Mercurial > sdl-ios-xcode

annotate src/audio/sdlgenaudiocvt.pl @ 2375:58a120c0a0e5 gsoc2008_iphone

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Root directory for iPhone SDL Xcode projects.
author Holmes Futrell <hfutrell@umail.ucsb.edu>
date Fri, 18 Jul 2008 19:12:49 +0000
parents b2b7154ce016
children 99210400e8b9
rev   line source
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
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1 #!/usr/bin/perl -w
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2
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3 use warnings;
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4 use strict;
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5
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6 my @audiotypes = qw(
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7 U8
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8 S8
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9 U16LSB
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10 S16LSB
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11 U16MSB
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12 S16MSB
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13 S32LSB
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14 S32MSB
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15 F32LSB
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16 F32MSB
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17 );
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18
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19 my %funcs;
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20
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21 my $custom_converters = 0;
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22
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23
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24 sub outputHeader {
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25 print <<EOF;
1985
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1982
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26 /* DO NOT EDIT! This file is generated by sdlgenaudiocvt.pl */
1982
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27 /*
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28 SDL - Simple DirectMedia Layer
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29 Copyright (C) 1997-2006 Sam Lantinga
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30
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31 This library is free software; you can redistribute it and/or
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32 modify it under the terms of the GNU Lesser General Public
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33 License as published by the Free Software Foundation; either
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34 version 2.1 of the License, or (at your option) any later version.
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35
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36 This library is distributed in the hope that it will be useful,
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37 but WITHOUT ANY WARRANTY; without even the implied warranty of
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38 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
3b4ce57c6215 First shot at new audio data types (int32 and float32).
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39 Lesser General Public License for more details.
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40
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41 You should have received a copy of the GNU Lesser General Public
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42 License along with this library; if not, write to the Free Software
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43 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
3b4ce57c6215 First shot at new audio data types (int32 and float32).
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44
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45 Sam Lantinga
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46 slouken\@libsdl.org
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47 */
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48
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49 #include "SDL_config.h"
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50 #include "SDL_audio.h"
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51 #include "SDL_audio_c.h"
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52
1985
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1982
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53 /* *INDENT-OFF* */
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
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54
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55 EOF
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56
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b2b7154ce016 Fixed broken audio conversions between float and unsigned datatypes.
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parents: 1985
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57 my @vals = ( 127, 32767, 2147483647 );
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
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58 foreach (@vals) {
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59 my $val = $_;
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60 my $fval = 1.0 / $val;
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61 print("#define DIVBY${val} ${fval}f\n");
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62 }
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63
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64 print("\n");
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65 }
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66
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8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1982
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67 sub outputFooter {
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68 print <<EOF;
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69 /* *INDENT-ON* */
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70
8055185ae4ed Added source color and alpha modulation support.
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71 /* vi: set ts=4 sw=4 expandtab: */
8055185ae4ed Added source color and alpha modulation support.
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72 EOF
8055185ae4ed Added source color and alpha modulation support.
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parents: 1982
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73 }
1982
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74
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75 sub splittype {
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76 my $t = shift;
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77 my ($signed, $size, $endian) = $t =~ /([USF])(\d+)([LM]SB|)/;
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78 my $float = ($signed eq 'F') ? 1 : 0;
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79 $signed = (($float) or ($signed eq 'S')) ? 1 : 0;
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80 $endian = 'NONE' if ($endian eq '');
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81
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82 my $ctype = '';
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83 if ($float) {
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84 $ctype = (($size == 32) ? 'float' : 'double');
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85 } else {
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86 $ctype = (($signed) ? 'S' : 'U') . "int${size}";
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87 }
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88
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89 return ($signed, $float, $size, $endian, $ctype);
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90 }
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91
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92 sub getSwapFunc {
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93 my ($size, $signed, $float, $endian, $val) = @_;
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94 my $BEorLE = (($endian eq 'MSB') ? 'BE' : 'LE');
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95 my $code = '';
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96
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97 if ($float) {
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98 $code = "SDL_SwapFloat${BEorLE}($val)";
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99 } else {
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100 if ($size > 8) {
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101 $code = "SDL_Swap${BEorLE}${size}($val)";
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102 } else {
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103 $code = $val;
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104 }
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105
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106 if (($signed) and (!$float)) {
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107 $code = "((Sint${size}) $code)";
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108 }
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109 }
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110
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111 return "${code}";
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112 }
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113
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114
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115 sub maxIntVal {
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b2b7154ce016 Fixed broken audio conversions between float and unsigned datatypes.
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116 my $size = shift;
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117 if ($size == 8) {
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118 return 0x7F;
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119 } elsif ($size == 16) {
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120 return 0x7FFF;
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121 } elsif ($size == 32) {
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122 return 0x7FFFFFFF;
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123 }
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124
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125 die("bug in script.\n");
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126 }
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127
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128 sub getFloatToIntMult {
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b2b7154ce016 Fixed broken audio conversions between float and unsigned datatypes.
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129 my $size = shift;
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130 my $val = maxIntVal($size) . '.0';
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131 $val .= 'f' if ($size < 32);
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132 return $val;
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133 }
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134
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135 sub getIntToFloatDivBy {
2011
b2b7154ce016 Fixed broken audio conversions between float and unsigned datatypes.
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136 my $size = shift;
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parents: 1985
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137 return 'DIVBY' . maxIntVal($size);
1982
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138 }
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139
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140 sub getSignFlipVal {
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diff changeset
141 my $size = shift;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
142 if ($size == 8) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
143 return '0x80';
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
144 } elsif ($size == 16) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
145 return '0x8000';
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
146 } elsif ($size == 32) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
147 return '0x80000000';
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
148 }
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 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
151 }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
152
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
153 sub buildCvtFunc {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
154 my ($from, $to) = @_;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
155 my ($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
156 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
157 my $diffs = 0;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
158 $diffs++ if ($fsize != $tsize);
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
159 $diffs++ if ($fsigned != $tsigned);
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
160 $diffs++ if ($ffloat != $tfloat);
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
161 $diffs++ if ($fendian ne $tendian);
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
162
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
163 return if ($diffs == 0);
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 my $hashid = "$from/$to";
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
166 if (1) { # !!! FIXME: if ($diffs > 1) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
167 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
168 $funcs{$hashid} = $sym;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
169 $custom_converters++;
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 # 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
172 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
173
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
174 print <<EOF;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
175 static void SDLCALL
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
176 ${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
177 {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
178 int i;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
179 const $srctype *src;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
180 $tctype *dst;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
181
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
182 #ifdef DEBUG_CONVERT
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
183 fprintf(stderr, "Converting AUDIO_${from} to AUDIO_${to}.\\n");
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
184 #endif
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
185
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
186 EOF
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
187
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
188 if ($fsize < $tsize) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
189 my $mult = $tsize / $fsize;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
190 print <<EOF;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
191 src = (const $srctype *) (cvt->buf + cvt->len_cvt);
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
192 dst = ($tctype *) (cvt->buf + cvt->len_cvt * $mult);
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
193 for (i = cvt->len_cvt / sizeof ($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
194 EOF
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
195 } else {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
196 print <<EOF;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
197 src = (const $srctype *) cvt->buf;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
198 dst = ($tctype *) cvt->buf;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
199 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
200 EOF
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
201 }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
202
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
203 # 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
204 # !!! 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
205 my $code = getSwapFunc($fsize, $fsigned, $ffloat, $fendian, '*src');
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
206 if ($ffloat != $tfloat) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
207 if ($ffloat) {
2011
b2b7154ce016 Fixed broken audio conversions between float and unsigned datatypes.
Ryan C. Gordon <icculus@icculus.org>
parents: 1985
diff changeset
208 my $mult = getFloatToIntMult($tsize);
b2b7154ce016 Fixed broken audio conversions between float and unsigned datatypes.
Ryan C. Gordon <icculus@icculus.org>
parents: 1985
diff changeset
209 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
210 $code = "($code + 1.0f)";
b2b7154ce016 Fixed broken audio conversions between float and unsigned datatypes.
Ryan C. Gordon <icculus@icculus.org>
parents: 1985
diff changeset
211 }
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
212 $code = "(($tctype) ($code * $mult))";
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
213 } else {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
214 # $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
215 # 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
216 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
217 $code = "(((float) $code) * $divby)";
2011
b2b7154ce016 Fixed broken audio conversions between float and unsigned datatypes.
Ryan C. Gordon <icculus@icculus.org>
parents: 1985
diff changeset
218 if (!$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
219 $code = "($code - 1.0f)";
b2b7154ce016 Fixed broken audio conversions between float and unsigned datatypes.
Ryan C. Gordon <icculus@icculus.org>
parents: 1985
diff changeset
220 }
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
221 }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
222 } else {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
223 # All integer conversions here.
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
224 if ($fsigned != $tsigned) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
225 my $signflipval = getSignFlipVal($fsize);
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
226 $code = "(($code) ^ $signflipval)";
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
227 }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
228
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
229 my $shiftval = abs($fsize - $tsize);
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
230 if ($fsize < $tsize) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
231 $code = "((($tctype) $code) << $shiftval)";
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
232 } elsif ($fsize > $tsize) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
233 $code = "(($tctype) ($code >> $shiftval))";
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
234 }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
235 }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
236
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
237 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
238
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
239 print <<EOF;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
240 const $tctype val = $code;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
241 *dst = ${swap};
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
242 }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
243
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
244 EOF
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
245
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
246 if ($fsize > $tsize) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
247 my $divby = $fsize / $tsize;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
248 print(" cvt->len_cvt /= $divby;\n");
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
249 } elsif ($fsize < $tsize) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
250 my $mult = $tsize / $fsize;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
251 print(" cvt->len_cvt *= $mult;\n");
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
252 }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
253
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
254 print <<EOF;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
255 format = AUDIO_$to;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
256 if (cvt->filters[++cvt->filter_index]) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
257 cvt->filters[cvt->filter_index] (cvt, format);
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 }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
260
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
261 EOF
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
262
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
263 } else {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
264 if ($fsigned != $tsigned) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
265 $funcs{$hashid} = 'SDL_ConvertSigned';
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
266 } elsif ($ffloat != $tfloat) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
267 $funcs{$hashid} = 'SDL_ConvertFloat';
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
268 } elsif ($fsize != $tsize) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
269 $funcs{$hashid} = 'SDL_ConvertSize';
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
270 } elsif ($fendian ne $tendian) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
271 $funcs{$hashid} = 'SDL_ConvertEndian';
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
272 } else {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
273 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
274 }
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 }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
277
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278 outputHeader();
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279
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280 foreach (@audiotypes) {
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281 my $from = $_;
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282 foreach (@audiotypes) {
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283 my $to = $_;
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284 buildCvtFunc($from, $to);
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285 }
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286 }
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287
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288 print <<EOF;
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289 const SDL_AudioTypeFilters sdl_audio_type_filters[] =
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290 {
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291 EOF
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292
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293 foreach (@audiotypes) {
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294 my $from = $_;
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295 foreach (@audiotypes) {
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296 my $to = $_;
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297 if ($from ne $to) {
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298 my $hashid = "$from/$to";
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299 my $sym = $funcs{$hashid};
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300 print(" { AUDIO_$from, AUDIO_$to, $sym },\n");
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301 }
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302 }
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303 }
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304
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305 print <<EOF;
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306 };
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307
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308
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309 EOF
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310
1985
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1982
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311 outputFooter();
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1982
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312
1982
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313 exit 0;
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314
1985
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1982
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315 # end of sdlgenaudiocvt.pl ...
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
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316