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save state: fix rzip compression error

This commit is contained in:
Flyinghead 2021-03-16 10:16:29 +01:00
parent 58c936fa6c
commit ee109d0fec
1 changed files with 9 additions and 3 deletions
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12
core/archive/rzip.cpp
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@ -112,14 +112,20 @@ size_t RZipFile::Write(const void *data, size_t length)
|| std::fwrite(&length, sizeof(length), 1, file) != 1)
return 0;
const u8 *p = (const u8 *)data;
u8 *zipped = new u8[maxChunkSize];
// compression output buffer must be 0.1% larger + 12 bytes
uLongf maxZippedSize = maxChunkSize + maxChunkSize / 1000 + 12;
u8 *zipped = new u8[maxZippedSize];
size_t rv = 0;
while (rv < length)
{
uLongf zippedSize = maxChunkSize;
uLongf zippedSize = maxZippedSize;
uLongf uncompressedSize = std::min(maxChunkSize, (u32)(length - rv));
if (compress(zipped, &zippedSize, p, uncompressedSize) != Z_OK)
u32 rc = compress(zipped, &zippedSize, p, uncompressedSize);
if (rc != Z_OK)
{
WARN_LOG(SAVESTATE, "Compression error: %d", rc);
break;
}
u32 sz = (u32)zippedSize;
if (std::fwrite(&sz, sizeof(sz), 1, file) != 1
|| std::fwrite(zipped, zippedSize, 1, file) != 1)