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#ifdef FS2_SPEECH
#import <AppKit/AppKit.h>
#import <AppKit/NSSpeechSynthesizer.h>
#include "globalincs/pstypes.h"
#include "utils/unicode.h"
static NSSpeechSynthesizer *synth = nil;
static bool Speech_init = false;
bool speech_init()
{
if (Speech_init) {
return true;
}
synth = [[NSSpeechSynthesizer alloc] init];
Speech_init = true;
return true;
}
void speech_deinit()
{
if ( !Speech_init ) {
return;
}
[synth release];
synth = nil;
Speech_init = false;
}
bool speech_play(const char *text)
{
if ( !Speech_init ) {
return false;
}
if ( !text || !strlen(text) ) {
nprintf(("Speech", "Not playing speech because passed text is null.\n"));
return false;
}
SCP_string work_buffer;
bool saw_dollar = false;
for (auto ch : unicode::codepoint_range(text)) {
if (ch == UNICODE_CHAR('$')) {
// Skip $ escape sequences which appear in briefing text
saw_dollar = true;
continue;
} else if (saw_dollar) {
saw_dollar = false;
continue;
}
unicode::encode(ch, std::back_inserter(work_buffer));
}
if (work_buffer.empty()) {
return false;
}
[synth startSpeakingString:
[NSString stringWithUTF8String:
work_buffer.c_str()
]
];
return true;
}
bool speech_pause()
{
if ( !Speech_init ) {
return false;
}
[synth pauseSpeakingAtBoundary:NSSpeechImmediateBoundary];
return true;
}
bool speech_resume()
{
if ( !Speech_init ) {
return false;
}
[synth continueSpeaking];
return true;
}
bool speech_stop()
{
if ( !Speech_init ) {
return false;
}
[synth stopSpeaking];
return true;
}
bool speech_set_volume(unsigned short volume)
{
if ( !Speech_init ) {
return false;
}
float vol = volume * 0.01f;
[synth
setObject: [NSNumber numberWithFloat:vol]
forProperty:NSSpeechVolumeProperty error:nil
];
return true;
}
bool speech_set_voice(int voice)
{
if ( !Speech_init ) {
return false;
}
NSArray *voices = [NSSpeechSynthesizer availableVoices];
if ( (voice < 0) || (voice >= [voices count]) ) {
nprintf(("Speech", "Attempting to set voice to invalid value (%d)\n", voice));
return false;
}
[synth setVoice: [voices objectAtIndex:voice]];
return true;
}
bool speech_is_speaking()
{
if ( !Speech_init ) {
return false;
}
return [synth isSpeaking];
}
SCP_vector<SCP_string> speech_enumerate_voices()
{
NSArray *voices = [NSSpeechSynthesizer availableVoices];
SCP_vector<SCP_string> fsoVoices;
for (NSString *voiceIdentifier in voices) {
NSDictionary *attributes = [NSSpeechSynthesizer attributesForVoice:voiceIdentifier];
NSString *name = [attributes objectForKey:NSVoiceName];
fsoVoices.push_back([name UTF8String]);
}
return fsoVoices;
}
#endif
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