naiveproxy/ui/gfx/image/mojo/image.mojom

// Copyright 2017 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.

module gfx.mojom;

// Mojo transport for a SkBitmap via shared buffer.
// TODO: Merge into bitmap.mojom in skia and maybe share pixel buffer directly
//       to make less copies.
struct SharedBufferSkBitmap {
  // Shared buffer handle to hold a serialized SkBitmap.
  handle<shared_buffer> shared_buffer_handle;

  // Byte size of the shared buffer.
  uint64 buffer_byte_size;
};

// Mojo transport for an ImageSkiaRep using SharedBufferSkBitmap.
struct ImageSkiaRep {
  // Transport of the bitmap in this representation.
  SharedBufferSkBitmap bitmap;

  // Corresponding scale of the bitmap or 0 if unscaled.
  float scale;
};

// Mojo transport for an ImageSkia via shared buffer. Note that transporting an
// ImageSkia over mojo will load all of its image representations for supported
// scales.
struct ImageSkia {
  array<ImageSkiaRep> image_reps;
};