mirror of
https://github.com/AquariaOSE/Aquaria.git
synced 2024-11-16 06:29:31 +00:00
107 lines
No EOL
2.3 KiB
C++
107 lines
No EOL
2.3 KiB
C++
#include "VFSFileZip.h"
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#include "VFSDirZip.h"
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#include "VFSTools.h"
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#include "VFSInternal.h"
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#include "miniz.h"
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VFS_NAMESPACE_START
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static size_t zip_read_func(void *pOpaque, mz_uint64 file_ofs, void *pBuf, size_t n)
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{
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VFSFile *vf = (VFSFile*)pOpaque;
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mz_int64 cur_ofs = vf->getpos();
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if((mz_int64)file_ofs < 0)
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return 0;
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if(cur_ofs != (mz_int64)file_ofs && !vf->seek((vfspos)file_ofs))
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return 0;
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return vf->read(pBuf, n);
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}
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static bool zip_reader_init_vfsfile(mz_zip_archive *pZip, VFSFile *vf, mz_uint32 flags)
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{
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if(!(pZip || vf))
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return false;
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vf->open("rb");
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mz_uint64 file_size = vf->size();
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if(!file_size)
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{
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vf->close();
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return false;
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}
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pZip->m_pRead = zip_read_func;
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pZip->m_pIO_opaque = vf;
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if (!mz_zip_reader_init(pZip, file_size, flags))
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{
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vf->close();
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return false;
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}
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return true;
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}
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VFSDirZip::VFSDirZip(VFSFile *zf)
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: VFSDir(zf->fullname()), _zf(zf)
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{
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_zf->ref++;
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_setOrigin(this);
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memset(&_zip, 0, sizeof(_zip));
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}
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VFSDirZip::~VFSDirZip()
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{
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close();
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_zf->ref--;
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}
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bool VFSDirZip::close(void)
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{
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mz_zip_reader_end(&_zip);
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_zf->close();
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return true;
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}
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VFSDir *VFSDirZip::createNew(const char *dir) const
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{
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return VFSDir::createNew(dir); // inside a Zip file; only the base dir can be a real VFSDirZip.
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}
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unsigned int VFSDirZip::load(bool /*ignored*/)
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{
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close();
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if(!zip_reader_init_vfsfile(&_zip, _zf, 0))
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return 0;
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unsigned int files = mz_zip_reader_get_num_files(&_zip);
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mz_zip_archive_file_stat fs;
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for (unsigned int i = 0; i < files; ++i)
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{
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// FIXME: do we want empty dirs in the tree?
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if(mz_zip_reader_is_file_a_directory(&_zip, i))
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continue;
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if(mz_zip_reader_is_file_encrypted(&_zip, i))
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continue;
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if(!mz_zip_reader_file_stat(&_zip, i, &fs))
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continue;
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if(getFile(fs.m_filename))
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continue;
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VFSFileZip *vf = new VFSFileZip(&_zip);
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vf->_setOrigin(this);
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memcpy(vf->getZipFileStat(), &fs, sizeof(mz_zip_archive_file_stat));
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vf->_init();
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addRecursive(vf, true, VFSDir::NONE);
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vf->ref--;
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}
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// Not necessary to keep open all the time, VFSFileZip will re-open the archive if needed
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//close();
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return files;
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}
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VFS_NAMESPACE_END |