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Fix incorrect bound enforcement due to truncation

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This commit is contained in:
Jean Pierre Cimalando 2021-03-21 12:40:37 +01:00
parent 3dfc9c84f3
commit f17bc1a8bc
2 changed files with 16 additions and 2 deletions
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4
src/sfizz/Opcode.cpp
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@ -223,12 +223,12 @@ absl::optional<T> readFloat_(OpcodeSpec<T> spec, absl::string_view v)
if (spec.flags & kWrapPhase)
returnedValue = wrapPhase(returnedValue);
if (returnedValue > static_cast<int64_t>(spec.bounds.getEnd())) {
if (returnedValue > spec.bounds.getEnd()) {
if (spec.flags & kEnforceUpperBound)
return spec.bounds.getEnd();
else if (!(spec.flags & kPermissiveUpperBound))
return absl::nullopt;
} else if (returnedValue < static_cast<int64_t>(spec.bounds.getStart())) {
} else if (returnedValue < spec.bounds.getStart()) {
if (spec.flags & kEnforceLowerBound)
return spec.bounds.getStart();
else if (!(spec.flags & kPermissiveLowerBound))

14
tests/OpcodeT.cpp
View file

@ -335,6 +335,20 @@ TEST_CASE("[Opcode] opcode read (uint8_t)")
REQUIRE( opcode.read(spec) == 20 );
}
SECTION("Clamp upper (real)")
{
Opcode opcode { "", "101" };
OpcodeSpec<float> spec { 0.0f, Range<float>(0.0f, 100.5f), kEnforceUpperBound };
REQUIRE( opcode.read(spec) == 100.5f );
}
SECTION("Clamp lower (real)")
{
Opcode opcode { "", "19" };
OpcodeSpec<float> spec { 0.0f, Range<float>(19.5f, 100.0f), kEnforceLowerBound };
REQUIRE( opcode.read(spec) == 19.5f );
}
SECTION("Floating point")
{
Opcode opcode { "", "10.5" };