mirror of
https://bitbucket.org/mfeemster/fractorium.git
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55a2c393cf
-Add new palettes from user Rubydeva. --Bug fixes -Avoid an occasional divide by zero in the OpenCL renderer when using the interactive editor. --Code changes -Use exact comparisons in IsID() and IsZero() in Affine2D. -When testing for bad point values while iterating, only test for NaN now. -For rendering with OpenCL on the command line and in the final render dialog, use an optimized kernel that does a direct assignment for any affines which are ID.
83 lines
2.9 KiB
C++
83 lines
2.9 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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#include "FunctionMapper.h"
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/// <summary>
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/// IterOpenCLKernelCreator class.
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/// </summary>
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namespace EmberCLns
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{
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/// <summary>
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/// Class for creating the main iteration code in OpenCL.
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/// It uses the Cuburn method of iterating where all conditionals
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/// are stripped out and a specific kernel is compiled at run-time.
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/// It uses a very sophisticated method for randomization that avoids
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/// the problem of warp/wavefront divergence that would occur if every
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/// thread selected a random xform to apply.
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/// This only works with embers of type float, double is not supported.
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/// </summary>
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template <typename T>
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class EMBERCL_API IterOpenCLKernelCreator
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{
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public:
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IterOpenCLKernelCreator();
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const string& ZeroizeKernel() const;
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const string& ZeroizeEntryPoint() const;
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const string& SumHistKernel() const;
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const string& SumHistEntryPoint() const;
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const string& IterEntryPoint() const;
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string CreateIterKernelString(const Ember<T>& ember, const string& parVarDefines, const string& globalSharedDefines, bool optAffine, bool lockAccum = false, bool doAccum = true);
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string GlobalFunctionsString(const Ember<T>& ember);
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static void ParVarIndexDefines(const Ember<T>& ember, pair<string, vector<T>>& params, bool doVals = true, bool doString = true);
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static void SharedDataIndexDefines(const Ember<T>& ember, pair<string, vector<T>>& params, bool doVals = true, bool doString = true);
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static string VariationStateString(const Ember<T>& ember);
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static string VariationStateInitString(const Ember<T>& ember);
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static bool IsBuildRequired(const Ember<T>& ember1, const Ember<T>& ember2, bool optAffine);
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private:
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string CreateZeroizeKernelString() const;
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string CreateSumHistKernelString() const;
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string CreateProjectionString(const Ember<T>& ember) const;
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string m_IterEntryPoint = "IterateKernel";
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string m_ZeroizeKernel;
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string m_ZeroizeEntryPoint = "ZeroizeKernel";
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string m_SumHistKernel;
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string m_SumHistEntryPoint = "SumHisteKernel";
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FunctionMapper m_FunctionMapper;
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};
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#ifdef OPEN_CL_TEST_AREA
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typedef void (*KernelFuncPointer) (size_t gridWidth, size_t gridHeight, size_t blockWidth, size_t blockHeight,
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size_t BLOCK_ID_X, size_t BLOCK_ID_Y, size_t THREAD_ID_X, size_t THREAD_ID_Y);
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static void OpenCLSim(size_t gridWidth, size_t gridHeight, size_t blockWidth, size_t blockHeight, KernelFuncPointer func)
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{
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cout << "OpenCLSim(): ";
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cout << "\n Params: ";
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cout << "\n gridW: " << gridWidth;
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cout << "\n gridH: " << gridHeight;
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cout << "\n blockW: " << blockWidth;
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cout << "\n blockH: " << blockHeight;
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for (size_t i = 0; i < gridHeight; i += blockHeight)
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{
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for (size_t j = 0; j < gridWidth; j += blockWidth)
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{
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for (size_t k = 0; k < blockHeight; k++)
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{
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for (size_t l = 0; l < blockWidth; l++)
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{
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func(gridWidth, gridHeight, blockWidth, blockHeight, j / blockWidth, i / blockHeight, l, k);
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}
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}
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}
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}
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}
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#endif
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}
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