pcsx2/plugins/zzogl-pg/opengl/Profile_gl3.cpp

83 lines
2.4 KiB
C++

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