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fractorium/Source/EmberCL/RendererCL.h
mfeemster 018ba26b5f --User changes 
-Add support for multiple GPU devices.
  --These options are present in the command line and in Fractorium.
 -Change scheme of specifying devices from platform,device to just total device index.
  --Single number on the command line.
  --Change from combo boxes for device selection to a table of all devices in Fractorium.
 -Temporal samples defaults to 100 instead of 1000 which was needless overkill.

--Bug fixes
 -EmberAnimate, EmberRender, FractoriumSettings, FinalRenderDialog: Fix wrong order of arguments to Clamp() when assigning thread priority.
 -VariationsDC.h: Fix NVidia OpenCL compilation error in DCTriangleVariation.
 -FractoriumXformsColor.cpp: Checking for null pixmap pointer is not enough, must also check if the underlying buffer is null via call to QPixmap::isNull().

--Code changes
 -Ember.h: Add case for FLAME_MOTION_NONE and default in ApplyFlameMotion().
 -EmberMotion.h: Call base constructor.
 -EmberPch.h: #pragma once only on Windows.
 -EmberToXml.h:
  --Handle different types of exceptions.
  --Add default cases to ToString().
 -Isaac.h: Remove unused variable in constructor.
 -Point.h: Call base constructor in Color().
 -Renderer.h/cpp:
  --Add bool to Alloc() to only allocate memory for the histogram. Needed for multi-GPU.
  --Make CoordMap() return a const ref, not a pointer.
 -SheepTools.h:
  --Use 64-bit types like the rest of the code already does.
  --Fix some comment misspellings.
 -Timing.h: Make BeginTime(), EndTime(), ElapsedTime() and Format() be const functions.
 -Utils.h:
  --Add new functions Equal() and Split().
  --Handle more exception types in ReadFile().
  --Get rid of most legacy blending of C and C++ argument parsing.
 -XmlToEmber.h:
  --Get rid of most legacy blending of C and C++ code from flam3.
  --Remove some unused variables.
 -EmberAnimate:
  --Support multi-GPU processing that alternates full frames between devices.
  --Use OpenCLInfo instead of OpenCLWrapper for --openclinfo option.
  --Remove bucketT template parameter, and hard code float in its place.
  --If a render fails, exit since there is no point in continuing an animation with a missing frame.
  --Pass variables to threaded save better, which most likely fixes a very subtle bug that existed before.
  --Remove some unused variables.
 -EmberGenome, EmberRender:
  --Support multi-GPU processing that alternates full frames between devices.
  --Use OpenCLInfo instead of OpenCLWrapper for --openclinfo option.
  --Remove bucketT template parameter, and hard code float in its place.
 -EmberRender:
  --Support multi-GPU processing that alternates full frames between devices.
  --Use OpenCLInfo instead of OpenCLWrapper for --openclinfo option.
  --Remove bucketT template parameter, and hard code float in its place.
  --Only print values when not rendering with OpenCL, since they're always 0 in that case.
 -EmberCLPch.h:
  --#pragma once only on Windows.
  --#include <atomic>.
 -IterOpenCLKernelCreator.h: Add new kernel for summing two histograms. This is needed for multi-GPU.
 -OpenCLWrapper.h:
  --Move all OpenCL info related code into its own class OpenCLInfo.
  --Add members to cache the values of global memory size and max allocation size.
 -RendererCL.h/cpp:
  --Redesign to accomodate multi-GPU.
  --Constructor now takes a vector of devices.
  --Remove DumpErrorReport() function, it's handled in the base.
  --ClearBuffer(), ReadPoints(), WritePoints(), ReadHist() and WriteHist() now optionally take a device index as a parameter.
  --MakeDmap() override and m_DmapCL member removed because it no longer applies since the histogram is always float since the last commit.
  --Add new function SumDeviceHist() to sum histograms from two devices by first copying to a temporary on the host, then a temporary on the device, then summing.
  --m_Calls member removed, as it's now per-device.
  --OpenCLWrapper removed.
  --m_Seeds member is now a vector of vector of seeds, to accomodate a separate and different array of seeds for each device.
  --Added member m_Devices, a vector of unique_ptr of RendererCLDevice.
 -EmberCommon.h
  --Added Devices() function to convert from a vector of device indices to a vector of platform,device indices.
  --Changed CreateRenderer() to accept a vector of devices to create a single RendererCL which will split work across multiple devices.
  --Added CreateRenderers() function to accept a vector of devices to create multiple RendererCL, each which will render on a single device.
  --Add more comments to some existing functions.
 -EmberCommonPch.h: #pragma once only on Windows.
 -EmberOptions.h:
  --Remove --platform option, it's just sequential device number now with the --device option.
  --Make --out be OPT_USE_RENDER instead of OPT_RENDER_ANIM since it's an error condition when animating. It makes no sense to write all frames to a single image.
  --Add Devices() function to parse comma separated --device option string and return a vector of device indices.
  --Make int and uint types be 64-bit, so intmax_t and size_t.
  --Make better use of macros.
 -JpegUtils.h: Make string parameters to WriteJpeg() and WritePng() be const ref.
 -All project files: Turn off buffer security check option in Visual Studio (/Gs-)
 -deployment.pri: Remove the line OTHER_FILES +=, it's pointless and was causing problems.
 -Ember.pro, EmberCL.pro: Add CONFIG += plugin, otherwise it wouldn't link.
 -EmberCL.pro: Add new files for multi-GPU support.
 -build_all.sh: use -j4 and QMAKE=${QMAKE:/usr/bin/qmake}
 -shared_settings.pri:
  -Add version string.
  -Remove old DESTDIR definitions.
  -Add the following lines or else nothing would build:
   CONFIG(release, debug|release) {
    CONFIG += warn_off
    DESTDIR = ../../../Bin/release
   }

   CONFIG(debug, debug|release) {
    DESTDIR = ../../../Bin/debug
   }

   QMAKE_POST_LINK += $$quote(cp --update ../../../Data/flam3-palettes.xml $${DESTDIR}$$escape_expand(\n\t))
   LIBS += -L/usr/lib -lpthread
 -AboutDialog.ui: Another futile attempt to make it look correct on Linux.
 -FinalRenderDialog.h/cpp:
  --Add support for multi-GPU.
  --Change from combo boxes for device selection to a table of all devices.
  --Ensure device selection makes sense.
  --Remove "FinalRender" prefix of various function names, it's implied given the context.
 -FinalRenderEmberController.h/cpp:
  --Add support for multi-GPU.
  --Change m_FinishedImageCount to be atomic.
  --Move CancelRender() from the base to FinalRenderEmberController<T>.
  --Refactor RenderComplete() to omit any progress related functionality or image saving since it can be potentially ran in a thread.
  --Consolidate setting various renderer fields into SyncGuiToRenderer().
 -Fractorium.cpp: Allow for resizing of the options dialog to show the entire device table.
 -FractoriumCommon.h: Add various functions to handle a table showing the available OpenCL devices on the system.
 -FractoriumEmberController.h/cpp: Remove m_FinalImageIndex, it's no longer needed.
 -FractoriumRender.cpp: Scale the interactive sub batch count and quality by the number of devices used.
 -FractoriumSettings.h/cpp:
  --Temporal samples defaults to 100 instead of 1000 which was needless overkill.
  --Add multi-GPU support, remove old device,platform pair.
 -FractoriumToolbar.cpp: Disable OpenCL toolbar button if there are no devices present on the system.
 -FractoriumOptionsDialog.h/cpp:
  --Add support for multi-GPU.
  --Consolidate more assignments in DataToGui().
  --Enable/disable CPU/OpenCL items in response to OpenCL checkbox event.
 -Misc: Convert almost everything to size_t for unsigned, intmax_t for signed.
2015-09-12 18:33:45 -07:00

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#pragma once
#include "EmberCLPch.h"
#include "OpenCLWrapper.h"
#include "DEOpenCLKernelCreator.h"
#include "FinalAccumOpenCLKernelCreator.h"
#include "RendererClDevice.h"
/// <summary>
/// RendererCLBase and RendererCL classes.
/// </summary>
namespace EmberCLns
{
/// <summary>
/// Serves only as an interface for OpenCL specific rendering functions.
/// </summary>
class EMBERCL_API RendererCLBase
{
public:
virtual ~RendererCLBase() { }
virtual bool ReadFinal(byte* pixels) = 0;
virtual bool ClearFinal() = 0;
};
/// <summary>
/// RendererCL is a derivation of the basic CPU renderer which
/// overrides various functions to render on the GPU using OpenCL.
/// This supports multi-GPU rendering and is done in the following manner:
/// -When rendering a single image, the iterations will be split between devices in sub batches.
/// -When animating, a renderer for each device will be created by the calling code,
/// and the frames will each be rendered by a single device as available.
/// The synchronization across devices is done through a single atomic counter.
/// Since this class derives from EmberReport and also contains an
/// OpenCLWrapper member which also derives from EmberReport, the
/// reporting functions are overridden to aggregate the errors from
/// both sources.
/// Template argument T expected to be float or double.
/// Template argument bucketT must always be float.
/// </summary>
template <typename T, typename bucketT>
class EMBERCL_API RendererCL : public Renderer<T, bucketT>, public RendererCLBase
{
using EmberNs::Renderer<T, bucketT>::RendererBase::Abort;
using EmberNs::Renderer<T, bucketT>::RendererBase::EarlyClip;
using EmberNs::Renderer<T, bucketT>::RendererBase::Transparency;
using EmberNs::Renderer<T, bucketT>::RendererBase::EnterResize;
using EmberNs::Renderer<T, bucketT>::RendererBase::LeaveResize;
using EmberNs::Renderer<T, bucketT>::RendererBase::FinalRasW;
using EmberNs::Renderer<T, bucketT>::RendererBase::FinalRasH;
using EmberNs::Renderer<T, bucketT>::RendererBase::SuperRasW;
using EmberNs::Renderer<T, bucketT>::RendererBase::SuperRasH;
using EmberNs::Renderer<T, bucketT>::RendererBase::SuperSize;
using EmberNs::Renderer<T, bucketT>::RendererBase::BytesPerChannel;
using EmberNs::Renderer<T, bucketT>::RendererBase::TemporalSamples;
using EmberNs::Renderer<T, bucketT>::RendererBase::ItersPerTemporalSample;
using EmberNs::Renderer<T, bucketT>::RendererBase::FuseCount;
using EmberNs::Renderer<T, bucketT>::RendererBase::DensityFilterOffset;
using EmberNs::Renderer<T, bucketT>::RendererBase::m_ProgressParameter;
using EmberNs::Renderer<T, bucketT>::RendererBase::m_YAxisUp;
using EmberNs::Renderer<T, bucketT>::RendererBase::m_LockAccum;
using EmberNs::Renderer<T, bucketT>::RendererBase::m_Abort;
using EmberNs::Renderer<T, bucketT>::RendererBase::m_NumChannels;
using EmberNs::Renderer<T, bucketT>::RendererBase::m_LastIter;
using EmberNs::Renderer<T, bucketT>::RendererBase::m_LastIterPercent;
using EmberNs::Renderer<T, bucketT>::RendererBase::m_Stats;
using EmberNs::Renderer<T, bucketT>::RendererBase::m_Callback;
using EmberNs::Renderer<T, bucketT>::RendererBase::m_Rand;
using EmberNs::Renderer<T, bucketT>::RendererBase::m_RenderTimer;
using EmberNs::Renderer<T, bucketT>::RendererBase::m_IterTimer;
using EmberNs::Renderer<T, bucketT>::RendererBase::m_ProgressTimer;
using EmberNs::Renderer<T, bucketT>::RendererBase::EmberReport::m_ErrorReport;
using EmberNs::Renderer<T, bucketT>::RendererBase::m_ResizeCs;
using EmberNs::Renderer<T, bucketT>::RendererBase::m_ProcessAction;
using EmberNs::Renderer<T, bucketT>::m_RotMat;
using EmberNs::Renderer<T, bucketT>::m_Ember;
using EmberNs::Renderer<T, bucketT>::m_Csa;
using EmberNs::Renderer<T, bucketT>::m_CurvesSet;
using EmberNs::Renderer<T, bucketT>::CenterX;
using EmberNs::Renderer<T, bucketT>::CenterY;
using EmberNs::Renderer<T, bucketT>::K1;
using EmberNs::Renderer<T, bucketT>::K2;
using EmberNs::Renderer<T, bucketT>::Supersample;
using EmberNs::Renderer<T, bucketT>::HighlightPower;
using EmberNs::Renderer<T, bucketT>::HistBuckets;
using EmberNs::Renderer<T, bucketT>::AccumulatorBuckets;
using EmberNs::Renderer<T, bucketT>::GetDensityFilter;
using EmberNs::Renderer<T, bucketT>::GetSpatialFilter;
using EmberNs::Renderer<T, bucketT>::CoordMap;
using EmberNs::Renderer<T, bucketT>::XformDistributions;
using EmberNs::Renderer<T, bucketT>::XformDistributionsSize;
using EmberNs::Renderer<T, bucketT>::m_Dmap;
using EmberNs::Renderer<T, bucketT>::m_DensityFilter;
using EmberNs::Renderer<T, bucketT>::m_SpatialFilter;
public:
RendererCL(const vector<pair<size_t, size_t>>& devices, bool shared = false, GLuint outputTexID = 0);
~RendererCL();
//Non-virtual member functions for OpenCL specific tasks.
bool Init(const vector<pair<size_t, size_t>>& devices, bool shared, GLuint outputTexID);
bool SetOutputTexture(GLuint outputTexID);
//Iters per kernel/block/grid.
inline size_t IterCountPerKernel() const;
inline size_t IterCountPerBlock() const;
inline size_t IterCountPerGrid() const;
//Kernels per block.
inline size_t IterBlockKernelWidth() const;
inline size_t IterBlockKernelHeight() const;
inline size_t IterBlockKernelCount() const;
//Kernels per grid.
inline size_t IterGridKernelWidth() const;
inline size_t IterGridKernelHeight() const;
inline size_t IterGridKernelCount() const;
//Blocks per grid.
inline size_t IterGridBlockWidth() const;
inline size_t IterGridBlockHeight() const;
inline size_t IterGridBlockCount() const;
bool ReadHist(size_t device);
bool ReadAccum();
bool ReadPoints(size_t device, vector<PointCL<T>>& vec);
bool ClearHist();
bool ClearHist(size_t device);
bool ClearAccum();
bool WritePoints(size_t device, vector<PointCL<T>>& vec);
#ifdef TEST_CL
bool WriteRandomPoints();
#endif
const string& IterKernel() const;
const string& DEKernel() const;
const string& FinalAccumKernel() const;
//Virtual functions overridden from RendererCLBase.
virtual bool ReadFinal(byte* pixels);
virtual bool ClearFinal();
//Public virtual functions overridden from Renderer or RendererBase.
virtual size_t MemoryAvailable() override;
virtual bool Ok() const override;
virtual void NumChannels(size_t numChannels) override;
virtual void ClearErrorReport() override;
virtual size_t SubBatchSize() const override;
virtual size_t ThreadCount() const override;
virtual bool CreateDEFilter(bool& newAlloc) override;
virtual bool CreateSpatialFilter(bool& newAlloc) override;
virtual eRendererType RendererType() const override;
virtual string ErrorReportString() override;
virtual vector<string> ErrorReport() override;
virtual bool RandVec(vector<QTIsaac<ISAAC_SIZE, ISAAC_INT>>& randVec) override;
#ifndef TEST_CL
protected:
#endif
//Protected virtual functions overridden from Renderer.
virtual bool Alloc(bool histOnly = false) override;
virtual bool ResetBuckets(bool resetHist = true, bool resetAccum = true) override;
virtual eRenderStatus LogScaleDensityFilter() override;
virtual eRenderStatus GaussianDensityFilter() override;
virtual eRenderStatus AccumulatorToFinalImage(byte* pixels, size_t finalOffset) override;
virtual EmberStats Iterate(size_t iterCount, size_t temporalSample) override;
#ifndef TEST_CL
private:
#endif
void Init();
//Private functions for making and running OpenCL programs.
bool BuildIterProgramForEmber(bool doAccum = true);
bool RunIter(size_t iterCount, size_t temporalSample, size_t& itersRan);
eRenderStatus RunLogScaleFilter();
eRenderStatus RunDensityFilter();
eRenderStatus RunFinalAccum();
bool ClearBuffer(size_t device, const string& bufferName, uint width, uint height, uint elementSize);
bool RunDensityFilterPrivate(size_t kernelIndex, size_t gridW, size_t gridH, size_t blockW, size_t blockH, uint chunkSizeW, uint chunkSizeH, uint chunkW, uint chunkH);
int MakeAndGetDensityFilterProgram(size_t ss, uint filterWidth);
int MakeAndGetFinalAccumProgram(double& alphaBase, double& alphaScale);
int MakeAndGetGammaCorrectionProgram();
bool SumDeviceHist();
void FillSeeds();
//Private functions passing data to OpenCL programs.
void ConvertDensityFilter();
void ConvertSpatialFilter();
void ConvertEmber(Ember<T>& ember, EmberCL<T>& emberCL, vector<XformCL<T>>& xformsCL);
void ConvertCarToRas(const CarToRas<T>& carToRas);
bool m_Init;
bool m_DoublePrecision;
size_t m_IterCountPerKernel;
size_t m_IterBlocksWide, m_IterBlockWidth;
size_t m_IterBlocksHigh, m_IterBlockHeight;
size_t m_MaxDEBlockSizeW;
size_t m_MaxDEBlockSizeH;
//Buffer names.
string m_EmberBufferName;
string m_XformsBufferName;
string m_ParVarsBufferName;
string m_SeedsBufferName;
string m_DistBufferName;
string m_CarToRasBufferName;
string m_DEFilterParamsBufferName;
string m_SpatialFilterParamsBufferName;
string m_CurvesCsaName;
string m_DECoefsBufferName;
string m_DEWidthsBufferName;
string m_DECoefIndicesBufferName;
string m_SpatialFilterCoefsBufferName;
string m_HistBufferName;
string m_AccumBufferName;
string m_FinalImageName;
string m_PointsBufferName;
//Kernels.
string m_IterKernel;
cl::ImageFormat m_PaletteFormat;
cl::ImageFormat m_FinalFormat;
cl::Image2D m_Palette;
IMAGEGL2D m_AccumImage;
GLuint m_OutputTexID;
EmberCL<T> m_EmberCL;
vector<XformCL<T>> m_XformsCL;
vector<vector<glm::highp_uvec2>> m_Seeds;
CarToRasCL<T> m_CarToRasCL;
DensityFilterCL<bucketT> m_DensityFilterCL;
SpatialFilterCL<bucketT> m_SpatialFilterCL;
IterOpenCLKernelCreator<T> m_IterOpenCLKernelCreator;
DEOpenCLKernelCreator m_DEOpenCLKernelCreator;
FinalAccumOpenCLKernelCreator m_FinalAccumOpenCLKernelCreator;
pair<string, vector<T>> m_Params;
vector<unique_ptr<RendererClDevice>> m_Devices;
Ember<T> m_LastBuiltEmber;
};
}
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