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tentative timings for "empty" polys scanlines, fix swapped polys breaking

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This commit is contained in:
Jaklyy 2023-12-09 15:56:36 -05:00
parent 92ca04e479
commit c45d3320d0
4 changed files with 68 additions and 41 deletions
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8
src/GPU3D.cpp
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@ -781,16 +781,16 @@ bool GPU3D::DoTimings(s32 cycles, bool odd)
if (odd)
{
RasterTimingCounterOdd += cycles;
if ((RasterTimingCounterOdd + RasterTimingCounterPrev) < RasterTimingCap) return 0;
if ((RasterTimingCounterOdd + RasterTimingCounterPrev) < RasterTimingCap) return false;
}
else
{
RasterTimingCounterEven += cycles;
if ((RasterTimingCounterEven + RasterTimingCounterPrev) < RasterTimingCap) return 0;
if ((RasterTimingCounterEven + RasterTimingCounterPrev) < RasterTimingCap) return false;
}
DispCnt |= (1<<12);
return 1;
return true;
}
void GPU3D::EndScanline(bool odd)
@ -805,7 +805,7 @@ void GPU3D::EndScanline(bool odd)
// seems to display the lowest scanline buffer count reached during the current frame.
// we also caps it to 46 here, because this reg does that too for some reason.
if (RDLines > RDLinesMin) RDLines = RDLinesMin;
if (RDLines < RDLinesMin) RDLinesMin = RDLines;
else if (RDLines < RDLinesMin) RDLinesMin = RDLines;
RasterTimingCounterOdd = 0;
RasterTimingCounterEven = 0;
}

19
src/GPU3D.h
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@ -30,14 +30,6 @@ namespace melonDS
{
class GPU;
// numbers based on 339 poly 64-172 horiz. line poly
static constexpr int RasterTimingCap = 51116;
static constexpr int PerPolyTiming = 12; // should be correct for *most* line polygons
static constexpr int PerPixelTiming = 1; // does not apply to the first 4 pixels in a polygon (per scanline?)
static constexpr int PerScanlineTiming = 1064;// approximate currently, used to calc RDLines
static constexpr int PerScanlineRecup = 2112; // seems to check out?
//static constexpr int EmptyPolyScanline;
//static constexpr int FirstPixelTiming;
struct Vertex
{
@ -345,6 +337,17 @@ public:
u32 ScrolledLine[256];
};
// numbers based on 339 poly 64-172 horiz. line poly
static constexpr int Frac = 481; // add a fractional component if pixels is not enough precision
static constexpr int RasterTimingCap = 51116*Frac;
static constexpr int PerScanlineTiming = 1064*Frac; // approximate currently, used to calc RDLines. TEMPORARY UNTIL ACCURATE "FRAMEBUFFER" CAN BE IMPLEMENTED
static constexpr int PerScanlineRecup = 2112*Frac; // seems to check out?
static constexpr int PerPolyTiming = 12*Frac; // should be correct for *most* line polygons and polygons with vertical slopes
static constexpr int PerPixelTiming = 1*Frac; // does not apply to the first 4 pixels in a polygon (per scanline?)
static constexpr int EmptyPolyScanline = 4*Frac - 14; // seems to be slightly under 4?
//static constexpr int FirstPixelTiming;
class Renderer3D
{
public:

78
src/GPU3D_Soft.cpp
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@ -672,6 +672,31 @@ void SoftRenderer::SetupPolygon(SoftRenderer::RendererPolygon* rp, Polygon* poly
}
}
bool SoftRenderer::Step(RendererPolygon* rp, bool abortscanline)
{
rp->XL = rp->SlopeL.Step();
rp->XR = rp->SlopeR.Step();
return abortscanline;
}
void SoftRenderer::CheckSlope(RendererPolygon* rp, s32 y)
{
Polygon* polygon = rp->PolyData;
if (polygon->YTop != polygon->YBottom)
{
if (y >= polygon->Vertices[rp->NextVL]->FinalPosition[1] && rp->CurVL != polygon->VBottom)
{
SetupPolygonLeftEdge(rp, y);
}
if (y >= polygon->Vertices[rp->NextVR]->FinalPosition[1] && rp->CurVR != polygon->VBottom)
{
SetupPolygonRightEdge(rp, y);
}
}
}
void SoftRenderer::RenderShadowMaskScanline(RendererPolygon* rp, s32 y)
{
Polygon* polygon = rp->PolyData;
@ -900,10 +925,8 @@ void SoftRenderer::RenderShadowMaskScanline(RendererPolygon* rp, s32 y)
rp->XR = rp->SlopeR.Step();
}
void SoftRenderer::RenderPolygonScanline(RendererPolygon* rp, s32 y, bool odd)
bool SoftRenderer::RenderPolygonScanline(RendererPolygon* rp, s32 y, bool odd)
{
if (GPU.GPU3D.DoTimings(PerPolyTiming, odd)) return;
int pixelsrendered = 0;
Polygon* polygon = rp->PolyData;
u32 polyattr = (polygon->Attr & 0x3F008000);
if (!polygon->FacingView) polyattr |= (1<<4);
@ -921,18 +944,9 @@ void SoftRenderer::RenderPolygonScanline(RendererPolygon* rp, s32 y, bool odd)
PrevIsShadowMask = false;
if (polygon->YTop != polygon->YBottom)
{
if (y >= polygon->Vertices[rp->NextVL]->FinalPosition[1] && rp->CurVL != polygon->VBottom)
{
SetupPolygonLeftEdge(rp, y);
}
if (y >= polygon->Vertices[rp->NextVR]->FinalPosition[1] && rp->CurVR != polygon->VBottom)
{
SetupPolygonRightEdge(rp, y);
}
}
CheckSlope(rp, y);
if (GPU.GPU3D.DoTimings(PerPolyTiming, odd)) return Step(rp, true);
Vertex *vlcur, *vlnext, *vrcur, *vrnext;
s32 xstart, xend;
@ -941,6 +955,7 @@ void SoftRenderer::RenderPolygonScanline(RendererPolygon* rp, s32 y, bool odd)
s32 l_edgecov, r_edgecov;
Interpolator<1>* interp_start;
Interpolator<1>* interp_end;
u8 pixelsrendered = 0; // for tracking timings
xstart = rp->XL;
xend = rp->XR;
@ -1076,11 +1091,12 @@ void SoftRenderer::RenderPolygonScanline(RendererPolygon* rp, s32 y, bool odd)
xcov = (l_edgecov >> 12) & 0x3FF;
if (xcov == 0x3FF) xcov = 0;
}
for (; x < xlimit; x++)
{
if (pixelsrendered >= 4 && GPU.GPU3D.DoTimings(PerPixelTiming, odd)) return;
pixelsrendered++;
if (pixelsrendered >= 4 && GPU.GPU3D.DoTimings(PerPixelTiming, odd)) return Step(rp, true);
else pixelsrendered++;
if (!l_filledge) continue;
u32 pixeladdr = FirstPixelOffset + (y*ScanlineWidth) + x;
u32 dstattr = AttrBuffer[pixeladdr];
@ -1176,8 +1192,8 @@ void SoftRenderer::RenderPolygonScanline(RendererPolygon* rp, s32 y, bool odd)
for (; x < xlimit; x++)
{
if (pixelsrendered >= 4 && GPU.GPU3D.DoTimings(PerPixelTiming, odd)) return;
pixelsrendered++;
if (pixelsrendered >= 4 && GPU.GPU3D.DoTimings(PerPixelTiming, odd)) return Step(rp, true);
else pixelsrendered++;
if (wireframe && !edge) continue;
u32 pixeladdr = FirstPixelOffset + (y*ScanlineWidth) + x;
u32 dstattr = AttrBuffer[pixeladdr];
@ -1270,8 +1286,8 @@ void SoftRenderer::RenderPolygonScanline(RendererPolygon* rp, s32 y, bool odd)
for (; x < xlimit; x++)
{
if (pixelsrendered >= 4 && GPU.GPU3D.DoTimings(PerPixelTiming, odd)) return;
pixelsrendered++;
if (pixelsrendered >= 4 && GPU.GPU3D.DoTimings(PerPixelTiming, odd)) return Step(rp, true);
else pixelsrendered++;
if (!r_filledge) continue;
u32 pixeladdr = FirstPixelOffset + (y*ScanlineWidth) + x;
u32 dstattr = AttrBuffer[pixeladdr];
@ -1358,27 +1374,33 @@ void SoftRenderer::RenderPolygonScanline(RendererPolygon* rp, s32 y, bool odd)
PlotTranslucentPixel(pixeladdr+BufferSize, color, z, polyattr, polygon->IsShadow);
}
}
rp->XL = rp->SlopeL.Step();
rp->XR = rp->SlopeR.Step();
return Step(rp, false);
}
void SoftRenderer::RenderScanline(s32 y, int npolys)
{
bool odd = !(y % 2);
bool abort = false;
for (int i = 0; i < npolys; i++)
{
if (GPU.GPU3D.DoTimings(0, odd)) break;
RendererPolygon* rp = &PolygonList[i];
Polygon* polygon = rp->PolyData;
if (y >= polygon->YTop && (y < polygon->YBottom || (y == polygon->YTop && polygon->YBottom == polygon->YTop)))
if (abort)
{
CheckSlope(rp, y);
Step(rp, NULL);
}
else if (y == polygon->YBottom && y != polygon->YTop)
{
if (GPU.GPU3D.DoTimings(EmptyPolyScanline, odd)) abort = true;
}
else if (y >= polygon->YTop && (y < polygon->YBottom || (y == polygon->YTop && polygon->YBottom == polygon->YTop)))
{
if (polygon->IsShadowMask)
RenderShadowMaskScanline(rp, y);
else
RenderPolygonScanline(rp, y, odd);
if (RenderPolygonScanline(rp, y, odd)) abort = true;
}
}
GPU.GPU3D.EndScanline(odd);

4
src/GPU3D_Soft.h
View File

@ -460,8 +460,10 @@ private:
void SetupPolygonLeftEdge(RendererPolygon* rp, s32 y);
void SetupPolygonRightEdge(RendererPolygon* rp, s32 y);
void SetupPolygon(RendererPolygon* rp, Polygon* polygon);
bool Step(RendererPolygon* rp, bool abortscanline);
void CheckSlope(RendererPolygon* rp, s32 y);
void RenderShadowMaskScanline(RendererPolygon* rp, s32 y);
void RenderPolygonScanline(RendererPolygon* rp, s32 y, bool odd);
bool RenderPolygonScanline(RendererPolygon* rp, s32 y, bool odd);
void RenderScanline(s32 y, int npolys);
u32 CalculateFogDensity(u32 pixeladdr);
void ScanlineFinalPass(s32 y);