/* * Copyright (c) 2007, 2013, Oracle and/or its affiliates. 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. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package sun.java2d.d3d; import java.awt.LinearGradientPaint; import java.awt.MultipleGradientPaint; import java.awt.MultipleGradientPaint.ColorSpaceType; import java.awt.MultipleGradientPaint.CycleMethod; import java.awt.TexturePaint; import java.awt.image.BufferedImage; import java.util.HashMap; import java.util.Map; import java.lang.annotation.Native; import sun.java2d.SunGraphics2D; import sun.java2d.SurfaceData; import sun.java2d.loops.CompositeType; import static sun.java2d.d3d.D3DContext.D3DContextCaps.*; abstract class D3DPaints { /** * Holds all registered implementations, using the corresponding * SunGraphics2D.PAINT_* constant as the hash key. */ private static Map impls = new HashMap(4, 1.0f); static { impls.put(SunGraphics2D.PAINT_GRADIENT, new Gradient()); impls.put(SunGraphics2D.PAINT_LIN_GRADIENT, new LinearGradient()); impls.put(SunGraphics2D.PAINT_RAD_GRADIENT, new RadialGradient()); impls.put(SunGraphics2D.PAINT_TEXTURE, new Texture()); } /** * 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) { D3DPaints impl = impls.get(sg2d.paintState); return (impl != null && impl.isPaintValid(sg2d)); } /** * 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); /************************* GradientPaint support ****************************/ private static class Gradient extends D3DPaints { private Gradient() {} /** * Returns true if the given GradientPaint instance can be * used by the accelerated D3DPaints.Gradient implementation. * A GradientPaint is considered valid only if the destination * has support for fragment shaders. */ @Override boolean isPaintValid(SunGraphics2D sg2d) { D3DSurfaceData dstData = (D3DSurfaceData)sg2d.surfaceData; D3DGraphicsDevice gd = (D3DGraphicsDevice) dstData.getDeviceConfiguration().getDevice(); return gd.isCapPresent(CAPS_LCD_SHADER); } } /************************** TexturePaint support ****************************/ private static class Texture extends D3DPaints { private Texture() {} /** * Returns true if the given TexturePaint instance can be used by the * accelerated BufferedPaints.Texture implementation. * * A TexturePaint is considered valid if the following conditions * are met: * - the texture image dimensions are power-of-two * - the texture image can be (or is already) cached in a D3D * texture object */ @Override public boolean isPaintValid(SunGraphics2D sg2d) { TexturePaint paint = (TexturePaint)sg2d.paint; D3DSurfaceData dstData = (D3DSurfaceData)sg2d.surfaceData; BufferedImage bi = paint.getImage(); // verify that the texture image dimensions are pow2 D3DGraphicsDevice gd = (D3DGraphicsDevice)dstData.getDeviceConfiguration().getDevice(); int imgw = bi.getWidth(); int imgh = bi.getHeight(); if (!gd.isCapPresent(CAPS_TEXNONPOW2)) { if ((imgw & (imgw - 1)) != 0 || (imgh & (imgh - 1)) != 0) { return false; } } // verify that the texture image is square if it has to be if (!gd.isCapPresent(CAPS_TEXNONSQUARE) && imgw != imgh) { return false; } SurfaceData srcData = dstData.getSourceSurfaceData(bi, sg2d.TRANSFORM_ISIDENT, CompositeType.SrcOver, null); if (!(srcData instanceof D3DSurfaceData)) { // REMIND: this is a hack that attempts to cache the system // memory image from the TexturePaint instance into a // D3D texture... srcData = dstData.getSourceSurfaceData(bi, sg2d.TRANSFORM_ISIDENT, CompositeType.SrcOver, null); if (!(srcData instanceof D3DSurfaceData)) { return false; } } // verify that the source surface is actually a texture D3DSurfaceData d3dData = (D3DSurfaceData)srcData; if (d3dData.getType() != D3DSurfaceData.TEXTURE) { return false; } return true; } } /****************** Shared MultipleGradientPaint support ********************/ private static abstract class MultiGradient extends D3DPaints { /** * Note that this number is lower than the MULTI_MAX_FRACTIONS * defined in the superclass. The D3D pipeline now uses a * slightly more complicated shader (to avoid the gradient banding * issues), which has a higher instruction count. To ensure that * all versions of the shader can be compiled for PS 2.0 hardware, * we need to cap this maximum value at 8. */ @Native public static final int MULTI_MAX_FRACTIONS_D3D = 8; protected MultiGradient() {} /** * Returns true if the given MultipleGradientPaint instance can be * used by the accelerated D3DPaints.MultiGradient implementation. * A MultipleGradientPaint is considered valid if the following * conditions are met: * - the number of gradient "stops" is <= MAX_FRACTIONS * - the destination has support for fragment shaders */ @Override boolean isPaintValid(SunGraphics2D sg2d) { MultipleGradientPaint paint = (MultipleGradientPaint)sg2d.paint; // REMIND: ugh, this creates garbage; would be nicer if // we had a MultipleGradientPaint.getNumStops() method... if (paint.getFractions().length > MULTI_MAX_FRACTIONS_D3D) { return false; } D3DSurfaceData dstData = (D3DSurfaceData)sg2d.surfaceData; D3DGraphicsDevice gd = (D3DGraphicsDevice) dstData.getDeviceConfiguration().getDevice(); if (!gd.isCapPresent(CAPS_LCD_SHADER)) { return false; } return true; } } /********************** LinearGradientPaint support *************************/ private static class LinearGradient extends MultiGradient { private LinearGradient() {} @Override boolean isPaintValid(SunGraphics2D sg2d) { LinearGradientPaint paint = (LinearGradientPaint)sg2d.paint; if (paint.getFractions().length == 2 && paint.getCycleMethod() != CycleMethod.REPEAT && paint.getColorSpace() != ColorSpaceType.LINEAR_RGB) { D3DSurfaceData dstData = (D3DSurfaceData)sg2d.surfaceData; D3DGraphicsDevice gd = (D3DGraphicsDevice) dstData.getDeviceConfiguration().getDevice(); if (gd.isCapPresent(CAPS_LCD_SHADER)) { // we can delegate to the optimized two-color gradient // codepath, which should be faster return true; } } return super.isPaintValid(sg2d); } } /********************** RadialGradientPaint support *************************/ private static class RadialGradient extends MultiGradient { private RadialGradient() {} } }