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60 lines
1.2 KiB
C
60 lines
1.2 KiB
C
#ifndef SC_FPSCOUNTER_H
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#define SC_FPSCOUNTER_H
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#include "common.h"
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#include <stdatomic.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include "util/thread.h"
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struct sc_fps_counter {
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sc_thread thread;
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sc_mutex mutex;
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sc_cond state_cond;
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bool thread_started;
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// atomic so that we can check without locking the mutex
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// if the FPS counter is disabled, we don't want to lock unnecessarily
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atomic_bool started;
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// the following fields are protected by the mutex
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bool interrupted;
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unsigned nr_rendered;
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unsigned nr_skipped;
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sc_tick next_timestamp;
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};
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bool
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sc_fps_counter_init(struct sc_fps_counter *counter);
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void
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sc_fps_counter_destroy(struct sc_fps_counter *counter);
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bool
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sc_fps_counter_start(struct sc_fps_counter *counter);
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void
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sc_fps_counter_stop(struct sc_fps_counter *counter);
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bool
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sc_fps_counter_is_started(struct sc_fps_counter *counter);
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// request to stop the thread (on quit)
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// must be called before sc_fps_counter_join()
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void
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sc_fps_counter_interrupt(struct sc_fps_counter *counter);
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void
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sc_fps_counter_join(struct sc_fps_counter *counter);
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void
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sc_fps_counter_add_rendered_frame(struct sc_fps_counter *counter);
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void
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sc_fps_counter_add_skipped_frame(struct sc_fps_counter *counter);
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#endif
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