6502/CLK
1
0
Fork 0
mirror of https://github.com/TomHarte/CLK.git synced 2024-07-07 08:28:57 +00:00
Code Issues Projects Releases Wiki Activity

Attempted via linear search to implement PCMTrack::get_next_event.

Browse Source
This commit is contained in:
Thomas Harte 2016-07-10 16:17:25 -04:00
parent f9510c1b67
commit 845a00ccef
1 changed files with 29 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

31
Storage/Disk/Formats/G64.cpp
View File

@ -161,8 +161,35 @@ PCMTrack::PCMTrack(PCMSegment segment)
PCMTrack::Event PCMTrack::get_next_event()
{
PCMTrack::Event new_event;
return new_event;
// find the next 1 in the input stream, keeping count of length as we go, and assuming it's going
// to be a flux transition
_next_event.type = Track::Event::FluxTransition;
_next_event.length.length = 0;
while(_segment_pointer < _segments.size())
{
unsigned int clock_multiplier = _track_clock_rate / _segments[_segment_pointer].duration.clock_rate;
const uint8_t *segment_data = _segments[_segment_pointer].data.get();
while(_bit_pointer < _segments[_segment_pointer].duration.length)
{
// for timing simplicity, bits are modelled as happening at the end of their window
int bit = segment_data[_bit_pointer >> 3] & (1 << (_bit_pointer&7));
_bit_pointer++;
_next_event.length.length += clock_multiplier;
if(bit) return _next_event;
}
_bit_pointer = 0;
_segment_pointer++;
}
// check whether we actually reached the index hole
if(_segment_pointer == _segments.size())
{
_segment_pointer = 0;
_next_event.type = Track::Event::IndexHole;
}
return _next_event;
}
void PCMTrack::fix_length()