[SurfaceFlingerStats] Add initial statsd atoms

    }

    // Pulled events will start at field 10000.

    // Next: 10062

    // Next: 10064

    oneof pulled {

        WifiBytesTransfer wifi_bytes_transfer = 10000;

        WifiBytesTransferByFgBg wifi_bytes_transfer_by_fg_bg = 10001;

        CoolingDevice cooling_device = 10059;

        AppOps app_ops = 10060;

        ProcessSystemIonHeapSize process_system_ion_heap_size = 10061;

        SurfaceflingerStatsGlobalInfo surfaceflinger_stats_global_info = 10062;

        SurfaceflingerStatsLayerInfo surfaceflinger_stats_layer_info = 10063;

    }

    // DO NOT USE field numbers above 100,000 in AOSP.

    // The number of reboot of the device during a successful update.

    optional int32 reboot_count = 7;

}

/**

 * Global display pipeline metrics reported by SurfaceFlinger.

 * Pulled from:

 *    frameworks/native/services/surfaceflinger/TimeStats/TimeStats.cpp

 */

message SurfaceflingerStatsGlobalInfo {

    // Total number of frames presented during the tracing period

    optional int64 total_frames = 1;

    // Total number of frames missed

    optional int64 missed_frames = 2;

    // Total number of frames that fell back to client composition

    optional int64 client_composition_frames = 3;

    // Total time the display was turned on

    optional int64 display_on_millis = 4;

    // Total time that was spent performing animations.

    // This is derived from the present-to-present layer histogram

    optional int64 animation_millis = 5;

}

/**

 * Per-layer display pipeline metrics reported by SurfaceFlinger.

 * The number of layers uploaded will be restricted due to size limitations.

 * Pulled from:

 *    frameworks/native/services/surfaceflinger/TimeStats/TimeStats.cpp

 */

message SurfaceflingerStatsLayerInfo {

    // The layer for this set of metrics

    // For now we can infer that the package name is included in the layer

    // name.

    optional string layer_name = 1;

    // Total number of frames presented

    optional int64 total_frames = 2;

    // Total number of dropped frames while latching a buffer for this layer.

    optional int64 dropped_frames = 3;

    // Set of timings measured between successive presentation timestamps.

    optional FrameTimingHistogram present_to_present = 4

        [(android.os.statsd.log_mode) = MODE_BYTES];

    // Set of timings measured from when an app queued a buffer for

    // presentation, until the buffer was actually presented to the

    // display.

    optional FrameTimingHistogram post_to_present = 5

        [(android.os.statsd.log_mode) = MODE_BYTES];

    // Set of timings measured from when a buffer is ready to be presented,

    // until the buffer was actually presented to the display.

    optional FrameTimingHistogram acquire_to_present = 6

        [(android.os.statsd.log_mode) = MODE_BYTES];

    // Set of timings measured from when a buffer was latched by

    // SurfaceFlinger, until the buffer was presented to the display

    optional FrameTimingHistogram latch_to_present = 7

        [(android.os.statsd.log_mode) = MODE_BYTES];

    // Set of timings measured from the desired presentation to the actual

    // presentation time

    optional FrameTimingHistogram desired_to_present = 8

        [(android.os.statsd.log_mode) = MODE_BYTES];

    // Set of timings measured from when an app queued a buffer for

    // presentation, until the buffer was ready to be presented.

    optional FrameTimingHistogram post_to_acquire = 9

        [(android.os.statsd.log_mode) = MODE_BYTES];

}

/**

 * Histogram of frame counts bucketed by time in milliseconds.

 * Because of size limitations, we hard-cap the number of buckets, with

 * buckets for corresponding to larger milliseconds being less precise.

 */

message FrameTimingHistogram {

    // Timings in milliseconds that describes a set of histogram buckets

    repeated int32 time_millis_buckets = 1;

    // Number of frames that match to each time_millis, i.e. the bucket

    // contents

    // It's required that len(time_millis) == len(frame_count)

    repeated int64 frame_counts = 2;

}