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# Copyright 2019 DragonRuby LLC
# MIT License
# framerate.rb has been released under MIT (*only this file*).
module GTK
class Runtime
module Framerate
def framerate_init
@tick_time = Time.new.to_i
end
def delta_framerate
(current_framerate || 0) - (@previous_framerate || 0)
end
def reset_framerate_calculation
@tick_speed_sum = 0
@tick_speed_count = 0
@previous_framerate = 0
end
def check_framerate
if @framerate_diagnostics_requested
log "================================"
log framerate_get_diagnostics
@framerate_diagnostics_requested = false
end
if !@paused
if @tick_time
@tick_speed_count += 1
@tick_speed_sum += Time.now.to_i - @tick_time
if @tick_speed_count > 60 * 2
if framerate_below_threshold?
@last_framerate = current_framerate
if [email protected]?
if !@framerate_important_notification_happened
log_important framerate_warning_message
else
log framerate_warning_message
end
@framerate_important_notification_happened = true
end
end
@previous_framerate = current_framerate.floor
end
end
@tick_time = Time.new.to_i
else
reset_framerate_calculation
end
rescue
reset_framerate_calculation
end
def framerate_diagnostics
# request framerate diagnostics to be printed at the end of tick
@framerate_diagnostics_requested = true
end
def framerate_below_threshold?
@last_framerate ||= 60
current_framerate < @last_framerate &&
current_framerate < 50 &&
@previous_framerate > current_framerate &&
Kernel.tick_count > 600
end
def current_framerate
return 60 if !@tick_speed_sum || !@tick_speed_sum
r = 100.fdiv(@tick_speed_sum.fdiv(@tick_speed_count) * 100)
if (r.nan? || r.infinite? || r > 58)
r = 60
end
r || 60
rescue
60
end
end # module Framerate
end # end class Runtime
end # end module GTK
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