/*
 * Copyright (C) 2005 to 2007 by Jonathan Duddington
 * email: jonsd@users.sourceforge.net
 * Copyright (C) 2015 Reece H. Dunn
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see: <http://www.gnu.org/licenses/>.
 */

#ifndef ESPEAK_NG_VOICE_H
#define ESPEAK_NG_VOICE_H

#include <espeak-ng/espeak_ng.h>

#ifdef __cplusplus
extern "C"
{
#endif

#define N_PEAKS   9

typedef struct {
	char v_name[40];
	char language_name[20];

	int phoneme_tab_ix; // phoneme table number
	int pitch_base; // Hz<<12
	int pitch_range; // standard = 0x1000

	int speedf1;
	int speedf2;
	int speedf3;

	int speed_percent;      // adjust the WPM speed by this percentage
	int flutter;
	int roughness;
	int echo_delay;
	int echo_amp;
	int n_harmonic_peaks;  // highest formant which is formed from adding harmonics
	int peak_shape;        // alternative shape for formant peaks (0=standard 1=squarer)
	int voicing;           // 100% = 64, level of formant-synthesized sound
	int formant_factor;    // adjust nominal formant frequencies by this  because of the voice's pitch (256ths)
	int consonant_amp;     // amplitude of unvoiced consonants
	int consonant_ampv;    // amplitude of the noise component of voiced consonants
	int samplerate;
	int klattv[8];

	// parameters used by Wavegen
	short freq[N_PEAKS];    // 100% = 256
	short height[N_PEAKS];  // 100% = 256
	short width[N_PEAKS];   // 100% = 256
	short freqadd[N_PEAKS]; // Hz

	// copies without temporary adjustments from embedded commands
	short freq2[N_PEAKS];    // 100% = 256
	short height2[N_PEAKS];  // 100% = 256
	short width2[N_PEAKS];   // 100% = 256

	int breath[N_PEAKS];  // amount of breath for each formant. breath[0] indicates whether any are set.
	int breathw[N_PEAKS]; // width of each breath formant

	// This table provides the opportunity for tone control.
	// Adjustment of harmonic amplitudes, steps of 8Hz
	// value of 128 means no change
	#define N_TONE_ADJUST  1000
	unsigned char tone_adjust[N_TONE_ADJUST];   //  8Hz steps * 1000 = 8kHz

} voice_t;

extern espeak_VOICE current_voice_selected;

extern voice_t *voice;
extern int tone_points[12];

const char *SelectVoice(espeak_VOICE *voice_select, int *found);
espeak_VOICE *SelectVoiceByName(espeak_VOICE **voices, const char *name);
voice_t *LoadVoice(const char *voice_name, int control);
voice_t *LoadVoiceVariant(const char *voice_name, int variant);
espeak_ng_STATUS DoVoiceChange(voice_t *v);
void WavegenSetVoice(voice_t *v);
void ReadTonePoints(char *string, int *tone_pts);
void VoiceReset(int control);
void FreeVoiceList(void);

#ifdef __cplusplus
}
#endif

#endif
