mirror of
https://github.com/haraldk/TwelveMonkeys.git
synced 2025-08-03 03:25:28 -04:00
Code clean-up, no functional changes.
This commit is contained in:
Harald Kuhr
parent
7435c12a80
commit
6ba32b657a
@ -36,34 +36,36 @@ import java.util.Random;
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* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
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* @author last modified by $Author: haku $
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*
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* @version $Id: //depot/branches/personal/haraldk/twelvemonkeys/release-2/twelvemonkeys-core/src/main/java/com/twelvemonkeys/image/DiffusionDither.java#1 $
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* @version $Id: DiffusionDither.java#1 $
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*
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*/
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public class DiffusionDither implements BufferedImageOp, RasterOp {
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protected IndexColorModel indexColorModel = null;
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private boolean alternateScans = true;
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private static final int FS_SCALE = 1 << 8;
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private static final Random RANDOM = new Random();
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protected final IndexColorModel indexColorModel;
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private boolean alternateScans = true;
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/**
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* Creates a {@code DiffusionDither}, using the given
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* {@code IndexColorModel} for dithering into.
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*
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* @param pICM an IndexColorModel.
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*/
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public DiffusionDither(IndexColorModel pICM) {
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// Store colormodel
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public DiffusionDither(final IndexColorModel pICM) {
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// Store color model
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indexColorModel = pICM;
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}
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/**
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* Creates a {@code DiffusionDither}, with no fixed
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* {@code IndexColorModel}. The colormodel will be generated for each
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* filtering, unless the dest image allready has an
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* {@code IndexColorModel}. The color model will be generated for each
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* filtering, unless the destination image already has an
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* {@code IndexColorModel}.
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*/
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public DiffusionDither() {
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this(null);
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}
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/**
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@ -86,8 +88,7 @@ public class DiffusionDither implements BufferedImageOp, RasterOp {
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* @throws ImageFilterException if {@code pDestCM} is not {@code null} or
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* an instance of {@code IndexColorModel}.
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*/
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public final BufferedImage createCompatibleDestImage(BufferedImage pSource,
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ColorModel pDestCM) {
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public final BufferedImage createCompatibleDestImage(BufferedImage pSource, ColorModel pDestCM) {
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if (pDestCM == null) {
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return new BufferedImage(pSource.getWidth(), pSource.getHeight(),
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BufferedImage.TYPE_BYTE_INDEXED,
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@ -107,7 +108,7 @@ public class DiffusionDither implements BufferedImageOp, RasterOp {
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* Creates a compatible {@code Raster} to dither into.
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* Only {@code IndexColorModel} allowed.
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*
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* @param pSrc
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* @param pSrc the source raster
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*
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* @return a {@code WritableRaster}
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*/
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@ -115,14 +116,16 @@ public class DiffusionDither implements BufferedImageOp, RasterOp {
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return createCompatibleDestRaster(pSrc, getICM(pSrc));
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}
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public final WritableRaster createCompatibleDestRaster(Raster pSrc,
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IndexColorModel pIndexColorModel) {
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return pIndexColorModel.createCompatibleWritableRaster(pSrc.getWidth(), pSrc.getHeight());
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/*
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return new BufferedImage(pSrc.getWidth(), pSrc.getHeight(),
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BufferedImage.TYPE_BYTE_INDEXED,
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pIndexColorModel).getRaster();
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/**
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* Creates a compatible {@code Raster} to dither into.
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*
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* @param pSrc the source raster.
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* @param pIndexColorModel the index color model used to create a {@code Raster}.
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*
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* @return a {@code WritableRaster}
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*/
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public final WritableRaster createCompatibleDestRaster(Raster pSrc, IndexColorModel pIndexColorModel) {
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return pIndexColorModel.createCompatibleWritableRaster(pSrc.getWidth(), pSrc.getHeight());
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}
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@ -221,8 +224,7 @@ public class DiffusionDither implements BufferedImageOp, RasterOp {
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* @return the destination image, or a new image, if {@code pDest} was
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* {@code null}.
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*/
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public final BufferedImage filter(BufferedImage pSource,
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BufferedImage pDest) {
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public final BufferedImage filter(BufferedImage pSource, BufferedImage pDest) {
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// Create destination image, if none provided
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if (pDest == null) {
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pDest = createCompatibleDestImage(pSource, getICM(pSource));
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@ -265,8 +267,6 @@ public class DiffusionDither implements BufferedImageOp, RasterOp {
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return IndexImage.getIndexColorModel(image, 256, IndexImage.TRANSPARENCY_BITMASK);
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}
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/**
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* Performs a single-input/single-output dither operation, applying basic
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* Floyd-Steinberg error-diffusion to the image.
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@ -278,8 +278,7 @@ public class DiffusionDither implements BufferedImageOp, RasterOp {
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* @return the destination raster, or a new raster, if {@code pDest} was
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* {@code null}.
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*/
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public final WritableRaster filter(final Raster pSource, WritableRaster pDest,
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IndexColorModel pColorModel) {
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public final WritableRaster filter(final Raster pSource, WritableRaster pDest, IndexColorModel pColorModel) {
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int width = pSource.getWidth();
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int height = pSource.getHeight();
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@ -460,6 +459,7 @@ public class DiffusionDither implements BufferedImageOp, RasterOp {
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forward = !forward;
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}
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}
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return pDest;
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}
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}
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@ -89,6 +89,8 @@ import java.awt.image.BufferedImage;
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import java.awt.image.ColorModel;
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import java.awt.image.IndexColorModel;
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import java.awt.image.RenderedImage;
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import java.io.File;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.Iterator;
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import java.util.List;
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@ -127,7 +129,7 @@ import java.util.List;
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* @author <A href="mailto:deweese@apache.org">Thomas DeWeese</A>
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* @author <A href="mailto:jun@oop-reserch.com">Jun Inamori</A>
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* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
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* @version $Id: //depot/branches/personal/haraldk/twelvemonkeys/release-2/twelvemonkeys-core/src/main/java/com/twelvemonkeys/image/IndexImage.java#1 $
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* @version $Id: IndexImage.java#1 $
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* @see DiffusionDither
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*/
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class IndexImage {
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@ -237,19 +239,22 @@ class IndexImage {
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if (this.val != val) {
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return false;
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}
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count++;
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return true;
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}
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}
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/**
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* Used to define a cube of the colorspace. The cube can be split
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* approximagely in half to generate two cubes.
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* Used to define a cube of the color space. The cube can be split
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* approximately in half to generate two cubes.
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*/
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private static class Cube {
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int[] min = {0, 0, 0}, max = {255, 255, 255};
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int[] min = {0, 0, 0};
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int[] max = {255, 255, 255};
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boolean done = false;
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List[] colors = null;
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List<Counter>[] colors = null;
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int count = 0;
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static final int RED = 0;
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static final int GRN = 1;
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@ -261,7 +266,7 @@ class IndexImage {
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* @param colors contains the 3D color histogram to be subdivided
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* @param count the total number of pixels in the 3D histogram.
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*/
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public Cube(List[] colors, int count) {
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public Cube(List<Counter>[] colors, int count) {
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this.colors = colors;
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this.count = count;
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}
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@ -312,20 +317,27 @@ class IndexImage {
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c0 = RED;
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c1 = GRN;
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}
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Cube ret;
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ret = splitChannel(splitChannel, c0, c1);
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if (ret != null) {
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return ret;
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}
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ret = splitChannel(c0, splitChannel, c1);
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if (ret != null) {
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return ret;
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}
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ret = splitChannel(c1, splitChannel, c0);
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if (ret != null) {
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return ret;
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}
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done = true;
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return null;
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@ -381,16 +393,13 @@ class IndexImage {
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for (int k = minIdx[c1]; k <= maxIdx[c1]; k++) {
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int idx = idx2 | (k << c1Sh4);
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List v = colors[idx];
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List<Counter> v = colors[idx];
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if (v == null) {
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continue;
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}
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Iterator itr = v.iterator();
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Counter c;
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while (itr.hasNext()) {
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c = (Counter) itr.next();
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for (Counter c : v) {
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val = c.val;
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vals[0] = (val & 0xFF0000) >> 16;
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vals[1] = (val & 0xFF00) >> 8;
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@ -425,7 +434,6 @@ class IndexImage {
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int c = counts[i];
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if (c == 0) {
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// No counts below this so move up bottom of cube.
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if ((tcount == 0) && (i < max[splitChannel])) {
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this.min[splitChannel] = i + 1;
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@ -438,10 +446,8 @@ class IndexImage {
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continue;
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}
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if ((half - tcount) <= ((tcount + c) - half)) {
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// Then lastAdd is a better top idx for this then i.
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if (lastAdd == -1) {
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// No lower place to break.
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if (c == this.count) {
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@ -465,13 +471,11 @@ class IndexImage {
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else {
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if (i == this.max[splitChannel]) {
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if (c == this.count) {
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// would move min up but that should
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// have happened already.
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return null;// no split to make.
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}
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else {
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// Would like to break between i and i+1
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// but no i+1 so use lastAdd and i;
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splitLo = lastAdd;
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@ -503,6 +507,7 @@ class IndexImage {
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ret.max[c0] = this.max[c0];
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ret.min[c1] = this.min[c1];
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ret.max[c1] = this.max[c1];
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return ret;
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}
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@ -515,6 +520,7 @@ class IndexImage {
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if (this.count == 0) {
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return 0;
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}
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float red = 0, grn = 0, blu = 0;
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int minR = min[0], minG = min[1], minB = min[2];
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int maxR = max[0], maxG = max[1], maxB = max[2];
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@ -531,20 +537,18 @@ class IndexImage {
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for (int k = minIdx[2]; k <= maxIdx[2]; k++) {
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int idx = idx2 | k;
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List v = colors[idx];
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List<Counter> v = colors[idx];
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if (v == null) {
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continue;
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}
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Iterator itr = v.iterator();
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Counter c;
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while (itr.hasNext()) {
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c = (Counter) itr.next();
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for (Counter c : v) {
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val = c.val;
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ired = (val & 0xFF0000) >> 16;
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igrn = (val & 0x00FF00) >> 8;
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iblu = (val & 0x0000FF);
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if (((ired >= minR) && (ired <= maxR)) && ((igrn >= minG) && (igrn <= maxG)) && ((iblu >= minB) && (iblu <= maxB))) {
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weight = (c.count / (float) this.count);
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red += ((float) ired) * weight;
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@ -579,10 +583,7 @@ class IndexImage {
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* This version will be removed in a later version of the API.
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*/
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public static IndexColorModel getIndexColorModel(Image pImage, int pNumberOfColors, boolean pFast) {
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return getIndexColorModel(pImage, pNumberOfColors, pFast
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? COLOR_SELECTION_FAST
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: COLOR_SELECTION_QUALITY);
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return getIndexColorModel(pImage, pNumberOfColors, pFast ? COLOR_SELECTION_FAST : COLOR_SELECTION_QUALITY);
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}
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/**
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@ -636,17 +637,12 @@ class IndexImage {
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// We now have at least a buffered image, create model from it
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if (icm == null) {
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icm = createIndexColorModel(ImageUtil.toBuffered(image), pNumberOfColors, pHints);
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//System.out.println("IndexColorModel created from colors.");
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}
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else if (!(icm instanceof InverseColorMapIndexColorModel)) {
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// If possible, use faster code
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//System.out.println("Wrappimg IndexColorModel in InverseColorMapIndexColorModel");
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icm = new InverseColorMapIndexColorModel(icm);
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}
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//else {
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//System.out.println("Allredy InverseColorMapIndexColorModel");
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//}
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return icm;
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}
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@ -674,7 +670,8 @@ class IndexImage {
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int height = pImage.getHeight();
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// Using 4 bits from R, G & B.
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List[] colors = new List[1 << 12];// [4096]
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@SuppressWarnings("unchecked")
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List<Counter>[] colors = new List[1 << 12];// [4096]
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// Speedup, doesn't decrease image quality much
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int step = 1;
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@ -739,13 +736,16 @@ class IndexImage {
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while (numberOfCubes < pNumberOfColors) {
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while (cubes[fCube].isDone()) {
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fCube++;
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if (fCube == numberOfCubes) {
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break;
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}
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}
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if (fCube == numberOfCubes) {
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break;
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}
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Cube cube = cubes[fCube];
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Cube newCube = cube.split();
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@ -756,6 +756,7 @@ class IndexImage {
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cube = newCube;
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newCube = tmp;
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}
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int j = fCube;
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int count = cube.count;
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@ -765,17 +766,19 @@ class IndexImage {
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}
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cubes[j++] = cubes[i];
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}
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cubes[j++] = cube;
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count = newCube.count;
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while (j < numberOfCubes) {
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if (cubes[j].count < count) {
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break;
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}
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j++;
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}
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for (int i = numberOfCubes; i > j; i--) {
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cubes[i] = cubes[i - 1];
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}
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System.arraycopy(cubes, j, cubes, j + 1, numberOfCubes - j);
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cubes[j/*++*/] = newCube;
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numberOfCubes++;
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}
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@ -803,15 +806,13 @@ class IndexImage {
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// - transparency added to all totally black colors?
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int numOfBits = 8;
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// -- haraldK, 20021024, as suggested by Thomas E Deweese
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// -- haraldK, 20021024, as suggested by Thomas E. Deweese
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// plus adding a transparent pixel
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IndexColorModel icm;
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if (useTransparency) {
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//icm = new IndexColorModel(numOfBits, r.length, r, g, b, r.length - 1);
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icm = new InverseColorMapIndexColorModel(numOfBits, r.length, r, g, b, r.length - 1);
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}
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else {
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//icm = new IndexColorModel(numOfBits, r.length, r, g, b);
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icm = new InverseColorMapIndexColorModel(numOfBits, r.length, r, g, b);
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}
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return icm;
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@ -925,7 +926,7 @@ class IndexImage {
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* @see IndexColorModel
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*/
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public static BufferedImage getIndexedImage(BufferedImage pImage, int pNumberOfColors, Color pMatte, int pHints) {
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// NOTE: We need to apply matte before creating colormodel, otherwise we
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// NOTE: We need to apply matte before creating color model, otherwise we
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// won't have colors for potential faded transitions
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IndexColorModel icm;
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@ -985,15 +986,16 @@ class IndexImage {
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final int width = pImage.getWidth();
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final int height = pImage.getHeight();
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// Support transparancy?
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// Support transparency?
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boolean transparency = isTransparent(pHints) && (pImage.getColorModel().getTransparency() != Transparency.OPAQUE) && (pColors.getTransparency() != Transparency.OPAQUE);
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// Create image with solid background
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BufferedImage solid = pImage;
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if (pMatte != null) {// transparency doesn't really matter
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if (pMatte != null) { // transparency doesn't really matter
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solid = createSolid(pImage, pMatte);
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}
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BufferedImage indexed;
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// Support TYPE_BYTE_BINARY, but only for 2 bit images, as the default
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@ -1044,12 +1046,12 @@ class IndexImage {
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finally {
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g2d.dispose();
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}
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break;
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}
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// Transparency support, this approach seems lame, but it's the only
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// solution I've found until now (that actually works).
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// Got anything to do with isPremultiplied? Hmm...
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if (transparency) {
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// Re-apply the alpha-channel of the original image
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applyAlpha(indexed, pImage);
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@ -1183,14 +1185,14 @@ class IndexImage {
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* @param pAlpha the image containing the alpha
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*/
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private static void applyAlpha(BufferedImage pImage, BufferedImage pAlpha) {
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// Apply alpha as transparancy, using threshold of 25%
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// Apply alpha as transparency, using threshold of 25%
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for (int y = 0; y < pAlpha.getHeight(); y++) {
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for (int x = 0; x < pAlpha.getWidth(); x++) {
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// Get alpha component of pixel, if less than 25% opaque
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// (0x40 = 64 => 25% of 256), the pixel will be transparent
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if (((pAlpha.getRGB(x, y) >> 24) & 0xFF) < 0x40) {
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pImage.setRGB(x, y, 0x00FFFFFF);// 100% transparent
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pImage.setRGB(x, y, 0x00FFFFFF); // 100% transparent
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}
|
||||
}
|
||||
}
|
||||
@ -1200,7 +1202,6 @@ class IndexImage {
|
||||
* This class is also a command-line utility.
|
||||
*/
|
||||
public static void main(String pArgs[]) {
|
||||
|
||||
// Defaults
|
||||
int argIdx = 0;
|
||||
int speedTest = -1;
|
||||
@ -1237,14 +1238,13 @@ class IndexImage {
|
||||
speedTest = 10;
|
||||
}
|
||||
}
|
||||
else
|
||||
if ((pArgs[argIdx].charAt(1) == 'w') || pArgs[argIdx].equals("--overwrite")) {
|
||||
else if ((pArgs[argIdx].charAt(1) == 'w') || pArgs[argIdx].equals("--overwrite")) {
|
||||
overWrite = true;
|
||||
argIdx++;
|
||||
}
|
||||
else
|
||||
if ((pArgs[argIdx].charAt(1) == 'c') || pArgs[argIdx].equals("--colors")) {
|
||||
else if ((pArgs[argIdx].charAt(1) == 'c') || pArgs[argIdx].equals("--colors")) {
|
||||
argIdx++;
|
||||
|
||||
try {
|
||||
numColors = Integer.parseInt(pArgs[argIdx++]);
|
||||
}
|
||||
@ -1253,34 +1253,28 @@ class IndexImage {
|
||||
break;
|
||||
}
|
||||
}
|
||||
else
|
||||
if ((pArgs[argIdx].charAt(1) == 'g') || pArgs[argIdx].equals("--grayscale")) {
|
||||
else if ((pArgs[argIdx].charAt(1) == 'g') || pArgs[argIdx].equals("--grayscale")) {
|
||||
argIdx++;
|
||||
gray = true;
|
||||
}
|
||||
else
|
||||
if ((pArgs[argIdx].charAt(1) == 'm') || pArgs[argIdx].equals("--monochrome")) {
|
||||
else if ((pArgs[argIdx].charAt(1) == 'm') || pArgs[argIdx].equals("--monochrome")) {
|
||||
argIdx++;
|
||||
numColors = 2;
|
||||
monochrome = true;
|
||||
}
|
||||
else
|
||||
if ((pArgs[argIdx].charAt(1) == 'd') || pArgs[argIdx].equals("--dither")) {
|
||||
else if ((pArgs[argIdx].charAt(1) == 'd') || pArgs[argIdx].equals("--dither")) {
|
||||
argIdx++;
|
||||
dither = pArgs[argIdx++];
|
||||
}
|
||||
else
|
||||
if ((pArgs[argIdx].charAt(1) == 'p') || pArgs[argIdx].equals("--palette")) {
|
||||
else if ((pArgs[argIdx].charAt(1) == 'p') || pArgs[argIdx].equals("--palette")) {
|
||||
argIdx++;
|
||||
paletteFileName = pArgs[argIdx++];
|
||||
}
|
||||
else
|
||||
if ((pArgs[argIdx].charAt(1) == 'q') || pArgs[argIdx].equals("--quality")) {
|
||||
else if ((pArgs[argIdx].charAt(1) == 'q') || pArgs[argIdx].equals("--quality")) {
|
||||
argIdx++;
|
||||
quality = pArgs[argIdx++];
|
||||
}
|
||||
else
|
||||
if ((pArgs[argIdx].charAt(1) == 'b') || pArgs[argIdx].equals("--bgcolor")) {
|
||||
else if ((pArgs[argIdx].charAt(1) == 'b') || pArgs[argIdx].equals("--bgcolor")) {
|
||||
argIdx++;
|
||||
try {
|
||||
background = StringUtil.toColor(pArgs[argIdx++]);
|
||||
@ -1290,18 +1284,15 @@ class IndexImage {
|
||||
break;
|
||||
}
|
||||
}
|
||||
else
|
||||
if ((pArgs[argIdx].charAt(1) == 't') || pArgs[argIdx].equals("--transparency")) {
|
||||
else if ((pArgs[argIdx].charAt(1) == 't') || pArgs[argIdx].equals("--transparency")) {
|
||||
argIdx++;
|
||||
transparency = true;
|
||||
}
|
||||
else
|
||||
if ((pArgs[argIdx].charAt(1) == 'f') || pArgs[argIdx].equals("--outputformat")) {
|
||||
else if ((pArgs[argIdx].charAt(1) == 'f') || pArgs[argIdx].equals("--outputformat")) {
|
||||
argIdx++;
|
||||
format = StringUtil.toLowerCase(pArgs[argIdx++]);
|
||||
}
|
||||
else
|
||||
if ((pArgs[argIdx].charAt(1) == 'h') || pArgs[argIdx].equals("--help")) {
|
||||
else if ((pArgs[argIdx].charAt(1) == 'h') || pArgs[argIdx].equals("--help")) {
|
||||
argIdx++;
|
||||
|
||||
// Setting errArgs to true, to print usage
|
||||
@ -1321,6 +1312,7 @@ class IndexImage {
|
||||
? ", "
|
||||
: "\n"));
|
||||
}
|
||||
|
||||
System.err.print("Output format names: ");
|
||||
String[] writers = ImageIO.getWriterFormatNames();
|
||||
|
||||
@ -1333,7 +1325,7 @@ class IndexImage {
|
||||
}
|
||||
|
||||
// Read in image
|
||||
java.io.File in = new java.io.File(pArgs[argIdx++]);
|
||||
File in = new File(pArgs[argIdx++]);
|
||||
|
||||
if (!in.exists()) {
|
||||
System.err.println("File \"" + in.getAbsolutePath() + "\" does not exist!");
|
||||
@ -1341,10 +1333,10 @@ class IndexImage {
|
||||
}
|
||||
|
||||
// Read palette if needed
|
||||
java.io.File paletteFile = null;
|
||||
File paletteFile = null;
|
||||
|
||||
if (paletteFileName != null) {
|
||||
paletteFile = new java.io.File(paletteFileName);
|
||||
paletteFile = new File(paletteFileName);
|
||||
if (!paletteFile.exists()) {
|
||||
System.err.println("File \"" + in.getAbsolutePath() + "\" does not exist!");
|
||||
System.exit(5);
|
||||
@ -1352,10 +1344,10 @@ class IndexImage {
|
||||
}
|
||||
|
||||
// Make sure we can write
|
||||
java.io.File out;
|
||||
File out;
|
||||
|
||||
if (argIdx < pArgs.length) {
|
||||
out = new java.io.File(pArgs[argIdx/*++*/]);
|
||||
out = new File(pArgs[argIdx/*++*/]);
|
||||
|
||||
// Get format from file extension
|
||||
if (format == null) {
|
||||
@ -1363,7 +1355,6 @@ class IndexImage {
|
||||
}
|
||||
}
|
||||
else {
|
||||
|
||||
// Create new file in current dir, same name + format extension
|
||||
String baseName = FileUtil.getBasename(in);
|
||||
|
||||
@ -1371,8 +1362,9 @@ class IndexImage {
|
||||
if (format == null) {
|
||||
format = "png";
|
||||
}
|
||||
out = new java.io.File(baseName + '.' + format);
|
||||
out = new File(baseName + '.' + format);
|
||||
}
|
||||
|
||||
if (!overWrite && out.exists()) {
|
||||
System.err.println("The file \"" + out.getAbsolutePath() + "\" allready exists!");
|
||||
System.exit(5);
|
||||
@ -1396,7 +1388,7 @@ class IndexImage {
|
||||
}
|
||||
}
|
||||
}
|
||||
catch (java.io.IOException ioe) {
|
||||
catch (IOException ioe) {
|
||||
ioe.printStackTrace(System.err);
|
||||
System.exit(5);
|
||||
}
|
||||
@ -1441,16 +1433,14 @@ class IndexImage {
|
||||
///////////////////////////////
|
||||
// Index
|
||||
long start = 0;
|
||||
long end;
|
||||
|
||||
if (speedTest > 0) {
|
||||
|
||||
// SPEED TESTING
|
||||
System.out.println("Measuring speed!");
|
||||
start = System.currentTimeMillis();
|
||||
|
||||
// END SPEED TESTING
|
||||
}
|
||||
|
||||
BufferedImage indexed;
|
||||
IndexColorModel colors;
|
||||
|
||||
@ -1459,7 +1449,6 @@ class IndexImage {
|
||||
colors = MonochromeColorModel.getInstance();
|
||||
}
|
||||
else if (gray) {
|
||||
|
||||
//indexed = ImageUtil.toBuffered(ImageUtil.grayscale(image), BufferedImage.TYPE_BYTE_GRAY);
|
||||
image = ImageUtil.toBuffered(ImageUtil.grayscale(image));
|
||||
indexed = getIndexedImage(image, colors = getIndexColorModel(image, numColors, hints), background, hints);
|
||||
@ -1470,7 +1459,6 @@ class IndexImage {
|
||||
}
|
||||
}
|
||||
else if (paletteImg != null) {
|
||||
|
||||
// Get palette from image
|
||||
indexed = getIndexedImage(ImageUtil.toBuffered(image, BufferedImage.TYPE_INT_ARGB),
|
||||
colors = getIndexColorModel(paletteImg, numColors, hints), background, hints);
|
||||
@ -1479,12 +1467,10 @@ class IndexImage {
|
||||
image = ImageUtil.toBuffered(image, BufferedImage.TYPE_INT_ARGB);
|
||||
indexed = getIndexedImage(image, colors = getIndexColorModel(image, numColors, hints), background, hints);
|
||||
}
|
||||
|
||||
if (speedTest > 0) {
|
||||
|
||||
// SPEED TESTING
|
||||
end = System.currentTimeMillis();
|
||||
System.out.println("Color selection + dither: " + (end - start) + " ms");
|
||||
|
||||
System.out.println("Color selection + dither: " + (System.currentTimeMillis() - start) + " ms");
|
||||
// END SPEED TESTING
|
||||
}
|
||||
|
||||
@ -1494,11 +1480,11 @@ class IndexImage {
|
||||
System.err.println("No writer for format: \"" + format + "\"!");
|
||||
}
|
||||
}
|
||||
catch (java.io.IOException ioe) {
|
||||
catch (IOException ioe) {
|
||||
ioe.printStackTrace(System.err);
|
||||
}
|
||||
if (speedTest > 0) {
|
||||
|
||||
if (speedTest > 0) {
|
||||
// SPEED TESTING
|
||||
System.out.println("Measuring speed!");
|
||||
|
||||
@ -1513,17 +1499,16 @@ class IndexImage {
|
||||
for (int i = 0; i < speedTest; i++) {
|
||||
start = System.currentTimeMillis();
|
||||
getIndexedImage(image, colors, background, hints);
|
||||
end = System.currentTimeMillis();
|
||||
time += (end - start);
|
||||
time += (System.currentTimeMillis() - start);
|
||||
System.out.print('.');
|
||||
if ((i + 1) % 10 == 0) {
|
||||
System.out.println("\nAverage (after " + (i + 1) + " iterations): " + (time / (i + 1)) + "ms");
|
||||
}
|
||||
}
|
||||
|
||||
System.out.println("\nDither only:");
|
||||
System.out.println("Total time (" + speedTest + " invocations): " + time + "ms");
|
||||
System.out.println("Average: " + time / speedTest + "ms");
|
||||
|
||||
// END SPEED TESTING
|
||||
}
|
||||
}
|
||||
|
||||
@ -39,7 +39,7 @@ import java.io.ByteArrayInputStream;
|
||||
* <p/>
|
||||
*
|
||||
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
|
||||
* @version $Id: //depot/branches/personal/haraldk/twelvemonkeys/release-2/twelvemonkeys-core/src/main/java/com/twelvemonkeys/io/FastByteArrayOutputStream.java#2 $
|
||||
* @version $Id: FastByteArrayOutputStream.java#2 $
|
||||
*/
|
||||
// TODO: Performance test of a stream impl that uses list of fixed size blocks, rather than contiguous block
|
||||
public final class FastByteArrayOutputStream extends ByteArrayOutputStream {
|
||||
@ -78,23 +78,24 @@ public final class FastByteArrayOutputStream extends ByteArrayOutputStream {
|
||||
else if (pLength == 0) {
|
||||
return;
|
||||
}
|
||||
int newcount = count + pLength;
|
||||
growIfNeeded(newcount);
|
||||
|
||||
int newCount = count + pLength;
|
||||
growIfNeeded(newCount);
|
||||
System.arraycopy(pBytes, pOffset, buf, count, pLength);
|
||||
count = newcount;
|
||||
count = newCount;
|
||||
}
|
||||
|
||||
@Override
|
||||
public synchronized void write(int pByte) {
|
||||
int newcount = count + 1;
|
||||
growIfNeeded(newcount);
|
||||
int newCount = count + 1;
|
||||
growIfNeeded(newCount);
|
||||
buf[count] = (byte) pByte;
|
||||
count = newcount;
|
||||
count = newCount;
|
||||
}
|
||||
|
||||
private void growIfNeeded(int pNewcount) {
|
||||
if (pNewcount > buf.length) {
|
||||
int newSize = Math.max(Math.min(buf.length << 1, buf.length + maxGrowSize), pNewcount);
|
||||
private void growIfNeeded(int pNewCount) {
|
||||
if (pNewCount > buf.length) {
|
||||
int newSize = Math.max(Math.min(buf.length << 1, buf.length + maxGrowSize), pNewCount);
|
||||
byte newBuf[] = new byte[newSize];
|
||||
System.arraycopy(buf, 0, newBuf, 0, count);
|
||||
buf = newBuf;
|
||||
@ -110,9 +111,10 @@ public final class FastByteArrayOutputStream extends ByteArrayOutputStream {
|
||||
// Non-synchronized version of toByteArray
|
||||
@Override
|
||||
public byte[] toByteArray() {
|
||||
byte newbuf[] = new byte[count];
|
||||
System.arraycopy(buf, 0, newbuf, 0, count);
|
||||
return newbuf;
|
||||
byte newBuf[] = new byte[count];
|
||||
System.arraycopy(buf, 0, newBuf, 0, count);
|
||||
|
||||
return newBuf;
|
||||
}
|
||||
|
||||
/**
|
||||
|
||||
@ -38,7 +38,7 @@ import java.io.InputStreamReader;
|
||||
* <p/>
|
||||
*
|
||||
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
|
||||
* @version $Id: //depot/branches/personal/haraldk/twelvemonkeys/release-2/twelvemonkeys-core/src/main/java/com/twelvemonkeys/io/FileSystem.java#1 $
|
||||
* @version $Id: FileSystem.java#1 $
|
||||
*/
|
||||
abstract class FileSystem {
|
||||
abstract long getFreeSpace(File pPath);
|
||||
@ -57,21 +57,21 @@ abstract class FileSystem {
|
||||
//System.out.println("os = " + os);
|
||||
|
||||
os = os.toLowerCase();
|
||||
if (os.indexOf("windows") != -1) {
|
||||
if (os.contains("windows")) {
|
||||
return new Win32FileSystem();
|
||||
}
|
||||
else if (os.indexOf("linux") != -1 ||
|
||||
os.indexOf("sun os") != -1 ||
|
||||
os.indexOf("sunos") != -1 ||
|
||||
os.indexOf("solaris") != -1 ||
|
||||
os.indexOf("mpe/ix") != -1 ||
|
||||
os.indexOf("hp-ux") != -1 ||
|
||||
os.indexOf("aix") != -1 ||
|
||||
os.indexOf("freebsd") != -1 ||
|
||||
os.indexOf("irix") != -1 ||
|
||||
os.indexOf("digital unix") != -1 ||
|
||||
os.indexOf("unix") != -1 ||
|
||||
os.indexOf("mac os x") != -1) {
|
||||
else if (os.contains("linux") ||
|
||||
os.contains("sun os") ||
|
||||
os.contains("sunos") ||
|
||||
os.contains("solaris") ||
|
||||
os.contains("mpe/ix") ||
|
||||
os.contains("hp-ux") ||
|
||||
os.contains("aix") ||
|
||||
os.contains("freebsd") ||
|
||||
os.contains("irix") ||
|
||||
os.contains("digital unix") ||
|
||||
os.contains("unix") ||
|
||||
os.contains("mac os x")) {
|
||||
return new UnixFileSystem();
|
||||
}
|
||||
else {
|
||||
|
||||
@ -186,6 +186,7 @@ public final class FileUtil {
|
||||
if (!pOverWrite && pToFile.exists()) {
|
||||
return false;
|
||||
}
|
||||
|
||||
InputStream in = null;
|
||||
OutputStream out = null;
|
||||
|
||||
@ -202,6 +203,7 @@ public final class FileUtil {
|
||||
close(in);
|
||||
close(out);
|
||||
}
|
||||
|
||||
return true; // If we got here, everything's probably okay.. ;-)
|
||||
}
|
||||
|
||||
@ -307,6 +309,8 @@ public final class FileUtil {
|
||||
Validate.notNull(pFrom, "from");
|
||||
Validate.notNull(pTo, "to");
|
||||
|
||||
// TODO: Consider using file channels for faster copy where possible
|
||||
|
||||
// Use buffer size two times byte array, to avoid i/o bottleneck
|
||||
// TODO: Consider letting the client decide as this is sometimes not a good thing!
|
||||
InputStream in = new BufferedInputStream(pFrom, BUF_SIZE * 2);
|
||||
@ -322,31 +326,9 @@ public final class FileUtil {
|
||||
// Flush out stream, to write any remaining buffered data
|
||||
out.flush();
|
||||
|
||||
return true; // If we got here, everything's probably okay.. ;-)
|
||||
return true; // If we got here, everything is probably okay.. ;-)
|
||||
}
|
||||
|
||||
/*
|
||||
// Consider using the example from
|
||||
// http://developer.java.sun.com/developer/Books/performance/ch04.pdf
|
||||
// Test if this is really faster. And what about a lot of concurrence?
|
||||
// Have a pool of buffers? :-)
|
||||
|
||||
static final int BUFF_SIZE = 100000;
|
||||
static final byte[] buffer = new byte[BUFF_SIZE];
|
||||
|
||||
public static void copy(InputStream in, OutputStream out) throws IOException {
|
||||
while (true) {
|
||||
synchronized (buffer) {
|
||||
int amountRead = in.read(buffer);
|
||||
if (amountRead == -1) {
|
||||
break;
|
||||
}
|
||||
out.write(buffer, 0, amountRead);
|
||||
}
|
||||
}
|
||||
}
|
||||
*/
|
||||
|
||||
/**
|
||||
* Gets the file (type) extension of the given file.
|
||||
* A file extension is the part of the filename, after the last occurence
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user