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8c296bbcd4
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find . ! -wholename "*nsprpub*" \
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! -name nsXPCOMCID.h \
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\( -iname "*.cpp" \
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-o -iname "*.c" \
-o -iname "*.cc" \
-o -iname "*.idl" \
-o -iname "*.ipdl" \
-o -iname "*.ipdlh" \
-o -iname "*.mm" \) | \
xargs -n 1 sed -i -e "s/\b$1\b/$2/g"
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101 lines
2.6 KiB
C++
101 lines
2.6 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsJPEGDecoder_h__
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#define nsJPEGDecoder_h__
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#include "RasterImage.h"
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/* On Windows systems, RasterImage.h brings in 'windows.h', which defines INT32.
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* But the jpeg decoder has its own definition of INT32. To avoid build issues,
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* we need to undefine the version from 'windows.h'. */
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#undef INT32
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#include "Decoder.h"
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#include "nsAutoPtr.h"
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#include "imgIDecoderObserver.h"
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#include "nsIInputStream.h"
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#include "nsIPipe.h"
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#include "qcms.h"
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extern "C" {
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#include "jpeglib.h"
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}
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#include <setjmp.h>
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namespace mozilla {
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namespace image {
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typedef struct {
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struct jpeg_error_mgr pub; /* "public" fields for IJG library*/
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jmp_buf setjmp_buffer; /* For handling catastropic errors */
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} decoder_error_mgr;
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typedef enum {
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JPEG_HEADER, /* Reading JFIF headers */
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JPEG_START_DECOMPRESS,
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JPEG_DECOMPRESS_PROGRESSIVE, /* Output progressive pixels */
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JPEG_DECOMPRESS_SEQUENTIAL, /* Output sequential pixels */
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JPEG_DONE,
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JPEG_SINK_NON_JPEG_TRAILER, /* Some image files have a */
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/* non-JPEG trailer */
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JPEG_ERROR
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} jstate;
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class RasterImage;
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class nsJPEGDecoder : public Decoder
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{
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public:
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nsJPEGDecoder(RasterImage &aImage, imgIDecoderObserver* aObserver);
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virtual ~nsJPEGDecoder();
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virtual void InitInternal();
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virtual void WriteInternal(const char* aBuffer, uint32_t aCount);
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virtual void FinishInternal();
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virtual Telemetry::ID SpeedHistogram();
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void NotifyDone();
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protected:
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void OutputScanlines(bool* suspend);
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public:
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uint8_t *mImageData;
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struct jpeg_decompress_struct mInfo;
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struct jpeg_source_mgr mSourceMgr;
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decoder_error_mgr mErr;
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jstate mState;
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uint32_t mBytesToSkip;
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const JOCTET *mSegment; // The current segment we are decoding from
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uint32_t mSegmentLen; // amount of data in mSegment
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JOCTET *mBackBuffer;
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uint32_t mBackBufferLen; // Offset of end of active backtrack data
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uint32_t mBackBufferSize; // size in bytes what mBackBuffer was created with
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uint32_t mBackBufferUnreadLen; // amount of data currently in mBackBuffer
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JOCTET *mProfile;
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uint32_t mProfileLength;
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qcms_profile *mInProfile;
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qcms_transform *mTransform;
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bool mReading;
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uint32_t mCMSMode;
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};
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} // namespace image
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} // namespace mozilla
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#endif // nsJPEGDecoder_h__
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