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fix another crash + bug w/ scanline delay

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This commit is contained in:
Jaklyy 2023-12-25 15:26:48 -05:00
parent ee3e38aed3
commit 4f3b99f5c4
1 changed files with 6 additions and 3 deletions
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7
src/GPU3D_Soft.cpp
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@ -1749,7 +1749,7 @@ u16 SoftRenderer::BeginPushScanline(s32 y, s32 pixelstodraw)
// if a scanline is late enough to intersect with the 2d engine read time it will be partially drawn
u16 start;
if (pixelstodraw >= 256) // if scheduled after or 256 cycles before a scanline read render full scanline
if (pixelstodraw >= 256 || pixelstodraw <= 0) // if scheduled after or 256 cycles before a scanline read render full scanline
{
start = 0;
pixelstodraw = 256;
@ -1919,7 +1919,10 @@ void SoftRenderer::RenderPolygons(GPU& gpu, Polygon** polygons, int npolys)
break;
}
leftovers = BeginPushScanline(scanlinespushed, (rasterevents[ScanlineRead] + (ScanlineReadInc*scanlineswaitingforread)) - rasterevents[PushScanline]);
{
s32 pixelstopush = (scanlinespushed > scanlinesread ? 256 : (rasterevents[ScanlineRead] + (ScanlineReadInc*scanlineswaitingforread)) - rasterevents[PushScanline]);
leftovers = BeginPushScanline(scanlinespushed, pixelstopush);
}
scanlineswaitingforpush--;
scanlinespushed++;