72 lines
2.0 KiB
C++
72 lines
2.0 KiB
C++
/*
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* Copyright (c) 2015, PHILIPPE TILLET. All rights reserved.
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*
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* This file is part of ISAAC.
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*
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* ISAAC is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301 USA
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*/
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#include <iostream>
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#include "isaac/driver/buffer.h"
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#include "isaac/driver/backend.h"
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#include "helpers/ocl/infos.hpp"
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namespace isaac
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{
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namespace driver
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{
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Buffer::Buffer(CUdeviceptr h, bool take_ownership) : backend_(CUDA), context_(backend::contexts::import(Buffer::context(h))), h_(backend_, take_ownership)
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{
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h_.cu() = h;
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}
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Buffer::Buffer(cl_mem buffer, bool take_ownership) : backend_(OPENCL), context_(backend::contexts::import(ocl::info<CL_MEM_CONTEXT>(buffer))), h_(backend_, take_ownership)
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{
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h_.cl() = buffer;
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}
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Buffer::Buffer(Context const & context, size_t size) : backend_(context.backend_), context_(context), h_(backend_, true)
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{
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switch(backend_)
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{
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case CUDA:
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check(dispatch::cuMemAlloc(&h_.cu(), size));
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break;
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case OPENCL:
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cl_int err;
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h_.cl() = dispatch::clCreateBuffer(context.h_.cl(), CL_MEM_READ_WRITE, size, NULL, &err);
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check(err);
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break;
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default:
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throw;
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}
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}
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Context const & Buffer::context() const
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{ return context_; }
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HANDLE_TYPE(cl_mem, CUdeviceptr) & Buffer::handle()
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{ return h_; }
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HANDLE_TYPE(cl_mem, CUdeviceptr) const & Buffer::handle() const
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{ return h_; }
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}
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}
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