Update ttvfs to new version

ExternalLibs/ttvfs_zip/VFSZipArchiveRef.cpp

@@ -0,0 +1,121 @@
+#include "VFSZipArchiveRef.h"
+#include "miniz.h"
+
+
+VFS_NAMESPACE_START
+
+
+static size_t zip_read_func(void *pOpaque, mz_uint64 file_ofs, void *pBuf, size_t n)
+{
+    File *vf = (File*)pOpaque;
+    mz_int64 cur_ofs = vf->getpos();
+    if((mz_int64)file_ofs < 0)
+        return 0;
+    if(cur_ofs != (mz_int64)file_ofs && !vf->seek((vfspos)file_ofs, SEEK_SET))
+        return 0;
+    return vf->read(pBuf, n);
+}
+
+static bool zip_reader_init_vfsfile(mz_zip_archive *pZip, File *vf, mz_uint32 flags)
+{
+    mz_uint64 file_size = vf->size();
+    if(!file_size || !vf->open("rb"))
+    {
+        vf->close();
+        return false;
+    }
+    pZip->m_pRead = zip_read_func;
+    pZip->m_pIO_opaque = vf;
+    if (!mz_zip_reader_init(pZip, file_size, flags))
+    {
+        vf->close();
+        return false;
+    }
+    return true;
+}
+
+static bool zip_reader_reopen_vfsfile(mz_zip_archive *pZip, mz_uint32 flags)
+{
+    if(!(pZip && pZip->m_pIO_opaque && pZip->m_pRead))
+        return false;
+    File *vf = (File*)pZip->m_pIO_opaque;
+    mz_uint64 file_size = vf->size();
+    if(!file_size)
+    {
+        vf->close();
+        return false;
+    }
+    if(!vf->isopen())
+        if(!vf->open("rb"))
+            return false;
+    if(pZip->m_zip_mode == MZ_ZIP_MODE_READING)
+        return true;
+    if (!mz_zip_reader_init(pZip, file_size, flags))
+    {
+        vf->close();
+        return false;
+    }
+    return true;
+}
+
+
+
+
+ZipArchiveRef::ZipArchiveRef(File *file)
+: archiveFile(file)
+{
+    mz = new mz_zip_archive;
+    memset(mz, 0, sizeof(mz_zip_archive));
+}
+
+#define MZ ((mz_zip_archive*)mz)
+
+ZipArchiveRef::~ZipArchiveRef()
+{
+    close();
+    delete MZ;
+}
+
+bool ZipArchiveRef::init()
+{
+    return zip_reader_init_vfsfile(MZ, archiveFile, 0);
+}
+
+bool ZipArchiveRef::openRead()
+{
+    return zip_reader_reopen_vfsfile(MZ, 0);
+}
+
+void ZipArchiveRef::close()
+{
+    switch(MZ->m_zip_mode)
+    {
+        case MZ_ZIP_MODE_READING:
+            mz_zip_reader_end(MZ);
+            break;
+
+        case MZ_ZIP_MODE_WRITING:
+            mz_zip_writer_finalize_archive(MZ);
+            mz_zip_writer_end(MZ);
+            break;
+
+        case MZ_ZIP_MODE_WRITING_HAS_BEEN_FINALIZED:
+            mz_zip_writer_end(MZ);
+            break;
+
+        case MZ_ZIP_MODE_INVALID:
+            break; // nothing to do
+    }
+
+    archiveFile->close();
+}
+
+const char *ZipArchiveRef::fullname() const
+{
+    return archiveFile->fullname();
+}
+
+
+
+VFS_NAMESPACE_END
+