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ImageDecoder: Add plumbing to allow a client to request an ideal size

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This is only used for vector graphics format where requesting the true
displayed size leads to visual enhancement.
This commit is contained in:
Lucas CHOLLET 2023-12-23 13:56:23 -05:00 committed by Andreas Kling
parent 4c23f0e142
commit e56eb11dee
Notes: sideshowbarker 2024-07-17 08:38:37 +09:00 
Author: https://github.com/LucasChollet
Commit: https://github.com/SerenityOS/serenity/commit/e56eb11dee
Pull-request: https://github.com/SerenityOS/serenity/pull/22066
Reviewed-by: https://github.com/MacDue
Reviewed-by: https://github.com/awesomekling
7 changed files with 13 additions and 13 deletions
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2
Userland/Applications/ImageViewer/ViewWidget.cpp
View File

@ -237,7 +237,7 @@ ErrorOr<void> ViewWidget::try_open_file(String const& path, Core::File& file)
// Use out-of-process decoding for raster formats.
auto client = TRY(ImageDecoderClient::Client::try_create());
auto mime_type = Core::guess_mime_type_based_on_filename(path);
auto decoded_image = client->decode_image(file_data, mime_type);
auto decoded_image = client->decode_image(file_data, OptionalNone {}, mime_type);
if (!decoded_image.has_value()) {
return Error::from_string_literal("Failed to decode image");
}

2
Userland/Applications/PixelPaint/Image.cpp
View File

@ -57,7 +57,7 @@ ErrorOr<NonnullRefPtr<Gfx::Bitmap>> Image::decode_bitmap(ReadonlyBytes bitmap_da
auto optional_mime_type = guessed_mime_type.map([](auto mime_type) { return mime_type.to_byte_string(); });
// FIXME: Find a way to avoid the memory copying here.
auto maybe_decoded_image = client->decode_image(bitmap_data, optional_mime_type);
auto maybe_decoded_image = client->decode_image(bitmap_data, OptionalNone {}, optional_mime_type);
if (!maybe_decoded_image.has_value())
return Error::from_string_literal("Image decode failed");

4
Userland/Libraries/LibImageDecoderClient/Client.cpp
View File

@ -20,7 +20,7 @@ void Client::die()
on_death();
}
Optional<DecodedImage> Client::decode_image(ReadonlyBytes encoded_data, Optional<ByteString> mime_type)
Optional<DecodedImage> Client::decode_image(ReadonlyBytes encoded_data, Optional<Gfx::IntSize> ideal_size, Optional<ByteString> mime_type)
{
if (encoded_data.is_empty())
return {};
@ -33,7 +33,7 @@ Optional<DecodedImage> Client::decode_image(ReadonlyBytes encoded_data, Optional
auto encoded_buffer = encoded_buffer_or_error.release_value();
memcpy(encoded_buffer.data<void>(), encoded_data.data(), encoded_data.size());
auto response_or_error = try_decode_image(move(encoded_buffer), mime_type);
auto response_or_error = try_decode_image(move(encoded_buffer), ideal_size, mime_type);
if (response_or_error.is_error()) {
dbgln("ImageDecoder died heroically");

2
Userland/Libraries/LibImageDecoderClient/Client.h
View File

@ -32,7 +32,7 @@ class Client final
public:
Client(NonnullOwnPtr<Core::LocalSocket>);
Optional<DecodedImage> decode_image(ReadonlyBytes, Optional<ByteString> mime_type = {});
Optional<DecodedImage> decode_image(ReadonlyBytes, Optional<Gfx::IntSize> ideal_size = {}, Optional<ByteString> mime_type = {});
Function<void()> on_death;

12
Userland/Services/ImageDecoder/ConnectionFromClient.cpp
View File

@ -22,10 +22,10 @@ void ConnectionFromClient::die()
Core::EventLoop::current().quit(0);
}
static void decode_image_to_bitmaps_and_durations_with_decoder(Gfx::ImageDecoder const& decoder, Vector<Gfx::ShareableBitmap>& bitmaps, Vector<u32>& durations)
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);
auto frame_or_error = decoder.frame(i, ideal_size);
if (frame_or_error.is_error()) {
bitmaps.append(Gfx::ShareableBitmap {});
durations.append(0);
@ -37,7 +37,7 @@ static void decode_image_to_bitmaps_and_durations_with_decoder(Gfx::ImageDecoder
}
}
static void decode_image_to_details(Core::AnonymousBuffer const& encoded_buffer, Optional<ByteString> const& known_mime_type, bool& is_animated, u32& loop_count, Vector<Gfx::ShareableBitmap>& bitmaps, Vector<u32>& durations)
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);
@ -54,10 +54,10 @@ static void decode_image_to_details(Core::AnonymousBuffer const& encoded_buffer,
}
is_animated = decoder->is_animated();
loop_count = decoder->loop_count();
decode_image_to_bitmaps_and_durations_with_decoder(*decoder, bitmaps, durations);
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<ByteString> const& mime_type)
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");
@ -68,7 +68,7 @@ Messages::ImageDecoderServer::DecodeImageResponse ConnectionFromClient::decode_i
u32 loop_count = 0;
Vector<Gfx::ShareableBitmap> bitmaps;
Vector<u32> durations;
decode_image_to_details(encoded_buffer, mime_type, is_animated, loop_count, bitmaps, durations);
decode_image_to_details(encoded_buffer, ideal_size, mime_type, is_animated, loop_count, bitmaps, durations);
return { is_animated, loop_count, bitmaps, durations };
}

2
Userland/Services/ImageDecoder/ConnectionFromClient.h
View File

@ -26,7 +26,7 @@ public:
private:
explicit ConnectionFromClient(NonnullOwnPtr<Core::LocalSocket>);
virtual Messages::ImageDecoderServer::DecodeImageResponse decode_image(Core::AnonymousBuffer const&, Optional<ByteString> const& mime_type) override;
virtual Messages::ImageDecoderServer::DecodeImageResponse decode_image(Core::AnonymousBuffer const&, Optional<Gfx::IntSize> const& ideal_size, Optional<ByteString> const& mime_type) override;
};
}

2
Userland/Services/ImageDecoder/ImageDecoderServer.ipc
View File

@ -3,5 +3,5 @@
endpoint ImageDecoderServer
{
decode_image(Core::AnonymousBuffer data, Optional<ByteString> mime_type) => (bool is_animated, u32 loop_count, Vector<Gfx::ShareableBitmap> bitmaps, Vector<u32> durations)
decode_image(Core::AnonymousBuffer data, Optional<Gfx::IntSize> ideal_size, Optional<ByteString> mime_type) => (bool is_animated, u32 loop_count, Vector<Gfx::ShareableBitmap> bitmaps, Vector<u32> durations)
}