Panda3D

dxGeomMunger8.h

00001 // Filename: dxGeomMunger8.h
00002 // Created by:  drose (11Mar05)
00003 //
00004 ////////////////////////////////////////////////////////////////////
00005 //
00006 // PANDA 3D SOFTWARE
00007 // Copyright (c) Carnegie Mellon University.  All rights reserved.
00008 //
00009 // All use of this software is subject to the terms of the revised BSD
00010 // license.  You should have received a copy of this license along
00011 // with this source code in a file named "LICENSE."
00012 //
00013 ////////////////////////////////////////////////////////////////////
00014 
00015 #ifndef DXGEOMMUNGER8_H
00016 #define DXGEOMMUNGER8_H
00017 
00018 #include "pandabase.h"
00019 #include "standardMunger.h"
00020 #include "graphicsStateGuardian.h"
00021 #include "weakPointerTo.h"
00022 #include "weakPointerCallback.h"
00023 
00024 ////////////////////////////////////////////////////////////////////
00025 //       Class : DXGeomMunger8
00026 // Description : This specialization on GeomMunger finesses vertices
00027 //               for DirectX rendering.  In particular, it makes sure
00028 //               colors are stored in DirectX's packed_argb format,
00029 //               and that all relevant components are packed into a
00030 //               single array, in the correct order.
00031 ////////////////////////////////////////////////////////////////////
00032 class EXPCL_PANDADX DXGeomMunger8 : public StandardMunger, public WeakPointerCallback {
00033 public:
00034   INLINE DXGeomMunger8(GraphicsStateGuardian *gsg, const RenderState *state);
00035   virtual ~DXGeomMunger8();
00036   ALLOC_DELETED_CHAIN(DXGeomMunger8);
00037 
00038   virtual void wp_callback(void *);
00039 
00040 protected:
00041   virtual CPT(GeomVertexFormat) munge_format_impl(const GeomVertexFormat *orig,
00042                                                   const GeomVertexAnimationSpec &animation);
00043   virtual CPT(GeomVertexFormat) premunge_format_impl(const GeomVertexFormat *orig);
00044 
00045   virtual int compare_to_impl(const GeomMunger *other) const;
00046   virtual int geom_compare_to_impl(const GeomMunger *other) const;
00047 
00048 private:
00049   WCPT(TextureAttrib) _texture;
00050   WCPT(TexGenAttrib) _tex_gen;
00051 
00052   // This pointer is derived from _texture, above.  In the case that
00053   // it is a different pointer, we maintain its reference count
00054   // explicitly.  If it is the same pointer, we don't reference count
00055   // it at all (so we won't hold on to the reference count
00056   // unnecessarily).
00057   const TextureAttrib *_filtered_texture;
00058   bool _reffed_filtered_texture;
00059 
00060   static GeomMunger *_deleted_chain;
00061 
00062 public:
00063   static TypeHandle get_class_type() {
00064     return _type_handle;
00065   }
00066   static void init_type() {
00067     StandardMunger::init_type();
00068     register_type(_type_handle, "DXGeomMunger8",
00069                   StandardMunger::get_class_type());
00070   }
00071   virtual TypeHandle get_type() const {
00072     return get_class_type();
00073   }
00074   virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
00075 
00076 private:
00077   static TypeHandle _type_handle;
00078 };
00079 
00080 #include "dxGeomMunger8.I"
00081 
00082 #endif
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