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CDROM: Implement XA-ADPCM filtering

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This commit is contained in:
Connor McLaughlin 2019-10-15 17:25:48 +10:00
parent f285f26ec2
commit 7195766563
1 changed files with 15 additions and 2 deletions
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17
src/core/cdrom.cpp
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@ -589,6 +589,8 @@ void CDROM::ExecuteCommand()
const u8 file = m_param_fifo.Peek(0);
const u8 channel = m_param_fifo.Peek(1);
Log_WarningPrintf("CDROM setfilter command 0x%02X 0x%02X", ZeroExtend32(file), ZeroExtend32(channel));
m_filter_file_number = file;
m_filter_channel_number = channel;
PushStatResponse(Interrupt::ACK);
EndCommand();
return;
@ -793,8 +795,19 @@ void CDROM::DoSectorRead()
{
if (m_last_sector_subheader.submode.realtime && m_last_sector_subheader.submode.audio)
{
// TODO: Decode audio sector. Do we still transfer this to the CPU?
Log_WarningPrintf("Decode CD-XA audio sector");
// Check for automatic ADPCM filter.
if (m_mode.xa_filter && (m_last_sector_subheader.file_number != m_filter_file_number ||
m_last_sector_subheader.channel_number != m_filter_channel_number))
{
Log_DebugPrintf("Skipping sector due to filter mismatch (expected %u/%u got %u/%u)", m_filter_file_number,
m_filter_channel_number, m_last_sector_subheader.file_number,
m_last_sector_subheader.channel_number);
}
else
{
}
// Audio+realtime sectors aren't delivered to the CPU.
m_sector_buffer.clear();
pass_to_cpu = false;
}