diff options
Diffstat (limited to 'src/GPU3D_Soft.cpp')
| -rw-r--r-- | src/GPU3D_Soft.cpp | 24 |
1 files changed, 16 insertions, 8 deletions
diff --git a/src/GPU3D_Soft.cpp b/src/GPU3D_Soft.cpp index ab7f517..b12ed8c 100644 --- a/src/GPU3D_Soft.cpp +++ b/src/GPU3D_Soft.cpp @@ -1049,10 +1049,12 @@ void RenderPolygonScanline(RendererPolygon* rp, s32 y) Interpolator interpX(xstart, xend+1, wl, wr, 8); if (x < 0) x = 0; + s32 xlimit; // part 1: left edge edge = yedge | 0x1; - for (; x < xstart+l_edgelen; x++) + xlimit = xstart+l_edgelen; if (xlimit > 256) xlimit = 256; + for (; x < xlimit; x++) { u32 pixeladdr = FirstPixelOffset + (y*ScanlineWidth) + x; u32 attr = (polygon->Attr & 0x3F008000); @@ -1180,8 +1182,9 @@ void RenderPolygonScanline(RendererPolygon* rp, s32 y) // part 2: polygon inside edge = yedge; - if (wireframe && !edge) x = xend-r_edgelen+1; - else for (; x <= xend-r_edgelen; x++) + xlimit = xend-r_edgelen+1; if (xlimit > 256) xlimit = 256; + if (wireframe && !edge) x = xlimit; + else for (; x < xlimit; x++) { u32 pixeladdr = FirstPixelOffset + (y*ScanlineWidth) + x; u32 attr = (polygon->Attr & 0x3F008000); @@ -1268,11 +1271,10 @@ void RenderPolygonScanline(RendererPolygon* rp, s32 y) AttrBuffer[pixeladdr] = attr; } - if (xend > 255) xend = 255; - // part 3: right edge edge = yedge | 0x2; - for (; x <= xend; x++) + xlimit = xend+1; if (xlimit > 256) xlimit = 256; + for (; x < xlimit; x++) { u32 pixeladdr = FirstPixelOffset + (y*ScanlineWidth) + x; u32 attr = (polygon->Attr & 0x3F008000); @@ -1679,23 +1681,29 @@ void RenderPolygons(bool threaded, Polygon* polygons, int npolys) // TODO: Y-sorting for translucent polygons // TODO: all sorting should be done in GPU3D.cpp + // polygons with ybottom>192 aren't rendered at all + int j = 0; for (int i = 0; i < npolys; i++) { if (polygons[i].Translucent) continue; + + if (polygons[i].YBottom > 192) continue; SetupPolygon(&PolygonList[j++], &polygons[i]); } for (int i = 0; i < npolys; i++) { if (!polygons[i].Translucent) continue; + + if (polygons[i].YBottom > 192) continue; SetupPolygon(&PolygonList[j++], &polygons[i]); } - RenderScanline(0, npolys); + RenderScanline(0, j); for (s32 y = 1; y < 192; y++) { - RenderScanline(y, npolys); + RenderScanline(y, j); ScanlineFinalPass(y-1); if (threaded) |