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Use static buffer for file chunking and compressing during VPK packing

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Avoid using new every time. Chunk can be at most 1024 * 1024.
This commit is contained in:
Kawe Mazidjatari 2022-10-02 12:17:03 +02:00
parent 33e1795cf1
commit 0451a75f85
2 changed files with 36 additions and 16 deletions
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31
r5dev/vpklib/packedstore.cpp
View File

@ -13,6 +13,13 @@
#include "mathlib/sha1.h"
#include "vpklib/packedstore.h"
//-----------------------------------------------------------------------------
// Single static buffer for the source entry, which is the source file chunked
// into ENTRY_MAX_LEN bytes (1024 * 1024). The compressed chunk size is always
// lower than the source chunk size with the light modifications done to the LZHAM lib.
//-----------------------------------------------------------------------------
static uint8_t s_pEntryBuffer[ENTRY_MAX_LEN];
//-----------------------------------------------------------------------------
// Purpose: initialize parameters for compression algorithm
//-----------------------------------------------------------------------------
@ -499,18 +506,15 @@ void CPackedStore::PackAll(const VPKPair_t& vPair, const string& svPathIn, const
vEntryBlocks.push_back(VPKEntryBlock_t(reader.GetVector(), writer.GetPosition(), iPreloadSize, 0, nLoadFlags, nTextureFlags, svDestPath));
for (size_t j = 0; j < vEntryBlocks[i].m_vChunks.size(); j++)
{
uint8_t* pSrc = new uint8_t[vEntryBlocks[i].m_vChunks[j].m_nUncompressedSize];
uint8_t* pDest = new uint8_t[vEntryBlocks[i].m_vChunks[j].m_nUncompressedSize];
bool bShared = false;
bool bCompressed = bUseCompression;
reader.Read(*pSrc, vEntryBlocks[i].m_vChunks[j].m_nUncompressedSize);
reader.Read(*s_pEntryBuffer, vEntryBlocks[i].m_vChunks[j].m_nUncompressedSize);
vEntryBlocks[i].m_vChunks[j].m_nArchiveOffset = writer.GetPosition();
if (bUseDataSharing)
{
string svEntryHash = sha1(string(reinterpret_cast<char*>(pSrc), vEntryBlocks[i].m_vChunks[j].m_nUncompressedSize));
string svEntryHash = sha1(string(reinterpret_cast<char*>(s_pEntryBuffer), vEntryBlocks[i].m_vChunks[j].m_nUncompressedSize));
auto p = m_mChunkHashMap.insert({ svEntryHash, vEntryBlocks[i].m_vChunks[j] });
if (p.second)
@ -532,34 +536,33 @@ void CPackedStore::PackAll(const VPKPair_t& vPair, const string& svPathIn, const
{
if (bUseCompression)
{
m_lzCompStatus = lzham_compress_memory(&m_lzCompParams, pDest,
&vEntryBlocks[i].m_vChunks[j].m_nCompressedSize, pSrc,
m_lzCompStatus = lzham_compress_memory(&m_lzCompParams, s_pEntryBuffer,
&vEntryBlocks[i].m_vChunks[j].m_nCompressedSize, s_pEntryBuffer,
vEntryBlocks[i].m_vChunks[j].m_nUncompressedSize, &m_nAdler32_Internal, &m_nCrc32_Internal);
if (m_lzCompStatus != lzham_compress_status_t::LZHAM_COMP_STATUS_SUCCESS)
{
Warning(eDLL_T::FS, "Status '%d' for chunk '%zu' within entry '%zu' in block '%hu' (chunk packed without compression)\n",
m_lzCompStatus, j, i, vEntryBlocks[i].m_iPackFileIndex);
vEntryBlocks[i].m_vChunks[j].m_nCompressedSize = vEntryBlocks[i].m_vChunks[j].m_nUncompressedSize;
memmove(pDest, pSrc, vEntryBlocks[i].m_vChunks[j].m_nUncompressedSize);
}
}
else // Write data uncompressed.
{
vEntryBlocks[i].m_vChunks[j].m_nCompressedSize = vEntryBlocks[i].m_vChunks[j].m_nUncompressedSize;
memmove(pDest, pSrc, vEntryBlocks[i].m_vChunks[j].m_nUncompressedSize);
}
vEntryBlocks[i].m_vChunks[j].m_bIsCompressed = vEntryBlocks[i].m_vChunks[j].m_nCompressedSize != vEntryBlocks[i].m_vChunks[j].m_nUncompressedSize;
writer.Write(pDest, vEntryBlocks[i].m_vChunks[j].m_nCompressedSize);
}
delete[] pDest;
delete[] pSrc;
vEntryBlocks[i].m_vChunks[j].m_bIsCompressed = vEntryBlocks[i].m_vChunks[j].m_nCompressedSize != vEntryBlocks[i].m_vChunks[j].m_nUncompressedSize;
writer.Write(s_pEntryBuffer, vEntryBlocks[i].m_vChunks[j].m_nCompressedSize);
}
}
}
}
DevMsg(eDLL_T::FS, "*** Build block totaling '%zu' bytes with '%zu' shared bytes among '%lu' chunks\n", writer.GetPosition(), nSharedTotal, nSharedCount);
m_mChunkHashMap.clear();
memset(s_pEntryBuffer, '\0', sizeof(s_pEntryBuffer));
VPKDir_t vDir = VPKDir_t();
vDir.Build(svPathOut + vPair.m_svDirectoryName, vEntryBlocks);

21
r5dev/vpklib/packedstore.h
View File

@ -8,8 +8,25 @@ constexpr unsigned int VPK_MINOR_VERSION = 3;
constexpr unsigned int VPK_DICT_SIZE = 20;
constexpr int ENTRY_MAX_LEN = 1024 * 1024;
const vector<string> DIR_CONTEXT = { "server", "client" };
const vector<string> DIR_LOCALE = { "english", "french", "german", "italian", "japanese", "korean", "polish", "portuguese", "russian", "spanish", "tchinese" };
static const vector<string> DIR_CONTEXT =
{
"server",
"client"
};
static const vector<string> DIR_LOCALE =
{
"english",
"french",
"german",
"italian",
"japanese",
"korean",
"polish",
"portuguese",
"russian",
"spanish",
"tchinese"
};
enum class EPackedLoadFlags : int
{