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CDROM: Rework sector buffering behavior

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This has not been tested on hardware yet, but fixes a couple of games.
This commit is contained in:
Connor McLaughlin
2020-03-12 15:32:41 +10:00
parent 86eefbd5d7
commit e076526898
3 changed files with 68 additions and 36 deletions
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12
src/core/cdrom.h
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@ -57,7 +57,7 @@ private:
PARAM_FIFO_SIZE = 16,
RESPONSE_FIFO_SIZE = 16,
DATA_FIFO_SIZE = RAW_SECTOR_OUTPUT_SIZE,
NUM_INTERRUPTS = 32
NUM_SECTOR_BUFFERS = 2,
};
static constexpr u8 INTERRUPT_REGISTER_MASK = 0x1F;
@ -229,6 +229,7 @@ private:
void ProcessCDDASector(const u8* raw_sector, const CDImage::SubChannelQ& subq);
void BeginSeeking(bool logical, bool read_after_seek, bool play_after_seek);
void LoadDataFIFO();
void ClearSectorBuffers();
System* m_system = nullptr;
DMA* m_dma = nullptr;
@ -281,7 +282,14 @@ private:
InlineFIFOQueue<u8, RESPONSE_FIFO_SIZE> m_response_fifo;
InlineFIFOQueue<u8, RESPONSE_FIFO_SIZE> m_async_response_fifo;
HeapFIFOQueue<u8, DATA_FIFO_SIZE> m_data_fifo;
std::vector<u8> m_sector_buffer;
struct SectorBuffer
{
HeapArray<u8, RAW_SECTOR_OUTPUT_SIZE> data;
u32 size;
};
std::array<SectorBuffer, NUM_SECTOR_BUFFERS> m_sector_buffers;
CDROMAsyncReader m_reader;
};