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fluidsynth
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Return zero if both mod sources are NONE

This commit is contained in:
derselbst 2022-03-19 12:37:33 +01:00
parent ef1f409c5f
commit 35212c55b8
1 changed files with 7 additions and 9 deletions
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16
src/synth/fluid_mod.c
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@ -391,15 +391,21 @@ fluid_mod_transform_source_value(fluid_real_t val, unsigned char mod_flags, cons
* Output = Amount * Map(primary source input) * Map(secondary source input)
*
* 2) When a source is set to FLUID_MOD_NONE, its input value is treated as +1.0
* 3) When both sources are FLUID_MOD_NONE, zero is returned
*/
fluid_real_t
fluid_mod_get_value(fluid_mod_t *mod, fluid_voice_t *voice)
{
extern fluid_mod_t default_vel2filter_mod;
fluid_real_t v1, v2;
fluid_real_t v1 = 1.0f, v2 = 1.0f;
fluid_real_t range1 = 127.0, range2 = 127.0;
if(mod->src1 == FLUID_MOD_NONE || mod->src2 == FLUID_MOD_NONE)
{
return 0;
}
/* 'special treatment' for default controller
*
* Reference: SF2.01 section 8.4.2
@ -444,10 +450,6 @@ fluid_mod_get_value(fluid_mod_t *mod, fluid_voice_t *voice)
/* transform the input value */
v1 = fluid_mod_transform_source_value(v1, mod->flags1, range1);
}
else
{
v1 = 1.0f;
}
/* get the second input source */
if(mod->src2 > FLUID_MOD_NONE)
@ -457,10 +459,6 @@ fluid_mod_get_value(fluid_mod_t *mod, fluid_voice_t *voice)
/* transform the second input value */
v2 = fluid_mod_transform_source_value(v2, mod->flags2, range2);
}
else
{
v2 = 1.0f;
}
/* it's as simple as that: */
return (fluid_real_t) mod->amount * v1 * v2;