From ab463712474de5f99eec137a9c6233e55fe184f0 Mon Sep 17 00:00:00 2001 From: ReinUsesLisp Date: Mon, 8 Mar 2021 18:31:53 -0300 Subject: shader: Initial support for textures and TEX --- .../backend/spirv/emit_spirv_image.cpp | 146 +++++++++++++++++++++ 1 file changed, 146 insertions(+) create mode 100644 src/shader_recompiler/backend/spirv/emit_spirv_image.cpp (limited to 'src/shader_recompiler/backend/spirv/emit_spirv_image.cpp') diff --git a/src/shader_recompiler/backend/spirv/emit_spirv_image.cpp b/src/shader_recompiler/backend/spirv/emit_spirv_image.cpp new file mode 100644 index 000000000..5f4783c95 --- /dev/null +++ b/src/shader_recompiler/backend/spirv/emit_spirv_image.cpp @@ -0,0 +1,146 @@ +// Copyright 2021 yuzu Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#include + +#include "shader_recompiler/backend/spirv/emit_spirv.h" +#include "shader_recompiler/frontend/ir/modifiers.h" + +namespace Shader::Backend::SPIRV { +namespace { +class ImageOperands { +public: + explicit ImageOperands(EmitContext& ctx, bool has_bias, bool has_lod, bool has_lod_clamp, + Id lod, Id offset) { + if (has_bias) { + const Id bias{has_lod_clamp ? ctx.OpCompositeExtract(ctx.F32[1], lod, 0) : lod}; + Add(spv::ImageOperandsMask::Bias, bias); + } + if (has_lod) { + const Id lod_value{has_lod_clamp ? ctx.OpCompositeExtract(ctx.F32[1], lod, 0) : lod}; + Add(spv::ImageOperandsMask::Lod, lod_value); + } + if (Sirit::ValidId(offset)) { + Add(spv::ImageOperandsMask::Offset, offset); + } + if (has_lod_clamp) { + const Id lod_clamp{has_bias ? ctx.OpCompositeExtract(ctx.F32[1], lod, 1) : lod}; + Add(spv::ImageOperandsMask::MinLod, lod_clamp); + } + } + + void Add(spv::ImageOperandsMask new_mask, Id value) { + mask = static_cast(static_cast(mask) | + static_cast(new_mask)); + operands.push_back(value); + } + + std::span Span() const noexcept { + return std::span{operands.data(), operands.size()}; + } + + spv::ImageOperandsMask Mask() const noexcept { + return mask; + } + +private: + boost::container::static_vector operands; + spv::ImageOperandsMask mask{}; +}; + +Id Texture(EmitContext& ctx, const IR::Value& index) { + if (index.IsImmediate()) { + const TextureDefinition def{ctx.textures.at(index.U32())}; + return ctx.OpLoad(def.type, def.id); + } + throw NotImplementedException("Indirect texture sample"); +} + +template +Id Emit(MethodPtrType sparse_ptr, MethodPtrType non_sparse_ptr, EmitContext& ctx, IR::Inst* inst, + Id result_type, Args&&... args) { + IR::Inst* const sparse{inst->GetAssociatedPseudoOperation(IR::Opcode::GetSparseFromOp)}; + if (!sparse) { + return (ctx.*non_sparse_ptr)(result_type, std::forward(args)...); + } + const Id struct_type{ctx.TypeStruct(ctx.U32[1], result_type)}; + const Id sample{(ctx.*sparse_ptr)(struct_type, std::forward(args)...)}; + const Id resident_code{ctx.OpCompositeExtract(ctx.U32[1], sample, 0U)}; + sparse->SetDefinition(ctx.OpImageSparseTexelsResident(ctx.U1, resident_code)); + sparse->Invalidate(); + return ctx.OpCompositeExtract(result_type, sample, 1U); +} +} // Anonymous namespace + +Id EmitBindlessImageSampleImplicitLod(EmitContext&) { + throw LogicError("Unreachable instruction"); +} + +Id EmitBindlessImageSampleExplicitLod(EmitContext&) { + throw LogicError("Unreachable instruction"); +} + +Id EmitBindlessImageSampleDrefImplicitLod(EmitContext&) { + throw LogicError("Unreachable instruction"); +} + +Id EmitBindlessImageSampleDrefExplicitLod(EmitContext&) { + throw LogicError("Unreachable instruction"); +} + +Id EmitBoundImageSampleImplicitLod(EmitContext&) { + throw LogicError("Unreachable instruction"); +} + +Id EmitBoundImageSampleExplicitLod(EmitContext&) { + throw LogicError("Unreachable instruction"); +} + +Id EmitBoundImageSampleDrefImplicitLod(EmitContext&) { + throw LogicError("Unreachable instruction"); +} + +Id EmitBoundImageSampleDrefExplicitLod(EmitContext&) { + throw LogicError("Unreachable instruction"); +} + +Id EmitImageSampleImplicitLod(EmitContext& ctx, IR::Inst* inst, const IR::Value& index, Id coords, + Id bias_lc, Id offset) { + const auto info{inst->Flags()}; + const ImageOperands operands(ctx, info.has_bias != 0, false, info.has_lod_clamp != 0, bias_lc, + offset); + return Emit(&EmitContext::OpImageSparseSampleImplicitLod, + &EmitContext::OpImageSampleImplicitLod, ctx, inst, ctx.F32[4], Texture(ctx, index), + coords, operands.Mask(), operands.Span()); +} + +Id EmitImageSampleExplicitLod(EmitContext& ctx, IR::Inst* inst, const IR::Value& index, Id coords, + Id lod_lc, Id offset) { + const auto info{inst->Flags()}; + const ImageOperands operands(ctx, false, true, info.has_lod_clamp != 0, lod_lc, offset); + return Emit(&EmitContext::OpImageSparseSampleExplicitLod, + &EmitContext::OpImageSampleExplicitLod, ctx, inst, ctx.F32[4], Texture(ctx, index), + coords, operands.Mask(), operands.Span()); +} + +Id EmitImageSampleDrefImplicitLod(EmitContext& ctx, IR::Inst* inst, const IR::Value& index, + Id coords, Id dref, Id bias_lc, Id offset) { + const auto info{inst->Flags()}; + const ImageOperands operands(ctx, info.has_bias != 0, false, info.has_lod_clamp != 0, bias_lc, + offset); + return Emit(&EmitContext::OpImageSparseSampleDrefImplicitLod, + &EmitContext::OpImageSampleDrefImplicitLod, ctx, inst, ctx.F32[1], + Texture(ctx, index), coords, dref, operands.Mask(), operands.Span()); +} + +Id EmitImageSampleDrefExplicitLod(EmitContext& ctx, IR::Inst* inst, const IR::Value& index, + Id coords, Id dref, Id lod_lc, Id offset) { + const auto info{inst->Flags()}; + const ImageOperands operands(ctx, false, true, info.has_lod_clamp != 0, lod_lc, offset); + return Emit(&EmitContext::OpImageSparseSampleDrefExplicitLod, + &EmitContext::OpImageSampleDrefExplicitLod, ctx, inst, ctx.F32[1], + Texture(ctx, index), coords, dref, operands.Mask(), operands.Span()); +} + +} // namespace Shader::Backend::SPIRV -- cgit v1.2.3