823 lines
27 KiB
C
823 lines
27 KiB
C
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#include "config.h"
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#include <stdlib.h>
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#include <string.h>
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#include <limits.h>
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#include "midi/base.h"
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#include "alMain.h"
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#include "alError.h"
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#include "alMidi.h"
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#include "evtqueue.h"
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#include "rwlock.h"
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#include "alu.h"
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#ifdef HAVE_FLUIDSYNTH
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#include <fluidsynth.h>
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/* MIDI events */
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#define SYSEX_EVENT (0xF0)
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/* MIDI controllers */
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#define CTRL_BANKSELECT_MSB (0)
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#define CTRL_BANKSELECT_LSB (32)
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#define CTRL_ALLNOTESOFF (123)
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static int getGenInput(ALenum input)
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{
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switch(input)
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{
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case AL_ONE_SOFT: return FLUID_MOD_NONE;
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case AL_NOTEON_VELOCITY_SOFT: return FLUID_MOD_VELOCITY;
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case AL_NOTEON_KEY_SOFT: return FLUID_MOD_KEY;
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case AL_KEYPRESSURE_SOFT: return FLUID_MOD_KEYPRESSURE;
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case AL_CHANNELPRESSURE_SOFT: return FLUID_MOD_CHANNELPRESSURE;
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case AL_PITCHBEND_SOFT: return FLUID_MOD_PITCHWHEEL;
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case AL_PITCHBEND_SENSITIVITY_SOFT: return FLUID_MOD_PITCHWHEELSENS;
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}
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return input&0x7F;
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}
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static int getGenFlags(ALenum input, ALenum type, ALenum form)
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{
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int ret = 0;
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switch(type)
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{
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case AL_UNORM_SOFT: ret |= FLUID_MOD_UNIPOLAR | FLUID_MOD_POSITIVE; break;
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case AL_UNORM_REV_SOFT: ret |= FLUID_MOD_UNIPOLAR | FLUID_MOD_NEGATIVE; break;
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case AL_SNORM_SOFT: ret |= FLUID_MOD_BIPOLAR | FLUID_MOD_POSITIVE; break;
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case AL_SNORM_REV_SOFT: ret |= FLUID_MOD_BIPOLAR | FLUID_MOD_NEGATIVE; break;
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}
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switch(form)
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{
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case AL_LINEAR_SOFT: ret |= FLUID_MOD_LINEAR; break;
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case AL_CONCAVE_SOFT: ret |= FLUID_MOD_CONCAVE; break;
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case AL_CONVEX_SOFT: ret |= FLUID_MOD_CONVEX; break;
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case AL_SWITCH_SOFT: ret |= FLUID_MOD_SWITCH; break;
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}
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/* Source input values less than 128 correspond to a MIDI continuous
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* controller. Otherwise, it's a general controller. */
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if(input < 128) ret |= FLUID_MOD_CC;
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else ret |= FLUID_MOD_GC;
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return ret;
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}
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static enum fluid_gen_type getSf2Gen(ALenum gen)
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{
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switch(gen)
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{
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case AL_MOD_LFO_TO_PITCH_SOFT: return GEN_MODLFOTOPITCH;
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case AL_VIBRATO_LFO_TO_PITCH_SOFT: return GEN_VIBLFOTOPITCH;
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case AL_MOD_ENV_TO_PITCH_SOFT: return GEN_MODENVTOPITCH;
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case AL_FILTER_CUTOFF_SOFT: return GEN_FILTERFC;
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case AL_FILTER_RESONANCE_SOFT: return GEN_FILTERQ;
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case AL_MOD_LFO_TO_FILTER_CUTOFF_SOFT: return GEN_MODLFOTOFILTERFC;
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case AL_MOD_ENV_TO_FILTER_CUTOFF_SOFT: return GEN_MODENVTOFILTERFC;
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case AL_MOD_LFO_TO_VOLUME_SOFT: return GEN_MODLFOTOVOL;
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case AL_CHORUS_SEND_SOFT: return GEN_CHORUSSEND;
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case AL_REVERB_SEND_SOFT: return GEN_REVERBSEND;
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case AL_PAN_SOFT: return GEN_PAN;
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case AL_MOD_LFO_DELAY_SOFT: return GEN_MODLFODELAY;
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case AL_MOD_LFO_FREQUENCY_SOFT: return GEN_MODLFOFREQ;
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case AL_VIBRATO_LFO_DELAY_SOFT: return GEN_VIBLFODELAY;
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case AL_VIBRATO_LFO_FREQUENCY_SOFT: return GEN_VIBLFOFREQ;
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case AL_MOD_ENV_DELAYTIME_SOFT: return GEN_MODENVDELAY;
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case AL_MOD_ENV_ATTACKTIME_SOFT: return GEN_MODENVATTACK;
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case AL_MOD_ENV_HOLDTIME_SOFT: return GEN_MODENVHOLD;
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case AL_MOD_ENV_DECAYTIME_SOFT: return GEN_MODENVDECAY;
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case AL_MOD_ENV_SUSTAINVOLUME_SOFT: return GEN_MODENVSUSTAIN;
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case AL_MOD_ENV_RELEASETIME_SOFT: return GEN_MODENVRELEASE;
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case AL_MOD_ENV_KEY_TO_HOLDTIME_SOFT: return GEN_KEYTOMODENVHOLD;
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case AL_MOD_ENV_KEY_TO_DECAYTIME_SOFT: return GEN_KEYTOMODENVDECAY;
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case AL_VOLUME_ENV_DELAYTIME_SOFT: return GEN_VOLENVDELAY;
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case AL_VOLUME_ENV_ATTACKTIME_SOFT: return GEN_VOLENVATTACK;
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case AL_VOLUME_ENV_HOLDTIME_SOFT: return GEN_VOLENVHOLD;
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case AL_VOLUME_ENV_DECAYTIME_SOFT: return GEN_VOLENVDECAY;
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case AL_VOLUME_ENV_SUSTAINVOLUME_SOFT: return GEN_VOLENVSUSTAIN;
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case AL_VOLUME_ENV_RELEASETIME_SOFT: return GEN_VOLENVRELEASE;
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case AL_VOLUME_ENV_KEY_TO_HOLDTIME_SOFT: return GEN_KEYTOVOLENVHOLD;
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case AL_VOLUME_ENV_KEY_TO_DECAYTIME_SOFT: return GEN_KEYTOVOLENVDECAY;
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case AL_ATTENUATION_SOFT: return GEN_ATTENUATION;
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case AL_TUNING_COARSE_SOFT: return GEN_COARSETUNE;
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case AL_TUNING_FINE_SOFT: return GEN_FINETUNE;
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case AL_TUNING_SCALE_SOFT: return GEN_SCALETUNE;
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}
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ERR("Unhandled generator: 0x%04x\n", gen);
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return 0;
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}
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static int getSf2LoopMode(ALenum mode)
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{
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switch(mode)
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{
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case AL_NONE: return 0;
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case AL_LOOP_CONTINUOUS_SOFT: return 1;
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case AL_LOOP_UNTIL_RELEASE_SOFT: return 3;
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}
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return 0;
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}
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static int getSampleType(ALenum type)
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{
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switch(type)
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{
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case AL_MONO_SOFT: return FLUID_SAMPLETYPE_MONO;
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case AL_RIGHT_SOFT: return FLUID_SAMPLETYPE_RIGHT;
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case AL_LEFT_SOFT: return FLUID_SAMPLETYPE_LEFT;
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}
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return FLUID_SAMPLETYPE_MONO;
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}
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typedef struct FSample {
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DERIVE_FROM_TYPE(fluid_sample_t);
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ALfontsound *Sound;
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fluid_mod_t *Mods;
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ALsizei NumMods;
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} FSample;
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static void FSample_Construct(FSample *self, ALfontsound *sound, ALsoundfont *sfont)
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{
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fluid_sample_t *sample = STATIC_CAST(fluid_sample_t, self);
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memset(sample->name, 0, sizeof(sample->name));
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sample->start = sound->Start;
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sample->end = sound->End;
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sample->loopstart = sound->LoopStart;
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sample->loopend = sound->LoopEnd;
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sample->samplerate = sound->SampleRate;
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sample->origpitch = sound->PitchKey;
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sample->pitchadj = sound->PitchCorrection;
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sample->sampletype = getSampleType(sound->SampleType);
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sample->valid = 1;
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sample->data = sfont->Samples;
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sample->amplitude_that_reaches_noise_floor_is_valid = 0;
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sample->amplitude_that_reaches_noise_floor = 0.0;
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sample->refcount = 0;
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sample->notify = NULL;
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sample->userdata = self;
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self->Sound = sound;
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self->NumMods = 0;
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self->Mods = calloc(sound->ModulatorMap.size, sizeof(self->Mods[0]));
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if(self->Mods)
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{
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ALsizei i;
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self->NumMods = sound->ModulatorMap.size;
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for(i = 0;i < self->NumMods;i++)
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{
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ALsfmodulator *mod = sound->ModulatorMap.array[i].value;
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fluid_mod_set_source1(&self->Mods[i], getGenInput(mod->Source[0].Input),
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getGenFlags(mod->Source[0].Input, mod->Source[0].Type,
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mod->Source[0].Form));
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fluid_mod_set_source2(&self->Mods[i], getGenInput(mod->Source[1].Input),
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getGenFlags(mod->Source[1].Input, mod->Source[1].Type,
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mod->Source[1].Form));
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fluid_mod_set_amount(&self->Mods[i], mod->Amount);
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fluid_mod_set_dest(&self->Mods[i], getSf2Gen(mod->Dest));
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self->Mods[i].next = NULL;
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}
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}
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}
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static void FSample_Destruct(FSample *self)
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{
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free(self->Mods);
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self->Mods = NULL;
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self->NumMods = 0;
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}
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typedef struct FPreset {
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DERIVE_FROM_TYPE(fluid_preset_t);
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char Name[16];
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int Preset;
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int Bank;
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FSample *Samples;
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ALsizei NumSamples;
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} FPreset;
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static char* FPreset_getName(fluid_preset_t *preset);
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static int FPreset_getPreset(fluid_preset_t *preset);
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static int FPreset_getBank(fluid_preset_t *preset);
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static int FPreset_noteOn(fluid_preset_t *preset, fluid_synth_t *synth, int channel, int key, int velocity);
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static void FPreset_Construct(FPreset *self, ALsfpreset *preset, fluid_sfont_t *parent, ALsoundfont *sfont)
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{
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STATIC_CAST(fluid_preset_t, self)->data = self;
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STATIC_CAST(fluid_preset_t, self)->sfont = parent;
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STATIC_CAST(fluid_preset_t, self)->free = NULL;
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STATIC_CAST(fluid_preset_t, self)->get_name = FPreset_getName;
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STATIC_CAST(fluid_preset_t, self)->get_banknum = FPreset_getBank;
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STATIC_CAST(fluid_preset_t, self)->get_num = FPreset_getPreset;
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STATIC_CAST(fluid_preset_t, self)->noteon = FPreset_noteOn;
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STATIC_CAST(fluid_preset_t, self)->notify = NULL;
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memset(self->Name, 0, sizeof(self->Name));
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self->Preset = preset->Preset;
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self->Bank = preset->Bank;
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self->NumSamples = 0;
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self->Samples = calloc(1, preset->NumSounds * sizeof(self->Samples[0]));
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if(self->Samples)
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{
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ALsizei i;
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self->NumSamples = preset->NumSounds;
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for(i = 0;i < self->NumSamples;i++)
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FSample_Construct(&self->Samples[i], preset->Sounds[i], sfont);
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}
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}
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static void FPreset_Destruct(FPreset *self)
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{
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ALsizei i;
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for(i = 0;i < self->NumSamples;i++)
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FSample_Destruct(&self->Samples[i]);
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free(self->Samples);
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self->Samples = NULL;
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self->NumSamples = 0;
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}
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static ALboolean FPreset_canDelete(FPreset *self)
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{
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ALsizei i;
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for(i = 0;i < self->NumSamples;i++)
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{
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if(fluid_sample_refcount(STATIC_CAST(fluid_sample_t, &self->Samples[i])) != 0)
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return AL_FALSE;
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}
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return AL_TRUE;
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}
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static char* FPreset_getName(fluid_preset_t *preset)
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{
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return ((FPreset*)preset->data)->Name;
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}
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static int FPreset_getPreset(fluid_preset_t *preset)
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{
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return ((FPreset*)preset->data)->Preset;
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}
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static int FPreset_getBank(fluid_preset_t *preset)
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{
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return ((FPreset*)preset->data)->Bank;
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}
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static int FPreset_noteOn(fluid_preset_t *preset, fluid_synth_t *synth, int channel, int key, int vel)
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{
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FPreset *self = ((FPreset*)preset->data);
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ALsizei i;
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for(i = 0;i < self->NumSamples;i++)
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{
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FSample *sample = &self->Samples[i];
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ALfontsound *sound = sample->Sound;
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fluid_voice_t *voice;
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ALsizei m;
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if(!(key >= sound->MinKey && key <= sound->MaxKey && vel >= sound->MinVelocity && vel <= sound->MaxVelocity))
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continue;
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voice = fluid_synth_alloc_voice(synth, STATIC_CAST(fluid_sample_t, sample), channel, key, vel);
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if(voice == NULL)
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return FLUID_FAILED;
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fluid_voice_gen_set(voice, GEN_MODLFOTOPITCH, sound->ModLfoToPitch);
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fluid_voice_gen_set(voice, GEN_VIBLFOTOPITCH, sound->VibratoLfoToPitch);
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fluid_voice_gen_set(voice, GEN_MODENVTOPITCH, sound->ModEnvToPitch);
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fluid_voice_gen_set(voice, GEN_FILTERFC, sound->FilterCutoff);
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fluid_voice_gen_set(voice, GEN_FILTERQ, sound->FilterQ);
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fluid_voice_gen_set(voice, GEN_MODLFOTOFILTERFC, sound->ModLfoToFilterCutoff);
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fluid_voice_gen_set(voice, GEN_MODENVTOFILTERFC, sound->ModEnvToFilterCutoff);
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fluid_voice_gen_set(voice, GEN_MODLFOTOVOL, sound->ModLfoToVolume);
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fluid_voice_gen_set(voice, GEN_CHORUSSEND, sound->ChorusSend);
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fluid_voice_gen_set(voice, GEN_REVERBSEND, sound->ReverbSend);
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fluid_voice_gen_set(voice, GEN_PAN, sound->Pan);
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fluid_voice_gen_set(voice, GEN_MODLFODELAY, sound->ModLfo.Delay);
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fluid_voice_gen_set(voice, GEN_MODLFOFREQ, sound->ModLfo.Frequency);
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fluid_voice_gen_set(voice, GEN_VIBLFODELAY, sound->VibratoLfo.Delay);
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fluid_voice_gen_set(voice, GEN_VIBLFOFREQ, sound->VibratoLfo.Frequency);
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fluid_voice_gen_set(voice, GEN_MODENVDELAY, sound->ModEnv.DelayTime);
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fluid_voice_gen_set(voice, GEN_MODENVATTACK, sound->ModEnv.AttackTime);
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fluid_voice_gen_set(voice, GEN_MODENVHOLD, sound->ModEnv.HoldTime);
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fluid_voice_gen_set(voice, GEN_MODENVDECAY, sound->ModEnv.DecayTime);
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fluid_voice_gen_set(voice, GEN_MODENVSUSTAIN, sound->ModEnv.SustainAttn);
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fluid_voice_gen_set(voice, GEN_MODENVRELEASE, sound->ModEnv.ReleaseTime);
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fluid_voice_gen_set(voice, GEN_KEYTOMODENVHOLD, sound->ModEnv.KeyToHoldTime);
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fluid_voice_gen_set(voice, GEN_KEYTOMODENVDECAY, sound->ModEnv.KeyToDecayTime);
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fluid_voice_gen_set(voice, GEN_VOLENVDELAY, sound->VolEnv.DelayTime);
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fluid_voice_gen_set(voice, GEN_VOLENVATTACK, sound->VolEnv.AttackTime);
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fluid_voice_gen_set(voice, GEN_VOLENVHOLD, sound->VolEnv.HoldTime);
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fluid_voice_gen_set(voice, GEN_VOLENVDECAY, sound->VolEnv.DecayTime);
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fluid_voice_gen_set(voice, GEN_VOLENVSUSTAIN, sound->VolEnv.SustainAttn);
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fluid_voice_gen_set(voice, GEN_VOLENVRELEASE, sound->VolEnv.ReleaseTime);
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fluid_voice_gen_set(voice, GEN_KEYTOVOLENVHOLD, sound->VolEnv.KeyToHoldTime);
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fluid_voice_gen_set(voice, GEN_KEYTOVOLENVDECAY, sound->VolEnv.KeyToDecayTime);
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fluid_voice_gen_set(voice, GEN_ATTENUATION, sound->Attenuation);
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fluid_voice_gen_set(voice, GEN_COARSETUNE, sound->CoarseTuning);
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fluid_voice_gen_set(voice, GEN_FINETUNE, sound->FineTuning);
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fluid_voice_gen_set(voice, GEN_SAMPLEMODE, getSf2LoopMode(sound->LoopMode));
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fluid_voice_gen_set(voice, GEN_SCALETUNE, sound->TuningScale);
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fluid_voice_gen_set(voice, GEN_EXCLUSIVECLASS, sound->ExclusiveClass);
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for(m = 0;m < sample->NumMods;m++)
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fluid_voice_add_mod(voice, &sample->Mods[m], FLUID_VOICE_OVERWRITE);
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fluid_synth_start_voice(synth, voice);
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}
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return FLUID_OK;
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}
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typedef struct FSfont {
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DERIVE_FROM_TYPE(fluid_sfont_t);
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char Name[16];
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FPreset *Presets;
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ALsizei NumPresets;
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ALsizei CurrentPos;
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} FSfont;
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static int FSfont_free(fluid_sfont_t *sfont);
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static char* FSfont_getName(fluid_sfont_t *sfont);
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static fluid_preset_t* FSfont_getPreset(fluid_sfont_t *sfont, unsigned int bank, unsigned int prenum);
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static void FSfont_iterStart(fluid_sfont_t *sfont);
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static int FSfont_iterNext(fluid_sfont_t *sfont, fluid_preset_t *preset);
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static void FSfont_Construct(FSfont *self, ALsoundfont *sfont)
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{
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STATIC_CAST(fluid_sfont_t, self)->data = self;
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STATIC_CAST(fluid_sfont_t, self)->id = FLUID_FAILED;
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STATIC_CAST(fluid_sfont_t, self)->free = FSfont_free;
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STATIC_CAST(fluid_sfont_t, self)->get_name = FSfont_getName;
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STATIC_CAST(fluid_sfont_t, self)->get_preset = FSfont_getPreset;
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STATIC_CAST(fluid_sfont_t, self)->iteration_start = FSfont_iterStart;
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STATIC_CAST(fluid_sfont_t, self)->iteration_next = FSfont_iterNext;
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memset(self->Name, 0, sizeof(self->Name));
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self->CurrentPos = 0;
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self->NumPresets = 0;
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self->Presets = calloc(1, sfont->NumPresets * sizeof(self->Presets[0]));
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if(self->Presets)
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{
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ALsizei i;
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self->NumPresets = sfont->NumPresets;
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for(i = 0;i < self->NumPresets;i++)
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FPreset_Construct(&self->Presets[i], sfont->Presets[i], STATIC_CAST(fluid_sfont_t, self), sfont);
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}
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}
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static void FSfont_Destruct(FSfont *self)
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{
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ALsizei i;
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for(i = 0;i < self->NumPresets;i++)
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FPreset_Destruct(&self->Presets[i]);
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free(self->Presets);
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self->Presets = NULL;
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self->NumPresets = 0;
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self->CurrentPos = 0;
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}
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static int FSfont_free(fluid_sfont_t *sfont)
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{
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FSfont *self = STATIC_UPCAST(FSfont, fluid_sfont_t, sfont);
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ALsizei i;
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for(i = 0;i < self->NumPresets;i++)
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{
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if(!FPreset_canDelete(&self->Presets[i]))
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return 1;
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}
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FSfont_Destruct(self);
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free(self);
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return 0;
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}
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static char* FSfont_getName(fluid_sfont_t *sfont)
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{
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return STATIC_UPCAST(FSfont, fluid_sfont_t, sfont)->Name;
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|
}
|
|
|
|
static fluid_preset_t *FSfont_getPreset(fluid_sfont_t *sfont, unsigned int bank, unsigned int prenum)
|
|
{
|
|
FSfont *self = STATIC_UPCAST(FSfont, fluid_sfont_t, sfont);
|
|
ALsizei i;
|
|
|
|
for(i = 0;i < self->NumPresets;i++)
|
|
{
|
|
FPreset *preset = &self->Presets[i];
|
|
if(preset->Bank == (int)bank && preset->Preset == (int)prenum)
|
|
return STATIC_CAST(fluid_preset_t, preset);
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static void FSfont_iterStart(fluid_sfont_t *sfont)
|
|
{
|
|
STATIC_UPCAST(FSfont, fluid_sfont_t, sfont)->CurrentPos = 0;
|
|
}
|
|
|
|
static int FSfont_iterNext(fluid_sfont_t *sfont, fluid_preset_t *preset)
|
|
{
|
|
FSfont *self = STATIC_UPCAST(FSfont, fluid_sfont_t, sfont);
|
|
if(self->CurrentPos >= self->NumPresets)
|
|
return 0;
|
|
*preset = *STATIC_CAST(fluid_preset_t, &self->Presets[self->CurrentPos++]);
|
|
preset->free = NULL;
|
|
return 1;
|
|
}
|
|
|
|
|
|
typedef struct FSynth {
|
|
DERIVE_FROM_TYPE(MidiSynth);
|
|
DERIVE_FROM_TYPE(fluid_sfloader_t);
|
|
|
|
fluid_settings_t *Settings;
|
|
fluid_synth_t *Synth;
|
|
int *FontIDs;
|
|
ALsizei NumFontIDs;
|
|
|
|
ALboolean ForceGM2BankSelect;
|
|
ALfloat GainScale;
|
|
} FSynth;
|
|
|
|
static void FSynth_Construct(FSynth *self, ALCdevice *device);
|
|
static void FSynth_Destruct(FSynth *self);
|
|
static ALboolean FSynth_init(FSynth *self, ALCdevice *device);
|
|
static ALenum FSynth_selectSoundfonts(FSynth *self, ALCcontext *context, ALsizei count, const ALuint *ids);
|
|
static void FSynth_setGain(FSynth *self, ALfloat gain);
|
|
static void FSynth_stop(FSynth *self);
|
|
static void FSynth_reset(FSynth *self);
|
|
static void FSynth_update(FSynth *self, ALCdevice *device);
|
|
static void FSynth_processQueue(FSynth *self, ALuint64 time);
|
|
static void FSynth_process(FSynth *self, ALuint SamplesToDo, ALfloat (*restrict DryBuffer)[BUFFERSIZE]);
|
|
DECLARE_DEFAULT_ALLOCATORS(FSynth)
|
|
DEFINE_MIDISYNTH_VTABLE(FSynth);
|
|
|
|
static fluid_sfont_t *FSynth_loadSfont(fluid_sfloader_t *loader, const char *filename);
|
|
|
|
|
|
static void FSynth_Construct(FSynth *self, ALCdevice *device)
|
|
{
|
|
MidiSynth_Construct(STATIC_CAST(MidiSynth, self), device);
|
|
SET_VTABLE2(FSynth, MidiSynth, self);
|
|
|
|
STATIC_CAST(fluid_sfloader_t, self)->data = self;
|
|
STATIC_CAST(fluid_sfloader_t, self)->free = NULL;
|
|
STATIC_CAST(fluid_sfloader_t, self)->load = FSynth_loadSfont;
|
|
|
|
self->Settings = NULL;
|
|
self->Synth = NULL;
|
|
self->FontIDs = NULL;
|
|
self->NumFontIDs = 0;
|
|
self->ForceGM2BankSelect = AL_FALSE;
|
|
self->GainScale = 0.2f;
|
|
}
|
|
|
|
static void FSynth_Destruct(FSynth *self)
|
|
{
|
|
ALsizei i;
|
|
|
|
for(i = 0;i < self->NumFontIDs;i++)
|
|
fluid_synth_sfunload(self->Synth, self->FontIDs[i], 0);
|
|
free(self->FontIDs);
|
|
self->FontIDs = NULL;
|
|
self->NumFontIDs = 0;
|
|
|
|
if(self->Synth != NULL)
|
|
delete_fluid_synth(self->Synth);
|
|
self->Synth = NULL;
|
|
|
|
if(self->Settings != NULL)
|
|
delete_fluid_settings(self->Settings);
|
|
self->Settings = NULL;
|
|
|
|
MidiSynth_Destruct(STATIC_CAST(MidiSynth, self));
|
|
}
|
|
|
|
static ALboolean FSynth_init(FSynth *self, ALCdevice *device)
|
|
{
|
|
ALfloat vol;
|
|
|
|
if(ConfigValueFloat("midi", "volume", &vol))
|
|
{
|
|
if(!(vol <= 0.0f))
|
|
{
|
|
ERR("MIDI volume %f clamped to 0\n", vol);
|
|
vol = 0.0f;
|
|
}
|
|
self->GainScale = powf(10.0f, vol / 20.0f);
|
|
}
|
|
|
|
self->Settings = new_fluid_settings();
|
|
if(!self->Settings)
|
|
{
|
|
ERR("Failed to create FluidSettings\n");
|
|
return AL_FALSE;
|
|
}
|
|
|
|
fluid_settings_setint(self->Settings, "synth.polyphony", 256);
|
|
fluid_settings_setnum(self->Settings, "synth.gain", self->GainScale);
|
|
fluid_settings_setnum(self->Settings, "synth.sample-rate", device->Frequency);
|
|
|
|
self->Synth = new_fluid_synth(self->Settings);
|
|
if(!self->Synth)
|
|
{
|
|
ERR("Failed to create FluidSynth\n");
|
|
return AL_FALSE;
|
|
}
|
|
|
|
fluid_synth_add_sfloader(self->Synth, STATIC_CAST(fluid_sfloader_t, self));
|
|
|
|
return AL_TRUE;
|
|
}
|
|
|
|
|
|
static fluid_sfont_t *FSynth_loadSfont(fluid_sfloader_t *loader, const char *filename)
|
|
{
|
|
FSynth *self = STATIC_UPCAST(FSynth, fluid_sfloader_t, loader);
|
|
FSfont *sfont;
|
|
int idx;
|
|
|
|
if(!filename || sscanf(filename, "_al_internal %d", &idx) != 1)
|
|
return NULL;
|
|
if(idx < 0 || idx >= STATIC_CAST(MidiSynth, self)->NumSoundfonts)
|
|
{
|
|
ERR("Received invalid soundfont index %d (max: %d)\n", idx, STATIC_CAST(MidiSynth, self)->NumSoundfonts);
|
|
return NULL;
|
|
}
|
|
|
|
sfont = calloc(1, sizeof(sfont[0]));
|
|
if(!sfont) return NULL;
|
|
|
|
FSfont_Construct(sfont, STATIC_CAST(MidiSynth, self)->Soundfonts[idx]);
|
|
return STATIC_CAST(fluid_sfont_t, sfont);
|
|
}
|
|
|
|
static ALenum FSynth_selectSoundfonts(FSynth *self, ALCcontext *context, ALsizei count, const ALuint *ids)
|
|
{
|
|
int *fontid;
|
|
ALenum ret;
|
|
ALsizei i;
|
|
|
|
ret = MidiSynth_selectSoundfonts(STATIC_CAST(MidiSynth, self), context, count, ids);
|
|
if(ret != AL_NO_ERROR) return ret;
|
|
|
|
ALCdevice_Lock(context->Device);
|
|
for(i = 0;i < 16;i++)
|
|
fluid_synth_all_sounds_off(self->Synth, i);
|
|
ALCdevice_Unlock(context->Device);
|
|
|
|
fontid = malloc(count * sizeof(fontid[0]));
|
|
if(fontid)
|
|
{
|
|
for(i = 0;i < STATIC_CAST(MidiSynth, self)->NumSoundfonts;i++)
|
|
{
|
|
char name[16];
|
|
snprintf(name, sizeof(name), "_al_internal %d", i);
|
|
|
|
fontid[i] = fluid_synth_sfload(self->Synth, name, 0);
|
|
if(fontid[i] == FLUID_FAILED)
|
|
ERR("Failed to load selected soundfont %d\n", i);
|
|
}
|
|
|
|
fontid = ExchangePtr((XchgPtr*)&self->FontIDs, fontid);
|
|
count = ExchangeInt(&self->NumFontIDs, count);
|
|
}
|
|
else
|
|
{
|
|
ERR("Failed to allocate space for %d font IDs!\n", count);
|
|
fontid = ExchangePtr((XchgPtr*)&self->FontIDs, NULL);
|
|
count = ExchangeInt(&self->NumFontIDs, 0);
|
|
}
|
|
|
|
for(i = 0;i < count;i++)
|
|
fluid_synth_sfunload(self->Synth, fontid[i], 0);
|
|
free(fontid);
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
static void FSynth_setGain(FSynth *self, ALfloat gain)
|
|
{
|
|
fluid_settings_setnum(self->Settings, "synth.gain", self->GainScale * gain);
|
|
fluid_synth_set_gain(self->Synth, self->GainScale * gain);
|
|
MidiSynth_setGain(STATIC_CAST(MidiSynth, self), gain);
|
|
}
|
|
|
|
|
|
static void FSynth_stop(FSynth *self)
|
|
{
|
|
MidiSynth *synth = STATIC_CAST(MidiSynth, self);
|
|
ALuint64 curtime;
|
|
ALsizei chan;
|
|
|
|
/* Make sure all pending events are processed. */
|
|
curtime = MidiSynth_getTime(synth);
|
|
FSynth_processQueue(self, curtime);
|
|
|
|
/* All notes off */
|
|
for(chan = 0;chan < 16;chan++)
|
|
fluid_synth_cc(self->Synth, chan, CTRL_ALLNOTESOFF, 0);
|
|
|
|
MidiSynth_stop(STATIC_CAST(MidiSynth, self));
|
|
}
|
|
|
|
static void FSynth_reset(FSynth *self)
|
|
{
|
|
/* Reset to power-up status. */
|
|
fluid_synth_system_reset(self->Synth);
|
|
|
|
MidiSynth_reset(STATIC_CAST(MidiSynth, self));
|
|
}
|
|
|
|
|
|
static void FSynth_update(FSynth *self, ALCdevice *device)
|
|
{
|
|
fluid_settings_setnum(self->Settings, "synth.sample-rate", device->Frequency);
|
|
fluid_synth_set_sample_rate(self->Synth, device->Frequency);
|
|
MidiSynth_update(STATIC_CAST(MidiSynth, self), device);
|
|
}
|
|
|
|
|
|
static void FSynth_processQueue(FSynth *self, ALuint64 time)
|
|
{
|
|
EvtQueue *queue = &STATIC_CAST(MidiSynth, self)->EventQueue;
|
|
|
|
while(queue->pos < queue->size && queue->events[queue->pos].time <= time)
|
|
{
|
|
const MidiEvent *evt = &queue->events[queue->pos];
|
|
|
|
if(evt->event == SYSEX_EVENT)
|
|
{
|
|
static const ALbyte gm2_on[] = { 0x7E, 0x7F, 0x09, 0x03 };
|
|
static const ALbyte gm2_off[] = { 0x7E, 0x7F, 0x09, 0x02 };
|
|
int handled = 0;
|
|
|
|
fluid_synth_sysex(self->Synth, evt->param.sysex.data, evt->param.sysex.size, NULL, NULL, &handled, 0);
|
|
if(!handled && evt->param.sysex.size >= (ALsizei)sizeof(gm2_on))
|
|
{
|
|
if(memcmp(evt->param.sysex.data, gm2_on, sizeof(gm2_on)) == 0)
|
|
self->ForceGM2BankSelect = AL_TRUE;
|
|
else if(memcmp(evt->param.sysex.data, gm2_off, sizeof(gm2_off)) == 0)
|
|
self->ForceGM2BankSelect = AL_FALSE;
|
|
}
|
|
}
|
|
else switch((evt->event&0xF0))
|
|
{
|
|
case AL_NOTEOFF_SOFT:
|
|
fluid_synth_noteoff(self->Synth, (evt->event&0x0F), evt->param.val[0]);
|
|
break;
|
|
case AL_NOTEON_SOFT:
|
|
fluid_synth_noteon(self->Synth, (evt->event&0x0F), evt->param.val[0], evt->param.val[1]);
|
|
break;
|
|
case AL_KEYPRESSURE_SOFT:
|
|
break;
|
|
|
|
case AL_CONTROLLERCHANGE_SOFT:
|
|
if(self->ForceGM2BankSelect)
|
|
{
|
|
int chan = (evt->event&0x0F);
|
|
if(evt->param.val[0] == CTRL_BANKSELECT_MSB)
|
|
{
|
|
if(evt->param.val[1] == 120 && (chan == 9 || chan == 10))
|
|
fluid_synth_set_channel_type(self->Synth, chan, CHANNEL_TYPE_DRUM);
|
|
else if(evt->param.val[1] == 121)
|
|
fluid_synth_set_channel_type(self->Synth, chan, CHANNEL_TYPE_MELODIC);
|
|
break;
|
|
}
|
|
if(evt->param.val[0] == CTRL_BANKSELECT_LSB)
|
|
{
|
|
fluid_synth_bank_select(self->Synth, chan, evt->param.val[1]);
|
|
break;
|
|
}
|
|
}
|
|
fluid_synth_cc(self->Synth, (evt->event&0x0F), evt->param.val[0], evt->param.val[1]);
|
|
break;
|
|
case AL_PROGRAMCHANGE_SOFT:
|
|
fluid_synth_program_change(self->Synth, (evt->event&0x0F), evt->param.val[0]);
|
|
break;
|
|
|
|
case AL_CHANNELPRESSURE_SOFT:
|
|
fluid_synth_channel_pressure(self->Synth, (evt->event&0x0F), evt->param.val[0]);
|
|
break;
|
|
|
|
case AL_PITCHBEND_SOFT:
|
|
fluid_synth_pitch_bend(self->Synth, (evt->event&0x0F), (evt->param.val[0]&0x7F) |
|
|
((evt->param.val[1]&0x7F)<<7));
|
|
break;
|
|
}
|
|
|
|
queue->pos++;
|
|
}
|
|
}
|
|
|
|
static void FSynth_process(FSynth *self, ALuint SamplesToDo, ALfloat (*restrict DryBuffer)[BUFFERSIZE])
|
|
{
|
|
MidiSynth *synth = STATIC_CAST(MidiSynth, self);
|
|
ALenum state = synth->State;
|
|
ALuint64 curtime;
|
|
ALuint total = 0;
|
|
|
|
if(state == AL_INITIAL)
|
|
return;
|
|
if(state != AL_PLAYING)
|
|
{
|
|
fluid_synth_write_float(self->Synth, SamplesToDo, DryBuffer[FrontLeft], 0, 1,
|
|
DryBuffer[FrontRight], 0, 1);
|
|
return;
|
|
}
|
|
|
|
curtime = MidiSynth_getTime(synth);
|
|
while(total < SamplesToDo)
|
|
{
|
|
ALuint64 time, diff;
|
|
ALint tonext;
|
|
|
|
time = MidiSynth_getNextEvtTime(synth);
|
|
diff = maxu64(time, curtime) - curtime;
|
|
if(diff >= MIDI_CLOCK_RES || time == UINT64_MAX)
|
|
{
|
|
/* If there's no pending event, or if it's more than 1 second
|
|
* away, do as many samples as we can. */
|
|
tonext = INT_MAX;
|
|
}
|
|
else
|
|
{
|
|
/* Figure out how many samples until the next event. */
|
|
tonext = (ALint)((diff*synth->SampleRate + (MIDI_CLOCK_RES-1)) / MIDI_CLOCK_RES);
|
|
tonext -= total;
|
|
}
|
|
|
|
if(tonext > 0)
|
|
{
|
|
ALuint todo = mini(tonext, SamplesToDo-total);
|
|
fluid_synth_write_float(self->Synth, todo, DryBuffer[FrontLeft], total, 1,
|
|
DryBuffer[FrontRight], total, 1);
|
|
total += todo;
|
|
tonext -= todo;
|
|
}
|
|
if(total < SamplesToDo && tonext == 0)
|
|
FSynth_processQueue(self, time);
|
|
}
|
|
|
|
synth->SamplesDone += SamplesToDo;
|
|
synth->ClockBase += (synth->SamplesDone/synth->SampleRate) * MIDI_CLOCK_RES;
|
|
synth->SamplesDone %= synth->SampleRate;
|
|
}
|
|
|
|
|
|
MidiSynth *FSynth_create(ALCdevice *device)
|
|
{
|
|
FSynth *synth = FSynth_New(sizeof(*synth));
|
|
if(!synth)
|
|
{
|
|
ERR("Failed to allocate FSynth\n");
|
|
return NULL;
|
|
}
|
|
memset(synth, 0, sizeof(*synth));
|
|
FSynth_Construct(synth, device);
|
|
|
|
if(FSynth_init(synth, device) == AL_FALSE)
|
|
{
|
|
DELETE_OBJ(STATIC_CAST(MidiSynth, synth));
|
|
return NULL;
|
|
}
|
|
|
|
return STATIC_CAST(MidiSynth, synth);
|
|
}
|
|
|
|
#else
|
|
|
|
MidiSynth *FSynth_create(ALCdevice* UNUSED(device))
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
#endif
|