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d95794ec8a
As many open source projects have started doing it, we're removing the current year from the copyright notice, so that we don't need to bump it every year. It seems like only the first year of publication is technically relevant for copyright notices, and even that seems to be something that many companies stopped listing altogether (in a version controlled codebase, the commits are a much better source of date of publication than a hardcoded copyright statement). We also now list Godot Engine contributors first as we're collectively the current maintainers of the project, and we clarify that the "exclusive" copyright of the co-founders covers the timespan before opensourcing (their further contributions are included as part of Godot Engine contributors). Also fixed "cf." Frenchism - it's meant as "refer to / see".
146 lines
5.1 KiB
C++
146 lines
5.1 KiB
C++
/**************************************************************************/
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/* zip_io.cpp */
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/**************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/**************************************************************************/
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#include "zip_io.h"
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void *zipio_open(voidpf opaque, const char *p_fname, int mode) {
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Ref<FileAccess> *fa = reinterpret_cast<Ref<FileAccess> *>(opaque);
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ERR_FAIL_COND_V(fa == nullptr, nullptr);
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String fname;
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fname.parse_utf8(p_fname);
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int file_access_mode = 0;
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if (mode & ZLIB_FILEFUNC_MODE_WRITE) {
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file_access_mode |= FileAccess::WRITE;
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}
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if (mode & ZLIB_FILEFUNC_MODE_READ) {
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file_access_mode |= FileAccess::READ;
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}
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if (mode & ZLIB_FILEFUNC_MODE_CREATE) {
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file_access_mode |= FileAccess::WRITE_READ;
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}
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(*fa) = FileAccess::open(fname, file_access_mode);
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if (fa->is_null()) {
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return nullptr;
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}
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return opaque;
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}
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uLong zipio_read(voidpf opaque, voidpf stream, void *buf, uLong size) {
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Ref<FileAccess> *fa = reinterpret_cast<Ref<FileAccess> *>(opaque);
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ERR_FAIL_COND_V(fa == nullptr, 0);
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ERR_FAIL_COND_V(fa->is_null(), 0);
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return (*fa)->get_buffer((uint8_t *)buf, size);
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}
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uLong zipio_write(voidpf opaque, voidpf stream, const void *buf, uLong size) {
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Ref<FileAccess> *fa = reinterpret_cast<Ref<FileAccess> *>(opaque);
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ERR_FAIL_COND_V(fa == nullptr, 0);
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ERR_FAIL_COND_V(fa->is_null(), 0);
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(*fa)->store_buffer((uint8_t *)buf, size);
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return size;
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}
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long zipio_tell(voidpf opaque, voidpf stream) {
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Ref<FileAccess> *fa = reinterpret_cast<Ref<FileAccess> *>(opaque);
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ERR_FAIL_COND_V(fa == nullptr, 0);
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ERR_FAIL_COND_V(fa->is_null(), 0);
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return (*fa)->get_position();
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}
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long zipio_seek(voidpf opaque, voidpf stream, uLong offset, int origin) {
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Ref<FileAccess> *fa = reinterpret_cast<Ref<FileAccess> *>(opaque);
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ERR_FAIL_COND_V(fa == nullptr, 0);
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ERR_FAIL_COND_V(fa->is_null(), 0);
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uint64_t pos = offset;
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switch (origin) {
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case ZLIB_FILEFUNC_SEEK_CUR:
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pos = (*fa)->get_position() + offset;
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break;
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case ZLIB_FILEFUNC_SEEK_END:
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pos = (*fa)->get_length() + offset;
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break;
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default:
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break;
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}
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(*fa)->seek(pos);
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return 0;
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}
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int zipio_close(voidpf opaque, voidpf stream) {
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Ref<FileAccess> *fa = reinterpret_cast<Ref<FileAccess> *>(opaque);
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ERR_FAIL_COND_V(fa == nullptr, 0);
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ERR_FAIL_COND_V(fa->is_null(), 0);
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fa->unref();
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return 0;
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}
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int zipio_testerror(voidpf opaque, voidpf stream) {
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Ref<FileAccess> *fa = reinterpret_cast<Ref<FileAccess> *>(opaque);
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ERR_FAIL_COND_V(fa == nullptr, 1);
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ERR_FAIL_COND_V(fa->is_null(), 0);
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return (fa->is_valid() && (*fa)->get_error() != OK) ? 1 : 0;
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}
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voidpf zipio_alloc(voidpf opaque, uInt items, uInt size) {
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voidpf ptr = memalloc((size_t)items * size);
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memset(ptr, 0, items * size);
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return ptr;
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}
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void zipio_free(voidpf opaque, voidpf address) {
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memfree(address);
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}
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zlib_filefunc_def zipio_create_io(Ref<FileAccess> *p_data) {
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zlib_filefunc_def io;
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io.opaque = (void *)p_data;
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io.zopen_file = zipio_open;
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io.zread_file = zipio_read;
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io.zwrite_file = zipio_write;
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io.ztell_file = zipio_tell;
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io.zseek_file = zipio_seek;
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io.zclose_file = zipio_close;
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io.zerror_file = zipio_testerror;
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io.alloc_mem = zipio_alloc;
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io.free_mem = zipio_free;
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return io;
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}
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