display_item.proto

// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

syntax = "proto2";

import "skregion.proto";
import "skrrect.proto";
import "skxfermode.proto";
import "rect.proto";
import "rectf.proto";
import "transform.proto";

option optimize_for = LITE_RUNTIME;

package cc.proto;

message DisplayItemListSettings {
  optional bool use_cached_picture = 1;
}

message DisplayItemList {
  repeated DisplayItem items = 1;
  optional DisplayItemListSettings settings = 3;
  repeated cc.proto.Rect visual_rects = 4;
}

message DisplayItem {
  enum Type {
    Type_Clip = 1;
    Type_EndClip = 2;
    Type_ClipPath = 3;
    Type_EndClipPath = 4;
    Type_Compositing = 5;
    Type_EndCompositing = 6;
    Type_Drawing = 7;
    Type_Filter = 8;
    Type_EndFilter = 9;
    Type_FloatClip = 10;
    Type_EndFloatClip = 11;
    Type_Transform = 12;
    Type_EndTransform = 13;
  }

  optional Type type = 1;

  // Unique DisplayItem types.  |type| determines which one (if any) is valid.
  optional ClipDisplayItem clip_item = 1000;
  optional ClipPathDisplayItem clip_path_item = 1001;
  optional CompositingDisplayItem compositing_item = 1002;
  optional DrawingDisplayItem drawing_item = 1003;
  optional FilterDisplayItem filter_item = 1004;
  optional FloatClipDisplayItem float_clip_item = 1005;
  optional TransformDisplayItem transform_item = 1006;
}

message ClipDisplayItem {
  optional cc.proto.Rect clip_rect = 1;
  repeated cc.proto.SkRRect rounded_rects = 2;
  optional bool antialias = 3;
}

message ClipPathDisplayItem {
  optional cc.proto.SkRegion.Op clip_op = 1;
  optional bool antialias = 2;
  optional bytes clip_path = 3; /* SkPath */
}

message CompositingDisplayItem {
  optional uint32 alpha = 1;
  optional cc.proto.SkXfermode.Mode mode = 2;
  optional cc.proto.RectF bounds = 3;
  optional bytes color_filter = 4; /* SkColorFilter */
  optional bool lcd_text_requires_opaque_layer = 5;
}

message SkPictureID {
  optional uint32 unique_id = 1;
}

message DrawingDisplayItem {
  optional SkPictureID id = 1;
}

message FilterDisplayItem {
  optional cc.proto.RectF bounds = 1;

  // TODO(dtrainor): Support FilterOperations.
}

message FloatClipDisplayItem {
  optional cc.proto.RectF clip_rect = 1;
}

message TransformDisplayItem {
  optional cc.proto.Transform transform = 1;
}