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/*
* Copyright (C) 2021 Linux Studio Plugins Project <https://lsp-plug.in/>
* (C) 2021 Vladimir Sadovnikov <sadko4u@gmail.com>
*
* This file is part of lsp-dsp-units
* Created on: 9 авг. 2021 г.
*
* lsp-dsp-units is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* lsp-dsp-units is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with lsp-dsp-units. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef LSP_PLUG_IN_DSP_UNITS_3D_SCENE3D_H_
#define LSP_PLUG_IN_DSP_UNITS_3D_SCENE3D_H_
#include <lsp-plug.in/dsp-units/version.h>
#include <lsp-plug.in/dsp-units/3d/types.h>
#include <lsp-plug.in/dsp-units/3d/Allocator3D.h>
#include <lsp-plug.in/dsp-units/3d/Object3D.h>
#include <lsp-plug.in/dsp/dsp.h>
#include <lsp-plug.in/runtime/LSPString.h>
#include <lsp-plug.in/lltl/parray.h>
#include <lsp-plug.in/io/Path.h>
#include <lsp-plug.in/io/IInStream.h>
#include <lsp-plug.in/io/IInSequence.h>
namespace lsp
{
namespace dspu
{
class Object3D;
/** 3D scene
*
*/
class LSP_DSP_UNITS_PUBLIC Scene3D
{
private:
Scene3D & operator = (const Scene3D &);
Scene3D(const Scene3D &);
protected:
lltl::parray<Object3D> vObjects;
Allocator3D<obj_vertex_t> vVertexes; // Vertex allocator
Allocator3D<obj_normal_t> vNormals; // Normal allocator
Allocator3D<obj_normal_t> vXNormals; // Extra normal allocator
Allocator3D<obj_edge_t> vEdges; // Edge allocator
Allocator3D<obj_triangle_t> vTriangles; // Triangle allocator
friend class Object3D;
private:
status_t do_clone(Scene3D *s);
status_t load_internal(io::IInStream *is, size_t flags, const char *charset);
status_t load_internal(io::IInSequence *is, size_t flags);
public:
/** Default constructor
*
*/
explicit Scene3D(size_t blk_size = 1024);
/** Destructor
*
*/
~Scene3D();
public:
/** Destroy scene
*
* @param recursive destroy attached objects
*/
void destroy();
/** Clear scene
*
*/
inline void clear() { destroy(); };
/**
* Clone contents from another scene
* @param src
*/
status_t clone_from(const Scene3D *src);
/**
* Swap contents with another scene
* @param scene scene to perform swap
*/
void swap(Scene3D *scene);
public:
/**
* Load scene from file
* @param path path to the file (UTF-8 string)
* @param charset character set of file contents
* @return status of operation
*/
status_t load(const char *path, const char *charset = NULL);
/**
* Load scene from file
* @param path path to the file
* @param charset character set of file contents
* @return status of operation
*/
status_t load(const LSPString *path, const char *charset = NULL);
/**
* Load scene from file
* @param path path to the file
* @param charset character set of file contents
* @return status of operation
*/
status_t load(const io::Path *path, const char *charset = NULL);
/**
* Load scene from input stream
* @param input stream
* @param charset character set of file contents
* @param flags wrapping flags
* @return status of operation
*/
status_t load(io::IInStream *is, size_t flags = WRAP_NONE, const char *charset = NULL);
/**
* Load scene from input sequence
* @param input sequence
* @param flags wrapping flags
* @return status of operation
*/
status_t load(io::IInSequence *is, size_t flags = WRAP_NONE);
public:
/**
* Do some post-processing after loading scene from file
*/
void postprocess_after_loading();
/** Return number of objects in scene
*
* @return number of objects in scene
*/
inline size_t num_objects() const { return vObjects.size(); }
/**
* Return number of vertexes in scene
* @return number of vertexes in scene
*/
inline size_t num_vertexes() const { return vVertexes.size(); }
/**
* Return number of normals in scene
* @return number of normals in scene
*/
inline size_t num_normals() const { return vNormals.size(); }
/**
* Return number of edges in scene
* @return number of edges in scene
*/
inline size_t num_edges() const { return vEdges.size(); }
/**
* Return number of triangles in scene
* @return number of triangles in scene
*/
inline size_t num_triangles() const { return vTriangles.size(); }
/**
* Get object by it's index
* @param idx object index
* @return pointer to object or NULL
*/
inline Object3D *object(size_t idx) { return vObjects.get(idx); }
/**
* Get object index
* @param obj object index
* @return object index
*/
size_t index_of(Object3D *obj) { return vObjects.index_of(obj); }
/**
* Get vertex by specified index
* @param idx vertex index
* @return vertex or NULL
*/
inline obj_vertex_t *vertex(size_t idx) { return vVertexes.get(idx); }
/**
* Get normal by specified index
* @param idx normal index
* @return normal or NULL
*/
inline obj_normal_t *normal(size_t idx)
{
return (idx < vNormals.size()) ?
vNormals.get(idx) :
vXNormals.get(idx - vNormals.size());
}
/**
* Get edge by specified index
* @param idx edge index
* @return edge or NULL
*/
inline obj_edge_t *edge(size_t idx) { return vEdges.get(idx); }
/**
* Get triangle by specified index
* @param idx triangle index
* @return triangle or NULL
*/
inline obj_triangle_t *triangle(size_t idx) { return vTriangles.get(idx); }
/**
* Add object
* @param name name of object
* @return pointer to object or NULL on error
*/
Object3D *add_object(const LSPString *name);
/**
* Add object with UTF8-encoded name
* @param utf8_name UTF8-encoded name
* @return pointer to object or NULL on error
*/
Object3D *add_object(const char *utf8_name);
/**
* Add vertex
* @param p vertex to add
* @return index of vertex or negative status of operation
*/
ssize_t add_vertex(const dsp::point3d_t *p);
/**
* Add vertex
* @param n normal to add
* @return index of normal or negative status of operation
*/
ssize_t add_normal(const dsp::vector3d_t *n);
/**
* Get object by it's index
* @param index object index
* @return pointer to object or NULL
*/
Object3D *get_object(size_t index) { return vObjects.get(index); }
/**
* Initialize all tags (prepare for data manipulations)
* @param ptag pointer tag
* @param itag integer tag
*/
void init_tags(void *ptag, ssize_t itag);
/**
* Get index of the object
* @param obj object to search for
* @return index of object
*/
inline ssize_t get_object_index(Object3D *obj) { return vObjects.index_of(obj); }
/**
* Validate scene consistence
* @return true if scene is self-consistent
*/
bool validate();
};
}
}
#endif /* LSP_PLUG_IN_DSP_UNITS_3D_SCENE3D_H_ */
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