/*
 * Copyright (C) 2023 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 perfetto.protos;

import "protos/perfetto/trace/android/surfaceflinger_common.proto";
import "protos/perfetto/trace/android/graphics/rect.proto";

// Message used by Winscope to process legacy trace files.
// Represents a file full of surface flinger trace entries.
// Encoded, it should start with 0x4c 0x59 0x52 0x54 0x52 0x41 0x43 0x45
// (.LYRTRACE), such that they can be easily identified.
message LayersTraceFileProto {
  // constant; MAGIC_NUMBER = (long) MAGIC_NUMBER_H << 32 |
  // MagicNumber.MAGIC_NUMBER_L (this is needed because enums have to be 32 bits
  // and there's no nice way to put 64bit constants into .proto files.
  enum MagicNumber {
    INVALID = 0;
    // LYRT (little-endian ASCII)
    MAGIC_NUMBER_L = 0x5452594c;
    // RACE (little-endian ASCII)
    MAGIC_NUMBER_H = 0x45434152;
  }

  // Must be the first field, set to value in MagicNumber
  optional fixed64 magic_number = 1;

  repeated LayersSnapshotProto entry = 2;

  // Offset between real-time clock and elapsed time clock in nanoseconds.
  // Calculated as: systemTime(SYSTEM_TIME_REALTIME) -
  // systemTime(SYSTEM_TIME_MONOTONIC)
  optional fixed64 real_to_elapsed_time_offset_nanos = 3;
}

message LayersSnapshotProto {
  // elapsed realtime in nanos since boot of when this entry was logged
  optional sfixed64 elapsed_realtime_nanos = 1;

  // SurfaceFlinger's stage where the snapshot was triggered.
  // Currently either "visibleRegionsDirty" or "bufferLatched".
  optional string where = 2;

  optional LayersProto layers = 3;

  // Blob for the current HWC information for all layers, reported by dumpsys.
  // Example:
  //   "maxDownScale: 4, maxFullWidth: 8192, HWState: 1, AssignedState: 3, ..."
  optional string hwc_blob = 4;

  // Excludes state sent during composition like visible region and composition
  // type.
  optional bool excludes_composition_state = 5;

  // Number of missed entries since the last entry was recorded.
  optional uint32 missed_entries = 6;

  repeated DisplayProto displays = 7;

  optional int64 vsync_id = 8;
}

// Contains a list of all layers.
message LayersProto {
  repeated LayerProto layers = 1;
}

message DisplayProto {
  optional uint64 id = 1;
  // Display descriptor, e.g. "Built-In Screen"
  optional string name = 2;
  optional uint32 layer_stack = 3;
  optional SizeProto size = 4;
  optional RectProto layer_stack_space_rect = 5;
  optional TransformProto transform = 6;
  optional bool is_virtual = 7;
  optional double dpi_x = 8;
  optional double dpi_y = 9;
}

// Must match definition in the IComposerClient HAL
enum HwcCompositionType {
  // Invalid composition type
  HWC_TYPE_UNSPECIFIED = 0;
  // Layer was composited by the client into the client target buffer
  HWC_TYPE_CLIENT = 1;
  // Layer was composited by the device through hardware overlays
  HWC_TYPE_DEVICE = 2;
  // Layer was composited by the device using a color
  HWC_TYPE_SOLID_COLOR = 3;
  // Similar to DEVICE, but the layer position may have been asynchronously set
  // through setCursorPosition
  HWC_TYPE_CURSOR = 4;
  // Layer was composited by the device via a sideband stream
  HWC_TYPE_SIDEBAND = 5;
   // Layer was composited by hardware optimized for display decoration
  HWC_TYPE_DISPLAY_DECORATION = 6;
}

// Information about each layer.
message LayerProto {
  // unique id per layer.
  optional int32 id = 1;
  // unique name per layer.
  // Example: "Wallpaper".
  optional string name = 2;
  // list of children this layer may have. May be empty.
  repeated int32 children = 3 [packed = true];
  // list of layers that are z order relative to this layer.
  repeated int32 relatives = 4 [packed = true];
  // The type of layer.
  // Examples: "ContainerLayer", "BufferStateLayer".
  optional string type = 5;
  optional RegionProto transparent_region = 6;
  optional RegionProto visible_region = 7;
  optional RegionProto damage_region = 8;
  optional uint32 layer_stack = 9;
  // The layer's z order. Can be z order in layer stack, relative to parent,
  // or relative to another layer specified in zOrderRelative.
  optional int32 z = 10;
  // The layer's position on the display.
  optional PositionProto position = 11;
  // The layer's requested position.
  optional PositionProto requested_position = 12;
  // The layer's size.
  optional SizeProto size = 13;
  // The layer's crop in its own bounds.
  optional RectProto crop = 14;
  // The layer's crop in its parent's bounds.
  optional RectProto final_crop = 15 [deprecated = true];
  optional bool is_opaque = 16;
  optional bool invalidate = 17;
  // Composition states's dataspace.
  // Examples: "STANDARD_BT709", "STANDARD_BT601_625".
  // See full enum in
  // frameworks/native/libs/nativewindow/include/android/data_space.h
  optional string dataspace = 18;
  // Buffer's pixel format
  // Examples: "PIXEL_FORMAT_TRANSLUCENT", "PIXEL_FORMAT_RGBA_8888".
  // See full enum in frameworks/native/libs/ui/include/ui/PixelFormat.h
  optional string pixel_format = 19;
  // The layer's actual color.
  optional ColorProto color = 20;
  // The layer's requested color.
  optional ColorProto requested_color = 21;
  // Can be any combination of
  //    hidden = 0x01
  //    opaque = 0x02,
  //    secure = 0x80,
  optional uint32 flags = 22;
  // The layer's actual transform
  optional TransformProto transform = 23;
  // The layer's requested transform.
  optional TransformProto requested_transform = 24;
  // The parent layer. This value can be null if there is no parent.
  optional int32 parent = 25;
  // The layer that this layer has a z order relative to. This value can be
  // null.
  optional int32 z_order_relative_of = 26;
  // This value can be null if there's nothing to draw.
  optional ActiveBufferProto active_buffer = 27;
  // The number of frames available.
  optional int32 queued_frames = 28;
  optional bool refresh_pending = 29;
  // The layer's composer backend destination frame
  optional RectProto hwc_frame = 30;
  // The layer's composer backend source crop
  optional FloatRectProto hwc_crop = 31;
  // The layer's composer backend transform
  optional int32 hwc_transform = 32;
  optional int32 window_type = 33 [deprecated = true];
  optional int32 app_id = 34 [deprecated = true];
  // The layer's composition type
  optional HwcCompositionType hwc_composition_type = 35;
  // If it's a buffer layer, indicate if the content is protected
  optional bool is_protected = 36;
  // Current frame number being rendered.
  optional uint64 curr_frame = 37;
  // A list of barriers that the layer is waiting to update state.
  repeated BarrierLayerProto barrier_layer = 38;
  // If active_buffer is not null, record its transform.
  optional TransformProto buffer_transform = 39;
  optional int32 effective_scaling_mode = 40;
  // Layer's corner radius.
  optional float corner_radius = 41;
  // Metadata map. May be empty.
  map<int32, string> metadata = 42;

  optional TransformProto effective_transform = 43;
  optional FloatRectProto source_bounds = 44;
  optional FloatRectProto bounds = 45;
  optional FloatRectProto screen_bounds = 46;

  optional InputWindowInfoProto input_window_info = 47;

  // Crop used to draw the rounded corner.
  optional FloatRectProto corner_radius_crop = 48;

  // length of the shadow to draw around the layer, it may be set on the
  // layer or set by a parent layer.
  optional float shadow_radius = 49;
  optional ColorTransformProto color_transform = 50;

  optional bool is_relative_of = 51;
  // Layer's background blur radius in pixels.
  optional int32 background_blur_radius = 52;

  optional uint32 owner_uid = 53;

  // Regions of a layer, where blur should be applied.
  repeated BlurRegion blur_regions = 54;

  optional bool is_trusted_overlay = 55;

  // Corner radius explicitly set on layer rather than inherited
  optional float requested_corner_radius = 56;

  optional RectProto destination_frame = 57;

  optional uint32 original_id = 58;

  optional TrustedOverlay trusted_overlay = 59;
}

message PositionProto {
  optional float x = 1;
  optional float y = 2;
}

message FloatRectProto {
  optional float left = 1;
  optional float top = 2;
  optional float right = 3;
  optional float bottom = 4;
}

message ActiveBufferProto {
  optional uint32 width = 1;
  optional uint32 height = 2;
  optional uint32 stride = 3;
  optional int32 format = 4;
  optional uint64 usage = 5;
}

message BarrierLayerProto {
  // layer id the barrier is waiting on.
  optional int32 id = 1;
  // frame number the barrier is waiting on.
  optional uint64 frame_number = 2;
}