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Serenity Operating System
1/*
2 * Copyright (c) 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#include <AK/SharedBuffer.h>
28#include <LibGfx/Bitmap.h>
29#include <LibGfx/ShareableBitmap.h>
30#include <LibIPC/Decoder.h>
31
32namespace Gfx {
33
34ShareableBitmap::ShareableBitmap(const Bitmap& bitmap)
35 : m_bitmap(bitmap.to_bitmap_backed_by_shared_buffer())
36{
37}
38
39}
40
41namespace IPC {
42
43bool decode(Decoder& decoder, Gfx::ShareableBitmap& shareable_bitmap)
44{
45 i32 shbuf_id = 0;
46 Gfx::Size size;
47 if (!decoder.decode(shbuf_id))
48 return false;
49 if (!decoder.decode(size))
50 return false;
51
52 if (shbuf_id == -1)
53 return true;
54
55 dbg() << "Decoding a ShareableBitmap with shbuf_id=" << shbuf_id << ", size=" << size;
56
57 auto shared_buffer = SharedBuffer::create_from_shbuf_id(shbuf_id);
58 if (!shared_buffer)
59 return false;
60
61 auto bitmap = Gfx::Bitmap::create_with_shared_buffer(Gfx::BitmapFormat::RGBA32, shared_buffer.release_nonnull(), size);
62 shareable_bitmap = bitmap->to_shareable_bitmap();
63 return true;
64}
65
66}