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Merge pull request #112 from TomHarte/LineTiming

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Fixes declared Atari line length.
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Thomas Harte 2017-03-14 21:34:19 -04:00 committed by GitHub
commit a04a58e01f
1 changed files with 5 additions and 1 deletions
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6
Machines/Atari2600/TIA.cpp
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@ -171,7 +171,11 @@ void TIA::set_output_mode(Atari2600::TIA::OutputMode output_mode)
"}");
display_type = Outputs::CRT::DisplayType::PAL50;
}
crt_->set_new_display_type(cycles_per_line * 2 + 1, display_type);
// line number of cycles in a line of video is one less than twice the number of clock cycles per line; the Atari
// outputs 228 colour cycles of material per line when an NTSC line 227.5. Since all clock numbers will be doubled
// later, cycles_per_line * 2 - 1 is therefore the real length of an NTSC line, even though we're going to supply
// cycles_per_line * 2 cycles of information from one sync edge to the next
crt_->set_new_display_type(cycles_per_line * 2 - 1, display_type);
/* speaker_->set_input_rate((float)(get_clock_rate() / 38.0));*/
}