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better implement when the line count reg is/isnt updated

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This commit is contained in:
Jaklyy 2024-04-04 19:36:17 -04:00
parent e1cbadbe60
commit 75956b43c4
3 changed files with 31 additions and 11 deletions
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11
src/GPU3D.cpp
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@ -240,9 +240,6 @@ void GPU3D::Reset() noexcept
DispCnt = 0;
AlphaRefVal = 0;
AlphaRef = 0;
RDLines = 63; // defaults to 63 for one frame? (CHECKME: when does it reset?)
RDLinesTemp = 63;
memset(ToonTable, 0, sizeof(ToonTable));
memset(EdgeTable, 0, sizeof(EdgeTable));
@ -257,6 +254,8 @@ void GPU3D::Reset() noexcept
ResetRenderingState();
RDLines = 63;
AbortFrame = false;
Timestamp = 0;
@ -570,6 +569,7 @@ void GPU3D::SetEnabled(bool geometry, bool rendering) noexcept
RenderingEnabled = rendering;
if (!rendering) ResetRenderingState();
else RDLinesTemp = 63; // resets to 63 when the rasterizer is toggled on
}
@ -2431,11 +2431,14 @@ bool YSort(Polygon* a, Polygon* b)
void GPU3D::VBlank() noexcept
{
RDLines = RDLinesTemp;
if (RenderingEnabled)
RDLines = RDLinesTemp;
if (GeometryEnabled)
{
if (RenderingEnabled)
{
RDLines = RDLinesTemp;
if (FlushRequest)
{
if (NumPolygons)

6
src/GPU3D.h
View file

@ -246,9 +246,11 @@ public:
bool RenderingEnabled = false;
u32 DispCnt = 0;
bool RDLinesUnderflow = false;
u8 RDLines = 63;
u8 RDLinesTemp = 46;
u8 RDLines = 0;
u8 RDLinesTemp = 0;
u8 AlphaRefVal = 0;
u8 AlphaRef = 0;

25
src/GPU3D_Soft.cpp
View file

@ -1923,9 +1923,6 @@ void SoftRenderer::RenderPolygons(GPU& gpu, Polygon** polygons, int npolys)
SetupPolygon(&PolygonList[j++], polygons[i]);
}
//init internal buffer
ClearBuffers(gpu);
// reset scanline trackers
gpu.GPU3D.RDLinesUnderflow = false;
gpu.GPU3D.RDLinesTemp = 63;
@ -2022,7 +2019,16 @@ void SoftRenderer::RenderFrame(GPU& gpu)
// "Render thread, you're up! Get moving."
Platform::Semaphore_Post(Sema_RenderStart);
}
else if (!FrameIdentical) RenderPolygons(gpu, &gpu.GPU3D.RenderPolygonRAM[0], gpu.GPU3D.RenderNumPolygons);
else if (!FrameIdentical)
{
//init internal buffer
ClearBuffers(gpu);
if (gpu.GPU3D.RenderNumPolygons > 0)
RenderPolygons(gpu, &gpu.GPU3D.RenderPolygonRAM[0], gpu.GPU3D.RenderNumPolygons);
else
memcpy(FinalBuffer, ColorBuffer, sizeof(FinalBuffer));
}
}
void SoftRenderer::RestartFrame(GPU& gpu)
@ -2050,7 +2056,16 @@ void SoftRenderer::RenderThreadFunc(GPU& gpu)
{ // If no rendering is needed, just say we're done.
Platform::Semaphore_Post(Sema_ScanlineCount, 192);
}
else RenderPolygons(gpu, &gpu.GPU3D.RenderPolygonRAM[0], gpu.GPU3D.RenderNumPolygons);
else
{
//init internal buffer
ClearBuffers(gpu);
if (gpu.GPU3D.RenderNumPolygons > 0)
RenderPolygons(gpu, &gpu.GPU3D.RenderPolygonRAM[0], gpu.GPU3D.RenderNumPolygons);
else
memcpy(FinalBuffer, ColorBuffer, sizeof(FinalBuffer));
}
// Tell the main thread that we're done rendering
// and that it's safe to access the GPU state again.