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Code Issues Activity Actions

LibGfx+Fallout: Make ImageDecoder return ErrorOr

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...from try_create_for_raw_bytes().

If a plugin returns `true` from sniff but then fails when calling
its `create()` method, we now no longer swallow that error.

Allows `image` (and other places in the system) to print a more
actionable error if early image headers are invalid.

(We now no longer try to find another plugin that can also handle
the image.)

Fixes a regression from #20063 / #19893 -- before then, we didn't
do fallible work this early.
This commit is contained in:
Nico Weber 2024-03-04 18:07:43 -05:00 • committed by Tim Flynn
parent be5e7a360f
commit 2e2cae26c6
12 changed files with 22 additions and 22 deletions
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2
Userland/Applications/FileManager/PropertiesWindow.cpp
View file

@ -403,7 +403,7 @@ ErrorOr<void> PropertiesWindow::create_font_tab(GUI::TabWidget& tab_widget, Nonn
ErrorOr<void> PropertiesWindow::create_image_tab(GUI::TabWidget& tab_widget, NonnullOwnPtr<Core::MappedFile> mapped_file, StringView mime_type)
{
auto image_decoder = Gfx::ImageDecoder::try_create_for_raw_bytes(mapped_file->bytes(), mime_type);
auto image_decoder = TRY(Gfx::ImageDecoder::try_create_for_raw_bytes(mapped_file->bytes(), mime_type));
if (!image_decoder)
return {};

2
Userland/Applications/ImageViewer/ViewWidget.cpp
View file

@ -224,7 +224,7 @@ ErrorOr<void> ViewWidget::try_open_file(String const& path, Core::File& file)
Vector<Animation::Frame> frames;
// Note: Doing this check only requires reading the header of images
// (so if the image is not vector graphics it can be still be decoded OOP).
if (auto decoder = Gfx::ImageDecoder::try_create_for_raw_bytes(file_data); decoder && decoder->natural_frame_format() == Gfx::NaturalFrameFormat::Vector) {
if (auto decoder = TRY(Gfx::ImageDecoder::try_create_for_raw_bytes(file_data)); decoder && decoder->natural_frame_format() == Gfx::NaturalFrameFormat::Vector) {
// Use in-process decoding for vector graphics.
is_animated = decoder->is_animated();
loop_count = decoder->loop_count();

5
Userland/Applications/Maps/MapWidget.cpp
View file

@ -341,11 +341,12 @@ void MapWidget::process_tile_queue()
m_first_image_loaded = true;
// Decode loaded PNG image data
auto decoder = Gfx::ImageDecoder::try_create_for_raw_bytes(payload, "image/png");
if (!decoder || (decoder->frame_count() == 0)) {
auto decoder_or_err = Gfx::ImageDecoder::try_create_for_raw_bytes(payload, "image/png");
if (decoder_or_err.is_error() || !decoder_or_err.value() || (decoder_or_err.value()->frame_count() == 0)) {
dbgln("Maps: Can't decode image: {}", url);
return;
}
auto decoder = decoder_or_err.release_value();
m_tiles.set(tile_key, decoder->frame(0).release_value_but_fixme_should_propagate_errors().image);
// FIXME: only update the part of the screen that this tile covers