godot/core/io/resource_loader.h
Rémi Verschelde d8223ffa75 Welcome in 2017, dear changelog reader!
That year should bring the long-awaited OpenGL ES 3.0 compatible renderer
with state-of-the-art rendering techniques tuned to work as low as middle
end handheld devices - without compromising with the possibilities given
for higher end desktop games of course. Great times ahead for the Godot
community and the gamers that will play our games!

(cherry picked from commit c7bc44d5ad)
2017-01-12 19:15:30 +01:00

126 lines
5.9 KiB
C++

/*************************************************************************/
/* resource_loader.h */
/*************************************************************************/
/* 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. */
/*************************************************************************/
#ifndef RESOURCE_LOADER_H
#define RESOURCE_LOADER_H
#include "resource.h"
/**
@author Juan Linietsky <reduzio@gmail.com>
*/
class ResourceInteractiveLoader : public Reference {
OBJ_TYPE(ResourceInteractiveLoader,Reference);
protected:
static void _bind_methods();
public:
virtual void set_local_path(const String& p_local_path)=0;
virtual Ref<Resource> get_resource()=0;
virtual Error poll()=0;
virtual int get_stage() const=0;
virtual int get_stage_count() const=0;
virtual Error wait();
ResourceInteractiveLoader() {}
};
class ResourceFormatLoader {
public:
virtual Ref<ResourceInteractiveLoader> load_interactive(const String &p_path,Error *r_error=NULL);
virtual RES load(const String &p_path,const String& p_original_path="",Error *r_error=NULL);
virtual void get_recognized_extensions(List<String> *p_extensions) const=0;
virtual void get_recognized_extensions_for_type(const String& p_type,List<String> *p_extensions) const;
bool recognize(const String& p_extension) const;
virtual bool handles_type(const String& p_type) const=0;
virtual String get_resource_type(const String &p_path) const=0;
virtual void get_dependencies(const String& p_path,List<String> *p_dependencies,bool p_add_types=false);
virtual Error load_import_metadata(const String &p_path, Ref<ResourceImportMetadata>& r_var) const { return ERR_UNAVAILABLE; }
virtual Error rename_dependencies(const String &p_path,const Map<String,String>& p_map) { return OK; }
virtual ~ResourceFormatLoader() {}
};
typedef void (*ResourceLoadErrorNotify)(void *p_ud,const String& p_text);
typedef void (*DependencyErrorNotify)(void *p_ud,const String& p_loading,const String& p_which,const String& p_type);
class ResourceLoader {
enum {
MAX_LOADERS=64
};
static ResourceFormatLoader *loader[MAX_LOADERS];
static int loader_count;
static bool timestamp_on_load;
static void* err_notify_ud;
static ResourceLoadErrorNotify err_notify;
static void* dep_err_notify_ud;
static DependencyErrorNotify dep_err_notify;
static bool abort_on_missing_resource;
static String find_complete_path(const String& p_path,const String& p_type);
public:
static Ref<ResourceInteractiveLoader> load_interactive(const String &p_path,const String& p_type_hint="",bool p_no_cache=false,Error *r_error=NULL);
static RES load(const String &p_path,const String& p_type_hint="",bool p_no_cache=false,Error *r_error=NULL);
static Ref<ResourceImportMetadata> load_import_metadata(const String &p_path);
static void get_recognized_extensions_for_type(const String& p_type,List<String> *p_extensions);
static void add_resource_format_loader(ResourceFormatLoader *p_format_loader,bool p_at_front=false);
static String get_resource_type(const String &p_path);
static void get_dependencies(const String& p_path,List<String> *p_dependencies,bool p_add_types=false);
static Error rename_dependencies(const String &p_path,const Map<String,String>& p_map);
static String guess_full_filename(const String &p_path,const String& p_type);
static void set_timestamp_on_load(bool p_timestamp) { timestamp_on_load=p_timestamp; }
static void notify_load_error(const String& p_err) { if (err_notify) err_notify(err_notify_ud,p_err); }
static void set_error_notify_func(void* p_ud,ResourceLoadErrorNotify p_err_notify) { err_notify=p_err_notify; err_notify_ud=p_ud;}
static void notify_dependency_error(const String& p_path,const String& p_dependency,const String& p_type) { if (dep_err_notify) dep_err_notify(dep_err_notify_ud,p_path,p_dependency,p_type); }
static void set_dependency_error_notify_func(void* p_ud,DependencyErrorNotify p_err_notify) { dep_err_notify=p_err_notify; dep_err_notify_ud=p_ud;}
static void set_abort_on_missing_resources(bool p_abort) { abort_on_missing_resource=p_abort; }
static bool get_abort_on_missing_resources() { return abort_on_missing_resource; }
};
#endif