mirror of
https://github.com/rn10950/RetroZilla.git
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94 lines
3.2 KiB
C++
94 lines
3.2 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is JPEG Encoding code
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*
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* The Initial Developer of the Original Code is
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* Google Inc.
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* Portions created by the Initial Developer are Copyright (C) 2005
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Brett Wilson <brettw@gmail.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "imgIEncoder.h"
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#ifdef MOZILLA_1_8_BRANCH
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#define imgIEncoder imgIEncoder_MOZILLA_1_8_BRANCH
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#define NS_DECL_IMGIENCODER NS_DECL_IMGIENCODER_MOZILLA_1_8_BRANCH
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#endif
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// needed for JPEG library
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#include <stdio.h>
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extern "C" {
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#include "jpeglib.h"
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}
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#define NS_JPEGENCODER_CID \
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{ /* ac2bb8fe-eeeb-4572-b40f-be03932b56e0 */ \
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0xac2bb8fe, \
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0xeeeb, \
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0x4572, \
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{0xb4, 0x0f, 0xbe, 0x03, 0x93, 0x2b, 0x56, 0xe0} \
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}
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// Provides JPEG encoding functionality. Use InitFromData() to do the
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// encoding. See that function definition for encoding options.
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class nsJPEGEncoder : public imgIEncoder
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{
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public:
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NS_DECL_ISUPPORTS
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NS_DECL_IMGIENCODER
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NS_DECL_NSIINPUTSTREAM
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nsJPEGEncoder();
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private:
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~nsJPEGEncoder();
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protected:
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void ConvertHostARGBRow(const PRUint8* aSrc, PRUint8* aDest,
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PRUint32 aPixelWidth);
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void StripAlpha(const PRUint8* aSrc, PRUint8* aDest, PRUint32 aPixelWidth);
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static void initDestination(jpeg_compress_struct* cinfo);
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static boolean emptyOutputBuffer(jpeg_compress_struct* cinfo);
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static void termDestination(jpeg_compress_struct* cinfo);
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static void errorExit(jpeg_common_struct* cinfo);
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// image buffer
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PRUint8* mImageBuffer;
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PRUint32 mImageBufferSize;
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PRUint32 mImageBufferUsed;
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PRUint32 mImageBufferReadPoint;
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};
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