godot/core/io/resource_format_binary.cpp

/*************************************************************************/
/*  resource_format_binary.cpp                                           */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                    http://www.godotengine.org                         */
/*************************************************************************/
/* Copyright (c) 2007-2017 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 "version.h"
#include "resource_format_binary.h"
#include "globals.h"
#include "io/file_access_compressed.h"
#include "io/marshalls.h"
#include "os/dir_access.h"
//#define print_bl(m_what) print_line(m_what)
#define print_bl(m_what)


enum {

	//numbering must be different from variant, in case new variant types are added (variant must be always contiguous for jumptable optimization)
	VARIANT_NIL=1,
	VARIANT_BOOL=2,
	VARIANT_INT=3,
	VARIANT_REAL=4,
	VARIANT_STRING=5,
	VARIANT_VECTOR2=10,
	VARIANT_RECT2=11,
	VARIANT_VECTOR3=12,
	VARIANT_PLANE=13,
	VARIANT_QUAT=14,
	VARIANT_AABB=15,
	VARIANT_MATRIX3=16,
	VARIANT_TRANSFORM=17,
	VARIANT_MATRIX32=18,
	VARIANT_COLOR=20,
	VARIANT_IMAGE=21,
	VARIANT_NODE_PATH=22,
	VARIANT_RID=23,
	VARIANT_OBJECT=24,
	VARIANT_INPUT_EVENT=25,
	VARIANT_DICTIONARY=26,
	VARIANT_ARRAY=30,
	VARIANT_RAW_ARRAY=31,
	VARIANT_INT_ARRAY=32,
	VARIANT_REAL_ARRAY=33,
	VARIANT_STRING_ARRAY=34,
	VARIANT_VECTOR3_ARRAY=35,
	VARIANT_COLOR_ARRAY=36,
	VARIANT_VECTOR2_ARRAY=37,
	VARIANT_INT64=40,
	VARIANT_DOUBLE=41,

	IMAGE_ENCODING_EMPTY=0,
	IMAGE_ENCODING_RAW=1,
	IMAGE_ENCODING_LOSSLESS=2,
	IMAGE_ENCODING_LOSSY=3,

	OBJECT_EMPTY=0,
	OBJECT_EXTERNAL_RESOURCE=1,
	OBJECT_INTERNAL_RESOURCE=2,
	OBJECT_EXTERNAL_RESOURCE_INDEX=3,
	//version 2: added 64 bits support for float and int
	FORMAT_VERSION=2,
	FORMAT_VERSION_CAN_RENAME_DEPS=1


};


void ResourceInteractiveLoaderBinary::_advance_padding(uint32_t p_len) {

	uint32_t extra = 4-(p_len%4);
	if (extra<4) {
		for(uint32_t i=0;i<extra;i++)
			f->get_8(); //pad to 32
	}

}


StringName ResourceInteractiveLoaderBinary::_get_string() {

	uint32_t id = f->get_32();
	if (id&0x80000000) {
		uint32_t len = id&0x7FFFFFFF;
		if (len>str_buf.size()) {
			str_buf.resize(len);
		}
		if (len==0)
			return StringName();
		f->get_buffer((uint8_t*)&str_buf[0],len);
		String s;
		s.parse_utf8(&str_buf[0]);
		return s;
	}

	return string_map[id];

}

Error ResourceInteractiveLoaderBinary::parse_variant(Variant& r_v)  {


	uint32_t type = f->get_32();
	print_bl("find property of type: "+itos(type));


	switch(type) {

		case VARIANT_NIL: {

			r_v=Variant();
		} break;
		case VARIANT_BOOL: {

			r_v=bool(f->get_32());
		} break;
		case VARIANT_INT: {

			r_v=int(f->get_32());
		} break;
		case VARIANT_INT64: {

			r_v=int64_t(f->get_64());
		} break;
		case VARIANT_REAL: {

			r_v=f->get_real();
		} break;
		case VARIANT_DOUBLE: {

			r_v=f->get_double();
		} break;
		case VARIANT_STRING: {

			r_v=get_unicode_string();
		} break;
		case VARIANT_VECTOR2: {

			Vector2 v;
			v.x=f->get_real();
			v.y=f->get_real();
			r_v=v;

		} break;
		case VARIANT_RECT2: {

			Rect2 v;
			v.pos.x=f->get_real();
			v.pos.y=f->get_real();
			v.size.x=f->get_real();
			v.size.y=f->get_real();
			r_v=v;

		} break;
		case VARIANT_VECTOR3: {

			Vector3 v;
			v.x=f->get_real();
			v.y=f->get_real();
			v.z=f->get_real();
			r_v=v;
		} break;
		case VARIANT_PLANE: {

			Plane v;
			v.normal.x=f->get_real();
			v.normal.y=f->get_real();
			v.normal.z=f->get_real();
			v.d=f->get_real();
			r_v=v;
		} break;
		case VARIANT_QUAT: {
			Quat v;
			v.x=f->get_real();
			v.y=f->get_real();
			v.z=f->get_real();
			v.w=f->get_real();
			r_v=v;

		} break;
		case VARIANT_AABB: {

			Rect3 v;
			v.pos.x=f->get_real();
			v.pos.y=f->get_real();
			v.pos.z=f->get_real();
			v.size.x=f->get_real();
			v.size.y=f->get_real();
			v.size.z=f->get_real();
			r_v=v;

		} break;
		case VARIANT_MATRIX32: {

			Transform2D v;
			v.elements[0].x=f->get_real();
			v.elements[0].y=f->get_real();
			v.elements[1].x=f->get_real();
			v.elements[1].y=f->get_real();
			v.elements[2].x=f->get_real();
			v.elements[2].y=f->get_real();
			r_v=v;

		} break;
		case VARIANT_MATRIX3: {

			Basis v;
			v.elements[0].x=f->get_real();
			v.elements[0].y=f->get_real();
			v.elements[0].z=f->get_real();
			v.elements[1].x=f->get_real();
			v.elements[1].y=f->get_real();
			v.elements[1].z=f->get_real();
			v.elements[2].x=f->get_real();
			v.elements[2].y=f->get_real();
			v.elements[2].z=f->get_real();
			r_v=v;

		} break;
		case VARIANT_TRANSFORM: {

			Transform v;
			v.basis.elements[0].x=f->get_real();
			v.basis.elements[0].y=f->get_real();
			v.basis.elements[0].z=f->get_real();
			v.basis.elements[1].x=f->get_real();
			v.basis.elements[1].y=f->get_real();
			v.basis.elements[1].z=f->get_real();
			v.basis.elements[2].x=f->get_real();
			v.basis.elements[2].y=f->get_real();
			v.basis.elements[2].z=f->get_real();
			v.origin.x=f->get_real();
			v.origin.y=f->get_real();
			v.origin.z=f->get_real();
			r_v=v;
		} break;
		case VARIANT_COLOR: {

			Color v;
			v.r=f->get_real();
			v.g=f->get_real();
			v.b=f->get_real();
			v.a=f->get_real();
			r_v=v;

		} break;
		case VARIANT_IMAGE: {


			uint32_t encoding = f->get_32();
			if (encoding==IMAGE_ENCODING_EMPTY) {
				r_v=Variant();
				break;
			} else if (encoding==IMAGE_ENCODING_RAW) {
				uint32_t width = f->get_32();
				uint32_t height = f->get_32();
				uint32_t mipmaps = f->get_32();
				uint32_t format = f->get_32();
				const uint32_t format_version_shift=24;
				const uint32_t format_version_mask=format_version_shift-1;

				uint32_t format_version = format>>format_version_shift;

				const uint32_t current_version = 0;
				if (format_version>current_version) {

					ERR_PRINT("Format version for encoded binary image is too new");
					return ERR_PARSE_ERROR;
				}


				Image::Format fmt=Image::Format(format&format_version_mask); //if format changes, we can add a compatibility bit on top

				uint32_t datalen = f->get_32();
				print_line("image format: "+String(Image::get_format_name(fmt))+" datalen "+itos(datalen));

				PoolVector<uint8_t> imgdata;
				imgdata.resize(datalen);
				PoolVector<uint8_t>::Write w = imgdata.write();
				f->get_buffer(w.ptr(),datalen);
				_advance_padding(datalen);
				w=PoolVector<uint8_t>::Write();

#ifdef TOOLS_ENABLED
//compatibility
				int correct_size = Image::get_image_data_size(width,height,fmt,mipmaps?-1:0);
				if (correct_size < datalen) {
					WARN_PRINT("Image data was too large, shrinking for compatibility")
					imgdata.resize(correct_size);
				}
#endif
				r_v=Image(width,height,mipmaps,fmt,imgdata);

			} else {
				//compressed
				PoolVector<uint8_t> data;
				data.resize(f->get_32());
				PoolVector<uint8_t>::Write w = data.write();
				f->get_buffer(w.ptr(),data.size());
				w = PoolVector<uint8_t>::Write();

				Image img;

				if (encoding==IMAGE_ENCODING_LOSSY && Image::lossy_unpacker) {

					img = Image::lossy_unpacker(data);
				} else if (encoding==IMAGE_ENCODING_LOSSLESS && Image::lossless_unpacker) {

					img = Image::lossless_unpacker(data);
				}
				_advance_padding(data.size());


				r_v=img;

			}

		} break;
		case VARIANT_NODE_PATH: {

			Vector<StringName> names;
			Vector<StringName> subnames;
			StringName property;
			bool absolute;

			int name_count = f->get_16();
			uint32_t subname_count = f->get_16();
			absolute=subname_count&0x8000;
			subname_count&=0x7FFF;


			for(int i=0;i<name_count;i++)
				names.push_back(_get_string());
			for(uint32_t i=0;i<subname_count;i++)
				subnames.push_back(_get_string());
			property=_get_string();

			NodePath np = NodePath(names,subnames,absolute,property);
			//print_line("got path: "+String(np));

			r_v=np;

		} break;
		case VARIANT_RID: {

			r_v=f->get_32();
		} break;
		case VARIANT_OBJECT: {

			uint32_t type=f->get_32();

			switch(type) {

				case OBJECT_EMPTY: {
					//do none

				} break;
				case OBJECT_INTERNAL_RESOURCE: {
					uint32_t index=f->get_32();
					String path = res_path+"::"+itos(index);
					RES res = ResourceLoader::load(path);
					if (res.is_null()) {
						WARN_PRINT(String("Couldn't load resource: "+path).utf8().get_data());
					}
					r_v=res;

				} break;
				case OBJECT_EXTERNAL_RESOURCE: {
					//old file format, still around for compatibility

					String type = get_unicode_string();
					String path = get_unicode_string();

					if (path.find("://")==-1 && path.is_rel_path()) {
						// path is relative to file being loaded, so convert to a resource path
						path=GlobalConfig::get_singleton()->localize_path(res_path.get_base_dir().plus_file(path));

					}

					if (remaps.find(path)) {
						path=remaps[path];
					}

					RES res=ResourceLoader::load(path,type);

					if (res.is_null()) {
						WARN_PRINT(String("Couldn't load resource: "+path).utf8().get_data());
					}
					r_v=res;

				} break;
				case OBJECT_EXTERNAL_RESOURCE_INDEX: {
					//new file format, just refers to an index in the external list
					uint32_t erindex = f->get_32();

					if (erindex>=external_resources.size()) {
						WARN_PRINT("Broken external resource! (index out of size");
						r_v=Variant();
					} else {

						String type = external_resources[erindex].type;
						String path = external_resources[erindex].path;

						if (path.find("://")==-1 && path.is_rel_path()) {
							// path is relative to file being loaded, so convert to a resource path
							path=GlobalConfig::get_singleton()->localize_path(res_path.get_base_dir().plus_file(path));

						}

						RES res=ResourceLoader::load(path,type);

						if (res.is_null()) {
							WARN_PRINT(String("Couldn't load resource: "+path).utf8().get_data());
						}
						r_v=res;
					}


				} break;
				default: {

					ERR_FAIL_V(ERR_FILE_CORRUPT);
				} break;
			}

		} break;
		case VARIANT_INPUT_EVENT: {

			InputEvent ev;
			ev.type=f->get_32(); //will only work for null though.
			r_v=ev;

		} break;
		case VARIANT_DICTIONARY: {

			uint32_t len=f->get_32();
			Dictionary d; //last bit means shared
			len&=0x7FFFFFFF;
			for(uint32_t i=0;i<len;i++) {
				Variant key;
				Error err = parse_variant(key);
				ERR_FAIL_COND_V(err,ERR_FILE_CORRUPT);
				Variant value;
				err = parse_variant(value);
				ERR_FAIL_COND_V(err,ERR_FILE_CORRUPT);
				d[key]=value;
			}
			r_v=d;
		} break;
		case VARIANT_ARRAY: {

			uint32_t len=f->get_32();
			Array a; //last bit means shared
			len&=0x7FFFFFFF;
			a.resize(len);
			for(uint32_t i=0;i<len;i++) {
				Variant val;
				Error err = parse_variant(val);
				ERR_FAIL_COND_V(err,ERR_FILE_CORRUPT);
				a[i]=val;
			}
			r_v=a;

		} break;
		case VARIANT_RAW_ARRAY: {

			uint32_t len = f->get_32();

			PoolVector<uint8_t> array;
			array.resize(len);
			PoolVector<uint8_t>::Write w = array.write();
			f->get_buffer(w.ptr(),len);
			_advance_padding(len);
			w=PoolVector<uint8_t>::Write();
			r_v=array;

		} break;
		case VARIANT_INT_ARRAY: {

			uint32_t len = f->get_32();

			PoolVector<int> array;
			array.resize(len);
			PoolVector<int>::Write w = array.write();
			f->get_buffer((uint8_t*)w.ptr(),len*4);
#ifdef BIG_ENDIAN_ENABLED
			{
				uint32_t *ptr=(uint32_t*)w.ptr();
				for(int i=0;i<len;i++) {

					ptr[i]=BSWAP32(ptr[i]);
				}
			}

#endif
			w=PoolVector<int>::Write();
			r_v=array;
		} break;
		case VARIANT_REAL_ARRAY: {

			uint32_t len = f->get_32();

			PoolVector<real_t> array;
			array.resize(len);
			PoolVector<real_t>::Write w = array.write();
			f->get_buffer((uint8_t*)w.ptr(),len*sizeof(real_t));
#ifdef BIG_ENDIAN_ENABLED
			{
				uint32_t *ptr=(uint32_t*)w.ptr();
				for(int i=0;i<len;i++) {

					ptr[i]=BSWAP32(ptr[i]);
				}
			}

#endif

			w=PoolVector<real_t>::Write();
			r_v=array;
		} break;
		case VARIANT_STRING_ARRAY: {

			uint32_t len = f->get_32();
			PoolVector<String> array;
			array.resize(len);
			PoolVector<String>::Write w = array.write();
			for(uint32_t i=0;i<len;i++)
				w[i]=get_unicode_string();
			w=PoolVector<String>::Write();
			r_v=array;


		} break;
		case VARIANT_VECTOR2_ARRAY: {

			uint32_t len = f->get_32();

			PoolVector<Vector2> array;
			array.resize(len);
			PoolVector<Vector2>::Write w = array.write();
			if (sizeof(Vector2)==8) {
				f->get_buffer((uint8_t*)w.ptr(),len*sizeof(real_t)*2);
#ifdef BIG_ENDIAN_ENABLED
			{
				uint32_t *ptr=(uint32_t*)w.ptr();
				for(int i=0;i<len*2;i++) {

					ptr[i]=BSWAP32(ptr[i]);
				}
			}

#endif

			} else {
				ERR_EXPLAIN("Vector2 size is NOT 8!");
				ERR_FAIL_V(ERR_UNAVAILABLE);
			}
			w=PoolVector<Vector2>::Write();
			r_v=array;

		} break;
		case VARIANT_VECTOR3_ARRAY: {

			uint32_t len = f->get_32();

			PoolVector<Vector3> array;
			array.resize(len);
			PoolVector<Vector3>::Write w = array.write();
			if (sizeof(Vector3)==12) {
				f->get_buffer((uint8_t*)w.ptr(),len*sizeof(real_t)*3);
#ifdef BIG_ENDIAN_ENABLED
				{
					uint32_t *ptr=(uint32_t*)w.ptr();
					for(int i=0;i<len*3;i++) {

						ptr[i]=BSWAP32(ptr[i]);
					}
				}

#endif

			} else {
				ERR_EXPLAIN("Vector3 size is NOT 12!");
				ERR_FAIL_V(ERR_UNAVAILABLE);
			}
			w=PoolVector<Vector3>::Write();
			r_v=array;

		} break;
		case VARIANT_COLOR_ARRAY: {

			uint32_t len = f->get_32();

			PoolVector<Color> array;
			array.resize(len);
			PoolVector<Color>::Write w = array.write();
			if (sizeof(Color)==16) {
				f->get_buffer((uint8_t*)w.ptr(),len*sizeof(real_t)*4);
#ifdef BIG_ENDIAN_ENABLED
			{
				uint32_t *ptr=(uint32_t*)w.ptr();
				for(int i=0;i<len*4;i++) {

					ptr[i]=BSWAP32(ptr[i]);
				}
			}

#endif

			} else {
				ERR_EXPLAIN("Color size is NOT 16!");
				ERR_FAIL_V(ERR_UNAVAILABLE);
			}
			w=PoolVector<Color>::Write();
			r_v=array;
		} break;

		default: {
			ERR_FAIL_V(ERR_FILE_CORRUPT);
		} break;
	}



	return OK; //never reach anyway

}


void ResourceInteractiveLoaderBinary::set_local_path(const String& p_local_path) {

	res_path=p_local_path;
}

Ref<Resource> ResourceInteractiveLoaderBinary::get_resource(){


	return resource;
}
Error ResourceInteractiveLoaderBinary::poll(){

	if (error!=OK)
		return error;


	int s = stage;

	if (s<external_resources.size()) {

		String path = external_resources[s].path;

		print_line("load external res: "+path);
		if (remaps.has(path)) {
			path=remaps[path];
		}
		RES res = ResourceLoader::load(path,external_resources[s].type);
		if (res.is_null()) {

			if (!ResourceLoader::get_abort_on_missing_resources()) {

				ResourceLoader::notify_dependency_error(local_path,path,external_resources[s].type);
			} else {

				error=ERR_FILE_MISSING_DEPENDENCIES;
				ERR_EXPLAIN("Can't load dependency: "+path);
				ERR_FAIL_V(error);
			}

		} else {
			resource_cache.push_back(res);
		}

		stage++;
		return error;
	}

	s-=external_resources.size();


	if (s>=internal_resources.size()) {

		error=ERR_BUG;
		ERR_FAIL_COND_V(s>=internal_resources.size(),error);
	}

	bool main = s==(internal_resources.size()-1);

	//maybe it is loaded already
	String path;
	int subindex=0;



	if (!main) {

		path=internal_resources[s].path;
		if (path.begins_with("local://")) {
			path=path.replace_first("local://","");
			subindex = path.to_int();
			path=res_path+"::"+path;
		}



		if (ResourceCache::has(path)) {
			//already loaded, don't do anything
			stage++;
			error=OK;
			return error;
		}
	} else {

		if (!ResourceCache::has(res_path))
			path=res_path;
	}

	uint64_t offset = internal_resources[s].offset;

	f->seek(offset);

	String t = get_unicode_string();

//	print_line("loading resource of type "+t+" path is "+path);

	Object *obj = ClassDB::instance(t);
	if (!obj) {
		error=ERR_FILE_CORRUPT;
		ERR_EXPLAIN(local_path+":Resource of unrecognized type in file: "+t);
	}
	ERR_FAIL_COND_V(!obj,ERR_FILE_CORRUPT);

	Resource *r = obj->cast_to<Resource>();
	if (!r) {
		error=ERR_FILE_CORRUPT;
		memdelete(obj); //bye
		ERR_EXPLAIN(local_path+":Resoucre type in resource field not a resource, type is: "+obj->get_class());
		ERR_FAIL_COND_V(!r,ERR_FILE_CORRUPT);
	}

	RES res = RES( r );

	r->set_path(path);
	r->set_subindex(subindex);

	int pc = f->get_32();

	//set properties

	for(int i=0;i<pc;i++) {

		StringName name = _get_string();
		if (name==StringName()) {
			error=ERR_FILE_CORRUPT;
			ERR_FAIL_V(ERR_FILE_CORRUPT);
		}

		Variant value;

		error = parse_variant(value);
		if (error)
			return error;

		res->set(name,value);
	}
#ifdef TOOLS_ENABLED
	res->set_edited(false);
#endif
	stage++;

	resource_cache.push_back(res);

	if (main) {

		f->close();
		resource=res;
		error=ERR_FILE_EOF;

	} else {
		error=OK;
	}

	return OK;

}
int ResourceInteractiveLoaderBinary::get_stage() const{

	return stage;
}
int ResourceInteractiveLoaderBinary::get_stage_count() const {

	return external_resources.size()+internal_resources.size();
}


static void save_ustring(FileAccess* f,const String& p_string) {


	CharString utf8 = p_string.utf8();
	f->store_32(utf8.length()+1);
	f->store_buffer((const uint8_t*)utf8.get_data(),utf8.length()+1);
}


static String get_ustring(FileAccess *f) {

	int len = f->get_32();
	Vector<char> str_buf;
	str_buf.resize(len);
	f->get_buffer((uint8_t*)&str_buf[0],len);
	String s;
	s.parse_utf8(&str_buf[0]);
	return s;
}

String ResourceInteractiveLoaderBinary::get_unicode_string() {

	int len = f->get_32();
	if (len>str_buf.size()) {
		str_buf.resize(len);
	}
	if (len==0)
		return String();
	f->get_buffer((uint8_t*)&str_buf[0],len);
	String s;
	s.parse_utf8(&str_buf[0]);
	return s;
}



void ResourceInteractiveLoaderBinary::get_dependencies(FileAccess *p_f,List<String> *p_dependencies,bool p_add_types) {

	open(p_f);
	if (error)
		return;

	for(int i=0;i<external_resources.size();i++) {

		String dep=external_resources[i].path;

		if (p_add_types && external_resources[i].type!=String()) {
			dep+="::"+external_resources[i].type;
		}

		p_dependencies->push_back(dep);
	}

}




void ResourceInteractiveLoaderBinary::open(FileAccess *p_f) {


	error=OK;

	f=p_f;
	uint8_t header[4];
	f->get_buffer(header,4);
	if (header[0]=='R' && header[1]=='S' && header[2]=='C' && header[3]=='C') {
		//compressed
		FileAccessCompressed *fac = memnew( FileAccessCompressed );
		fac->open_after_magic(f);
		f=fac;

	} else if (header[0]!='R' || header[1]!='S' || header[2]!='R' || header[3]!='C') {
		//not normal

		error=ERR_FILE_UNRECOGNIZED;
		ERR_EXPLAIN("Unrecognized binary resource file: "+local_path);
		ERR_FAIL();
	}

	bool big_endian = f->get_32();
#ifdef BIG_ENDIAN_ENABLED
	endian_swap = !big_endian;
#else
	bool endian_swap = big_endian;
#endif

	bool use_real64 = f->get_32();

	f->set_endian_swap(big_endian!=0); //read big endian if saved as big endian

	uint32_t ver_major=f->get_32();
	uint32_t ver_minor=f->get_32();
	uint32_t ver_format=f->get_32();

	print_bl("big endian: "+itos(big_endian));
	print_bl("endian swap: "+itos(endian_swap));
	print_bl("real64: "+itos(use_real64));
	print_bl("major: "+itos(ver_major));
	print_bl("minor: "+itos(ver_minor));
	print_bl("format: "+itos(ver_format));

	if (ver_format>FORMAT_VERSION ||  ver_major>VERSION_MAJOR) {

		f->close();
		ERR_EXPLAIN("File Format '"+itos(FORMAT_VERSION)+"."+itos(ver_major)+"."+itos(ver_minor)+"' is too new! Please upgrade to a a new engine version: "+local_path);
		ERR_FAIL();

	}

	type=get_unicode_string();

	print_bl("type: "+type);

	importmd_ofs = f->get_64();
	for(int i=0;i<14;i++)
		f->get_32(); //skip a few reserved fields

	uint32_t string_table_size=f->get_32();
	string_map.resize(string_table_size);
	for(uint32_t i=0;i<string_table_size;i++) {

		StringName s = get_unicode_string();
		string_map[i]=s;
	}

	print_bl("strings: "+itos(string_table_size));

	uint32_t ext_resources_size=f->get_32();
	for(uint32_t i=0;i<ext_resources_size;i++) {

		ExtResoucre er;
		er.type=get_unicode_string();
		er.path=get_unicode_string();
		external_resources.push_back(er);

	}

	//see if the exporter has different set of external resources for more efficient loading
	/*
	String preload_depts = "deps/"+res_path.md5_text();
	if (Globals::get_singleton()->has(preload_depts)) {
		external_resources.clear();
		//ignore external resources and use these
		NodePath depts=Globals::get_singleton()->get(preload_depts);
		external_resources.resize(depts.get_name_count());
		for(int i=0;i<depts.get_name_count();i++) {
			external_resources[i].path=depts.get_name(i);
		}
		print_line(res_path+" - EXTERNAL RESOURCES: "+itos(external_resources.size()));
	}*/

	print_bl("ext resources: "+itos(ext_resources_size));
	uint32_t int_resources_size=f->get_32();

	for(uint32_t i=0;i<int_resources_size;i++) {

		IntResoucre ir;
		ir.path=get_unicode_string();
		ir.offset=f->get_64();
		internal_resources.push_back(ir);
	}

	print_bl("int resources: "+itos(int_resources_size));


	if (f->eof_reached()) {

		error=ERR_FILE_CORRUPT;
		ERR_EXPLAIN("Premature End Of File: "+local_path);
		ERR_FAIL();
	}

}

String ResourceInteractiveLoaderBinary::recognize(FileAccess *p_f) {

	error=OK;


	f=p_f;
	uint8_t header[4];
	f->get_buffer(header,4);
	if (header[0]=='R' && header[1]=='S' && header[2]=='C' && header[3]=='C') {
		//compressed
		FileAccessCompressed *fac = memnew( FileAccessCompressed );
		fac->open_after_magic(f);
		f=fac;

	} else if (header[0]!='R' || header[1]!='S' || header[2]!='R' || header[3]!='C') {
		//not normal
		error=ERR_FILE_UNRECOGNIZED;
		return "";
	}

	bool big_endian = f->get_32();
#ifdef BIG_ENDIAN_ENABLED
	endian_swap = !big_endian;
#else
	bool endian_swap = big_endian;
#endif

	bool use_real64 = f->get_32();

	f->set_endian_swap(big_endian!=0); //read big endian if saved as big endian

	uint32_t ver_major=f->get_32();
	uint32_t ver_minor=f->get_32();
	uint32_t ver_format=f->get_32();

	if (ver_format>FORMAT_VERSION ||  ver_major>VERSION_MAJOR) {

		f->close();
		return "";
	}

	String type=get_unicode_string();

	return type;
}

ResourceInteractiveLoaderBinary::ResourceInteractiveLoaderBinary() {

	f=NULL;
	stage=0;
	endian_swap=false;
	use_real64=false;
	error=OK;
}

ResourceInteractiveLoaderBinary::~ResourceInteractiveLoaderBinary() {

	if (f)
		memdelete(f);
}


Ref<ResourceInteractiveLoader> ResourceFormatLoaderBinary::load_interactive(const String &p_path, Error *r_error) {

	if (r_error)
		*r_error=ERR_FILE_CANT_OPEN;

	Error err;
	FileAccess *f = FileAccess::open(p_path,FileAccess::READ,&err);

	if (err!=OK) {

		ERR_FAIL_COND_V(err!=OK,Ref<ResourceInteractiveLoader>());
	}

	Ref<ResourceInteractiveLoaderBinary> ria = memnew( ResourceInteractiveLoaderBinary );
	ria->local_path=GlobalConfig::get_singleton()->localize_path(p_path);
	ria->res_path=ria->local_path;
	//ria->set_local_path( Globals::get_singleton()->localize_path(p_path) );
	ria->open(f);


	return ria;
}

void ResourceFormatLoaderBinary::get_recognized_extensions_for_type(const String& p_type,List<String> *p_extensions) const {

	if (p_type=="") {
		get_recognized_extensions(p_extensions);
		return;
	}

	List<String> extensions;
	ClassDB::get_extensions_for_type(p_type,&extensions);

	extensions.sort();

	for(List<String>::Element *E=extensions.front();E;E=E->next()) {
		String ext = E->get().to_lower();
		p_extensions->push_back(ext);
	}

}
void ResourceFormatLoaderBinary::get_recognized_extensions(List<String> *p_extensions) const{

	List<String> extensions;
	ClassDB::get_resource_base_extensions(&extensions);
	extensions.sort();

	for(List<String>::Element *E=extensions.front();E;E=E->next()) {
		String ext = E->get().to_lower();
		p_extensions->push_back(ext);
	}

}

bool ResourceFormatLoaderBinary::handles_type(const String& p_type) const{


	return true; //handles all
}


void ResourceFormatLoaderBinary::get_dependencies(const String& p_path,List<String> *p_dependencies,bool p_add_types) {

	FileAccess *f = FileAccess::open(p_path,FileAccess::READ);
	ERR_FAIL_COND(!f);

	Ref<ResourceInteractiveLoaderBinary> ria = memnew( ResourceInteractiveLoaderBinary );
	ria->local_path=GlobalConfig::get_singleton()->localize_path(p_path);
	ria->res_path=ria->local_path;
	//ria->set_local_path( Globals::get_singleton()->localize_path(p_path) );
	ria->get_dependencies(f,p_dependencies,p_add_types);
}

Error ResourceFormatLoaderBinary::rename_dependencies(const String &p_path,const Map<String,String>& p_map) {


	//Error error=OK;


	FileAccess *f=FileAccess::open(p_path,FileAccess::READ);
	ERR_FAIL_COND_V(!f,ERR_CANT_OPEN);

	FileAccess* fw=NULL;//=FileAccess::open(p_path+".depren");

	String local_path=p_path.get_base_dir();

	uint8_t header[4];
	f->get_buffer(header,4);
	if (header[0]=='R' && header[1]=='S' && header[2]=='C' && header[3]=='C') {
		//compressed
		FileAccessCompressed *fac = memnew( FileAccessCompressed );
		fac->open_after_magic(f);
		f=fac;

		FileAccessCompressed *facw = memnew( FileAccessCompressed );
		facw->configure("RSCC");
		Error err = facw->_open(p_path+".depren",FileAccess::WRITE);
		if (err) {
			memdelete(fac);
			memdelete(facw);
			ERR_FAIL_COND_V(err,ERR_FILE_CORRUPT);
		}

		fw=facw;


	} else if (header[0]!='R' || header[1]!='S' || header[2]!='R' || header[3]!='C') {
		//not normal

		//error=ERR_FILE_UNRECOGNIZED;
		memdelete(f);
		ERR_EXPLAIN("Unrecognized binary resource file: "+local_path);
		ERR_FAIL_V(ERR_FILE_UNRECOGNIZED);
	} else {
		fw = FileAccess::open(p_path+".depren",FileAccess::WRITE);
		if (!fw) {
			memdelete(f);
		}
		ERR_FAIL_COND_V(!fw,ERR_CANT_CREATE);
	}

	bool big_endian = f->get_32();
#ifdef BIG_ENDIAN_ENABLED
	endian_swap = !big_endian;
#else
	bool endian_swap = big_endian;
#endif

	bool use_real64 = f->get_32();

	f->set_endian_swap(big_endian!=0); //read big endian if saved as big endian
	fw->store_32(endian_swap);
	fw->set_endian_swap(big_endian!=0);
	fw->store_32(use_real64); //use real64

	uint32_t ver_major=f->get_32();
	uint32_t ver_minor=f->get_32();
	uint32_t ver_format=f->get_32();

	if (ver_format<FORMAT_VERSION_CAN_RENAME_DEPS) {

		memdelete(f);
		memdelete(fw);
		DirAccess *da = DirAccess::create(DirAccess::ACCESS_FILESYSTEM);
		da->remove(p_path+".depren");
		memdelete(da);
		//fuck it, use the old approach;

		WARN_PRINT(("This file is old, so it can't refactor dependencies, opening and resaving: "+p_path).utf8().get_data());

		Error err;
		f = FileAccess::open(p_path,FileAccess::READ,&err);
		if (err!=OK) {
			ERR_FAIL_COND_V(err!=OK,ERR_FILE_CANT_OPEN);
		}

		Ref<ResourceInteractiveLoaderBinary> ria = memnew( ResourceInteractiveLoaderBinary );
		ria->local_path=GlobalConfig::get_singleton()->localize_path(p_path);
		ria->res_path=ria->local_path;
		ria->remaps=p_map;
		//ria->set_local_path( Globals::get_singleton()->localize_path(p_path) );
		ria->open(f);

		err = ria->poll();

		while(err==OK) {
			err=ria->poll();
		}

		ERR_FAIL_COND_V(err!=ERR_FILE_EOF,ERR_FILE_CORRUPT);
		RES res = ria->get_resource();
		ERR_FAIL_COND_V(!res.is_valid(),ERR_FILE_CORRUPT);

		return ResourceFormatSaverBinary::singleton->save(p_path,res);
	}

	if (ver_format>FORMAT_VERSION ||  ver_major>VERSION_MAJOR) {

		memdelete(f);
		memdelete(fw);
		ERR_EXPLAIN("File Format '"+itos(FORMAT_VERSION)+"."+itos(ver_major)+"."+itos(ver_minor)+"' is too new! Please upgrade to a a new engine version: "+local_path);
		ERR_FAIL_V(ERR_FILE_UNRECOGNIZED);

	}

	fw->store_32( VERSION_MAJOR ); //current version
	fw->store_32( VERSION_MINOR );
	fw->store_32( FORMAT_VERSION );

	save_ustring(fw,get_ustring(f)); //type


	size_t md_ofs = f->get_pos();
	size_t importmd_ofs = f->get_64();
	fw->store_64(0); //metadata offset

	for(int i=0;i<14;i++) {
		fw->store_32(0);
		f->get_32();
	}

	//string table
	uint32_t string_table_size=f->get_32();

	fw->store_32(string_table_size);

	for(uint32_t i=0;i<string_table_size;i++) {

		String s = get_ustring(f);
		save_ustring(fw,s);
	}

	//external resources
	uint32_t ext_resources_size=f->get_32();
	fw->store_32(ext_resources_size);
	for(uint32_t i=0;i<ext_resources_size;i++) {

		String type = get_ustring(f);
		String path = get_ustring(f);

		bool relative=false;
		if (!path.begins_with("res://")) {
			path=local_path.plus_file(path).simplify_path();
			relative=true;
		}


		if (p_map.has(path)) {
			String np=p_map[path];
			path=np;
		}

		if (relative) {
			//restore relative
			path=local_path.path_to_file(path);
		}

		save_ustring(fw,type);
		save_ustring(fw,path);
	}

	int64_t size_diff = (int64_t)fw->get_pos() - (int64_t)f->get_pos();

	//internal resources
	uint32_t int_resources_size=f->get_32();
	fw->store_32(int_resources_size);

	for(uint32_t i=0;i<int_resources_size;i++) {


		String path=get_ustring(f);
		uint64_t offset=f->get_64();
		save_ustring(fw,path);
		fw->store_64(offset+size_diff);
	}

	//rest of file
	uint8_t b = f->get_8();
	while(!f->eof_reached()) {
		fw->store_8(b);
		b = f->get_8();
	}

	bool all_ok = fw->get_error()==OK;

	fw->seek(md_ofs);
	fw->store_64(importmd_ofs+size_diff);


	memdelete(f);
	memdelete(fw);

	if (!all_ok) {
		return ERR_CANT_CREATE;
	}

	DirAccess *da = DirAccess::create(DirAccess::ACCESS_RESOURCES);
	da->remove(p_path);
	da->rename(p_path+".depren",p_path);
	memdelete(da);
	return OK;
}


String ResourceFormatLoaderBinary::get_resource_type(const String &p_path) const {

	FileAccess *f = FileAccess::open(p_path,FileAccess::READ);
	if (!f) {
		return ""; //could not rwead
	}

	Ref<ResourceInteractiveLoaderBinary> ria = memnew( ResourceInteractiveLoaderBinary );
	ria->local_path=GlobalConfig::get_singleton()->localize_path(p_path);
	ria->res_path=ria->local_path;
	//ria->set_local_path( Globals::get_singleton()->localize_path(p_path) );
	String r = ria->recognize(f);
	return r;


}



///////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////


void ResourceFormatSaverBinaryInstance::_pad_buffer(int p_bytes) {

	int extra = 4-(p_bytes%4);
	if (extra<4) {
		for(int i=0;i<extra;i++)
			f->store_8(0); //pad to 32
	}

}


void ResourceFormatSaverBinaryInstance::write_variant(const Variant& p_property,const PropertyInfo& p_hint) {

	switch(p_property.get_type()) {

		case Variant::NIL: {

			f->store_32(VARIANT_NIL);
			// don't store anything
		} break;
		case Variant::BOOL: {

			f->store_32(VARIANT_BOOL);
			bool val=p_property;
			f->store_32(val);
		} break;
		case Variant::INT: {

			int64_t val = p_property;
			if (val>0x7FFFFFFF || val < -0x80000000) {
				f->store_32(VARIANT_INT64);
				f->store_64(val);

			} else {
				f->store_32(VARIANT_INT);
				int val=p_property;
				f->store_32(int32_t(val));

			}

		} break;
		case Variant::REAL: {


			double d = p_property;
			float fl = d;
			if (double(fl)!=d) {
				f->store_32(VARIANT_DOUBLE);
				f->store_double(d);
			} else {

				f->store_32(VARIANT_REAL);
				f->store_real(fl);

			}

		} break;
		case Variant::STRING: {

			f->store_32(VARIANT_STRING);
			String val=p_property;
			save_unicode_string(val);

		} break;
		case Variant::VECTOR2: {

			f->store_32(VARIANT_VECTOR2);
			Vector2 val=p_property;
			f->store_real(val.x);
			f->store_real(val.y);

		} break;
		case Variant::RECT2: {

			f->store_32(VARIANT_RECT2);
			Rect2 val=p_property;
			f->store_real(val.pos.x);
			f->store_real(val.pos.y);
			f->store_real(val.size.x);
			f->store_real(val.size.y);

		} break;
		case Variant::VECTOR3: {

			f->store_32(VARIANT_VECTOR3);
			Vector3 val=p_property;
			f->store_real(val.x);
			f->store_real(val.y);
			f->store_real(val.z);

		} break;
		case Variant::PLANE: {

			f->store_32(VARIANT_PLANE);
			Plane val=p_property;
			f->store_real(val.normal.x);
			f->store_real(val.normal.y);
			f->store_real(val.normal.z);
			f->store_real(val.d);

		} break;
		case Variant::QUAT: {

			f->store_32(VARIANT_QUAT);
			Quat val=p_property;
			f->store_real(val.x);
			f->store_real(val.y);
			f->store_real(val.z);
			f->store_real(val.w);

		} break;
		case Variant::RECT3: {

			f->store_32(VARIANT_AABB);
			Rect3 val=p_property;
			f->store_real(val.pos.x);
			f->store_real(val.pos.y);
			f->store_real(val.pos.z);
			f->store_real(val.size.x);
			f->store_real(val.size.y);
			f->store_real(val.size.z);

		} break;
		case Variant::TRANSFORM2D: {

			f->store_32(VARIANT_MATRIX32);
			Transform2D val=p_property;
			f->store_real(val.elements[0].x);
			f->store_real(val.elements[0].y);
			f->store_real(val.elements[1].x);
			f->store_real(val.elements[1].y);
			f->store_real(val.elements[2].x);
			f->store_real(val.elements[2].y);

		} break;
		case Variant::BASIS: {

			f->store_32(VARIANT_MATRIX3);
			Basis val=p_property;
			f->store_real(val.elements[0].x);
			f->store_real(val.elements[0].y);
			f->store_real(val.elements[0].z);
			f->store_real(val.elements[1].x);
			f->store_real(val.elements[1].y);
			f->store_real(val.elements[1].z);
			f->store_real(val.elements[2].x);
			f->store_real(val.elements[2].y);
			f->store_real(val.elements[2].z);

		} break;
		case Variant::TRANSFORM: {

			f->store_32(VARIANT_TRANSFORM);
			Transform val=p_property;
			f->store_real(val.basis.elements[0].x);
			f->store_real(val.basis.elements[0].y);
			f->store_real(val.basis.elements[0].z);
			f->store_real(val.basis.elements[1].x);
			f->store_real(val.basis.elements[1].y);
			f->store_real(val.basis.elements[1].z);
			f->store_real(val.basis.elements[2].x);
			f->store_real(val.basis.elements[2].y);
			f->store_real(val.basis.elements[2].z);
			f->store_real(val.origin.x);
			f->store_real(val.origin.y);
			f->store_real(val.origin.z);

		} break;
		case Variant::COLOR: {

			f->store_32(VARIANT_COLOR);
			Color val=p_property;
			f->store_real(val.r);
			f->store_real(val.g);
			f->store_real(val.b);
			f->store_real(val.a);

		} break;
		case Variant::IMAGE: {

			f->store_32(VARIANT_IMAGE);
			Image val =p_property;
			if (val.empty()) {
				f->store_32(IMAGE_ENCODING_EMPTY);
				break;
			}

			int encoding=IMAGE_ENCODING_RAW;
			float quality=0.7;

			if (!val.is_compressed()) {
				//can only compress uncompressed stuff

				if (p_hint.hint==PROPERTY_HINT_IMAGE_COMPRESS_LOSSY && Image::lossy_packer) {
					encoding=IMAGE_ENCODING_LOSSY;
					float qs=p_hint.hint_string.to_double();
					if (qs!=0.0)
						quality=qs;

				} else if (p_hint.hint==PROPERTY_HINT_IMAGE_COMPRESS_LOSSLESS && Image::lossless_packer) {
					encoding=IMAGE_ENCODING_LOSSLESS;

				}
			}

			f->store_32(encoding); //raw encoding

			if (encoding==IMAGE_ENCODING_RAW) {


				f->store_32(val.get_width());
				f->store_32(val.get_height());
				f->store_32(val.has_mipmaps());
				f->store_32(val.get_format()); //if format changes we can add a compatibility version bit

				int dlen = val.get_data().size();
				f->store_32(dlen);
				PoolVector<uint8_t>::Read r = val.get_data().read();
				f->store_buffer(r.ptr(),dlen);
				_pad_buffer(dlen);
			} else {

				PoolVector<uint8_t> data;
				if (encoding==IMAGE_ENCODING_LOSSY) {
					data=Image::lossy_packer(val,quality);

				} else if (encoding==IMAGE_ENCODING_LOSSLESS) {
					data=Image::lossless_packer(val);

				}

				int ds=data.size();
				f->store_32(ds);
				if (ds>0) {
					PoolVector<uint8_t>::Read r = data.read();
					f->store_buffer(r.ptr(),ds);

					_pad_buffer(ds);

				}
			}

		} break;
		case Variant::NODE_PATH: {
			f->store_32(VARIANT_NODE_PATH);
			NodePath np=p_property;
			f->store_16(np.get_name_count());
			uint16_t snc = np.get_subname_count();
			if (np.is_absolute())
				snc|=0x8000;
			f->store_16(snc);
			for(int i=0;i<np.get_name_count();i++)
				f->store_32(get_string_index(np.get_name(i)));
			for(int i=0;i<np.get_subname_count();i++)
				f->store_32(get_string_index(np.get_subname(i)));
			f->store_32(get_string_index(np.get_property()));

		} break;
		case Variant::_RID: {

			f->store_32(VARIANT_RID);
			WARN_PRINT("Can't save RIDs");
			RID val = p_property;
			f->store_32(val.get_id());
		} break;
		case Variant::OBJECT: {

			f->store_32(VARIANT_OBJECT);
			RES res = p_property;
			if (res.is_null()) {
				f->store_32(OBJECT_EMPTY);
				return; // don't save it
			}

			if (res->get_path().length() && res->get_path().find("::")==-1) {
				f->store_32(OBJECT_EXTERNAL_RESOURCE_INDEX);
				f->store_32(external_resources[res]);
			} else {

				if (!resource_set.has(res)) {
					f->store_32(OBJECT_EMPTY);
					ERR_EXPLAIN("Resource was not pre cached for the resource section, bug?");
					ERR_FAIL();
				}

				f->store_32(OBJECT_INTERNAL_RESOURCE);
				f->store_32(res->get_subindex());
				//internal resource
			}


		} break;
		case Variant::INPUT_EVENT: {

			f->store_32(VARIANT_INPUT_EVENT);
			InputEvent event=p_property;
			f->store_32(0); //event type none, nothing else suported for now.

		} break;
		case Variant::DICTIONARY: {

			f->store_32(VARIANT_DICTIONARY);
			Dictionary d = p_property;
			f->store_32(uint32_t(d.size()));

			List<Variant> keys;
			d.get_key_list(&keys);

			for(List<Variant>::Element *E=keys.front();E;E=E->next()) {

				/*
				if (!_check_type(dict[E->get()]))
					continue;
				*/

				write_variant(E->get());
				write_variant(d[E->get()]);
			}


		} break;
		case Variant::ARRAY: {

			f->store_32(VARIANT_ARRAY);
			Array a=p_property;
			f->store_32(uint32_t(a.size()));
			for(int i=0;i<a.size();i++) {

				write_variant(a[i]);
			}

		} break;
		case Variant::POOL_BYTE_ARRAY: {

			f->store_32(VARIANT_RAW_ARRAY);
			PoolVector<uint8_t> arr = p_property;
			int len=arr.size();
			f->store_32(len);
			PoolVector<uint8_t>::Read r = arr.read();
			f->store_buffer(r.ptr(),len);
			_pad_buffer(len);

		} break;
		case Variant::POOL_INT_ARRAY: {

			f->store_32(VARIANT_INT_ARRAY);
			PoolVector<int> arr = p_property;
			int len=arr.size();
			f->store_32(len);
			PoolVector<int>::Read r = arr.read();
			for(int i=0;i<len;i++)
				f->store_32(r[i]);

		} break;
		case Variant::POOL_REAL_ARRAY: {

			f->store_32(VARIANT_REAL_ARRAY);
			PoolVector<real_t> arr = p_property;
			int len=arr.size();
			f->store_32(len);
			PoolVector<real_t>::Read r = arr.read();
			for(int i=0;i<len;i++) {
				f->store_real(r[i]);
			}

		} break;
		case Variant::POOL_STRING_ARRAY: {

			f->store_32(VARIANT_STRING_ARRAY);
			PoolVector<String> arr = p_property;
			int len=arr.size();
			f->store_32(len);
			PoolVector<String>::Read r = arr.read();
			for(int i=0;i<len;i++) {
				save_unicode_string(r[i]);
			}

		} break;
		case Variant::POOL_VECTOR3_ARRAY: {

			f->store_32(VARIANT_VECTOR3_ARRAY);
			PoolVector<Vector3> arr = p_property;
			int len=arr.size();
			f->store_32(len);
			PoolVector<Vector3>::Read r = arr.read();
			for(int i=0;i<len;i++) {
				f->store_real(r[i].x);
				f->store_real(r[i].y);
				f->store_real(r[i].z);
			}

		} break;
		case Variant::POOL_VECTOR2_ARRAY: {

			f->store_32(VARIANT_VECTOR2_ARRAY);
			PoolVector<Vector2> arr = p_property;
			int len=arr.size();
			f->store_32(len);
			PoolVector<Vector2>::Read r = arr.read();
			for(int i=0;i<len;i++) {
				f->store_real(r[i].x);
				f->store_real(r[i].y);
			}

		} break;
		case Variant::POOL_COLOR_ARRAY: {

			f->store_32(VARIANT_COLOR_ARRAY);
			PoolVector<Color> arr = p_property;
			int len=arr.size();
			f->store_32(len);
			PoolVector<Color>::Read r = arr.read();
			for(int i=0;i<len;i++) {
				f->store_real(r[i].r);
				f->store_real(r[i].g);
				f->store_real(r[i].b);
				f->store_real(r[i].a);
			}

		} break;
		default: {

			ERR_EXPLAIN("Invalid variant");
			ERR_FAIL();
		}
	}
}


void ResourceFormatSaverBinaryInstance::_find_resources(const Variant& p_variant,bool p_main) {


	switch(p_variant.get_type()) {
		case Variant::OBJECT: {


			RES res = p_variant.operator RefPtr();

			if (res.is_null() || external_resources.has(res))
				return;

			if (!p_main && (!bundle_resources ) && res->get_path().length() && res->get_path().find("::") == -1 ) {
				int idx = external_resources.size();
				external_resources[res]=idx;
				return;
			}


			if (resource_set.has(res))
				return;

			List<PropertyInfo> property_list;

			res->get_property_list(&property_list);

			for(List<PropertyInfo>::Element *E=property_list.front();E;E=E->next()) {

				if (E->get().usage&PROPERTY_USAGE_STORAGE) {

					_find_resources(res->get(E->get().name));
				}
			}

			resource_set.insert(res);
			saved_resources.push_back(res);

		} break;

		case Variant::ARRAY: {

			Array varray=p_variant;
			int len=varray.size();
			for(int i=0;i<len;i++) {

				Variant v=varray.get(i);
				_find_resources(v);
			}

		} break;

		case Variant::DICTIONARY: {

			Dictionary d=p_variant;
			List<Variant> keys;
			d.get_key_list(&keys);
			for(List<Variant>::Element *E=keys.front();E;E=E->next()) {

				_find_resources(E->get());
				Variant v = d[E->get()];
				_find_resources(v);
			}
		} break;
		case Variant::NODE_PATH: {
			//take the chance and save node path strings
			NodePath np = p_variant;
			for(int i=0;i<np.get_name_count();i++)
				get_string_index(np.get_name(i));
			for(int i=0;i<np.get_subname_count();i++)
				get_string_index(np.get_subname(i));
			get_string_index(np.get_property());


		} break;

		default: {}
	}

}
#if 0
Error ResourceFormatSaverBinary::_save_obj(const Object *p_object,SavedObject *so) {

	//use classic way
	List<PropertyInfo> property_list;
	p_object->get_property_list( &property_list );

	for(List<PropertyInfo>::Element *E=property_list.front();E;E=E->next()) {

		if (skip_editor && E->get().name.begins_with("__editor"))
			continue;
		if (E->get().usage&PROPERTY_USAGE_STORAGE || (bundle_resources && E->get().usage&PROPERTY_USAGE_BUNDLE)) {

			SavedObject::SavedProperty sp;
			sp.name_idx=get_string_index(E->get().name);
			sp.value = p_object->get(E->get().name);
			_find_resources(sp.value);
			so->properties.push_back(sp);
		}
	}

	return OK;

}



Error ResourceFormatSaverBinary::save(const Object *p_object,const Variant &p_meta) {

	ERR_FAIL_COND_V(!f,ERR_UNCONFIGURED);
	ERR_EXPLAIN("write_object should supply either an object, a meta, or both");
	ERR_FAIL_COND_V(!p_object && p_meta.get_type()==Variant::NIL, ERR_INVALID_PARAMETER);

	SavedObject *so = memnew( SavedObject );

	if (p_object)
		so->type=p_object->get_type();

	_find_resources(p_meta);
	so->meta=p_meta;
	Error err = _save_obj(p_object,so);
	ERR_FAIL_COND_V( err, ERR_INVALID_DATA );

	saved_objects.push_back(so);

	return OK;
}
#endif

void ResourceFormatSaverBinaryInstance::save_unicode_string(const String& p_string) {


	CharString utf8 = p_string.utf8();
	f->store_32(utf8.length()+1);
	f->store_buffer((const uint8_t*)utf8.get_data(),utf8.length()+1);
}

int ResourceFormatSaverBinaryInstance::get_string_index(const String& p_string) {

	StringName s=p_string;
	if (string_map.has(s))
		return string_map[s];

	string_map[s]=strings.size();
	strings.push_back(s);
	return strings.size()-1;
}


Error ResourceFormatSaverBinaryInstance::save(const String &p_path,const RES& p_resource,uint32_t p_flags) {

	Error err;
	if (p_flags&ResourceSaver::FLAG_COMPRESS) {
		FileAccessCompressed *fac = memnew( FileAccessCompressed );
		fac->configure("RSCC");
		f=fac;
		err = fac->_open(p_path,FileAccess::WRITE);
		if (err)
			memdelete(f);

	} else {
		f=FileAccess::open(p_path,FileAccess::WRITE,&err);
	}


	ERR_FAIL_COND_V(err,err);
	FileAccessRef _fref(f);


	relative_paths=p_flags&ResourceSaver::FLAG_RELATIVE_PATHS;
	skip_editor=p_flags&ResourceSaver::FLAG_OMIT_EDITOR_PROPERTIES;
	bundle_resources=p_flags&ResourceSaver::FLAG_BUNDLE_RESOURCES;
	big_endian=p_flags&ResourceSaver::FLAG_SAVE_BIG_ENDIAN;
	takeover_paths=p_flags&ResourceSaver::FLAG_REPLACE_SUBRESOURCE_PATHS;

	if (!p_path.begins_with("res://"))
		takeover_paths=false;

	local_path=p_path.get_base_dir();
	//bin_meta_idx = get_string_index("__bin_meta__"); //is often used, so create

	_find_resources(p_resource,true);

	if (!(p_flags&ResourceSaver::FLAG_COMPRESS)) {
		//save header compressed
		static const uint8_t header[4]={'R','S','R','C'};
		f->store_buffer(header,4);
	}

	if (big_endian) {
		f->store_32(1);
		f->set_endian_swap(true);
	} else
		f->store_32(0);

	f->store_32(0); //64 bits file, false for now
	f->store_32(VERSION_MAJOR);
	f->store_32(VERSION_MINOR);
	f->store_32(FORMAT_VERSION);

	if (f->get_error()!=OK && f->get_error()!=ERR_FILE_EOF) {
		f->close();
		return ERR_CANT_CREATE;
	}

	//f->store_32(saved_resources.size()+external_resources.size()); // load steps -not needed
	save_unicode_string(p_resource->get_class());
	uint64_t md_at = f->get_pos();
	f->store_64(0); //offset to impoty metadata
	for(int i=0;i<14;i++)
		f->store_32(0); // reserved


	List<ResourceData> resources;


	{


		for(List<RES>::Element *E=saved_resources.front();E;E=E->next()) {


			ResourceData &rd = resources.push_back(ResourceData())->get();
			rd.type=E->get()->get_class();

			List<PropertyInfo> property_list;
			E->get()->get_property_list( &property_list );

			for(List<PropertyInfo>::Element *F=property_list.front();F;F=F->next()) {

				if (skip_editor && F->get().name.begins_with("__editor"))
					continue;
				if (F->get().usage&PROPERTY_USAGE_STORAGE ) {
					Property p;
					p.name_idx=get_string_index(F->get().name);
					p.value=E->get()->get(F->get().name);
					if ((F->get().usage&PROPERTY_USAGE_STORE_IF_NONZERO && p.value.is_zero())||(F->get().usage&PROPERTY_USAGE_STORE_IF_NONONE && p.value.is_one()) )
						continue;
					p.pi=F->get();

					rd.properties.push_back(p);

				}
			}



		}
	}


	f->store_32(strings.size()); //string table size
	for(int i=0;i<strings.size();i++) {
		//print_bl("saving string: "+strings[i]);
		save_unicode_string(strings[i]);
	}

	// save external resource table
	f->store_32(external_resources.size()); //amount of external resources
	Vector<RES> save_order;
	save_order.resize(external_resources.size());

	for(Map<RES,int>::Element *E=external_resources.front();E;E=E->next()) {
		save_order[E->get()]=E->key();
	}

	for(int i=0;i<save_order.size();i++) {

		save_unicode_string(save_order[i]->get_save_class());
		String path = save_order[i]->get_path();
		path=relative_paths?local_path.path_to_file(path):path;
		save_unicode_string(path);
	}
	// save internal resource table
	f->store_32(saved_resources.size()); //amount of internal resources
	Vector<uint64_t> ofs_pos;
	Set<int> used_indices;

	for(List<RES>::Element *E=saved_resources.front();E;E=E->next()) {

		RES r = E->get();
		if (r->get_path()=="" || r->get_path().find("::")!=-1) {

			if (r->get_subindex()!=0) {
				if (used_indices.has(r->get_subindex())) {
					r->set_subindex(0); //repeated
				} else {
					used_indices.insert(r->get_subindex());
				}
			}
		}

	}


	for(List<RES>::Element *E=saved_resources.front();E;E=E->next()) {


		RES r = E->get();
		if (r->get_path()=="" || r->get_path().find("::")!=-1) {
			if (r->get_subindex()==0) {
				int new_subindex=1;
				if (used_indices.size()) {
					new_subindex=used_indices.back()->get()+1;
				}

				r->set_subindex(new_subindex);
				used_indices.insert(new_subindex);

			}

			save_unicode_string("local://"+itos(r->get_subindex()));
			if (takeover_paths) {
				r->set_path(p_path+"::"+itos(r->get_subindex()),true);
			}
#ifdef TOOLS_ENABLED
			r->set_edited(false);
#endif
		} else {
			save_unicode_string(r->get_path()); //actual external
		}
		ofs_pos.push_back(f->get_pos());
		f->store_64(0); //offset in 64 bits
	}

	Vector<uint64_t> ofs_table;
	//int saved_idx=0;
	//now actually save the resources

	for(List<ResourceData>::Element *E=resources.front();E;E=E->next()) {

		ResourceData & rd = E->get();

		ofs_table.push_back(f->get_pos());
		save_unicode_string(rd.type);
		f->store_32(rd.properties.size());

		for (List<Property>::Element *F=rd.properties.front();F;F=F->next()) {

			Property &p=F->get();
			f->store_32(p.name_idx);
			write_variant(p.value,F->get().pi);
		}

	}

	for(int i=0;i<ofs_table.size();i++) {
		f->seek(ofs_pos[i]);
		f->store_64(ofs_table[i]);
	}

	f->seek_end();


	f->store_buffer((const uint8_t*)"RSRC",4); //magic at end

	if (f->get_error()!=OK && f->get_error()!=ERR_FILE_EOF) {
		f->close();
		return ERR_CANT_CREATE;
	}

	f->close();


	return OK;
}



Error ResourceFormatSaverBinary::save(const String &p_path,const RES& p_resource,uint32_t p_flags) {


	String local_path = GlobalConfig::get_singleton()->localize_path(p_path);
	ResourceFormatSaverBinaryInstance saver;
	return saver.save(local_path,p_resource,p_flags);

}


bool ResourceFormatSaverBinary::recognize(const RES& p_resource) const {

	return true; //all recognized

}

void ResourceFormatSaverBinary::get_recognized_extensions(const RES& p_resource,List<String> *p_extensions) const {

	String base = p_resource->get_base_extension().to_lower();
	p_extensions->push_back(base);
	if (base!="res")
		p_extensions->push_back("res");

}

ResourceFormatSaverBinary* ResourceFormatSaverBinary::singleton=NULL;

ResourceFormatSaverBinary::ResourceFormatSaverBinary() {

	singleton=this;
}