include/opencl/openclwrapper.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  */
   9
  10 #ifndef INCLUDED_SC_SOURCE_CORE_OPENCL_OPENCLWRAPPER_HXX
  11 #define INCLUDED_SC_SOURCE_CORE_OPENCL_OPENCLWRAPPER_HXX
  12
  13 #include <config_features.h>
  14
  15 #include <cassert>
  16 #include <vector>
  17
  18 #include <boost/shared_ptr.hpp>
  19 #include <clew/clew.h>
  20
  21 #include <sal/detail/log.h>
  22 #include <opencl/opencldllapi.h>
  23 #include <opencl/platforminfo.hxx>
  24 #include <osl/file.hxx>
  25 #include <rtl/string.hxx>
  26
  27 #define MAX_CLFILE_NUM 50
  28 #define OPENCL_CMDQUEUE_SIZE 1 // number of command queues per OpenCL device.
  29
  30 #include <cstdio>
  31
  32 namespace opencl {
  33
  34 struct KernelEnv
  35 {
  36     cl_context mpkContext;
  37     cl_command_queue mpkCmdQueue;
  38     cl_program mpkProgram;
  39 };
  40
  41 struct GPUEnv
  42 {
  43     //share vb in all modules in hb library
  44     cl_platform_id mpPlatformID;
  45     cl_device_type mDevType;
  46     cl_context mpContext;
  47     cl_device_id *mpArryDevsID;
  48     cl_device_id mpDevID;
  49     cl_command_queue mpCmdQueue[OPENCL_CMDQUEUE_SIZE];
  50     cl_program mpArryPrograms[MAX_CLFILE_NUM]; //one program object maps one kernel source file
  51     int mnIsUserCreated; // 1: created , 0:no create and needed to create by opencl wrapper
  52     int mnCmdQueuePos;
  53     bool mnKhrFp64Flag;
  54     bool mnAmdFp64Flag;
  55     cl_uint mnPreferredVectorWidthFloat;
  56 };
  57
  58 extern OPENCL_DLLPUBLIC GPUEnv gpuEnv;
  59 OPENCL_DLLPUBLIC bool generatBinFromKernelSource( cl_program program, const char * clFileName );
  60 OPENCL_DLLPUBLIC bool buildProgramFromBinary(const char* buildOption, GPUEnv* gpuEnv, const char* filename, int idx);
  61 OPENCL_DLLPUBLIC void setKernelEnv( KernelEnv *envInfo );
  62 OPENCL_DLLPUBLIC const std::vector<OpenCLPlatformInfo>& fillOpenCLInfo();
  63
  64 /**
  65  * Used to set or switch between OpenCL devices.
  66  *
  67  * @param pDeviceId the id of the opencl device of type cl_device_id, NULL means use software calculation
  68  * @param bAutoSelect use the algorithm to select the best OpenCL device
  69  *
  70  * @return returns true if there is a valid opencl device that has been set up
  71  */
  72 OPENCL_DLLPUBLIC bool switchOpenCLDevice(const OUString* pDeviceId, bool bAutoSelect,
  73                                          bool bForceEvaluation);
  74
  75 OPENCL_DLLPUBLIC void getOpenCLDeviceInfo(size_t& rDeviceId, size_t& rPlatformId);
  76
  77 /**
  78  * Set the current command queue position in case of multiple command queues
  79  * for a given device.
  80  */
  81 OPENCL_DLLPUBLIC void setOpenCLCmdQueuePosition( int nPos );
  82
  83 /**
  84  * Return a textual representation of an OpenCL error code.
  85  * (Currently the symbolic name sans the CL_ prefix.)
  86  */
  87 OPENCL_DLLPUBLIC const char* errorString(cl_int nError);
  88
  89 }
  90
  91 #endif
  92
  93 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */