GuiSound.cpp

/****************************************************************************
 * libgui
 * Daryl Borth 2009-2026
 * GuiSound.cpp
 *
 * Generic - Everything platform-specific lives behind audioSystem
 ***************************************************************************/
 
#include "Gui.h"
 
int GuiSound::defaultMusicVolume = 100;
int GuiSound::defaultSfxVolume = 100;
GuiSound* GuiSound::playingOGG = nullptr;
GuiSound* GuiSound::activeMusic = nullptr;
 
GuiSound::GuiSound() { }
 
GuiSound::GuiSound(const uint8_t * s, int32_t l, SOUND t)
{
    sound = s;
    length = l;
    type = t;
    voice = -1;
    volume = 100;
    loop = false;
}
 
GuiSound::~GuiSound()
{
    if(type == SOUND::OGG) {
        // Only stop the shared hardware stream if this instance is the one actually occupying it
        if (playingOGG == this) {
            platform->getAudio()->stopStream();
            playingOGG = nullptr;
        }
        if (activeMusic == this) {
            activeMusic = nullptr;
        }
    }
}
 
void GuiSound::play()
{
    int typeVol = loop ? defaultMusicVolume : defaultSfxVolume;
    int vol = 255 * (volume / 100.0) * (typeVol / 100.0);
 
    switch(type)
    {
        case SOUND::PCM:
            voice = platform->getAudio()->playVoice(sound, length, vol);
            break;
        case SOUND::OGG:
            playingOGG = this;
            if (loop) {
                activeMusic = this;
            }
            voice = 0;
            platform->getAudio()->playStream(sound, length, loop, vol);
            break;
        case SOUND::NONE:
            break;
    }
}
 
void GuiSound::stop()
{
    if(voice < 0)
        return;
 
    switch(type)
    {
        case SOUND::PCM:
            platform->getAudio()->stopVoice(voice);
            break;
        case SOUND::OGG:
            platform->getAudio()->stopStream();
            if (playingOGG == this) {
                playingOGG = nullptr;
            }
            if (activeMusic == this) {
                activeMusic = nullptr;
            }
            break;
        case SOUND::NONE:
            break;
    }
}
 
void GuiSound::pause()
{
    if(voice < 0)
        return;
 
    switch(type)
    {
        case SOUND::PCM:
            platform->getAudio()->pauseVoice(voice);
            break;
        case SOUND::OGG:
            platform->getAudio()->pauseStream();
            break;
        case SOUND::NONE:
            break;
    }
}
 
void GuiSound::resume()
{
    if(voice < 0)
        return;
 
    switch(type)
    {
        case SOUND::PCM:
            platform->getAudio()->resumeVoice(voice);
            break;
        case SOUND::OGG:
            platform->getAudio()->resumeStream();
            break;
        case SOUND::NONE:
            break;
    }
}
 
bool GuiSound::isPlaying()
{
    if(voice < 0)
        return false;
 
    switch(type)
    {
        case SOUND::PCM:
            return platform->getAudio()->isVoicePlaying(voice);
        case SOUND::OGG:
            return platform->getAudio()->isStreamPlaying();
        case SOUND::NONE:
            return false;
    }
 
    return false;
}
 
void GuiSound::setVolume(int vol)
{
    volume = vol;
 
    if(voice < 0)
        return;
 
    int typeVol = loop ? defaultMusicVolume : defaultSfxVolume;
    int newvol = 255 * (volume / 100.0) * (typeVol / 100.0);
 
    switch(type)
    {
        case SOUND::PCM:
            platform->getAudio()->setVoiceVolume(voice, newvol);
            break;
        case SOUND::OGG:
            platform->getAudio()->setStreamVolume(newvol);
            break;
        case SOUND::NONE:
            break;
    }
}
 
void GuiSound::setLoop(bool l)
{
    loop = l;
}
 
void GuiSound::setDefaultVolume(VOLUME_TYPE t, int v)
{
    if (t == VOLUME_TYPE::SFX) {
        defaultSfxVolume = v;
    } else if (t == VOLUME_TYPE::MUSIC) {
        defaultMusicVolume = v;
 
        if (activeMusic) {
            if (playingOGG == activeMusic && activeMusic->isPlaying()) {
                // Still the active stream - just push the new volume live
                activeMusic->setVolume(activeMusic->volume);
            } else {
                // The music track was displaced - restart it
                activeMusic->play();
            }
        }
    }
}