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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(const Bitmap& bitmap)
: m_bitmap(bitmap.to_bitmap_backed_by_anonymous_buffer())
{
}
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;
}
bool decode(Decoder& decoder, Gfx::ShareableBitmap& shareable_bitmap)
{
bool valid = false;
if (!decoder.decode(valid))
return false;
if (!valid) {
shareable_bitmap = {};
return true;
}
IPC::File anon_file;
if (!decoder.decode(anon_file))
return false;
Gfx::IntSize size;
if (!decoder.decode(size))
return false;
u32 scale;
if (!decoder.decode(scale))
return false;
u32 raw_bitmap_format;
if (!decoder.decode(raw_bitmap_format))
return false;
if (!Gfx::is_valid_bitmap_format(raw_bitmap_format))
return false;
auto bitmap_format = (Gfx::BitmapFormat)raw_bitmap_format;
Vector<Gfx::RGBA32> palette;
if (Gfx::Bitmap::is_indexed(bitmap_format)) {
if (!decoder.decode(palette))
return false;
}
auto buffer = 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()));
if (!buffer.is_valid())
return false;
auto bitmap = Gfx::Bitmap::try_create_with_anonymous_buffer(bitmap_format, buffer, size, scale, palette);
if (!bitmap)
return false;
shareable_bitmap = Gfx::ShareableBitmap { bitmap.release_nonnull(), Gfx::ShareableBitmap::ConstructWithKnownGoodBitmap };
return true;
}
}
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