author | henryjen |
Thu, 05 Jun 2014 13:59:01 -0700 | |
changeset 25192 | 4e2dc0f8702d |
parent 22567 | 5816a47fa4dd |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2007, 2014, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package sun.java2d.d3d; |
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import java.awt.LinearGradientPaint; |
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import java.awt.MultipleGradientPaint; |
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import java.awt.MultipleGradientPaint.ColorSpaceType; |
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import java.awt.MultipleGradientPaint.CycleMethod; |
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import java.awt.TexturePaint; |
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import java.awt.image.BufferedImage; |
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import java.util.HashMap; |
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import java.util.Map; |
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import java.lang.annotation.Native; |
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import sun.java2d.SunGraphics2D; |
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import sun.java2d.SurfaceData; |
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import sun.java2d.loops.CompositeType; |
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import static sun.java2d.d3d.D3DContext.D3DContextCaps.*; |
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abstract class D3DPaints { |
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/** |
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* Holds all registered implementations, using the corresponding |
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* SunGraphics2D.PAINT_* constant as the hash key. |
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*/ |
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private static Map<Integer, D3DPaints> impls = |
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new HashMap<Integer, D3DPaints>(4, 1.0f); |
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static { |
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impls.put(SunGraphics2D.PAINT_GRADIENT, new Gradient()); |
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impls.put(SunGraphics2D.PAINT_LIN_GRADIENT, new LinearGradient()); |
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impls.put(SunGraphics2D.PAINT_RAD_GRADIENT, new RadialGradient()); |
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impls.put(SunGraphics2D.PAINT_TEXTURE, new Texture()); |
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} |
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/** |
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* Attempts to locate an implementation corresponding to the paint state |
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* of the provided SunGraphics2D object. If no implementation can be |
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* found, or if the paint cannot be accelerated under the conditions |
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* of the SunGraphics2D, this method returns false; otherwise, returns |
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* true. |
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*/ |
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static boolean isValid(SunGraphics2D sg2d) { |
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D3DPaints impl = impls.get(sg2d.paintState); |
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return (impl != null && impl.isPaintValid(sg2d)); |
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} |
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/** |
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* Returns true if this implementation is able to accelerate the |
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* Paint object associated with, and under the conditions of, the |
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* provided SunGraphics2D instance; otherwise returns false. |
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*/ |
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abstract boolean isPaintValid(SunGraphics2D sg2d); |
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/************************* GradientPaint support ****************************/ |
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private static class Gradient extends D3DPaints { |
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private Gradient() {} |
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/** |
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* Returns true if the given GradientPaint instance can be |
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* used by the accelerated D3DPaints.Gradient implementation. |
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* A GradientPaint is considered valid only if the destination |
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* has support for fragment shaders. |
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*/ |
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@Override |
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boolean isPaintValid(SunGraphics2D sg2d) { |
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D3DSurfaceData dstData = (D3DSurfaceData)sg2d.surfaceData; |
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D3DGraphicsDevice gd = (D3DGraphicsDevice) |
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dstData.getDeviceConfiguration().getDevice(); |
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return gd.isCapPresent(CAPS_LCD_SHADER); |
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} |
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} |
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/************************** TexturePaint support ****************************/ |
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private static class Texture extends D3DPaints { |
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private Texture() {} |
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/** |
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* Returns true if the given TexturePaint instance can be used by the |
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* accelerated BufferedPaints.Texture implementation. |
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* |
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* A TexturePaint is considered valid if the following conditions |
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* are met: |
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* - the texture image dimensions are power-of-two |
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* - the texture image can be (or is already) cached in a D3D |
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* texture object |
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*/ |
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@Override |
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public boolean isPaintValid(SunGraphics2D sg2d) { |
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TexturePaint paint = (TexturePaint)sg2d.paint; |
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D3DSurfaceData dstData = (D3DSurfaceData)sg2d.surfaceData; |
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BufferedImage bi = paint.getImage(); |
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// verify that the texture image dimensions are pow2 |
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D3DGraphicsDevice gd = |
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(D3DGraphicsDevice)dstData.getDeviceConfiguration().getDevice(); |
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int imgw = bi.getWidth(); |
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int imgh = bi.getHeight(); |
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if (!gd.isCapPresent(CAPS_TEXNONPOW2)) { |
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if ((imgw & (imgw - 1)) != 0 || (imgh & (imgh - 1)) != 0) { |
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return false; |
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} |
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} |
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// verify that the texture image is square if it has to be |
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if (!gd.isCapPresent(CAPS_TEXNONSQUARE) && imgw != imgh) |
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{ |
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return false; |
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} |
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SurfaceData srcData = |
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dstData.getSourceSurfaceData(bi, SunGraphics2D.TRANSFORM_ISIDENT, |
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CompositeType.SrcOver, null); |
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if (!(srcData instanceof D3DSurfaceData)) { |
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// REMIND: this is a hack that attempts to cache the system |
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// memory image from the TexturePaint instance into a |
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// D3D texture... |
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srcData = |
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dstData.getSourceSurfaceData(bi, SunGraphics2D.TRANSFORM_ISIDENT, |
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CompositeType.SrcOver, null); |
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if (!(srcData instanceof D3DSurfaceData)) { |
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return false; |
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} |
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} |
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// verify that the source surface is actually a texture |
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D3DSurfaceData d3dData = (D3DSurfaceData)srcData; |
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if (d3dData.getType() != D3DSurfaceData.TEXTURE) { |
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return false; |
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} |
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return true; |
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} |
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} |
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/****************** Shared MultipleGradientPaint support ********************/ |
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private static abstract class MultiGradient extends D3DPaints { |
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/** |
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* Note that this number is lower than the MULTI_MAX_FRACTIONS |
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* defined in the superclass. The D3D pipeline now uses a |
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* slightly more complicated shader (to avoid the gradient banding |
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* issues), which has a higher instruction count. To ensure that |
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* all versions of the shader can be compiled for PS 2.0 hardware, |
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* we need to cap this maximum value at 8. |
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*/ |
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@Native public static final int MULTI_MAX_FRACTIONS_D3D = 8; |
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protected MultiGradient() {} |
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/** |
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* Returns true if the given MultipleGradientPaint instance can be |
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* used by the accelerated D3DPaints.MultiGradient implementation. |
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* A MultipleGradientPaint is considered valid if the following |
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* conditions are met: |
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* - the number of gradient "stops" is <= MAX_FRACTIONS |
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* - the destination has support for fragment shaders |
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*/ |
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@Override |
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boolean isPaintValid(SunGraphics2D sg2d) { |
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MultipleGradientPaint paint = (MultipleGradientPaint)sg2d.paint; |
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// REMIND: ugh, this creates garbage; would be nicer if |
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// we had a MultipleGradientPaint.getNumStops() method... |
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if (paint.getFractions().length > MULTI_MAX_FRACTIONS_D3D) { |
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return false; |
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} |
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D3DSurfaceData dstData = (D3DSurfaceData)sg2d.surfaceData; |
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D3DGraphicsDevice gd = (D3DGraphicsDevice) |
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dstData.getDeviceConfiguration().getDevice(); |
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if (!gd.isCapPresent(CAPS_LCD_SHADER)) { |
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return false; |
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} |
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return true; |
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} |
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} |
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/********************** LinearGradientPaint support *************************/ |
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private static class LinearGradient extends MultiGradient { |
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private LinearGradient() {} |
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@Override |
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boolean isPaintValid(SunGraphics2D sg2d) { |
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LinearGradientPaint paint = (LinearGradientPaint)sg2d.paint; |
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if (paint.getFractions().length == 2 && |
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paint.getCycleMethod() != CycleMethod.REPEAT && |
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paint.getColorSpace() != ColorSpaceType.LINEAR_RGB) |
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{ |
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D3DSurfaceData dstData = (D3DSurfaceData)sg2d.surfaceData; |
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D3DGraphicsDevice gd = (D3DGraphicsDevice) |
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dstData.getDeviceConfiguration().getDevice(); |
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if (gd.isCapPresent(CAPS_LCD_SHADER)) { |
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// we can delegate to the optimized two-color gradient |
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// codepath, which should be faster |
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return true; |
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} |
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} |
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return super.isPaintValid(sg2d); |
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} |
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} |
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/********************** RadialGradientPaint support *************************/ |
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private static class RadialGradient extends MultiGradient { |
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private RadialGradient() {} |
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} |
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} |