diff options
Diffstat (limited to 'src/video_core/renderer_opengl/gl_shader_decompiler.cpp')
-rw-r--r-- | src/video_core/renderer_opengl/gl_shader_decompiler.cpp | 210 |
1 files changed, 124 insertions, 86 deletions
diff --git a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp index 8c43f0ead..9dbaf26d4 100644 --- a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp +++ b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp @@ -34,6 +34,17 @@ constexpr u32 PROGRAM_HEADER_SIZE = sizeof(Tegra::Shader::Header); constexpr u32 MAX_GEOMETRY_BUFFERS = 6; constexpr u32 MAX_ATTRIBUTES = 0x100; // Size in vec4s, this value is untested +static const char* INTERNAL_FLAG_NAMES[] = {"zero_flag", "sign_flag", "carry_flag", + "overflow_flag"}; + +enum class InternalFlag : u64 { + ZeroFlag = 0, + SignFlag = 1, + CarryFlag = 2, + OverflowFlag = 3, + Amount +}; + class DecompileFail : public std::runtime_error { public: using std::runtime_error::runtime_error; @@ -267,14 +278,6 @@ private: const std::string& suffix; }; -enum class InternalFlag : u64 { - ZeroFlag = 0, - CarryFlag = 1, - OverflowFlag = 2, - NaNFlag = 3, - Amount -}; - /** * Used to manage shader registers that are emulated with GLSL. This class keeps track of the state * of all registers (e.g. whether they are currently being used as Floats or Integers), and @@ -381,7 +384,7 @@ public: if (sets_cc) { const std::string zero_condition = "( " + ConvertIntegerSize(value, size) + " == 0 )"; SetInternalFlag(InternalFlag::ZeroFlag, zero_condition); - LOG_WARNING(HW_GPU, "Control Codes Imcomplete."); + LOG_WARNING(HW_GPU, "Condition codes implementation is incomplete."); } } @@ -464,23 +467,25 @@ public: shader.AddLine("lmem[" + index + "] = " + func + '(' + value + ");"); } - std::string GetControlCode(const Tegra::Shader::ControlCode cc) const { + std::string GetConditionCode(const Tegra::Shader::ConditionCode cc) const { switch (cc) { - case Tegra::Shader::ControlCode::NEU: + case Tegra::Shader::ConditionCode::NEU: return "!(" + GetInternalFlag(InternalFlag::ZeroFlag) + ')'; default: - UNIMPLEMENTED_MSG("Unimplemented Control Code: {}", static_cast<u32>(cc)); + UNIMPLEMENTED_MSG("Unimplemented condition code: {}", static_cast<u32>(cc)); return "false"; } } - std::string GetInternalFlag(const InternalFlag ii) const { - const u32 code = static_cast<u32>(ii); - return "internalFlag_" + std::to_string(code) + suffix; + std::string GetInternalFlag(const InternalFlag flag) const { + const auto index = static_cast<u32>(flag); + ASSERT(index < static_cast<u32>(InternalFlag::Amount)); + + return std::string(INTERNAL_FLAG_NAMES[index]) + '_' + suffix; } - void SetInternalFlag(const InternalFlag ii, const std::string& value) const { - shader.AddLine(GetInternalFlag(ii) + " = " + value + ';'); + void SetInternalFlag(const InternalFlag flag, const std::string& value) const { + shader.AddLine(GetInternalFlag(flag) + " = " + value + ';'); } /** @@ -495,27 +500,42 @@ public: const Register& buf_reg) { const std::string dest = GetOutputAttribute(attribute); const std::string src = GetRegisterAsFloat(val_reg); + if (dest.empty()) + return; - if (!dest.empty()) { - // Can happen with unknown/unimplemented output attributes, in which case we ignore the - // instruction for now. - if (stage == Maxwell3D::Regs::ShaderStage::Geometry) { - // TODO(Rodrigo): nouveau sets some attributes after setting emitting a geometry - // shader. These instructions use a dirty register as buffer index, to avoid some - // drivers from complaining about out of boundary writes, guard them. - const std::string buf_index{"((" + GetRegisterAsInteger(buf_reg) + ") % " + - std::to_string(MAX_GEOMETRY_BUFFERS) + ')'}; - shader.AddLine("amem[" + buf_index + "][" + - std::to_string(static_cast<u32>(attribute)) + ']' + - GetSwizzle(elem) + " = " + src + ';'); - } else { - if (attribute == Attribute::Index::PointSize) { - fixed_pipeline_output_attributes_used.insert(attribute); - shader.AddLine(dest + " = " + src + ';'); - } else { - shader.AddLine(dest + GetSwizzle(elem) + " = " + src + ';'); - } - } + // Can happen with unknown/unimplemented output attributes, in which case we ignore the + // instruction for now. + if (stage == Maxwell3D::Regs::ShaderStage::Geometry) { + // TODO(Rodrigo): nouveau sets some attributes after setting emitting a geometry + // shader. These instructions use a dirty register as buffer index, to avoid some + // drivers from complaining about out of boundary writes, guard them. + const std::string buf_index{"((" + GetRegisterAsInteger(buf_reg) + ") % " + + std::to_string(MAX_GEOMETRY_BUFFERS) + ')'}; + shader.AddLine("amem[" + buf_index + "][" + + std::to_string(static_cast<u32>(attribute)) + ']' + GetSwizzle(elem) + + " = " + src + ';'); + return; + } + + switch (attribute) { + case Attribute::Index::ClipDistances0123: + case Attribute::Index::ClipDistances4567: { + const u64 index = attribute == Attribute::Index::ClipDistances4567 ? 4 : 0 + elem; + UNIMPLEMENTED_IF_MSG( + ((header.vtg.clip_distances >> index) & 1) == 0, + "Shader is setting gl_ClipDistance{} without enabling it in the header", index); + + fixed_pipeline_output_attributes_used.insert(attribute); + shader.AddLine(dest + '[' + std::to_string(index) + "] = " + src + ';'); + break; + } + case Attribute::Index::PointSize: + fixed_pipeline_output_attributes_used.insert(attribute); + shader.AddLine(dest + " = " + src + ';'); + break; + default: + shader.AddLine(dest + GetSwizzle(elem) + " = " + src + ';'); + break; } } @@ -631,8 +651,8 @@ private: /// Generates declarations for internal flags. void GenerateInternalFlags() { - for (u32 ii = 0; ii < static_cast<u64>(InternalFlag::Amount); ii++) { - const InternalFlag code = static_cast<InternalFlag>(ii); + for (u32 flag = 0; flag < static_cast<u32>(InternalFlag::Amount); flag++) { + const InternalFlag code = static_cast<InternalFlag>(flag); declarations.AddLine("bool " + GetInternalFlag(code) + " = false;"); } declarations.AddNewLine(); @@ -735,12 +755,19 @@ private: void GenerateVertex() { if (stage != Maxwell3D::Regs::ShaderStage::Vertex) return; + bool clip_distances_declared = false; + declarations.AddLine("out gl_PerVertex {"); ++declarations.scope; declarations.AddLine("vec4 gl_Position;"); for (auto& o : fixed_pipeline_output_attributes_used) { if (o == Attribute::Index::PointSize) declarations.AddLine("float gl_PointSize;"); + if (!clip_distances_declared && (o == Attribute::Index::ClipDistances0123 || + o == Attribute::Index::ClipDistances4567)) { + declarations.AddLine("float gl_ClipDistance[];"); + clip_distances_declared = true; + } } --declarations.scope; declarations.AddLine("};"); @@ -911,6 +938,10 @@ private: return "gl_PointSize"; case Attribute::Index::Position: return "position"; + case Attribute::Index::ClipDistances0123: + case Attribute::Index::ClipDistances4567: { + return "gl_ClipDistance"; + } default: const u32 index{static_cast<u32>(attribute) - static_cast<u32>(Attribute::Index::Attribute_0)}; @@ -1526,9 +1557,8 @@ private: instr.fmul.tab5c68_0 != 1, "FMUL tab5cb8_0({}) is not implemented", instr.fmul.tab5c68_0 .Value()); // SMO typical sends 1 here which seems to be the default - UNIMPLEMENTED_IF_MSG(instr.fmul.cc != 0, "FMUL cc is not implemented"); UNIMPLEMENTED_IF_MSG(instr.generates_cc, - "FMUL Generates an unhandled Control Code"); + "Condition codes generation in FMUL is not implemented"); op_b = GetOperandAbsNeg(op_b, false, instr.fmul.negate_b); @@ -1540,7 +1570,7 @@ private: case OpCode::Id::FADD_R: case OpCode::Id::FADD_IMM: { UNIMPLEMENTED_IF_MSG(instr.generates_cc, - "FADD Generates an unhandled Control Code"); + "Condition codes generation in FADD is not implemented"); op_a = GetOperandAbsNeg(op_a, instr.alu.abs_a, instr.alu.negate_a); op_b = GetOperandAbsNeg(op_b, instr.alu.abs_b, instr.alu.negate_b); @@ -1590,7 +1620,7 @@ private: case OpCode::Id::FMNMX_R: case OpCode::Id::FMNMX_IMM: { UNIMPLEMENTED_IF_MSG(instr.generates_cc, - "FMNMX Generates an unhandled Control Code"); + "Condition codes generation in FMNMX is not implemented"); op_a = GetOperandAbsNeg(op_a, instr.alu.abs_a, instr.alu.negate_a); op_b = GetOperandAbsNeg(op_b, instr.alu.abs_b, instr.alu.negate_b); @@ -1627,7 +1657,7 @@ private: } case OpCode::Id::FMUL32_IMM: { UNIMPLEMENTED_IF_MSG(instr.op_32.generates_cc, - "FMUL32 Generates an unhandled Control Code"); + "Condition codes generation in FMUL32 is not implemented"); regs.SetRegisterToFloat(instr.gpr0, 0, regs.GetRegisterAsFloat(instr.gpr8) + " * " + @@ -1637,7 +1667,7 @@ private: } case OpCode::Id::FADD32I: { UNIMPLEMENTED_IF_MSG(instr.op_32.generates_cc, - "FADD32 Generates an unhandled Control Code"); + "Condition codes generation in FADD32I is not implemented"); std::string op_a = regs.GetRegisterAsFloat(instr.gpr8); std::string op_b = GetImmediate32(instr); @@ -1672,7 +1702,8 @@ private: switch (opcode->get().GetId()) { case OpCode::Id::BFE_IMM: { - UNIMPLEMENTED_IF_MSG(instr.generates_cc, "BFE Generates an unhandled Control Code"); + UNIMPLEMENTED_IF_MSG(instr.generates_cc, + "Condition codes generation in BFE is not implemented"); std::string inner_shift = '(' + op_a + " << " + std::to_string(instr.bfe.GetLeftShiftValue()) + ')'; @@ -1709,7 +1740,8 @@ private: case OpCode::Id::SHR_C: case OpCode::Id::SHR_R: case OpCode::Id::SHR_IMM: { - UNIMPLEMENTED_IF_MSG(instr.generates_cc, "SHR Generates an unhandled Control Code"); + UNIMPLEMENTED_IF_MSG(instr.generates_cc, + "Condition codes generation in SHR is not implemented"); if (!instr.shift.is_signed) { // Logical shift right @@ -1724,8 +1756,8 @@ private: case OpCode::Id::SHL_C: case OpCode::Id::SHL_R: case OpCode::Id::SHL_IMM: - UNIMPLEMENTED_IF_MSG(instr.generates_cc, "SHL Generates an unhandled Control Code"); - + UNIMPLEMENTED_IF_MSG(instr.generates_cc, + "Condition codes generation in SHL is not implemented"); regs.SetRegisterToInteger(instr.gpr0, true, 0, op_a + " << " + op_b, 1, 1); break; default: { @@ -1741,7 +1773,7 @@ private: switch (opcode->get().GetId()) { case OpCode::Id::IADD32I: UNIMPLEMENTED_IF_MSG(instr.op_32.generates_cc, - "IADD32 Generates an unhandled Control Code"); + "Condition codes generation in IADD32I is not implemented"); if (instr.iadd32i.negate_a) op_a = "-(" + op_a + ')'; @@ -1751,7 +1783,7 @@ private: break; case OpCode::Id::LOP32I: { UNIMPLEMENTED_IF_MSG(instr.op_32.generates_cc, - "LOP32I Generates an unhandled Control Code"); + "Condition codes generation in LOP32I is not implemented"); if (instr.alu.lop32i.invert_a) op_a = "~(" + op_a + ')'; @@ -1790,7 +1822,7 @@ private: case OpCode::Id::IADD_R: case OpCode::Id::IADD_IMM: { UNIMPLEMENTED_IF_MSG(instr.generates_cc, - "IADD Generates an unhandled Control Code"); + "Condition codes generation in IADD is not implemented"); if (instr.alu_integer.negate_a) op_a = "-(" + op_a + ')'; @@ -1806,7 +1838,7 @@ private: case OpCode::Id::IADD3_R: case OpCode::Id::IADD3_IMM: { UNIMPLEMENTED_IF_MSG(instr.generates_cc, - "IADD3 Generates an unhandled Control Code"); + "Condition codes generation in IADD3 is not implemented"); std::string op_c = regs.GetRegisterAsInteger(instr.gpr39); @@ -1869,7 +1901,7 @@ private: case OpCode::Id::ISCADD_R: case OpCode::Id::ISCADD_IMM: { UNIMPLEMENTED_IF_MSG(instr.generates_cc, - "ISCADD Generates an unhandled Control Code"); + "Condition codes generation in ISCADD is not implemented"); if (instr.alu_integer.negate_a) op_a = "-(" + op_a + ')'; @@ -1904,7 +1936,8 @@ private: case OpCode::Id::LOP_C: case OpCode::Id::LOP_R: case OpCode::Id::LOP_IMM: { - UNIMPLEMENTED_IF_MSG(instr.generates_cc, "LOP Generates an unhandled Control Code"); + UNIMPLEMENTED_IF_MSG(instr.generates_cc, + "Condition codes generation in LOP is not implemented"); if (instr.alu.lop.invert_a) op_a = "~(" + op_a + ')'; @@ -1920,7 +1953,7 @@ private: case OpCode::Id::LOP3_R: case OpCode::Id::LOP3_IMM: { UNIMPLEMENTED_IF_MSG(instr.generates_cc, - "LOP3 Generates an unhandled Control Code"); + "Condition codes generation in LOP3 is not implemented"); const std::string op_c = regs.GetRegisterAsInteger(instr.gpr39); std::string lut; @@ -1939,7 +1972,7 @@ private: case OpCode::Id::IMNMX_IMM: { UNIMPLEMENTED_IF(instr.imnmx.exchange != Tegra::Shader::IMinMaxExchange::None); UNIMPLEMENTED_IF_MSG(instr.generates_cc, - "IMNMX Generates an unhandled Control Code"); + "Condition codes generation in IMNMX is not implemented"); const std::string condition = GetPredicateCondition(instr.imnmx.pred, instr.imnmx.negate_pred != 0); @@ -2112,7 +2145,8 @@ private: instr.ffma.tab5980_0.Value()); // Seems to be 1 by default based on SMO UNIMPLEMENTED_IF_MSG(instr.ffma.tab5980_1 != 0, "FFMA tab5980_1({}) not implemented", instr.ffma.tab5980_1.Value()); - UNIMPLEMENTED_IF_MSG(instr.generates_cc, "FFMA Generates an unhandled Control Code"); + UNIMPLEMENTED_IF_MSG(instr.generates_cc, + "Condition codes generation in FFMA is not implemented"); switch (opcode->get().GetId()) { case OpCode::Id::FFMA_CR: { @@ -2222,7 +2256,8 @@ private: case OpCode::Id::I2F_C: { UNIMPLEMENTED_IF(instr.conversion.dest_size != Register::Size::Word); UNIMPLEMENTED_IF(instr.conversion.selector); - UNIMPLEMENTED_IF_MSG(instr.generates_cc, "I2F Generates an unhandled Control Code"); + UNIMPLEMENTED_IF_MSG(instr.generates_cc, + "Condition codes generation in I2F is not implemented"); std::string op_a{}; @@ -2252,7 +2287,8 @@ private: case OpCode::Id::F2F_R: { UNIMPLEMENTED_IF(instr.conversion.dest_size != Register::Size::Word); UNIMPLEMENTED_IF(instr.conversion.src_size != Register::Size::Word); - UNIMPLEMENTED_IF_MSG(instr.generates_cc, "F2F Generates an unhandled Control Code"); + UNIMPLEMENTED_IF_MSG(instr.generates_cc, + "Condition codes generation in F2F is not implemented"); std::string op_a = regs.GetRegisterAsFloat(instr.gpr20); if (instr.conversion.abs_a) { @@ -2290,7 +2326,8 @@ private: case OpCode::Id::F2I_R: case OpCode::Id::F2I_C: { UNIMPLEMENTED_IF(instr.conversion.src_size != Register::Size::Word); - UNIMPLEMENTED_IF_MSG(instr.generates_cc, "F2I Generates an unhandled Control Code"); + UNIMPLEMENTED_IF_MSG(instr.generates_cc, + "Condition codes generation in F2I is not implemented"); std::string op_a{}; if (instr.is_b_gpr) { @@ -3201,7 +3238,8 @@ private: break; } case OpCode::Type::PredicateSetRegister: { - UNIMPLEMENTED_IF_MSG(instr.generates_cc, "PSET Generates an unhandled Control Code"); + UNIMPLEMENTED_IF_MSG(instr.generates_cc, + "Condition codes generation in PSET is not implemented"); const std::string op_a = GetPredicateCondition(instr.pset.pred12, instr.pset.neg_pred12 != 0); @@ -3260,14 +3298,14 @@ private: const std::string pred = GetPredicateCondition(instr.csetp.pred39, instr.csetp.neg_pred39 != 0); const std::string combiner = GetPredicateCombiner(instr.csetp.op); - const std::string control_code = regs.GetControlCode(instr.csetp.cc); + const std::string condition_code = regs.GetConditionCode(instr.csetp.cc); if (instr.csetp.pred3 != static_cast<u64>(Pred::UnusedIndex)) { SetPredicate(instr.csetp.pred3, - '(' + control_code + ") " + combiner + " (" + pred + ')'); + '(' + condition_code + ") " + combiner + " (" + pred + ')'); } if (instr.csetp.pred0 != static_cast<u64>(Pred::UnusedIndex)) { SetPredicate(instr.csetp.pred0, - "!(" + control_code + ") " + combiner + " (" + pred + ')'); + "!(" + condition_code + ") " + combiner + " (" + pred + ')'); } break; } @@ -3398,7 +3436,8 @@ private: case OpCode::Type::Xmad: { UNIMPLEMENTED_IF(instr.xmad.sign_a); UNIMPLEMENTED_IF(instr.xmad.sign_b); - UNIMPLEMENTED_IF_MSG(instr.generates_cc, "XMAD Generates an unhandled Control Code"); + UNIMPLEMENTED_IF_MSG(instr.generates_cc, + "Condition codes generation in XMAD is not implemented"); std::string op_a{regs.GetRegisterAsInteger(instr.gpr8, 0, instr.xmad.sign_a)}; std::string op_b; @@ -3490,9 +3529,9 @@ private: default: { switch (opcode->get().GetId()) { case OpCode::Id::EXIT: { - const Tegra::Shader::ControlCode cc = instr.flow_control_code; - UNIMPLEMENTED_IF_MSG(cc != Tegra::Shader::ControlCode::T, - "EXIT Control Code used: {}", static_cast<u32>(cc)); + const Tegra::Shader::ConditionCode cc = instr.flow_condition_code; + UNIMPLEMENTED_IF_MSG(cc != Tegra::Shader::ConditionCode::T, + "EXIT condition code used: {}", static_cast<u32>(cc)); if (stage == Maxwell3D::Regs::ShaderStage::Fragment) { EmitFragmentOutputsWrite(); @@ -3524,9 +3563,9 @@ private: case OpCode::Id::KIL: { UNIMPLEMENTED_IF(instr.flow.cond != Tegra::Shader::FlowCondition::Always); - const Tegra::Shader::ControlCode cc = instr.flow_control_code; - UNIMPLEMENTED_IF_MSG(cc != Tegra::Shader::ControlCode::T, - "KIL Control Code used: {}", static_cast<u32>(cc)); + const Tegra::Shader::ConditionCode cc = instr.flow_condition_code; + UNIMPLEMENTED_IF_MSG(cc != Tegra::Shader::ConditionCode::T, + "KIL condition code used: {}", static_cast<u32>(cc)); // Enclose "discard" in a conditional, so that GLSL compilation does not complain // about unexecuted instructions that may follow this. @@ -3588,9 +3627,9 @@ private: UNIMPLEMENTED_IF_MSG(instr.bra.constant_buffer != 0, "BRA with constant buffers are not implemented"); - const Tegra::Shader::ControlCode cc = instr.flow_control_code; - UNIMPLEMENTED_IF_MSG(cc != Tegra::Shader::ControlCode::T, - "BRA Control Code used: {}", static_cast<u32>(cc)); + const Tegra::Shader::ConditionCode cc = instr.flow_condition_code; + UNIMPLEMENTED_IF_MSG(cc != Tegra::Shader::ConditionCode::T, + "BRA condition code used: {}", static_cast<u32>(cc)); const u32 target = offset + instr.bra.GetBranchTarget(); shader.AddLine("{ jmp_to = " + std::to_string(target) + "u; break; }"); @@ -3633,9 +3672,9 @@ private: break; } case OpCode::Id::SYNC: { - const Tegra::Shader::ControlCode cc = instr.flow_control_code; - UNIMPLEMENTED_IF_MSG(cc != Tegra::Shader::ControlCode::T, - "SYNC Control Code used: {}", static_cast<u32>(cc)); + const Tegra::Shader::ConditionCode cc = instr.flow_condition_code; + UNIMPLEMENTED_IF_MSG(cc != Tegra::Shader::ConditionCode::T, + "SYNC condition code used: {}", static_cast<u32>(cc)); // The SYNC opcode jumps to the address previously set by the SSY opcode EmitPopFromFlowStack(); @@ -3643,10 +3682,10 @@ private: } case OpCode::Id::BRK: { // The BRK opcode jumps to the address previously set by the PBK opcode - const Tegra::Shader::ControlCode cc = instr.flow_control_code; - if (cc != Tegra::Shader::ControlCode::T) { - UNIMPLEMENTED_MSG("BRK Control Code used: {}", static_cast<u32>(cc)); - } + const Tegra::Shader::ConditionCode cc = instr.flow_condition_code; + UNIMPLEMENTED_IF_MSG(cc != Tegra::Shader::ConditionCode::T, + "BRK condition code used: {}", static_cast<u32>(cc)); + EmitPopFromFlowStack(); break; } @@ -3657,6 +3696,9 @@ private: break; } case OpCode::Id::VMAD: { + UNIMPLEMENTED_IF_MSG(instr.generates_cc, + "Condition codes generation in VMAD is not implemented"); + const bool result_signed = instr.video.signed_a == 1 || instr.video.signed_b == 1; const std::string op_a = GetVideoOperandA(instr); const std::string op_b = GetVideoOperandB(instr); @@ -3676,10 +3718,6 @@ private: regs.SetRegisterToInteger(instr.gpr0, result_signed, 1, result, 1, 1, instr.vmad.saturate == 1, 0, Register::Size::Word, instr.vmad.cc); - if (instr.generates_cc) { - UNIMPLEMENTED_MSG("VMAD Generates an unhandled Control Code"); - } - break; } case OpCode::Id::VSETP: { |