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CDROM: Use Sub-Channel Q for GetLocP

This commit is contained in:
Connor McLaughlin 2019-11-10 22:45:48 +10:00
parent 6bb4f8e728
commit ab90d287bb
2 changed files with 16 additions and 13 deletions
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24
src/core/cdrom.cpp
View File

@ -56,6 +56,7 @@ void CDROM::SoftReset()
m_filter_channel_number = 0;
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_next_cd_audio_volume_matrix[0][0] = 0x80;
m_next_cd_audio_volume_matrix[0][1] = 0x00;
@ -103,6 +104,7 @@ bool CDROM::DoState(StateWrapper& sw)
sw.Do(&m_filter_channel_number);
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_cd_audio_volume_matrix);
sw.Do(&m_next_cd_audio_volume_matrix);
sw.Do(&m_xa_last_samples);
@ -884,16 +886,15 @@ void CDROM::ExecuteCommand()
case Command::GetlocP:
{
// TODO: Subchannel Q support..
Log_DebugPrintf("CDROM GetlocP command");
m_response_fifo.Push(1); // track number
m_response_fifo.Push(1); // index
m_response_fifo.Push(m_last_sector_header.minute); // minute within track
m_response_fifo.Push(m_last_sector_header.second); // second within track
m_response_fifo.Push(m_last_sector_header.frame); // frame within track
m_response_fifo.Push(m_last_sector_header.minute); // minute on entire disc
m_response_fifo.Push(m_last_sector_header.second); // second on entire disc
m_response_fifo.Push(m_last_sector_header.frame); // frame on entire disc
m_response_fifo.Push(m_last_subq.track_number_bcd);
m_response_fifo.Push(m_last_subq.index_number_bcd);
m_response_fifo.Push(m_last_subq.relative_minute_bcd);
m_response_fifo.Push(m_last_subq.relative_second_bcd);
m_response_fifo.Push(m_last_subq.relative_frame_bcd);
m_response_fifo.Push(m_last_subq.absolute_minute_bcd);
m_response_fifo.Push(m_last_subq.absolute_second_bcd);
m_response_fifo.Push(m_last_subq.absolute_frame_bcd);
SetInterrupt(Interrupt::ACK);
EndCommand();
}
@ -1086,7 +1087,8 @@ void CDROM::DoSeekComplete()
m_secondary_status.ClearActiveBits();
m_sector_buffer.clear();
if (m_media && m_media->Seek(m_seek_position))
// seek and update sub-q for ReadP command
if (m_media && m_media->Seek(m_seek_position) && m_media->ReadSubChannelQ(&m_last_subq))
{
// seek complete, transition to play/read if requested
if (m_play_after_seek || m_read_after_seek)
@ -1169,7 +1171,7 @@ void CDROM::DoSectorRead()
{
// TODO: Error handling
u8 raw_sector[CDImage::RAW_SECTOR_SIZE];
if (!m_media->ReadRawSector(raw_sector))
if (!m_media->ReadSubChannelQ(&m_last_subq) || !m_media->ReadRawSector(raw_sector))
Panic("Sector read failed");
if (m_drive_state == DriveState::Reading)

5
src/core/cdrom.h
View File

@ -241,8 +241,9 @@ private:
u8 m_filter_file_number = 0;
u8 m_filter_channel_number = 0;
CDImage::SectorHeader m_last_sector_header = {};
CDXA::XASubHeader m_last_sector_subheader = {};
CDImage::SectorHeader m_last_sector_header{};
CDXA::XASubHeader m_last_sector_subheader{};
CDImage::SubChannelQ m_last_subq{};
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{};