PCE: Fixed SGX games video issue caused by another recent fix

Row buffer for VDC2 was being cleared too early, causing the 2nd layer to always be empty
SourMesen · Oct 30, 2023 · 7a29277 · 7a29277
1 parent c0ea124
commit 7a29277
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Showing 2 changed files with 3 additions and 1 deletion.
diff --git a/Core/PCE/PceVdc.cpp b/Core/PCE/PceVdc.cpp
@@ -908,7 +908,6 @@ 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
@@ -269,10 +269,13 @@ void PceVpc::ProcessScanlineEnd(PceVdc* vdc, uint16_t scanline, uint16_t* rowBuf
 
 	if(_vdc2) {
 		ProcessScanline();
+		memset(_vdc1->GetRowBuffer(), 0, PceConstants::MaxScreenWidth * sizeof(uint16_t));
+		memset(_vdc2->GetRowBuffer(), 0, PceConstants::MaxScreenWidth * sizeof(uint16_t));
 	} else {
 		//PC Engine, display VDC1's data
 		uint32_t offset = (scanline - 14) * PceConstants::MaxScreenWidth;
 		memcpy(_currentOutBuffer + offset, rowBuffer, PceConstants::MaxScreenWidth * sizeof(uint16_t));
+		memset(rowBuffer, 0, PceConstants::MaxScreenWidth * sizeof(uint16_t));
 	}
 }