+++ /dev/null
-/*
- * Copyright (c) 2009, Takeyuki Nagao
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the
- * following conditions are met:
- *
- * * Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the
- * following disclaimer.
- * * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the
- * following disclaimer in the documentation and/or other
- * materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
- * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
- * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
- * OF SUCH DAMAGE.
- */
-
-package jp.sourceforge.dvibrowser.dvicore.render;
-
-import jp.sourceforge.dvibrowser.dvicore.DviException;
-import jp.sourceforge.dvibrowser.dvicore.DviRect;
-import jp.sourceforge.dvibrowser.dvicore.DviResolution;
-import jp.sourceforge.dvibrowser.dvicore.api.GammaCorrector;
-import jp.sourceforge.dvibrowser.dvicore.api.ImageDevice;
-import jp.sourceforge.dvibrowser.dvicore.gui.swing.ViewSpec;
-
-
-public class IntRGBImage
-{
- private final int [] buf;
- private final int width;
- private final int height;
-
- public IntRGBImage(int width, int height) {
- this.buf = new int [width * height];
- this.width = width;
- this.height = height;
- }
-
- public IntRGBImage(int [] buf, int width, int height) {
- this.buf = buf;
- this.width = width;
- this.height = height;
- }
-
- public int [] getBuffer() { return buf; }
-
- public int width() { return width; }
- public int height() { return height; }
-
- public void fill(int c) {
- for (int i=0; i<buf.length; i++)
-// buf[i] = 0xff000000 | c;
- buf[i] = c;
- }
-
- public ImageDevice getImageDevice(DviResolution res, GammaCorrector gc) {
- return new ImageDeviceImpl(res, gc);
- }
- public ImageDevice getImageDevice(DviResolution res) {
- return getImageDevice(res, null);
- }
-
- private class ImageDeviceImpl
- extends AbstractDevice
- implements ImageDevice
- {
- private final GammaCorrector originalGammaCorrector;
- private GammaCorrector gammaCorrector;
- private int maxval;
- protected ImageDeviceImpl(DviResolution res, GammaCorrector gammaCorrector) {
- super(res);
- this.originalGammaCorrector = (gammaCorrector == null) ? ViewSpec.getDefaultGammaCorrector() : gammaCorrector;
- if (originalGammaCorrector == null)
- throw new IllegalStateException("Unable to determine the gamma corrector.");
- }
-
- public DviRect getBounds() {
- return new DviRect(-point.x, -point.y, width, height);
- }
-
- public void begin(int maxval) {
- this.maxval = maxval;
- gammaCorrector = GammaCorrectorCache.wrap(originalGammaCorrector);
- }
-
- public void end() {
- }
-
- private int ptr = 0;
-// private int gw;
-// private int gh;
- public boolean beginImage(int w, int h)
- throws DviException
- {
-// gw = w;
-// gh = h;
- ptr = point.x + point.y * width;
- return true;
- }
- public void endImage() {
- }
-
- public void putLine(int [] l_buf, int off, int len)
- throws DviException
- {
- final int color = getColor().toIntRGB();
- for (int i=0; i<len; i++) {
- final int alpha10 = gammaCorrector.correctGamma(l_buf[off + i], maxval);
- if (alpha10 != 0)
- buf[ptr + i] = blend(buf[ptr + i], color, alpha10);
- }
- ptr += width;
- }
- }
-
- private static int blendARGB(int c1, int c2, final int alpha10) {
- int r, g, b;
-
- b = c1 & 0xff;
- b += (alpha10 * ((c2 & 0xff) - b)) >>> 10;
- b &= 0xff;
- c1 >>>= 8;
- c2 >>>= 8;
-
- g = c1 & 0xff;
- g += (alpha10 * ((c2 & 0xff) - g)) >>> 10;
- g &= 0xff;
- c1 >>>= 8;
- c2 >>>= 8;
-
- r = c1 & 0xff;
- r += (alpha10 * ((c2 & 0xff) - r)) >>> 10;
- r &= 0xff;
-
- return 0xff000000 | (r << 16) | (g << 8) | b;
- }
-
- private static int blend(int c1, int c2, final int alpha10) {
- int r, g, b;
-
- b = c1 & 0xff;
- b += (alpha10 * ((c2 & 0xff) - b)) >>> 10;
- b &= 0xff;
- c1 >>>= 8;
- c2 >>>= 8;
-
- g = c1 & 0xff;
- g += (alpha10 * ((c2 & 0xff) - g)) >>> 10;
- g &= 0xff;
- c1 >>>= 8;
- c2 >>>= 8;
-
- r = c1 & 0xff;
- r += (alpha10 * ((c2 & 0xff) - r)) >>> 10;
- r &= 0xff;
-
- return (r << 16) | (g << 8) | b;
- }
-
-}
-//BenchMark: dvidump: 535 samples in 19.174 sec. 27.902 samples/sec. 35.839 msec./sample.
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