mirror of
https://github.com/rn10950/RetroZilla.git
synced 2024-11-10 01:40:17 +01:00
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 -*-
|
|
* ***** BEGIN LICENSE BLOCK *****
|
|
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
|
*
|
|
* The contents of this file are subject to the Mozilla Public License Version
|
|
* 1.1 (the "License"); you may not use this file except in compliance with
|
|
* the License. You may obtain a copy of the License at
|
|
* http://www.mozilla.org/MPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
|
* for the specific language governing rights and limitations under the
|
|
* License.
|
|
*
|
|
* The Original Code is JPEG Encoding code
|
|
*
|
|
* The Initial Developer of the Original Code is
|
|
* Google Inc.
|
|
* Portions created by the Initial Developer are Copyright (C) 2005
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
* Brett Wilson <brettw@gmail.com>
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either the GNU General Public License Version 2 or later (the "GPL"), or
|
|
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
|
* in which case the provisions of the GPL or the LGPL are applicable instead
|
|
* of those above. If you wish to allow use of your version of this file only
|
|
* under the terms of either the GPL or the LGPL, and not to allow others to
|
|
* use your version of this file under the terms of the MPL, indicate your
|
|
* decision by deleting the provisions above and replace them with the notice
|
|
* and other provisions required by the GPL or the LGPL. If you do not delete
|
|
* the provisions above, a recipient may use your version of this file under
|
|
* the terms of any one of the MPL, the GPL or the LGPL.
|
|
*
|
|
* ***** END LICENSE BLOCK ***** */
|
|
|
|
#include "imgIEncoder.h"
|
|
#ifdef MOZILLA_1_8_BRANCH
|
|
#define imgIEncoder imgIEncoder_MOZILLA_1_8_BRANCH
|
|
#define NS_DECL_IMGIENCODER NS_DECL_IMGIENCODER_MOZILLA_1_8_BRANCH
|
|
#endif
|
|
|
|
// needed for JPEG library
|
|
#include <stdio.h>
|
|
|
|
extern "C" {
|
|
#include "jpeglib.h"
|
|
}
|
|
|
|
#define NS_JPEGENCODER_CID \
|
|
{ /* ac2bb8fe-eeeb-4572-b40f-be03932b56e0 */ \
|
|
0xac2bb8fe, \
|
|
0xeeeb, \
|
|
0x4572, \
|
|
{0xb4, 0x0f, 0xbe, 0x03, 0x93, 0x2b, 0x56, 0xe0} \
|
|
}
|
|
|
|
// Provides JPEG encoding functionality. Use InitFromData() to do the
|
|
// encoding. See that function definition for encoding options.
|
|
|
|
class nsJPEGEncoder : public imgIEncoder
|
|
{
|
|
public:
|
|
NS_DECL_ISUPPORTS
|
|
NS_DECL_IMGIENCODER
|
|
NS_DECL_NSIINPUTSTREAM
|
|
|
|
nsJPEGEncoder();
|
|
|
|
private:
|
|
~nsJPEGEncoder();
|
|
|
|
protected:
|
|
|
|
void ConvertHostARGBRow(const PRUint8* aSrc, PRUint8* aDest,
|
|
PRUint32 aPixelWidth);
|
|
void StripAlpha(const PRUint8* aSrc, PRUint8* aDest, PRUint32 aPixelWidth);
|
|
|
|
static void initDestination(jpeg_compress_struct* cinfo);
|
|
static boolean emptyOutputBuffer(jpeg_compress_struct* cinfo);
|
|
static void termDestination(jpeg_compress_struct* cinfo);
|
|
|
|
static void errorExit(jpeg_common_struct* cinfo);
|
|
|
|
// image buffer
|
|
PRUint8* mImageBuffer;
|
|
PRUint32 mImageBufferSize;
|
|
PRUint32 mImageBufferUsed;
|
|
|
|
PRUint32 mImageBufferReadPoint;
|
|
};
|