Resources::ResourceLoader Class Reference
#include <resourceloader.h>
Inheritance diagram for Resources::ResourceLoader:
Detailed Description
A resource loader is responsible to setup a resource object with valid data.(C) 2007 Radon Labs GmbH
Public Member Functions | |
| ResourceLoader () | |
| constructor | |
| virtual | ~ResourceLoader () |
| destructor | |
| virtual void | OnAttachToResource (const Ptr< Resource > &res) |
| called when the resource loader is attached to its resource | |
| virtual void | OnRemoveFromResource () |
| called when the resource loader is removed from its resource | |
| bool | IsAttachedToResource () const |
| return true if attached to resource | |
| const Ptr< Resource > & | GetResource () const |
| get pointer to resource | |
| virtual bool | CanLoadAsync () const |
| return true if asynchronous loading is supported | |
| virtual bool | OnLoadRequested () |
| called by resource when a load is requested | |
| virtual void | OnLoadCancelled () |
| called by resource to cancel a pending load | |
| virtual bool | OnPending () |
| call frequently while after OnLoadRequested() to put Resource into loaded state | |
| Resource::State | GetState () const |
| return current state | |
| virtual void | Reset () |
| resets loader-stats e.g. state | |
| int | GetRefCount () const |
| get the current refcount | |
| void | AddRef () |
| increment refcount by one | |
| void | Release () |
| decrement refcount and destroy object if refcount is zero | |
| bool | IsInstanceOf (const Rtti &rtti) const |
| return true if this object is instance of given class | |
| bool | IsInstanceOf (const Util::String &className) const |
| return true if this object is instance of given class by string | |
| bool | IsInstanceOf (const Util::FourCC &classFourCC) const |
| return true if this object is instance of given class by fourcc | |
| bool | IsA (const Rtti &rtti) const |
| return true if this object is instance of given class, or a derived class | |
| bool | IsA (const Util::String &rttiName) const |
| return true if this object is instance of given class, or a derived class, by string | |
| bool | IsA (const Util::FourCC &rttiFourCC) const |
| return true if this object is instance of given class, or a derived class, by fourcc | |
| const Util::String & | GetClassName () const |
| get the class name | |
| Util::FourCC | GetClassFourCC () const |
| get the class FourCC code | |
Static Public Member Functions | |
| static void | DumpRefCountingLeaks () |
| dump refcounting leaks, call at end of application (NEBULA3_DEBUG builds only!) | |
Protected Member Functions | |
| void | SetState (Resource::State s) |
| set current state | |
Member Function Documentation
| bool Resources::ResourceLoader::CanLoadAsync | ( | ) | const [virtual] |
return true if asynchronous loading is supported
This method should be overriden in a subclass and indicates whether the resource loader supports asynchronous resource loading. If asynchronous loading is requested, the OnLoadRequested() method will return immediately and the Resource object will be put into Pending state. Afterwards, the Resource object needs to poll the ResourceLoader using the OnPending method, which will eventually setup the Resource object.
Reimplemented in Direct3D9::D3D9StreamShaderLoader, Models::StreamModelLoader, and Resources::StreamResourceLoader.
| bool Resources::ResourceLoader::OnLoadRequested | ( | ) | [virtual] |
called by resource when a load is requested
This method is called by our Resource object to perform a synchronous or initiate an asynchronous load. When performing a synchronous load, the method should setup the Resource and go into the Done state (or Failed state when the load has failed). In asynchronous mode, the method should put the resource loader into the Pending state.
Reimplemented in CoreGraphics::MemoryMeshLoader, Win360::D3D9MemoryIndexBufferLoader, Win360::D3D9MemoryVertexBufferLoader, Models::StreamModelLoader, Resources::D3D9TextureStreamer, and Resources::StreamResourceLoader.
| void Resources::ResourceLoader::OnLoadCancelled | ( | ) | [virtual] |
called by resource to cancel a pending load
This method is called by our Resource object if a pending asynchronous load should be cancelled.
Reimplemented in Models::StreamModelLoader, and Resources::StreamResourceLoader.
| bool Resources::ResourceLoader::OnPending | ( | ) | [virtual] |
call frequently while after OnLoadRequested() to put Resource into loaded state
This method should be called at some time after OnLoadRequested() as long as the ResourceLoader is in the Pending state. This will check whether the asynchronous loader job has finished, and if yes, setup the Resource object, bringing it from the Pending into the Loaded state. If something goes wrong, the ResourceLoader will go into the Failed state. If the outstanding loader job isn't finished yet, the ResourceLoader should remain in Pending state, and the method should return false. Otherwise the Resource should be initialized, and the method should return true.
Reimplemented in Models::StreamModelLoader, and Resources::StreamResourceLoader.
| int Core::RefCounted::GetRefCount | ( | ) | const [inline, inherited] |
get the current refcount
Return the current refcount of the object.
| void Core::RefCounted::AddRef | ( | ) | [inline, inherited] |
increment refcount by one
Increment the refcount of the object.
| void Core::RefCounted::Release | ( | ) | [inline, inherited] |
decrement refcount and destroy object if refcount is zero
Decrement the refcount and destroy object if refcount is zero.
| const Util::String & Core::RefCounted::GetClassName | ( | ) | const [inline, inherited] |
get the class name
Get the class name of the object.
| Util::FourCC Core::RefCounted::GetClassFourCC | ( | ) | const [inline, inherited] |
get the class FourCC code
Get the class FourCC of the object.
| void Core::RefCounted::DumpRefCountingLeaks | ( | ) | [static, inherited] |
dump refcounting leaks, call at end of application (NEBULA3_DEBUG builds only!)
This method should be called as the very last before an application exits.