PCE: Fixed data from previous frames sometimes being shown on screen …

…when VCE clock changes mid-scanline Caused flickering line in Order of the Griffon
SourMesen · Sep 30, 2023 · bb57e13 · bb57e13
1 parent 2c31b72
commit bb57e13
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Showing 2 changed files with 2 additions and 1 deletion.
diff --git a/Core/PCE/PceVdc.cpp b/Core/PCE/PceVdc.cpp
@@ -908,6 +908,7 @@ void PceVdc::InternalDrawScanline()
 
 	if(_state.HClock == 1365) {
 		_vpc->ProcessScanlineEnd(this, _state.Scanline, _rowBuffer);
+		memset(_rowBuffer, 0, PceConstants::MaxScreenWidth * sizeof(uint16_t));
 	}
 
 	_xStart = xStart;

diff --git a/Core/PCE/PceVpc.cpp b/Core/PCE/PceVpc.cpp
@@ -272,7 +272,7 @@ void PceVpc::ProcessScanlineEnd(PceVdc* vdc, uint16_t scanline, uint16_t* rowBuf
 	} else {
 		//PC Engine, display VDC1's data
 		uint32_t offset = (scanline - 14) * PceConstants::MaxScreenWidth;
-		memcpy(_currentOutBuffer + offset, rowBuffer, PceConstants::ClockPerScanline / _vce->GetClockDivider() * sizeof(uint16_t));
+		memcpy(_currentOutBuffer + offset, rowBuffer, PceConstants::MaxScreenWidth * sizeof(uint16_t));
 	}
 }