open_toontown_panda3d/panda/src/display/textureContext.h

59 lines
1.7 KiB
C++

// Filename: textureContext.h
// Created by: drose (07Oct99)
//
////////////////////////////////////////////////////////////////////
#ifndef TEXTURECONTEXT_H
#define TEXTURECONTEXT_H
#include <pandabase.h>
#include <typeHandle.h>
class Texture;
////////////////////////////////////////////////////////////////////
// Class : TextureContext
// Description : This is a special class object that holds all the
// information returned by a particular GSG to indicate
// the texture's internal context identifier.
//
// Textures typically have an immediate-mode and a
// retained-mode operation. When using textures in
// retained-mode (in response to
// Texture::prepare_texture()), the GSG will create some
// internal handle for the texture and store it here.
// The texture stores all of these handles internally.
////////////////////////////////////////////////////////////////////
class EXPCL_PANDA TextureContext : public TypedObject {
public:
INLINE TextureContext(Texture *tex);
// This cannot be a PT(Texture), because the texture and the GSG
// both own their TextureContexts! That would create a circular
// reference count.
Texture *_texture;
public:
static TypeHandle get_class_type() {
return _type_handle;
}
static void init_type() {
TypedObject::init_type();
register_type(_type_handle, "TextureContext",
TypedObject::get_class_type());
}
virtual TypeHandle get_type() const {
return get_class_type();
}
virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
private:
static TypeHandle _type_handle;
};
#include "textureContext.I"
#endif