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3e5a2888bc
Previously, the client would crash with an assertion when writing more than 1024 items, 1024 data items or 64 extended item types to a map file. This arbitrary limitation is removed by using `std::vector`s, so much larger maps can be written. This was only a limitation when writing map files. Old clients can correctly read the map files having more items/data but will crash when the map is saved in the editor.
944 lines
25 KiB
C++
944 lines
25 KiB
C++
/* (c) Magnus Auvinen. See licence.txt in the root of the distribution for more information. */
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/* If you are missing that file, acquire a complete release at teeworlds.com. */
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#include "datafile.h"
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#include <base/hash_ctxt.h>
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#include <base/log.h>
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#include <base/math.h>
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#include <base/system.h>
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#include <engine/storage.h>
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#include "uuid_manager.h"
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#include <cstdlib>
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#include <limits>
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static const int DEBUG = 0;
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enum
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{
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OFFSET_UUID_TYPE = 0x8000,
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};
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struct CItemEx
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{
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int m_aUuid[sizeof(CUuid) / sizeof(int32_t)];
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static CItemEx FromUuid(CUuid Uuid)
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{
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CItemEx Result;
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for(size_t i = 0; i < sizeof(CUuid) / sizeof(int32_t); i++)
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Result.m_aUuid[i] = bytes_be_to_uint(&Uuid.m_aData[i * sizeof(int32_t)]);
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return Result;
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}
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CUuid ToUuid() const
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{
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CUuid Result;
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for(size_t i = 0; i < sizeof(CUuid) / sizeof(int32_t); i++)
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uint_to_bytes_be(&Result.m_aData[i * sizeof(int32_t)], m_aUuid[i]);
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return Result;
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}
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};
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struct CDatafileItemType
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{
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int m_Type;
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int m_Start;
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int m_Num;
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};
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struct CDatafileItem
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{
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int m_TypeAndID;
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int m_Size;
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};
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struct CDatafileHeader
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{
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char m_aID[4];
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int m_Version;
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int m_Size;
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int m_Swaplen;
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int m_NumItemTypes;
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int m_NumItems;
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int m_NumRawData;
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int m_ItemSize;
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int m_DataSize;
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constexpr size_t SizeOffset()
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{
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// The size of these members is not included in m_Size and m_Swaplen
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return sizeof(m_aID) + sizeof(m_Version) + sizeof(m_Size) + sizeof(m_Swaplen);
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}
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};
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struct CDatafileInfo
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{
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CDatafileItemType *m_pItemTypes;
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int *m_pItemOffsets;
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int *m_pDataOffsets;
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int *m_pDataSizes;
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char *m_pItemStart;
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char *m_pDataStart;
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};
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struct CDatafile
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{
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IOHANDLE m_File;
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SHA256_DIGEST m_Sha256;
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unsigned m_Crc;
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CDatafileInfo m_Info;
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CDatafileHeader m_Header;
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int m_DataStartOffset;
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char **m_ppDataPtrs;
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int *m_pDataSizes;
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char *m_pData;
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};
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bool CDataFileReader::Open(class IStorage *pStorage, const char *pFilename, int StorageType)
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{
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log_trace("datafile", "loading. filename='%s'", pFilename);
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IOHANDLE File = pStorage->OpenFile(pFilename, IOFLAG_READ, StorageType);
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if(!File)
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{
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dbg_msg("datafile", "could not open '%s'", pFilename);
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return false;
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}
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// take the CRC of the file and store it
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unsigned Crc = 0;
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SHA256_DIGEST Sha256;
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{
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enum
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{
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BUFFER_SIZE = 64 * 1024
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};
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SHA256_CTX Sha256Ctxt;
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sha256_init(&Sha256Ctxt);
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unsigned char aBuffer[BUFFER_SIZE];
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while(true)
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{
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unsigned Bytes = io_read(File, aBuffer, BUFFER_SIZE);
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if(Bytes == 0)
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break;
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Crc = crc32(Crc, aBuffer, Bytes);
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sha256_update(&Sha256Ctxt, aBuffer, Bytes);
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}
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Sha256 = sha256_finish(&Sha256Ctxt);
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io_seek(File, 0, IOSEEK_START);
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}
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// TODO: change this header
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CDatafileHeader Header;
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if(sizeof(Header) != io_read(File, &Header, sizeof(Header)))
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{
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dbg_msg("datafile", "couldn't load header");
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return false;
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}
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if(Header.m_aID[0] != 'A' || Header.m_aID[1] != 'T' || Header.m_aID[2] != 'A' || Header.m_aID[3] != 'D')
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{
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if(Header.m_aID[0] != 'D' || Header.m_aID[1] != 'A' || Header.m_aID[2] != 'T' || Header.m_aID[3] != 'A')
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{
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dbg_msg("datafile", "wrong signature. %x %x %x %x", Header.m_aID[0], Header.m_aID[1], Header.m_aID[2], Header.m_aID[3]);
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return false;
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}
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}
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#if defined(CONF_ARCH_ENDIAN_BIG)
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swap_endian(&Header, sizeof(int), sizeof(Header) / sizeof(int));
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#endif
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if(Header.m_Version != 3 && Header.m_Version != 4)
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{
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dbg_msg("datafile", "wrong version. version=%x", Header.m_Version);
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return false;
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}
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// read in the rest except the data
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unsigned Size = 0;
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Size += Header.m_NumItemTypes * sizeof(CDatafileItemType);
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Size += (Header.m_NumItems + Header.m_NumRawData) * sizeof(int);
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if(Header.m_Version == 4)
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Size += Header.m_NumRawData * sizeof(int); // v4 has uncompressed data sizes as well
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Size += Header.m_ItemSize;
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unsigned AllocSize = Size;
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AllocSize += sizeof(CDatafile); // add space for info structure
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AllocSize += Header.m_NumRawData * sizeof(void *); // add space for data pointers
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AllocSize += Header.m_NumRawData * sizeof(int); // add space for data sizes
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if(Size > (((int64_t)1) << 31) || Header.m_NumItemTypes < 0 || Header.m_NumItems < 0 || Header.m_NumRawData < 0 || Header.m_ItemSize < 0)
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{
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io_close(File);
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dbg_msg("datafile", "unable to load file, invalid file information");
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return false;
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}
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CDatafile *pTmpDataFile = (CDatafile *)malloc(AllocSize);
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pTmpDataFile->m_Header = Header;
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pTmpDataFile->m_DataStartOffset = sizeof(CDatafileHeader) + Size;
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pTmpDataFile->m_ppDataPtrs = (char **)(pTmpDataFile + 1);
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pTmpDataFile->m_pDataSizes = (int *)(pTmpDataFile->m_ppDataPtrs + Header.m_NumRawData);
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pTmpDataFile->m_pData = (char *)(pTmpDataFile->m_pDataSizes + Header.m_NumRawData);
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pTmpDataFile->m_File = File;
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pTmpDataFile->m_Sha256 = Sha256;
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pTmpDataFile->m_Crc = Crc;
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// clear the data pointers and sizes
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mem_zero(pTmpDataFile->m_ppDataPtrs, Header.m_NumRawData * sizeof(void *));
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mem_zero(pTmpDataFile->m_pDataSizes, Header.m_NumRawData * sizeof(int));
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// read types, offsets, sizes and item data
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unsigned ReadSize = io_read(File, pTmpDataFile->m_pData, Size);
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if(ReadSize != Size)
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{
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io_close(pTmpDataFile->m_File);
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free(pTmpDataFile);
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dbg_msg("datafile", "couldn't load the whole thing, wanted=%d got=%d", Size, ReadSize);
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return false;
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}
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Close();
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m_pDataFile = pTmpDataFile;
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#if defined(CONF_ARCH_ENDIAN_BIG)
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swap_endian(m_pDataFile->m_pData, sizeof(int), minimum(static_cast<unsigned>(Header.m_Swaplen), Size) / sizeof(int));
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#endif
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if(DEBUG)
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{
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dbg_msg("datafile", "allocsize=%d", AllocSize);
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dbg_msg("datafile", "readsize=%d", ReadSize);
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dbg_msg("datafile", "swaplen=%d", Header.m_Swaplen);
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dbg_msg("datafile", "item_size=%d", m_pDataFile->m_Header.m_ItemSize);
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}
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m_pDataFile->m_Info.m_pItemTypes = (CDatafileItemType *)m_pDataFile->m_pData;
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m_pDataFile->m_Info.m_pItemOffsets = (int *)&m_pDataFile->m_Info.m_pItemTypes[m_pDataFile->m_Header.m_NumItemTypes];
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m_pDataFile->m_Info.m_pDataOffsets = &m_pDataFile->m_Info.m_pItemOffsets[m_pDataFile->m_Header.m_NumItems];
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m_pDataFile->m_Info.m_pDataSizes = &m_pDataFile->m_Info.m_pDataOffsets[m_pDataFile->m_Header.m_NumRawData];
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if(Header.m_Version == 4)
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m_pDataFile->m_Info.m_pItemStart = (char *)&m_pDataFile->m_Info.m_pDataSizes[m_pDataFile->m_Header.m_NumRawData];
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else
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m_pDataFile->m_Info.m_pItemStart = (char *)&m_pDataFile->m_Info.m_pDataOffsets[m_pDataFile->m_Header.m_NumRawData];
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m_pDataFile->m_Info.m_pDataStart = m_pDataFile->m_Info.m_pItemStart + m_pDataFile->m_Header.m_ItemSize;
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log_trace("datafile", "loading done. datafile='%s'", pFilename);
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return true;
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}
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bool CDataFileReader::Close()
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{
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if(!m_pDataFile)
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return true;
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// free the data that is loaded
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for(int i = 0; i < m_pDataFile->m_Header.m_NumRawData; i++)
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{
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free(m_pDataFile->m_ppDataPtrs[i]);
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m_pDataFile->m_ppDataPtrs[i] = nullptr;
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m_pDataFile->m_pDataSizes[i] = 0;
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}
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io_close(m_pDataFile->m_File);
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free(m_pDataFile);
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m_pDataFile = nullptr;
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return true;
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}
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IOHANDLE CDataFileReader::File() const
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{
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if(!m_pDataFile)
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return 0;
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return m_pDataFile->m_File;
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}
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int CDataFileReader::NumData() const
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{
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if(!m_pDataFile)
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{
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return 0;
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}
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return m_pDataFile->m_Header.m_NumRawData;
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}
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// returns the size in the file
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int CDataFileReader::GetFileDataSize(int Index) const
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{
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if(!m_pDataFile)
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{
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return 0;
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}
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if(Index == m_pDataFile->m_Header.m_NumRawData - 1)
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return m_pDataFile->m_Header.m_DataSize - m_pDataFile->m_Info.m_pDataOffsets[Index];
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return m_pDataFile->m_Info.m_pDataOffsets[Index + 1] - m_pDataFile->m_Info.m_pDataOffsets[Index];
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}
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// returns the size of the resulting data
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int CDataFileReader::GetDataSize(int Index) const
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{
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if(!m_pDataFile || Index < 0 || Index >= m_pDataFile->m_Header.m_NumRawData)
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{
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return 0;
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}
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if(!m_pDataFile->m_ppDataPtrs[Index])
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{
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if(m_pDataFile->m_Header.m_Version >= 4)
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{
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return m_pDataFile->m_Info.m_pDataSizes[Index];
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}
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else
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{
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return GetFileDataSize(Index);
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}
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}
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const int Size = m_pDataFile->m_pDataSizes[Index];
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if(Size < 0)
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return 0; // summarize all errors as zero size
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return Size;
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}
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void *CDataFileReader::GetDataImpl(int Index, bool Swap)
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{
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if(!m_pDataFile)
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{
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return nullptr;
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}
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if(Index < 0 || Index >= m_pDataFile->m_Header.m_NumRawData)
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return nullptr;
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// load it if needed
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if(!m_pDataFile->m_ppDataPtrs[Index])
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{
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// don't try to load again if it previously failed
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if(m_pDataFile->m_pDataSizes[Index] < 0)
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return nullptr;
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// fetch the data size
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unsigned DataSize = GetFileDataSize(Index);
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#if defined(CONF_ARCH_ENDIAN_BIG)
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unsigned SwapSize = DataSize;
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#endif
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if(m_pDataFile->m_Header.m_Version == 4)
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{
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// v4 has compressed data
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const unsigned OriginalUncompressedSize = m_pDataFile->m_Info.m_pDataSizes[Index];
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unsigned long UncompressedSize = OriginalUncompressedSize;
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log_trace("datafile", "loading data. index=%d size=%u uncompressed=%u", Index, DataSize, OriginalUncompressedSize);
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// read the compressed data
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void *pCompressedData = malloc(DataSize);
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unsigned ActualDataSize = 0;
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if(io_seek(m_pDataFile->m_File, m_pDataFile->m_DataStartOffset + m_pDataFile->m_Info.m_pDataOffsets[Index], IOSEEK_START) == 0)
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ActualDataSize = io_read(m_pDataFile->m_File, pCompressedData, DataSize);
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if(DataSize != ActualDataSize)
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{
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log_error("datafile", "truncation error, could not read all data. index=%d wanted=%u got=%u", Index, DataSize, ActualDataSize);
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free(pCompressedData);
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m_pDataFile->m_ppDataPtrs[Index] = nullptr;
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m_pDataFile->m_pDataSizes[Index] = -1;
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return nullptr;
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}
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// decompress the data
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m_pDataFile->m_ppDataPtrs[Index] = (char *)malloc(UncompressedSize);
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m_pDataFile->m_pDataSizes[Index] = UncompressedSize;
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const int Result = uncompress((Bytef *)m_pDataFile->m_ppDataPtrs[Index], &UncompressedSize, (Bytef *)pCompressedData, DataSize);
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free(pCompressedData);
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if(Result != Z_OK || UncompressedSize != OriginalUncompressedSize)
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{
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log_error("datafile", "uncompress error. result=%d wanted=%u got=%lu", Result, OriginalUncompressedSize, UncompressedSize);
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free(m_pDataFile->m_ppDataPtrs[Index]);
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m_pDataFile->m_ppDataPtrs[Index] = nullptr;
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m_pDataFile->m_pDataSizes[Index] = -1;
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return nullptr;
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}
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#if defined(CONF_ARCH_ENDIAN_BIG)
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SwapSize = UncompressedSize;
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#endif
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}
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else
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{
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// load the data
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log_trace("datafile", "loading data. index=%d size=%d", Index, DataSize);
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m_pDataFile->m_ppDataPtrs[Index] = static_cast<char *>(malloc(DataSize));
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m_pDataFile->m_pDataSizes[Index] = DataSize;
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unsigned ActualDataSize = 0;
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if(io_seek(m_pDataFile->m_File, m_pDataFile->m_DataStartOffset + m_pDataFile->m_Info.m_pDataOffsets[Index], IOSEEK_START) == 0)
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ActualDataSize = io_read(m_pDataFile->m_File, m_pDataFile->m_ppDataPtrs[Index], DataSize);
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if(DataSize != ActualDataSize)
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{
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log_error("datafile", "truncation error, could not read all data. index=%d wanted=%u got=%u", Index, DataSize, ActualDataSize);
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free(m_pDataFile->m_ppDataPtrs[Index]);
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m_pDataFile->m_ppDataPtrs[Index] = nullptr;
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m_pDataFile->m_pDataSizes[Index] = -1;
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return nullptr;
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}
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}
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#if defined(CONF_ARCH_ENDIAN_BIG)
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if(Swap && SwapSize)
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swap_endian(m_pDataFile->m_ppDataPtrs[Index], sizeof(int), SwapSize / sizeof(int));
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#endif
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}
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return m_pDataFile->m_ppDataPtrs[Index];
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}
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void *CDataFileReader::GetData(int Index)
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{
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return GetDataImpl(Index, false);
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}
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void *CDataFileReader::GetDataSwapped(int Index)
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{
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return GetDataImpl(Index, true);
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}
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const char *CDataFileReader::GetDataString(int Index)
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{
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if(Index == -1)
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return "";
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const int DataSize = GetDataSize(Index);
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if(!DataSize)
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return nullptr;
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const char *pData = static_cast<char *>(GetData(Index));
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if(pData == nullptr || mem_has_null(pData, DataSize - 1) || pData[DataSize - 1] != '\0' || !str_utf8_check(pData))
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return nullptr;
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return pData;
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}
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void CDataFileReader::ReplaceData(int Index, char *pData, size_t Size)
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{
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dbg_assert(Index >= 0 && Index < m_pDataFile->m_Header.m_NumRawData, "Index invalid");
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free(m_pDataFile->m_ppDataPtrs[Index]);
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m_pDataFile->m_ppDataPtrs[Index] = pData;
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m_pDataFile->m_pDataSizes[Index] = Size;
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}
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void CDataFileReader::UnloadData(int Index)
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{
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if(Index < 0 || Index >= m_pDataFile->m_Header.m_NumRawData)
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return;
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free(m_pDataFile->m_ppDataPtrs[Index]);
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m_pDataFile->m_ppDataPtrs[Index] = nullptr;
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m_pDataFile->m_pDataSizes[Index] = 0;
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}
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int CDataFileReader::GetItemSize(int Index) const
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{
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if(!m_pDataFile)
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return 0;
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if(Index == m_pDataFile->m_Header.m_NumItems - 1)
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return m_pDataFile->m_Header.m_ItemSize - m_pDataFile->m_Info.m_pItemOffsets[Index] - sizeof(CDatafileItem);
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return m_pDataFile->m_Info.m_pItemOffsets[Index + 1] - m_pDataFile->m_Info.m_pItemOffsets[Index] - sizeof(CDatafileItem);
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}
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int CDataFileReader::GetExternalItemType(int InternalType)
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{
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if(InternalType <= OFFSET_UUID_TYPE || InternalType == ITEMTYPE_EX)
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{
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return InternalType;
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}
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|
int TypeIndex = FindItemIndex(ITEMTYPE_EX, InternalType);
|
|
if(TypeIndex < 0 || GetItemSize(TypeIndex) < (int)sizeof(CItemEx))
|
|
{
|
|
return InternalType;
|
|
}
|
|
const CItemEx *pItemEx = (const CItemEx *)GetItem(TypeIndex);
|
|
// Propagate UUID_UNKNOWN, it doesn't hurt.
|
|
return g_UuidManager.LookupUuid(pItemEx->ToUuid());
|
|
}
|
|
|
|
int CDataFileReader::GetInternalItemType(int ExternalType)
|
|
{
|
|
if(ExternalType < OFFSET_UUID)
|
|
{
|
|
return ExternalType;
|
|
}
|
|
CUuid Uuid = g_UuidManager.GetUuid(ExternalType);
|
|
int Start, Num;
|
|
GetType(ITEMTYPE_EX, &Start, &Num);
|
|
for(int i = Start; i < Start + Num; i++)
|
|
{
|
|
if(GetItemSize(i) < (int)sizeof(CItemEx))
|
|
{
|
|
continue;
|
|
}
|
|
int ID;
|
|
if(Uuid == ((const CItemEx *)GetItem(i, nullptr, &ID))->ToUuid())
|
|
{
|
|
return ID;
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
void *CDataFileReader::GetItem(int Index, int *pType, int *pID)
|
|
{
|
|
if(!m_pDataFile)
|
|
{
|
|
if(pType)
|
|
*pType = 0;
|
|
if(pID)
|
|
*pID = 0;
|
|
return nullptr;
|
|
}
|
|
|
|
CDatafileItem *pItem = (CDatafileItem *)(m_pDataFile->m_Info.m_pItemStart + m_pDataFile->m_Info.m_pItemOffsets[Index]);
|
|
if(pType)
|
|
{
|
|
// remove sign extension
|
|
*pType = GetExternalItemType((pItem->m_TypeAndID >> 16) & 0xffff);
|
|
}
|
|
if(pID)
|
|
{
|
|
*pID = pItem->m_TypeAndID & 0xffff;
|
|
}
|
|
return (void *)(pItem + 1);
|
|
}
|
|
|
|
void CDataFileReader::GetType(int Type, int *pStart, int *pNum)
|
|
{
|
|
*pStart = 0;
|
|
*pNum = 0;
|
|
|
|
if(!m_pDataFile)
|
|
return;
|
|
|
|
Type = GetInternalItemType(Type);
|
|
for(int i = 0; i < m_pDataFile->m_Header.m_NumItemTypes; i++)
|
|
{
|
|
if(m_pDataFile->m_Info.m_pItemTypes[i].m_Type == Type)
|
|
{
|
|
*pStart = m_pDataFile->m_Info.m_pItemTypes[i].m_Start;
|
|
*pNum = m_pDataFile->m_Info.m_pItemTypes[i].m_Num;
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
int CDataFileReader::FindItemIndex(int Type, int ID)
|
|
{
|
|
if(!m_pDataFile)
|
|
{
|
|
return -1;
|
|
}
|
|
|
|
int Start, Num;
|
|
GetType(Type, &Start, &Num);
|
|
for(int i = 0; i < Num; i++)
|
|
{
|
|
int ItemID;
|
|
GetItem(Start + i, nullptr, &ItemID);
|
|
if(ID == ItemID)
|
|
{
|
|
return Start + i;
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
void *CDataFileReader::FindItem(int Type, int ID)
|
|
{
|
|
int Index = FindItemIndex(Type, ID);
|
|
if(Index < 0)
|
|
{
|
|
return nullptr;
|
|
}
|
|
return GetItem(Index);
|
|
}
|
|
|
|
int CDataFileReader::NumItems() const
|
|
{
|
|
if(!m_pDataFile)
|
|
return 0;
|
|
return m_pDataFile->m_Header.m_NumItems;
|
|
}
|
|
|
|
SHA256_DIGEST CDataFileReader::Sha256() const
|
|
{
|
|
if(!m_pDataFile)
|
|
{
|
|
SHA256_DIGEST Result;
|
|
for(unsigned char &d : Result.data)
|
|
{
|
|
d = 0xff;
|
|
}
|
|
return Result;
|
|
}
|
|
return m_pDataFile->m_Sha256;
|
|
}
|
|
|
|
unsigned CDataFileReader::Crc() const
|
|
{
|
|
if(!m_pDataFile)
|
|
return 0xFFFFFFFF;
|
|
return m_pDataFile->m_Crc;
|
|
}
|
|
|
|
int CDataFileReader::MapSize() const
|
|
{
|
|
if(!m_pDataFile)
|
|
return 0;
|
|
return m_pDataFile->m_Header.m_Size + m_pDataFile->m_Header.SizeOffset();
|
|
}
|
|
|
|
CDataFileWriter::CDataFileWriter()
|
|
{
|
|
m_File = 0;
|
|
for(CItemTypeInfo &ItemTypeInfo : m_aItemTypes)
|
|
{
|
|
ItemTypeInfo.m_Num = 0;
|
|
ItemTypeInfo.m_First = -1;
|
|
ItemTypeInfo.m_Last = -1;
|
|
}
|
|
}
|
|
|
|
CDataFileWriter::~CDataFileWriter()
|
|
{
|
|
if(m_File)
|
|
{
|
|
io_close(m_File);
|
|
m_File = 0;
|
|
}
|
|
|
|
for(CItemInfo &ItemInfo : m_vItems)
|
|
{
|
|
free(ItemInfo.m_pData);
|
|
}
|
|
|
|
for(CDataInfo &DataInfo : m_vDatas)
|
|
{
|
|
free(DataInfo.m_pUncompressedData);
|
|
free(DataInfo.m_pCompressedData);
|
|
}
|
|
}
|
|
|
|
bool CDataFileWriter::Open(class IStorage *pStorage, const char *pFilename, int StorageType)
|
|
{
|
|
dbg_assert(!m_File, "File already open");
|
|
m_File = pStorage->OpenFile(pFilename, IOFLAG_WRITE, StorageType);
|
|
return m_File != 0;
|
|
}
|
|
|
|
int CDataFileWriter::GetTypeFromIndex(int Index) const
|
|
{
|
|
return ITEMTYPE_EX - Index - 1;
|
|
}
|
|
|
|
int CDataFileWriter::GetExtendedItemTypeIndex(int Type)
|
|
{
|
|
int Index = 0;
|
|
for(int ExtendedItemType : m_vExtendedItemTypes)
|
|
{
|
|
if(ExtendedItemType == Type)
|
|
return Index;
|
|
++Index;
|
|
}
|
|
|
|
// Type not found, add it.
|
|
m_vExtendedItemTypes.push_back(Type);
|
|
|
|
CItemEx ExtendedType = CItemEx::FromUuid(g_UuidManager.GetUuid(Type));
|
|
AddItem(ITEMTYPE_EX, GetTypeFromIndex(Index), sizeof(ExtendedType), &ExtendedType);
|
|
return Index;
|
|
}
|
|
|
|
int CDataFileWriter::AddItem(int Type, int ID, size_t Size, const void *pData)
|
|
{
|
|
dbg_assert((Type >= 0 && Type < MAX_ITEM_TYPES) || Type >= OFFSET_UUID, "Invalid type");
|
|
dbg_assert(ID >= 0 && ID <= ITEMTYPE_EX, "Invalid ID");
|
|
dbg_assert(Size == 0 || pData != nullptr, "Data missing"); // Items without data are allowed
|
|
dbg_assert(Size <= (size_t)std::numeric_limits<int>::max(), "Data too large");
|
|
dbg_assert(Size % sizeof(int) == 0, "Invalid data boundary");
|
|
|
|
if(Type >= OFFSET_UUID)
|
|
{
|
|
Type = GetTypeFromIndex(GetExtendedItemTypeIndex(Type));
|
|
}
|
|
|
|
const int NumItems = m_vItems.size();
|
|
m_vItems.emplace_back();
|
|
CItemInfo &Info = m_vItems.back();
|
|
Info.m_Type = Type;
|
|
Info.m_ID = ID;
|
|
Info.m_Size = Size;
|
|
|
|
// copy data
|
|
if(Size > 0)
|
|
{
|
|
Info.m_pData = malloc(Size);
|
|
mem_copy(Info.m_pData, pData, Size);
|
|
}
|
|
else
|
|
Info.m_pData = nullptr;
|
|
|
|
// link
|
|
Info.m_Prev = m_aItemTypes[Type].m_Last;
|
|
Info.m_Next = -1;
|
|
|
|
if(m_aItemTypes[Type].m_Last != -1)
|
|
m_vItems[m_aItemTypes[Type].m_Last].m_Next = NumItems;
|
|
m_aItemTypes[Type].m_Last = NumItems;
|
|
|
|
if(m_aItemTypes[Type].m_First == -1)
|
|
m_aItemTypes[Type].m_First = NumItems;
|
|
|
|
m_aItemTypes[Type].m_Num++;
|
|
return NumItems;
|
|
}
|
|
|
|
int CDataFileWriter::AddData(size_t Size, const void *pData, int CompressionLevel)
|
|
{
|
|
dbg_assert(Size > 0 && pData != nullptr, "Data missing");
|
|
dbg_assert(Size <= (size_t)std::numeric_limits<int>::max(), "Data too large");
|
|
|
|
m_vDatas.emplace_back();
|
|
CDataInfo &Info = m_vDatas.back();
|
|
Info.m_pUncompressedData = malloc(Size);
|
|
mem_copy(Info.m_pUncompressedData, pData, Size);
|
|
Info.m_UncompressedSize = Size;
|
|
Info.m_pCompressedData = nullptr;
|
|
Info.m_CompressedSize = 0;
|
|
Info.m_CompressionLevel = CompressionLevel;
|
|
|
|
return m_vDatas.size() - 1;
|
|
}
|
|
|
|
int CDataFileWriter::AddDataSwapped(size_t Size, const void *pData)
|
|
{
|
|
dbg_assert(Size > 0 && pData != nullptr, "Data missing");
|
|
dbg_assert(Size <= (size_t)std::numeric_limits<int>::max(), "Data too large");
|
|
dbg_assert(Size % sizeof(int) == 0, "Invalid data boundary");
|
|
|
|
#if defined(CONF_ARCH_ENDIAN_BIG)
|
|
void *pSwapped = malloc(Size); // temporary buffer that we use during compression
|
|
mem_copy(pSwapped, pData, Size);
|
|
swap_endian(pSwapped, sizeof(int), Size / sizeof(int));
|
|
int Index = AddData(Size, pSwapped);
|
|
free(pSwapped);
|
|
return Index;
|
|
#else
|
|
return AddData(Size, pData);
|
|
#endif
|
|
}
|
|
|
|
int CDataFileWriter::AddDataString(const char *pStr)
|
|
{
|
|
dbg_assert(pStr != nullptr, "Data missing");
|
|
|
|
if(pStr[0] == '\0')
|
|
return -1;
|
|
return AddData(str_length(pStr) + 1, pStr);
|
|
}
|
|
|
|
void CDataFileWriter::Finish()
|
|
{
|
|
dbg_assert((bool)m_File, "File not open");
|
|
|
|
// Compress data. This takes the majority of the time when saving a datafile,
|
|
// so it's delayed until the end so it can be off-loaded to another thread.
|
|
for(CDataInfo &DataInfo : m_vDatas)
|
|
{
|
|
unsigned long CompressedSize = compressBound(DataInfo.m_UncompressedSize);
|
|
DataInfo.m_pCompressedData = malloc(CompressedSize);
|
|
const int Result = compress2((Bytef *)DataInfo.m_pCompressedData, &CompressedSize, (Bytef *)DataInfo.m_pUncompressedData, DataInfo.m_UncompressedSize, DataInfo.m_CompressionLevel);
|
|
DataInfo.m_CompressedSize = CompressedSize;
|
|
free(DataInfo.m_pUncompressedData);
|
|
DataInfo.m_pUncompressedData = nullptr;
|
|
if(Result != Z_OK)
|
|
{
|
|
char aError[32];
|
|
str_format(aError, sizeof(aError), "zlib compression error %d", Result);
|
|
dbg_assert(false, aError);
|
|
}
|
|
}
|
|
|
|
// Calculate total size of items
|
|
size_t ItemSize = 0;
|
|
for(const CItemInfo &ItemInfo : m_vItems)
|
|
{
|
|
ItemSize += ItemInfo.m_Size;
|
|
ItemSize += sizeof(CDatafileItem);
|
|
}
|
|
|
|
// Calculate total size of data
|
|
size_t DataSize = 0;
|
|
for(const CDataInfo &DataInfo : m_vDatas)
|
|
DataSize += DataInfo.m_CompressedSize;
|
|
|
|
// Count number of item types
|
|
int NumItemTypes = 0;
|
|
for(const CItemTypeInfo &ItemType : m_aItemTypes)
|
|
{
|
|
if(ItemType.m_Num > 0)
|
|
++NumItemTypes;
|
|
}
|
|
|
|
// Calculate complete file size
|
|
const size_t TypesSize = NumItemTypes * sizeof(CDatafileItemType);
|
|
const size_t HeaderSize = sizeof(CDatafileHeader);
|
|
const size_t OffsetSize = (m_vItems.size() + m_vDatas.size() * 2) * sizeof(int); // ItemOffsets, DataOffsets, DataUncompressedSizes
|
|
const size_t SwapSize = HeaderSize + TypesSize + OffsetSize + ItemSize;
|
|
const size_t FileSize = SwapSize + DataSize;
|
|
|
|
if(DEBUG)
|
|
dbg_msg("datafile", "NumItemTypes=%d TypesSize=%" PRIzu " ItemSize=%" PRIzu " DataSize=%" PRIzu, NumItemTypes, TypesSize, ItemSize, DataSize);
|
|
|
|
// This also ensures that SwapSize, ItemSize and DataSize are valid.
|
|
dbg_assert(FileSize <= (size_t)std::numeric_limits<int>::max(), "File size too large");
|
|
|
|
// Construct and write header
|
|
{
|
|
CDatafileHeader Header;
|
|
Header.m_aID[0] = 'D';
|
|
Header.m_aID[1] = 'A';
|
|
Header.m_aID[2] = 'T';
|
|
Header.m_aID[3] = 'A';
|
|
Header.m_Version = 4;
|
|
Header.m_Size = FileSize - Header.SizeOffset();
|
|
Header.m_Swaplen = SwapSize - Header.SizeOffset();
|
|
Header.m_NumItemTypes = NumItemTypes;
|
|
Header.m_NumItems = m_vItems.size();
|
|
Header.m_NumRawData = m_vDatas.size();
|
|
Header.m_ItemSize = ItemSize;
|
|
Header.m_DataSize = DataSize;
|
|
|
|
#if defined(CONF_ARCH_ENDIAN_BIG)
|
|
swap_endian(&Header, sizeof(int), sizeof(Header) / sizeof(int));
|
|
#endif
|
|
io_write(m_File, &Header, sizeof(Header));
|
|
}
|
|
|
|
// Write item types
|
|
for(int Type = 0, Count = 0; Type < (int)m_aItemTypes.size(); ++Type)
|
|
{
|
|
if(!m_aItemTypes[Type].m_Num)
|
|
continue;
|
|
|
|
CDatafileItemType Info;
|
|
Info.m_Type = Type;
|
|
Info.m_Start = Count;
|
|
Info.m_Num = m_aItemTypes[Type].m_Num;
|
|
|
|
if(DEBUG)
|
|
dbg_msg("datafile", "writing item type. Type=%x Start=%d Num=%d", Info.m_Type, Info.m_Start, Info.m_Num);
|
|
|
|
#if defined(CONF_ARCH_ENDIAN_BIG)
|
|
swap_endian(&Info, sizeof(int), sizeof(CDatafileItemType) / sizeof(int));
|
|
#endif
|
|
io_write(m_File, &Info, sizeof(Info));
|
|
Count += m_aItemTypes[Type].m_Num;
|
|
}
|
|
|
|
// Write item offsets sorted by type
|
|
for(int Type = 0, Offset = 0; Type < (int)m_aItemTypes.size(); Type++)
|
|
{
|
|
// Write all items offsets of this type
|
|
for(int ItemIndex = m_aItemTypes[Type].m_First; ItemIndex != -1; ItemIndex = m_vItems[ItemIndex].m_Next)
|
|
{
|
|
if(DEBUG)
|
|
dbg_msg("datafile", "writing item offset. Type=%d ItemIndex=%d Offset=%d", Type, ItemIndex, Offset);
|
|
|
|
int Temp = Offset;
|
|
#if defined(CONF_ARCH_ENDIAN_BIG)
|
|
swap_endian(&Temp, sizeof(int), sizeof(Temp) / sizeof(int));
|
|
#endif
|
|
io_write(m_File, &Temp, sizeof(Temp));
|
|
Offset += m_vItems[ItemIndex].m_Size + sizeof(CDatafileItem);
|
|
}
|
|
}
|
|
|
|
// Write data offsets
|
|
int Offset = 0, DataIndex = 0;
|
|
for(const CDataInfo &DataInfo : m_vDatas)
|
|
{
|
|
if(DEBUG)
|
|
dbg_msg("datafile", "writing data offset. DataIndex=%d Offset=%d", DataIndex, Offset);
|
|
|
|
int Temp = Offset;
|
|
#if defined(CONF_ARCH_ENDIAN_BIG)
|
|
swap_endian(&Temp, sizeof(int), sizeof(Temp) / sizeof(int));
|
|
#endif
|
|
io_write(m_File, &Temp, sizeof(Temp));
|
|
Offset += DataInfo.m_CompressedSize;
|
|
++DataIndex;
|
|
}
|
|
|
|
// Write data uncompressed sizes
|
|
DataIndex = 0;
|
|
for(const CDataInfo &DataInfo : m_vDatas)
|
|
{
|
|
if(DEBUG)
|
|
dbg_msg("datafile", "writing data uncompressed size. DataIndex=%d UncompressedSize=%d", DataIndex, DataInfo.m_UncompressedSize);
|
|
|
|
int UncompressedSize = DataInfo.m_UncompressedSize;
|
|
#if defined(CONF_ARCH_ENDIAN_BIG)
|
|
swap_endian(&UncompressedSize, sizeof(int), sizeof(UncompressedSize) / sizeof(int));
|
|
#endif
|
|
io_write(m_File, &UncompressedSize, sizeof(UncompressedSize));
|
|
++DataIndex;
|
|
}
|
|
|
|
// Write items sorted by type
|
|
for(int Type = 0; Type < (int)m_aItemTypes.size(); ++Type)
|
|
{
|
|
// Write all items of this type
|
|
for(int ItemIndex = m_aItemTypes[Type].m_First; ItemIndex != -1; ItemIndex = m_vItems[ItemIndex].m_Next)
|
|
{
|
|
CDatafileItem Item;
|
|
Item.m_TypeAndID = (Type << 16) | m_vItems[ItemIndex].m_ID;
|
|
Item.m_Size = m_vItems[ItemIndex].m_Size;
|
|
|
|
if(DEBUG)
|
|
dbg_msg("datafile", "writing item. Type=%x ItemIndex=%d ID=%d Size=%d", Type, ItemIndex, m_vItems[ItemIndex].m_ID, m_vItems[ItemIndex].m_Size);
|
|
|
|
#if defined(CONF_ARCH_ENDIAN_BIG)
|
|
swap_endian(&Item, sizeof(int), sizeof(Item) / sizeof(int));
|
|
if(m_vItems[ItemIndex].m_pData != nullptr)
|
|
swap_endian(m_vItems[ItemIndex].m_pData, sizeof(int), m_vItems[ItemIndex].m_Size / sizeof(int));
|
|
#endif
|
|
io_write(m_File, &Item, sizeof(Item));
|
|
if(m_vItems[ItemIndex].m_pData != nullptr)
|
|
{
|
|
io_write(m_File, m_vItems[ItemIndex].m_pData, m_vItems[ItemIndex].m_Size);
|
|
free(m_vItems[ItemIndex].m_pData);
|
|
m_vItems[ItemIndex].m_pData = nullptr;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Write data
|
|
DataIndex = 0;
|
|
for(CDataInfo &DataInfo : m_vDatas)
|
|
{
|
|
if(DEBUG)
|
|
dbg_msg("datafile", "writing data. DataIndex=%d CompressedSize=%d", DataIndex, DataInfo.m_CompressedSize);
|
|
|
|
io_write(m_File, DataInfo.m_pCompressedData, DataInfo.m_CompressedSize);
|
|
free(DataInfo.m_pCompressedData);
|
|
DataInfo.m_pCompressedData = nullptr;
|
|
++DataIndex;
|
|
}
|
|
|
|
io_close(m_File);
|
|
m_File = 0;
|
|
}
|