38 lines
1.2 KiB
C
38 lines
1.2 KiB
C
|
// 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_
|