TGCBlob: Use file_area_real_offset as split point

Part one of fixing TGC files where file_area_virtual_offset is
smaller than file_area_real_offset, such as Zelda OoT Master Quest.
This commit is contained in:
JosJuice 2017-10-08 12:16:10 +02:00
parent ec7ed7b47a
commit 18c7608516
1 changed files with 3 additions and 2 deletions

View File

@ -90,8 +90,9 @@ bool TGCFileReader::Read(u64 offset, u64 nbytes, u8* out_ptr)
Interval<u64> file_part;
const u32 tgc_header_size = Common::swap32(m_header.tgc_header_size);
SplitInterval(m_file_area_shift, Interval<u64>{offset, nbytes}, &first_part, &file_part);
SplitInterval(m_size - tgc_header_size, first_part, &first_part, &empty_part);
const u64 split_point = Common::swap32(m_header.file_area_real_offset) - tgc_header_size;
SplitInterval(split_point, Interval<u64>{offset, nbytes}, &first_part, &file_part);
SplitInterval(m_file_area_shift - tgc_header_size, file_part, &empty_part, &file_part);
// Offsets in the initial areas of the disc are unshifted
// (except for InternalRead's constant shift by tgc_header_size).