86 lines
2.8 KiB
C++
86 lines
2.8 KiB
C++
//=====================================================================
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// Copyright (c) 2021 Advanced Micro Devices, Inc. All rights reserved.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files(the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and / or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions :
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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//
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/// \file query_timer.cpp
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//
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//=====================================================================
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#include "query_timer.h"
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cmp_timeval query_timer::m_frequency;
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int query_timer::m_elapsed_count;
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void cmp_cputimer::initialize() {
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#ifdef _WIN32
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for (int i=0; i<CMP_TIMER_REFMAX; i++) m_start[i].QuadPart = 0;
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QueryPerformanceFrequency(&m_cpufrequency);
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m_fcpufrequency = 1.0f/float(m_cpufrequency.QuadPart);
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#endif
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}
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void cmp_cputimer::Start(CMP_INT ref) {
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if (ref > CMP_TIMER_REFMAX) ref = 0;
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#ifdef _WIN32
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m_end[ref].QuadPart = 0;
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QueryPerformanceCounter(&m_start[ref]);
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#else
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gettimeofday(&m_start[ref], NULL);
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#endif
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}
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void cmp_cputimer::Stop(CMP_INT ref) {
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if (ref > CMP_TIMER_REFMAX) ref = 0;
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#ifdef _WIN32
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if (m_start[ref].QuadPart == 0) m_end[ref].QuadPart = 0;
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else {
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QueryPerformanceCounter(&m_end[ref]);
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}
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#else
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gettimeofday(&m_end[ref], NULL);
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#endif
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}
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void cmp_cputimer::Reset(int ref) {
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#ifdef _WIN32
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m_start[ref].QuadPart = 0;
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m_end[ref].QuadPart = 0;
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#endif
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}
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CMP_FLOAT cmp_cputimer::GetMS(CMP_INT ref) {
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if (ref > CMP_TIMER_REFMAX) ref = 0;
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#ifdef _WIN32
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if (ref > CMP_TIMER_REFMAX) ref = 0;
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if (m_start[ref].QuadPart <= 0) return 0;
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float diff;
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float tickResolution = 1.0f/(float)m_cpufrequency.QuadPart;
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LARGE_INTEGER ElapsedMicroseconds;
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ElapsedMicroseconds.QuadPart = (m_end[ref].QuadPart - m_start[ref].QuadPart);
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diff = (float)ElapsedMicroseconds.QuadPart * tickResolution;
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return diff*1000.0f;
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#else
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return ((m_end[ref].tv_sec - m_start[ref].tv_sec) * 1000 + (m_end[ref].tv_usec - m_start[ref].tv_usec) / 1000);
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#endif
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}
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