fuse fluid_gen_set_default_values() and fluid_gen_init()

avoids iterating over generators twice

src/sfloader/fluid_defsfont.c

@@ -1099,7 +1099,7 @@ new_fluid_preset_zone(char *name)
     /* Flag all generators as unused (default, they will be set when they are found
      * in the sound font).
      * This also sets the generator values to default, but that is of no concern here.*/
-    fluid_gen_set_default_values(&zone->gen[0]);
+    fluid_gen_init(&zone->gen[0], NULL);
     zone->mod = NULL; /* list of modulators */
     return zone;
 }
@@ -1650,7 +1650,7 @@ new_fluid_inst_zone(char *name)
     zone->range.ignore = FALSE;
     /* Flag the generators as unused.
      * This also sets the generator values to default, but they will be overwritten anyway, if used.*/
-    fluid_gen_set_default_values(&zone->gen[0]);
+    fluid_gen_init(&zone->gen[0], NULL);
     zone->mod = NULL; /* list of modulators */
     return zone;
 }

src/synth/fluid_gen.c

@@ -92,14 +92,12 @@ static const fluid_gen_info_t fluid_gen_info[] =
     { GEN_CUSTOM_FILTERQ,         1,     1,       0.0f,    960.0f,       0.0f }
 };
 
-
-/**
- * Set an array of generators to their default values.
- * @param gen Array of generators (should be #GEN_LAST in size).
- * @return Always returns #FLUID_OK
+/* fluid_gen_init
+ *
+ * Set an array of generators to their initial value
  */
-int
-fluid_gen_set_default_values(fluid_gen_t *gen)
+void
+fluid_gen_init(fluid_gen_t *gen, fluid_channel_t *channel)
 {
     int i;
 
@@ -107,39 +105,17 @@ fluid_gen_set_default_values(fluid_gen_t *gen)
     {
         gen[i].flags = GEN_UNUSED;
         gen[i].mod = 0.0;
-        gen[i].nrpn = 0.0;
+        gen[i].nrpn = (channel == NULL) ? 0.0 : fluid_channel_get_gen(channel, i);
         gen[i].val = fluid_gen_info[i].def;
-    }
-
-    return FLUID_OK;
-}
-
-
-/* fluid_gen_init
- *
- * Set an array of generators to their initial value
- */
-int
-fluid_gen_init(fluid_gen_t *gen, fluid_channel_t *channel)
-{
-    int i;
-
-    fluid_gen_set_default_values(gen);
-
-    for(i = 0; i < GEN_LAST; i++)
-    {
-        gen[i].nrpn = fluid_channel_get_gen(channel, i);
 
         /* This is an extension to the SoundFont standard. More
          * documentation is available at the fluid_synth_set_gen2()
          * function. */
-        if(fluid_channel_get_gen_abs(channel, i))
+        if(channel != NULL && fluid_channel_get_gen_abs(channel, i))
         {
             gen[i].flags = GEN_ABS_NRPN;
         }
     }
-
-    return FLUID_OK;
 }
 
 fluid_real_t fluid_gen_scale(int gen, float value)

src/synth/fluid_gen.h

@@ -31,7 +31,7 @@ typedef struct _fluid_gen_info_t
     char nrpn_scale;	/* The scale to convert from NRPN (cfr. fluid_gen_map_nrpn()) */
     float min;		/* The minimum value */
     float max;		/* The maximum value */
-    float def;		/* The default value (cfr. fluid_gen_set_default_values()) */
+    float def;		/* The default value (cfr. fluid_gen_init()) */
 } fluid_gen_info_t;
 
 /*
@@ -60,8 +60,7 @@ enum fluid_gen_flags
 
 fluid_real_t fluid_gen_scale(int gen, float value);
 fluid_real_t fluid_gen_scale_nrpn(int gen, int nrpn);
-int fluid_gen_init(fluid_gen_t *gen, fluid_channel_t *channel);
-int fluid_gen_set_default_values(fluid_gen_t *gen);
+void fluid_gen_init(fluid_gen_t *gen, fluid_channel_t *channel);
 
 
 #endif /* _FLUID_GEN_H */

src/synth/fluid_voice.c

@@ -606,7 +606,7 @@ fluid_voice_calculate_runtime_synthesis_parameters(fluid_voice_t *voice)
      *  - Add the output value to the modulation value of the generator.
      *
      * Note: The generators have been initialized with
-     * fluid_gen_set_default_values.
+     * fluid_gen_init().
      */
 
     for(i = 0; i < voice->mod_count; i++)