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/*
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibGfx/Bitmap.h>
#include <LibGfx/ShareableBitmap.h>
#include <LibGfx/Size.h>
#include <LibIPC/Decoder.h>
#include <LibIPC/Encoder.h>
#include <LibIPC/File.h>
namespace Gfx {
ShareableBitmap::ShareableBitmap(NonnullRefPtr<Bitmap> bitmap, Tag)
: m_bitmap(move(bitmap))
{
}
}
namespace IPC {
bool encode(Encoder& encoder, const Gfx::ShareableBitmap& shareable_bitmap)
{
encoder << shareable_bitmap.is_valid();
if (!shareable_bitmap.is_valid())
return true;
auto& bitmap = *shareable_bitmap.bitmap();
encoder << IPC::File(bitmap.anonymous_buffer().fd());
encoder << bitmap.size();
encoder << bitmap.scale();
encoder << (u32)bitmap.format();
if (bitmap.is_indexed()) {
auto palette = bitmap.palette_to_vector();
encoder << palette;
}
return true;
}
ErrorOr<void> decode(Decoder& decoder, Gfx::ShareableBitmap& shareable_bitmap)
{
bool valid = false;
TRY(decoder.decode(valid));
if (!valid) {
shareable_bitmap = {};
return {};
}
IPC::File anon_file;
TRY(decoder.decode(anon_file));
Gfx::IntSize size;
TRY(decoder.decode(size));
u32 scale;
TRY(decoder.decode(scale));
u32 raw_bitmap_format;
TRY(decoder.decode(raw_bitmap_format));
if (!Gfx::is_valid_bitmap_format(raw_bitmap_format))
return Error::from_string_literal("IPC: Invalid Gfx::ShareableBitmap format"sv);
auto bitmap_format = (Gfx::BitmapFormat)raw_bitmap_format;
Vector<Gfx::RGBA32> palette;
if (Gfx::Bitmap::is_indexed(bitmap_format)) {
TRY(decoder.decode(palette));
}
auto buffer = TRY(Core::AnonymousBuffer::create_from_anon_fd(anon_file.take_fd(), Gfx::Bitmap::size_in_bytes(Gfx::Bitmap::minimum_pitch(size.width(), bitmap_format), size.height())));
auto bitmap = TRY(Gfx::Bitmap::try_create_with_anonymous_buffer(bitmap_format, move(buffer), size, scale, palette));
shareable_bitmap = Gfx::ShareableBitmap { move(bitmap), Gfx::ShareableBitmap::ConstructWithKnownGoodBitmap };
return {};
}
}
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