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52 lines
2.1 KiB
Plaintext
52 lines
2.1 KiB
Plaintext
// Copyright 2016 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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module data_decoder.mojom;
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import "mojo/public/mojom/base/time.mojom";
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import "skia/public/interfaces/bitmap.mojom";
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import "ui/gfx/geometry/mojo/geometry.mojom";
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enum ImageCodec {
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DEFAULT,
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ROBUST_JPEG,
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ROBUST_PNG,
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};
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struct AnimationFrame {
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// TODO(https://crbug.com/838706): Cnonsider replacing individual Bitmap
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// structs with a new type that uses a single BigBuffer for all frame data.
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skia.mojom.InlineBitmap bitmap;
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mojo_base.mojom.TimeDelta duration;
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};
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interface ImageDecoder {
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// Decodes image data to a raw skia bitmap.
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//
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// If the total size of the decoded image data in bytes exceeds
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// |max_size_in_bytes| and |shrink_to_fit| is true, the image is halved
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// successively until its total size no longer exceeds |max_size_in_bytes|.
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//
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// If the total size of the decoded image data in bytes exceeds
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// |max_size_in_bytes| and |shrink_to_fit| is false, this is treated as a
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// decoding failure and the |decoded_image| response is null.
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DecodeImage(array<uint8> encoded_data, ImageCodec codec, bool shrink_to_fit,
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int64 max_size_in_bytes, gfx.mojom.Size desired_image_frame_size)
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=> (skia.mojom.Bitmap? decoded_image);
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// Decodes the image in |encoded_data|. This will return all frames in the
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// image and assumes it is an animation (instead of say, a multi-sized image).
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//
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// If the total size of the decoded image data in bytes exceeds
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// |max_size_in_bytes| and |shrink_to_fit| is true, the image is halved
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// successively until its total size no longer exceeds |max_size_in_bytes|.
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//
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// If the total size of the decoded image data in bytes exceeds
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// |max_size_in_bytes| and |shrink_to_fit| is false, this is treated as a
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// decoding failure and the |decoded_image| response is null.
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DecodeAnimation(array<uint8> encoded_data, bool shrink_to_fit,
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int64 max_size_in_bytes)
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=> (array<AnimationFrame> decoded_image);
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};
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