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https://bitbucket.org/mfeemster/fractorium.git
synced 2025-01-22 05:30:06 -05:00
a4aae06b02
-Add Simon Detheridge's name to the About Box. --Bug fixes -Fix bug in OpenCL atomic string, which is never used. -Wrong hist and accum allocation size in RendererCL when using float-only buffers now. -Move some kernel initialization to a place where it's done once per render, rather than on every interactive iter chunk. --Code changes -Make ConvertCarToRas() just assign to the member rather than return a struct. -Make kernel string accessor functions in IterOpenCLKernelCreator, FinalAccumOpenCLKernelCreator and DEOpenCLKernelCreator be const and return a const string reference. -Don't include atomic string unless locking on the GPU, which is never.
78 lines
2.3 KiB
C++
78 lines
2.3 KiB
C++
#pragma once
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#include "EmberCLPch.h"
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#include "EmberCLStructs.h"
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#include "EmberCLFunctions.h"
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/// <summary>
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/// DEOpenCLKernelCreator class.
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/// </summary>
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//#define ROW_ONLY_DE 1
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namespace EmberCLns
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{
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/// <summary>
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/// Kernel creator for density filtering.
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/// This implements both basic log scale filtering
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/// as well as the full flam3 density estimation filtering
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/// in OpenCL.
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/// Several conditionals are present in the CPU version. They
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/// are stripped out of the kernels and instead a separate kernel
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/// is created for every possible case.
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/// If the filter width is 9 or less, then the entire process can be
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/// done in shared memory which is very fast.
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/// However, if the filter width is greater than 9, shared memory is not
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/// used and all filtering is done directly with main global VRAM. This
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/// ends up being not much faster than doing it on the CPU.
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/// String members are kept for the program source and entry points
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/// for each version of the program.
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/// </summary>
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class EMBERCL_API DEOpenCLKernelCreator
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{
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public:
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DEOpenCLKernelCreator(bool doublePrecision, bool nVidia);
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//Accessors.
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const string& LogScaleAssignDEKernel() const;
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const string& LogScaleAssignDEEntryPoint() const;
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const string& GaussianDEKernel(size_t ss, uint filterWidth) const;
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const string& GaussianDEEntryPoint(size_t ss, uint filterWidth) const;
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//Miscellaneous static functions.
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static uint MaxDEFilterSize();
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static double SolveMaxDERad(uint maxBoxSize, double desiredFilterSize, double ss);
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static uint SolveMaxBoxSize(uint localMem);
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private:
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//Kernel creators.
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string CreateLogScaleAssignDEKernelString();
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string CreateGaussianDEKernel(size_t ss);
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string CreateGaussianDEKernelNoLocalCache(size_t ss);
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string m_LogScaleAssignDEKernel;
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string m_LogScaleAssignDEEntryPoint;
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string m_GaussianDEWithoutSsKernel;
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string m_GaussianDEWithoutSsEntryPoint;
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string m_GaussianDESsWithScfKernel;
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string m_GaussianDESsWithScfEntryPoint;
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string m_GaussianDESsWithoutScfKernel;
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string m_GaussianDESsWithoutScfEntryPoint;
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string m_GaussianDEWithoutSsNoCacheKernel;
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string m_GaussianDEWithoutSsNoCacheEntryPoint;
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string m_GaussianDESsWithScfNoCacheKernel;
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string m_GaussianDESsWithScfNoCacheEntryPoint;
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string m_GaussianDESsWithoutScfNoCacheKernel;
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string m_GaussianDESsWithoutScfNoCacheEntryPoint;
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bool m_DoublePrecision;
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bool m_NVidia;
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};
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}
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