mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-11-11 01:06:01 +03:00
e56eb11dee
This is only used for vector graphics format where requesting the true displayed size leads to visual enhancement.
76 lines
2.8 KiB
C++
76 lines
2.8 KiB
C++
/*
|
|
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include <AK/Debug.h>
|
|
#include <ImageDecoder/ConnectionFromClient.h>
|
|
#include <ImageDecoder/ImageDecoderClientEndpoint.h>
|
|
#include <LibGfx/Bitmap.h>
|
|
#include <LibGfx/ImageFormats/ImageDecoder.h>
|
|
|
|
namespace ImageDecoder {
|
|
|
|
ConnectionFromClient::ConnectionFromClient(NonnullOwnPtr<Core::LocalSocket> socket)
|
|
: IPC::ConnectionFromClient<ImageDecoderClientEndpoint, ImageDecoderServerEndpoint>(*this, move(socket), 1)
|
|
{
|
|
}
|
|
|
|
void ConnectionFromClient::die()
|
|
{
|
|
Core::EventLoop::current().quit(0);
|
|
}
|
|
|
|
static void decode_image_to_bitmaps_and_durations_with_decoder(Gfx::ImageDecoder const& decoder, Optional<Gfx::IntSize> ideal_size, Vector<Gfx::ShareableBitmap>& bitmaps, Vector<u32>& durations)
|
|
{
|
|
for (size_t i = 0; i < decoder.frame_count(); ++i) {
|
|
auto frame_or_error = decoder.frame(i, ideal_size);
|
|
if (frame_or_error.is_error()) {
|
|
bitmaps.append(Gfx::ShareableBitmap {});
|
|
durations.append(0);
|
|
} else {
|
|
auto frame = frame_or_error.release_value();
|
|
bitmaps.append(frame.image->to_shareable_bitmap());
|
|
durations.append(frame.duration);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void decode_image_to_details(Core::AnonymousBuffer const& encoded_buffer, Optional<Gfx::IntSize> ideal_size, Optional<ByteString> const& known_mime_type, bool& is_animated, u32& loop_count, Vector<Gfx::ShareableBitmap>& bitmaps, Vector<u32>& durations)
|
|
{
|
|
VERIFY(bitmaps.size() == 0);
|
|
VERIFY(durations.size() == 0);
|
|
|
|
auto decoder = Gfx::ImageDecoder::try_create_for_raw_bytes(ReadonlyBytes { encoded_buffer.data<u8>(), encoded_buffer.size() }, known_mime_type);
|
|
if (!decoder) {
|
|
dbgln_if(IMAGE_DECODER_DEBUG, "Could not find suitable image decoder plugin for data");
|
|
return;
|
|
}
|
|
|
|
if (!decoder->frame_count()) {
|
|
dbgln_if(IMAGE_DECODER_DEBUG, "Could not decode image from encoded data");
|
|
return;
|
|
}
|
|
is_animated = decoder->is_animated();
|
|
loop_count = decoder->loop_count();
|
|
decode_image_to_bitmaps_and_durations_with_decoder(*decoder, ideal_size, bitmaps, durations);
|
|
}
|
|
|
|
Messages::ImageDecoderServer::DecodeImageResponse ConnectionFromClient::decode_image(Core::AnonymousBuffer const& encoded_buffer, Optional<Gfx::IntSize> const& ideal_size, Optional<ByteString> const& mime_type)
|
|
{
|
|
if (!encoded_buffer.is_valid()) {
|
|
dbgln_if(IMAGE_DECODER_DEBUG, "Encoded data is invalid");
|
|
return nullptr;
|
|
}
|
|
|
|
bool is_animated = false;
|
|
u32 loop_count = 0;
|
|
Vector<Gfx::ShareableBitmap> bitmaps;
|
|
Vector<u32> durations;
|
|
decode_image_to_details(encoded_buffer, ideal_size, mime_type, is_animated, loop_count, bitmaps, durations);
|
|
return { is_animated, loop_count, bitmaps, durations };
|
|
}
|
|
|
|
}
|