490 lines
10 KiB
C++
490 lines
10 KiB
C++
/*************************************************************************/
|
|
/* file_access_pack.cpp */
|
|
/*************************************************************************/
|
|
/* This file is part of: */
|
|
/* GODOT ENGINE */
|
|
/* https://godotengine.org */
|
|
/*************************************************************************/
|
|
/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
|
|
/* Copyright (c) 2014-2017 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 "file_access_pack.h"
|
|
#include "version.h"
|
|
|
|
#include <stdio.h>
|
|
|
|
#define PACK_VERSION 1
|
|
|
|
Error PackedData::add_pack(const String &p_path) {
|
|
|
|
for (int i = 0; i < sources.size(); i++) {
|
|
|
|
if (sources[i]->try_open_pack(p_path)) {
|
|
|
|
return OK;
|
|
};
|
|
};
|
|
|
|
return ERR_FILE_UNRECOGNIZED;
|
|
};
|
|
|
|
void PackedData::add_path(const String &pkg_path, const String &path, uint64_t ofs, uint64_t size, const uint8_t *p_md5, PackSource *p_src) {
|
|
|
|
PathMD5 pmd5(path.md5_buffer());
|
|
//printf("adding path %ls, %lli, %lli\n", path.c_str(), pmd5.a, pmd5.b);
|
|
|
|
bool exists = files.has(pmd5);
|
|
|
|
PackedFile pf;
|
|
pf.pack = pkg_path;
|
|
pf.offset = ofs;
|
|
pf.size = size;
|
|
for (int i = 0; i < 16; i++)
|
|
pf.md5[i] = p_md5[i];
|
|
pf.src = p_src;
|
|
|
|
files[pmd5] = pf;
|
|
|
|
if (!exists) {
|
|
//search for dir
|
|
String p = path.replace_first("res://", "");
|
|
PackedDir *cd = root;
|
|
|
|
if (p.find("/") != -1) { //in a subdir
|
|
|
|
Vector<String> ds = p.get_base_dir().split("/");
|
|
|
|
for (int j = 0; j < ds.size(); j++) {
|
|
|
|
if (!cd->subdirs.has(ds[j])) {
|
|
|
|
PackedDir *pd = memnew(PackedDir);
|
|
pd->name = ds[j];
|
|
pd->parent = cd;
|
|
cd->subdirs[pd->name] = pd;
|
|
cd = pd;
|
|
} else {
|
|
cd = cd->subdirs[ds[j]];
|
|
}
|
|
}
|
|
}
|
|
cd->files.insert(path.get_file());
|
|
}
|
|
}
|
|
|
|
void PackedData::add_pack_source(PackSource *p_source) {
|
|
|
|
if (p_source != NULL) {
|
|
sources.push_back(p_source);
|
|
}
|
|
};
|
|
|
|
PackedData *PackedData::singleton = NULL;
|
|
|
|
PackedData::PackedData() {
|
|
|
|
singleton = this;
|
|
root = memnew(PackedDir);
|
|
root->parent = NULL;
|
|
disabled = false;
|
|
|
|
add_pack_source(memnew(PackedSourcePCK));
|
|
}
|
|
|
|
void PackedData::_free_packed_dirs(PackedDir *p_dir) {
|
|
|
|
for (Map<String, PackedDir *>::Element *E = p_dir->subdirs.front(); E; E = E->next())
|
|
_free_packed_dirs(E->get());
|
|
memdelete(p_dir);
|
|
}
|
|
|
|
PackedData::~PackedData() {
|
|
|
|
for (int i = 0; i < sources.size(); i++) {
|
|
memdelete(sources[i]);
|
|
}
|
|
_free_packed_dirs(root);
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////
|
|
|
|
bool PackedSourcePCK::try_open_pack(const String &p_path) {
|
|
|
|
FileAccess *f = FileAccess::open(p_path, FileAccess::READ);
|
|
if (!f)
|
|
return false;
|
|
|
|
//printf("try open %ls!\n", p_path.c_str());
|
|
|
|
uint32_t magic = f->get_32();
|
|
|
|
if (magic != 0x43504447) {
|
|
//maybe at he end.... self contained exe
|
|
f->seek_end();
|
|
f->seek(f->get_pos() - 4);
|
|
magic = f->get_32();
|
|
if (magic != 0x43504447) {
|
|
|
|
memdelete(f);
|
|
return false;
|
|
}
|
|
f->seek(f->get_pos() - 12);
|
|
|
|
uint64_t ds = f->get_64();
|
|
f->seek(f->get_pos() - ds - 8);
|
|
|
|
magic = f->get_32();
|
|
if (magic != 0x43504447) {
|
|
|
|
memdelete(f);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
uint32_t version = f->get_32();
|
|
uint32_t ver_major = f->get_32();
|
|
uint32_t ver_minor = f->get_32();
|
|
uint32_t ver_rev = f->get_32();
|
|
|
|
ERR_EXPLAIN("Pack version unsupported: " + itos(version));
|
|
ERR_FAIL_COND_V(version != PACK_VERSION, false);
|
|
ERR_EXPLAIN("Pack created with a newer version of the engine: " + itos(ver_major) + "." + itos(ver_minor) + "." + itos(ver_rev));
|
|
ERR_FAIL_COND_V(ver_major > VERSION_MAJOR || (ver_major == VERSION_MAJOR && ver_minor > VERSION_MINOR), false);
|
|
|
|
for (int i = 0; i < 16; i++) {
|
|
//reserved
|
|
f->get_32();
|
|
}
|
|
|
|
int file_count = f->get_32();
|
|
|
|
for (int i = 0; i < file_count; i++) {
|
|
|
|
uint32_t sl = f->get_32();
|
|
CharString cs;
|
|
cs.resize(sl + 1);
|
|
f->get_buffer((uint8_t *)cs.ptr(), sl);
|
|
cs[sl] = 0;
|
|
|
|
String path;
|
|
path.parse_utf8(cs.ptr());
|
|
|
|
uint64_t ofs = f->get_64();
|
|
uint64_t size = f->get_64();
|
|
uint8_t md5[16];
|
|
f->get_buffer(md5, 16);
|
|
PackedData::get_singleton()->add_path(p_path, path, ofs, size, md5, this);
|
|
};
|
|
|
|
return true;
|
|
};
|
|
|
|
FileAccess *PackedSourcePCK::get_file(const String &p_path, PackedData::PackedFile *p_file) {
|
|
|
|
return memnew(FileAccessPack(p_path, *p_file));
|
|
};
|
|
|
|
//////////////////////////////////////////////////////////////////
|
|
|
|
Error FileAccessPack::_open(const String &p_path, int p_mode_flags) {
|
|
|
|
ERR_FAIL_V(ERR_UNAVAILABLE);
|
|
return ERR_UNAVAILABLE;
|
|
}
|
|
|
|
void FileAccessPack::close() {
|
|
|
|
f->close();
|
|
}
|
|
|
|
bool FileAccessPack::is_open() const {
|
|
|
|
return f->is_open();
|
|
}
|
|
|
|
void FileAccessPack::seek(size_t p_position) {
|
|
|
|
if (p_position > pf.size) {
|
|
eof = true;
|
|
} else {
|
|
eof = false;
|
|
}
|
|
|
|
f->seek(pf.offset + p_position);
|
|
pos = p_position;
|
|
}
|
|
void FileAccessPack::seek_end(int64_t p_position) {
|
|
|
|
seek(pf.size + p_position);
|
|
}
|
|
size_t FileAccessPack::get_pos() const {
|
|
|
|
return pos;
|
|
}
|
|
size_t FileAccessPack::get_len() const {
|
|
|
|
return pf.size;
|
|
}
|
|
|
|
bool FileAccessPack::eof_reached() const {
|
|
|
|
return eof;
|
|
}
|
|
|
|
uint8_t FileAccessPack::get_8() const {
|
|
|
|
if (pos >= pf.size) {
|
|
eof = true;
|
|
return 0;
|
|
}
|
|
|
|
pos++;
|
|
return f->get_8();
|
|
}
|
|
|
|
int FileAccessPack::get_buffer(uint8_t *p_dst, int p_length) const {
|
|
|
|
if (eof)
|
|
return 0;
|
|
|
|
int64_t to_read = p_length;
|
|
if (to_read + pos > pf.size) {
|
|
eof = true;
|
|
to_read = int64_t(pf.size) - int64_t(pos);
|
|
}
|
|
|
|
pos += p_length;
|
|
|
|
if (to_read <= 0)
|
|
return 0;
|
|
f->get_buffer(p_dst, to_read);
|
|
|
|
return to_read;
|
|
}
|
|
|
|
void FileAccessPack::set_endian_swap(bool p_swap) {
|
|
FileAccess::set_endian_swap(p_swap);
|
|
f->set_endian_swap(p_swap);
|
|
}
|
|
|
|
Error FileAccessPack::get_error() const {
|
|
|
|
if (eof)
|
|
return ERR_FILE_EOF;
|
|
return OK;
|
|
}
|
|
|
|
void FileAccessPack::store_8(uint8_t p_dest) {
|
|
|
|
ERR_FAIL();
|
|
}
|
|
|
|
void FileAccessPack::store_buffer(const uint8_t *p_src, int p_length) {
|
|
|
|
ERR_FAIL();
|
|
}
|
|
|
|
bool FileAccessPack::file_exists(const String &p_name) {
|
|
|
|
return false;
|
|
}
|
|
|
|
FileAccessPack::FileAccessPack(const String &p_path, const PackedData::PackedFile &p_file)
|
|
: pf(p_file),
|
|
f(FileAccess::open(pf.pack, FileAccess::READ)) {
|
|
if (!f) {
|
|
ERR_EXPLAIN("Can't open pack-referenced file: " + String(pf.pack));
|
|
ERR_FAIL_COND(!f);
|
|
}
|
|
f->seek(pf.offset);
|
|
pos = 0;
|
|
eof = false;
|
|
}
|
|
|
|
FileAccessPack::~FileAccessPack() {
|
|
if (f)
|
|
memdelete(f);
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////////
|
|
// DIR ACCESS
|
|
//////////////////////////////////////////////////////////////////////////////////
|
|
|
|
Error DirAccessPack::list_dir_begin() {
|
|
|
|
list_dirs.clear();
|
|
list_files.clear();
|
|
|
|
for (Map<String, PackedData::PackedDir *>::Element *E = current->subdirs.front(); E; E = E->next()) {
|
|
|
|
list_dirs.push_back(E->key());
|
|
}
|
|
|
|
for (Set<String>::Element *E = current->files.front(); E; E = E->next()) {
|
|
|
|
list_files.push_back(E->get());
|
|
}
|
|
|
|
return OK;
|
|
}
|
|
|
|
String DirAccessPack::get_next() {
|
|
|
|
if (list_dirs.size()) {
|
|
cdir = true;
|
|
String d = list_dirs.front()->get();
|
|
list_dirs.pop_front();
|
|
return d;
|
|
} else if (list_files.size()) {
|
|
cdir = false;
|
|
String f = list_files.front()->get();
|
|
list_files.pop_front();
|
|
return f;
|
|
} else {
|
|
return String();
|
|
}
|
|
}
|
|
bool DirAccessPack::current_is_dir() const {
|
|
|
|
return cdir;
|
|
}
|
|
bool DirAccessPack::current_is_hidden() const {
|
|
|
|
return false;
|
|
}
|
|
void DirAccessPack::list_dir_end() {
|
|
|
|
list_dirs.clear();
|
|
list_files.clear();
|
|
}
|
|
|
|
int DirAccessPack::get_drive_count() {
|
|
|
|
return 0;
|
|
}
|
|
String DirAccessPack::get_drive(int p_drive) {
|
|
|
|
return "";
|
|
}
|
|
|
|
Error DirAccessPack::change_dir(String p_dir) {
|
|
|
|
String nd = p_dir.replace("\\", "/");
|
|
bool absolute = false;
|
|
if (nd.begins_with("res://")) {
|
|
nd = nd.replace_first("res://", "");
|
|
absolute = true;
|
|
}
|
|
|
|
nd = nd.simplify_path();
|
|
|
|
if (nd == "") nd = ".";
|
|
|
|
if (nd.begins_with("/")) {
|
|
nd = nd.replace_first("/", "");
|
|
absolute = true;
|
|
}
|
|
|
|
Vector<String> paths = nd.split("/");
|
|
|
|
PackedData::PackedDir *pd;
|
|
|
|
if (absolute)
|
|
pd = PackedData::get_singleton()->root;
|
|
else
|
|
pd = current;
|
|
|
|
for (int i = 0; i < paths.size(); i++) {
|
|
|
|
String p = paths[i];
|
|
if (p == ".") {
|
|
continue;
|
|
} else if (p == "..") {
|
|
if (pd->parent) {
|
|
pd = pd->parent;
|
|
}
|
|
} else if (pd->subdirs.has(p)) {
|
|
|
|
pd = pd->subdirs[p];
|
|
|
|
} else {
|
|
|
|
return ERR_INVALID_PARAMETER;
|
|
}
|
|
}
|
|
|
|
current = pd;
|
|
|
|
return OK;
|
|
}
|
|
|
|
String DirAccessPack::get_current_dir() {
|
|
|
|
PackedData::PackedDir *pd = current;
|
|
String p = current->name;
|
|
|
|
while (pd->parent) {
|
|
pd = pd->parent;
|
|
p = pd->name + "/" + p;
|
|
}
|
|
|
|
return "res://" + p;
|
|
}
|
|
|
|
bool DirAccessPack::file_exists(String p_file) {
|
|
|
|
return current->files.has(p_file);
|
|
}
|
|
|
|
bool DirAccessPack::dir_exists(String p_dir) {
|
|
|
|
return current->subdirs.has(p_dir);
|
|
}
|
|
|
|
Error DirAccessPack::make_dir(String p_dir) {
|
|
|
|
return ERR_UNAVAILABLE;
|
|
}
|
|
|
|
Error DirAccessPack::rename(String p_from, String p_to) {
|
|
|
|
return ERR_UNAVAILABLE;
|
|
}
|
|
Error DirAccessPack::remove(String p_name) {
|
|
|
|
return ERR_UNAVAILABLE;
|
|
}
|
|
|
|
size_t DirAccessPack::get_space_left() {
|
|
|
|
return 0;
|
|
}
|
|
|
|
DirAccessPack::DirAccessPack() {
|
|
|
|
current = PackedData::get_singleton()->root;
|
|
cdir = false;
|
|
}
|
|
|
|
DirAccessPack::~DirAccessPack() {
|
|
}
|