third_party/libwebp/utils/quant_levels_dec.c

   1 // Copyright 2013 Google Inc. All Rights Reserved.
   2 //
   3 // Use of this source code is governed by a BSD-style license
   4 // that can be found in the COPYING file in the root of the source
   5 // tree. An additional intellectual property rights grant can be found
   6 // in the file PATENTS. All contributing project authors may
   7 // be found in the AUTHORS file in the root of the source tree.
   8 // -----------------------------------------------------------------------------
   9 //
  10 // TODO(skal): implement gradient smoothing.
  11 //
  12 // Author: Skal (pascal.massimino@gmail.com)
  13
  14 #include "./quant_levels_dec.h"
  15
  16 int DequantizeLevels(uint8_t* const data, int width, int height,
  17                      int row, int num_rows) {
  18   if (data == NULL || width <= 0 || height <= 0 || row < 0 || num_rows < 0 ||
  19       row + num_rows > height) {
  20     return 0;
  21   }
  22   return 1;
  23 }
  24