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

annotate src/audio/sdlgenaudiocvt.pl @ 3469:8c5fb2a3b11d

RenderReadPixels and RenderWritePixels functions work with back buffer now and all asynchronous operations are flushed before reading or writing to backbuffer. Thanks Sam for clarification of this.

author	Mike Gorchak <lestat@i.com.ua>
date	Sat, 21 Nov 2009 06:17:50 +0000
parents	77c3e67f0740
children	bfa8d34ce03a

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 $tctype *dst;
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	218
3032 77c3e67f0740 Fixed Visual C++ build Sam Lantinga <slouken@libsdl.org> parents: 3020 diff changeset	219 #if DEBUG_CONVERT
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	220 fprintf(stderr, "Converting AUDIO_${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, $sym },\n");
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	336 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	337 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	338 }
3019 dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	339 print "#endif /* !NO_CONVERTERS */\n";
3008 786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	340
3020 70d876a0b90e NULL-terminate the lists of autogenerated converters. Ryan C. Gordon <icculus@icculus.org> parents: 3019 diff changeset	341 print(" { 0, 0, NULL }\n");
3008 786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	342 print "};\n\n\n";
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	343 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	344
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	345 sub getBiggerCtype {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	346 my ($isfloat, $size) = @_;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	347
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	348 if ($isfloat) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	349 if ($size == 32) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	350 return 'double';
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	351 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	352 die("bug in script.\n");
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	353 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	354
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	355 if ($size == 8) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	356 return 'Sint16';
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	357 } elsif ($size == 16) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	358 return 'Sint32'
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	359 } elsif ($size == 32) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	360 return 'Sint64'
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
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	363 die("bug in script.\n");
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
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	367 # 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	368 # Man, this code is skanky.
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	369 sub buildArbitraryResampleFunc {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	370 # !!! 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	371 my ($from, $channels, $upsample) = @_;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	372 my ($fsigned, $ffloat, $fsize, $fendian, $fctype) = splittype($from);
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	373
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	374 my $bigger = getBiggerCtype($ffloat, $fsize);
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	375 my $interp = ($ffloat) ? '* 0.5' : '>> 1';
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	376
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	377 my $resample = ($upsample) ? 'Upsample' : 'Downsample';
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	378 my $hashid = getResamplerHashId($from, $channels, $upsample, 0);
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	379 my $sym = "SDL_${resample}_${from}_${channels}c";
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	380 $funcs{$hashid} = $sym;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	381 $custom_converters++;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	382
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	383 my $fudge = $fsize * $channels * 2; # !!! FIXME
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	384 my $eps_adjust = ($upsample) ? 'dstsize' : 'srcsize';
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	385 my $incr = '';
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	386 my $incr2 = '';
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
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	389 # !!! FIXME: DEBUG_CONVERT should report frequencies.
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	390 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	391 static void SDLCALL
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	392 ${sym}(SDL_AudioCVT * cvt, SDL_AudioFormat format)
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	393 {
3032 77c3e67f0740 Fixed Visual C++ build Sam Lantinga <slouken@libsdl.org> parents: 3020 diff changeset	394 #if DEBUG_CONVERT
3008 786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	395 fprintf(stderr, "$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	396 #endif
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	397
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	398 const int srcsize = cvt->len_cvt - $fudge;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	399 const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr);
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	400 register int eps = 0;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	401 EOF
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	402
3008 786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	403 # Upsampling (growing the buffer) needs to work backwards, since we
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	404 # overwrite the buffer as we go.
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	405 if ($upsample) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	406 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	407 $fctype dst = (($fctype ) (cvt->buf + dstsize)) - $channels;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	408 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	409 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	410 EOF
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	411 } else {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	412 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	413 $fctype dst = ($fctype ) cvt->buf;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	414 const $fctype src = ($fctype ) cvt->buf;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	415 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	416 EOF
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
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	419 for (my $i = 0; $i < $channels; $i++) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	420 my $idx = ($upsample) ? (($channels - $i) - 1) : $i;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	421 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	422 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	423 $fctype sample${idx} = $val;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	424 EOF
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
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	427 for (my $i = 0; $i < $channels; $i++) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	428 my $idx = ($upsample) ? (($channels - $i) - 1) : $i;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	429 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	430 $fctype last_sample${idx} = sample${idx};
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	431 EOF
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	432 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	433
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	434 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	435 while (dst != target) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	436 EOF
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	437
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	438 if ($upsample) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	439 for (my $i = 0; $i < $channels; $i++) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	440 # !!! 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	441 my $idx = (($channels - $i) - 1);
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	442 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	443 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	444 dst[$idx] = $val;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	445 EOF
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
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	448 $incr = ($channels == 1) ? 'dst--' : "dst -= $channels";
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	449 $incr2 = ($channels == 1) ? 'src--' : "src -= $channels";
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	450
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	451 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	452 $incr;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	453 eps += srcsize;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	454 if ((eps << 1) >= dstsize) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	455 $incr2;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	456 EOF
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	457 } else { # downsample.
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	458 $incr = ($channels == 1) ? 'src++' : "src += $channels";
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	459 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	460 $incr;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	461 eps += dstsize;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	462 if ((eps << 1) >= srcsize) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	463 EOF
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	464 for (my $i = 0; $i < $channels; $i++) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	465 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	466 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	467 dst[$i] = $val;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	468 EOF
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
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	471 $incr = ($channels == 1) ? 'dst++' : "dst += $channels";
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	472 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	473 $incr;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	474 EOF
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
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	477 for (my $i = 0; $i < $channels; $i++) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	478 my $idx = ($upsample) ? (($channels - $i) - 1) : $i;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	479 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	480 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	481 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	482 EOF
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
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	485 for (my $i = 0; $i < $channels; $i++) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	486 my $idx = ($upsample) ? (($channels - $i) - 1) : $i;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	487 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	488 last_sample${idx} = sample${idx};
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	489 EOF
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
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	492 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	493 eps -= $eps_adjust;
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 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	496 EOF
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	497
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	498 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	499 cvt->len_cvt = dstsize;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	500 if (cvt->filters[++cvt->filter_index]) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	501 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	502 }
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	503 }
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	504
3008 786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	505 EOF
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
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	509 # 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	510 sub buildMultipleResampleFunc {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	511 # !!! 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	512 my ($from, $channels, $upsample, $multiple) = @_;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	513 my ($fsigned, $ffloat, $fsize, $fendian, $fctype) = splittype($from);
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	514
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	515 my $bigger = getBiggerCtype($ffloat, $fsize);
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	516 my $interp = ($ffloat) ? '* 0.5' : '>> 1';
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	517 my $interp2 = ($ffloat) ? '* 0.25' : '>> 2';
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	518 my $mult3 = ($ffloat) ? '3.0' : '3';
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	519 my $lencvtop = ($upsample) ? '*' : '/';
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	520
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	521 my $resample = ($upsample) ? 'Upsample' : 'Downsample';
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	522 my $hashid = getResamplerHashId($from, $channels, $upsample, $multiple);
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	523 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	524 $funcs{$hashid} = $sym;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	525 $custom_converters++;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	526
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	527 # !!! FIXME: DEBUG_CONVERT should report frequencies.
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	528 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	529 static void SDLCALL
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	530 ${sym}(SDL_AudioCVT * cvt, SDL_AudioFormat format)
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	531 {
3032 77c3e67f0740 Fixed Visual C++ build Sam Lantinga <slouken@libsdl.org> parents: 3020 diff changeset	532 #if DEBUG_CONVERT
3008 786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	533 fprintf(stderr, "$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	534 #endif
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	535
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	536 const int srcsize = cvt->len_cvt;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	537 const int dstsize = cvt->len_cvt $lencvtop $multiple;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	538 EOF
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	539
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	540 # Upsampling (growing the buffer) needs to work backwards, since we
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	541 # overwrite the buffer as we go.
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	542 if ($upsample) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	543 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	544 $fctype dst = (($fctype ) (cvt->buf + dstsize)) - $channels;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	545 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	546 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	547 EOF
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	548 } else {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	549 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	550 $fctype dst = ($fctype ) cvt->buf;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	551 const $fctype src = ($fctype ) cvt->buf;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	552 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	553 EOF
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
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	556 for (my $i = 0; $i < $channels; $i++) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	557 my $idx = ($upsample) ? (($channels - $i) - 1) : $i;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	558 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	559 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	560 $bigger last_sample${idx} = ($bigger) $val;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	561 EOF
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
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	564 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	565 while (dst != target) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	566 EOF
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	567
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	568 for (my $i = 0; $i < $channels; $i++) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	569 my $idx = ($upsample) ? (($channels - $i) - 1) : $i;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	570 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	571 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	572 const $bigger sample${idx} = ($bigger) $val;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	573 EOF
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
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	576 my $incr = '';
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	577 if ($upsample) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	578 $incr = ($channels == 1) ? 'src--' : "src -= $channels";
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	579 } else {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	580 my $amount = $channels * $multiple;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	581 $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	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
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	585 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	586 $incr;
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	587 EOF
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	588
3008 786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	589 # !!! FIXME: This really begs for some Altivec or SSE, etc.
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	590 if ($upsample) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	591 if ($multiple == 2) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	592 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	593 my $dsti = $i + $channels;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	594 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	595 dst[$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	596 EOF
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	597 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	598 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	599 my $dsti = $i;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	600 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	601 dst[$dsti] = ($fctype) sample${i};
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	602 EOF
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	603 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	604 } elsif ($multiple == 4) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	605 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	606 my $dsti = $i + ($channels * 3);
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	607 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	608 dst[$dsti] = ($fctype) sample${i};
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	609 EOF
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
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	612 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	613 my $dsti = $i + ($channels * 2);
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	614 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	615 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	616 EOF
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
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	619 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	620 my $dsti = $i + ($channels * 1);
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	621 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	622 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	623 EOF
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
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	626 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	627 my $dsti = $i + ($channels * 0);
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	628 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	629 dst[$dsti] = ($fctype) ((sample${i} + ($mult3 * last_sample${i})) $interp2);
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	630 EOF
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	631 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	632 } else {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	633 die('bug in program.'); # we only handle x2 and x4.
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	634 }
3008 786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	635 } else { # downsample.
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	636 if ($multiple == 2) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	637 for (my $i = 0; $i < $channels; $i++) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	638 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	639 dst[$i] = ($fctype) ((sample${i} + last_sample${i}) $interp);
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	640 EOF
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	641 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	642 } elsif ($multiple == 4) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	643 # !!! FIXME: interpolate all 4 samples?
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	644 for (my $i = 0; $i < $channels; $i++) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	645 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	646 dst[$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	647 EOF
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	648 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	649 } else {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	650 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	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
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	654 for (my $i = 0; $i < $channels; $i++) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	655 my $idx = ($upsample) ? (($channels - $i) - 1) : $i;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	656 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	657 last_sample${idx} = sample${idx};
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	658 EOF
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	659 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	660
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	661 if ($upsample) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	662 my $amount = $channels * $multiple;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	663 $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	664 } else {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	665 $incr = ($channels == 1) ? 'dst++' : "dst += $channels";
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
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	668 print <<EOF;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	669 $incr;
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
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	672 cvt->len_cvt = dstsize;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	673 if (cvt->filters[++cvt->filter_index]) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	674 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	675 }
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	676 }
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	677
3008 786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	678 EOF
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
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	682 sub buildResamplers {
3019 dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	683 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	684 foreach (@audiotypes) {
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	685 my $from = $_;
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	686 foreach (@channels) {
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	687 my $channel = $_;
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	688 buildArbitraryResampleFunc($from, $channel, 1);
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	689 buildArbitraryResampleFunc($from, $channel, 0);
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
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	693 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	694 foreach (@audiotypes) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	695 my $from = $_;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	696 foreach (@channels) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	697 my $channel = $_;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	698 for (my $multiple = 2; $multiple <= 4; $multiple += 2) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	699 buildMultipleResampleFunc($from, $channel, 1, $multiple);
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	700 buildMultipleResampleFunc($from, $channel, 0, $multiple);
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 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	704
3019 dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	705 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	706 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	707
3008 786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	708 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	709 print "#if !NO_RESAMPLERS\n";
3008 786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	710 foreach (@audiotypes) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	711 my $from = $_;
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	712 foreach (@channels) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	713 my $channel = $_;
3019 dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	714 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	715 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	716 my $sym = $funcs{$hashid};
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	717 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	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
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	722 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	723 foreach (@audiotypes) {
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	724 my $from = $_;
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	725 foreach (@channels) {
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	726 my $channel = $_;
dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	727 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	728 for (my $upsample = 0; $upsample <= 1; $upsample++) {
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	729 my $hashid = getResamplerHashId($from, $channel, $upsample, $multiple);
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	730 my $sym = $funcs{$hashid};
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	731 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	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 }
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	736
3019 dfd23eb79be9 Allow builds that reduce or eliminate the converters/resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 3008 diff changeset	737 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	738 print "#endif /* !NO_RESAMPLERS */\n";
3020 70d876a0b90e NULL-terminate the lists of autogenerated converters. Ryan C. Gordon <icculus@icculus.org> parents: 3019 diff changeset	739 print(" { 0, 0, 0, 0, NULL }\n");
3008 786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	740 print "};\n\n";
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	741 }
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	742
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 # mainline ...
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	745
3008 786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	746 outputHeader();
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	747 buildTypeConverters();
786a48f8309c First shot at autogenerated audio resamplers. Ryan C. Gordon <icculus@icculus.org> parents: 2956 diff changeset	748 buildResamplers();
1985 8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1982 diff changeset	749 outputFooter();
8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1982 diff changeset	750
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	751 exit 0;
3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	752
1985 8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1982 diff changeset	753 # 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	754

Mercurial > sdl-ios-xcode

annotate src/audio/sdlgenaudiocvt.pl @ 3469:8c5fb2a3b11d