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/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkJpegDecoderMgr_DEFINED
#define SkJpegDecoderMgr_DEFINED
#include "SkCodec.h"
#include "SkCodecPriv.h"
#include <stdio.h>
#include "SkJpegUtility.h"
extern "C" {
#include "jpeglib.h"
}
class JpegDecoderMgr : SkNoncopyable {
public:
/*
* Print a useful error message and return false
*/
bool returnFalse(const char caller[]);
/*
* Print a useful error message and return a decode failure
*/
SkCodec::Result returnFailure(const char caller[], SkCodec::Result result);
/*
* Create the decode manager
* Does not take ownership of stream
*/
JpegDecoderMgr(SkStream* stream);
/*
* Initialize decompress struct
* Initialize the source manager
*/
void init();
/*
* Returns true if it successfully sets outColor to the encoded color,
* and false otherwise.
*/
bool getEncodedColor(SkEncodedInfo::Color* outColor);
/*
* Free memory used by the decode manager
*/
~JpegDecoderMgr();
/*
* Get the jump buffer in order to set an error return point
*/
jmp_buf& getJmpBuf();
/*
* Get function for the decompress info struct
*/
jpeg_decompress_struct* dinfo();
private:
jpeg_decompress_struct fDInfo;
skjpeg_source_mgr fSrcMgr;
skjpeg_error_mgr fErrorMgr;
jpeg_progress_mgr fProgressMgr;
bool fInit;
};
#endif
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