/*
  Copyright (c) 2021 Alex Diener
  
  This software is provided 'as-is', without any express or implied
  warranty. In no event will the authors be held liable for any damages
  arising from the use of this software.
  
  Permission is granted to anyone to use this software for any purpose,
  including commercial applications, and to alter it and redistribute it
  freely, subject to the following restrictions:
  
  1. The origin of this software must not be misrepresented; you must not
     claim that you wrote the original software. If you use this software
     in a product, an acknowledgment in the product documentation would be
     appreciated but is not required.
  2. Altered source versions must be plainly marked as such, and must not be
     misrepresented as being the original software.
  3. This notice may not be removed or altered from any source distribution.
  
  Alex Diener alex@ludobloom.com
*/

#include "audiosynth/FrequencyCurve_spline.h"
#include "utilities/lookup3.h"
#include <math.h>

#define stemobject_implementation FrequencyCurve_spline

stemobject_vtable_begin();
stemobject_vtable_entry(dispose);
stemobject_vtable_entry(copy);
stemobject_vtable_entry(isEqual);
stemobject_vtable_entry(hash);
stemobject_vtable_entry(initState);
stemobject_vtable_entry(disposeState);
stemobject_vtable_entry(getPropertyCount);
stemobject_vtable_entry(getPropertyAtIndex);
stemobject_vtable_entry(getPropertyValueStateless);
stemobject_vtable_entry(setPropertyValue);
stemobject_vtable_entry(sample);
stemobject_vtable_end();

FrequencyCurve_spline * FrequencyCurve_spline_create(float baseValue, SplineInfo spline) {
	stemobject_create_implementation(init, baseValue, spline)
}

bool FrequencyCurve_spline_init(FrequencyCurve_spline * self, float baseValue, SplineInfo spline) {
	call_super(init, self, baseValue);
	self->spline = spline;
	return true;
}

void FrequencyCurve_spline_dispose(FrequencyCurve_spline * self) {
	disposeSplineInfo(&self->spline);
	call_super_virtual(dispose, self);
}

FrequencyCurve_spline * FrequencyCurve_spline_copy(FrequencyCurve_spline * self) {
	stemobject_copy_implementation(initCopy)
}

bool FrequencyCurve_spline_isEqual(FrequencyCurve_spline * self, compat_type(FrequencyCurve_spline *) compareUntyped) {
	FrequencyCurve_spline * compare = compareUntyped;
	if (!call_super_virtual(isEqual, self, compare)) {
		return false;
	}
	return isSplineInfoEqual(&compare->spline, &self->spline);
}

uint32_t FrequencyCurve_spline_hash(FrequencyCurve_spline * self, uint32_t initval) {
	initval = hashSplineInfo(&self->spline, initval);
	return initval;
}

void FrequencyCurve_spline_initCopy(FrequencyCurve_spline * self, FrequencyCurve_spline * original) {
	call_super(initCopy, self, (FrequencyCurve *) original);
	self->spline = copySplineInfo(&original->spline);
}

#define PROPERTY_INDEX_BASE_VALUE 0

struct FrequencyCurve_spline_state {
	float properties[1];
};

SamplerObject_state * FrequencyCurve_spline_initState(FrequencyCurve_spline * self) {
	struct FrequencyCurve_spline_state * stateStruct = malloc(sizeof(*stateStruct));
	stateStruct->properties[PROPERTY_INDEX_BASE_VALUE] = self->baseValue;
	return stateStruct;
}

void FrequencyCurve_spline_disposeState(FrequencyCurve_spline * self, SamplerObject_state * state) {
	free(state);
}

static SynthProperty synthProperties[1];

static void initSynthProperties(void) {
	SYNTH_PROPERTY(PROPERTY_INDEX_BASE_VALUE, baseValue, "Base value", 0.0f, 9.0f, 4.0f, 1.0f / 12.0f)
}

SYNTH_PROPERTY_FUNCTION_IMPLEMENTATIONS()

float FrequencyCurve_spline_getPropertyValueStateless(FrequencyCurve_spline * self, SynthPropertyIdentifier propertyIdentifier) {
	return self->baseValue;
}

void FrequencyCurve_spline_setPropertyValue(FrequencyCurve_spline * self, SamplerObject_state * state, SynthPropertyIdentifier propertyIdentifier, float value) {
	struct FrequencyCurve_spline_state * stateStruct = state;
	stateStruct->properties[PROPERTY_INDEX_BASE_VALUE] = value;
}

float FrequencyCurve_spline_sample(FrequencyCurve_spline * self, SamplerObject_state * state, float phase, float phaseDelta, float time, float timeDelta) {
	struct FrequencyCurve_spline_state * stateStruct = state;
	return sampleSplineYAtX(&self->spline, phase) + stateStruct->properties[PROPERTY_INDEX_BASE_VALUE];
}