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[Kernel] Fix wide-printf functions not processing %ws format correctly 

This would break strings like memory://%.*ws, because the %ws would set FF_IsWide, but FF_IsWide is actually treated as an "is opposite encoding" flag.
Since the function is already wide, that flag would make it think it's opposite encoding and it'd try reading the param as ASCII instead of Unicode...
This commit is contained in:
emoose 2020-01-10 22:55:19 +00:00
parent 213f7b9a6a
commit ea2adc9d77
1 changed files with 6 additions and 3 deletions
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9
src/xenia/kernel/xboxkrnl/xboxkrnl_strings.cc
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@ -49,6 +49,9 @@ enum FormatFlags {
FF_IsWide = 1 << 9,
FF_IsSigned = 1 << 10,
FF_ForceLeadingZero = 1 << 11,
// IsWide gets used as an "is opposite encoding" flag, but this flag means
// it's definitely wide
FF_IsAlwaysWide = 1 << 12,
};
enum ArgumentSize {
@ -292,7 +295,7 @@ int32_t format_core(PPCContext* ppc_context, FormatData& data, ArgList& args,
state = FS_Type;
continue;
} else if (c == 'w') {
flags |= FF_IsWide;
flags |= (FF_IsWide | FF_IsAlwaysWide);
state = FS_Type;
continue;
} else if (c == 'I') {
@ -337,7 +340,7 @@ int32_t format_core(PPCContext* ppc_context, FormatData& data, ArgList& args,
// functions and with C in wprintf functions."
is_wide = false;
} else {
is_wide = ((flags & FF_IsWide) != 0) ^ wide;
is_wide = (((flags & FF_IsWide) != 0) ^ wide) || (flags & FF_IsAlwaysWide) != 0;
}
auto value = args.get32();
@ -552,7 +555,7 @@ int32_t format_core(PPCContext* ppc_context, FormatData& data, ArgList& args,
// functions and with S in wprintf functions."
is_wide = false;
} else {
is_wide = ((flags & (FF_IsWide)) != 0) ^ wide;
is_wide = (((flags & (FF_IsWide)) != 0) ^ wide) || (flags & FF_IsAlwaysWide) != 0;
}
int32_t length;