Panda3D

texMatrixAttrib.h

00001 // Filename: texMatrixAttrib.h
00002 // Created by:  drose (14Mar02)
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 TEXMATRIXATTRIB_H
00016 #define TEXMATRIXATTRIB_H
00017 
00018 #include "pandabase.h"
00019 
00020 #include "geom.h"
00021 #include "renderAttrib.h"
00022 #include "textureStage.h"
00023 #include "transformState.h"
00024 #include "pointerTo.h"
00025 
00026 class FactoryParams;
00027 
00028 ////////////////////////////////////////////////////////////////////
00029 //       Class : TexMatrixAttrib
00030 // Description : Applies a transform matrix to UV's before they are
00031 //               rendered.
00032 ////////////////////////////////////////////////////////////////////
00033 class EXPCL_PANDA_PGRAPH TexMatrixAttrib : public RenderAttrib {
00034 protected:
00035   INLINE TexMatrixAttrib();
00036   INLINE TexMatrixAttrib(const TexMatrixAttrib &copy);
00037 
00038 public:
00039   virtual ~TexMatrixAttrib();
00040 
00041 PUBLISHED:
00042   static CPT(RenderAttrib) make();
00043   static CPT(RenderAttrib) make(const LMatrix4f &mat);
00044   static CPT(RenderAttrib) make(TextureStage *stage, const TransformState *transform);
00045   static CPT(RenderAttrib) make_default();
00046 
00047   CPT(RenderAttrib) add_stage(TextureStage *stage, const TransformState *transform, int override = 0) const;
00048   CPT(RenderAttrib) remove_stage(TextureStage *stage) const;
00049 
00050   bool is_empty() const;
00051   bool has_stage(TextureStage *stage) const;
00052 
00053   int get_num_stages() const;
00054   TextureStage *get_stage(int n) const;
00055   MAKE_SEQ(get_stages, get_num_stages, get_stage);
00056 
00057   const LMatrix4f &get_mat() const;
00058   const LMatrix4f &get_mat(TextureStage *stage) const;
00059 
00060   CPT(TransformState) get_transform(TextureStage *stage) const;
00061   INLINE int get_override(TextureStage *stage) const;
00062 
00063   INLINE int get_geom_rendering(int geom_rendering) const;
00064 
00065 public:
00066   virtual void output(ostream &out) const;
00067 
00068 protected:
00069   virtual int compare_to_impl(const RenderAttrib *other) const;
00070   virtual CPT(RenderAttrib) compose_impl(const RenderAttrib *other) const;
00071   virtual CPT(RenderAttrib) invert_compose_impl(const RenderAttrib *other) const;
00072 
00073 private:
00074   INLINE void check_stage_list() const;
00075   void rebuild_stage_list();
00076 
00077 private:
00078   class StageNode {
00079   public:
00080     INLINE StageNode(const TextureStage *stage);
00081 
00082     INLINE bool operator < (const StageNode &other) const;
00083 
00084     PT(TextureStage) _stage;
00085     CPT(TransformState) _transform;
00086     int _override;
00087   };
00088 
00089   class CompareTextureStagePointer {
00090   public:
00091     INLINE bool operator () (const TexMatrixAttrib::StageNode &a, const TexMatrixAttrib::StageNode &b) const;
00092   };
00093 
00094   typedef ov_set<StageNode, CompareTextureStagePointer> Stages;
00095   Stages _stages;
00096 
00097   static CPT(RenderAttrib) _empty_attrib;
00098 
00099 PUBLISHED:
00100   static int get_class_slot() {
00101     return _attrib_slot;
00102   }
00103   virtual int get_slot() const {
00104     return get_class_slot();
00105   }
00106 
00107 public:
00108   static void register_with_read_factory();
00109   virtual void write_datagram(BamWriter *manager, Datagram &dg);
00110   virtual int complete_pointers(TypedWritable **plist, BamReader *manager);
00111 
00112 protected:
00113   static TypedWritable *make_from_bam(const FactoryParams &params);
00114   void fillin(DatagramIterator &scan, BamReader *manager);
00115   
00116 public:
00117   static TypeHandle get_class_type() {
00118     return _type_handle;
00119   }
00120   static void init_type() {
00121     RenderAttrib::init_type();
00122     register_type(_type_handle, "TexMatrixAttrib",
00123                   RenderAttrib::get_class_type());
00124     _attrib_slot = register_slot(_type_handle, 100, make_default);
00125   }
00126   virtual TypeHandle get_type() const {
00127     return get_class_type();
00128   }
00129   virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
00130 
00131 private:
00132   static TypeHandle _type_handle;
00133   static int _attrib_slot;
00134 };
00135 
00136 #include "texMatrixAttrib.I"
00137 
00138 #endif
00139 
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