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/*
* BRLTTY - A background process providing access to the console screen (when in
* text mode) for a blind person using a refreshable braille display.
*
* Copyright (C) 1995-2014 by The BRLTTY Developers.
*
* BRLTTY comes with ABSOLUTELY NO WARRANTY.
*
* This is free software, placed under the terms of the
* GNU General Public License, as published by the Free Software
* Foundation; either version 2 of the License, or (at your option) any
* later version. Please see the file LICENSE-GPL for details.
*
* Web Page: http://mielke.cc/brltty/
*
* This software is maintained by Dave Mielke <dave@mielke.cc>.
*/
#include "prologue.h"
#include "log.h"
#include "spk_types.h"
#include "spk_base.h"
#include "spk_thread.h"
#include "parse.h"
#include "brltty.h"
#ifdef ENABLE_SPEECH_SUPPORT
int
tellSpeechFinished (void) {
return speechMessage_speechFinished(spk.driver.thread);
}
int
tellSpeechLocation (int index) {
if (!spk.track.isActive) return 1;
return speechMessage_speechLocation(spk.driver.thread, index);
}
static unsigned int
getIntegerSetting (unsigned char setting, unsigned char internal, unsigned int external) {
return rescaleInteger(setting, internal, external);
}
unsigned int
getIntegerSpeechVolume (unsigned char setting, unsigned int normal) {
return getIntegerSetting(setting, SPK_VOLUME_DEFAULT, normal);
}
unsigned int
getIntegerSpeechRate (unsigned char setting, unsigned int normal) {
return getIntegerSetting(setting, SPK_RATE_DEFAULT, normal);
}
unsigned int
getIntegerSpeechPitch (unsigned char setting, unsigned int normal) {
return getIntegerSetting(setting, SPK_PITCH_DEFAULT, normal);
}
#ifndef NO_FLOAT
float
getFloatSpeechVolume (unsigned char setting) {
return (float)setting / (float)SPK_VOLUME_DEFAULT;
}
float
getFloatSpeechRate (unsigned char setting) {
static const float spkRateTable[] = {
0.3333,
0.3720,
0.4152,
0.4635,
0.5173,
0.5774,
0.6444,
0.7192,
0.8027,
0.8960,
1.0000,
1.1161,
1.2457,
1.3904,
1.5518,
1.7320,
1.9332,
2.1577,
2.4082,
2.6879,
3.0000
};
return spkRateTable[setting];
}
float
getFloatSpeechPitch (unsigned char setting) {
return (float)setting / (float)SPK_PITCH_DEFAULT;
}
#endif /* NO_FLOAT */
#endif /* ENABLE_SPEECH_SUPPORT */
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