diff options
| author | Tony Wasserka <NeoBrainX@gmail.com> | 2013-10-10 21:09:00 +0200 |
|---|---|---|
| committer | Tony Wasserka <NeoBrainX@gmail.com> | 2014-03-14 22:31:18 +0100 |
| commit | 0238a568162099f0ee1db3d584e42db734f4e509 (patch) | |
| tree | eea6fbc136ebe34e84aa131c1e4ee40860370016 /Source/Core/VideoBackends/Software/Tev.cpp | |
| parent | c13a5c38e9ab997f21b84c2ce64772b66cc3cfc9 (diff) | |
PixelShaderGen: Change indirect texture matrix uniforms to use integers.
Diffstat (limited to 'Source/Core/VideoBackends/Software/Tev.cpp')
| -rw-r--r-- | Source/Core/VideoBackends/Software/Tev.cpp | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/Source/Core/VideoBackends/Software/Tev.cpp b/Source/Core/VideoBackends/Software/Tev.cpp index 0c80e04c93..49899f642c 100644 --- a/Source/Core/VideoBackends/Software/Tev.cpp +++ b/Source/Core/VideoBackends/Software/Tev.cpp @@ -544,19 +544,21 @@ void Tev::Indirect(unsigned int stageNum, s32 s, s32 t) switch (indirect.mid & 12) { case 0: - shift = 3 + (17 - scale); - indtevtrans[0] = indmtx.col0.ma * indcoord[0] + indmtx.col1.mc * indcoord[1] + indmtx.col2.me * indcoord[2]; - indtevtrans[1] = indmtx.col0.mb * indcoord[0] + indmtx.col1.md * indcoord[1] + indmtx.col2.mf * indcoord[2]; + // matrix values are S0.10, output format is S17.7, so divide by 8 + shift = (17 - scale); + indtevtrans[0] = (indmtx.col0.ma * indcoord[0] + indmtx.col1.mc * indcoord[1] + indmtx.col2.me * indcoord[2]) >> 3; + indtevtrans[1] = (indmtx.col0.mb * indcoord[0] + indmtx.col1.md * indcoord[1] + indmtx.col2.mf * indcoord[2]) >> 3; break; case 4: // s matrix - shift = 8 + (17 - scale); - indtevtrans[0] = s * indcoord[0]; - indtevtrans[1] = t * indcoord[0]; + // s is S17.7, matrix elements are divided by 256, output is S17.7, so divide by 256. - TODO: Maybe, since s is actually stored as S24, we should divide by 256*64? + shift = (17 - scale); + indtevtrans[0] = s * indcoord[0] / 256; + indtevtrans[1] = t * indcoord[0] / 256; break; case 8: // t matrix - shift = 8 + (17 - scale); - indtevtrans[0] = s * indcoord[1]; - indtevtrans[1] = t * indcoord[1]; + shift = (17 - scale); + indtevtrans[0] = s * indcoord[1] / 256; + indtevtrans[1] = t * indcoord[1] / 256; break; default: return; |