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