204 lines
6.5 KiB
C
204 lines
6.5 KiB
C
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/**
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* PANDA 3D SOFTWARE
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* Copyright (c) Carnegie Mellon University. All rights reserved.
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*
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* All use of this software is subject to the terms of the revised BSD
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* license. You should have received a copy of this license along
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* with this source code in a file named "LICENSE."
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*
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* @file textureAttrib.h
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* @author drose
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* @date 2002-02-21
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*/
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#ifndef TEXTUREATTRIB_H
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#define TEXTUREATTRIB_H
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#include "pandabase.h"
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#include "renderAttrib.h"
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#include "texture.h"
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#include "textureStage.h"
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#include "updateSeq.h"
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#include "ordered_vector.h"
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#include "vector_int.h"
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#include "epvector.h"
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/**
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* Indicates the set of TextureStages and their associated Textures that
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* should be applied to (or removed from) a node.
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*/
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class EXPCL_PANDA_PGRAPH TextureAttrib : public RenderAttrib {
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protected:
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INLINE TextureAttrib();
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INLINE TextureAttrib(const TextureAttrib ©);
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PUBLISHED:
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// These methods are used to create a simple, single-textured layer. For
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// multitexture, use the multitexture interfaces, further below.
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static CPT(RenderAttrib) make(Texture *tex);
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static CPT(RenderAttrib) make_off();
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static CPT(RenderAttrib) make_default();
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INLINE bool is_off() const;
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INLINE Texture *get_texture() const;
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// The following methods define the new multitexture mode for TextureAttrib.
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// Each TextureAttrib can add or remove individual texture stages from the
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// complete set of textures that are to be applied; this is similar to the
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// mechanism of LightAttrib.
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static CPT(RenderAttrib) make();
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static CPT(RenderAttrib) make_all_off();
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INLINE int get_num_on_stages() const;
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INLINE TextureStage *get_on_stage(int n) const;
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MAKE_SEQ(get_on_stages, get_num_on_stages, get_on_stage);
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INLINE int get_num_on_ff_stages() const;
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INLINE TextureStage *get_on_ff_stage(int n) const;
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MAKE_SEQ(get_on_ff_stages, get_num_on_ff_stages, get_on_ff_stage);
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INLINE int get_ff_tc_index(int n) const;
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INLINE bool has_on_stage(TextureStage *stage) const;
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INLINE Texture *get_on_texture(TextureStage *stage) const;
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INLINE const SamplerState &get_on_sampler(TextureStage *stage) const;
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INLINE int get_on_stage_override(TextureStage *stage) const;
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int find_on_stage(const TextureStage *stage) const;
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MAKE_SEQ_PROPERTY(on_stages, get_num_on_stages, get_on_stage);
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MAKE_MAP_PROPERTY(textures, has_on_stage, get_on_texture);
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MAKE_MAP_KEYS_SEQ(textures, get_num_on_stages, get_on_stage);
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MAKE_MAP_PROPERTY(samplers, has_on_stage, get_on_sampler);
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MAKE_MAP_KEYS_SEQ(samplers, get_num_on_stages, get_on_stage);
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INLINE int get_num_off_stages() const;
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INLINE TextureStage *get_off_stage(int n) const;
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MAKE_SEQ(get_off_stages, get_num_off_stages, get_off_stage);
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INLINE bool has_off_stage(TextureStage *stage) const;
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INLINE bool has_all_off() const;
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MAKE_SEQ_PROPERTY(off_stages, get_num_off_stages, get_off_stage);
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INLINE bool is_identity() const;
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CPT(RenderAttrib) add_on_stage(TextureStage *stage, Texture *tex, int override = 0) const;
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CPT(RenderAttrib) add_on_stage(TextureStage *stage, Texture *tex,
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const SamplerState &sampler, int override = 0) const;
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CPT(RenderAttrib) remove_on_stage(TextureStage *stage) const;
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CPT(RenderAttrib) add_off_stage(TextureStage *stage, int override = 0) const;
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CPT(RenderAttrib) remove_off_stage(TextureStage *stage) const;
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CPT(RenderAttrib) unify_texture_stages(TextureStage *stage) const;
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public:
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CPT(TextureAttrib) filter_to_max(int max_texture_stages) const;
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virtual bool lower_attrib_can_override() const;
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virtual void output(std::ostream &out) const;
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virtual bool has_cull_callback() const;
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virtual bool cull_callback(CullTraverser *trav, const CullTraverserData &data) const;
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protected:
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virtual int compare_to_impl(const RenderAttrib *other) const;
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virtual size_t get_hash_impl() const;
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virtual CPT(RenderAttrib) compose_impl(const RenderAttrib *other) const;
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virtual CPT(RenderAttrib) invert_compose_impl(const RenderAttrib *other) const;
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private:
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INLINE void check_sorted() const;
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void sort_on_stages();
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private:
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class StageNode {
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public:
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INLINE StageNode(const TextureStage *stage,
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unsigned int implicit_sort = 0,
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int override = 0);
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SamplerState _sampler;
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PT(TextureStage) _stage;
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PT(Texture) _texture;
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bool _has_sampler;
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int _ff_tc_index;
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unsigned int _implicit_sort;
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int _override;
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};
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class CompareTextureStagePriorities {
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public:
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INLINE bool operator () (const TextureAttrib::StageNode *a, const TextureAttrib::StageNode *b) const;
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};
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class CompareTextureStageSort {
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public:
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INLINE bool operator () (const TextureAttrib::StageNode *a, const TextureAttrib::StageNode *b) const;
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};
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class CompareTextureStagePointer {
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public:
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INLINE bool operator () (const TextureAttrib::StageNode &a, const TextureAttrib::StageNode &b) const;
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};
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typedef ov_set<StageNode, CompareTextureStagePointer, epvector<StageNode> > Stages;
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Stages _on_stages; // set of all "on" stages, indexed by pointer.
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typedef pvector<StageNode *> RenderStages;
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RenderStages _render_stages; // all "on" stages, sorted in render order.
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RenderStages _render_ff_stages; // fixed-function stages only, in render order.
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unsigned int _next_implicit_sort;
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Stages _off_stages;
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bool _off_all_stages;
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typedef pmap< int, CPT(TextureAttrib) > Filtered;
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Filtered _filtered;
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UpdateSeq _sort_seq;
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UpdateSeq _filtered_seq;
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static CPT(RenderAttrib) _empty_attrib;
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static CPT(RenderAttrib) _all_off_attrib;
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PUBLISHED:
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static int get_class_slot() {
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return _attrib_slot;
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}
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virtual int get_slot() const {
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return get_class_slot();
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}
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MAKE_PROPERTY(class_slot, get_class_slot);
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public:
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static void register_with_read_factory();
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virtual void write_datagram(BamWriter *manager, Datagram &dg);
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virtual int complete_pointers(TypedWritable **plist, BamReader *manager);
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protected:
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static TypedWritable *make_from_bam(const FactoryParams ¶ms);
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void fillin(DatagramIterator &scan, BamReader *manager);
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public:
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static TypeHandle get_class_type() {
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return _type_handle;
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}
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static void init_type() {
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RenderAttrib::init_type();
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register_type(_type_handle, "TextureAttrib",
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RenderAttrib::get_class_type());
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_attrib_slot = register_slot(_type_handle, 30, new TextureAttrib);
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}
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virtual TypeHandle get_type() const {
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return get_class_type();
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}
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virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
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private:
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static TypeHandle _type_handle;
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static int _attrib_slot;
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};
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#include "textureAttrib.I"
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#endif
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