diff options
Diffstat (limited to 'core/io/zip_io.cpp')
| -rw-r--r-- | core/io/zip_io.cpp | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/core/io/zip_io.cpp b/core/io/zip_io.cpp new file mode 100644 index 0000000000..b7f841b66f --- /dev/null +++ b/core/io/zip_io.cpp @@ -0,0 +1,137 @@ +/*************************************************************************/ +/* zip_io.cpp */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* https://godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2014-2018 Godot Engine contributors (cf. AUTHORS.md) */ +/* */ +/* Permission is hereby granted, free of charge, to any person obtaining */ +/* a copy of this software and associated documentation files (the */ +/* "Software"), to deal in the Software without restriction, including */ +/* without limitation the rights to use, copy, modify, merge, publish, */ +/* distribute, sublicense, and/or sell copies of the Software, and to */ +/* permit persons to whom the Software is furnished to do so, subject to */ +/* the following conditions: */ +/* */ +/* The above copyright notice and this permission notice shall be */ +/* included in all copies or substantial portions of the Software. */ +/* */ +/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ +/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ +/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/ +/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ +/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ +/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ +/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ +/*************************************************************************/ + +#include "zip_io.h" + +#include "core/os/copymem.h" + +void *zipio_open(void *data, const char *p_fname, int mode) { + + FileAccess *&f = *(FileAccess **)data; + + String fname; + fname.parse_utf8(p_fname); + + if (mode & ZLIB_FILEFUNC_MODE_WRITE) { + f = FileAccess::open(fname, FileAccess::WRITE); + } else { + + f = FileAccess::open(fname, FileAccess::READ); + } + + if (!f) + return NULL; + + return data; +} + +uLong zipio_read(void *data, void *fdata, void *buf, uLong size) { + + FileAccess *f = *(FileAccess **)data; + return f->get_buffer((uint8_t *)buf, size); +} + +uLong zipio_write(voidpf opaque, voidpf stream, const void *buf, uLong size) { + + FileAccess *f = *(FileAccess **)opaque; + f->store_buffer((uint8_t *)buf, size); + return size; +} + +long zipio_tell(voidpf opaque, voidpf stream) { + + FileAccess *f = *(FileAccess **)opaque; + return f->get_position(); +} + +long zipio_seek(voidpf opaque, voidpf stream, uLong offset, int origin) { + + FileAccess *f = *(FileAccess **)opaque; + + int pos = offset; + switch (origin) { + + case ZLIB_FILEFUNC_SEEK_CUR: + pos = f->get_position() + offset; + break; + case ZLIB_FILEFUNC_SEEK_END: + pos = f->get_len() + offset; + break; + default: + break; + }; + + f->seek(pos); + return 0; +} + +int zipio_close(voidpf opaque, voidpf stream) { + + FileAccess *&f = *(FileAccess **)opaque; + if (f) { + f->close(); + f = NULL; + } + return 0; +} + +int zipio_testerror(voidpf opaque, voidpf stream) { + + FileAccess *f = *(FileAccess **)opaque; + return (f && f->get_error() != OK) ? 1 : 0; +} + +voidpf zipio_alloc(voidpf opaque, uInt items, uInt size) { + + voidpf ptr = memalloc(items * size); + zeromem(ptr, items * size); + return ptr; +} + +void zipio_free(voidpf opaque, voidpf address) { + + memfree(address); +} + +zlib_filefunc_def zipio_create_io_from_file(FileAccess **p_file) { + + zlib_filefunc_def io; + io.opaque = p_file; + io.zopen_file = zipio_open; + io.zread_file = zipio_read; + io.zwrite_file = zipio_write; + io.ztell_file = zipio_tell; + io.zseek_file = zipio_seek; + io.zclose_file = zipio_close; + io.zerror_file = zipio_testerror; + io.alloc_mem = zipio_alloc; + io.free_mem = zipio_free; + return io; +} |