janwas
a859562ea7
- properly differentiate between buffer/offset alignment and length alignment (relevant since block size has been increased to 256k) - use VfsPath for most game paths instead of CStr - clean up timer interface and implementation - self-tests no longer crash - file_cache.cpp: fix for the case where allocation fails (prevent deleter from seeing a null pointer) - allocators: move all shared_ptr-related stuff to its own component; add DummySharedPtr - codec: disable checksums (important for performance at work) - File: made into an interface class to avoid export problems. not entirely sure about this.. - vfs_path.h, path.h, os_path.h: proper fix for using fs::change_extension and similar utility functions with derivatives of basic_path - lib_api: automatically link against import lib if building lib/ as a DLL - path_util: remove unused functions (this component is deprecated) - compiler.h: add INLINE - Xeromyces.cpp: pass PIVFS so that GetXMBPath works in self-test (should do this mostly everywhere rather than have one singleton g_VFS) This was SVN commit r5537.
61 lines
2.0 KiB
C++
61 lines
2.0 KiB
C++
/**
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* =========================================================================
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* File : FilePacker.cpp
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* Project : 0 A.D.
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* Description : Resizable buffer, for writing binary files
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* =========================================================================
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*/
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#include "precompiled.h"
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#include "FilePacker.h"
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#include "ps/Filesystem.h"
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#include "lib/byte_order.h"
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#include <string.h>
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////////////////////////////////////////////////////////////////////////////////////////
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// CFilePacker constructor
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// rationale for passing in version + signature here: see header
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CFilePacker::CFilePacker(u32 version, const char magicstr[4])
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{
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// put header in our data array.
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// (size will be updated on every Pack*() call)
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char header[12];
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strncpy(header+0, magicstr, 4); // not 0-terminated => no _s
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write_le32(header+4, version);
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write_le32(header+8, 0); // datasize
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m_writeBuffer.Append(header, 12);
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}
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////////////////////////////////////////////////////////////////////////////////////////
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// Write: write out to file all packed data added so far
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void CFilePacker::Write(const VfsPath& filename)
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{
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const u32 size_le = to_le32(u32_from_larger(m_writeBuffer.Size()));
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m_writeBuffer.Overwrite(&size_le, sizeof(size_le), 8);
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// write out all data (including header)
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if(g_VFS->CreateFile(filename, m_writeBuffer.Data(), m_writeBuffer.Size()) < 0)
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throw PSERROR_File_WriteFailed();
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}
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////////////////////////////////////////////////////////////////////////////////////////
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// PackRaw: pack given number of bytes onto the end of the data stream
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void CFilePacker::PackRaw(const void* rawData, size_t rawSize)
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{
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m_writeBuffer.Append(rawData, rawSize);
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}
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////////////////////////////////////////////////////////////////////////////////////////
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// PackString: pack a string onto the end of the data stream
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void CFilePacker::PackString(const CStr& str)
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{
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const size_t length = str.length();
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const u32 length_le = to_le32(u32_from_larger(length));
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PackRaw(&length_le, sizeof(length_le));
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PackRaw((const char*)str, length);
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}
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