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Moved parallel_for() function template to own header file

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alexey.lysiuk 2017-07-15 12:16:06 +03:00
parent ac30e47ab4
commit 490e873602
2 changed files with 80 additions and 38 deletions
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39
src/gl/textures/gl_hqresize.cpp
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@ -46,44 +46,7 @@
#include "gl/xbr/xbrz.h"
#include "gl/xbr/xbrz_old.h"
#ifdef HAVE_PARALLEL_FOR
#include <ppl.h>
template <typename Index, typename Function>
inline void parallel_for(const Index count, const Index step, const Function& function)
{
concurrency::parallel_for(0, count, step, function);
}
#elif defined HAVE_DISPATCH_APPLY
#include <dispatch/dispatch.h>
template <typename Index, typename Function>
inline void parallel_for(const Index count, const Index step, const Function& function)
{
const dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
dispatch_apply(count / step + 1, queue, ^(size_t sliceY)
{
function(sliceY * step);
});
}
#else
template <typename Index, typename Function>
inline void parallel_for(const Index count, const Index step, const Function& function)
{
#pragma omp parallel for
for (Index i = 0; i < count; i += step)
{
function(i);
}
}
#endif // HAVE_PARALLEL_FOR
#include "parallel_for.h"
CUSTOM_CVAR(Int, gl_texture_hqresize, 0, CVAR_ARCHIVE | CVAR_GLOBALCONFIG | CVAR_NOINITCALL)
{

79
src/parallel_for.h Normal file
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@ -0,0 +1,79 @@
//
//---------------------------------------------------------------------------
//
// Copyright(C) 2017 Alexey Lysiuk
// All rights reserved.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with this program. If not, see http://www.gnu.org/licenses/
//
//--------------------------------------------------------------------------
//
#pragma once
#ifndef PARALLEL_FOR_H_INCLUDED
#define PARALLEL_FOR_H_INCLUDED
#ifdef HAVE_PARALLEL_FOR
#include <ppl.h>
template <typename Index, typename Function>
inline void parallel_for(const Index first, const Index last, const Index step, const Function& function)
{
concurrency::parallel_for(first, last, step, function);
}
#elif defined HAVE_DISPATCH_APPLY
#include <dispatch/dispatch.h>
template <typename Index, typename Function>
inline void parallel_for(const Index first, const Index last, const Index step, const Function& function)
{
const dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
dispatch_apply((last - first) / step + 1, queue, ^(size_t slice)
{
function(slice * step);
});
}
#else // Generic loop with optional OpenMP parallelization
template <typename Index, typename Function>
inline void parallel_for(const Index first, const Index last, const Index step, const Function& function)
{
#pragma omp parallel for
for (Index i = first; i < last; i += step)
{
function(i);
}
}
#endif // HAVE_PARALLEL_FOR
template <typename Index, typename Function>
inline void parallel_for(const Index count, const Function& function)
{
parallel_for(0, count, 1, function);
}
template <typename Index, typename Function>
inline void parallel_for(const Index count, const Index step, const Function& function)
{
parallel_for(0, count, step, function);
}
#endif // PARALLEL_FOR_H_INCLUDED