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support for arbitrary channel count
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@KinoMyu
KinoMyu committed May 27, 2020
1 parent 12f9da2 commit dbd04b9
Showing 1 changed file with 70 additions and 16 deletions.
86 changes: 70 additions & 16 deletions src/mainwindow.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -328,13 +328,28 @@ void MainWindow::setBGM(const QString&)
void MainWindow::setPosition(int value)
{
QWORD len = BASS_ChannelGetLength(bgm->get_decode_channel(), BASS_POS_BYTE);
QWORD pos = (long double)len / 2 / ui->positionSlider->maximum() * value;
BASS_CHANNELINFO bgminfo;
BASS_ChannelGetInfo(bgm->get_decode_channel(), &bgminfo);

bool was_playing = true;
if(BASS_ChannelIsActive(play_stream) == BASS_ACTIVE_PAUSED)
{
was_playing = false;
}
QWORD pos = (long double)len / (bgminfo.chans ? bgminfo.chans : 1) / ui->positionSlider->maximum() * value;
for(int i = 0; i < NUM_IDOLS; ++i)
{
BASS_ChannelSetPosition(idols[i]->get_decode_channel(), pos, BASS_POS_BYTE);
BASS_CHANNELINFO idolinfo;
BASS_ChannelGetInfo(idols[i]->get_decode_channel(), &idolinfo);
BASS_ChannelSetPosition(idols[i]->get_decode_channel(), idolinfo.chans * pos, BASS_POS_BYTE);
}
BASS_ChannelSetPosition(bgm->get_decode_channel(), pos * 2, BASS_POS_BYTE);
fuzzyAdjust();

if(was_playing)
{
BASS_ChannelPlay(play_stream, FALSE);
}
}

void MainWindow::play()
Expand Down Expand Up @@ -394,8 +409,12 @@ void MainWindow::setIdol(int index)
idol_pixmap[index] = QPixmap(filename);
idol_image[index]->setPixmap(idol_pixmap[index]);

QWORD pos = BASS_ChannelGetPosition(bgm->get_decode_channel(), BASS_POS_BYTE);
idols[index]->load("res/" + current_song + "/" + current_idols[index] + ".hca", pos/4);
BASS_CHANNELINFO bgminfo;
BASS_ChannelGetInfo(bgm->get_decode_channel(), &bgminfo);

QWORD pos = BASS_ChannelGetPosition(bgm->get_decode_channel(), BASS_POS_BYTE) / (bgminfo.chans ? bgminfo.chans : 1);

idols[index]->load("res/" + current_song + "/" + current_idols[index] + ".hca", pos/2);
idols_oneshot[index]->load("res/" + current_song + "/oneshot/" + current_idols[index] + ".hca", 0);

if(index >= unit_size)
Expand All @@ -411,8 +430,11 @@ void MainWindow::setIdol(int index)
was_playing = false;
}
BASS_ChannelPause(play_stream);
pos = BASS_ChannelGetPosition(bgm->get_decode_channel(), BASS_POS_BYTE);
BASS_ChannelSetPosition(idols[index]->get_decode_channel(), pos / 2, BASS_POS_BYTE);

BASS_CHANNELINFO idolinfo;
BASS_ChannelGetInfo(idols[index]->get_decode_channel(), &idolinfo);

BASS_ChannelSetPosition(idols[index]->get_decode_channel(), pos * idolinfo.chans, BASS_POS_BYTE);
BASS_Mixer_StreamAddChannel(idol_mix_stream, idols[index]->get_decode_channel(), 0);
fuzzyAdjust();
if(was_playing)
Expand Down Expand Up @@ -455,6 +477,16 @@ void MainWindow::reautomateVolumes()
parse_control_file(oneshot_event_list, "res/" + current_song + "/oneshot" + std::to_string(unit_size) + ".txt");
addSyncEvents();

BASS_CHANNELINFO bgminfo;
BASS_ChannelGetInfo(bgm->get_decode_channel(), &bgminfo);

bool was_playing = true;
if(BASS_ChannelIsActive(play_stream) == BASS_ACTIVE_PAUSED)
{
was_playing = false;
}
BASS_ChannelPause(play_stream);

for(int i = 0; i < NUM_IDOLS; ++i)
{
// Don't unload, rather just cleanup channels
Expand All @@ -467,12 +499,21 @@ void MainWindow::reautomateVolumes()
{
idols[i]->make_channels();
idols_oneshot[i]->make_channels();
QWORD position = BASS_ChannelGetPosition(bgm->get_decode_channel(), BASS_POS_BYTE);
BASS_ChannelSetPosition(idols[i]->get_decode_channel(), position / 2, BASS_POS_BYTE);

BASS_CHANNELINFO idolinfo;
BASS_ChannelGetInfo(idols[i]->get_decode_channel(), &idolinfo);

QWORD position = BASS_ChannelGetPosition(bgm->get_decode_channel(), BASS_POS_BYTE) / (bgminfo.chans ? bgminfo.chans : 1);
BASS_ChannelSetPosition(idols[i]->get_decode_channel(), position * idolinfo.chans, BASS_POS_BYTE);
BASS_Mixer_StreamAddChannel(idol_mix_stream, idols[i]->get_decode_channel(), 0);
}
}
fuzzyAdjust();

if(was_playing)
{
BASS_ChannelPlay(play_stream, FALSE);
}
}

std::string MainWindow::findIdolsOfType(char type)
Expand Down Expand Up @@ -529,7 +570,10 @@ std::string MainWindow::filterCommand(const std::string &command)

void MainWindow::applyOneshotCommand(QWORD pos, const std::string &command)
{
QWORD bgmpos = BASS_ChannelGetPosition(bgm->get_decode_channel(), BASS_POS_BYTE) / 4;
BASS_CHANNELINFO bgminfo;
BASS_ChannelGetInfo(bgm->get_decode_channel(), &bgminfo);

QWORD bgmpos = BASS_ChannelGetPosition(bgm->get_decode_channel(), BASS_POS_BYTE) / (bgminfo.chans ? bgminfo.chans : 1) / 2;
QWORD mappos = (bgmpos - pos) * 2;

for(int i = 0; i < unit_size; ++i)
Expand All @@ -545,13 +589,20 @@ void MainWindow::applyOneshotCommand(QWORD pos, const std::string &command)
{
if(filtered[i] != 'x')
{
QWORD len = BASS_ChannelGetLength(idols_oneshot[filtered[i] - 48]->get_decode_channel(), BASS_POS_BYTE);
if(mappos < len)
DWORD ichan = idols_oneshot[filtered[i] - 48]->get_decode_channel();
QWORD len = BASS_ChannelGetLength(ichan, BASS_POS_BYTE);

BASS_CHANNELINFO idolinfo;
BASS_ChannelGetInfo(ichan, &idolinfo);

QWORD cmappos = mappos * idolinfo.chans;

if(cmappos < len)
{
BASS_ChannelSetAttribute(idols_oneshot[filtered[i] - 48]->get_decode_channel(), BASS_ATTRIB_VOL, idol_vol * volTable[numSinging - 1 - n] / (is_usotsuki ? 0.75 : 0.95));
BASS_ChannelSetAttribute(idols_oneshot[filtered[i] - 48]->get_decode_channel(), BASS_ATTRIB_PAN, panTable[numSinging - 1][i]);
BASS_ChannelSetPosition(idols_oneshot[filtered[i] - 48]->get_decode_channel(), mappos, BASS_POS_BYTE);
BASS_Mixer_StreamAddChannel(idol_oneshot_stream, idols_oneshot[filtered[i] - 48]->get_decode_channel(), 0);
BASS_ChannelSetAttribute(ichan, BASS_ATTRIB_VOL, idol_vol * volTable[numSinging - 1 - n] / (is_usotsuki ? 0.75 : 0.95));
BASS_ChannelSetAttribute(ichan, BASS_ATTRIB_PAN, panTable[numSinging - 1][i]);
BASS_ChannelSetPosition(ichan, cmappos, BASS_POS_BYTE);
BASS_Mixer_StreamAddChannel(idol_oneshot_stream, ichan, 0);
}
}
}
Expand Down Expand Up @@ -629,7 +680,10 @@ void MainWindow::addSyncEvents()

void MainWindow::fuzzyAdjust()
{
QWORD pos = BASS_ChannelGetPosition(bgm->get_decode_channel(), BASS_POS_BYTE) / 4;
BASS_CHANNELINFO bgminfo;
BASS_ChannelGetInfo(bgm->get_decode_channel(), &bgminfo);

QWORD pos = BASS_ChannelGetPosition(bgm->get_decode_channel(), BASS_POS_BYTE) / (bgminfo.chans ? bgminfo.chans : 1) / 2;
if(!event_list.empty())
{
auto it = event_list.upper_bound(pos);
Expand Down

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