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gl_shader_decompiler: Implement HSET2_R

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This commit is contained in:
ReinUsesLisp 2018-10-15 02:10:15 -03:00
parent 4fc8ad67bf
commit 6312eec5ef
2 changed files with 62 additions and 0 deletions
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44
src/video_core/renderer_opengl/gl_shader_decompiler.cpp
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@ -2996,6 +2996,50 @@ private:
}
break;
}
case OpCode::Type::HalfSet: {
ASSERT_MSG(instr.hset2.ftz == 0, "Unimplemented");
const std::string op_a =
GetHalfFloat(regs.GetRegisterAsInteger(instr.gpr8, 0, false), instr.hset2.type_a,
instr.hset2.abs_a != 0, instr.hset2.negate_a != 0);
const std::string op_b = [&]() {
switch (opcode->GetId()) {
case OpCode::Id::HSET2_R:
return GetHalfFloat(regs.GetRegisterAsInteger(instr.gpr20, 0, false),
instr.hset2.type_b, instr.hset2.abs_b != 0,
instr.hset2.negate_b != 0);
default:
UNREACHABLE();
return std::string("vec2(0)");
}
}();
const std::string second_pred =
GetPredicateCondition(instr.hset2.pred39, instr.hset2.neg_pred != 0);
const std::string combiner = GetPredicateCombiner(instr.hset2.op);
// HSET2 operates on each half float in the pack.
std::string result;
for (int i = 0; i < 2; ++i) {
const std::string float_value = i == 0 ? "0x00003c00" : "0x3c000000";
const std::string integer_value = i == 0 ? "0x0000ffff" : "0xffff0000";
const std::string value = instr.hset2.bf == 1 ? float_value : integer_value;
const std::string comp = std::string(".") + "xy"[i];
const std::string predicate =
"((" + GetPredicateComparison(instr.hset2.cond, op_a + comp, op_b + comp) +
") " + combiner + " (" + second_pred + "))";
result += '(' + predicate + " ? " + value + " : 0)";
if (i == 0) {
result += " | ";
}
}
regs.SetRegisterToInteger(instr.gpr0, false, 0, '(' + result + ')', 1, 1);
break;
}
case OpCode::Type::Xmad: {
ASSERT_MSG(!instr.xmad.sign_a, "Unimplemented");
ASSERT_MSG(!instr.xmad.sign_b, "Unimplemented");