63 lines
1.2 KiB
C++
63 lines
1.2 KiB
C++
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/*
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* mptRandom.cpp
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* -------------
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* Purpose: PRNG
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* Notes : (currently none)
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* Authors: OpenMPT Devs
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* The OpenMPT source code is released under the BSD license. Read LICENSE for more details.
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*/
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#include "stdafx.h"
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#include "mptRandom.h"
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OPENMPT_NAMESPACE_BEGIN
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namespace mpt
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{
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#if defined(MODPLUG_TRACKER) && !defined(MPT_BUILD_WINESUPPORT)
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static mpt::random_device *g_rd = nullptr;
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static mpt::thread_safe_prng<mpt::default_prng> *g_global_prng = nullptr;
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void set_global_random_device(mpt::random_device *rd)
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{
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g_rd = rd;
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}
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void set_global_prng(mpt::thread_safe_prng<mpt::default_prng> *prng)
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{
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g_global_prng = prng;
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}
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mpt::random_device & global_random_device()
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{
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return *g_rd;
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}
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mpt::thread_safe_prng<mpt::default_prng> & global_prng()
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{
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return *g_global_prng;
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}
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#else
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mpt::random_device & global_random_device()
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{
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static mpt::random_device g_rd;
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return g_rd;
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}
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mpt::thread_safe_prng<mpt::default_prng> & global_prng()
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{
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static mpt::thread_safe_prng<mpt::default_prng> g_global_prng(mpt::make_prng<mpt::default_prng>(global_random_device()));
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return g_global_prng;
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}
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#endif // MODPLUG_TRACKER && !MPT_BUILD_WINESUPPORT
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} // namespace mpt
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OPENMPT_NAMESPACE_END
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