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CDROM: Implement CDDA report

This commit is contained in:
Connor McLaughlin 2019-11-10 23:03:52 +10:00
parent ab90d287bb
commit 5a84122862
2 changed files with 38 additions and 2 deletions
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37
src/core/cdrom.cpp
View File

@ -57,6 +57,7 @@ void CDROM::SoftReset()
std::memset(&m_last_sector_header, 0, sizeof(m_last_sector_header));
std::memset(&m_last_sector_subheader, 0, sizeof(m_last_sector_subheader));
std::memset(&m_last_subq, 0, sizeof(m_last_subq));
m_last_cdda_report_frame_nibble = 0xFF;
m_next_cd_audio_volume_matrix[0][0] = 0x80;
m_next_cd_audio_volume_matrix[0][1] = 0x00;
@ -105,6 +106,7 @@ bool CDROM::DoState(StateWrapper& sw)
sw.DoBytes(&m_last_sector_header, sizeof(m_last_sector_header));
sw.DoBytes(&m_last_sector_subheader, sizeof(m_last_sector_subheader));
sw.DoBytes(&m_last_subq, sizeof(m_last_subq));
sw.Do(&m_last_cdda_report_frame_nibble);
sw.Do(&m_cd_audio_volume_matrix);
sw.Do(&m_next_cd_audio_volume_matrix);
sw.Do(&m_xa_last_samples);
@ -1042,6 +1044,8 @@ void CDROM::BeginReading(bool cdda)
// TODO: Should the sector buffer be cleared here?
m_sector_buffer.clear();
m_last_cdda_report_frame_nibble = 0xFF;
m_drive_state = cdda ? DriveState::Playing : DriveState::Reading;
m_drive_remaining_ticks = GetTicksForRead();
m_system->SetDowncount(m_drive_remaining_ticks);
@ -1385,7 +1389,38 @@ void CDROM::ProcessCDDASector(const u8* raw_sector)
Log_DevPrintf("Read sector %u as CDDA", m_media->GetPositionOnDisc());
if (m_mode.report_audio)
Log_ErrorPrintf("CDDA report not implemented");
{
const u8 frame_nibble = m_last_subq.absolute_frame_bcd >> 4;
if (m_last_cdda_report_frame_nibble != frame_nibble)
{
m_last_cdda_report_frame_nibble = frame_nibble;
Log_DebugPrintf("CDDA report at track[%02x] index[%02x] rel[%02x:%02x:%02x]", m_last_subq.track_number_bcd,
m_last_subq.index_number_bcd, m_last_subq.relative_minute_bcd, m_last_subq.relative_second_bcd,
m_last_subq.relative_frame_bcd);
m_async_response_fifo.Clear();
m_async_response_fifo.Push(m_secondary_status.bits);
m_async_response_fifo.Push(m_last_subq.track_number_bcd);
m_async_response_fifo.Push(m_last_subq.index_number_bcd);
if (m_last_subq.absolute_frame_bcd & 0x10)
{
m_async_response_fifo.Push(m_last_subq.relative_minute_bcd);
m_async_response_fifo.Push(0x80 | m_last_subq.relative_second_bcd);
m_async_response_fifo.Push(m_last_subq.relative_frame_bcd);
}
else
{
m_async_response_fifo.Push(m_last_subq.absolute_minute_bcd);
m_async_response_fifo.Push(m_last_subq.absolute_second_bcd);
m_async_response_fifo.Push(m_last_subq.absolute_frame_bcd);
}
m_async_response_fifo.Push(0); // peak low
m_async_response_fifo.Push(0); // peak high
SetAsyncInterrupt(Interrupt::INT1);
}
}
// Apply volume when pushing sectors to SPU.
if (m_muted)

3
src/core/cdrom.h
View File

@ -193,7 +193,7 @@ private:
TickCount GetTicksForRead() const;
TickCount GetTicksForSeek() const;
void BeginCommand(Command command); // also update status register
void EndCommand(); // also updates status register
void EndCommand(); // also updates status register
void ExecuteCommand();
void ExecuteTestCommand(u8 subcommand);
void BeginReading(bool cdda);
@ -244,6 +244,7 @@ private:
CDImage::SectorHeader m_last_sector_header{};
CDXA::XASubHeader m_last_sector_subheader{};
CDImage::SubChannelQ m_last_subq{};
u8 m_last_cdda_report_frame_nibble = 0xFF;
std::array<std::array<u8, 2>, 2> m_cd_audio_volume_matrix{};
std::array<std::array<u8, 2>, 2> m_next_cd_audio_volume_matrix{};