RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-27 07:47:35 +00:00
Code Issues Activity Actions

LibGfx: Remove restrictive checks

Browse source 
These checks are only valid for mono-scan SOF0 images, with tables
defined before the start of frame segment.
This commit is contained in:
Lucas CHOLLET 2023-02-25 15:15:55 -05:00 • committed by Andreas Kling
parent d3231ca323
commit 698605444b
1 changed files with 1 additions and 20 deletions
Download patch file Download diff file Expand all files Collapse all files

21
Userland/Libraries/LibGfx/JPEGLoader.cpp
View file

@ -553,11 +553,7 @@ static ErrorOr<void> read_start_of_scan(AK::SeekableStream& stream, JPEGLoadingC
u16 bytes_to_read = TRY(stream.read_value<BigEndian<u16>>()) - 2;
TRY(ensure_bounds_okay(TRY(stream.tell()), bytes_to_read, context.data_size));
u8 component_count = TRY(stream.read_value<u8>());
if (component_count != context.components.size()) {
dbgln_if(JPEG_DEBUG, "{}: Unsupported number of components: {}!", TRY(stream.tell()), component_count);
return Error::from_string_literal("Unsupported number of components");
}
[[maybe_unused]] u8 const component_count = TRY(stream.read_value<u8>());
Scan current_scan;
@ -573,21 +569,6 @@ static ErrorOr<void> read_start_of_scan(AK::SeekableStream& stream, JPEGLoadingC
ScanComponent scan_component { component, static_cast<u8>(table_ids >> 4), static_cast<u8>(table_ids & 0x0F) };
if (context.dc_tables.size() != context.ac_tables.size()) {
dbgln_if(JPEG_DEBUG, "{}: DC & AC table count mismatch!", TRY(stream.tell()));
return Error::from_string_literal("DC & AC table count mismatch");
}
if (!context.dc_tables.contains(scan_component.dc_destination_id)) {
dbgln_if(JPEG_DEBUG, "DC table (id: {}) does not exist!", scan_component.dc_destination_id);
return Error::from_string_literal("DC table does not exist");
}
if (!context.ac_tables.contains(scan_component.ac_destination_id)) {
dbgln_if(JPEG_DEBUG, "AC table (id: {}) does not exist!", scan_component.ac_destination_id);
return Error::from_string_literal("AC table does not exist");
}
current_scan.components.append(scan_component);
}