shader: Remove old shader management

1 files changed, 0 insertions, 368 deletions

diff --git a/src/video_core/shader/decode.cpp b/src/video_core/shader/decode.cpp
deleted file mode 100644
index 6576d1208..000000000
--- a/src/video_core/shader/decode.cpp
+++ /dev/null
@@ -1,368 +0,0 @@
-// Copyright 2018 yuzu Emulator Project
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#include <cstring>
-#include <limits>
-#include <set>
-
-#include <fmt/format.h>
-
-#include "common/assert.h"
-#include "common/common_types.h"
-#include "video_core/engines/shader_bytecode.h"
-#include "video_core/engines/shader_header.h"
-#include "video_core/shader/control_flow.h"
-#include "video_core/shader/memory_util.h"
-#include "video_core/shader/node_helper.h"
-#include "video_core/shader/shader_ir.h"
-
-namespace VideoCommon::Shader {
-
-using Tegra::Shader::Instruction;
-using Tegra::Shader::OpCode;
-
-namespace {
-
-void DeduceTextureHandlerSize(VideoCore::GuestDriverProfile& gpu_driver,
-                              const std::list<SamplerEntry>& used_samplers) {
-    if (gpu_driver.IsTextureHandlerSizeKnown() || used_samplers.size() <= 1) {
-        return;
-    }
-    u32 count{};
-    std::vector<u32> bound_offsets;
-    for (const auto& sampler : used_samplers) {
-        if (sampler.is_bindless) {
-            continue;
-        }
-        ++count;
-        bound_offsets.emplace_back(sampler.offset);
-    }
-    if (count > 1) {
-        gpu_driver.DeduceTextureHandlerSize(std::move(bound_offsets));
-    }
-}
-
-std::optional<u32> TryDeduceSamplerSize(const SamplerEntry& sampler_to_deduce,
-                                        VideoCore::GuestDriverProfile& gpu_driver,
-                                        const std::list<SamplerEntry>& used_samplers) {
-    const u32 base_offset = sampler_to_deduce.offset;
-    u32 max_offset{std::numeric_limits<u32>::max()};
-    for (const auto& sampler : used_samplers) {
-        if (sampler.is_bindless) {
-            continue;
-        }
-        if (sampler.offset > base_offset) {
-            max_offset = std::min(sampler.offset, max_offset);
-        }
-    }
-    if (max_offset == std::numeric_limits<u32>::max()) {
-        return std::nullopt;
-    }
-    return ((max_offset - base_offset) * 4) / gpu_driver.GetTextureHandlerSize();
-}
-
-} // Anonymous namespace
-
-class ASTDecoder {
-public:
-    explicit ASTDecoder(ShaderIR& ir_) : ir(ir_) {}
-
-    void operator()(ASTProgram& ast) {
-        ASTNode current = ast.nodes.GetFirst();
-        while (current) {
-            Visit(current);
-            current = current->GetNext();
-        }
-    }
-
-    void operator()(ASTIfThen& ast) {
-        ASTNode current = ast.nodes.GetFirst();
-        while (current) {
-            Visit(current);
-            current = current->GetNext();
-        }
-    }
-
-    void operator()(ASTIfElse& ast) {
-        ASTNode current = ast.nodes.GetFirst();
-        while (current) {
-            Visit(current);
-            current = current->GetNext();
-        }
-    }
-
-    void operator()(ASTBlockEncoded& ast) {}
-
-    void operator()(ASTBlockDecoded& ast) {}
-
-    void operator()(ASTVarSet& ast) {}
-
-    void operator()(ASTLabel& ast) {}
-
-    void operator()(ASTGoto& ast) {}
-
-    void operator()(ASTDoWhile& ast) {
-        ASTNode current = ast.nodes.GetFirst();
-        while (current) {
-            Visit(current);
-            current = current->GetNext();
-        }
-    }
-
-    void operator()(ASTReturn& ast) {}
-
-    void operator()(ASTBreak& ast) {}
-
-    void Visit(ASTNode& node) {
-        std::visit(*this, *node->GetInnerData());
-        if (node->IsBlockEncoded()) {
-            auto block = std::get_if<ASTBlockEncoded>(node->GetInnerData());
-            NodeBlock bb = ir.DecodeRange(block->start, block->end);
-            node->TransformBlockEncoded(std::move(bb));
-        }
-    }
-
-private:
-    ShaderIR& ir;
-};
-
-void ShaderIR::Decode() {
-    std::memcpy(&header, program_code.data(), sizeof(Tegra::Shader::Header));
-
-    decompiled = false;
-    auto info = ScanFlow(program_code, main_offset, settings, registry);
-    auto& shader_info = *info;
-    coverage_begin = shader_info.start;
-    coverage_end = shader_info.end;
-    switch (shader_info.settings.depth) {
-    case CompileDepth::FlowStack: {
-        for (const auto& block : shader_info.blocks) {
-            basic_blocks.insert({block.start, DecodeRange(block.start, block.end + 1)});
-        }
-        break;
-    }
-    case CompileDepth::NoFlowStack: {
-        disable_flow_stack = true;
-        const auto insert_block = [this](NodeBlock& nodes, u32 label) {
-            if (label == static_cast<u32>(exit_branch)) {
-                return;
-            }
-            basic_blocks.insert({label, nodes});
-        };
-        const auto& blocks = shader_info.blocks;
-        NodeBlock current_block;
-        u32 current_label = static_cast<u32>(exit_branch);
-        for (const auto& block : blocks) {
-            if (shader_info.labels.contains(block.start)) {
-                insert_block(current_block, current_label);
-                current_block.clear();
-                current_label = block.start;
-            }
-            if (!block.ignore_branch) {
-                DecodeRangeInner(current_block, block.start, block.end);
-                InsertControlFlow(current_block, block);
-            } else {
-                DecodeRangeInner(current_block, block.start, block.end + 1);
-            }
-        }
-        insert_block(current_block, current_label);
-        break;
-    }
-    case CompileDepth::DecompileBackwards:
-    case CompileDepth::FullDecompile: {
-        program_manager = std::move(shader_info.manager);
-        disable_flow_stack = true;
-        decompiled = true;
-        ASTDecoder decoder{*this};
-        ASTNode program = GetASTProgram();
-        decoder.Visit(program);
-        break;
-    }
-    default:
-        LOG_CRITICAL(HW_GPU, "Unknown decompilation mode!");
-        [[fallthrough]];
-    case CompileDepth::BruteForce: {
-        const auto shader_end = static_cast<u32>(program_code.size());
-        coverage_begin = main_offset;
-        coverage_end = shader_end;
-        for (u32 label = main_offset; label < shader_end; ++label) {
-            basic_blocks.insert({label, DecodeRange(label, label + 1)});
-        }
-        break;
-    }
-    }
-    if (settings.depth != shader_info.settings.depth) {
-        LOG_WARNING(
-            HW_GPU, "Decompiling to this setting \"{}\" failed, downgrading to this setting \"{}\"",
-            CompileDepthAsString(settings.depth), CompileDepthAsString(shader_info.settings.depth));
-    }
-}
-
-NodeBlock ShaderIR::DecodeRange(u32 begin, u32 end) {
-    NodeBlock basic_block;
-    DecodeRangeInner(basic_block, begin, end);
-    return basic_block;
-}
-
-void ShaderIR::DecodeRangeInner(NodeBlock& bb, u32 begin, u32 end) {
-    for (u32 pc = begin; pc < (begin > end ? MAX_PROGRAM_LENGTH : end);) {
-        pc = DecodeInstr(bb, pc);
-    }
-}
-
-void ShaderIR::InsertControlFlow(NodeBlock& bb, const ShaderBlock& block) {
-    const auto apply_conditions = [&](const Condition& cond, Node n) -> Node {
-        Node result = n;
-        if (cond.cc != ConditionCode::T) {
-            result = Conditional(GetConditionCode(cond.cc), {result});
-        }
-        if (cond.predicate != Pred::UnusedIndex) {
-            u32 pred = static_cast<u32>(cond.predicate);
-            const bool is_neg = pred > 7;
-            if (is_neg) {
-                pred -= 8;
-            }
-            result = Conditional(GetPredicate(pred, is_neg), {result});
-        }
-        return result;
-    };
-    if (std::holds_alternative<SingleBranch>(*block.branch)) {
-        auto branch = std::get_if<SingleBranch>(block.branch.get());
-        if (branch->address < 0) {
-            if (branch->kill) {
-                Node n = Operation(OperationCode::Discard);
-                n = apply_conditions(branch->condition, n);
-                bb.push_back(n);
-                global_code.push_back(n);
-                return;
-            }
-            Node n = Operation(OperationCode::Exit);
-            n = apply_conditions(branch->condition, n);
-            bb.push_back(n);
-            global_code.push_back(n);
-            return;
-        }
-        Node n = Operation(OperationCode::Branch, Immediate(branch->address));
-        n = apply_conditions(branch->condition, n);
-        bb.push_back(n);
-        global_code.push_back(n);
-        return;
-    }
-    auto multi_branch = std::get_if<MultiBranch>(block.branch.get());
-    Node op_a = GetRegister(multi_branch->gpr);
-    for (auto& branch_case : multi_branch->branches) {
-        Node n = Operation(OperationCode::Branch, Immediate(branch_case.address));
-        Node op_b = Immediate(branch_case.cmp_value);
-        Node condition =
-            GetPredicateComparisonInteger(Tegra::Shader::PredCondition::EQ, false, op_a, op_b);
-        auto result = Conditional(condition, {n});
-        bb.push_back(result);
-        global_code.push_back(result);
-    }
-}
-
-u32 ShaderIR::DecodeInstr(NodeBlock& bb, u32 pc) {
-    // Ignore sched instructions when generating code.
-    if (IsSchedInstruction(pc, main_offset)) {
-        return pc + 1;
-    }
-
-    const Instruction instr = {program_code[pc]};
-    const auto opcode = OpCode::Decode(instr);
-    const u32 nv_address = ConvertAddressToNvidiaSpace(pc);
-
-    // Decoding failure
-    if (!opcode) {
-        UNIMPLEMENTED_MSG("Unhandled instruction: {0:x}", instr.value);
-        bb.push_back(Comment(fmt::format("{:05x} Unimplemented Shader instruction (0x{:016x})",
-                                         nv_address, instr.value)));
-        return pc + 1;
-    }
-
-    bb.push_back(Comment(
-        fmt::format("{:05x} {} (0x{:016x})", nv_address, opcode->get().GetName(), instr.value)));
-
-    using Tegra::Shader::Pred;
-    UNIMPLEMENTED_IF_MSG(instr.pred.full_pred == Pred::NeverExecute,
-                         "NeverExecute predicate not implemented");
-
-    static const std::map<OpCode::Type, u32 (ShaderIR::*)(NodeBlock&, u32)> decoders = {
-        {OpCode::Type::Arithmetic, &ShaderIR::DecodeArithmetic},
-        {OpCode::Type::ArithmeticImmediate, &ShaderIR::DecodeArithmeticImmediate},
-        {OpCode::Type::Bfe, &ShaderIR::DecodeBfe},
-        {OpCode::Type::Bfi, &ShaderIR::DecodeBfi},
-        {OpCode::Type::Shift, &ShaderIR::DecodeShift},
-        {OpCode::Type::ArithmeticInteger, &ShaderIR::DecodeArithmeticInteger},
-        {OpCode::Type::ArithmeticIntegerImmediate, &ShaderIR::DecodeArithmeticIntegerImmediate},
-        {OpCode::Type::ArithmeticHalf, &ShaderIR::DecodeArithmeticHalf},
-        {OpCode::Type::ArithmeticHalfImmediate, &ShaderIR::DecodeArithmeticHalfImmediate},
-        {OpCode::Type::Ffma, &ShaderIR::DecodeFfma},
-        {OpCode::Type::Hfma2, &ShaderIR::DecodeHfma2},
-        {OpCode::Type::Conversion, &ShaderIR::DecodeConversion},
-        {OpCode::Type::Warp, &ShaderIR::DecodeWarp},
-        {OpCode::Type::Memory, &ShaderIR::DecodeMemory},
-        {OpCode::Type::Texture, &ShaderIR::DecodeTexture},
-        {OpCode::Type::Image, &ShaderIR::DecodeImage},
-        {OpCode::Type::FloatSetPredicate, &ShaderIR::DecodeFloatSetPredicate},
-        {OpCode::Type::IntegerSetPredicate, &ShaderIR::DecodeIntegerSetPredicate},
-        {OpCode::Type::HalfSetPredicate, &ShaderIR::DecodeHalfSetPredicate},
-        {OpCode::Type::PredicateSetRegister, &ShaderIR::DecodePredicateSetRegister},
-        {OpCode::Type::PredicateSetPredicate, &ShaderIR::DecodePredicateSetPredicate},
-        {OpCode::Type::RegisterSetPredicate, &ShaderIR::DecodeRegisterSetPredicate},
-        {OpCode::Type::FloatSet, &ShaderIR::DecodeFloatSet},
-        {OpCode::Type::IntegerSet, &ShaderIR::DecodeIntegerSet},
-        {OpCode::Type::HalfSet, &ShaderIR::DecodeHalfSet},
-        {OpCode::Type::Video, &ShaderIR::DecodeVideo},
-        {OpCode::Type::Xmad, &ShaderIR::DecodeXmad},
-    };
-
-    std::vector<Node> tmp_block;
-    if (const auto decoder = decoders.find(opcode->get().GetType()); decoder != decoders.end()) {
-        pc = (this->*decoder->second)(tmp_block, pc);
-    } else {
-        pc = DecodeOther(tmp_block, pc);
-    }
-
-    // Some instructions (like SSY) don't have a predicate field, they are always unconditionally
-    // executed.
-    const bool can_be_predicated = OpCode::IsPredicatedInstruction(opcode->get().GetId());
-    const auto pred_index = static_cast<u32>(instr.pred.pred_index);
-
-    if (can_be_predicated && pred_index != static_cast<u32>(Pred::UnusedIndex)) {
-        const Node conditional =
-            Conditional(GetPredicate(pred_index, instr.negate_pred != 0), std::move(tmp_block));
-        global_code.push_back(conditional);
-        bb.push_back(conditional);
-    } else {
-        for (auto& node : tmp_block) {
-            global_code.push_back(node);
-            bb.push_back(node);
-        }
-    }
-
-    return pc + 1;
-}
-
-void ShaderIR::PostDecode() {
-    // Deduce texture handler size if needed
-    auto gpu_driver = registry.AccessGuestDriverProfile();
-    DeduceTextureHandlerSize(gpu_driver, used_samplers);
-    // Deduce Indexed Samplers
-    if (!uses_indexed_samplers) {
-        return;
-    }
-    for (auto& sampler : used_samplers) {
-        if (!sampler.is_indexed) {
-            continue;
-        }
-        if (const auto size = TryDeduceSamplerSize(sampler, gpu_driver, used_samplers)) {
-            sampler.size = *size;
-        } else {
-            LOG_CRITICAL(HW_GPU, "Failed to deduce size of indexed sampler");
-            sampler.size = 1;
-        }
-    }
-}
-
-} // namespace VideoCommon::Shader