Fix #8674: Negative values not displaying correctly

This commit is contained in:
Michał Janiszewski 2019-02-06 22:18:58 +01:00 committed by Michael Steenbeek
parent ad888fbf9d
commit c42ded66b2
1 changed files with 22 additions and 9 deletions

View File

@ -1022,39 +1022,48 @@ static void format_string_code(uint32_t format_code, char** dest, size_t* size,
}
#endif
// Use the temporaries below to enforce sign extension, which does not happen with simple memcpy. See
// https://github.com/OpenRCT2/OpenRCT2/issues/8674. This is only required for signed values.
[[maybe_unused]] int32_t temp32;
[[maybe_unused]] int16_t temp16;
switch (format_code)
{
case FORMAT_COMMA32:
// Pop argument
std::memcpy(&value, *args, sizeof(int32_t));
std::memcpy(&temp32, *args, sizeof(int32_t));
value = temp32;
*args += 4;
format_comma_separated_integer(dest, size, value);
break;
case FORMAT_INT32:
// Pop argument
std::memcpy(&value, *args, sizeof(int32_t));
std::memcpy(&temp32, *args, sizeof(int32_t));
value = temp32;
*args += 4;
format_integer(dest, size, value);
break;
case FORMAT_COMMA2DP32:
// Pop argument
std::memcpy(&value, *args, sizeof(int32_t));
std::memcpy(&temp32, *args, sizeof(int32_t));
value = temp32;
*args += 4;
format_comma_separated_fixed_2dp(dest, size, value);
break;
case FORMAT_COMMA1DP16:
// Pop argument
std::memcpy(&value, *args, sizeof(int16_t));
std::memcpy(&temp16, *args, sizeof(int16_t));
value = temp16;
*args += 2;
format_comma_separated_fixed_1dp(dest, size, value);
break;
case FORMAT_COMMA16:
// Pop argument
std::memcpy(&value, *args, sizeof(int16_t));
std::memcpy(&temp16, *args, sizeof(int16_t));
value = temp16;
*args += 2;
format_comma_separated_integer(dest, size, value);
@ -1068,14 +1077,16 @@ static void format_string_code(uint32_t format_code, char** dest, size_t* size,
break;
case FORMAT_CURRENCY2DP:
// Pop argument
std::memcpy(&value, *args, sizeof(int32_t));
std::memcpy(&temp32, *args, sizeof(int32_t));
value = temp32;
*args += 4;
format_currency_2dp(dest, size, value);
break;
case FORMAT_CURRENCY:
// Pop argument
std::memcpy(&value, *args, sizeof(int32_t));
std::memcpy(&temp32, *args, sizeof(int32_t));
value = temp32;
*args += 4;
format_currency(dest, size, value);
@ -1112,7 +1123,8 @@ static void format_string_code(uint32_t format_code, char** dest, size_t* size,
break;
case FORMAT_VELOCITY:
// Pop argument
std::memcpy(&value, *args, sizeof(int16_t));
std::memcpy(&temp16, *args, sizeof(int16_t));
value = temp16;
*args += 2;
format_velocity(dest, size, (uint16_t)value);
@ -1139,7 +1151,8 @@ static void format_string_code(uint32_t format_code, char** dest, size_t* size,
break;
case FORMAT_LENGTH:
// Pop argument
std::memcpy(&value, *args, sizeof(int16_t));
std::memcpy(&temp16, *args, sizeof(int16_t));
value = temp16;
*args += 2;
format_length(dest, size, (int16_t)value);