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Precisely align scanlines with TIA scanlines.

This commit is contained in:
Christian Speckner 2019-12-17 22:51:08 +01:00
parent e5159ca59c
commit d0054b831d
1 changed files with 2 additions and 7 deletions
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9
src/emucore/TIASurface.cxx
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@ -109,13 +109,6 @@ void TIASurface::initialize(const Console& console,
setNTSC(NTSCFilter::Preset(myOSystem.settings().getInt("tv.filter")), false);
// Scanline repeating is sensitive to non-integral vertical resolution,
// so rounding is performed to eliminate it
// This won't be 100% accurate, but non-integral scaling isn't 100%
// accurate anyway
mySLineSurface->setSrcSize(1, 2 * int(float(mode.image.h()) /
floorf((float(mode.image.h()) / myTIA->height()) + 0.5f)));
#if 0
cerr << "INITIALIZE:\n"
<< "TIA:\n"
@ -271,6 +264,8 @@ void TIASurface::enableNTSC(bool enable)
myTiaSurface->setSrcSize(enable ? AtariNTSC::outWidth(TIAConstants::frameBufferWidth)
: TIAConstants::frameBufferWidth, myTIA->height());
mySLineSurface->setSrcSize(1, 2 * myTIA->height());
myScanlinesEnabled = myOSystem.settings().getInt("tv.scanlines") > 0;
FBSurface::Attributes& sl_attr = mySLineSurface->attributes();
sl_attr.blending = myScanlinesEnabled;