text: // Copyright 2013 Google Inc. All Rights Reserved.
  //
  // Use of this source code is governed by a BSD-style license
  // that can be found in the COPYING file in the root of the source
  // tree. An additional intellectual property rights grant can be found
  // in the file PATENTS. All contributing project authors may
  // be found in the AUTHORS file in the root of the source tree.
  // -----------------------------------------------------------------------------
  //
  // Alpha plane de-quantization utility
  //
  // Author:  Vikas Arora (vikasa@google.com)
  
  #ifndef WEBP_UTILS_QUANT_LEVELS_DEC_H_
  #define WEBP_UTILS_QUANT_LEVELS_DEC_H_
  
  #include "webp/types.h"
  
  #if defined(__cplusplus) || defined(c_plusplus)
  extern "C" {
  #endif
  
  // Apply post-processing to input 'data' of size 'width'x'height' assuming
  // that the source was quantized to a reduced number of levels.
  // Returns false in case of error (data is NULL, invalid parameters, ...).
  int DequantizeLevels(uint8_t* const data, int width, int height);
  
  #if defined(__cplusplus) || defined(c_plusplus)
  }    // extern "C"
  #endif
  
  #endif  /* WEBP_UTILS_QUANT_LEVELS_DEC_H_ */
  