diff options
Diffstat (limited to 'GPU3D_Soft.cpp')
| -rw-r--r-- | GPU3D_Soft.cpp | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/GPU3D_Soft.cpp b/GPU3D_Soft.cpp index 4549d4d..6ea1ba4 100644 --- a/GPU3D_Soft.cpp +++ b/GPU3D_Soft.cpp @@ -250,15 +250,15 @@ void RenderPolygon(Polygon* polygon) if (vlnext->FinalPosition[1] == vlcur->FinalPosition[1]) lfactor = 0; else - lfactor = (((y - vlcur->FinalPosition[1]) << 12) + 0x00) / (vlnext->FinalPosition[1] - vlcur->FinalPosition[1]); + lfactor = (((y+1 - vlcur->FinalPosition[1]) << 12) + 0x00) / (vlnext->FinalPosition[1] - vlcur->FinalPosition[1]); if (vrnext->FinalPosition[1] == vrcur->FinalPosition[1]) rfactor = 0; else - rfactor = (((y - vrcur->FinalPosition[1]) << 12) + 0x00) / (vrnext->FinalPosition[1] - vrcur->FinalPosition[1]); + rfactor = (((y+1 - vrcur->FinalPosition[1]) << 12) + 0x00) / (vrnext->FinalPosition[1] - vrcur->FinalPosition[1]); - s32 xl = vlcur->FinalPosition[0] + (((vlnext->FinalPosition[0] - vlcur->FinalPosition[0]) * lfactor) >> 12); - s32 xr = vrcur->FinalPosition[0] + (((vrnext->FinalPosition[0] - vrcur->FinalPosition[0]) * rfactor) >> 12); + s32 xl = vlcur->FinalPosition[0] + ((((vlnext->FinalPosition[0] - vlcur->FinalPosition[0]) * lfactor) + 0x800) >> 12); + s32 xr = vrcur->FinalPosition[0] + ((((vrnext->FinalPosition[0] - vrcur->FinalPosition[0]) * rfactor) + 0x800) >> 12); //printf("y:%d xl:%d xr:%d %08X\n", y, xl, xr, rfactor); // y: 48 143 if (xl > xr) // TODO: handle it in a more elegant way { |