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Code Issues Releases Activity

gl_shader_decompiler: Implement LD_C instruction.

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This commit is contained in:
bunnei 2018-06-05 23:46:23 -04:00
parent 4112aa68a6
commit 4669f15f8b
2 changed files with 43 additions and 0 deletions
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16
src/video_core/engines/shader_bytecode.h
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@ -175,6 +175,15 @@ enum class FloatRoundingOp : u64 {
Trunc = 3,
};
enum class UniformType : u64 {
UnsignedByte = 0,
SignedByte = 1,
UnsignedShort = 2,
SignedShort = 3,
Single = 4,
Double = 5,
};
union Instruction {
Instruction& operator=(const Instruction& instr) {
value = instr.value;
@ -252,6 +261,11 @@ union Instruction {
BitField<49, 1, u64> negate_c;
} ffma;
union {
BitField<48, 3, UniformType> type;
BitField<44, 2, u64> unknown;
} ld_c;
union {
BitField<0, 3, u64> pred0;
BitField<3, 3, u64> pred3;
@ -378,6 +392,7 @@ public:
KIL,
BRA,
LD_A,
LD_C,
ST_A,
TEX,
TEXQ, // Texture Query
@ -552,6 +567,7 @@ private:
INST("111000110011----", Id::KIL, Type::Flow, "KIL"),
INST("111000100100----", Id::BRA, Type::Flow, "BRA"),
INST("1110111111011---", Id::LD_A, Type::Memory, "LD_A"),
INST("1110111110010---", Id::LD_C, Type::Memory, "LD_C"),
INST("1110111111110---", Id::ST_A, Type::Memory, "ST_A"),
INST("1100000000111---", Id::TEX, Type::Memory, "TEX"),
INST("1101111101001---", Id::TEXQ, Type::Memory, "TEXQ"),

27
src/video_core/renderer_opengl/gl_shader_decompiler.cpp
View file

@ -1090,6 +1090,33 @@ private:
attribute);
break;
}
case OpCode::Id::LD_C: {
ASSERT_MSG(instr.ld_c.unknown == 0, "Unimplemented");
std::string op_a =
regs.GetUniformIndirect(instr.cbuf36.index, instr.cbuf36.offset + 0, instr.gpr8,
GLSLRegister::Type::Float);
std::string op_b =
regs.GetUniformIndirect(instr.cbuf36.index, instr.cbuf36.offset + 4, instr.gpr8,
GLSLRegister::Type::Float);
switch (instr.ld_c.type.Value()) {
case Tegra::Shader::UniformType::Single:
regs.SetRegisterToFloat(instr.gpr0, 0, op_a, 1, 1);
break;
case Tegra::Shader::UniformType::Double:
regs.SetRegisterToFloat(instr.gpr0, 0, op_a, 1, 1);
regs.SetRegisterToFloat(instr.gpr0.Value() + 1, 0, op_b, 1, 1);
break;
default:
NGLOG_CRITICAL(HW_GPU, "Unhandled type: {}",
static_cast<unsigned>(instr.ld_c.type.Value()));
UNREACHABLE();
}
break;
}
case OpCode::Id::ST_A: {
ASSERT_MSG(instr.attribute.fmt20.size == 0, "untested");
regs.SetOutputAttributeToRegister(attribute, instr.attribute.fmt20.element,