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 | 185 |
1 files changed, 138 insertions, 47 deletions
diff --git a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp index 4e7d4a24e..b3e95187e 100644 --- a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp +++ b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp @@ -12,6 +12,7 @@ #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/renderer_opengl/gl_rasterizer.h" #include "video_core/renderer_opengl/gl_shader_decompiler.h" @@ -26,7 +27,7 @@ using Tegra::Shader::Sampler; using Tegra::Shader::SubOp; constexpr u32 PROGRAM_END = MAX_PROGRAM_CODE_LENGTH; -constexpr u32 PROGRAM_HEADER_SIZE = 0x50; +constexpr u32 PROGRAM_HEADER_SIZE = sizeof(Tegra::Shader::Header); class DecompileFail : public std::runtime_error { public: @@ -235,6 +236,14 @@ 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 @@ -328,13 +337,19 @@ public: void SetRegisterToInteger(const Register& reg, bool is_signed, u64 elem, const std::string& value, u64 dest_num_components, u64 value_num_components, bool is_saturated = false, - u64 dest_elem = 0, Register::Size size = Register::Size::Word) { + u64 dest_elem = 0, Register::Size size = Register::Size::Word, + bool sets_cc = false) { ASSERT_MSG(!is_saturated, "Unimplemented"); const std::string func{is_signed ? "intBitsToFloat" : "uintBitsToFloat"}; SetRegister(reg, elem, func + '(' + ConvertIntegerSize(value, size) + ')', dest_num_components, value_num_components, dest_elem); + + if (sets_cc) { + const std::string zero_condition = "( " + ConvertIntegerSize(value, size) + " == 0 )"; + SetInternalFlag(InternalFlag::ZeroFlag, zero_condition); + } } /** @@ -351,6 +366,26 @@ public: shader.AddLine(dest + " = " + src + ';'); } + std::string GetControlCode(const Tegra::Shader::ControlCode cc) const { + switch (cc) { + case Tegra::Shader::ControlCode::NEU: + return "!(" + GetInternalFlag(InternalFlag::ZeroFlag) + ')'; + default: + LOG_CRITICAL(HW_GPU, "Unimplemented Control Code {}", static_cast<u32>(cc)); + UNREACHABLE(); + return "false"; + } + } + + std::string GetInternalFlag(const InternalFlag ii) const { + const u32 code = static_cast<u32>(ii); + return "internalFlag_" + std::to_string(code) + suffix; + } + + void SetInternalFlag(const InternalFlag ii, const std::string& value) const { + shader.AddLine(GetInternalFlag(ii) + " = " + value + ';'); + } + /** * Writes code that does a output attribute assignment to register operation. Output attributes * are stored as floats, so this may require conversion. @@ -414,6 +449,12 @@ public: } declarations.AddNewLine(); + for (u32 ii = 0; ii < static_cast<u64>(InternalFlag::Amount); ii++) { + const InternalFlag code = static_cast<InternalFlag>(ii); + declarations.AddLine("bool " + GetInternalFlag(code) + " = false;"); + } + declarations.AddNewLine(); + for (const auto element : declr_input_attribute) { // TODO(bunnei): Use proper number of elements for these u32 idx = @@ -674,7 +715,7 @@ public: u32 main_offset, Maxwell3D::Regs::ShaderStage stage, const std::string& suffix) : subroutines(subroutines), program_code(program_code), main_offset(main_offset), stage(stage), suffix(suffix) { - + std::memcpy(&header, program_code.data(), sizeof(Tegra::Shader::Header)); Generate(suffix); } @@ -688,23 +729,6 @@ public: } private: - // Shader program header for a Fragment Shader. - struct FragmentHeader { - INSERT_PADDING_WORDS(5); - INSERT_PADDING_WORDS(13); - u32 enabled_color_outputs; - union { - BitField<0, 1, u32> writes_samplemask; - BitField<1, 1, u32> writes_depth; - }; - - bool IsColorComponentOutputEnabled(u32 render_target, u32 component) const { - const u32 bit = render_target * 4 + component; - return enabled_color_outputs & (1 << bit); - } - }; - static_assert(sizeof(FragmentHeader) == PROGRAM_HEADER_SIZE, "FragmentHeader size is wrong"); - /// Gets the Subroutine object corresponding to the specified address. const Subroutine& GetSubroutine(u32 begin, u32 end) const { const auto iter = subroutines.find(Subroutine{begin, end, suffix}); @@ -954,8 +978,6 @@ private: // TEXS has two destination registers and a swizzle. The first two elements in the swizzle // go into gpr0+0 and gpr0+1, and the rest goes into gpr28+0 and gpr28+1 - ASSERT_MSG(instr.texs.nodep == 0, "TEXS nodep not implemented"); - std::size_t written_components = 0; for (u32 component = 0; component < 4; ++component) { if (!instr.texs.IsComponentEnabled(component)) { @@ -1010,10 +1032,8 @@ private: /// Writes the output values from a fragment shader to the corresponding GLSL output variables. void EmitFragmentOutputsWrite() { ASSERT(stage == Maxwell3D::Regs::ShaderStage::Fragment); - FragmentHeader header; - std::memcpy(&header, program_code.data(), PROGRAM_HEADER_SIZE); - ASSERT_MSG(header.writes_samplemask == 0, "Samplemask write is unimplemented"); + ASSERT_MSG(header.ps.omap.sample_mask == 0, "Samplemask write is unimplemented"); // Write the color outputs using the data in the shader registers, disabled // rendertargets/components are skipped in the register assignment. @@ -1022,7 +1042,7 @@ private: ++render_target) { // TODO(Subv): Figure out how dual-source blending is configured in the Switch. for (u32 component = 0; component < 4; ++component) { - if (header.IsColorComponentOutputEnabled(render_target, component)) { + if (header.ps.IsColorComponentOutputEnabled(render_target, component)) { shader.AddLine(fmt::format("FragColor{}[{}] = {};", render_target, component, regs.GetRegisterAsFloat(current_reg))); ++current_reg; @@ -1030,7 +1050,7 @@ private: } } - if (header.writes_depth) { + 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. @@ -1640,7 +1660,8 @@ private: } regs.SetRegisterToInteger(instr.gpr0, instr.conversion.is_output_signed, 0, op_a, 1, - 1, instr.alu.saturate_d, 0, instr.conversion.dest_size); + 1, instr.alu.saturate_d, 0, instr.conversion.dest_size, + instr.generates_cc.Value() != 0); break; } case OpCode::Id::I2F_R: @@ -1871,6 +1892,13 @@ private: Tegra::Shader::TextureType texture_type{instr.tex.texture_type}; std::string coord; + ASSERT_MSG(!instr.tex.UsesMiscMode(Tegra::Shader::TextureMiscMode::NODEP), + "NODEP is not implemented"); + ASSERT_MSG(!instr.tex.UsesMiscMode(Tegra::Shader::TextureMiscMode::AOFFI), + "AOFFI is not implemented"); + ASSERT_MSG(!instr.tex.UsesMiscMode(Tegra::Shader::TextureMiscMode::DC), + "DC is not implemented"); + switch (texture_type) { case Tegra::Shader::TextureType::Texture1D: { const std::string x = regs.GetRegisterAsFloat(instr.gpr8); @@ -1953,6 +1981,11 @@ private: Tegra::Shader::TextureType texture_type{instr.texs.GetTextureType()}; bool is_array{instr.texs.IsArrayTexture()}; + ASSERT_MSG(!instr.texs.UsesMiscMode(Tegra::Shader::TextureMiscMode::NODEP), + "NODEP is not implemented"); + ASSERT_MSG(!instr.texs.UsesMiscMode(Tegra::Shader::TextureMiscMode::DC), + "DC is not implemented"); + switch (texture_type) { case Tegra::Shader::TextureType::Texture2D: { if (is_array) { @@ -1989,6 +2022,13 @@ private: ASSERT(instr.tlds.IsArrayTexture() == false); std::string coord; + ASSERT_MSG(!instr.tlds.UsesMiscMode(Tegra::Shader::TextureMiscMode::NODEP), + "NODEP is not implemented"); + ASSERT_MSG(!instr.tlds.UsesMiscMode(Tegra::Shader::TextureMiscMode::AOFFI), + "AOFFI is not implemented"); + ASSERT_MSG(!instr.tlds.UsesMiscMode(Tegra::Shader::TextureMiscMode::MZ), + "MZ is not implemented"); + switch (instr.tlds.GetTextureType()) { case Tegra::Shader::TextureType::Texture2D: { if (instr.tlds.IsArrayTexture()) { @@ -2017,6 +2057,17 @@ private: ASSERT(instr.tld4.array == 0); std::string coord; + ASSERT_MSG(!instr.tld4.UsesMiscMode(Tegra::Shader::TextureMiscMode::NODEP), + "NODEP is not implemented"); + ASSERT_MSG(!instr.tld4.UsesMiscMode(Tegra::Shader::TextureMiscMode::AOFFI), + "AOFFI is not implemented"); + ASSERT_MSG(!instr.tld4.UsesMiscMode(Tegra::Shader::TextureMiscMode::DC), + "DC is not implemented"); + ASSERT_MSG(!instr.tld4.UsesMiscMode(Tegra::Shader::TextureMiscMode::NDV), + "NDV is not implemented"); + ASSERT_MSG(!instr.tld4.UsesMiscMode(Tegra::Shader::TextureMiscMode::PTP), + "PTP is not implemented"); + switch (instr.tld4.texture_type) { case Tegra::Shader::TextureType::Texture2D: { const std::string x = regs.GetRegisterAsFloat(instr.gpr8); @@ -2054,6 +2105,13 @@ private: break; } case OpCode::Id::TLD4S: { + ASSERT_MSG(!instr.tld4s.UsesMiscMode(Tegra::Shader::TextureMiscMode::NODEP), + "NODEP is not implemented"); + ASSERT_MSG(!instr.tld4s.UsesMiscMode(Tegra::Shader::TextureMiscMode::AOFFI), + "AOFFI is not implemented"); + ASSERT_MSG(!instr.tld4s.UsesMiscMode(Tegra::Shader::TextureMiscMode::DC), + "DC is not implemented"); + const std::string op_a = regs.GetRegisterAsFloat(instr.gpr8); const std::string op_b = regs.GetRegisterAsFloat(instr.gpr20); // TODO(Subv): Figure out how the sampler type is encoded in the TLD4S instruction. @@ -2066,6 +2124,9 @@ private: break; } case OpCode::Id::TXQ: { + ASSERT_MSG(!instr.txq.UsesMiscMode(Tegra::Shader::TextureMiscMode::NODEP), + "NODEP is not implemented"); + // TODO: the new commits on the texture refactor, change the way samplers work. // Sadly, not all texture instructions specify the type of texture their sampler // uses. This must be fixed at a later instance. @@ -2086,6 +2147,11 @@ private: break; } case OpCode::Id::TMML: { + ASSERT_MSG(!instr.tmml.UsesMiscMode(Tegra::Shader::TextureMiscMode::NODEP), + "NODEP is not implemented"); + ASSERT_MSG(!instr.tmml.UsesMiscMode(Tegra::Shader::TextureMiscMode::NDV), + "NDV is not implemented"); + const std::string op_a = regs.GetRegisterAsFloat(instr.gpr8); const std::string op_b = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1); const bool is_array = instr.tmml.array != 0; @@ -2252,31 +2318,55 @@ private: break; } case OpCode::Type::PredicateSetPredicate: { - const std::string op_a = - GetPredicateCondition(instr.psetp.pred12, instr.psetp.neg_pred12 != 0); - const std::string op_b = - GetPredicateCondition(instr.psetp.pred29, instr.psetp.neg_pred29 != 0); + switch (opcode->GetId()) { + case OpCode::Id::PSETP: { + const std::string op_a = + GetPredicateCondition(instr.psetp.pred12, instr.psetp.neg_pred12 != 0); + const std::string op_b = + GetPredicateCondition(instr.psetp.pred29, instr.psetp.neg_pred29 != 0); - // We can't use the constant predicate as destination. - ASSERT(instr.psetp.pred3 != static_cast<u64>(Pred::UnusedIndex)); + // We can't use the constant predicate as destination. + ASSERT(instr.psetp.pred3 != static_cast<u64>(Pred::UnusedIndex)); - const std::string second_pred = - GetPredicateCondition(instr.psetp.pred39, instr.psetp.neg_pred39 != 0); + const std::string second_pred = + GetPredicateCondition(instr.psetp.pred39, instr.psetp.neg_pred39 != 0); - const std::string combiner = GetPredicateCombiner(instr.psetp.op); + const std::string combiner = GetPredicateCombiner(instr.psetp.op); - const std::string predicate = - '(' + op_a + ") " + GetPredicateCombiner(instr.psetp.cond) + " (" + op_b + ')'; + const std::string predicate = + '(' + op_a + ") " + GetPredicateCombiner(instr.psetp.cond) + " (" + op_b + ')'; - // Set the primary predicate to the result of Predicate OP SecondPredicate - SetPredicate(instr.psetp.pred3, - '(' + predicate + ") " + combiner + " (" + second_pred + ')'); + // Set the primary predicate to the result of Predicate OP SecondPredicate + SetPredicate(instr.psetp.pred3, + '(' + predicate + ") " + combiner + " (" + second_pred + ')'); - if (instr.psetp.pred0 != static_cast<u64>(Pred::UnusedIndex)) { - // Set the secondary predicate to the result of !Predicate OP SecondPredicate, - // if enabled - SetPredicate(instr.psetp.pred0, - "!(" + predicate + ") " + combiner + " (" + second_pred + ')'); + if (instr.psetp.pred0 != static_cast<u64>(Pred::UnusedIndex)) { + // Set the secondary predicate to the result of !Predicate OP SecondPredicate, + // if enabled + SetPredicate(instr.psetp.pred0, + "!(" + predicate + ") " + combiner + " (" + second_pred + ')'); + } + break; + } + case OpCode::Id::CSETP: { + const std::string pred = + GetPredicateCondition(instr.csetp.pred39, instr.csetp.neg_pred39 != 0); + const std::string combiner = GetPredicateCombiner(instr.csetp.op); + const std::string controlCode = regs.GetControlCode(instr.csetp.cc); + if (instr.csetp.pred3 != static_cast<u64>(Pred::UnusedIndex)) { + SetPredicate(instr.csetp.pred3, + '(' + controlCode + ") " + combiner + " (" + pred + ')'); + } + if (instr.csetp.pred0 != static_cast<u64>(Pred::UnusedIndex)) { + SetPredicate(instr.csetp.pred0, + "!(" + controlCode + ") " + combiner + " (" + pred + ')'); + } + break; + } + default: { + LOG_CRITICAL(HW_GPU, "Unhandled predicate instruction: {}", opcode->GetName()); + UNREACHABLE(); + } } break; } @@ -2666,6 +2756,7 @@ private: private: const std::set<Subroutine>& subroutines; const ProgramCode& program_code; + Tegra::Shader::Header header; const u32 main_offset; Maxwell3D::Regs::ShaderStage stage; const std::string& suffix; |