// Copyright 2016 The PDFium Authors. All rights reserved.

// Use of this source code is governed by a BSD-style license that can be

// found in the LICENSE file.

#include <stdint.h>

#include "lcms2.h"

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

  cmsHPROFILE srcProfile = cmsOpenProfileFromMem(data, size);

  if (!srcProfile) return 0;

  cmsHPROFILE dstProfile = cmsCreate_sRGBProfile();

  if (!dstProfile) {

    cmsCloseProfile(srcProfile);

    return 0;

  }

  cmsColorSpaceSignature srcCS = cmsGetColorSpace(srcProfile);

  cmsUInt32Number nSrcComponents = cmsChannelsOf(srcCS);

  cmsUInt32Number srcFormat;

  if (srcCS == cmsSigLabData) {

    srcFormat =

        COLORSPACE_SH(PT_Lab) | CHANNELS_SH(nSrcComponents) | BYTES_SH(0);

  } else {

    srcFormat =

        COLORSPACE_SH(PT_ANY) | CHANNELS_SH(nSrcComponents) | BYTES_SH(1);

  }

  cmsUInt32Number intent = 0;

  cmsUInt32Number flags = 0;

  cmsHTRANSFORM hTransform = cmsCreateTransform(

      srcProfile, srcFormat, dstProfile, TYPE_BGR_8, intent, flags);

  cmsCloseProfile(srcProfile);

  cmsCloseProfile(dstProfile);

  if (!hTransform) return 0;

  uint8_t output[4];

  if (T_BYTES(srcFormat) == 0) {  // 0 means double

    double input[nSrcComponents];

    for (uint32_t i = 0; i < nSrcComponents; i++) input[i] = 0.5f;

    cmsDoTransform(hTransform, input, output, 1);

  } else {

    uint8_t input[nSrcComponents];

    for (uint32_t i = 0; i < nSrcComponents; i++) input[i] = 128;

    cmsDoTransform(hTransform, input, output, 1);

  }

  cmsDeleteTransform(hTransform);

  return 0;

}