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Add possibility to limit frame to main loop (application/target_fps)

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target-fps working, and use fixed physics step before adding physics-fps in project setting

Complete implementation of framelimit

Conflicts:
	main/main.cpp
This commit is contained in:
marynate
2014-02-19 23:35:39 +08:00
parent e20e3c9525
commit c0547f5691
6 changed files with 41 additions and 4 deletions
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15
main/main.cpp
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@@ -648,7 +648,8 @@ Error Main::setup(const char *execpath,int argc, char *argv[],bool p_second_phas
OS::get_singleton()->set_screen_orientation(OS::SCREEN_LANDSCAPE);
}
OS::get_singleton()->set_iterations_per_second(GLOBAL_DEF("display/target_fps",60));
OS::get_singleton()->set_iterations_per_second(GLOBAL_DEF("physics/fixed_fps",60));
OS::get_singleton()->set_target_fps(GLOBAL_DEF("application/target_fps",0));
if (!OS::get_singleton()->_verbose_stdout) //overrided
OS::get_singleton()->_verbose_stdout=GLOBAL_DEF("debug/verbose_stdout",false);
@@ -1210,6 +1211,7 @@ bool Main::start() {
}
uint64_t Main::last_ticks=0;
uint64_t Main::target_ticks=0;
float Main::time_accum=0;
uint32_t Main::frames=0;
uint32_t Main::frame=0;
@@ -1295,7 +1297,6 @@ bool Main::iteration() {
}
} else {
VisualServer::get_singleton()->flush(); // flush visual commands
}
if (AudioServer::get_singleton())
@@ -1343,6 +1344,16 @@ bool Main::iteration() {
OS::get_singleton()->delay_usec( OS::get_singleton()->get_frame_delay()*1000 );
}
int taret_fps = OS::get_singleton()->get_target_fps();
if (taret_fps>0) {
uint64_t time_step = 1000000L/taret_fps;
target_ticks += time_step;
uint64_t current_ticks = OS::get_singleton()->get_ticks_usec();
if (current_ticks<target_ticks) OS::get_singleton()->delay_usec(target_ticks-current_ticks);
current_ticks = OS::get_singleton()->get_ticks_usec();
target_ticks = MIN(MAX(target_ticks,current_ticks-time_step),current_ticks+time_step);
}
return exit;
}