/*
 * Copyright 2018 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

syntax = "proto2";

package android.surfaceflinger;

option optimize_for = LITE_RUNTIME;

// //depot/google3/wireless/android/graphics/surfaceflingerstats/proto/
// timestats.proto is based on this proto. Please only make valid protobuf
// changes to these messages, and keep google3 side proto messages in sync if
// the end to end pipeline needs to be updated.

// Next tag: 12
message SFTimeStatsGlobalProto {
  // The stats start time in UTC as seconds since January 1, 1970
  optional int64 stats_start = 1;
  // The stats end time in UTC as seconds since January 1, 1970
  optional int64 stats_end = 2;
  // Total number of frames presented during tracing period.
  optional int32 total_frames = 3;
  // Total missed frames of SurfaceFlinger.
  optional int32 missed_frames = 4;
  // Total frames fallback to client composition.
  optional int32 client_composition_frames = 5;
  // Primary display on time in milliseconds.
  optional int64 display_on_time = 7;
  // Stats per display configuration.
  repeated SFTimeStatsDisplayConfigBucketProto display_config_stats = 9;
  // Present to present histogram.
  repeated SFTimeStatsHistogramBucketProto present_to_present = 8;
  // Frame CPU duration histogram.
  repeated SFTimeStatsHistogramBucketProto frame_duration = 10;
  // Frame GPU duration histogram.
  repeated SFTimeStatsHistogramBucketProto render_engine_timing = 11;
  // Stats per layer. Apps could have multiple layers.
  repeated SFTimeStatsLayerProto stats = 6;
}

// Next tag: 8
message SFTimeStatsLayerProto {
  // The name of the visible view layer.
  optional string layer_name = 1;
  // The package name of the application owning this layer.
  optional string package_name = 2;
  // The stats start time in UTC as seconds since January 1, 1970
  optional int64 stats_start = 3;
  // The stats end time in UTC as seconds since January 1, 1970
  optional int64 stats_end = 4;
  // Total number of frames presented during tracing period.
  optional int32 total_frames = 5;
  // Total number of frames dropped by SurfaceFlinger.
  optional int32 dropped_frames = 7;
  // There are multiple timestamps tracked in SurfaceFlinger, and these are the
  // histograms of deltas between different combinations of those timestamps.
  repeated SFTimeStatsDeltaProto deltas = 6;
}

// Next tag: 3
message SFTimeStatsDeltaProto {
  // Name of the time interval
  optional string delta_name = 1;
  // Histogram of the delta time. There should be at most 85 buckets ranging
  // from [0ms, 1ms) to [1000ms, infinity)
  repeated SFTimeStatsHistogramBucketProto histograms = 2;
}

// Next tag: 3
message SFTimeStatsHistogramBucketProto {
  // Lower bound of time interval in milliseconds.
  optional int32 time_millis = 1;
  // Number of frames in the bucket.
  optional int32 frame_count = 2;
}

// Next tag: 3
message SFTimeStatsDisplayConfigBucketProto {
    // Metadata desribing a display config.
    optional SFTimeStatsDisplayConfigProto config = 1;
    // Duration in milliseconds for how long the display was in this
    // configuration.
    optional int64 duration_millis = 2;
}

// Next tag: 2
message SFTimeStatsDisplayConfigProto {
    // Frames per second, rounded to the nearest integer.
    optional int32 fps = 1;
}