diff options
| author | Fernando Sahmkow <fsahmkow27@gmail.com> | 2023-08-18 18:30:31 +0200 |
|---|---|---|
| committer | Liam <byteslice@airmail.cc> | 2023-08-18 22:17:02 -0400 |
| commit | c03f0b3c893f2bc2ae4f1e1825c5ac1453c36710 (patch) | |
| tree | 3f7f14fad6574878a7c0f94fbe16d574b61cb95a /src/shader_recompiler/backend/glasm/emit_glasm_image.cpp | |
| parent | ae1421265abe1fd5633cab5a54b59dcd818866c7 (diff) | |
Shader Recomnpiler: implement textuzreGrad 3D emulation constant propagation
Diffstat (limited to 'src/shader_recompiler/backend/glasm/emit_glasm_image.cpp')
| -rw-r--r-- | src/shader_recompiler/backend/glasm/emit_glasm_image.cpp | 23 |
1 files changed, 19 insertions, 4 deletions
diff --git a/src/shader_recompiler/backend/glasm/emit_glasm_image.cpp b/src/shader_recompiler/backend/glasm/emit_glasm_image.cpp index 85ee273339..d0e3081249 100644 --- a/src/shader_recompiler/backend/glasm/emit_glasm_image.cpp +++ b/src/shader_recompiler/backend/glasm/emit_glasm_image.cpp @@ -558,12 +558,15 @@ void EmitImageGradient(EmitContext& ctx, IR::Inst& inst, const IR::Value& index, const IR::Value& coord, const IR::Value& derivatives, const IR::Value& offset, const IR::Value& lod_clamp) { const auto info{inst.Flags<IR::TextureInstInfo>()}; - ScopedRegister dpdx, dpdy; + ScopedRegister dpdx, dpdy, coords; const bool multi_component{info.num_derivates > 1 || info.has_lod_clamp}; if (multi_component) { // Allocate this early to avoid aliasing other registers dpdx = ScopedRegister{ctx.reg_alloc}; dpdy = ScopedRegister{ctx.reg_alloc}; + if (info.num_derivates >= 3) { + coords = ScopedRegister{ctx.reg_alloc}; + } } const auto sparse_inst{PrepareSparse(inst)}; const std::string_view sparse_mod{sparse_inst ? ".SPARSE" : ""}; @@ -580,15 +583,27 @@ void EmitImageGradient(EmitContext& ctx, IR::Inst& inst, const IR::Value& index, "MOV.F {}.y,{}.w;", dpdx.reg, derivatives_vec, dpdx.reg, derivatives_vec, dpdy.reg, derivatives_vec, dpdy.reg, derivatives_vec); + Register final_coord; + if (info.num_derivates >= 3) { + ctx.Add("MOV.F {}.z,{}.x;" + "MOV.F {}.z,{}.y;", + dpdx.reg, coord_vec, dpdy.reg, coord_vec); + ctx.Add("MOV.F {}.x,0;" + "MOV.F {}.y,0;", + "MOV.F {}.z,0;", coords.reg, coords.reg, coords.reg); + final_coord = coords.reg; + } else { + final_coord = coord_vec; + } if (info.has_lod_clamp) { const ScalarF32 lod_clamp_value{ctx.reg_alloc.Consume(lod_clamp)}; ctx.Add("MOV.F {}.w,{};" "TXD.F.LODCLAMP{} {},{},{},{},{},{}{};", - dpdy.reg, lod_clamp_value, sparse_mod, ret, coord_vec, dpdx.reg, dpdy.reg, + dpdy.reg, lod_clamp_value, sparse_mod, ret, final_coord, dpdx.reg, dpdy.reg, texture, type, offset_vec); } else { - ctx.Add("TXD.F{} {},{},{},{},{},{}{};", sparse_mod, ret, coord_vec, dpdx.reg, dpdy.reg, - texture, type, offset_vec); + ctx.Add("TXD.F{} {},{},{},{},{},{}{};", sparse_mod, ret, final_coord, dpdx.reg, + dpdy.reg, texture, type, offset_vec); } } else { ctx.Add("TXD.F{} {},{},{}.x,{}.y,{},{}{};", sparse_mod, ret, coord_vec, derivatives_vec, |