97 lines
3.4 KiB
Java
97 lines
3.4 KiB
Java
/*
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* Copyright (C)2011 D. R. Commander. All Rights Reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* - Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* - Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* - Neither the name of the libjpeg-turbo Project nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS",
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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package org.libjpegturbo.turbojpeg;
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public class TJCompressor {
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public TJCompressor() throws Exception {
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init();
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}
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public TJCompressor(byte [] buf, int width, int pitch, int height,
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int pixelFormat) throws Exception {
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setBitmapBuffer(buf, width, pitch, height, pixelFormat);
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}
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public void setBitmapBuffer(byte [] buf, int width, int pitch, int height,
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int pixelFormat) throws Exception {
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if(handle == 0) init();
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if(buf == null || width < 1 || height < 1 || pitch < 0 || pixelFormat < 0
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|| pixelFormat >= TJ.NUMPIXFORMATS)
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throw new Exception("Invalid argument in setBitmapBuffer()");
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bitmapBuf = buf;
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bitmapWidth = width;
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if(pitch == 0) bitmapPitch = width * TJ.getPixelSize(pixelFormat);
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else bitmapPitch = pitch;
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bitmapHeight = height;
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bitmapPixelFormat = pixelFormat;
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}
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public long compress(byte [] dstBuf, int jpegSubsamp, int jpegQual,
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int flags) throws Exception {
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return compress(bitmapBuf, bitmapWidth, bitmapPitch, bitmapHeight,
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TJ.getPixelSize(bitmapPixelFormat), dstBuf, jpegSubsamp, jpegQual,
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flags | TJ.getFlags(bitmapPixelFormat));
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}
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public void close() throws Exception {
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destroy();
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}
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protected void finalize() throws Throwable {
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try {
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close();
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} catch(Exception e) {
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}
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finally {
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super.finalize();
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}
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};
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private native void init() throws Exception;
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private native void destroy() throws Exception;
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// JPEG size in bytes is returned
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private native long compress(byte [] srcBuf, int width, int pitch,
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int height, int pixelSize, byte [] dstbuf, int jpegSubsamp, int jpegQual,
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int flags) throws Exception;
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static {
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System.loadLibrary("turbojpeg");
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}
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private long handle = 0;
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private byte [] bitmapBuf = null;
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private int bitmapWidth = 0;
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private int bitmapHeight = 0;
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private int bitmapPitch = 0;
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private int bitmapPixelFormat = -1;
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};
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