libwebp-0.6.0-rc1

third_party/libwebp/utils/quant_levels_dec.h

-// 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"
-
-#ifdef __cplusplus
-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. 'stride' is in bytes.
-// Strength is in [0..100] and controls the amount of dithering applied.
-// Returns false in case of error (data is NULL, invalid parameters,
-// malloc failure, ...).
-int WebPDequantizeLevels(uint8_t* const data, int width, int height, int stride,
-                         int strength);
-
-#ifdef __cplusplus
-}    // extern "C"
-#endif
-
-#endif  /* WEBP_UTILS_QUANT_LEVELS_DEC_H_ */