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serenity/Meta/Lagom/Fuzzers/FuzzGIFLoader.cpp
Andreas Kling 5a79c69b02 LibGfx: Make ImageDecoderPlugin::frame() return ErrorOr<>
This is a first step towards better error propagation from image codecs.
2021-11-21 20:22:48 +01:00

36 lines
1.4 KiB
C++

/*
* Copyright (c) 2020, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/Debug.h>
#include <AK/Format.h>
#include <AK/String.h>
#include <LibGfx/GIFLoader.h>
#include <stddef.h>
#include <stdint.h>
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
{
Gfx::GIFImageDecoderPlugin gif_decoder(data, size);
auto bitmap_or_error = gif_decoder.frame(0);
if (!bitmap_or_error.is_error()) {
auto const& bitmap = bitmap_or_error.value().image;
// Looks like a valid GIF. Try to load the other frames:
dbgln_if(GIF_DEBUG, "bitmap size: {}", bitmap->size());
dbgln_if(GIF_DEBUG, "codec size: {}", gif_decoder.size());
dbgln_if(GIF_DEBUG, "is_sniff: {}", gif_decoder.sniff());
dbgln_if(GIF_DEBUG, "is_animated: {}", gif_decoder.is_animated());
dbgln_if(GIF_DEBUG, "loop_count: {}", gif_decoder.loop_count());
dbgln_if(GIF_DEBUG, "frame_count: {}", gif_decoder.frame_count());
for (size_t i = 0; i < gif_decoder.frame_count(); ++i) {
auto ifd = gif_decoder.frame(i).release_value_but_fixme_should_propagate_errors();
dbgln_if(GIF_DEBUG, "frame #{} size: {}", i, ifd.image->size());
dbgln_if(GIF_DEBUG, "frame #{} duration: {}", i, ifd.duration);
}
dbgln_if(GIF_DEBUG, "Done.");
}
return 0;
}