--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/solaris/classes/sun/java2d/xr/XRPaints.java Fri May 28 11:37:44 2010 -0700
@@ -0,0 +1,314 @@
+/*
+ * Copyright 2010 Sun Microsystems, Inc. All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation. Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+package sun.java2d.xr;
+
+import java.awt.*;
+import java.awt.MultipleGradientPaint.*;
+import java.awt.geom.*;
+import java.awt.image.*;
+
+import sun.java2d.*;
+import sun.java2d.loops.*;
+import sun.java2d.pipe.*;
+
+abstract class XRPaints {
+ static XRCompositeManager xrCompMan;
+
+ static final XRGradient xrGradient = new XRGradient();
+ static final XRLinearGradient xrLinearGradient = new XRLinearGradient();
+ static final XRRadialGradient xrRadialGradient = new XRRadialGradient();
+ static final XRTexture xrTexture = new XRTexture();
+
+ public static void register(XRCompositeManager xrComp) {
+ xrCompMan = xrComp;
+ }
+
+ private static XRPaints getXRPaint(SunGraphics2D sg2d) {
+ switch (sg2d.paintState) {
+ case SunGraphics2D.PAINT_GRADIENT:
+ return xrGradient;
+
+ case SunGraphics2D.PAINT_LIN_GRADIENT:
+ return xrLinearGradient;
+
+ case SunGraphics2D.PAINT_RAD_GRADIENT:
+ return xrRadialGradient;
+
+ case SunGraphics2D.PAINT_TEXTURE:
+ return xrTexture;
+
+ default:
+ return null;
+ }
+ }
+
+ /**
+ * Attempts to locate an implementation corresponding to the paint state of
+ * the provided SunGraphics2D object. If no implementation can be found, or
+ * if the paint cannot be accelerated under the conditions of the
+ * SunGraphics2D, this method returns false; otherwise, returns true.
+ */
+ static boolean isValid(SunGraphics2D sg2d) {
+ XRPaints impl = getXRPaint(sg2d);
+ return (impl != null && impl.isPaintValid(sg2d));
+ }
+
+ static void setPaint(SunGraphics2D sg2d, Paint paint) {
+ XRPaints impl = getXRPaint(sg2d);
+ if (impl != null) {
+ impl.setXRPaint(sg2d, paint);
+ }
+ }
+
+ /**
+ * Returns true if this implementation is able to accelerate the Paint
+ * object associated with, and under the conditions of, the provided
+ * SunGraphics2D instance; otherwise returns false.
+ */
+ abstract boolean isPaintValid(SunGraphics2D sg2d);
+
+ abstract void setXRPaint(SunGraphics2D sg2d, Paint paint);
+
+ private static class XRGradient extends XRPaints {
+ private XRGradient() {
+ }
+
+ /**
+ * There are no restrictions for accelerating GradientPaint, so this
+ * method always returns true.
+ */
+ @Override
+ boolean isPaintValid(SunGraphics2D sg2d) {
+ return true;
+ }
+
+ void setXRPaint(SunGraphics2D sg2d, Paint pt) {
+ GradientPaint paint = (GradientPaint) pt;
+
+ int[] pixels = convertToIntArgbPixels(new Color[] { paint.getColor1(), paint.getColor2() }, false);
+
+ float fractions[] = new float[2];
+ fractions[0] = 0;
+ fractions[1] = 1;
+
+ Point2D pt1 = paint.getPoint1();
+ Point2D pt2 = paint.getPoint2();
+
+ AffineTransform at = (AffineTransform) sg2d.transform.clone();
+ try {
+ at.invert();
+ } catch (NoninvertibleTransformException ex) {
+ at.setToIdentity();
+ }
+
+ int repeat = paint.isCyclic() ? XRUtils.RepeatReflect : XRUtils.RepeatPad;
+
+ XRBackend con = xrCompMan.getBackend();
+ int gradient = con.createLinearGradient(pt1, pt2, fractions, pixels, repeat, at);
+ xrCompMan.setGradientPaint(new XRSurfaceData.XRInternalSurfaceData(con, gradient, at));
+ }
+ }
+
+ public int getGradientLength(Point2D pt1, Point2D pt2) {
+ double xDiff = Math.max(pt1.getX(), pt2.getX()) - Math.min(pt1.getX(), pt2.getX());
+ double yDiff = Math.max(pt1.getY(), pt2.getY()) - Math.min(pt1.getY(), pt2.getY());
+ return (int) Math.ceil(Math.sqrt(xDiff*xDiff + yDiff*yDiff));
+ }
+
+ private static class XRLinearGradient extends XRPaints {
+
+ @Override
+ boolean isPaintValid(SunGraphics2D sg2d) {
+ return true;
+ }
+
+ @Override
+ void setXRPaint(SunGraphics2D sg2d, Paint pt) {
+ LinearGradientPaint paint = (LinearGradientPaint) pt;
+ boolean linear = (paint.getColorSpace() == ColorSpaceType.LINEAR_RGB);
+
+ Color[] colors = paint.getColors();
+ Point2D pt1 = paint.getStartPoint();
+ Point2D pt2 = paint.getEndPoint();
+
+
+ AffineTransform at = paint.getTransform();
+ at.preConcatenate(sg2d.transform);
+
+ int repeat = XRUtils.getRepeatForCycleMethod(paint.getCycleMethod());
+ float[] fractions = paint.getFractions();
+ int[] pixels = convertToIntArgbPixels(colors, linear);
+
+ try {
+ at.invert();
+ } catch (NoninvertibleTransformException ex) {
+ ex.printStackTrace();
+ }
+
+ XRBackend con = xrCompMan.getBackend();
+ int gradient = con.createLinearGradient(pt1, pt2, fractions, pixels, repeat, at);
+ xrCompMan.setGradientPaint(new XRSurfaceData.XRInternalSurfaceData(con, gradient, at));
+ }
+ }
+
+ private static class XRRadialGradient extends XRPaints {
+
+ @Override
+ boolean isPaintValid(SunGraphics2D sg2d) {
+ RadialGradientPaint grad = (RadialGradientPaint) sg2d.paint;
+ return grad.getFocusPoint().equals(grad.getCenterPoint());
+ }
+
+ @Override
+ void setXRPaint(SunGraphics2D sg2d, Paint pt) {
+ RadialGradientPaint paint = (RadialGradientPaint) pt;
+ boolean linear = (paint.getColorSpace() == ColorSpaceType.LINEAR_RGB);
+ Color[] colors = paint.getColors();
+ Point2D center = paint.getCenterPoint();
+ Point2D focus = paint.getFocusPoint();
+
+ int repeat = XRUtils.getRepeatForCycleMethod(paint.getCycleMethod());
+ float[] fractions = paint.getFractions();
+ int[] pixels = convertToIntArgbPixels(colors, linear);
+ float radius = paint.getRadius();
+
+ // save original (untransformed) center and focus points
+ double cx = center.getX();
+ double cy = center.getY();
+ double fx = focus.getX();
+ double fy = focus.getY();
+
+ AffineTransform at = paint.getTransform();
+ at.preConcatenate(sg2d.transform);
+ focus = at.transform(focus, focus);
+
+ // transform unit circle to gradient coords; we start with the
+ // unit circle (center=(0,0), focus on positive x-axis, radius=1)
+ // and then transform into gradient space
+ at.translate(cx, cy);
+ at.rotate(fx - cx, fy - cy);
+ // at.scale(radius, radius);
+
+ // invert to get mapping from device coords to unit circle
+ try {
+ at.invert();
+ } catch (Exception e) {
+ at.setToScale(0.0, 0.0);
+ }
+ focus = at.transform(focus, focus);
+
+ // clamp the focus point so that it does not rest on, or outside
+ // of, the circumference of the gradient circle
+ fx = Math.min(focus.getX(), 0.99);
+
+ XRBackend con = xrCompMan.getBackend();
+ int gradient = con.createRadialGradient(new Point2D.Float(0, 0), new Point2D.Float(0, 0), 0, radius, fractions, pixels, repeat, at);
+ xrCompMan.setGradientPaint(new XRSurfaceData.XRInternalSurfaceData(con, gradient, at));
+ }
+ }
+
+ private static class XRTexture extends XRPaints {
+
+ @Override
+ boolean isPaintValid(SunGraphics2D sg2d) {
+ TexturePaint paint = (TexturePaint) sg2d.paint;
+ BufferedImage bi = paint.getImage();
+ XRSurfaceData dstData = (XRSurfaceData) sg2d.getDestSurface();
+
+ SurfaceData srcData = dstData.getSourceSurfaceData(bi, SunGraphics2D.TRANSFORM_ISIDENT, CompositeType.SrcOver, null);
+ if (!(srcData instanceof XRSurfaceData)) {
+ // REMIND: this is a hack that attempts to cache the system
+ // memory image from the TexturePaint instance into an
+ // OpenGL texture...
+ srcData = dstData.getSourceSurfaceData(bi, SunGraphics2D.TRANSFORM_ISIDENT, CompositeType.SrcOver, null);
+ if (!(srcData instanceof XRSurfaceData)) {
+ return false;
+ }
+ }
+
+ return true;
+ }
+
+ @Override
+ void setXRPaint(SunGraphics2D sg2d, Paint pt) {
+ TexturePaint paint = (TexturePaint) pt;
+
+ BufferedImage bi = paint.getImage();
+ SurfaceData dstData = sg2d.surfaceData;
+ SurfaceData srcData = dstData.getSourceSurfaceData(bi, SunGraphics2D.TRANSFORM_ISIDENT, CompositeType.SrcOver, null);
+
+ // REMIND: this hack tries to ensure that we have a cached texture
+ if (!(srcData instanceof XRSurfaceData)) {
+ srcData = dstData.getSourceSurfaceData(paint.getImage(), SunGraphics2D.TRANSFORM_ISIDENT, CompositeType.SrcOver, null);
+ if (!(srcData instanceof XRSurfaceData)) {
+ throw new InternalError("Surface not cachable");
+ }
+ }
+
+ XRSurfaceData x11SrcData = (XRSurfaceData) srcData;
+
+ AffineTransform at = (AffineTransform) sg2d.transform.clone();
+ Rectangle2D anchor = paint.getAnchorRect();
+ at.translate(anchor.getX(), anchor.getY());
+ at.scale(anchor.getWidth() / ((double) bi.getWidth()), anchor.getHeight() / ((double) bi.getHeight()));
+
+ try {
+ at.invert();
+ } catch (NoninvertibleTransformException ex) {
+ at.setToIdentity(); /* TODO: Right thing to do in this case? */
+ }
+
+ x11SrcData.validateAsSource(at, XRUtils.RepeatNormal, XRUtils.ATransOpToXRQuality(sg2d.interpolationType));
+ xrCompMan.setTexturePaint(((XRSurfaceData) srcData));
+ }
+ }
+
+ public int[] convertToIntArgbPixels(Color[] colors, boolean linear) {
+ int[] pixels = new int[colors.length];
+ for (int i = 0; i < colors.length; i++) {
+ pixels[i] = colorToIntArgbPixel(colors[i], linear);
+ }
+ return pixels;
+ }
+
+ public int colorToIntArgbPixel(Color c, boolean linear) {
+ int rgb = c.getRGB();
+
+ int a = rgb >>> 24;
+ int r = (rgb >> 16) & 0xff;
+ int g = (rgb >> 8) & 0xff;
+ int b = (rgb) & 0xff;
+ if (linear) {
+ r = BufferedPaints.convertSRGBtoLinearRGB(r);
+ g = BufferedPaints.convertSRGBtoLinearRGB(g);
+ b = BufferedPaints.convertSRGBtoLinearRGB(b);
+ }
+
+ a *= xrCompMan.getExtraAlpha();
+
+ return ((a << 24) | (r << 16) | (g << 8) | (b));
+ }
+}