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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 "include/codec/SkCodec.h"
- #include "src/codec/SkCodecPriv.h"
- #include <stdio.h>
- #include "src/codec/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 skjpeg_error_mgr in order to set an error return jmp_buf
- */
- skjpeg_error_mgr* errorMgr() { return &fErrorMgr; }
- /*
- * Get function for the decompress info struct
- */
- jpeg_decompress_struct* dinfo() { return &fDInfo; }
- private:
- jpeg_decompress_struct fDInfo;
- skjpeg_source_mgr fSrcMgr;
- skjpeg_error_mgr fErrorMgr;
- jpeg_progress_mgr fProgressMgr;
- bool fInit;
- };
- #endif
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