FGFS-4.1/simgear
3
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

create an absolute value before calling log or log10, this adds support for sound on negative numbers (thrust reverse for example).

Browse Source
This commit is contained in:
ehofman
2006-01-30 20:30:56 +00:00
parent 33f176b8f9
commit af15e73e64
1 changed files with 3 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
simgear/sound/xmlsound.cxx
View File

@@ -38,12 +38,13 @@
#include "xmlsound.hxx"
#define LOG_ABS(x) (((x) > 1) ? (x) : (((x) < -1) ? -(x) : 0))
// static double _snd_lin(double v) { return v; }
static double _snd_inv(double v) { return (v == 0) ? 1e99 : 1/v; }
static double _snd_abs(double v) { return (v >= 0) ? v : -v; }
static double _snd_sqrt(double v) { return (v < 0) ? sqrt(-v) : sqrt(v); }
static double _snd_log10(double v) { return (v < 1) ? 0 : fast_log10(v); }
static double _snd_log(double v) { return (v < 1) ? 0 : fast_log(v); }
static double _snd_log10(double v) { return fast_log10( LOG_ABS(v) ); }
static double _snd_log(double v) { return fast_log( LOG_ABS(v) ); }
// static double _snd_sqr(double v) { return v*v; }
// static double _snd_pow3(double v) { return v*v*v; }