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LibGfx/ILBM: Don't attempt to decode a BODY chunk without a color map

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While this isn't disallowed by the specification, it is not something
we currently support. Instead of crashing we now return an error in
this case.
This commit is contained in:
Tim Ledbetter 2023-10-30 16:24:55 +00:00 committed by Andreas Kling
parent 75731f9c50
commit bed7b33daa
1 changed files with 3 additions and 0 deletions
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3
Userland/Libraries/LibGfx/ImageFormats/ILBMLoader.cpp
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@ -298,6 +298,9 @@ static ErrorOr<void> decode_iff_chunks(ILBMLoadingContext& context)
if (chunk.type == FourCC("CMAP")) {
context.color_table = TRY(decode_cmap_chunk(chunk));
} else if (chunk.type == FourCC("BODY")) {
if (context.color_table.is_empty())
return Error::from_string_literal("Decoding BODY chunk without a color map is not currently supported");
TRY(decode_body_chunk(chunk, context));
context.state = ILBMLoadingContext::State::BitmapDecoded;
} else if (chunk.type == FourCC("CRNG")) {