mirror of
https://github.com/godotengine/godot.git
synced 2024-11-27 09:16:35 +08:00
454 lines
11 KiB
C++
454 lines
11 KiB
C++
/*************************************************************************/
|
|
/* packed_data_container.cpp */
|
|
/*************************************************************************/
|
|
/* This file is part of: */
|
|
/* GODOT ENGINE */
|
|
/* http://www.godotengine.org */
|
|
/*************************************************************************/
|
|
/* Copyright (c) 2007-2016 Juan Linietsky, Ariel Manzur. */
|
|
/* */
|
|
/* 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 "packed_data_container.h"
|
|
#include "io/marshalls.h"
|
|
#include "core_string_names.h"
|
|
|
|
|
|
|
|
Variant PackedDataContainer::getvar(const Variant& p_key, bool *r_valid) const {
|
|
|
|
bool err=false;
|
|
Variant ret = _key_at_ofs(0,p_key,err);
|
|
if (r_valid)
|
|
*r_valid=!err;
|
|
return ret;
|
|
}
|
|
|
|
int PackedDataContainer::size() const {
|
|
|
|
return _size(0);
|
|
};
|
|
|
|
Variant PackedDataContainer::_iter_init_ofs(const Array& p_iter,uint32_t p_offset) {
|
|
|
|
Array ref=p_iter;
|
|
uint32_t size = _size(p_offset);
|
|
if (size==0 || ref.size()!=1)
|
|
return false;
|
|
else {
|
|
ref[0]=0;
|
|
return true;
|
|
}
|
|
|
|
|
|
}
|
|
|
|
Variant PackedDataContainer::_iter_next_ofs(const Array& p_iter,uint32_t p_offset){
|
|
|
|
Array ref=p_iter;
|
|
uint32_t size = _size(p_offset);
|
|
if (ref.size()!=1)
|
|
return false;
|
|
int pos = ref[0];
|
|
if (pos<0 || pos>=size)
|
|
return false;
|
|
pos+=1;
|
|
ref[0]=pos;
|
|
return pos!=size;
|
|
|
|
}
|
|
|
|
Variant PackedDataContainer::_iter_get_ofs(const Variant& p_iter,uint32_t p_offset){
|
|
|
|
uint32_t size = _size(p_offset);
|
|
int pos=p_iter;
|
|
if (pos<0 || pos>=size)
|
|
return Variant();
|
|
|
|
DVector<uint8_t>::Read rd=data.read();
|
|
const uint8_t *r=&rd[p_offset];
|
|
uint32_t type = decode_uint32(r);
|
|
|
|
bool err=false;
|
|
if (type==TYPE_ARRAY) {
|
|
|
|
uint32_t vpos = decode_uint32(rd.ptr() + p_offset+8+pos*4);
|
|
return _get_at_ofs(vpos,rd.ptr(),err);
|
|
|
|
} else if (type==TYPE_DICT) {
|
|
|
|
uint32_t vpos = decode_uint32(rd.ptr() + p_offset+8+pos*12+4);
|
|
return _get_at_ofs(vpos,rd.ptr(),err);
|
|
} else {
|
|
ERR_FAIL_V(Variant());
|
|
}
|
|
}
|
|
|
|
|
|
Variant PackedDataContainer::_get_at_ofs(uint32_t p_ofs,const uint8_t *p_buf,bool &err) const {
|
|
|
|
uint32_t type = decode_uint32(p_buf + p_ofs);
|
|
|
|
if (type==TYPE_ARRAY || type==TYPE_DICT) {
|
|
|
|
Ref<PackedDataContainerRef> pdcr = memnew( PackedDataContainerRef );
|
|
Ref<PackedDataContainer> pdc = Ref<PackedDataContainer>((PackedDataContainer*)this);
|
|
|
|
pdcr->from=pdc;
|
|
pdcr->offset=p_ofs;
|
|
return pdcr;
|
|
} else {
|
|
|
|
Variant v;
|
|
Error rerr = decode_variant(v,p_buf + p_ofs,datalen-p_ofs,NULL);
|
|
|
|
if (rerr!=OK) {
|
|
|
|
err=true;
|
|
ERR_FAIL_COND_V(err!=OK,Variant());
|
|
}
|
|
return v;
|
|
}
|
|
|
|
}
|
|
|
|
uint32_t PackedDataContainer::_type_at_ofs(uint32_t p_ofs) const {
|
|
|
|
DVector<uint8_t>::Read rd=data.read();
|
|
const uint8_t *r=&rd[p_ofs];
|
|
uint32_t type = decode_uint32(r);
|
|
|
|
return type;
|
|
};
|
|
|
|
int PackedDataContainer::_size(uint32_t p_ofs) const {
|
|
|
|
DVector<uint8_t>::Read rd=data.read();
|
|
const uint8_t *r=&rd[p_ofs];
|
|
uint32_t type = decode_uint32(r);
|
|
|
|
if (type==TYPE_ARRAY) {
|
|
|
|
uint32_t len = decode_uint32(r+4);
|
|
return len;
|
|
|
|
} else if (type==TYPE_DICT) {
|
|
|
|
uint32_t len = decode_uint32(r+4);
|
|
return len;
|
|
};
|
|
|
|
return -1;
|
|
};
|
|
|
|
Variant PackedDataContainer::_key_at_ofs(uint32_t p_ofs,const Variant& p_key,bool &err) const {
|
|
|
|
DVector<uint8_t>::Read rd=data.read();
|
|
const uint8_t *r=&rd[p_ofs];
|
|
uint32_t type = decode_uint32(r);
|
|
|
|
|
|
if (type==TYPE_ARRAY) {
|
|
|
|
if (p_key.is_num()) {
|
|
|
|
int idx=p_key;
|
|
uint32_t len = decode_uint32(r+4);
|
|
if (idx<0 || idx>=len) {
|
|
err=true;
|
|
return Variant();
|
|
}
|
|
uint32_t ofs = decode_uint32(r+8+4*idx);
|
|
return _get_at_ofs(ofs,rd.ptr(),err);
|
|
|
|
} else {
|
|
err=true;
|
|
return Variant();
|
|
}
|
|
|
|
} else if (type==TYPE_DICT) {
|
|
|
|
uint32_t hash=p_key.hash();
|
|
uint32_t len = decode_uint32(r+4);
|
|
|
|
bool found=false;
|
|
for(int i=0;i<len;i++) {
|
|
uint32_t khash=decode_uint32(r+8+i*12+0);
|
|
if (khash==hash) {
|
|
Variant key = _get_at_ofs(decode_uint32(r+8+i*12+4),rd.ptr(),err);
|
|
if (err)
|
|
return Variant();
|
|
if (key==p_key) {
|
|
//key matches, return value
|
|
return _get_at_ofs(decode_uint32(r+8+i*12+8),rd.ptr(),err);
|
|
}
|
|
found=true;
|
|
} else {
|
|
if (found)
|
|
break;
|
|
}
|
|
}
|
|
|
|
err=true;
|
|
return Variant();
|
|
|
|
} else {
|
|
|
|
err=true;
|
|
return Variant();
|
|
}
|
|
|
|
|
|
}
|
|
|
|
uint32_t PackedDataContainer::_pack(const Variant& p_data, Vector<uint8_t>& tmpdata, Map<String,uint32_t>& string_cache) {
|
|
|
|
switch(p_data.get_type()) {
|
|
|
|
case Variant::STRING: {
|
|
|
|
String s = p_data;
|
|
if (string_cache.has(s)) {
|
|
return string_cache[s];
|
|
}
|
|
|
|
string_cache[s]=tmpdata.size();
|
|
|
|
}; //fallthrough
|
|
case Variant::NIL:
|
|
case Variant::BOOL:
|
|
case Variant::INT:
|
|
case Variant::REAL:
|
|
case Variant::VECTOR2:
|
|
case Variant::RECT2:
|
|
case Variant::VECTOR3:
|
|
case Variant::MATRIX32:
|
|
case Variant::PLANE:
|
|
case Variant::QUAT:
|
|
case Variant::_AABB:
|
|
case Variant::MATRIX3:
|
|
case Variant::TRANSFORM:
|
|
case Variant::IMAGE:
|
|
case Variant::INPUT_EVENT:
|
|
case Variant::RAW_ARRAY:
|
|
case Variant::INT_ARRAY:
|
|
case Variant::REAL_ARRAY:
|
|
case Variant::STRING_ARRAY:
|
|
case Variant::VECTOR2_ARRAY:
|
|
case Variant::VECTOR3_ARRAY:
|
|
case Variant::COLOR_ARRAY:
|
|
case Variant::NODE_PATH: {
|
|
|
|
uint32_t pos = tmpdata.size();
|
|
int len;
|
|
encode_variant(p_data,NULL,len);
|
|
tmpdata.resize(tmpdata.size()+len);
|
|
encode_variant(p_data,&tmpdata[pos],len);
|
|
return pos;
|
|
|
|
} break;
|
|
// misc types
|
|
case Variant::_RID:
|
|
case Variant::OBJECT: {
|
|
|
|
return _pack(Variant(),tmpdata,string_cache);
|
|
} break;
|
|
case Variant::DICTIONARY: {
|
|
|
|
Dictionary d=p_data;
|
|
//size is known, use sort
|
|
uint32_t pos = tmpdata.size();
|
|
int len=d.size();
|
|
tmpdata.resize(tmpdata.size()+len*12+8);
|
|
encode_uint32(TYPE_DICT,&tmpdata[pos+0]);
|
|
encode_uint32(len,&tmpdata[pos+4]);
|
|
|
|
List<Variant> keys;
|
|
d.get_key_list(&keys);
|
|
List<DictKey> sortk;
|
|
|
|
for(List<Variant>::Element *E=keys.front();E;E=E->next()) {
|
|
|
|
DictKey dk;
|
|
dk.hash=E->get().hash();
|
|
dk.key=E->get();
|
|
sortk.push_back(dk);
|
|
}
|
|
|
|
sortk.sort();
|
|
|
|
int idx=0;
|
|
for(List<DictKey>::Element *E=sortk.front();E;E=E->next()) {
|
|
|
|
encode_uint32(E->get().hash,&tmpdata[pos+8+idx*12+0]);
|
|
uint32_t ofs = _pack(E->get().key,tmpdata,string_cache);
|
|
encode_uint32(ofs,&tmpdata[pos+8+idx*12+4]);
|
|
ofs = _pack(d[E->get().key],tmpdata,string_cache);
|
|
encode_uint32(ofs,&tmpdata[pos+8+idx*12+8]);
|
|
idx++;
|
|
}
|
|
|
|
return pos;
|
|
|
|
|
|
|
|
} break;
|
|
case Variant::ARRAY: {
|
|
|
|
Array a=p_data;
|
|
//size is known, use sort
|
|
uint32_t pos = tmpdata.size();
|
|
int len=a.size();
|
|
tmpdata.resize(tmpdata.size()+len*4+8);
|
|
encode_uint32(TYPE_ARRAY,&tmpdata[pos+0]);
|
|
encode_uint32(len,&tmpdata[pos+4]);
|
|
|
|
for(int i=0;i<len;i++) {
|
|
|
|
uint32_t ofs = _pack(a[i],tmpdata,string_cache);
|
|
encode_uint32(ofs,&tmpdata[pos+8+i*4]);
|
|
}
|
|
|
|
return pos;
|
|
|
|
|
|
} break;
|
|
|
|
default: {}
|
|
}
|
|
|
|
return OK;
|
|
}
|
|
|
|
Error PackedDataContainer::pack(const Variant& p_data) {
|
|
|
|
Vector<uint8_t> tmpdata;
|
|
Map<String,uint32_t> string_cache;
|
|
_pack(p_data,tmpdata,string_cache);
|
|
datalen=tmpdata.size();
|
|
data.resize(tmpdata.size());
|
|
DVector<uint8_t>::Write w = data.write();
|
|
copymem(w.ptr(),tmpdata.ptr(),tmpdata.size());
|
|
|
|
return OK;
|
|
}
|
|
|
|
|
|
void PackedDataContainer::_set_data(const DVector<uint8_t>& p_data) {
|
|
|
|
data=p_data;
|
|
datalen=data.size();
|
|
|
|
}
|
|
|
|
DVector<uint8_t> PackedDataContainer::_get_data() const {
|
|
return data;
|
|
}
|
|
|
|
|
|
Variant PackedDataContainer::_iter_init(const Array& p_iter) {
|
|
|
|
|
|
return _iter_init_ofs(p_iter,0);
|
|
}
|
|
|
|
Variant PackedDataContainer::_iter_next(const Array& p_iter){
|
|
|
|
return _iter_next_ofs(p_iter,0);
|
|
|
|
}
|
|
Variant PackedDataContainer::_iter_get(const Variant& p_iter){
|
|
|
|
return _iter_get_ofs(p_iter,0);
|
|
}
|
|
|
|
|
|
void PackedDataContainer::_bind_methods() {
|
|
|
|
ObjectTypeDB::bind_method(_MD("_set_data"),&PackedDataContainer::_set_data);
|
|
ObjectTypeDB::bind_method(_MD("_get_data"),&PackedDataContainer::_get_data);
|
|
ObjectTypeDB::bind_method(_MD("_iter_init"),&PackedDataContainer::_iter_init);
|
|
ObjectTypeDB::bind_method(_MD("_iter_get"),&PackedDataContainer::_iter_get);
|
|
ObjectTypeDB::bind_method(_MD("_iter_next"),&PackedDataContainer::_iter_next);
|
|
ObjectTypeDB::bind_method(_MD("pack:Error","value"),&PackedDataContainer::pack);
|
|
ObjectTypeDB::bind_method(_MD("size"),&PackedDataContainer::size);
|
|
|
|
ADD_PROPERTY( PropertyInfo(Variant::RAW_ARRAY,"__data__"),_SCS("_set_data"),_SCS("_get_data"));
|
|
}
|
|
|
|
|
|
PackedDataContainer::PackedDataContainer() {
|
|
|
|
datalen=0;
|
|
}
|
|
|
|
|
|
//////////////////
|
|
|
|
|
|
Variant PackedDataContainerRef::_iter_init(const Array& p_iter) {
|
|
|
|
|
|
return from->_iter_init_ofs(p_iter,offset);
|
|
}
|
|
|
|
Variant PackedDataContainerRef::_iter_next(const Array& p_iter){
|
|
|
|
return from->_iter_next_ofs(p_iter,offset);
|
|
|
|
}
|
|
Variant PackedDataContainerRef::_iter_get(const Variant& p_iter){
|
|
|
|
return from->_iter_get_ofs(p_iter,offset);
|
|
}
|
|
|
|
bool PackedDataContainerRef::_is_dictionary() const {
|
|
|
|
return from->_type_at_ofs(offset) == PackedDataContainer::TYPE_DICT;
|
|
};
|
|
|
|
void PackedDataContainerRef::_bind_methods() {
|
|
|
|
ObjectTypeDB::bind_method(_MD("size"),&PackedDataContainerRef::size);
|
|
ObjectTypeDB::bind_method(_MD("_iter_init"),&PackedDataContainerRef::_iter_init);
|
|
ObjectTypeDB::bind_method(_MD("_iter_get"),&PackedDataContainerRef::_iter_get);
|
|
ObjectTypeDB::bind_method(_MD("_iter_next"),&PackedDataContainerRef::_iter_next);
|
|
ObjectTypeDB::bind_method(_MD("_is_dictionary"),&PackedDataContainerRef::_is_dictionary);
|
|
}
|
|
|
|
|
|
Variant PackedDataContainerRef::getvar(const Variant& p_key, bool *r_valid) const {
|
|
|
|
bool err=false;
|
|
Variant ret = from->_key_at_ofs(offset,p_key,err);
|
|
if (r_valid)
|
|
*r_valid=!err;
|
|
return ret;
|
|
}
|
|
|
|
int PackedDataContainerRef::size() const {
|
|
|
|
return from->_size(offset);
|
|
};
|
|
|
|
PackedDataContainerRef::PackedDataContainerRef() {
|
|
|
|
}
|