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/*
* Copyright 2023 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <fuzzer/FuzzedDataProvider.h>
#include <iostream>
#include <memory>
#include "ultrahdr/jpegr.h"
using namespace ultrahdr;
// Transfer functions for image data, sync with ultrahdr.h
const int kOfMin = ULTRAHDR_OUTPUT_UNSPECIFIED + 1;
const int kOfMax = ULTRAHDR_OUTPUT_MAX;
class UltraHdrDecFuzzer {
public:
UltraHdrDecFuzzer(const uint8_t* data, size_t size) : mFdp(data, size){};
void process();
private:
FuzzedDataProvider mFdp;
};
void UltraHdrDecFuzzer::process() {
// hdr_of
auto of = static_cast<ultrahdr_output_format>(mFdp.ConsumeIntegralInRange<int>(kOfMin, kOfMax));
auto buffer = mFdp.ConsumeRemainingBytes<uint8_t>();
jpegr_compressed_struct jpegImgR{buffer.data(), (int)buffer.size(), (int)buffer.size(),
ULTRAHDR_COLORGAMUT_UNSPECIFIED};
jpegr_info_struct info{};
JpegR jpegHdr;
(void)jpegHdr.getJPEGRInfo(&jpegImgR, &info);
//#define DUMP_PARAM
#ifdef DUMP_PARAM
std::cout << "input buffer size " << jpegImgR.length << std::endl;
std::cout << "image dimensions " << info.width << " x " << info.width << std::endl;
#endif
if (info.width > kMaxWidth || info.height > kMaxHeight) return;
size_t outSize = info.width * info.height * ((of == ULTRAHDR_OUTPUT_HDR_LINEAR) ? 8 : 4);
jpegr_uncompressed_struct decodedJpegR;
auto decodedRaw = std::make_unique<uint8_t[]>(outSize);
decodedJpegR.data = decodedRaw.get();
ultrahdr_metadata_struct metadata;
jpegr_uncompressed_struct decodedGainMap{};
(void)jpegHdr.decodeJPEGR(&jpegImgR, &decodedJpegR,
mFdp.ConsumeFloatingPointInRange<float>(1.0, FLT_MAX), nullptr, of,
&decodedGainMap, &metadata);
if (decodedGainMap.data) free(decodedGainMap.data);
}
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
UltraHdrDecFuzzer fuzzHandle(data, size);
fuzzHandle.process();
return 0;
}
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