| // Copyright 2012 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. |
| // ----------------------------------------------------------------------------- |
| // |
| // PNG decode. |
| |
| #ifndef WEBP_IMAGEIO_PNGDEC_H_ |
| #define WEBP_IMAGEIO_PNGDEC_H_ |
| |
| #include "webp/types.h" |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| struct Metadata; |
| struct WebPPicture; |
| |
| // Reads a PNG from 'data', returning the decoded output in 'pic'. |
| // Output is RGBA or YUVA, depending on pic->use_argb value. |
| // If 'keep_alpha' is true and the PNG has an alpha channel, the output is RGBA |
| // or YUVA. Otherwise, alpha channel is dropped and output is RGB or YUV. |
| // Returns true on success. |
| int ReadPNG(const uint8_t* const data, size_t data_size, |
| struct WebPPicture* const pic, |
| int keep_alpha, struct Metadata* const metadata); |
| |
| #ifdef __cplusplus |
| } // extern "C" |
| #endif |
| |
| #endif // WEBP_IMAGEIO_PNGDEC_H_ |
