sdl-ios-xcode: src/audio/sdlgenaudiocvt.pl annotate

annotate src/audio/sdlgenaudiocvt.pl @ 3019:dfd23eb79be9

Allow builds that reduce or eliminate the converters/resamplers. We should probably give options to drop resamplers by channels, too, for developers that know they'll never need more than stereo, etc.

author	Ryan C. Gordon <icculus@icculus.org>
date	Sun, 11 Jan 2009 04:39:09 +0000
parents	786a48f8309c
children	70d876a0b90e

rev	line source
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1 #!/usr/bin/perl -w
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	2
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	3 use warnings;
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	4 use strict;
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	5
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	6 my @audiotypes = qw(
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	7 U8
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	8 S8
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	9 U16LSB
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	10 S16LSB
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	11 U16MSB
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	12 S16MSB
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	13 S32LSB
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	14 S32MSB
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	15 F32LSB
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	16 F32MSB
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	17 );
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	18
3008 786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	19 my @channels = ( 1, 2, 4, 6, 8 );
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	20 my %funcs;
3008 786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	21 my $custom_converters = 0;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	22
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	23
3008 786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	24 sub getTypeConvertHashId {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	25 my ($from, $to) = @_;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	26 return "TYPECONVERTER $from/$to";
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	27 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	28
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	29
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	30 sub getResamplerHashId {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	31 my ($from, $channels, $upsample, $multiple) = @_;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	32 return "RESAMPLER $from/$channels/$upsample/$multiple";
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	33 }
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	34
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	35
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	36 sub outputHeader {
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	37 print <<EOF;
1985 8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1982 diff changeset	38 /* DO NOT EDIT! This file is generated by sdlgenaudiocvt.pl */
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	39 /*
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	40 SDL - Simple DirectMedia Layer
2859 99210400e8b9 Updated copyright date Sam Lantinga <slouken@libsdl.org> parents: 2011 diff changeset	41 Copyright (C) 1997-2009 Sam Lantinga
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	42
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	43 This library is free software; you can redistribute it and/or
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	44 modify it under the terms of the GNU Lesser General Public
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	45 License as published by the Free Software Foundation; either
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	46 version 2.1 of the License, or (at your option) any later version.
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	47
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	48 This library is distributed in the hope that it will be useful,
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	49 but WITHOUT ANY WARRANTY; without even the implied warranty of
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	50 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	51 Lesser General Public License for more details.
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	52
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	53 You should have received a copy of the GNU Lesser General Public
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	54 License along with this library; if not, write to the Free Software
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	55 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	56
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	57 Sam Lantinga
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	58 slouken\@libsdl.org
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	59 */
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	60
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	61 #include "SDL_config.h"
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	62 #include "SDL_audio.h"
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	63 #include "SDL_audio_c.h"
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	64
3019 dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	65 #ifndef DEBUG_CONVERT
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	66 #define DEBUG_CONVERT 0
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	67 #endif
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	68
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	69
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	70 /* If you can guarantee your data and need space, you can eliminate code... */
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	71
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	72 /* Just build the arbitrary resamplers if you're saving code space. */
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	73 #ifndef LESS_RESAMPLERS
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	74 #define LESS_RESAMPLERS 0
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	75 #endif
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	76
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	77 /* Don't build any resamplers if you're REALLY saving code space. */
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	78 #ifndef NO_RESAMPLERS
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	79 #define NO_RESAMPLERS 0
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	80 #endif
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	81
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	82 /* Don't build any type converters if you're saving code space. */
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	83 #ifndef NO_CONVERTERS
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	84 #define NO_CONVERTERS 0
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	85 #endif
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	86
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	87
1985 8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1982 diff changeset	88 /* INDENT-OFF */
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	89
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	90 EOF
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	91
2011 b2b7154ce016 Fixed broken audio conversions between float and unsigned datatypes. Ryan C. Gordon <icculus@icculus.org> parents: 1985 diff changeset	92 my @vals = ( 127, 32767, 2147483647 );
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	93 foreach (@vals) {
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	94 my $val = $_;
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	95 my $fval = 1.0 / $val;
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	96 print("#define DIVBY${val} ${fval}f\n");
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	97 }
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	98
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	99 print("\n");
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	100 }
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	101
1985 8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1982 diff changeset	102 sub outputFooter {
8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1982 diff changeset	103 print <<EOF;
3008 786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	104 /* $custom_converters converters generated. */
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	105
1985 8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1982 diff changeset	106 /* INDENT-ON */
8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1982 diff changeset	107
8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1982 diff changeset	108 /* vi: set ts=4 sw=4 expandtab: */
8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1982 diff changeset	109 EOF
8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1982 diff changeset	110 }
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	111
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	112 sub splittype {
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	113 my $t = shift;
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	114 my ($signed, $size, $endian) = $t =~ /([USF])(\d+)([LM]SB\|)/;
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	115 my $float = ($signed eq 'F') ? 1 : 0;
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	116 $signed = (($float) or ($signed eq 'S')) ? 1 : 0;
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	117 $endian = 'NONE' if ($endian eq '');
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	118
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	119 my $ctype = '';
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	120 if ($float) {
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	121 $ctype = (($size == 32) ? 'float' : 'double');
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	122 } else {
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	123 $ctype = (($signed) ? 'S' : 'U') . "int${size}";
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	124 }
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	125
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	126 return ($signed, $float, $size, $endian, $ctype);
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	127 }
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	128
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	129 sub getSwapFunc {
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	130 my ($size, $signed, $float, $endian, $val) = @_;
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	131 my $BEorLE = (($endian eq 'MSB') ? 'BE' : 'LE');
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	132 my $code = '';
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	133
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	134 if ($float) {
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	135 $code = "SDL_SwapFloat${BEorLE}($val)";
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	136 } else {
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	137 if ($size > 8) {
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	138 $code = "SDL_Swap${BEorLE}${size}($val)";
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	139 } else {
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	140 $code = $val;
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	141 }
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	142
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	143 if (($signed) and (!$float)) {
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	144 $code = "((Sint${size}) $code)";
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	145 }
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	146 }
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	147
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	148 return "${code}";
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	149 }
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	150
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	151
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	152 sub maxIntVal {
2011 b2b7154ce016 Fixed broken audio conversions between float and unsigned datatypes. Ryan C. Gordon <icculus@icculus.org> parents: 1985 diff changeset	153 my $size = shift;
b2b7154ce016 Fixed broken audio conversions between float and unsigned datatypes. Ryan C. Gordon <icculus@icculus.org> parents: 1985 diff changeset	154 if ($size == 8) {
b2b7154ce016 Fixed broken audio conversions between float and unsigned datatypes. Ryan C. Gordon <icculus@icculus.org> parents: 1985 diff changeset	155 return 0x7F;
b2b7154ce016 Fixed broken audio conversions between float and unsigned datatypes. Ryan C. Gordon <icculus@icculus.org> parents: 1985 diff changeset	156 } elsif ($size == 16) {
b2b7154ce016 Fixed broken audio conversions between float and unsigned datatypes. Ryan C. Gordon <icculus@icculus.org> parents: 1985 diff changeset	157 return 0x7FFF;
b2b7154ce016 Fixed broken audio conversions between float and unsigned datatypes. Ryan C. Gordon <icculus@icculus.org> parents: 1985 diff changeset	158 } elsif ($size == 32) {
b2b7154ce016 Fixed broken audio conversions between float and unsigned datatypes. Ryan C. Gordon <icculus@icculus.org> parents: 1985 diff changeset	159 return 0x7FFFFFFF;
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	160 }
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	161
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	162 die("bug in script.\n");
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	163 }
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	164
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	165 sub getFloatToIntMult {
2011 b2b7154ce016 Fixed broken audio conversions between float and unsigned datatypes. Ryan C. Gordon <icculus@icculus.org> parents: 1985 diff changeset	166 my $size = shift;
b2b7154ce016 Fixed broken audio conversions between float and unsigned datatypes. Ryan C. Gordon <icculus@icculus.org> parents: 1985 diff changeset	167 my $val = maxIntVal($size) . '.0';
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	168 $val .= 'f' if ($size < 32);
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	169 return $val;
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	170 }
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	171
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	172 sub getIntToFloatDivBy {
2011 b2b7154ce016 Fixed broken audio conversions between float and unsigned datatypes. Ryan C. Gordon <icculus@icculus.org> parents: 1985 diff changeset	173 my $size = shift;
b2b7154ce016 Fixed broken audio conversions between float and unsigned datatypes. Ryan C. Gordon <icculus@icculus.org> parents: 1985 diff changeset	174 return 'DIVBY' . maxIntVal($size);
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	175 }
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	176
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	177 sub getSignFlipVal {
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	178 my $size = shift;
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	179 if ($size == 8) {
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	180 return '0x80';
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	181 } elsif ($size == 16) {
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	182 return '0x8000';
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	183 } elsif ($size == 32) {
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	184 return '0x80000000';
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	185 }
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	186
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	187 die("bug in script.\n");
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	188 }
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	189
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	190 sub buildCvtFunc {
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	191 my ($from, $to) = @_;
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	192 my ($fsigned, $ffloat, $fsize, $fendian, $fctype) = splittype($from);
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	193 my ($tsigned, $tfloat, $tsize, $tendian, $tctype) = splittype($to);
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	194 my $diffs = 0;
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	195 $diffs++ if ($fsize != $tsize);
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	196 $diffs++ if ($fsigned != $tsigned);
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	197 $diffs++ if ($ffloat != $tfloat);
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	198 $diffs++ if ($fendian ne $tendian);
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	199
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	200 return if ($diffs == 0);
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	201
3008 786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	202 my $hashid = getTypeConvertHashId($from, $to);
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	203 if (1) { # !!! FIXME: if ($diffs > 1) {
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	204 my $sym = "SDL_Convert_${from}_to_${to}";
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	205 $funcs{$hashid} = $sym;
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	206 $custom_converters++;
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	207
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	208 # Always unsigned for ints, for possible byteswaps.
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	209 my $srctype = (($ffloat) ? 'float' : "Uint${fsize}");
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	210
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	211 print <<EOF;
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	212 static void SDLCALL
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	213 ${sym}(SDL_AudioCVT * cvt, SDL_AudioFormat format)
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	214 {
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	215 int i;
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	216 const $srctype *src;
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	217 $tctype *dst;
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	218
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	219 #ifdef DEBUG_CONVERT
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	220 fprintf(stderr, "Converting AUDIO_${from} to AUDIO_${to}.\\n");
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	221 #endif
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	222
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	223 EOF
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	224
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	225 if ($fsize < $tsize) {
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	226 my $mult = $tsize / $fsize;
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	227 print <<EOF;
2956 1210d5a28e16 Fixed off-by-one in audio converters, when growing a data type's size. Ryan C. Gordon <icculus@icculus.org> parents: 2955 diff changeset	228 src = ((const $srctype *) (cvt->buf + cvt->len_cvt)) - 1;
1210d5a28e16 Fixed off-by-one in audio converters, when growing a data type's size. Ryan C. Gordon <icculus@icculus.org> parents: 2955 diff changeset	229 dst = (($tctype ) (cvt->buf + cvt->len_cvt $mult)) - 1;
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	230 for (i = cvt->len_cvt / sizeof ($srctype); i; --i, --src, --dst) {
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	231 EOF
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	232 } else {
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	233 print <<EOF;
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	234 src = (const $srctype *) cvt->buf;
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	235 dst = ($tctype *) cvt->buf;
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	236 for (i = cvt->len_cvt / sizeof ($srctype); i; --i, ++src, ++dst) {
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	237 EOF
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	238 }
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	239
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	240 # Have to convert to/from float/int.
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	241 # !!! FIXME: cast through double for int32<->float?
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	242 my $code = getSwapFunc($fsize, $fsigned, $ffloat, $fendian, '*src');
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	243 if ($ffloat != $tfloat) {
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	244 if ($ffloat) {
2011 b2b7154ce016 Fixed broken audio conversions between float and unsigned datatypes. Ryan C. Gordon <icculus@icculus.org> parents: 1985 diff changeset	245 my $mult = getFloatToIntMult($tsize);
b2b7154ce016 Fixed broken audio conversions between float and unsigned datatypes. Ryan C. Gordon <icculus@icculus.org> parents: 1985 diff changeset	246 if (!$tsigned) { # bump from -1.0f/1.0f to 0.0f/2.0f
b2b7154ce016 Fixed broken audio conversions between float and unsigned datatypes. Ryan C. Gordon <icculus@icculus.org> parents: 1985 diff changeset	247 $code = "($code + 1.0f)";
b2b7154ce016 Fixed broken audio conversions between float and unsigned datatypes. Ryan C. Gordon <icculus@icculus.org> parents: 1985 diff changeset	248 }
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	249 $code = "(($tctype) ($code * $mult))";
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	250 } else {
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	251 # $divby will be the reciprocal, to avoid pipeline stalls
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	252 # from floating point division...so multiply it.
2011 b2b7154ce016 Fixed broken audio conversions between float and unsigned datatypes. Ryan C. Gordon <icculus@icculus.org> parents: 1985 diff changeset	253 my $divby = getIntToFloatDivBy($fsize);
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	254 $code = "(((float) $code) * $divby)";
2011 b2b7154ce016 Fixed broken audio conversions between float and unsigned datatypes. Ryan C. Gordon <icculus@icculus.org> parents: 1985 diff changeset	255 if (!$fsigned) { # bump from 0.0f/2.0f to -1.0f/1.0f.
b2b7154ce016 Fixed broken audio conversions between float and unsigned datatypes. Ryan C. Gordon <icculus@icculus.org> parents: 1985 diff changeset	256 $code = "($code - 1.0f)";
b2b7154ce016 Fixed broken audio conversions between float and unsigned datatypes. Ryan C. Gordon <icculus@icculus.org> parents: 1985 diff changeset	257 }
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	258 }
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	259 } else {
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	260 # All integer conversions here.
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	261 if ($fsigned != $tsigned) {
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	262 my $signflipval = getSignFlipVal($fsize);
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	263 $code = "(($code) ^ $signflipval)";
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	264 }
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	265
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	266 my $shiftval = abs($fsize - $tsize);
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	267 if ($fsize < $tsize) {
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	268 $code = "((($tctype) $code) << $shiftval)";
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	269 } elsif ($fsize > $tsize) {
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	270 $code = "(($tctype) ($code >> $shiftval))";
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	271 }
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	272 }
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	273
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	274 my $swap = getSwapFunc($tsize, $tsigned, $tfloat, $tendian, 'val');
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	275
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	276 print <<EOF;
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	277 const $tctype val = $code;
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	278 *dst = ${swap};
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	279 }
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	280
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	281 EOF
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	282
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	283 if ($fsize > $tsize) {
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	284 my $divby = $fsize / $tsize;
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	285 print(" cvt->len_cvt /= $divby;\n");
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	286 } elsif ($fsize < $tsize) {
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	287 my $mult = $tsize / $fsize;
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	288 print(" cvt->len_cvt *= $mult;\n");
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	289 }
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	290
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	291 print <<EOF;
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	292 if (cvt->filters[++cvt->filter_index]) {
2955 2692999d5271 Avoid unnecessary assignment in generated audio type converters. Ryan C. Gordon <icculus@icculus.org> parents: 2859 diff changeset	293 cvt->filters[cvt->filter_index] (cvt, AUDIO_$to);
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	294 }
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	295 }
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	296
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	297 EOF
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	298
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	299 } else {
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	300 if ($fsigned != $tsigned) {
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	301 $funcs{$hashid} = 'SDL_ConvertSigned';
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	302 } elsif ($ffloat != $tfloat) {
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	303 $funcs{$hashid} = 'SDL_ConvertFloat';
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	304 } elsif ($fsize != $tsize) {
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	305 $funcs{$hashid} = 'SDL_ConvertSize';
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	306 } elsif ($fendian ne $tendian) {
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	307 $funcs{$hashid} = 'SDL_ConvertEndian';
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	308 } else {
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	309 die("error in script.\n");
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	310 }
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	311 }
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	312 }
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	313
3008 786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	314
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	315 sub buildTypeConverters {
3019 dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	316 print "#if !NO_CONVERTERS\n\n";
3008 786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	317 foreach (@audiotypes) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	318 my $from = $_;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	319 foreach (@audiotypes) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	320 my $to = $_;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	321 buildCvtFunc($from, $to);
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	322 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	323 }
3019 dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	324 print "#endif /* !NO_CONVERTERS */\n\n\n";
3008 786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	325
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	326 print "const SDL_AudioTypeFilters sdl_audio_type_filters[] =\n{\n";
3019 dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	327 print "#if !NO_CONVERTERS\n";
3008 786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	328 foreach (@audiotypes) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	329 my $from = $_;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	330 foreach (@audiotypes) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	331 my $to = $_;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	332 if ($from ne $to) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	333 my $hashid = getTypeConvertHashId($from, $to);
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	334 my $sym = $funcs{$hashid};
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	335 print(" { AUDIO_$from, AUDIO_$to, $sym },\n");
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	336 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	337 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	338 }
3019 dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	339 print "#endif /* !NO_CONVERTERS */\n";
3008 786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	340
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	341 print "};\n\n\n";
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	342 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	343
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	344 sub getBiggerCtype {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	345 my ($isfloat, $size) = @_;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	346
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	347 if ($isfloat) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	348 if ($size == 32) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	349 return 'double';
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	350 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	351 die("bug in script.\n");
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	352 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	353
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	354 if ($size == 8) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	355 return 'Sint16';
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	356 } elsif ($size == 16) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	357 return 'Sint32'
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	358 } elsif ($size == 32) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	359 return 'Sint64'
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	360 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	361
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	362 die("bug in script.\n");
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	363 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	364
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	365
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	366 # These handle arbitrary resamples...44100Hz to 48000Hz, for example.
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	367 # Man, this code is skanky.
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	368 sub buildArbitraryResampleFunc {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	369 # !!! FIXME: we do a lot of unnecessary and ugly casting in here, due to getSwapFunc().
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	370 my ($from, $channels, $upsample) = @_;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	371 my ($fsigned, $ffloat, $fsize, $fendian, $fctype) = splittype($from);
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	372
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	373 my $bigger = getBiggerCtype($ffloat, $fsize);
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	374 my $interp = ($ffloat) ? '* 0.5' : '>> 1';
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	375
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	376 my $resample = ($upsample) ? 'Upsample' : 'Downsample';
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	377 my $hashid = getResamplerHashId($from, $channels, $upsample, 0);
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	378 my $sym = "SDL_${resample}_${from}_${channels}c";
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	379 $funcs{$hashid} = $sym;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	380 $custom_converters++;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	381
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	382 my $fudge = $fsize * $channels * 2; # !!! FIXME
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	383 my $eps_adjust = ($upsample) ? 'dstsize' : 'srcsize';
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	384 my $incr = '';
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	385 my $incr2 = '';
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	386
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	387
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	388 # !!! FIXME: DEBUG_CONVERT should report frequencies.
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	389 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	390 static void SDLCALL
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	391 ${sym}(SDL_AudioCVT * cvt, SDL_AudioFormat format)
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	392 {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	393 #ifdef DEBUG_CONVERT
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	394 fprintf(stderr, "$resample arbitrary (x%f) AUDIO_${from}, ${channels} channels.\\n", cvt->rate_incr);
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	395 #endif
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	396
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	397 const int srcsize = cvt->len_cvt - $fudge;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	398 const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr);
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	399 register int eps = 0;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	400 EOF
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	401
3008 786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	402 # Upsampling (growing the buffer) needs to work backwards, since we
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	403 # overwrite the buffer as we go.
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	404 if ($upsample) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	405 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	406 $fctype dst = (($fctype ) (cvt->buf + dstsize)) - $channels;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	407 const $fctype src = (($fctype ) (cvt->buf + cvt->len_cvt)) - $channels;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	408 const $fctype target = ((const $fctype ) cvt->buf) - $channels;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	409 EOF
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	410 } else {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	411 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	412 $fctype dst = ($fctype ) cvt->buf;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	413 const $fctype src = ($fctype ) cvt->buf;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	414 const $fctype target = (const $fctype ) (cvt->buf + dstsize);
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	415 EOF
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	416 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	417
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	418 for (my $i = 0; $i < $channels; $i++) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	419 my $idx = ($upsample) ? (($channels - $i) - 1) : $i;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	420 my $val = getSwapFunc($fsize, $fsigned, $ffloat, $fendian, "src[$idx]");
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	421 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	422 $fctype sample${idx} = $val;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	423 EOF
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	424 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	425
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	426 for (my $i = 0; $i < $channels; $i++) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	427 my $idx = ($upsample) ? (($channels - $i) - 1) : $i;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	428 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	429 $fctype last_sample${idx} = sample${idx};
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	430 EOF
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	431 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	432
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	433 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	434 while (dst != target) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	435 EOF
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	436
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	437 if ($upsample) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	438 for (my $i = 0; $i < $channels; $i++) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	439 # !!! FIXME: don't do this swap every write, just when the samples change.
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	440 my $idx = (($channels - $i) - 1);
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	441 my $val = getSwapFunc($fsize, $fsigned, $ffloat, $fendian, "sample${idx}");
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	442 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	443 dst[$idx] = $val;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	444 EOF
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	445 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	446
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	447 $incr = ($channels == 1) ? 'dst--' : "dst -= $channels";
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	448 $incr2 = ($channels == 1) ? 'src--' : "src -= $channels";
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	449
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	450 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	451 $incr;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	452 eps += srcsize;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	453 if ((eps << 1) >= dstsize) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	454 $incr2;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	455 EOF
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	456 } else { # downsample.
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	457 $incr = ($channels == 1) ? 'src++' : "src += $channels";
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	458 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	459 $incr;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	460 eps += dstsize;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	461 if ((eps << 1) >= srcsize) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	462 EOF
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	463 for (my $i = 0; $i < $channels; $i++) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	464 my $val = getSwapFunc($fsize, $fsigned, $ffloat, $fendian, "sample${i}");
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	465 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	466 dst[$i] = $val;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	467 EOF
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	468 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	469
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	470 $incr = ($channels == 1) ? 'dst++' : "dst += $channels";
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	471 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	472 $incr;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	473 EOF
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	474 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	475
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	476 for (my $i = 0; $i < $channels; $i++) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	477 my $idx = ($upsample) ? (($channels - $i) - 1) : $i;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	478 my $swapped = getSwapFunc($fsize, $fsigned, $ffloat, $fendian, "src[$idx]");
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	479 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	480 sample${idx} = ($fctype) (((($bigger) $swapped) + (($bigger) last_sample${idx})) $interp);
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	481 EOF
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	482 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	483
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	484 for (my $i = 0; $i < $channels; $i++) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	485 my $idx = ($upsample) ? (($channels - $i) - 1) : $i;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	486 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	487 last_sample${idx} = sample${idx};
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	488 EOF
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	489 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	490
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	491 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	492 eps -= $eps_adjust;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	493 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	494 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	495 EOF
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	496
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	497 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	498 cvt->len_cvt = dstsize;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	499 if (cvt->filters[++cvt->filter_index]) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	500 cvt->filters[cvt->filter_index] (cvt, format);
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	501 }
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	502 }
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	503
3008 786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	504 EOF
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	505
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	506 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	507
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	508 # These handle clean resamples...doubling and quadrupling the sample rate, etc.
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	509 sub buildMultipleResampleFunc {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	510 # !!! FIXME: we do a lot of unnecessary and ugly casting in here, due to getSwapFunc().
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	511 my ($from, $channels, $upsample, $multiple) = @_;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	512 my ($fsigned, $ffloat, $fsize, $fendian, $fctype) = splittype($from);
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	513
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	514 my $bigger = getBiggerCtype($ffloat, $fsize);
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	515 my $interp = ($ffloat) ? '* 0.5' : '>> 1';
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	516 my $interp2 = ($ffloat) ? '* 0.25' : '>> 2';
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	517 my $mult3 = ($ffloat) ? '3.0' : '3';
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	518 my $lencvtop = ($upsample) ? '*' : '/';
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	519
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	520 my $resample = ($upsample) ? 'Upsample' : 'Downsample';
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	521 my $hashid = getResamplerHashId($from, $channels, $upsample, $multiple);
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	522 my $sym = "SDL_${resample}_${from}_${channels}c_x${multiple}";
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	523 $funcs{$hashid} = $sym;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	524 $custom_converters++;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	525
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	526 # !!! FIXME: DEBUG_CONVERT should report frequencies.
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	527 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	528 static void SDLCALL
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	529 ${sym}(SDL_AudioCVT * cvt, SDL_AudioFormat format)
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	530 {
3008 786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	531 #ifdef DEBUG_CONVERT
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	532 fprintf(stderr, "$resample (x${multiple}) AUDIO_${from}, ${channels} channels.\\n");
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	533 #endif
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	534
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	535 const int srcsize = cvt->len_cvt;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	536 const int dstsize = cvt->len_cvt $lencvtop $multiple;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	537 EOF
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	538
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	539 # Upsampling (growing the buffer) needs to work backwards, since we
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	540 # overwrite the buffer as we go.
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	541 if ($upsample) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	542 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	543 $fctype dst = (($fctype ) (cvt->buf + dstsize)) - $channels;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	544 const $fctype src = (($fctype ) (cvt->buf + cvt->len_cvt)) - $channels;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	545 const $fctype target = ((const $fctype ) cvt->buf) - $channels;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	546 EOF
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	547 } else {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	548 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	549 $fctype dst = ($fctype ) cvt->buf;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	550 const $fctype src = ($fctype ) cvt->buf;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	551 const $fctype target = (const $fctype ) (cvt->buf + dstsize);
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	552 EOF
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	553 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	554
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	555 for (my $i = 0; $i < $channels; $i++) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	556 my $idx = ($upsample) ? (($channels - $i) - 1) : $i;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	557 my $val = getSwapFunc($fsize, $fsigned, $ffloat, $fendian, "src[$idx]");
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	558 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	559 $bigger last_sample${idx} = ($bigger) $val;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	560 EOF
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	561 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	562
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	563 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	564 while (dst != target) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	565 EOF
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	566
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	567 for (my $i = 0; $i < $channels; $i++) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	568 my $idx = ($upsample) ? (($channels - $i) - 1) : $i;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	569 my $val = getSwapFunc($fsize, $fsigned, $ffloat, $fendian, "src[$idx]");
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	570 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	571 const $bigger sample${idx} = ($bigger) $val;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	572 EOF
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	573 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	574
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	575 my $incr = '';
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	576 if ($upsample) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	577 $incr = ($channels == 1) ? 'src--' : "src -= $channels";
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	578 } else {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	579 my $amount = $channels * $multiple;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	580 $incr = "src += $amount"; # can't ever be 1, so no "++" version.
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	581 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	582
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	583
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	584 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	585 $incr;
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	586 EOF
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	587
3008 786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	588 # !!! FIXME: This really begs for some Altivec or SSE, etc.
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	589 if ($upsample) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	590 if ($multiple == 2) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	591 for (my $i = $channels-1; $i >= 0; $i--) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	592 my $dsti = $i + $channels;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	593 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	594 dst[$dsti] = ($fctype) ((sample${i} + last_sample${i}) $interp);
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	595 EOF
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	596 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	597 for (my $i = $channels-1; $i >= 0; $i--) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	598 my $dsti = $i;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	599 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	600 dst[$dsti] = ($fctype) sample${i};
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	601 EOF
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	602 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	603 } elsif ($multiple == 4) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	604 for (my $i = $channels-1; $i >= 0; $i--) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	605 my $dsti = $i + ($channels * 3);
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	606 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	607 dst[$dsti] = ($fctype) sample${i};
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	608 EOF
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	609 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	610
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	611 for (my $i = $channels-1; $i >= 0; $i--) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	612 my $dsti = $i + ($channels * 2);
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	613 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	614 dst[$dsti] = ($fctype) ((($mult3 * sample${i}) + last_sample${i}) $interp2);
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	615 EOF
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	616 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	617
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	618 for (my $i = $channels-1; $i >= 0; $i--) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	619 my $dsti = $i + ($channels * 1);
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	620 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	621 dst[$dsti] = ($fctype) ((sample${i} + last_sample${i}) $interp);
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	622 EOF
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	623 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	624
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	625 for (my $i = $channels-1; $i >= 0; $i--) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	626 my $dsti = $i + ($channels * 0);
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	627 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	628 dst[$dsti] = ($fctype) ((sample${i} + ($mult3 * last_sample${i})) $interp2);
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	629 EOF
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	630 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	631 } else {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	632 die('bug in program.'); # we only handle x2 and x4.
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	633 }
3008 786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	634 } else { # downsample.
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	635 if ($multiple == 2) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	636 for (my $i = 0; $i < $channels; $i++) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	637 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	638 dst[$i] = ($fctype) ((sample${i} + last_sample${i}) $interp);
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	639 EOF
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	640 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	641 } elsif ($multiple == 4) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	642 # !!! FIXME: interpolate all 4 samples?
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	643 for (my $i = 0; $i < $channels; $i++) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	644 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	645 dst[$i] = ($fctype) ((sample${i} + last_sample${i}) $interp);
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	646 EOF
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	647 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	648 } else {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	649 die('bug in program.'); # we only handle x2 and x4.
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	650 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	651 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	652
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	653 for (my $i = 0; $i < $channels; $i++) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	654 my $idx = ($upsample) ? (($channels - $i) - 1) : $i;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	655 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	656 last_sample${idx} = sample${idx};
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	657 EOF
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	658 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	659
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	660 if ($upsample) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	661 my $amount = $channels * $multiple;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	662 $incr = "dst -= $amount"; # can't ever be 1, so no "--" version.
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	663 } else {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	664 $incr = ($channels == 1) ? 'dst++' : "dst += $channels";
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	665 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	666
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	667 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	668 $incr;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	669 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	670
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	671 cvt->len_cvt = dstsize;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	672 if (cvt->filters[++cvt->filter_index]) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	673 cvt->filters[cvt->filter_index] (cvt, format);
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	674 }
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	675 }
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	676
3008 786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	677 EOF
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	678
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	679 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	680
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	681 sub buildResamplers {
3019 dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	682 print "#if !NO_RESAMPLERS\n\n";
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	683 foreach (@audiotypes) {
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	684 my $from = $_;
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	685 foreach (@channels) {
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	686 my $channel = $_;
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	687 buildArbitraryResampleFunc($from, $channel, 1);
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	688 buildArbitraryResampleFunc($from, $channel, 0);
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	689 }
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	690 }
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	691
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	692 print "\n#if !LESS_RESAMPLERS\n\n";
3008 786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	693 foreach (@audiotypes) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	694 my $from = $_;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	695 foreach (@channels) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	696 my $channel = $_;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	697 for (my $multiple = 2; $multiple <= 4; $multiple += 2) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	698 buildMultipleResampleFunc($from, $channel, 1, $multiple);
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	699 buildMultipleResampleFunc($from, $channel, 0, $multiple);
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	700 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	701 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	702 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	703
3019 dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	704 print "#endif /* !LESS_RESAMPLERS */\n";
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	705 print "#endif /* !NO_RESAMPLERS */\n\n\n";
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	706
3008 786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	707 print "const SDL_AudioRateFilters sdl_audio_rate_filters[] =\n{\n";
3019 dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	708 print "#if !NO_RESAMPLERS\n";
3008 786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	709 foreach (@audiotypes) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	710 my $from = $_;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	711 foreach (@channels) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	712 my $channel = $_;
3019 dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	713 for (my $upsample = 0; $upsample <= 1; $upsample++) {
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	714 my $hashid = getResamplerHashId($from, $channel, $upsample, 0);
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	715 my $sym = $funcs{$hashid};
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	716 print(" { AUDIO_$from, $channel, $upsample, 0, $sym },\n");
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	717 }
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	718 }
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	719 }
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	720
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	721 print "#if !LESS_RESAMPLERS\n";
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	722 foreach (@audiotypes) {
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	723 my $from = $_;
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	724 foreach (@channels) {
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	725 my $channel = $_;
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	726 for (my $multiple = 2; $multiple <= 4; $multiple += 2) {
3008 786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	727 for (my $upsample = 0; $upsample <= 1; $upsample++) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	728 my $hashid = getResamplerHashId($from, $channel, $upsample, $multiple);
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	729 my $sym = $funcs{$hashid};
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	730 print(" { AUDIO_$from, $channel, $upsample, $multiple, $sym },\n");
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	731 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	732 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	733 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	734 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	735
3019 dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	736 print "#endif /* !LESS_RESAMPLERS */\n";
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	737 print "#endif /* !NO_RESAMPLERS */\n";
3008 786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	738 print "};\n\n";
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	739 }
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	740
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	741
3008 786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	742 # mainline ...
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	743
3008 786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	744 outputHeader();
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	745 buildTypeConverters();
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	746 buildResamplers();
1985 8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1982 diff changeset	747 outputFooter();
8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1982 diff changeset	748
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	749 exit 0;
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	750
1985 8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1982 diff changeset	751 # end of sdlgenaudiocvt.pl ...
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	752

Mercurial > sdl-ios-xcode

annotate src/audio/sdlgenaudiocvt.pl @ 3019:dfd23eb79be9