2 |
* * |
* * |
3 |
* libgig - C++ cross-platform Gigasampler format file access library * |
* libgig - C++ cross-platform Gigasampler format file access library * |
4 |
* * |
* * |
5 |
* Copyright (C) 2003-2009 by Christian Schoenebeck * |
* Copyright (C) 2003-2014 by Christian Schoenebeck * |
6 |
* <cuse@users.sourceforge.net> * |
* <cuse@users.sourceforge.net> * |
7 |
* * |
* * |
8 |
* This library is free software; you can redistribute it and/or modify * |
* This library is free software; you can redistribute it and/or modify * |
22 |
***************************************************************************/ |
***************************************************************************/ |
23 |
|
|
24 |
#include <algorithm> |
#include <algorithm> |
25 |
|
#include <set> |
26 |
#include <string.h> |
#include <string.h> |
27 |
|
|
28 |
#include "RIFF.h" |
#include "RIFF.h" |
60 |
ulPos = 0; |
ulPos = 0; |
61 |
pParent = NULL; |
pParent = NULL; |
62 |
pChunkData = NULL; |
pChunkData = NULL; |
63 |
|
CurrentChunkSize = 0; |
64 |
|
NewChunkSize = 0; |
65 |
ulChunkDataSize = 0; |
ulChunkDataSize = 0; |
66 |
ChunkID = CHUNK_ID_RIFF; |
ChunkID = CHUNK_ID_RIFF; |
67 |
this->pFile = pFile; |
this->pFile = pFile; |
76 |
pParent = Parent; |
pParent = Parent; |
77 |
ulPos = 0; |
ulPos = 0; |
78 |
pChunkData = NULL; |
pChunkData = NULL; |
79 |
|
CurrentChunkSize = 0; |
80 |
|
NewChunkSize = 0; |
81 |
ulChunkDataSize = 0; |
ulChunkDataSize = 0; |
82 |
ReadHeader(StartPos); |
ReadHeader(StartPos); |
83 |
} |
} |
88 |
this->pParent = pParent; |
this->pParent = pParent; |
89 |
ulPos = 0; |
ulPos = 0; |
90 |
pChunkData = NULL; |
pChunkData = NULL; |
|
ulChunkDataSize = 0; |
|
91 |
ChunkID = uiChunkID; |
ChunkID = uiChunkID; |
92 |
|
ulChunkDataSize = 0; |
93 |
CurrentChunkSize = 0; |
CurrentChunkSize = 0; |
94 |
NewChunkSize = uiBodySize; |
NewChunkSize = uiBodySize; |
95 |
} |
} |
96 |
|
|
97 |
Chunk::~Chunk() { |
Chunk::~Chunk() { |
98 |
pFile->UnlogResized(this); |
if (pFile) pFile->UnlogResized(this); |
99 |
if (pChunkData) delete[] pChunkData; |
if (pChunkData) delete[] pChunkData; |
100 |
} |
} |
101 |
|
|
103 |
#if DEBUG |
#if DEBUG |
104 |
std::cout << "Chunk::Readheader(" << fPos << ") "; |
std::cout << "Chunk::Readheader(" << fPos << ") "; |
105 |
#endif // DEBUG |
#endif // DEBUG |
106 |
|
ChunkID = 0; |
107 |
|
NewChunkSize = CurrentChunkSize = 0; |
108 |
#if POSIX |
#if POSIX |
109 |
if (lseek(pFile->hFileRead, fPos, SEEK_SET) != -1) { |
if (lseek(pFile->hFileRead, fPos, SEEK_SET) != -1) { |
110 |
read(pFile->hFileRead, &ChunkID, 4); |
read(pFile->hFileRead, &ChunkID, 4); |
135 |
} |
} |
136 |
#if DEBUG |
#if DEBUG |
137 |
std::cout << "ckID=" << convertToString(ChunkID) << " "; |
std::cout << "ckID=" << convertToString(ChunkID) << " "; |
138 |
std::cout << "ckSize=" << ChunkSize << " "; |
std::cout << "ckSize=" << CurrentChunkSize << " "; |
139 |
std::cout << "bEndianNative=" << bEndianNative << std::endl; |
std::cout << "bEndianNative=" << pFile->bEndianNative << std::endl; |
140 |
#endif // DEBUG |
#endif // DEBUG |
141 |
NewChunkSize = CurrentChunkSize; |
NewChunkSize = CurrentChunkSize; |
142 |
} |
} |
232 |
#if DEBUG |
#if DEBUG |
233 |
std::cout << "Chunk::Remainingbytes()=" << CurrentChunkSize - ulPos << std::endl; |
std::cout << "Chunk::Remainingbytes()=" << CurrentChunkSize - ulPos << std::endl; |
234 |
#endif // DEBUG |
#endif // DEBUG |
235 |
return CurrentChunkSize - ulPos; |
return (CurrentChunkSize > ulPos) ? CurrentChunkSize - ulPos : 0; |
236 |
} |
} |
237 |
|
|
238 |
/** |
/** |
281 |
#if DEBUG |
#if DEBUG |
282 |
std::cout << "Chunk::Read(void*,ulong,ulong)" << std::endl; |
std::cout << "Chunk::Read(void*,ulong,ulong)" << std::endl; |
283 |
#endif // DEBUG |
#endif // DEBUG |
284 |
if (ulStartPos == 0) return 0; // is only 0 if this is a new chunk, so nothing to read (yet) |
//if (ulStartPos == 0) return 0; // is only 0 if this is a new chunk, so nothing to read (yet) |
285 |
if (ulPos >= CurrentChunkSize) return 0; |
if (ulPos >= CurrentChunkSize) return 0; |
286 |
if (ulPos + WordCount * WordSize >= CurrentChunkSize) WordCount = (CurrentChunkSize - ulPos) / WordSize; |
if (ulPos + WordCount * WordSize >= CurrentChunkSize) WordCount = (CurrentChunkSize - ulPos) / WordSize; |
287 |
#if POSIX |
#if POSIX |
595 |
} |
} |
596 |
|
|
597 |
/** |
/** |
598 |
|
* Reads a null-padded string of size characters and copies it |
599 |
|
* into the string \a s. The position within the chunk will |
600 |
|
* automatically be incremented. |
601 |
|
* |
602 |
|
* @param s destination string |
603 |
|
* @param size number of characters to read |
604 |
|
* @throws RIFF::Exception if an error occured or less than |
605 |
|
* \a size characters could be read! |
606 |
|
*/ |
607 |
|
void Chunk::ReadString(String& s, int size) { |
608 |
|
char* buf = new char[size]; |
609 |
|
ReadSceptical(buf, 1, size); |
610 |
|
s.assign(buf, std::find(buf, buf + size, '\0')); |
611 |
|
delete[] buf; |
612 |
|
} |
613 |
|
|
614 |
|
/** |
615 |
* Writes \a WordCount number of 32 Bit unsigned integer words from the |
* Writes \a WordCount number of 32 Bit unsigned integer words from the |
616 |
* buffer pointed by \a pData to the chunk's body, directly to the |
* buffer pointed by \a pData to the chunk's body, directly to the |
617 |
* actual "physical" file. The position within the chunk will |
* actual "physical" file. The position within the chunk will |
751 |
* @see ReleaseChunkData() |
* @see ReleaseChunkData() |
752 |
*/ |
*/ |
753 |
void* Chunk::LoadChunkData() { |
void* Chunk::LoadChunkData() { |
754 |
if (!pChunkData && pFile->Filename != "" && ulStartPos != 0) { |
if (!pChunkData && pFile->Filename != "" /*&& ulStartPos != 0*/) { |
755 |
#if POSIX |
#if POSIX |
756 |
if (lseek(pFile->hFileRead, ulStartPos, SEEK_SET) == -1) return NULL; |
if (lseek(pFile->hFileRead, ulStartPos, SEEK_SET) == -1) return NULL; |
757 |
#elif defined(WIN32) |
#elif defined(WIN32) |
878 |
#else |
#else |
879 |
int iBytesMoved = 1; |
int iBytesMoved = 1; |
880 |
#endif |
#endif |
881 |
for (unsigned long ulOffset = 0; iBytesMoved > 0; ulOffset += iBytesMoved, ulToMove -= iBytesMoved) { |
for (unsigned long ulOffset = 0; ulToMove > 0 && iBytesMoved > 0; ulOffset += iBytesMoved, ulToMove -= iBytesMoved) { |
882 |
iBytesMoved = (ulToMove < 4096) ? ulToMove : 4096; |
iBytesMoved = (ulToMove < 4096) ? ulToMove : 4096; |
883 |
#if POSIX |
#if POSIX |
884 |
lseek(pFile->hFileRead, ulStartPos + ulCurrentDataOffset + ulOffset, SEEK_SET); |
lseek(pFile->hFileRead, ulStartPos + ulCurrentDataOffset + ulOffset, SEEK_SET); |
968 |
#if DEBUG |
#if DEBUG |
969 |
std::cout << "List::~List()" << std::endl; |
std::cout << "List::~List()" << std::endl; |
970 |
#endif // DEBUG |
#endif // DEBUG |
971 |
|
DeleteChunkList(); |
972 |
|
} |
973 |
|
|
974 |
|
void List::DeleteChunkList() { |
975 |
if (pSubChunks) { |
if (pSubChunks) { |
976 |
ChunkList::iterator iter = pSubChunks->begin(); |
ChunkList::iterator iter = pSubChunks->begin(); |
977 |
ChunkList::iterator end = pSubChunks->end(); |
ChunkList::iterator end = pSubChunks->end(); |
980 |
iter++; |
iter++; |
981 |
} |
} |
982 |
delete pSubChunks; |
delete pSubChunks; |
983 |
|
pSubChunks = NULL; |
984 |
|
} |
985 |
|
if (pSubChunksMap) { |
986 |
|
delete pSubChunksMap; |
987 |
|
pSubChunksMap = NULL; |
988 |
} |
} |
|
if (pSubChunksMap) delete pSubChunksMap; |
|
989 |
} |
} |
990 |
|
|
991 |
/** |
/** |
1191 |
return pNewChunk; |
return pNewChunk; |
1192 |
} |
} |
1193 |
|
|
1194 |
/** @brief Moves a sub chunk. |
/** @brief Moves a sub chunk witin this list. |
1195 |
* |
* |
1196 |
* Moves a sub chunk from one position in a list to another |
* Moves a sub chunk from one position in this list to another |
1197 |
* position in the same list. The pSrc chunk is placed before the |
* position in the same list. The pSrc chunk is placed before the |
1198 |
* pDst chunk. |
* pDst chunk. |
1199 |
* |
* |
1209 |
pSubChunks->insert(iter, pSrc); |
pSubChunks->insert(iter, pSrc); |
1210 |
} |
} |
1211 |
|
|
1212 |
|
/** @brief Moves a sub chunk from this list to another list. |
1213 |
|
* |
1214 |
|
* Moves a sub chunk from this list list to the end of another |
1215 |
|
* list. |
1216 |
|
* |
1217 |
|
* @param pSrc - sub chunk to be moved |
1218 |
|
* @param pDst - destination list where the chunk shall be moved to |
1219 |
|
*/ |
1220 |
|
void List::MoveSubChunk(Chunk* pSrc, List* pNewParent) { |
1221 |
|
if (pNewParent == this || !pNewParent) return; |
1222 |
|
if (!pSubChunks) LoadSubChunks(); |
1223 |
|
if (!pNewParent->pSubChunks) pNewParent->LoadSubChunks(); |
1224 |
|
pSubChunks->remove(pSrc); |
1225 |
|
pNewParent->pSubChunks->push_back(pSrc); |
1226 |
|
// update chunk id map of this List |
1227 |
|
if ((*pSubChunksMap)[pSrc->GetChunkID()] == pSrc) { |
1228 |
|
pSubChunksMap->erase(pSrc->GetChunkID()); |
1229 |
|
// try to find another chunk of the same chunk ID |
1230 |
|
ChunkList::iterator iter = pSubChunks->begin(); |
1231 |
|
ChunkList::iterator end = pSubChunks->end(); |
1232 |
|
for (; iter != end; ++iter) { |
1233 |
|
if ((*iter)->GetChunkID() == pSrc->GetChunkID()) { |
1234 |
|
(*pSubChunksMap)[pSrc->GetChunkID()] = *iter; |
1235 |
|
break; // we're done, stop search |
1236 |
|
} |
1237 |
|
} |
1238 |
|
} |
1239 |
|
// update chunk id map of other list |
1240 |
|
if (!(*pNewParent->pSubChunksMap)[pSrc->GetChunkID()]) |
1241 |
|
(*pNewParent->pSubChunksMap)[pSrc->GetChunkID()] = pSrc; |
1242 |
|
} |
1243 |
|
|
1244 |
/** @brief Creates a new list sub chunk. |
/** @brief Creates a new list sub chunk. |
1245 |
* |
* |
1246 |
* Creates and adds a new list sub chunk to this list chunk. Note that |
* Creates and adds a new list sub chunk to this list chunk. Note that |
1293 |
std::cout << "List::Readheader(ulong) "; |
std::cout << "List::Readheader(ulong) "; |
1294 |
#endif // DEBUG |
#endif // DEBUG |
1295 |
Chunk::ReadHeader(fPos); |
Chunk::ReadHeader(fPos); |
1296 |
|
if (CurrentChunkSize < 4) return; |
1297 |
NewChunkSize = CurrentChunkSize -= 4; |
NewChunkSize = CurrentChunkSize -= 4; |
1298 |
#if POSIX |
#if POSIX |
1299 |
lseek(pFile->hFileRead, fPos + CHUNK_HEADER_SIZE, SEEK_SET); |
lseek(pFile->hFileRead, fPos + CHUNK_HEADER_SIZE, SEEK_SET); |
1433 |
// *************** File *************** |
// *************** File *************** |
1434 |
// * |
// * |
1435 |
|
|
1436 |
|
//HACK: to avoid breaking DLL compatibility to older versions of libgig we roll the new std::set<Chunk*> into the old std::list<Chunk*> container, should be replaced on member variable level soon though |
1437 |
|
#define _GET_RESIZED_CHUNKS() \ |
1438 |
|
(reinterpret_cast<std::set<Chunk*>*>(ResizedChunks.front())) |
1439 |
|
|
1440 |
/** @brief Create new RIFF file. |
/** @brief Create new RIFF file. |
1441 |
* |
* |
1442 |
* Use this constructor if you want to create a new RIFF file completely |
* Use this constructor if you want to create a new RIFF file completely |
1451 |
* @param FileType - four-byte identifier of the RIFF file type |
* @param FileType - four-byte identifier of the RIFF file type |
1452 |
* @see AddSubChunk(), AddSubList(), SetByteOrder() |
* @see AddSubChunk(), AddSubList(), SetByteOrder() |
1453 |
*/ |
*/ |
1454 |
File::File(uint32_t FileType) : List(this) { |
File::File(uint32_t FileType) |
1455 |
|
: List(this), bIsNewFile(true), Layout(layout_standard) |
1456 |
|
{ |
1457 |
|
//HACK: see _GET_RESIZED_CHUNKS() comment |
1458 |
|
ResizedChunks.push_back(reinterpret_cast<Chunk*>(new std::set<Chunk*>)); |
1459 |
#if defined(WIN32) |
#if defined(WIN32) |
1460 |
hFileRead = hFileWrite = INVALID_HANDLE_VALUE; |
hFileRead = hFileWrite = INVALID_HANDLE_VALUE; |
1461 |
#else |
#else |
1475 |
* @throws RIFF::Exception if error occured while trying to load the |
* @throws RIFF::Exception if error occured while trying to load the |
1476 |
* given RIFF file |
* given RIFF file |
1477 |
*/ |
*/ |
1478 |
File::File(const String& path) : List(this), Filename(path) { |
File::File(const String& path) |
1479 |
#if DEBUG |
: List(this), Filename(path), bIsNewFile(false), Layout(layout_standard) |
1480 |
std::cout << "File::File("<<path<<")" << std::endl; |
{ |
1481 |
#endif // DEBUG |
#if DEBUG |
1482 |
|
std::cout << "File::File("<<path<<")" << std::endl; |
1483 |
|
#endif // DEBUG |
1484 |
bEndianNative = true; |
bEndianNative = true; |
1485 |
|
try { |
1486 |
|
__openExistingFile(path); |
1487 |
|
if (ChunkID != CHUNK_ID_RIFF && ChunkID != CHUNK_ID_RIFX) { |
1488 |
|
throw RIFF::Exception("Not a RIFF file"); |
1489 |
|
} |
1490 |
|
} |
1491 |
|
catch (...) { |
1492 |
|
Cleanup(); |
1493 |
|
throw; |
1494 |
|
} |
1495 |
|
} |
1496 |
|
|
1497 |
|
/** @brief Load existing RIFF-like file. |
1498 |
|
* |
1499 |
|
* Loads an existing file, which is not a "real" RIFF file, but similar to |
1500 |
|
* an ordinary RIFF file. |
1501 |
|
* |
1502 |
|
* A "real" RIFF file contains at top level a List chunk either with chunk |
1503 |
|
* ID "RIFF" or "RIFX". The simple constructor above expects this to be |
1504 |
|
* case, and if it finds the toplevel List chunk to have another chunk ID |
1505 |
|
* than one of those two expected ones, it would throw an Exception and |
1506 |
|
* would refuse to load the file accordingly. |
1507 |
|
* |
1508 |
|
* Since there are however a lot of file formats which use the same simple |
1509 |
|
* principles of the RIFF format, with another toplevel List chunk ID |
1510 |
|
* though, you can use this alternative constructor here to be able to load |
1511 |
|
* and handle those files in the same way as you would do with "real" RIFF |
1512 |
|
* files. |
1513 |
|
* |
1514 |
|
* @param path - path and file name of the RIFF-alike file to be opened |
1515 |
|
* @param FileType - expected toplevel List chunk ID (this is the very |
1516 |
|
* first chunk found in the file) |
1517 |
|
* @param Endian - whether the file uses little endian or big endian layout |
1518 |
|
* @param layout - general file structure type |
1519 |
|
* @throws RIFF::Exception if error occured while trying to load the |
1520 |
|
* given RIFF-alike file |
1521 |
|
*/ |
1522 |
|
File::File(const String& path, uint32_t FileType, endian_t Endian, layout_t layout) |
1523 |
|
: List(this), Filename(path), bIsNewFile(false), Layout(layout) |
1524 |
|
{ |
1525 |
|
SetByteOrder(Endian); |
1526 |
|
try { |
1527 |
|
__openExistingFile(path, &FileType); |
1528 |
|
} |
1529 |
|
catch (...) { |
1530 |
|
Cleanup(); |
1531 |
|
throw; |
1532 |
|
} |
1533 |
|
} |
1534 |
|
|
1535 |
|
/** |
1536 |
|
* Opens an already existing RIFF file or RIFF-alike file. This method |
1537 |
|
* shall only be called once (in a File class constructor). |
1538 |
|
* |
1539 |
|
* @param path - path and file name of the RIFF file or RIFF-alike file to |
1540 |
|
* be opened |
1541 |
|
* @param FileType - (optional) expected chunk ID of first chunk in file |
1542 |
|
* @throws RIFF::Exception if error occured while trying to load the |
1543 |
|
* given RIFF file or RIFF-alike file |
1544 |
|
*/ |
1545 |
|
void File::__openExistingFile(const String& path, uint32_t* FileType) { |
1546 |
|
//HACK: see _GET_RESIZED_CHUNKS() comment |
1547 |
|
ResizedChunks.push_back(reinterpret_cast<Chunk*>(new std::set<Chunk*>)); |
1548 |
#if POSIX |
#if POSIX |
1549 |
hFileRead = hFileWrite = open(path.c_str(), O_RDONLY | O_NONBLOCK); |
hFileRead = hFileWrite = open(path.c_str(), O_RDONLY | O_NONBLOCK); |
1550 |
if (hFileRead <= 0) { |
if (hFileRead <= 0) { |
1568 |
if (!hFileRead) throw RIFF::Exception("Can't open \"" + path + "\""); |
if (!hFileRead) throw RIFF::Exception("Can't open \"" + path + "\""); |
1569 |
#endif // POSIX |
#endif // POSIX |
1570 |
Mode = stream_mode_read; |
Mode = stream_mode_read; |
1571 |
ulStartPos = RIFF_HEADER_SIZE; |
switch (Layout) { |
1572 |
ReadHeader(0); |
case layout_standard: // this is a normal RIFF file |
1573 |
if (ChunkID != CHUNK_ID_RIFF) { |
ulStartPos = RIFF_HEADER_SIZE; |
1574 |
throw RIFF::Exception("Not a RIFF file"); |
ReadHeader(0); |
1575 |
|
if (FileType && ChunkID != *FileType) |
1576 |
|
throw RIFF::Exception("Invalid file container ID"); |
1577 |
|
break; |
1578 |
|
case layout_flat: // non-standard RIFF-alike file |
1579 |
|
ulStartPos = 0; |
1580 |
|
NewChunkSize = CurrentChunkSize = GetFileSize(); |
1581 |
|
if (FileType) { |
1582 |
|
uint32_t ckid; |
1583 |
|
if (Read(&ckid, 4, 1) != 4) { |
1584 |
|
throw RIFF::Exception("Invalid file header ID (premature end of header)"); |
1585 |
|
} else if (ckid != *FileType) { |
1586 |
|
String s = " (expected '" + convertToString(*FileType) + "' but got '" + convertToString(ckid) + "')"; |
1587 |
|
throw RIFF::Exception("Invalid file header ID" + s); |
1588 |
|
} |
1589 |
|
SetPos(0); // reset to first byte of file |
1590 |
|
} |
1591 |
|
LoadSubChunks(); |
1592 |
|
break; |
1593 |
} |
} |
1594 |
} |
} |
1595 |
|
|
1596 |
String File::GetFileName() { |
String File::GetFileName() { |
1597 |
return Filename; |
return Filename; |
1598 |
} |
} |
1599 |
|
|
1600 |
|
void File::SetFileName(const String& path) { |
1601 |
|
Filename = path; |
1602 |
|
} |
1603 |
|
|
1604 |
stream_mode_t File::GetMode() { |
stream_mode_t File::GetMode() { |
1605 |
return Mode; |
return Mode; |
1606 |
} |
} |
1607 |
|
|
1608 |
|
layout_t File::GetLayout() const { |
1609 |
|
return Layout; |
1610 |
|
} |
1611 |
|
|
1612 |
/** @brief Change file access mode. |
/** @brief Change file access mode. |
1613 |
* |
* |
1614 |
* Changes files access mode either to read-only mode or to read/write |
* Changes files access mode either to read-only mode or to read/write |
1741 |
* chunk or any kind of IO error occured |
* chunk or any kind of IO error occured |
1742 |
*/ |
*/ |
1743 |
void File::Save() { |
void File::Save() { |
1744 |
|
//TODO: implementation for the case where first chunk is not a global container (List chunk) is not implemented yet (i.e. Korg files) |
1745 |
|
if (Layout == layout_flat) |
1746 |
|
throw Exception("Saving a RIFF file with layout_flat is not implemented yet"); |
1747 |
|
|
1748 |
// make sure the RIFF tree is built (from the original file) |
// make sure the RIFF tree is built (from the original file) |
1749 |
LoadSubChunksRecursively(); |
LoadSubChunksRecursively(); |
1750 |
|
|
1760 |
|
|
1761 |
// first we sum up all positive chunk size changes (and skip all negative ones) |
// first we sum up all positive chunk size changes (and skip all negative ones) |
1762 |
unsigned long ulPositiveSizeDiff = 0; |
unsigned long ulPositiveSizeDiff = 0; |
1763 |
for (std::set<Chunk*>::const_iterator iter = ResizedChunks.begin(), end = ResizedChunks.end(); iter != end; ++iter) { |
std::set<Chunk*>* resizedChunks = _GET_RESIZED_CHUNKS(); |
1764 |
|
for (std::set<Chunk*>::const_iterator iter = resizedChunks->begin(), end = resizedChunks->end(); iter != end; ++iter) { |
1765 |
if ((*iter)->GetNewSize() == 0) { |
if ((*iter)->GetNewSize() == 0) { |
1766 |
throw Exception("There is at least one empty chunk (zero size): " + __resolveChunkPath(*iter)); |
throw Exception("There is at least one empty chunk (zero size): " + __resolveChunkPath(*iter)); |
1767 |
} |
} |
1817 |
if (ulTotalSize < ulActualSize) ResizeFile(ulTotalSize); |
if (ulTotalSize < ulActualSize) ResizeFile(ulTotalSize); |
1818 |
|
|
1819 |
// forget all resized chunks |
// forget all resized chunks |
1820 |
ResizedChunks.clear(); |
resizedChunks->clear(); |
1821 |
} |
} |
1822 |
|
|
1823 |
/** @brief Save changes to another file. |
/** @brief Save changes to another file. |
1836 |
void File::Save(const String& path) { |
void File::Save(const String& path) { |
1837 |
//TODO: we should make a check here if somebody tries to write to the same file and automatically call the other Save() method in that case |
//TODO: we should make a check here if somebody tries to write to the same file and automatically call the other Save() method in that case |
1838 |
|
|
1839 |
|
//TODO: implementation for the case where first chunk is not a global container (List chunk) is not implemented yet (i.e. Korg files) |
1840 |
|
if (Layout == layout_flat) |
1841 |
|
throw Exception("Saving a RIFF file with layout_flat is not implemented yet"); |
1842 |
|
|
1843 |
// make sure the RIFF tree is built (from the original file) |
// make sure the RIFF tree is built (from the original file) |
1844 |
LoadSubChunksRecursively(); |
LoadSubChunksRecursively(); |
1845 |
|
|
1846 |
if (Filename.length() > 0) SetMode(stream_mode_read); |
if (!bIsNewFile) SetMode(stream_mode_read); |
1847 |
// open the other (new) file for writing and truncate it to zero size |
// open the other (new) file for writing and truncate it to zero size |
1848 |
#if POSIX |
#if POSIX |
1849 |
hFileWrite = open(path.c_str(), O_RDWR | O_CREAT, S_IRUSR | S_IWUSR | S_IRGRP); |
hFileWrite = open(path.c_str(), O_RDWR | O_CREAT, S_IRUSR | S_IWUSR | S_IRGRP); |
1878 |
if (ulTotalSize < ulActualSize) ResizeFile(ulTotalSize); |
if (ulTotalSize < ulActualSize) ResizeFile(ulTotalSize); |
1879 |
|
|
1880 |
// forget all resized chunks |
// forget all resized chunks |
1881 |
ResizedChunks.clear(); |
_GET_RESIZED_CHUNKS()->clear(); |
1882 |
|
|
1883 |
#if POSIX |
#if POSIX |
1884 |
if (hFileWrite) close(hFileWrite); |
if (hFileWrite) close(hFileWrite); |
1891 |
|
|
1892 |
// associate new file with this File object from now on |
// associate new file with this File object from now on |
1893 |
Filename = path; |
Filename = path; |
1894 |
|
bIsNewFile = false; |
1895 |
Mode = (stream_mode_t) -1; // Just set it to an undefined mode ... |
Mode = (stream_mode_t) -1; // Just set it to an undefined mode ... |
1896 |
SetMode(stream_mode_read_write); // ... so SetMode() has to reopen the file handles. |
SetMode(stream_mode_read_write); // ... so SetMode() has to reopen the file handles. |
1897 |
} |
} |
1915 |
#if DEBUG |
#if DEBUG |
1916 |
std::cout << "File::~File()" << std::endl; |
std::cout << "File::~File()" << std::endl; |
1917 |
#endif // DEBUG |
#endif // DEBUG |
1918 |
|
Cleanup(); |
1919 |
|
} |
1920 |
|
|
1921 |
|
/** |
1922 |
|
* Returns @c true if this file has been created new from scratch and |
1923 |
|
* has not been stored to disk yet. |
1924 |
|
*/ |
1925 |
|
bool File::IsNew() const { |
1926 |
|
return bIsNewFile; |
1927 |
|
} |
1928 |
|
|
1929 |
|
void File::Cleanup() { |
1930 |
#if POSIX |
#if POSIX |
1931 |
if (hFileRead) close(hFileRead); |
if (hFileRead) close(hFileRead); |
1932 |
#elif defined(WIN32) |
#elif defined(WIN32) |
1934 |
#else |
#else |
1935 |
if (hFileRead) fclose(hFileRead); |
if (hFileRead) fclose(hFileRead); |
1936 |
#endif // POSIX |
#endif // POSIX |
1937 |
|
DeleteChunkList(); |
1938 |
|
pFile = NULL; |
1939 |
|
//HACK: see _GET_RESIZED_CHUNKS() comment |
1940 |
|
delete _GET_RESIZED_CHUNKS(); |
1941 |
} |
} |
1942 |
|
|
1943 |
void File::LogAsResized(Chunk* pResizedChunk) { |
void File::LogAsResized(Chunk* pResizedChunk) { |
1944 |
ResizedChunks.insert(pResizedChunk); |
_GET_RESIZED_CHUNKS()->insert(pResizedChunk); |
1945 |
} |
} |
1946 |
|
|
1947 |
void File::UnlogResized(Chunk* pResizedChunk) { |
void File::UnlogResized(Chunk* pResizedChunk) { |
1948 |
ResizedChunks.erase(pResizedChunk); |
_GET_RESIZED_CHUNKS()->erase(pResizedChunk); |
1949 |
} |
} |
1950 |
|
|
1951 |
unsigned long File::GetFileSize() { |
unsigned long File::GetFileSize() { |