Panda3D
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00001 // Filename: transformBlend.h 00002 // Created by: drose (24Mar05) 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 TRANSFORMBLEND_H 00016 #define TRANSFORMBLEND_H 00017 00018 #include "pandabase.h" 00019 #include "vertexTransform.h" 00020 #include "pointerTo.h" 00021 #include "pvector.h" 00022 #include "ordered_vector.h" 00023 #include "cycleData.h" 00024 #include "cycleDataLockedReader.h" 00025 #include "cycleDataReader.h" 00026 #include "cycleDataWriter.h" 00027 #include "pipelineCycler.h" 00028 00029 //////////////////////////////////////////////////////////////////// 00030 // Class : TransformBlend 00031 // Description : This defines a single entry in a 00032 // TransformBlendTable. It represents a unique 00033 // combination of VertexTransform pointers and blend 00034 // amounts. 00035 //////////////////////////////////////////////////////////////////// 00036 class EXPCL_PANDA_GOBJ TransformBlend { 00037 PUBLISHED: 00038 INLINE TransformBlend(); 00039 INLINE TransformBlend(const VertexTransform *transform0, PN_stdfloat weight0); 00040 INLINE TransformBlend(const VertexTransform *transform0, PN_stdfloat weight0, 00041 const VertexTransform *transform1, PN_stdfloat weight1); 00042 INLINE TransformBlend(const VertexTransform *transform0, PN_stdfloat weight0, 00043 const VertexTransform *transform1, PN_stdfloat weight1, 00044 const VertexTransform *transform2, PN_stdfloat weight2); 00045 INLINE TransformBlend(const VertexTransform *transform0, PN_stdfloat weight0, 00046 const VertexTransform *transform1, PN_stdfloat weight1, 00047 const VertexTransform *transform2, PN_stdfloat weight2, 00048 const VertexTransform *transform3, PN_stdfloat weight3); 00049 INLINE TransformBlend(const TransformBlend ©); 00050 INLINE void operator = (const TransformBlend ©); 00051 INLINE ~TransformBlend(); 00052 00053 int compare_to(const TransformBlend &other) const; 00054 INLINE bool operator < (const TransformBlend &other) const; 00055 INLINE bool operator == (const TransformBlend &other) const; 00056 INLINE bool operator != (const TransformBlend &other) const; 00057 00058 void add_transform(const VertexTransform *transform, PN_stdfloat weight); 00059 void remove_transform(const VertexTransform *transform); 00060 void limit_transforms(int max_transforms); 00061 void normalize_weights(); 00062 bool has_transform(const VertexTransform *transform) const; 00063 PN_stdfloat get_weight(const VertexTransform *transform) const; 00064 00065 INLINE int get_num_transforms() const; 00066 INLINE const VertexTransform *get_transform(int n) const; 00067 MAKE_SEQ(get_transforms, get_num_transforms, get_transform); 00068 INLINE PN_stdfloat get_weight(int n) const; 00069 INLINE void set_transform(int n, const VertexTransform *transform); 00070 INLINE void set_weight(int n, PN_stdfloat weight); 00071 00072 INLINE void update_blend(Thread *current_thread) const; 00073 00074 INLINE void get_blend(LMatrix4 &result, Thread *current_thread) const; 00075 00076 INLINE void transform_point(LPoint4f &point, Thread *current_thread) const; 00077 INLINE void transform_point(LPoint3f &point, Thread *current_thread) const; 00078 INLINE void transform_vector(LVector3f &point, Thread *current_thread) const; 00079 00080 INLINE void transform_point(LPoint4d &point, Thread *current_thread) const; 00081 INLINE void transform_point(LPoint3d &point, Thread *current_thread) const; 00082 INLINE void transform_vector(LVector3d &point, Thread *current_thread) const; 00083 00084 INLINE UpdateSeq get_modified(Thread *current_thread) const; 00085 00086 void output(ostream &out) const; 00087 void write(ostream &out, int indent_level) const; 00088 00089 private: 00090 class CData; 00091 00092 void recompute_result(CData *cdata, Thread *current_thread); 00093 void clear_result(Thread *current_thread); 00094 00095 class TransformEntry { 00096 public: 00097 INLINE bool operator < (const TransformEntry &other) const; 00098 00099 CPT(VertexTransform) _transform; 00100 PN_stdfloat _weight; 00101 }; 00102 typedef ov_set<TransformEntry> Entries; 00103 Entries _entries; 00104 00105 // This is the data that must be cycled between pipeline stages; it 00106 // is just a local cache. 00107 class EXPCL_PANDA_GOBJ CData : public CycleData { 00108 public: 00109 INLINE CData(); 00110 INLINE CData(const CData ©); 00111 virtual CycleData *make_copy() const; 00112 virtual TypeHandle get_parent_type() const { 00113 return TransformBlend::get_class_type(); 00114 } 00115 00116 LMatrix4 _result; 00117 UpdateSeq _modified; 00118 UpdateSeq _global_modified; 00119 }; 00120 00121 PipelineCycler<CData> _cycler; 00122 typedef CycleDataLockedReader<CData> CDLockedReader; 00123 typedef CycleDataReader<CData> CDReader; 00124 typedef CycleDataWriter<CData> CDWriter; 00125 00126 public: 00127 void write_datagram(BamWriter *manager, Datagram &dg) const; 00128 int complete_pointers(TypedWritable **plist, BamReader *manager); 00129 void fillin(DatagramIterator &scan, BamReader *manager); 00130 00131 friend class VertexTransform; 00132 00133 public: 00134 static TypeHandle get_class_type() { 00135 return _type_handle; 00136 } 00137 static void init_type() { 00138 register_type(_type_handle, "TransformBlend"); 00139 } 00140 00141 private: 00142 static TypeHandle _type_handle; 00143 }; 00144 00145 INLINE ostream &operator << (ostream &out, const TransformBlend &obj); 00146 00147 #include "transformBlend.I" 00148 00149 #endif