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Diffstat (limited to 'drivers/webp/utils/alpha_processing.h')
| -rw-r--r-- | drivers/webp/utils/alpha_processing.h | 46 |
1 files changed, 0 insertions, 46 deletions
diff --git a/drivers/webp/utils/alpha_processing.h b/drivers/webp/utils/alpha_processing.h deleted file mode 100644 index 80e1ae45dd..0000000000 --- a/drivers/webp/utils/alpha_processing.h +++ /dev/null @@ -1,46 +0,0 @@ -// 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. -// ----------------------------------------------------------------------------- -// -// Utilities for processing transparent channel. -// -// Author: Skal (pascal.massimino@gmail.com) - -#ifndef WEBP_UTILS_ALPHA_PROCESSING_H_ -#define WEBP_UTILS_ALPHA_PROCESSING_H_ - -#include "../webp/types.h" - -#ifdef __cplusplus -extern "C" { -#endif - -// Pre-Multiply operation transforms x into x * A / 255 (where x=Y,R,G or B). -// Un-Multiply operation transforms x into x * 255 / A. - -// Pre-Multiply or Un-Multiply (if 'inverse' is true) argb values in a row. -void WebPMultARGBRow(uint32_t* const ptr, int width, int inverse); - -// Same a WebPMultARGBRow(), but for several rows. -void WebPMultARGBRows(uint8_t* ptr, int stride, int width, int num_rows, - int inverse); - -// Same for a row of single values, with side alpha values. -void WebPMultRow(uint8_t* const ptr, const uint8_t* const alpha, - int width, int inverse); - -// Same a WebPMultRow(), but for several 'num_rows' rows. -void WebPMultRows(uint8_t* ptr, int stride, - const uint8_t* alpha, int alpha_stride, - int width, int num_rows, int inverse); - -#ifdef __cplusplus -} // extern "C" -#endif - -#endif // WEBP_UTILS_ALPHA_PROCESSING_H_ |