overte-Armored-Dragon/libraries/render/src/render/DrawTask.h
2015-06-17 15:52:11 +02:00

303 lines
9.6 KiB
C++
Executable file

//
// DrawTask.h
// render/src/render
//
// Created by Sam Gateau on 5/21/15.
// Copyright 20154 High Fidelity, Inc.
//
// Distributed under the Apache License, Version 2.0.
// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
//
#ifndef hifi_render_Task_h
#define hifi_render_Task_h
#include "Engine.h"
namespace render {
template <class T> void jobRun(T& jobModel, const SceneContextPointer& sceneContext, const RenderContextPointer& renderContext) {
jobModel.run(sceneContext, renderContext);
}
template <class T, class I> void jobRunI(T& jobModel, const SceneContextPointer& sceneContext, const RenderContextPointer& renderContext, const I& input) {
jobModel.run(sceneContext, renderContext, input);
}
template <class T, class O> void jobRunO(T& jobModel, const SceneContextPointer& sceneContext, const RenderContextPointer& renderContext, O& output) {
jobModel.run(sceneContext, renderContext, output);
}
template <class T, class I, class O> void jobRunIO(T& jobModel, const SceneContextPointer& sceneContext, const RenderContextPointer& renderContext, const I& input, O& output) {
jobModel.run(sceneContext, renderContext, input, output);
}
template <class T> void jobRun(T& jobModel, const SceneContextPointer& sceneContext, const RenderContextPointer& renderContext) {
jobModel.run(sceneContext, renderContext);
}
template <class T, class I> void jobRunI(T& jobModel, const SceneContextPointer& sceneContext, const RenderContextPointer& renderContext, const I& input) {
jobModel.run(sceneContext, renderContext, input);
}
template <class T, class O> void jobRunO(T& jobModel, const SceneContextPointer& sceneContext, const RenderContextPointer& renderContext, O& output) {
jobModel.run(sceneContext, renderContext, output);
}
template <class T, class I, class O> void jobRunIO(T& jobModel, const SceneContextPointer& sceneContext, const RenderContextPointer& renderContext, const I& input, O& output) {
jobModel.run(sceneContext, renderContext, input, output);
}
class Job {
public:
// Varying represent a varying piece of data
class Varying {
public:
Varying(const Varying& var): _concept(var._concept) {}
Varying() {}
template <class T>
Varying(const T& data) : _concept(new Job::Varying::Model<T>(data)) {}
// Access the _data contained win the concept explicitely
template <class T> T& edit() { return (static_cast<Model<T>*> (_concept.get())->_data); }
template <class T> const T& get() const { return (static_cast<const Model<T>*> (_concept.get())->_data); }
protected:
friend class Job;
std::vector<std::weak_ptr<Job>> _consumerJobs;
void addJobConsumer(const std::shared_ptr<Job>& job) {
_consumerJobs.push_back(job);
}
class Concept {
public:
virtual ~Concept() = default;
};
template <class T> class Model : public Concept {
public:
typedef T Data;
Data _data;
Model(const Model& source): _data(source.data) {}
Model(const Data& data): _data(data) {}
virtual ~Model() {}
};
std::shared_ptr<Concept> _concept;
};
Job(const Job& other) : _concept(other._concept) {}
~Job();
const std::string& getName() const { return _concept->getName(); }
const Varying getInput() const { return _concept->getInput(); }
const Varying getOutput() const { return _concept->getOutput(); }
void run(const SceneContextPointer& sceneContext, const RenderContextPointer& renderContext) {
if (_concept) {
_concept->run(sceneContext, renderContext);
}
}
protected:
public:
class Concept {
public:
virtual ~Concept() = default;
virtual const std::string getName() const = 0;
virtual const Varying getInput() const { return Varying(); }
virtual const Varying getOutput() const { return Varying(); }
virtual void run(const SceneContextPointer& sceneContext, const RenderContextPointer& renderContext) = 0;
};
Job(Concept* concept) : _concept(concept) {}
public:
template <class T> class Model : public Concept {
public:
typedef T Data;
Data _data;
Model() {}
Model(Data data): _data(data) {}
void run(const SceneContextPointer& sceneContext, const RenderContextPointer& renderContext) { jobRun(_data, sceneContext, renderContext); }
};
template <class T, class I> class ModelI : public Concept {
public:
typedef T Data;
typedef I Input;
Data _data;
Varying _input;
const Varying getInput() const { return _input; }
ModelI(const Varying& input): _input(input) {}
ModelI(Data data): _data(data) {}
void run(const SceneContextPointer& sceneContext, const RenderContextPointer& renderContext) { jobRunI(_data, sceneContext, renderContext, _input.get<I>()); }
};
template <class T, class O> class ModelO : public Concept {
public:
typedef T Data;
typedef O Output;
Data _data;
Varying _output;
const Varying getOutput() const { return _output; }
ModelO() : _output(Output()) {
}
ModelO(Data data): _data(data), _output(Output()) {}
void run(const SceneContextPointer& sceneContext, const RenderContextPointer& renderContext) {
jobRunO(_data, sceneContext, renderContext, _output.edit<O>());
}
};
template <class T, class I, class O> class ModelIO : public Concept {
public:
typedef T Data;
typedef I Input;
typedef O Output;
Data _data;
Varying _input;
Varying _output;
const Varying getInput() const { return _input; }
const Varying getOutput() const { return _output; }
ModelIO(const Varying& input): _input(input), _output(Output()) {}
ModelIO(Data data, Output output): _data(data), _output(output) {}
void setInput(const Varying& input) { _input = input; }
void run(const SceneContextPointer& sceneContext, const RenderContextPointer& renderContext) { jobRunIO(_data, sceneContext, renderContext, _input.get<I>(), _output.edit<O>()); }
};
std::shared_ptr<Concept> _concept;
};
typedef std::vector<Job> Jobs;
void cullItems(const SceneContextPointer& sceneContext, const RenderContextPointer& renderContext, const ItemIDsBounds& inItems, ItemIDsBounds& outITems);
void depthSortItems(const SceneContextPointer& sceneContext, const RenderContextPointer& renderContext, bool frontToBack, const ItemIDsBounds& inItems, ItemIDsBounds& outITems);
void renderItems(const SceneContextPointer& sceneContext, const RenderContextPointer& renderContext, const ItemIDsBounds& inItems, int maxDrawnItems = -1);
class FetchItems {
public:
FetchItems() {}
FetchItems(const ItemFilter& filter): _filter(filter) {}
ItemFilter _filter = ItemFilter::Builder::opaqueShape().withoutLayered();
void run(const SceneContextPointer& sceneContext, const RenderContextPointer& renderContext, ItemIDsBounds& outItems);
typedef Job::ModelO<FetchItems, ItemIDsBounds> JobModel;
};
class CullItems {
public:
void run(const SceneContextPointer& sceneContext, const RenderContextPointer& renderContext, const ItemIDsBounds& inItems, ItemIDsBounds& outItems);
typedef Job::ModelIO<CullItems, ItemIDsBounds, ItemIDsBounds> JobModel;
};
class DepthSortItems {
public:
bool _frontToBack = true;
void run(const SceneContextPointer& sceneContext, const RenderContextPointer& renderContext, const ItemIDsBounds& inItems, ItemIDsBounds& outITems);
typedef Job::ModelIO<DepthSortItems, ItemIDsBounds, ItemIDsBounds> JobModel;
};
class DrawOpaque {
public:
};
template <> void jobRun(DrawOpaque& job, const SceneContextPointer& sceneContext, const RenderContextPointer& renderContext);
class DrawTransparent {
public:
};
template <> void jobRun(DrawTransparent& job, const SceneContextPointer& sceneContext, const RenderContextPointer& renderContext);
class DrawLight {
public:
void run(const SceneContextPointer& sceneContext, const RenderContextPointer& renderContext);
typedef Job::Model<DrawLight> JobModel;
};
class DrawBackground {
public:
void run(const SceneContextPointer& sceneContext, const RenderContextPointer& renderContext);
typedef Job::Model<DrawBackground> JobModel;
};
class DrawPostLayered {
public:
void run(const SceneContextPointer& sceneContext, const RenderContextPointer& renderContext);
typedef Job::Model<DrawPostLayered> JobModel;
};
class ResetGLState {
public:
void run(const SceneContextPointer& sceneContext, const RenderContextPointer& renderContext);
typedef Job::Model<ResetGLState> JobModel;
};
class DrawSceneTask : public Task {
public:
DrawSceneTask();
~DrawSceneTask();
Jobs _jobs;
virtual void run(const SceneContextPointer& sceneContext, const RenderContextPointer& renderContext);
};
// A map of ItemIDs allowing to create bucket lists of SHAPE type items which are filtered by their
// Material
class ItemMaterialBucketMap : public std::map<model::MaterialFilter, ItemIDs, model::MaterialFilter::Less> {
public:
ItemMaterialBucketMap() {}
void insert(const ItemID& id, const model::MaterialKey& key);
// standard builders allocating the main buckets
void allocateStandardMaterialBuckets();
};
void materialSortItems(const SceneContextPointer& sceneContext, const RenderContextPointer& renderContext, const ItemIDsBounds& inItems, ItemIDsBounds& outItems);
}
#endif // hifi_render_Task_h