mirror of https://github.com/PCSX2/pcsx2.git
83 lines
2.4 KiB
C++
83 lines
2.4 KiB
C++
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/* ZZ Open GL graphics plugin
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* Copyright (c)2009-2012 zeydlitz@gmail.com, arcum42@gmail.com, gregory.hainaut@gmail.com
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* Based on Zerofrog's ZeroGS KOSMOS (c)2005-2008
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "Profile_gl3.h"
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GPU_Profile GPU_Timer;
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void GPU_Profile::dump(bool flush)
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{
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u32 high_limit;
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if (flush) high_limit = 1;
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else high_limit = 1000;
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while (datas.size() > high_limit) {
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ProfileInfo data_start = datas.front();
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datas.pop_front();
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ProfileInfo data_stop = datas.front();
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datas.pop_front();
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u32 gpu_time = read_diff_timers(data_start.timer, data_stop.timer);
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#ifdef ENABLE_MARKER
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if (GLEW_GREMEDY_string_marker) glStringMarkerGREMEDY(0, format("Time %6dus", gpu_time).c_str());
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#else
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fprintf(stderr, "Frame %d (%d): %6dus\n", data_start.frame, data_start.draw, gpu_time);
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#endif
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}
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}
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void GPU_Profile::create_timer()
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{
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u32 timer = 0;
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#ifdef GLSL4_API
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glGenQueries(1, &timer);
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glQueryCounter(timer, GL_TIMESTAMP);
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#endif
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datas.push_back(ProfileInfo(timer, frame, draw));
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#ifdef ENABLE_MARKER
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dump(true);
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#endif
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}
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u32 GPU_Profile::read_diff_timers(u32 start_timer, u32 stop_timer)
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{
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#ifdef GLSL4_API
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if(!start_timer || !stop_timer) return -1;
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int stopTimerAvailable = 0;
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while (!stopTimerAvailable)
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glGetQueryObjectiv(stop_timer, GL_QUERY_RESULT_AVAILABLE, &stopTimerAvailable);
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u64 start, stop = 0;
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// Note: timers have a precision of the ns, so you need 64 bits value to avoid overflow!
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glGetQueryObjectui64v(start_timer, GL_QUERY_RESULT, &start);
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glGetQueryObjectui64v(stop_timer, GL_QUERY_RESULT, &stop);
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// delete timer
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glDeleteQueries(1, &start_timer);
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glDeleteQueries(1, &stop_timer);
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return (stop-start)/1000;
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#else
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return 0;
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#endif
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}
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