diff options
| -rw-r--r-- | src/video_core/renderer_opengl/gl_shader_decompiler.cpp | 376 |
1 files changed, 195 insertions, 181 deletions
diff --git a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp index 4bff54a59..4c380677d 100644 --- a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp +++ b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp @@ -57,15 +57,14 @@ public: shader_source += text; } - void AddLine(std::string_view text) { - AddExpression(text); - AddNewLine(); - } - - void AddLine(char character) { - DEBUG_ASSERT(scope >= 0); - AppendIndentation(); - shader_source += character; + // Forwards all arguments directly to libfmt. + // Note that all formatting requirements for fmt must be + // obeyed when using this function. (e.g. {{ must be used + // printing the character '{' is desirable. Ditto for }} and '}', + // etc). + template <typename... Args> + void AddLine(std::string_view text, Args&&... args) { + AddExpression(fmt::format(text, std::forward<Args>(args)...)); AddNewLine(); } @@ -75,9 +74,7 @@ public: } std::string GenerateTemporary() { - std::string temporary = "tmp"; - temporary += std::to_string(temporary_index++); - return temporary; + return fmt::format("tmp{}", temporary_index++); } std::string GetResult() { @@ -167,41 +164,41 @@ public: DeclareSamplers(); DeclarePhysicalAttributeReader(); - code.AddLine("void execute_" + suffix + "() {"); + code.AddLine("void execute_{}() {{", suffix); ++code.scope; // VM's program counter const auto first_address = ir.GetBasicBlocks().begin()->first; - code.AddLine("uint jmp_to = " + std::to_string(first_address) + "u;"); + code.AddLine("uint jmp_to = {}u;", first_address); // TODO(Subv): Figure out the actual depth of the flow stack, for now it seems // unlikely that shaders will use 20 nested SSYs and PBKs. constexpr u32 FLOW_STACK_SIZE = 20; - code.AddLine(fmt::format("uint flow_stack[{}];", FLOW_STACK_SIZE)); + code.AddLine("uint flow_stack[{}];", FLOW_STACK_SIZE); code.AddLine("uint flow_stack_top = 0u;"); - code.AddLine("while (true) {"); + code.AddLine("while (true) {{"); ++code.scope; - code.AddLine("switch (jmp_to) {"); + code.AddLine("switch (jmp_to) {{"); for (const auto& pair : ir.GetBasicBlocks()) { const auto [address, bb] = pair; - code.AddLine(fmt::format("case 0x{:x}u: {{", address)); + code.AddLine("case 0x{:x}u: {{", address); ++code.scope; VisitBlock(bb); --code.scope; - code.AddLine('}'); + code.AddLine("}}"); } code.AddLine("default: return;"); - code.AddLine('}'); + code.AddLine("}}"); for (std::size_t i = 0; i < 2; ++i) { --code.scope; - code.AddLine('}'); + code.AddLine("}}"); } } @@ -241,12 +238,13 @@ private: } void DeclareGeometry() { - if (stage != ShaderStage::Geometry) + if (stage != ShaderStage::Geometry) { return; + } const auto topology = GetTopologyName(header.common3.output_topology); - const auto max_vertices = std::to_string(header.common4.max_output_vertices); - code.AddLine("layout (" + topology + ", max_vertices = " + max_vertices + ") out;"); + const auto max_vertices = header.common4.max_output_vertices.Value(); + code.AddLine("layout ({}, max_vertices = {}) out;", topology, max_vertices); code.AddNewLine(); DeclareVertexRedeclarations(); @@ -255,7 +253,7 @@ private: void DeclareVertexRedeclarations() { bool clip_distances_declared = false; - code.AddLine("out gl_PerVertex {"); + code.AddLine("out gl_PerVertex {{"); ++code.scope; code.AddLine("vec4 gl_Position;"); @@ -271,40 +269,42 @@ private: } --code.scope; - code.AddLine("};"); + code.AddLine("}};"); code.AddNewLine(); } void DeclareRegisters() { const auto& registers = ir.GetRegisters(); for (const u32 gpr : registers) { - code.AddLine("float " + GetRegister(gpr) + " = 0;"); + code.AddLine("float {} = 0;", GetRegister(gpr)); } - if (!registers.empty()) + if (!registers.empty()) { code.AddNewLine(); + } } void DeclarePredicates() { const auto& predicates = ir.GetPredicates(); for (const auto pred : predicates) { - code.AddLine("bool " + GetPredicate(pred) + " = false;"); + code.AddLine("bool {} = false;", GetPredicate(pred)); } - if (!predicates.empty()) + if (!predicates.empty()) { code.AddNewLine(); + } } void DeclareLocalMemory() { if (const u64 local_memory_size = header.GetLocalMemorySize(); local_memory_size > 0) { const auto element_count = Common::AlignUp(local_memory_size, 4) / 4; - code.AddLine("float " + GetLocalMemory() + '[' + std::to_string(element_count) + "];"); + code.AddLine("float {}[{}];", GetLocalMemory(), element_count); code.AddNewLine(); } } void DeclareInternalFlags() { for (u32 flag = 0; flag < static_cast<u32>(InternalFlag::Amount); flag++) { - const InternalFlag flag_code = static_cast<InternalFlag>(flag); - code.AddLine("bool " + GetInternalFlag(flag_code) + " = false;"); + const auto flag_code = static_cast<InternalFlag>(flag); + code.AddLine("bool {} = false;", GetInternalFlag(flag_code)); } code.AddNewLine(); } @@ -343,8 +343,9 @@ private: DeclareInputAttribute(index, false); } } - if (!attributes.empty()) + if (!attributes.empty()) { code.AddNewLine(); + } } void DeclareInputAttribute(Attribute::Index index, bool skip_unused) { @@ -370,8 +371,7 @@ private: location += GENERIC_VARYING_START_LOCATION; } - code.AddLine("layout (location = " + std::to_string(location) + ") " + suffix + "in vec4 " + - name + ';'); + code.AddLine("layout (location = {}) {} in vec4 {};", name, location, suffix, name); } void DeclareOutputAttributes() { @@ -389,23 +389,23 @@ private: DeclareOutputAttribute(index); } } - if (!attributes.empty()) + if (!attributes.empty()) { code.AddNewLine(); + } } void DeclareOutputAttribute(Attribute::Index index) { const u32 location{GetGenericAttributeIndex(index) + GENERIC_VARYING_START_LOCATION}; - code.AddLine("layout (location = " + std::to_string(location) + ") out vec4 " + - GetOutputAttribute(index) + ';'); + code.AddLine("layout (location = {}) out vec4 {};", location, GetOutputAttribute(index)); } void DeclareConstantBuffers() { for (const auto& entry : ir.GetConstantBuffers()) { const auto [index, size] = entry; - code.AddLine("layout (std140, binding = CBUF_BINDING_" + std::to_string(index) + - ") uniform " + GetConstBufferBlock(index) + " {"); - code.AddLine(" vec4 " + GetConstBuffer(index) + "[MAX_CONSTBUFFER_ELEMENTS];"); - code.AddLine("};"); + code.AddLine("layout (std140, binding = CBUF_BINDING_{}) uniform {} {{", index, + GetConstBufferBlock(index)); + code.AddLine(" vec4 {}[MAX_CONSTBUFFER_ELEMENTS];", GetConstBuffer(index)); + code.AddLine("}};"); code.AddNewLine(); } } @@ -417,17 +417,16 @@ private: // Since we don't know how the shader will use the shader, hint the driver to disable as // much optimizations as possible std::string qualifier = "coherent volatile"; - if (usage.is_read && !usage.is_written) + if (usage.is_read && !usage.is_written) { qualifier += " readonly"; - else if (usage.is_written && !usage.is_read) + } else if (usage.is_written && !usage.is_read) { qualifier += " writeonly"; + } - const std::string binding = - fmt::format("GMEM_BINDING_{}_{}", base.cbuf_index, base.cbuf_offset); - code.AddLine("layout (std430, binding = " + binding + ") " + qualifier + " buffer " + - GetGlobalMemoryBlock(base) + " {"); - code.AddLine(" float " + GetGlobalMemory(base) + "[];"); - code.AddLine("};"); + code.AddLine("layout (std430, binding = GMEM_BINDING_{}_{}) {} buffer {} {{", + base.cbuf_index, base.cbuf_offset, qualifier, GetGlobalMemoryBlock(base)); + code.AddLine(" float {}[];", GetGlobalMemory(base)); + code.AddLine("}};"); code.AddNewLine(); } } @@ -435,7 +434,7 @@ private: void DeclareSamplers() { const auto& samplers = ir.GetSamplers(); for (const auto& sampler : samplers) { - std::string sampler_type = [&]() { + std::string sampler_type = [&sampler] { switch (sampler.GetType()) { case Tegra::Shader::TextureType::Texture1D: return "sampler1D"; @@ -450,25 +449,28 @@ private: return "sampler2D"; } }(); - if (sampler.IsArray()) + if (sampler.IsArray()) { sampler_type += "Array"; - if (sampler.IsShadow()) + } + if (sampler.IsShadow()) { sampler_type += "Shadow"; + } - code.AddLine("layout (binding = SAMPLER_BINDING_" + std::to_string(sampler.GetIndex()) + - ") uniform " + sampler_type + ' ' + GetSampler(sampler) + ';'); + code.AddLine("layout (binding = SAMPLER_BINDING_{}) uniform {} {};", sampler.GetIndex(), + sampler_type, GetSampler(sampler)); } - if (!samplers.empty()) + if (!samplers.empty()) { code.AddNewLine(); + } } void DeclarePhysicalAttributeReader() { if (!ir.HasPhysicalAttributes()) { return; } - code.AddLine("float readPhysicalAttribute(uint physical_address) {"); + code.AddLine("float readPhysicalAttribute(uint physical_address) {{"); ++code.scope; - code.AddLine("switch (physical_address) {"); + code.AddLine("switch (physical_address) {{"); // Just declare generic attributes for now. const auto num_attributes{static_cast<u32>(GetNumPhysicalInputAttributes())}; @@ -483,15 +485,15 @@ private: const bool declared{stage != ShaderStage::Fragment || header.ps.GetAttributeUse(index) != AttributeUse::Unused}; const std::string value{declared ? ReadAttribute(attribute, element) : "0"}; - code.AddLine(fmt::format("case 0x{:x}: return {};", address, value)); + code.AddLine("case 0x{:x}: return {};", address, value); } } code.AddLine("default: return 0;"); - code.AddLine('}'); + code.AddLine("}}"); --code.scope; - code.AddLine('}'); + code.AddLine("}}"); code.AddNewLine(); } @@ -516,23 +518,26 @@ private: return {}; } return (this->*decompiler)(*operation); + } - } else if (const auto gpr = std::get_if<GprNode>(node)) { + if (const auto gpr = std::get_if<GprNode>(node)) { const u32 index = gpr->GetIndex(); if (index == Register::ZeroIndex) { return "0"; } return GetRegister(index); + } - } else if (const auto immediate = std::get_if<ImmediateNode>(node)) { + if (const auto immediate = std::get_if<ImmediateNode>(node)) { const u32 value = immediate->GetValue(); if (value < 10) { // For eyecandy avoid using hex numbers on single digits return fmt::format("utof({}u)", immediate->GetValue()); } return fmt::format("utof(0x{:x}u)", immediate->GetValue()); + } - } else if (const auto predicate = std::get_if<PredicateNode>(node)) { + if (const auto predicate = std::get_if<PredicateNode>(node)) { const auto value = [&]() -> std::string { switch (const auto index = predicate->GetIndex(); index) { case Tegra::Shader::Pred::UnusedIndex: @@ -544,19 +549,22 @@ private: } }(); if (predicate->IsNegated()) { - return "!(" + value + ')'; + return fmt::format("!({})", value); } return value; + } - } else if (const auto abuf = std::get_if<AbufNode>(node)) { + if (const auto abuf = std::get_if<AbufNode>(node)) { UNIMPLEMENTED_IF_MSG(abuf->IsPhysicalBuffer() && stage == ShaderStage::Geometry, "Physical attributes in geometry shaders are not implemented"); if (abuf->IsPhysicalBuffer()) { - return "readPhysicalAttribute(ftou(" + Visit(abuf->GetPhysicalAddress()) + "))"; + return fmt::format("readPhysicalAttribute(ftou({}))", + Visit(abuf->GetPhysicalAddress())); } return ReadAttribute(abuf->GetIndex(), abuf->GetElement(), abuf->GetBuffer()); + } - } else if (const auto cbuf = std::get_if<CbufNode>(node)) { + if (const auto cbuf = std::get_if<CbufNode>(node)) { const Node offset = cbuf->GetOffset(); if (const auto immediate = std::get_if<ImmediateNode>(offset)) { // Direct access @@ -564,57 +572,63 @@ private: ASSERT_MSG(offset_imm % 4 == 0, "Unaligned cbuf direct access"); return fmt::format("{}[{}][{}]", GetConstBuffer(cbuf->GetIndex()), offset_imm / (4 * 4), (offset_imm / 4) % 4); + } - } else if (std::holds_alternative<OperationNode>(*offset)) { + if (std::holds_alternative<OperationNode>(*offset)) { // Indirect access const std::string final_offset = code.GenerateTemporary(); - code.AddLine("uint " + final_offset + " = (ftou(" + Visit(offset) + ") / 4);"); + code.AddLine("uint {} = (ftou({}) / 4);", final_offset, Visit(offset)); return fmt::format("{}[{} / 4][{} % 4]", GetConstBuffer(cbuf->GetIndex()), final_offset, final_offset); - - } else { - UNREACHABLE_MSG("Unmanaged offset node type"); } - } else if (const auto gmem = std::get_if<GmemNode>(node)) { + UNREACHABLE_MSG("Unmanaged offset node type"); + } + + if (const auto gmem = std::get_if<GmemNode>(node)) { const std::string real = Visit(gmem->GetRealAddress()); const std::string base = Visit(gmem->GetBaseAddress()); - const std::string final_offset = "(ftou(" + real + ") - ftou(" + base + ")) / 4"; + const std::string final_offset = fmt::format("(ftou({}) - ftou({})) / 4", real, base); return fmt::format("{}[{}]", GetGlobalMemory(gmem->GetDescriptor()), final_offset); + } - } else if (const auto lmem = std::get_if<LmemNode>(node)) { + if (const auto lmem = std::get_if<LmemNode>(node)) { return fmt::format("{}[ftou({}) / 4]", GetLocalMemory(), Visit(lmem->GetAddress())); + } - } else if (const auto internal_flag = std::get_if<InternalFlagNode>(node)) { + if (const auto internal_flag = std::get_if<InternalFlagNode>(node)) { return GetInternalFlag(internal_flag->GetFlag()); + } - } else if (const auto conditional = std::get_if<ConditionalNode>(node)) { + if (const auto conditional = std::get_if<ConditionalNode>(node)) { // It's invalid to call conditional on nested nodes, use an operation instead - code.AddLine("if (" + Visit(conditional->GetCondition()) + ") {"); + code.AddLine("if ({}) {{", Visit(conditional->GetCondition())); ++code.scope; VisitBlock(conditional->GetCode()); --code.scope; - code.AddLine('}'); + code.AddLine("}}"); return {}; + } - } else if (const auto comment = std::get_if<CommentNode>(node)) { + if (const auto comment = std::get_if<CommentNode>(node)) { return "// " + comment->GetText(); } + UNREACHABLE(); return {}; } std::string ReadAttribute(Attribute::Index attribute, u32 element, Node buffer = {}) { - const auto GeometryPass = [&](std::string name) { + const auto GeometryPass = [&](std::string_view name) { if (stage == ShaderStage::Geometry && buffer) { // TODO(Rodrigo): Guard geometry inputs against out of bound reads. Some games // set an 0x80000000 index for those and the shader fails to build. Find out why // this happens and what's its intent. - return "gs_" + std::move(name) + "[ftou(" + Visit(buffer) + ") % MAX_VERTEX_INPUT]"; + return fmt::format("gs_{}[ftou({}) % MAX_VERTEX_INPUT]", name, Visit(buffer)); } - return name; + return std::string(name); }; switch (attribute) { @@ -677,7 +691,7 @@ private: const std::string precise = stage != ShaderStage::Fragment ? "precise " : ""; const std::string temporary = code.GenerateTemporary(); - code.AddLine(precise + "float " + temporary + " = " + value + ';'); + code.AddLine("{}float {} = {};", precise, temporary, value); return temporary; } @@ -691,7 +705,7 @@ private: } const std::string temporary = code.GenerateTemporary(); - code.AddLine("float " + temporary + " = " + Visit(operand) + ';'); + code.AddLine("float {} = {};", temporary, Visit(operand)); return temporary; } @@ -706,31 +720,32 @@ private: case Type::Float: return value; case Type::Int: - return "ftoi(" + value + ')'; + return fmt::format("ftoi({})", value); case Type::Uint: - return "ftou(" + value + ')'; + return fmt::format("ftou({})", value); case Type::HalfFloat: - return "toHalf2(" + value + ')'; + return fmt::format("toHalf2({})", value); } UNREACHABLE(); return value; } - std::string BitwiseCastResult(std::string value, Type type, bool needs_parenthesis = false) { + std::string BitwiseCastResult(const std::string& value, Type type, + bool needs_parenthesis = false) { switch (type) { case Type::Bool: case Type::Bool2: case Type::Float: if (needs_parenthesis) { - return '(' + value + ')'; + return fmt::format("({})", value); } return value; case Type::Int: - return "itof(" + value + ')'; + return fmt::format("itof({})", value); case Type::Uint: - return "utof(" + value + ')'; + return fmt::format("utof({})", value); case Type::HalfFloat: - return "fromHalf2(" + value + ')'; + return fmt::format("fromHalf2({})", value); } UNREACHABLE(); return value; @@ -738,27 +753,27 @@ private: std::string GenerateUnary(Operation operation, const std::string& func, Type result_type, Type type_a, bool needs_parenthesis = true) { - return ApplyPrecise(operation, - BitwiseCastResult(func + '(' + VisitOperand(operation, 0, type_a) + ')', - result_type, needs_parenthesis)); + const std::string op_str = fmt::format("{}({})", func, VisitOperand(operation, 0, type_a)); + + return ApplyPrecise(operation, BitwiseCastResult(op_str, result_type, needs_parenthesis)); } std::string GenerateBinaryInfix(Operation operation, const std::string& func, Type result_type, Type type_a, Type type_b) { const std::string op_a = VisitOperand(operation, 0, type_a); const std::string op_b = VisitOperand(operation, 1, type_b); + const std::string op_str = fmt::format("({} {} {})", op_a, func, op_b); - return ApplyPrecise( - operation, BitwiseCastResult('(' + op_a + ' ' + func + ' ' + op_b + ')', result_type)); + return ApplyPrecise(operation, BitwiseCastResult(op_str, result_type)); } std::string GenerateBinaryCall(Operation operation, const std::string& func, Type result_type, Type type_a, Type type_b) { const std::string op_a = VisitOperand(operation, 0, type_a); const std::string op_b = VisitOperand(operation, 1, type_b); + const std::string op_str = fmt::format("{}({}, {})", func, op_a, op_b); - return ApplyPrecise(operation, - BitwiseCastResult(func + '(' + op_a + ", " + op_b + ')', result_type)); + return ApplyPrecise(operation, BitwiseCastResult(op_str, result_type)); } std::string GenerateTernary(Operation operation, const std::string& func, Type result_type, @@ -766,10 +781,9 @@ private: const std::string op_a = VisitOperand(operation, 0, type_a); const std::string op_b = VisitOperand(operation, 1, type_b); const std::string op_c = VisitOperand(operation, 2, type_c); + const std::string op_str = fmt::format("{}({}, {}, {})", func, op_a, op_b, op_c); - return ApplyPrecise( - operation, - BitwiseCastResult(func + '(' + op_a + ", " + op_b + ", " + op_c + ')', result_type)); + return ApplyPrecise(operation, BitwiseCastResult(op_str, result_type)); } std::string GenerateQuaternary(Operation operation, const std::string& func, Type result_type, @@ -778,10 +792,9 @@ private: const std::string op_b = VisitOperand(operation, 1, type_b); const std::string op_c = VisitOperand(operation, 2, type_c); const std::string op_d = VisitOperand(operation, 3, type_d); + const std::string op_str = fmt::format("{}({}, {}, {}, {})", func, op_a, op_b, op_c, op_d); - return ApplyPrecise(operation, BitwiseCastResult(func + '(' + op_a + ", " + op_b + ", " + - op_c + ", " + op_d + ')', - result_type)); + return ApplyPrecise(operation, BitwiseCastResult(op_str, result_type)); } std::string GenerateTexture(Operation operation, const std::string& function_suffix, @@ -844,7 +857,7 @@ private: // required to be constant) expr += std::to_string(static_cast<s32>(immediate->GetValue())); } else { - expr += "ftoi(" + Visit(operand) + ')'; + expr += fmt::format("ftoi({})", Visit(operand)); } break; case Type::Float: @@ -877,7 +890,7 @@ private: expr += std::to_string(static_cast<s32>(immediate->GetValue())); } else if (device.HasVariableAoffi()) { // Avoid using variable AOFFI on unsupported devices. - expr += "ftoi(" + Visit(operand) + ')'; + expr += fmt::format("ftoi({})", Visit(operand)); } else { // Insert 0 on devices not supporting variable AOFFI. expr += '0'; @@ -902,7 +915,6 @@ private: return {}; } target = GetRegister(gpr->GetIndex()); - } else if (const auto abuf = std::get_if<AbufNode>(dest)) { UNIMPLEMENTED_IF(abuf->IsPhysicalBuffer()); @@ -913,9 +925,9 @@ private: case Attribute::Index::PointSize: return "gl_PointSize"; case Attribute::Index::ClipDistances0123: - return "gl_ClipDistance[" + std::to_string(abuf->GetElement()) + ']'; + return fmt::format("gl_ClipDistance[{}]", abuf->GetElement()); case Attribute::Index::ClipDistances4567: - return "gl_ClipDistance[" + std::to_string(abuf->GetElement() + 4) + ']'; + return fmt::format("gl_ClipDistance[{}]", abuf->GetElement() + 4); default: if (IsGenericAttribute(attribute)) { return GetOutputAttribute(attribute) + GetSwizzle(abuf->GetElement()); @@ -925,21 +937,18 @@ private: return "0"; } }(); - } else if (const auto lmem = std::get_if<LmemNode>(dest)) { - target = GetLocalMemory() + "[ftou(" + Visit(lmem->GetAddress()) + ") / 4]"; - + target = fmt::format("{}[ftou({}) / 4]", GetLocalMemory(), Visit(lmem->GetAddress())); } else if (const auto gmem = std::get_if<GmemNode>(dest)) { const std::string real = Visit(gmem->GetRealAddress()); const std::string base = Visit(gmem->GetBaseAddress()); - const std::string final_offset = "(ftou(" + real + ") - ftou(" + base + ")) / 4"; + const std::string final_offset = fmt::format("(ftou({}) - ftou({})) / 4", real, base); target = fmt::format("{}[{}]", GetGlobalMemory(gmem->GetDescriptor()), final_offset); - } else { UNREACHABLE_MSG("Assign called without a proper target"); } - code.AddLine(target + " = " + Visit(src) + ';'); + code.AddLine("{} = {};", target, Visit(src)); return {}; } @@ -992,8 +1001,9 @@ private: const std::string condition = Visit(operation[0]); const std::string true_case = Visit(operation[1]); const std::string false_case = Visit(operation[2]); - return ApplyPrecise(operation, - '(' + condition + " ? " + true_case + " : " + false_case + ')'); + const std::string op_str = fmt::format("({} ? {} : {})", condition, true_case, false_case); + + return ApplyPrecise(operation, op_str); } std::string FCos(Operation operation) { @@ -1057,9 +1067,9 @@ private: std::string ILogicalShiftRight(Operation operation) { const std::string op_a = VisitOperand(operation, 0, Type::Uint); const std::string op_b = VisitOperand(operation, 1, Type::Uint); + const std::string op_str = fmt::format("int({} >> {})", op_a, op_b); - return ApplyPrecise(operation, - BitwiseCastResult("int(" + op_a + " >> " + op_b + ')', Type::Int)); + return ApplyPrecise(operation, BitwiseCastResult(op_str, Type::Int)); } std::string IArithmeticShiftRight(Operation operation) { @@ -1115,11 +1125,12 @@ private: } std::string HNegate(Operation operation) { - const auto GetNegate = [&](std::size_t index) -> std::string { + const auto GetNegate = [&](std::size_t index) { return VisitOperand(operation, index, Type::Bool) + " ? -1 : 1"; }; - const std::string value = '(' + VisitOperand(operation, 0, Type::HalfFloat) + " * vec2(" + - GetNegate(1) + ", " + GetNegate(2) + "))"; + const std::string value = + fmt::format("({} * vec2({}, {}))", VisitOperand(operation, 0, Type::HalfFloat), + GetNegate(1), GetNegate(2)); return BitwiseCastResult(value, Type::HalfFloat); } @@ -1127,7 +1138,8 @@ private: const std::string value = VisitOperand(operation, 0, Type::HalfFloat); const std::string min = VisitOperand(operation, 1, Type::Float); const std::string max = VisitOperand(operation, 2, Type::Float); - const std::string clamped = "clamp(" + value + ", vec2(" + min + "), vec2(" + max + "))"; + const std::string clamped = fmt::format("clamp({}, vec2({}), vec2({}))", value, min, max); + return ApplyPrecise(operation, BitwiseCastResult(clamped, Type::HalfFloat)); } @@ -1138,34 +1150,35 @@ private: case Tegra::Shader::HalfType::H0_H1: return operand; case Tegra::Shader::HalfType::F32: - return "vec2(fromHalf2(" + operand + "))"; + return fmt::format("vec2(fromHalf2({}))", operand); case Tegra::Shader::HalfType::H0_H0: - return "vec2(" + operand + "[0])"; + return fmt::format("vec2({}[0])", operand); case Tegra::Shader::HalfType::H1_H1: - return "vec2(" + operand + "[1])"; + return fmt::format("vec2({}[1])", operand); } UNREACHABLE(); return "0"; }(); - return "fromHalf2(" + value + ')'; + return fmt::format("fromHalf2({})", value); } std::string HMergeF32(Operation operation) { - return "float(toHalf2(" + Visit(operation[0]) + ")[0])"; + return fmt::format("float(toHalf2({})[0])", Visit(operation[0])); } std::string HMergeH0(Operation operation) { - return "fromHalf2(vec2(toHalf2(" + Visit(operation[1]) + ")[0], toHalf2(" + - Visit(operation[0]) + ")[1]))"; + return fmt::format("fromHalf2(vec2(toHalf2({})[0], toHalf2({})[1]))", Visit(operation[1]), + Visit(operation[0])); } std::string HMergeH1(Operation operation) { - return "fromHalf2(vec2(toHalf2(" + Visit(operation[0]) + ")[0], toHalf2(" + - Visit(operation[1]) + ")[1]))"; + return fmt::format("fromHalf2(vec2(toHalf2({})[0], toHalf2({})[1]))", Visit(operation[0]), + Visit(operation[1])); } std::string HPack2(Operation operation) { - return "utof(packHalf2x16(vec2(" + Visit(operation[0]) + ", " + Visit(operation[1]) + ")))"; + return fmt::format("utof(packHalf2x16(vec2({}, {})))", Visit(operation[0]), + Visit(operation[1])); } template <Type type> @@ -1223,7 +1236,7 @@ private: target = GetInternalFlag(flag->GetFlag()); } - code.AddLine(target + " = " + Visit(src) + ';'); + code.AddLine("{} = {};", target, Visit(src)); return {}; } @@ -1245,7 +1258,7 @@ private: std::string LogicalPick2(Operation operation) { const std::string pair = VisitOperand(operation, 0, Type::Bool2); - return pair + '[' + VisitOperand(operation, 1, Type::Uint) + ']'; + return fmt::format("{}[{}]", pair, VisitOperand(operation, 1, Type::Uint)); } std::string LogicalAll2(Operation operation) { @@ -1257,15 +1270,15 @@ private: } template <bool with_nan> - std::string GenerateHalfComparison(Operation operation, std::string compare_op) { - std::string comparison{GenerateBinaryCall(operation, compare_op, Type::Bool2, - Type::HalfFloat, Type::HalfFloat)}; + std::string GenerateHalfComparison(Operation operation, const std::string& compare_op) { + const std::string comparison{GenerateBinaryCall(operation, compare_op, Type::Bool2, + Type::HalfFloat, Type::HalfFloat)}; if constexpr (!with_nan) { return comparison; } - return "halfFloatNanComparison(" + comparison + ", " + - VisitOperand(operation, 0, Type::HalfFloat) + ", " + - VisitOperand(operation, 1, Type::HalfFloat) + ')'; + return fmt::format("halfFloatNanComparison({}, {}, {})", comparison, + VisitOperand(operation, 0, Type::HalfFloat), + VisitOperand(operation, 1, Type::HalfFloat)); } template <bool with_nan> @@ -1342,12 +1355,12 @@ private: switch (meta->element) { case 0: case 1: - return "itof(int(textureSize(" + sampler + ", " + lod + ')' + - GetSwizzle(meta->element) + "))"; + return fmt::format("itof(int(textureSize({}, {}){}))", sampler, lod, + GetSwizzle(meta->element)); case 2: return "0"; case 3: - return "itof(textureQueryLevels(" + sampler + "))"; + return fmt::format("itof(textureQueryLevels({}))", sampler); } UNREACHABLE(); return "0"; @@ -1358,8 +1371,9 @@ private: ASSERT(meta); if (meta->element < 2) { - return "itof(int((" + GenerateTexture(operation, "QueryLod", {}) + " * vec2(256))" + - GetSwizzle(meta->element) + "))"; + return fmt::format("itof(int(({} * vec2(256)){}))", + GenerateTexture(operation, "QueryLod", {}), + GetSwizzle(meta->element)); } return "0"; } @@ -1398,7 +1412,7 @@ private: const auto target = std::get_if<ImmediateNode>(operation[0]); UNIMPLEMENTED_IF(!target); - code.AddLine(fmt::format("jmp_to = 0x{:x}u;", target->GetValue())); + code.AddLine("jmp_to = 0x{:x}u;", target->GetValue()); code.AddLine("break;"); return {}; } @@ -1407,7 +1421,7 @@ private: const auto target = std::get_if<ImmediateNode>(operation[0]); UNIMPLEMENTED_IF(!target); - code.AddLine(fmt::format("flow_stack[flow_stack_top++] = 0x{:x}u;", target->GetValue())); + code.AddLine("flow_stack[flow_stack_top++] = 0x{:x}u;", target->GetValue()); return {}; } @@ -1433,7 +1447,7 @@ private: UNIMPLEMENTED_IF_MSG(header.ps.omap.sample_mask != 0, "Sample mask write is unimplemented"); - code.AddLine("if (alpha_test[0] != 0) {"); + code.AddLine("if (alpha_test[0] != 0) {{"); ++code.scope; // We start on the register containing the alpha value in the first RT. u32 current_reg = 3; @@ -1444,13 +1458,12 @@ private: header.ps.IsColorComponentOutputEnabled(render_target, 1) || header.ps.IsColorComponentOutputEnabled(render_target, 2) || header.ps.IsColorComponentOutputEnabled(render_target, 3)) { - code.AddLine( - fmt::format("if (!AlphaFunc({})) discard;", SafeGetRegister(current_reg))); + code.AddLine("if (!AlphaFunc({})) discard;", SafeGetRegister(current_reg)); current_reg += 4; } } --code.scope; - code.AddLine('}'); + code.AddLine("}}"); // Write the color outputs using the data in the shader registers, disabled // rendertargets/components are skipped in the register assignment. @@ -1459,8 +1472,8 @@ private: // TODO(Subv): Figure out how dual-source blending is configured in the Switch. for (u32 component = 0; component < 4; ++component) { if (header.ps.IsColorComponentOutputEnabled(render_target, component)) { - code.AddLine(fmt::format("FragColor{}[{}] = {};", render_target, component, - SafeGetRegister(current_reg))); + code.AddLine("FragColor{}[{}] = {};", render_target, component, + SafeGetRegister(current_reg)); ++current_reg; } } @@ -1469,7 +1482,7 @@ private: if (header.ps.omap.depth) { // The depth output is always 2 registers after the last color output, and current_reg // already contains one past the last color register. - code.AddLine("gl_FragDepth = " + SafeGetRegister(current_reg + 1) + ';'); + code.AddLine("gl_FragDepth = {};", SafeGetRegister(current_reg + 1)); } code.AddLine("return;"); @@ -1479,11 +1492,11 @@ private: std::string Discard(Operation operation) { // Enclose "discard" in a conditional, so that GLSL compilation does not complain // about unexecuted instructions that may follow this. - code.AddLine("if (true) {"); + code.AddLine("if (true) {{"); ++code.scope; code.AddLine("discard;"); --code.scope; - code.AddLine("}"); + code.AddLine("}}"); return {}; } @@ -1697,7 +1710,7 @@ private: const auto index = static_cast<u32>(flag); ASSERT(index < static_cast<u32>(InternalFlag::Amount)); - return std::string(InternalFlagNames[index]) + '_' + suffix; + return fmt::format("{}_{}", InternalFlagNames[index], suffix); } std::string GetSampler(const Sampler& sampler) const { @@ -1705,7 +1718,7 @@ private: } std::string GetDeclarationWithSuffix(u32 index, const std::string& name) const { - return name + '_' + std::to_string(index) + '_' + suffix; + return fmt::format("{}_{}_{}", name, index, suffix); } u32 GetNumPhysicalInputAttributes() const { @@ -1733,24 +1746,25 @@ private: } // Anonymous namespace std::string GetCommonDeclarations() { - const auto cbuf = std::to_string(MAX_CONSTBUFFER_ELEMENTS); - return "#define MAX_CONSTBUFFER_ELEMENTS " + cbuf + "\n" + - "#define ftoi floatBitsToInt\n" - "#define ftou floatBitsToUint\n" - "#define itof intBitsToFloat\n" - "#define utof uintBitsToFloat\n\n" - "float fromHalf2(vec2 pair) {\n" - " return utof(packHalf2x16(pair));\n" - "}\n\n" - "vec2 toHalf2(float value) {\n" - " return unpackHalf2x16(ftou(value));\n" - "}\n\n" - "bvec2 halfFloatNanComparison(bvec2 comparison, vec2 pair1, vec2 pair2) {\n" - " bvec2 is_nan1 = isnan(pair1);\n" - " bvec2 is_nan2 = isnan(pair2);\n" - " return bvec2(comparison.x || is_nan1.x || is_nan2.x, comparison.y || is_nan1.y || " - "is_nan2.y);\n" - "}\n"; + return fmt::format( + "#define MAX_CONSTBUFFER_ELEMENTS {}\n" + "#define ftoi floatBitsToInt\n" + "#define ftou floatBitsToUint\n" + "#define itof intBitsToFloat\n" + "#define utof uintBitsToFloat\n\n" + "float fromHalf2(vec2 pair) {{\n" + " return utof(packHalf2x16(pair));\n" + "}}\n\n" + "vec2 toHalf2(float value) {{\n" + " return unpackHalf2x16(ftou(value));\n" + "}}\n\n" + "bvec2 halfFloatNanComparison(bvec2 comparison, vec2 pair1, vec2 pair2) {{\n" + " bvec2 is_nan1 = isnan(pair1);\n" + " bvec2 is_nan2 = isnan(pair2);\n" + " return bvec2(comparison.x || is_nan1.x || is_nan2.x, comparison.y || is_nan1.y || " + "is_nan2.y);\n" + "}}\n", + MAX_CONSTBUFFER_ELEMENTS); } ProgramResult Decompile(const Device& device, const ShaderIR& ir, Maxwell::ShaderStage stage, |