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Serenity Operating System
1/*
2 * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice, this
9 * list of conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice,
12 * this list of conditions and the following disclaimer in the documentation
13 * and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
22 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
23 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#pragma once
28
29#include <AK/NonnullRefPtr.h>
30#include <AK/OwnPtr.h>
31#include <AK/RefCounted.h>
32#include <LibGfx/Size.h>
33
34namespace Gfx {
35
36class Bitmap;
37
38class ImageDecoderPlugin {
39public:
40 virtual ~ImageDecoderPlugin() {}
41
42 virtual Size size() = 0;
43 virtual RefPtr<Gfx::Bitmap> bitmap() = 0;
44
45 virtual void set_volatile() = 0;
46 [[nodiscard]] virtual bool set_nonvolatile() = 0;
47
48protected:
49 ImageDecoderPlugin() {}
50};
51
52class ImageDecoder : public RefCounted<ImageDecoder> {
53public:
54 static NonnullRefPtr<ImageDecoder> create(const u8* data, size_t size) { return adopt(*new ImageDecoder(data, size)); }
55 ~ImageDecoder();
56
57 Size size() const { return m_plugin->size(); }
58 int width() const { return size().width(); }
59 int height() const { return size().height(); }
60 RefPtr<Gfx::Bitmap> bitmap() const;
61 void set_volatile() { m_plugin->set_volatile(); }
62 [[nodiscard]] bool set_nonvolatile() { return m_plugin->set_nonvolatile(); }
63
64private:
65 ImageDecoder(const u8*, size_t);
66
67 mutable OwnPtr<ImageDecoderPlugin> m_plugin;
68};
69
70}