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CDROM: Initial debug windows

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This commit is contained in:
Connor McLaughlin
2019-10-17 23:54:51 +10:00
parent a6a121f8fe
commit 0324ae2fd7
5 changed files with 142 additions and 23 deletions
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15
src/common/cd_image.cpp
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@ -11,20 +11,6 @@ CDImage::~CDImage()
m_data_file->Release();
}
constexpr u64 CDImage::MSFToLBA(u32 pregap_seconds, u32 minute, u32 second, u32 frame)
{
return ZeroExtend64(minute) * FRAMES_PER_MINUTE + ZeroExtend64(second) * FRAMES_PER_SECOND + ZeroExtend64(frame) -
ZeroExtend64(pregap_seconds) * FRAMES_PER_SECOND;
}
constexpr void CDImage::LBAToMSF(u32 pregap_seconds, u64 lba, u32* minute, u32* second, u32* frame)
{
const u64 offset = (lba + (pregap_seconds * FRAMES_PER_SECOND) % FRAMES_PER_MINUTE);
*minute = Truncate32(lba / FRAMES_PER_MINUTE);
*second = Truncate32(offset / FRAMES_PER_SECOND);
*frame = Truncate32(offset % FRAMES_PER_SECOND);
}
bool CDImage::Open(const char* path)
{
Assert(!m_data_file);
@ -35,6 +21,7 @@ bool CDImage::Open(const char* path)
return false;
}
m_filename = path;
m_lba_count = m_data_file->GetSize() / RAW_SECTOR_SIZE;
return true;
}