151 lines
4.2 KiB
C++
151 lines
4.2 KiB
C++
/*************************************************************************/
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/* file_access_buffered_fa.h */
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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) 2007-2018 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2018 Godot Engine contributors (cf. AUTHORS.md) */
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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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#ifndef FILE_ACCESS_BUFFERED_FA_H
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#define FILE_ACCESS_BUFFERED_FA_H
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#include "core/io/file_access_buffered.h"
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template <class T>
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class FileAccessBufferedFA : public FileAccessBuffered {
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T f;
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int read_data_block(int p_offset, int p_size, uint8_t *p_dest = 0) const {
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ERR_FAIL_COND_V(!f.is_open(), -1);
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((T *)&f)->seek(p_offset);
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if (p_dest) {
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f.get_buffer(p_dest, p_size);
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return p_size;
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} else {
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cache.offset = p_offset;
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cache.buffer.resize(p_size);
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// on dvector
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//PoolVector<uint8_t>::Write write = cache.buffer.write();
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//f.get_buffer(write.ptrw(), p_size);
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// on vector
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f.get_buffer(cache.buffer.ptrw(), p_size);
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return p_size;
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};
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};
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static FileAccess *create() {
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return memnew(FileAccessBufferedFA<T>());
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};
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protected:
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virtual void _set_access_type(AccessType p_access) {
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f._set_access_type(p_access);
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FileAccessBuffered::_set_access_type(p_access);
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};
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public:
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void flush() {
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f.flush();
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};
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void store_8(uint8_t p_dest) {
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f.store_8(p_dest);
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};
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void store_buffer(const uint8_t *p_src, int p_length) {
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f.store_buffer(p_src, p_length);
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};
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bool file_exists(const String &p_name) {
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return f.file_exists(p_name);
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};
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Error _open(const String &p_path, int p_mode_flags) {
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close();
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Error ret = f._open(p_path, p_mode_flags);
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if (ret != OK)
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return ret;
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//ERR_FAIL_COND_V( ret != OK, ret );
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file.size = f.get_len();
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file.offset = 0;
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file.open = true;
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file.name = p_path;
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file.access_flags = p_mode_flags;
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cache.buffer.resize(0);
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cache.offset = 0;
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return set_error(OK);
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};
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void close() {
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f.close();
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file.offset = 0;
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file.size = 0;
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file.open = false;
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file.name = "";
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cache.buffer.resize(0);
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cache.offset = 0;
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set_error(OK);
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};
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/*
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static void make_default() {
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FileAccess::create_func = FileAccessBufferedFA<T>::create;
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};
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*/
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virtual uint64_t _get_modified_time(const String &p_file) {
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return f._get_modified_time(p_file);
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}
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FileAccessBufferedFA(){
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};
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};
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#endif // FILE_ACCESS_BUFFERED_FA_H
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