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@ -21,118 +21,101 @@
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*/
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#include "filestream.h"
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#include <framework/application.h>
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#include <physfs.h>
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FileStream::FileStream(const std::string& name, PHYSFS_File *fileHandle)
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{
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m_name = name;
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m_pos = 0;
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m_fileHandle = fileHandle;
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m_cacheReadPos = 0;
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}
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FileStream::~FileStream()
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{
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assert(!g_app.isTermianted());
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close();
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}
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void FileStream::cache()
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{
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if(!m_fileHandle)
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g_logger.traceError("no file handle to cache");
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return;
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// cache entire file into cache buffer
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m_cacheReadPos = PHYSFS_tell(m_fileHandle);
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// cache entire file into data buffer
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m_pos = PHYSFS_tell(m_fileHandle);
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PHYSFS_seek(m_fileHandle, 0);
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int size = PHYSFS_fileLength(m_fileHandle);
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m_cacheBuffer.resize(size);
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int res = PHYSFS_read(m_fileHandle, &m_cacheBuffer[0], size, 1);
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m_data.resize(size);
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int res = PHYSFS_read(m_fileHandle, &m_data[0], size, 1);
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if(res == -1)
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g_logger.traceError(stdext::format("operation failed on '%s': %s", m_name, PHYSFS_getLastError()));
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throwError("unable to read file data");
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PHYSFS_close(m_fileHandle);
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m_fileHandle = nullptr;
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close();
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}
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bool FileStream::close()
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void FileStream::close()
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{
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if(m_fileHandle) {
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if(PHYSFS_isInit() && PHYSFS_close(m_fileHandle) == 0)
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g_logger.traceError(stdext::format("operation failed on '%s': %s", m_name, PHYSFS_getLastError()));
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if(!PHYSFS_close(m_fileHandle))
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throwError("close failed");
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m_fileHandle = nullptr;
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return true;
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} else {
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m_cacheBuffer.clear();
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m_cacheReadPos = 0;
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return true;
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m_data.clear();
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m_pos = 0;
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}
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}
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bool FileStream::flush()
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void FileStream::flush()
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{
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if(!m_fileHandle)
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return false;
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if(PHYSFS_flush(m_fileHandle) == 0) {
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g_logger.traceError(stdext::format("operation failed on '%s': %s", m_name, PHYSFS_getLastError()));
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return false;
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}
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return true;
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if(m_fileHandle && PHYSFS_flush(m_fileHandle) == 0)
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throwError("flush failed");
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}
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int FileStream::read(void *buffer, int size, int nmemb)
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int FileStream::read(void *buffer, uint32 size, uint32 nmemb)
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{
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if(m_fileHandle) {
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int res = PHYSFS_read(m_fileHandle, buffer, size, nmemb);
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if(res == -1) {
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g_logger.traceError(stdext::format("operation failed on '%s': %s", m_name, PHYSFS_getLastError()));
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return 0;
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}
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if(res == -1)
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throwError("read failed");
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return res;
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} else {
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uint maxReadPos = m_cacheBuffer.size()-1;
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uint maxReadPos = m_data.size()-1;
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int writePos = 0;
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uint8 *outBuffer = (uint8*)buffer;
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for(int i=0;i<nmemb;++i) {
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if(m_cacheReadPos+size > maxReadPos)
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for(uint i=0;i<nmemb;++i) {
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if(m_pos+size > maxReadPos)
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return i;
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for(int j=0;j<size;++j)
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outBuffer[writePos++] = m_cacheBuffer[m_cacheReadPos++];
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for(uint j=0;j<size;++j)
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outBuffer[writePos++] = m_data[m_pos++];
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}
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return nmemb;
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}
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}
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bool FileStream::write(void *buffer, int count)
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void FileStream::write(void *buffer, uint32 count)
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{
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if(!m_fileHandle)
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return false;
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if(PHYSFS_write(m_fileHandle, buffer, 1, count) != count) {
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g_logger.traceError(stdext::format("operation failed on '%s': %s", m_name, PHYSFS_getLastError()));
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return false;
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}
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return true;
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if(PHYSFS_write(m_fileHandle, buffer, 1, count) != count)
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throwError("write failed");
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}
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bool FileStream::seek(int pos)
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void FileStream::seek(uint32 pos)
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{
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if(m_fileHandle) {
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if(PHYSFS_seek(m_fileHandle, pos) == 0) {
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g_logger.traceError(stdext::format("operation failed on '%s': %s", m_name, PHYSFS_getLastError()));
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return false;
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}
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if(!PHYSFS_seek(m_fileHandle, pos))
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throwError("seek failed");
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} else {
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if(pos > (int)m_cacheBuffer.size() || pos < 0) {
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g_logger.traceError(stdext::format("operation failed on '%s': seek pos cannot be greater than file length", m_name));
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return false;
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}
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m_cacheReadPos = pos;
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if(pos > m_data.size())
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throwError("seek failed");
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m_pos = pos;
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}
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return true;
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}
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void FileStream::skip(uint len)
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{
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seek(tell() + len);
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}
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int FileStream::size()
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@ -140,7 +123,7 @@ int FileStream::size()
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if(m_fileHandle)
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return PHYSFS_fileLength(m_fileHandle);
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else
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return m_cacheBuffer.size();
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return m_data.size();
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}
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int FileStream::tell()
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@ -148,7 +131,7 @@ int FileStream::tell()
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if(m_fileHandle)
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return PHYSFS_tell(m_fileHandle);
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else
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return m_cacheReadPos;
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return m_pos;
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}
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uint8 FileStream::getU8()
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@ -156,15 +139,13 @@ uint8 FileStream::getU8()
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uint8 v = 0;
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if(m_fileHandle) {
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if(PHYSFS_read(m_fileHandle, &v, 1, 1) != 1)
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g_logger.traceError(stdext::format("operation failed on '%s': %s", m_name, PHYSFS_getLastError()));
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throwError("read failed");
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} else {
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if(m_cacheReadPos+1 > m_cacheBuffer.size()) {
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g_logger.traceError(stdext::format("operation failed on '%s': reached file eof", m_name));
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return 0;
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}
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if(m_pos+1 > m_data.size())
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throwError("read failed");
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v = m_cacheBuffer[m_cacheReadPos];
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m_cacheReadPos += 1;
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v = m_data[m_pos];
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m_pos += 1;
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}
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return v;
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}
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@ -174,15 +155,13 @@ uint16 FileStream::getU16()
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uint16 v = 0;
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if(m_fileHandle) {
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if(PHYSFS_readULE16(m_fileHandle, &v) == 0)
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g_logger.traceError(stdext::format("operation failed on '%s': %s", m_name, PHYSFS_getLastError()));
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throwError("read failed");
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} else {
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if(m_cacheReadPos+2 > m_cacheBuffer.size()) {
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g_logger.traceError(stdext::format("operation failed on '%s': reached file eof", m_name));
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return 0;
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}
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if(m_pos+2 > m_data.size())
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throwError("read failed");
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v = stdext::readLE16(&m_cacheBuffer[m_cacheReadPos]);
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m_cacheReadPos += 2;
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v = stdext::readLE16(&m_data[m_pos]);
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m_pos += 2;
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}
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return v;
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}
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@ -192,15 +171,13 @@ uint32 FileStream::getU32()
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uint32 v = 0;
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if(m_fileHandle) {
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if(PHYSFS_readULE32(m_fileHandle, &v) == 0)
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g_logger.traceError(stdext::format("operation failed on '%s': %s", m_name, PHYSFS_getLastError()));
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throwError("read failed");
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} else {
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if(m_cacheReadPos+4 > m_cacheBuffer.size()) {
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g_logger.traceError(stdext::format("operation failed on '%s': reached file eof", m_name));
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return 0;
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}
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if(m_pos+4 > m_data.size())
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throwError("read failed");
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v = stdext::readLE32(&m_cacheBuffer[m_cacheReadPos]);
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m_cacheReadPos += 4;
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v = stdext::readLE32(&m_data[m_pos]);
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m_pos += 4;
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}
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return v;
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}
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@ -210,15 +187,12 @@ uint64 FileStream::getU64()
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uint64 v = 0;
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if(m_fileHandle) {
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if(PHYSFS_readULE64(m_fileHandle, (PHYSFS_uint64*)&v) == 0)
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g_logger.traceError(stdext::format("operation failed on '%s': %s", m_name, PHYSFS_getLastError()));
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throwError("read failed");
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} else {
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if(m_cacheReadPos+8 > m_cacheBuffer.size()) {
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g_logger.traceError(stdext::format("operation failed on '%s': reached file eof", m_name));
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return 0;
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}
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v = stdext::readLE64(&m_cacheBuffer[m_cacheReadPos]);
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m_cacheReadPos += 8;
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if(m_pos+8 > m_data.size())
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throwError("read failed");
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v = stdext::readLE64(&m_data[m_pos]);
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m_pos += 8;
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}
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return v;
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}
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@ -235,66 +209,47 @@ std::string FileStream::getString()
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else
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str = std::string(buffer, len);
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} else {
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if(m_cacheReadPos+len > m_cacheBuffer.size()) {
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if(m_pos+len > m_data.size()) {
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g_logger.traceError(stdext::format("operation failed on '%s': reached file eof", m_name));
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return 0;
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}
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str = std::string((char*)&m_cacheBuffer[m_cacheReadPos], len);
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m_cacheReadPos += len;
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str = std::string((char*)&m_data[m_pos], len);
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m_pos += len;
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}
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} else {
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g_logger.traceError(stdext::format("operation failed on '%s': %s", m_name, PHYSFS_getLastError()));
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}
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return str;
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}
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uint8 FileStream::readFirstNode(uint32& type)
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{
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dump << "first";
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uint8 node = getU8();
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if(node != NODE_START)
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stdext::throw_exception("failed to read first node");
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type = getU32();
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return node;
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}
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uint8 FileStream::readNextNode(uint8 oldNode, uint32& type)
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{
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dump << "next";
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// end of old node
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if(getU8() != NODE_END)
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stdext::throw_exception("node not ended");
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// next node
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uint8 node = getU8();
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if(oldNode != NODE_START)
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stdext::throw_exception("invalid node start");
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type = getU32();
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return node;
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}
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void FileStream::addU8(uint8 v)
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{
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if(PHYSFS_write(m_fileHandle, &v, 1, 1) != 1)
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g_logger.traceError(stdext::format("operation failed on '%s': %s", m_name, PHYSFS_getLastError()));
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throwError("write failed");
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}
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void FileStream::addU16(uint8 v)
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{
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if(PHYSFS_writeULE16(m_fileHandle, v) == 0)
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g_logger.traceError(stdext::format("operation failed on '%s': %s", m_name, PHYSFS_getLastError()));
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throwError("write failed");
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}
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void FileStream::addU32(uint8 v)
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{
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if(PHYSFS_writeULE32(m_fileHandle, v) == 0)
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g_logger.traceError(stdext::format("operation failed on '%s': %s", m_name, PHYSFS_getLastError()));
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throwError("write failed");
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}
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void FileStream::addU64(uint8 v)
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{
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if(PHYSFS_writeULE64(m_fileHandle, v) == 0)
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g_logger.traceError(stdext::format("operation failed on '%s': %s", m_name, PHYSFS_getLastError()));
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throwError("write failed");
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}
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void FileStream::throwError(const std::string& message)
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|
{
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|
std::string completeMessage = stdext::format("in file '%s': %s", m_name, message);
|
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|
if(m_fileHandle)
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|
completeMessage += std::string(": ") + PHYSFS_getLastError();
|
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|
|
stdext::throw_exception(completeMessage);
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|
}
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