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2nd part of FS#12176. Tempo setting migrated to fixed point for libgme.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30274 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Andree Buschmann 2011-08-09 20:21:55 +00:00
parent 964a5e6dfb
commit 012df14a5f
21 changed files with 71 additions and 69 deletions
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12
apps/codecs/libgme/hes_emu.c
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@ -49,7 +49,7 @@ void Hes_init( struct Hes_Emu* this )
{
this->sample_rate_ = 0;
this->mute_mask_ = 0;
this->tempo_ = 1.0;
this->tempo_ = (int)(FP_ONE_TEMPO);
// defaults
this->max_initial_silence = 2;
@ -544,15 +544,15 @@ void Sound_mute_voices( struct Hes_Emu* this, int mask )
}
}
void Sound_set_tempo( struct Hes_Emu* this, double t )
void Sound_set_tempo( struct Hes_Emu* this, int t )
{
require( this->sample_rate_ ); // sample rate must be set first
double const min = 0.02;
double const max = 4.00;
int const min = (int)(FP_ONE_TEMPO*0.02);
int const max = (int)(FP_ONE_TEMPO*4.00);
if ( t < min ) t = min;
if ( t > max ) t = max;
this->play_period = (hes_time_t) (period_60hz / t);
this->timer_base = (int) (1024 / t);
this->play_period = (hes_time_t) ((period_60hz*FP_ONE_TEMPO) / t);
this->timer_base = (int) ((1024*FP_ONE_TEMPO) / t);
recalc_timer_load( this );
this->tempo_ = t;
}