Merge "Revert "Refactored libcameraservice_depth_processor_fuzzer"" into main

using namespace android;

using namespace android::camera3;

static const float kMinRatio = 0.1f;

static const float kMaxRatio = 0.9f;

static const uint8_t kTotalDepthJpegBufferCount = 3;

static const uint8_t kIntrinsicCalibrationSize = 5;

static const uint8_t kLensDistortionSize = 5;

static const uint8_t kDqtSize = 5;

static const uint16_t kMinDimension = 2;

static const uint16_t kMaxDimension = 1024;

static const DepthPhotoOrientation kDepthPhotoOrientations[] = {

        DepthPhotoOrientation::DEPTH_ORIENTATION_0_DEGREES,

    }

}

void fillRandomBufferData(std::vector<unsigned char>& buffer, size_t bytes,

                          FuzzedDataProvider& fdp) {

    while (bytes--) {

        buffer.push_back(fdp.ConsumeIntegral<uint8_t>());

    }

}

void addMarkersInJpegBuffer(std::vector<uint8_t>& Buffer, size_t& height, size_t& width,

                            FuzzedDataProvider& fdp) {

    /* Add the SOI Marker */

    Buffer.push_back(0xFF);

    Buffer.push_back(0xD8);

    /* Add the JFIF Header */

    const char header[] = {0xFF, 0xE0, 0x00, 0x10, 0x4A, 0x46, 0x49, 0x46, 0x00,

                           0x01, 0x01, 0x00, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00};

    Buffer.insert(Buffer.end(), header, header + sizeof(header));

    /* Add the SOF Marker */

    Buffer.push_back(0xFF);

    Buffer.push_back(0xC0);

    Buffer.push_back(0x00);  // Length high byte

    Buffer.push_back(0x11);  // Length low byte

    Buffer.push_back(fdp.ConsumeIntegral<uint8_t>());  // Random precision

    height = fdp.ConsumeIntegralInRange<uint16_t>(kMinDimension, kMaxDimension);  // Image height

    Buffer.push_back((height & 0xFF00) >> 8);

    Buffer.push_back(height & 0x00FF);

    width = fdp.ConsumeIntegralInRange<uint16_t>(kMinDimension, kMaxDimension);  // Image width

    Buffer.push_back((width & 0xFF00) >> 8);

    Buffer.push_back(width & 0x00FF);

    Buffer.push_back(0x03);  // Number of components (3 for Y, Cb, Cr)

    /* Add DQT (Define Quantization Table) Marker */

    Buffer.push_back(0xFF);

    Buffer.push_back(0xDB);

    Buffer.push_back(0x00);  // Length high byte

    Buffer.push_back(0x43);  // Length low byte

    Buffer.push_back(0x00);  // Precision and table identifier

    fillRandomBufferData(Buffer, kDqtSize, fdp);  // Random DQT data

    /* Add the Component Data */

    unsigned char componentData[] = {0x01, 0x21, 0x00, 0x02, 0x11, 0x01, 0x03, 0x11, 0x01};

    Buffer.insert(Buffer.end(), componentData, componentData + sizeof(componentData));

    /* Add the DHT (Define Huffman Table) Marker */

    Buffer.push_back(0xFF);

    Buffer.push_back(0xC4);

    Buffer.push_back(0x00);  // Length high byte

    Buffer.push_back(0x1F);  // Length low byte

    Buffer.push_back(0x00);                 // Table class and identifier

    fillRandomBufferData(Buffer, 16, fdp);  // 16 codes for lengths

    fillRandomBufferData(Buffer, 12, fdp);  // Values

    /* Add the SOS (Start of Scan) Marker */

    Buffer.push_back(0xFF);

    Buffer.push_back(0xDA);

    Buffer.push_back(0x00);  // Length high byte

    Buffer.push_back(0x0C);  // Length low byte

    Buffer.push_back(0x03);  // Number of components (3 for Y, Cb, Cr)

    unsigned char sosComponentData[] = {0x01, 0x00, 0x02, 0x11, 0x03, 0x11};

    Buffer.insert(Buffer.end(), sosComponentData, sosComponentData + sizeof(sosComponentData));

extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {

    FuzzedDataProvider fdp(data, size);

    Buffer.push_back(0x00);  // Spectral selection start

    Buffer.push_back(0x3F);  // Spectral selection end

    Buffer.push_back(0x00);  // Successive approximation

    DepthPhotoInputFrame inputFrame;

    size_t remainingBytes = (256 * 1024) - Buffer.size() - 2;  // Subtract 2 for EOI marker

    fillRandomBufferData(Buffer, remainingBytes, fdp);

    /**

     * Consuming 80% of the data to set mMainJpegBuffer. This ensures that we

     * don't completely exhaust data and use the rest 20% for fuzzing of APIs.

     */

    std::vector<uint8_t> buffer = fdp.ConsumeBytes<uint8_t>((size * 80) / 100);

    inputFrame.mMainJpegBuffer = reinterpret_cast<const char*>(buffer.data());

    /* Add the EOI Marker */

    Buffer.push_back(0xFF);

    Buffer.push_back(0xD9);

}

    /**

     * Calculate height and width based on buffer size and a ratio within [0.1, 0.9].

     * The ratio adjusts the dimensions while maintaining a relationship to the total buffer size.

     */

    const float ratio = fdp.ConsumeFloatingPointInRange<float>(kMinRatio, kMaxRatio);

    const size_t height = std::sqrt(buffer.size()) * ratio;

    const size_t width = std::sqrt(buffer.size()) / ratio;

extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {

    FuzzedDataProvider fdp(data, size);

    inputFrame.mMainJpegHeight = height;

    inputFrame.mMainJpegWidth = width;

    inputFrame.mMainJpegSize = buffer.size();

    // Worst case both depth and confidence maps have the same size as the main color image.

    inputFrame.mMaxJpegSize = inputFrame.mMainJpegSize * kTotalDepthJpegBufferCount;

    DepthPhotoInputFrame inputFrame;

    std::vector<uint16_t> depth16Buffer(height * width);

    generateDepth16Buffer(&depth16Buffer, height * width, fdp);

    inputFrame.mDepthMapBuffer = depth16Buffer.data();

    inputFrame.mDepthMapHeight = height;

    inputFrame.mDepthMapWidth = inputFrame.mDepthMapStride = width;

    inputFrame.mIsLogical = fdp.ConsumeBool();

    inputFrame.mJpegQuality = fdp.ConsumeProbability<float>() * 100;

    inputFrame.mOrientation = fdp.PickValueInArray<DepthPhotoOrientation>(kDepthPhotoOrientations);

    if (fdp.ConsumeBool()) {

        inputFrame.mIsLensDistortionValid = 1;

    }

    std::vector<uint8_t> Buffer;

    size_t height, width;

    addMarkersInJpegBuffer(Buffer, height, width, fdp);

    inputFrame.mMainJpegBuffer = reinterpret_cast<const char*>(Buffer.data());

    inputFrame.mMainJpegHeight = height;

    inputFrame.mMainJpegWidth = width;

    inputFrame.mMainJpegSize = Buffer.size();

    // Worst case both depth and confidence maps have the same size as the main color image.

    inputFrame.mMaxJpegSize = inputFrame.mMainJpegSize * kTotalDepthJpegBufferCount;

    std::vector<uint16_t> depth16Buffer(height * width);

    generateDepth16Buffer(&depth16Buffer, height * width, fdp);

    inputFrame.mDepthMapBuffer = depth16Buffer.data();

    inputFrame.mDepthMapHeight = height;

    inputFrame.mDepthMapWidth = inputFrame.mDepthMapStride = width;

    std::vector<uint8_t> depthPhotoBuffer(inputFrame.mMaxJpegSize);

    size_t actualDepthPhotoSize = 0;