dest = (signed long*)destinationBuffer; + + while( count-- ) + { + /* REVIEW */ + double dither = PaUtil_GenerateFloatTriangularDither( ditherGenerator ); + /* use smaller scaler to prevent overflow when we add the dither */ + double dithered = ((double)*src * (2147483646.0)) + dither; + *dest = (signed long) dithered; + + src += sourceStride; + dest += destinationStride; + } +} + +/* -------------------------------------------------------------------------- */ + +static void Float32_To_Int32_Clip( + void *destinationBuffer, signed int destinationStride, + void *sourceBuffer, signed int sourceStride, + unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) +{ + float *src = (float*)sourceBuffer; + signed long *dest = (signed long*)destinationBuffer; + (void) ditherGenerator; /* unused parameter */ + + while( count-- ) + { + /* REVIEW */ + double scaled = *src * 0x7FFFFFFF; + PA_CLIP_( scaled, -2147483648., 2147483647. ); + *dest = (signed long) scaled; + + src += sourceStride; + dest += destinationStride; + } +} + +/* -------------------------------------------------------------------------- */ + +static void Float32_To_Int32_DitherClip( + void *destinationBuffer, signed int destinationStride, + void *sourceBuffer, signed int sourceStride, + unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) +{ + float *src = (float*)sourceBuffer; + signed long *dest = (signed long*)destinationBuffer; + + while( count-- ) + { + /* REVIEW */ + 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 = (signed long) dithered; + + + 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; + signed long temp; + + (void) ditherGenerator; /* unused parameter */ + + while( count-- ) + { + /* convert to 32 bit and drop the low 8 bits */ + double scaled = *src * 0x7FFFFFFF; + temp = (signed long) 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; + signed long 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 = (signed long) 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; + signed long 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 = (signed long) 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; + signed long 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 = (signed long) 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; + signed short *dest = (signed short*)destinationBuffer; + (void)ditherGenerator; /* unused parameter */ + + while( count-- ) + { + + short samp = (short) (*src * (32767.0f)); + *dest = samp; + + 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; + signed short *dest = (signed short*)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; + *dest = (signed short) dithered; + + 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; + signed short *dest = (signed short*)destinationBuffer; + (void)ditherGenerator; /* unused parameter */ + + while( count-- ) + { + + long samp = (signed long) (*src * (32767.0f)); + PA_CLIP_( samp, -0x8000, 0x7FFF ); + *dest = (signed short) 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; + signed short *dest = (signed short*)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; + signed long samp = (signed long) dithered; + PA_CLIP_( samp, -0x8000, 0x7FFF ); + *dest = (signed short) samp; + + 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; + signed long samp = (signed long) 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-- ) + { + signed long samp = (signed long)(*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; + signed long samp = (signed long) 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 ) +{ + signed long *src = (signed long*)sourceBuffer; + float *dest = (float*)destinationBuffer; + (void)ditherGenerator; /* unused parameter */ + + while( count-- ) + { + *dest = (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 ) +{ + (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_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 ) +{ + signed long *src = (signed long*)sourceBuffer; + signed short *dest = (signed short*)destinationBuffer; + (void)ditherGenerator; /* unused parameter */ + + while( count-- ) + { + + /* IMPLEMENT ME */ + + 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 ) +{ + signed long *src = (signed long*)sourceBuffer; + signed short *dest = (signed short*)destinationBuffer; + (void)ditherGenerator; /* unused parameter */ + + while( count-- ) + { + + /* IMPLEMENT ME */ + + 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 ) +{ + signed long *src = (signed long*)sourceBuffer; + signed char *dest = (signed char*)destinationBuffer; + (void)ditherGenerator; /* unused parameter */ + + while( count-- ) + { + + /* IMPLEMENT ME */ + + 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 ) +{ + signed long *src = (signed long*)sourceBuffer; + signed char *dest = (signed char*)destinationBuffer; + (void)ditherGenerator; /* unused parameter */ + + while( count-- ) + { + + /* IMPLEMENT ME */ + + 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 ) +{ + signed long *src = (signed long*)sourceBuffer; + unsigned char *dest = (unsigned char*)destinationBuffer; + (void)ditherGenerator; /* unused parameter */ + + while( count-- ) + { + + /* IMPLEMENT ME */ + + 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 ) +{ + signed long *src = (signed long*)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; + signed long 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 = (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 ) +{ + (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_Int16( + 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_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 ) +{ + (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_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 ) +{ + (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_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 ) +{ + signed short *src = (signed short*)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 ) +{ + signed short *src = (signed short*)sourceBuffer; + signed long *dest = (signed long*)destinationBuffer; + (void)ditherGenerator; /* unused parameter */ + + while( count-- ) + { + + /* IMPLEMENT ME */ + + 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 ) +{ + (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_Int8( + void *destinationBuffer, signed int destinationStride, + void *sourceBuffer, signed int sourceStride, + unsigned int count, struct PaUtilTriangularDitherGenerator *ditherGenerator ) +{ + signed short *src = (signed short*)sourceBuffer; + signed char *dest = (signed char*)destinationBuffer; + (void)ditherGenerator; /* unused parameter */ + + while( count-- ) + { + + /* IMPLEMENT ME */ + + 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 ) +{ + signed short *src = (signed short*)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 ) +{ + signed short *src = (signed short*)sourceBuffer; + unsigned char *dest = (unsigned char*)destinationBuffer; + (void)ditherGenerator; /* unused parameter */ + + while( count-- ) + { + + /* IMPLEMENT ME */ + + 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 ) +{ + signed short *src = (signed short*)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; + signed long *dest = (signed long*)destinationBuffer; + (void)ditherGenerator; /* unused parameter */ + + while( count-- ) + { + + /* IMPLEMENT ME */ + + 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-- ) + { + + /* IMPLEMENT ME */ + + 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; + signed short *dest = (signed short*)destinationBuffer; + (void)ditherGenerator; /* unused parameter */ + + while( count-- ) + { + + /* IMPLEMENT ME */ + + 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-- ) + { + + /* IMPLEMENT ME */ + + 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; + signed long *dest = (signed long*)destinationBuffer; + (void)ditherGenerator; /* unused parameter */ + + while( count-- ) + { + + /* IMPLEMENT ME */ + + 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 ) +{ + (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 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; + signed short *dest = (signed short*)destinationBuffer; + (void)ditherGenerator; /* unused parameter */ + + while( count-- ) + { + + /* IMPLEMENT ME */ + + 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; + float *dest = (float*)destinationBuffer; + (void)ditherGenerator; /* unused parameter */ + + while( count-- ) + { + + /* IMPLEMENT ME */ + + 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 ) +{ + unsigned short *src = (unsigned short*)sourceBuffer; + unsigned short *dest = (unsigned short*)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 ) +{ + unsigned long *dest = (unsigned long*)destinationBuffer; + unsigned long *src = (unsigned long*)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 */ -- cgit v1.2.1