74 lines
2.2 KiB
C++
74 lines
2.2 KiB
C++
/*
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* Created by Brett Terpstra 6920201 on 20/11/22.
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* Copyright (c) 2022 Brett Terpstra. All Rights Reserved.
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*/
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#ifndef STEP_3_CL_H
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#define STEP_3_CL_H
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// OpenCL includes
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#include <CL/cl.h>
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#include <engine/util/std.h>
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namespace Raytracing {
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class CLProgram {
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private:
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cl_int m_CL_ERR{};
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std::string m_source;
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cl_device_id m_deviceID{};
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cl_context m_context{};
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cl_command_queue m_commandQueue{};
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cl_program m_program{};
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std::unordered_map<std::string, cl_mem> buffers;
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std::unordered_map<std::string, cl_kernel> kernels;
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public:
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explicit CLProgram(const std::string& file);
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void loadCLShader(cl_context context, cl_device_id deviceID);
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void createKernel(const std::string& kernelName);
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void createBuffer(const std::string& bufferName, cl_mem_flags flags, size_t bytes);
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void createBuffer(const std::string& bufferName, cl_mem_flags flags, size_t bytes, void* ptr);
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void setKernelArgument(const std::string& kernel, const std::string& buffer, int argIndex);
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void writeBuffer(const std::string& buffer, size_t bytes, void* ptr, cl_bool blocking = CL_TRUE, size_t offset = 0);
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void readBuffer(const std::string& buffer, size_t bytes, void* ptr, cl_bool blocking = CL_TRUE, size_t offset = 0);
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void flushCommands();
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void finishCommands();
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~CLProgram();
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};
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class OpenCL {
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private:
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cl_int m_CL_ERR;
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cl_uint m_numPlatforms;
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int m_activePlatform;
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cl_platform_id* m_platformIDs;
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cl_uint m_numOfPlatformIDs;
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cl_device_id m_deviceID;
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cl_uint m_numOfDevices;
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cl_context m_context;
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static void printDeviceInfo(cl_device_id device);
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public:
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explicit OpenCL(int platformID = 0, int deviceID = 0);
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static void init();
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static void createCLProgram(CLProgram& program);
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~OpenCL();
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};
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}
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#endif //STEP_3_CL_H
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