1 files changed, 314 insertions, 0 deletions
diff --git a/src/solaris/classes/sun/java2d/xr/XRPaints.java b/src/solaris/classes/sun/java2d/xr/XRPaints.java
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+++ b/src/solaris/classes/sun/java2d/xr/XRPaints.java
@@ -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));
+    }
+}