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Merge pull request #8740 from JosJuice/fix-decompress

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DiscIO: Fix decompressing writing the wrong number of bytes sometimes
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Markus Wick 2020-04-24 10:42:46 +02:00 committed by GitHub
commit 7e94d6ed37
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1 changed files with 3 additions and 3 deletions
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6
Source/Core/DiscIO/CompressedBlob.cpp
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@ -371,7 +371,6 @@ bool DecompressBlobToFile(const std::string& infile_path, const std::string& out
const CompressedBlobHeader& header = reader->GetHeader();
static const size_t BUFFER_BLOCKS = 32;
size_t buffer_size = header.block_size * BUFFER_BLOCKS;
size_t last_buffer_size = header.block_size * (header.num_blocks % BUFFER_BLOCKS);
std::vector<u8> buffer(buffer_size);
u32 num_buffers = (header.num_blocks + BUFFER_BLOCKS - 1) / BUFFER_BLOCKS;
int progress_monitor = std::max<int>(1, num_buffers / 100);
@ -389,8 +388,9 @@ bool DecompressBlobToFile(const std::string& infile_path, const std::string& out
break;
}
}
const size_t sz = i == num_buffers - 1 ? last_buffer_size : buffer_size;
reader->Read(i * buffer_size, sz, buffer.data());
const u64 inpos = i * buffer_size;
const u64 sz = std::min<u64>(buffer_size, header.data_size - inpos);
reader->Read(inpos, sz, buffer.data());
if (!outfile.WriteBytes(buffer.data(), sz))
{
PanicAlertT("Failed to write the output file \"%s\".\n"