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simple-tone: use integer mod not fmod

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This commit is contained in:
Kamal Mostafa 2012-08-15 16:57:39 -07:00
parent c039dad33a
commit 6ee10626c9
1 changed files with 4 additions and 6 deletions
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10
src/simple-tone-generator.c
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@ -68,9 +68,8 @@ simpleaudio_tone_init( unsigned int new_sin_table_len )
static inline short static inline short
sin_lu_short( float turns ) sin_lu_short( float turns )
{ {
turns = fmodf(turns, 1.0); int t = (float)sin_table_len * turns + 0.5f;
int t = (float)sin_table_len * turns; t %= sin_table_len;
// assert ( t >= 0 && t < sin_table_len );
return sin_table_short[t]; return sin_table_short[t];
} }
@ -80,9 +79,8 @@ sin_lu_short( float turns )
static inline float static inline float
sin_lu_float( float turns ) sin_lu_float( float turns )
{ {
turns = fmodf(turns, 1.0); int t = (float)sin_table_len * turns + 0.5f;
int t = (float)sin_table_len * turns; t %= sin_table_len;
// assert ( t >= 0 && t < sin_table_len );
return sin_table_float[t]; return sin_table_float[t];
} }