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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: 10 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_RAYTRACE3D_H_
#define LSP_PLUG_IN_DSP_UNITS_3D_RAYTRACE3D_H_
#include <lsp-plug.in/dsp-units/version.h>
#include <lsp-plug.in/dsp-units/sampling/Sample.h>
#include <lsp-plug.in/dsp-units/3d/rt/types.h>
#include <lsp-plug.in/dsp-units/3d/rt/context.h>
#include <lsp-plug.in/dsp-units/3d/raytrace.h>
#include <lsp-plug.in/dsp/dsp.h>
#include <lsp-plug.in/common/status.h>
#include <lsp-plug.in/ipc/Thread.h>
#include <lsp-plug.in/ipc/Mutex.h>
#include <lsp-plug.in/lltl/parray.h>
#include <lsp-plug.in/lltl/darray.h>
namespace lsp
{
namespace dspu
{
/** Ray tracing storage implemented as a stack
*
*/
class LSP_DSP_UNITS_PUBLIC RayTrace3D
{
protected:
typedef struct sample_t
{
Sample *sample;
size_t channel;
ssize_t r_min;
ssize_t r_max;
} sample_t;
typedef struct rt_binding_t
{
lltl::darray<sample_t> bindings; // Capture bindings
} rt_binding_t;
typedef struct capture_t: public rt_capture_settings_t
{
dsp::vector3d_t direction; // Direction
dsp::bound_box3d_t bbox; // Bounding box
lltl::darray<rt::triangle_t> mesh; // Mesh associated with capture
lltl::darray<sample_t> bindings; // Capture bindings
} capture_t;
typedef struct rt_object_t
{
dsp::bound_box3d_t bbox;
lltl::darray<rtx::triangle_t> mesh;
lltl::darray<rtx::edge_t> plan;
} rt_object_t;
typedef struct stats_t
{
uint64_t root_tasks;
uint64_t local_tasks;
uint64_t calls_scan;
uint64_t calls_cull;
uint64_t calls_split;
uint64_t calls_cullback;
uint64_t calls_reflect;
uint64_t calls_capture;
} stats_t;
protected:
class TaskThread: public ipc::Thread
{
private:
RayTrace3D *trace;
stats_t stats;
lltl::parray<rt::context_t> tasks;
lltl::parray<rt_binding_t> bindings; // Bindings
lltl::parray<rt_object_t> objects;
ssize_t heavy_state;
protected:
status_t main_loop();
status_t process_context(rt::context_t *ctx);
status_t copy_objects(lltl::parray<rt_object_t> *src);
status_t scan_objects(rt::context_t *ctx);
status_t cull_view(rt::context_t *ctx);
status_t split_view(rt::context_t *ctx);
status_t cullback_view(rt::context_t *ctx);
status_t reflect_view(rt::context_t *ctx);
status_t capture(capture_t *capture, lltl::darray<sample_t> *bindings, const rt::view_t *v);
status_t generate_root_mesh();
status_t generate_capture_mesh(size_t id, capture_t *c);
status_t generate_object_mesh(ssize_t id, rt_object_t *o, rt::mesh_t *src, Object3D *obj, const dsp::matrix3d_t *m);
status_t generate_tasks(lltl::parray<rt::context_t> *tasks, float initial);
status_t check_object(rt::context_t *ctx, Object3D *obj, const dsp::matrix3d_t *m);
status_t submit_task(rt::context_t *ctx);
public:
explicit TaskThread(RayTrace3D *trace);
virtual ~TaskThread();
public:
status_t prepare_main_loop(float initial);
status_t prepare_captures();
status_t prepare_supplementary_loop(TaskThread *t);
virtual status_t run();
status_t merge_result();
inline stats_t *get_stats() { return &stats; }
};
private:
lltl::darray<rt::material_t> vMaterials;
lltl::darray<rt_source_settings_t> vSources;
lltl::parray<capture_t> vCaptures;
Scene3D *pScene;
rt::progress_func_t pProgress;
void *pProgressData;
size_t nSampleRate;
float fEnergyThresh;
float fTolerance;
float fDetalization;
bool bNormalize;
volatile bool bCancelled;
volatile bool bFailed;
lltl::parray<rt::context_t> vTasks;
size_t nQueueSize;
size_t nProgressPoints;
size_t nProgressMax;
ipc::Mutex lkTasks;
protected:
static void destroy_tasks(lltl::parray<rt::context_t> *tasks);
static void destroy_objects(lltl::parray<rt_object_t> *objects);
static void clear_stats(stats_t *stats);
static void dump_stats(const char *label, const stats_t *stats);
static void merge_stats(stats_t *dst, const stats_t *src);
static bool check_bound_box(const dsp::bound_box3d_t *bbox, const rt::view_t *view);
void remove_scene(bool destroy);
status_t resize_materials(size_t objects);
status_t report_progress(float progress);
// Main ray-tracing routines
void normalize_output();
bool is_already_passed(const sample_t *bind);
status_t do_process(size_t threads, float initial);
public:
/** Default constructor
*
*/
explicit RayTrace3D();
/** Destructor
*
*/
~RayTrace3D();
public:
/**
* Initialize raytrace object
*/
status_t init();
/** Destroy the ray tracing processor state
* @param recursive destroy the currently used scene object
*/
void destroy(bool recursive=false);
/**
* Set scene object
* @param scene scene object to set
* @param destroy destroy previously used scene
* @return status of operation
*/
status_t set_scene(Scene3D *scene, bool destroy=true);
/**
* Set/clear progress callback
* @param callback callback routine to report progress
* @param data data that will be passed to callback routine
* @return status of operation
*/
status_t set_progress_callback(rt::progress_func_t callback, void *data);
/**
* Clear progress callback
* @return status of operation
*/
status_t clear_progress_callback();
/**
* Set the material for the corresponding object
* @param idx the index of the material
* @return status of operation
*/
status_t set_material(size_t idx, const rt::material_t *material);
/**
* Get the material for the corresponding object
* @param material
* @param idx the index of the corresponding object
* @return pointer to material or NULL
*/
status_t get_material(rt::material_t *material, size_t idx);
/**
* Get the scene object
* @param idx scene object
* @return object pointer or NULL
*/
inline Object3D *object(size_t idx) { return (pScene != NULL) ? pScene->get_object(idx) : NULL; }
/**
* Set sample rate
* @param sr sample rate
*/
inline void set_sample_rate(size_t sr) { nSampleRate = sr; }
/**
* Get sample rate
* @return sample rate
*/
inline size_t get_sample_rate() const { return nSampleRate; }
/**
* Add audio source
* @param settings source settings
* @return status of operation
*/
status_t add_source(const rt_source_settings_t *settings);
/**
* Add audio capture
* @param settings capture settings
* @return non-negative capture identifier or negative error status code
*/
ssize_t add_capture(const rt_capture_settings_t *settings);
/**
* Bind audio sample to capture
* @param id capture identifier
* @param sample audio sample to bind
* @param channel number of channel of the sample that will be modified by capture
* @param r_min the minimum reflection index, negative value for any
* @param r_max the maximum reflection index, negative value for any
* @return status of operation
*/
status_t bind_capture(size_t id, Sample *sample, size_t channel, ssize_t r_min, ssize_t r_max);
/** Remove all audio sources
*
*/
inline void clear_sources() { vSources.flush(); };
/** Remove all audio captures
*
*/
inline void clear_captures() { vCaptures.flush(); };
inline float get_energy_threshold() const { return fEnergyThresh; }
void set_energy_threshold(float thresh) { fEnergyThresh = thresh; }
inline float get_tolerance() const { return fTolerance; }
inline float get_detalization() const { return fDetalization; }
void set_tolerance(float tolerance) { fTolerance = tolerance; }
void set_detalization(float detail) { fDetalization = detail; }
inline bool get_normalize() const { return bNormalize; };
inline void set_normalize(bool normalize) { bNormalize = normalize; };
/**
* This method indicates that the cancel request was sent to
* the processor, RT-safe method
* @return true if cancel request was sent to processor
*/
inline bool cancelled() const { return bCancelled; }
/**
* This method allows to cancel the execution of process() method by
* another thread, RT-safe method
*/
void cancel() { if (!bCancelled) bCancelled = true; }
/**
* Perform processing, non-RT-safe, should be launched in a thread
* @param threads number of threads used for processing
* @param initial initial energy of the signal
* @return status of operation
*/
status_t process(size_t threads, float initial);
};
} // namespace dspu
} // namespace lsp
#endif /* LSP_PLUG_IN_DSP_UNITS_3D_RAYTRACE3D_H_ */
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