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shader_ir/warp: Implement FSWZADD

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This commit is contained in:
ReinUsesLisp 2019-11-02 23:44:46 -03:00
parent 08b2b1080a
commit 56e237d1f9
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5 changed files with 44 additions and 0 deletions
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18
src/video_core/renderer_opengl/gl_shader_decompiler.cpp
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@ -1379,6 +1379,20 @@ private:
return GenerateUnary(operation, "float", Type::Float, type);
}
Expression FSwizzleAdd(Operation operation) {
const std::string op_a = VisitOperand(operation, 0).AsFloat();
const std::string op_b = VisitOperand(operation, 1).AsFloat();
const std::string instr_mask = VisitOperand(operation, 2).AsUint();
const std::string mask = code.GenerateTemporary();
code.AddLine("uint {} = {} >> ((gl_SubGroupInvocationARB & 3) << 1);", mask, instr_mask);
const std::string modifier_a = fmt::format("fswzadd_modifiers_a[{} & 3]", mask);
const std::string modifier_b = fmt::format("fswzadd_modifiers_b[{} & 3]", mask);
return {fmt::format("(({} * {}) + ({} * {}))", op_a, modifier_a, op_b, modifier_b),
Type::Float};
}
Expression ICastFloat(Operation operation) {
return GenerateUnary(operation, "int", Type::Int, Type::Float);
}
@ -1991,6 +2005,7 @@ private:
&GLSLDecompiler::FTrunc,
&GLSLDecompiler::FCastInteger<Type::Int>,
&GLSLDecompiler::FCastInteger<Type::Uint>,
&GLSLDecompiler::FSwizzleAdd,
&GLSLDecompiler::Add<Type::Int>,
&GLSLDecompiler::Mul<Type::Int>,
@ -2460,6 +2475,9 @@ bvec2 HalfFloatNanComparison(bvec2 comparison, vec2 pair1, vec2 pair2) {
bvec2 is_nan2 = isnan(pair2);
return bvec2(comparison.x || is_nan1.x || is_nan2.x, comparison.y || is_nan1.y || is_nan2.y);
}
const float fswzadd_modifiers_a[] = float[4](-1.0f, 1.0f, -1.0f, 0.0f );
const float fswzadd_modifiers_b[] = float[4](-1.0f, -1.0f, 1.0f, -1.0f );
)";
}