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PPU: Fixed sprite wrapping behavior at the bottom/top of the screen

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This commit is contained in:
Sour 2019-03-03 00:31:28 -05:00
parent c138e20a06
commit 12bd090daf
1 changed files with 7 additions and 2 deletions
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9
Core/Ppu.cpp
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@ -115,8 +115,10 @@ void Ppu::Exec()
_cycle++; _cycle++;
if(_cycle == 278 && _scanline <= (_overscanMode ? 239 : 224)) { if(_cycle == 278 && _scanline <= (_overscanMode ? 239 : 224)) {
if(_scanline > 0) { if(_scanline != 0) {
RenderScanline(); RenderScanline();
} else {
EvaluateNextLineSprites();
} }
_console->GetDmaController()->ProcessHdmaChannels(); _console->GetDmaController()->ProcessHdmaChannels();
} else if(_cycle == 134) { } else if(_cycle == 134) {
@ -147,7 +149,10 @@ void Ppu::EvaluateNextLineSprites()
height /= 2; height /= 2;
} }
if(y > screenY || y + height <= screenY) { uint8_t startY = y + 16;
uint8_t endY = y + height + 16;
if(startY > screenY + 16 || endY <= screenY + 16) {
//Not visible on this scanline //Not visible on this scanline
continue; continue;
} }