diff options
Diffstat (limited to '')
| -rw-r--r-- | src/shader_recompiler/backend/glasm/emit_glasm_image.cpp | 67 | ||||
| -rw-r--r-- | src/shader_recompiler/backend/glasm/emit_glasm_instructions.h | 5 |
2 files changed, 65 insertions, 7 deletions
diff --git a/src/shader_recompiler/backend/glasm/emit_glasm_image.cpp b/src/shader_recompiler/backend/glasm/emit_glasm_image.cpp index 747af84fe..ab5a694fd 100644 --- a/src/shader_recompiler/backend/glasm/emit_glasm_image.cpp +++ b/src/shader_recompiler/backend/glasm/emit_glasm_image.cpp @@ -127,6 +127,27 @@ void SwizzleOffsets(EmitContext& ctx, Register off_x, Register off_y, const IR:: offsets_a, off_y, offsets_a, off_y, offsets_b, off_y, offsets_b); } +std::string GradOffset(const IR::Value& offset) { + if (offset.IsImmediate()) { + // LOG_WARNING immediate + return ""; + } + IR::Inst* const vector{offset.InstRecursive()}; + if (!vector->AreAllArgsImmediates()) { + // LOG_WARNING elements not immediate + return ""; + } + switch (vector->NumArgs()) { + case 1: + return fmt::format(",({})", static_cast<s32>(vector->Arg(0).U32())); + case 2: + return fmt::format(",({},{})", static_cast<s32>(vector->Arg(0).U32()), + static_cast<s32>(vector->Arg(1).U32())); + default: + throw LogicError("Invalid number of gradient offsets {}", vector->NumArgs()); + } +} + std::pair<std::string, ScopedRegister> Coord(EmitContext& ctx, const IR::Value& coord) { if (coord.IsImmediate()) { ScopedRegister scoped_reg(ctx.reg_alloc); @@ -464,11 +485,47 @@ void EmitImageQueryLod(EmitContext& ctx, IR::Inst& inst, const IR::Value& index, ctx.Add("LOD.F {},{},{},{};", inst, coord, texture, type); } -void EmitImageGradient([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst, - [[maybe_unused]] const IR::Value& index, [[maybe_unused]] Register coord, - [[maybe_unused]] Register derivates, [[maybe_unused]] Register offset, - [[maybe_unused]] Register lod_clamp) { - throw NotImplementedException("GLASM instruction"); +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; + 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}; + } + const auto sparse_inst{inst.GetAssociatedPseudoOperation(IR::Opcode::GetSparseFromOp)}; + const std::string_view sparse_mod{sparse_inst ? ".SPARSE" : ""}; + const std::string_view type{TextureType(info)}; + const std::string texture{Texture(ctx, info, index)}; + const std::string offset_vec{GradOffset(offset)}; + const Register coord_vec{ctx.reg_alloc.Consume(coord)}; + const Register derivatives_vec{ctx.reg_alloc.Consume(derivatives)}; + const Register ret{ctx.reg_alloc.Define(inst)}; + if (multi_component) { + ctx.Add("MOV.F {}.x,{}.x;" + "MOV.F {}.y,{}.z;" + "MOV.F {}.x,{}.y;" + "MOV.F {}.y,{}.w;", + dpdx.reg, derivatives_vec, dpdx.reg, derivatives_vec, dpdy.reg, derivatives_vec, + dpdy.reg, derivatives_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, + texture, type, offset_vec); + } else { + ctx.Add("TXD.F{} {},{},{},{},{},{}{};", sparse_mod, ret, coord_vec, dpdx.reg, dpdy.reg, + texture, type, offset_vec); + } + } else { + ctx.Add("TXD.F{} {},{},{}.x,{}.y,{},{}{};", sparse_mod, ret, coord_vec, derivatives_vec, + derivatives_vec, texture, type, offset_vec); + } + StoreSparse(ctx, sparse_inst); } void EmitImageRead([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst, diff --git a/src/shader_recompiler/backend/glasm/emit_glasm_instructions.h b/src/shader_recompiler/backend/glasm/emit_glasm_instructions.h index 94e545ad4..7ccba4c6f 100644 --- a/src/shader_recompiler/backend/glasm/emit_glasm_instructions.h +++ b/src/shader_recompiler/backend/glasm/emit_glasm_instructions.h @@ -548,8 +548,9 @@ void EmitImageFetch(EmitContext& ctx, IR::Inst& inst, const IR::Value& index, void EmitImageQueryDimensions(EmitContext& ctx, IR::Inst& inst, const IR::Value& index, ScalarF32 lod); void EmitImageQueryLod(EmitContext& ctx, IR::Inst& inst, const IR::Value& index, Register coord); -void EmitImageGradient(EmitContext& ctx, IR::Inst& inst, const IR::Value& index, Register coord, - Register derivates, Register offset, Register lod_clamp); +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); void EmitImageRead(EmitContext& ctx, IR::Inst& inst, const IR::Value& index, Register coord); void EmitImageWrite(EmitContext& ctx, IR::Inst& inst, const IR::Value& index, Register coord, Register color); |