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#pragma once
#include "ProceduralMaterial.h"
#include "SubstanceArchive.h"
#include "Texture2D.h"
#include "Runtime/Threads/Thread.h"
#include "Runtime/Threads/Mutex.h"
#include "Runtime/Threads/Semaphore.h"
#include <queue>
#include <algorithm>
#if ENABLE_SUBSTANCE
#include "External/Allegorithmic/builds/Engines/include/substance/handle.h"
#include "External/Allegorithmic/builds/Engines/include/substance/device.h"
class LoadProgress;
class SubstanceSystem
{
SubstanceDevice m_Device;
SubstanceContext* m_Context;
public:
SubstanceSystem ();
~SubstanceSystem ();
SubstanceContext* GetContext () { return m_Context; }
// Set the callback handling generated texture
// The default substance system is used when set to NULL
void SetOutputCallback(void* callback=NULL);
// State queries
bool AreQueuesEmpty();
bool AreIntegratingQueuesEmpty();
bool IsSubstanceProcessing(const ProceduralMaterial* substance);
// State wait
void WaitFinished(LoadProgress* progress = NULL);
void WaitFinished(const ProceduralMaterial* substance);
// Update substance system, called from the main thread
void Update(bool isQuitSignaled=false);
// Update substance system, called from the substance thread
// . generate queued substances
// . integrate substances
void UpdateThreaded();
// Queued updates coming from ProceduralMaterial
void QueueInput(ProceduralMaterial* material, std::string inputName, SubstanceValue& inputValue);
void QueueSubstance(ProceduralMaterial* material);
void QueueLoading(ProceduralMaterial* material);
void QueryClearCache(ProceduralMaterial* material);
static void * ThreadMain(void*data);
// Substance callbacks
static void* SUBSTANCE_CALLBACK OnMalloc(size_t bytesCount, size_t alignment=16);
static void SUBSTANCE_CALLBACK OnFree(void* bufferPtr);
static void SUBSTANCE_CALLBACK OnOutputCompleted(SubstanceHandle* _pHandle, unsigned int _OutputIndex, size_t _JobUserData);
static void SUBSTANCE_CALLBACK OnInputImageLock(SubstanceHandle* _pHandle, size_t _JobUserData, unsigned int _InputIndex, SubstanceTextureInput** _ppCurrentTextureInputDesc, const SubstanceTextureInput* _pPreferredTextureInputDesc);
static void SUBSTANCE_CALLBACK OnInputImageUnlock(SubstanceHandle* _pHandle, size_t _JobUserData, unsigned int _InputIndex, SubstanceTextureInput* _ppCurrentTextureInputDesc);
static void SUBSTANCE_CALLBACK OnOutOfMemory(SubstanceHandle *handle, int memoryType);
// Substance notifications
void NotifySubstanceCreation(ProceduralMaterial* substance);
void NotifySubstanceDestruction(ProceduralMaterial* substance);
void NotifyTextureDestruction(ProceduralTexture* texture);
void NotifyPackageDestruction(SubstanceArchive* package);
// Priority handling
void SetProcessorUsage(ProceduralProcessorUsage usage);
ProceduralProcessorUsage GetProcessorUsage() const { return m_ProcessorUsage; }
void ClearProcessingQueue();
// Queued substance data
struct Substance
{
ProceduralMaterial* material;
std::map<std::string, SubstanceValue> inputValues;
std::map<ProceduralTexture*, SubstanceTexture> updatedTextures;
};
std::map<unsigned int, ProceduralTexture*> processedTextures;
void ForceSubstanceResults(std::map<ProceduralTexture*, SubstanceTexture>& results);
// Memory budget management
void UpdateMemoryBudget();
// Context of generation which temporary set processor usage
class Context
{
public:
Context(ProceduralProcessorUsage usage);
~Context();
private:
ProceduralProcessorUsage m_OldProcessorUsage;
};
void BeginPreloading() { ++integrationTimeStamp; }
unsigned int integrationTimeStamp;
private:
void ApplyMemoryBudget(ProceduralMaterial* substance, bool requireMaximum, bool outOfMemory=false);
// Threaded integration / packing of substances
void Integrate();
// Substance queue helpers
struct QueueFinder
{
const ProceduralMaterial* m_Material;
QueueFinder(const ProceduralMaterial* material) : m_Material(material) {}
bool operator()(const Substance* substance) { return substance->material == m_Material; }
};
struct QueuePackageFinder
{
const SubstanceArchive* m_Package;
QueuePackageFinder(const SubstanceArchive* package) : m_Package(package) {}
bool operator()(const Substance* substance) { return substance->material->GetSubstancePackage()==m_Package; }
};
struct ArrayPackageFinder
{
const SubstanceArchive* m_Package;
ArrayPackageFinder(const SubstanceArchive* package) : m_Package(package) {}
bool operator()(const ProceduralMaterial* substance) { return substance->GetSubstancePackage()==m_Package; }
};
std::list<Substance*> waitingSubstanceQueue;
std::list<Substance*> processingSubstanceQueue;
std::list<Substance*> updatingSubstanceQueue;
std::vector<ProceduralMaterial*> integrationQueue;
Thread processingThread;
Mutex processingMutex;
Mutex updatingMutex;
Mutex processedMutex;
Mutex integrationMutex;
Mutex waitingMutex;
Substance* processedSubstance;
void* outputCallback;
ProceduralMaterial* lastProcessedSubstance;
Mutex lastProcessedSubstanceMutex;
std::vector<ProceduralMaterial*> animatedSubstanceArray;
ProceduralProcessorUsage m_ProcessorUsage;
ProceduralMaterial* queryClearCache;
Mutex deleteIntegrationMutex;
Mutex deletePingMutex;
bool isIntegrating;
Semaphore threadSemaphore;
static int s_maximumSubstancePerFrame;
};
SubstanceSystem& GetSubstanceSystem ();
SubstanceSystem* GetSubstanceSystemPtr ();
#endif
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