/*
* Copyright (c) 2007, 2014, 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.image.AffineTransformOp;
import java.awt.image.BufferedImage;
import java.awt.image.BufferedImageOp;
import java.awt.image.ConvolveOp;
import java.awt.image.LookupOp;
import java.awt.image.RescaleOp;
import sun.java2d.SunGraphics2D;
import sun.java2d.SurfaceData;
import sun.java2d.loops.CompositeType;
import sun.java2d.pipe.BufferedBufImgOps;
import static sun.java2d.d3d.D3DContext.D3DContextCaps.*;
class D3DBufImgOps extends BufferedBufImgOps {
/**
* This method is called from D3DDrawImage.transformImage() only. It
* validates the provided BufferedImageOp to determine whether the op
* is one that can be accelerated by the D3D pipeline. If the operation
* cannot be completed for any reason, this method returns false;
* otherwise, the given BufferedImage is rendered to the destination
* using the provided BufferedImageOp and this method returns true.
*/
static boolean renderImageWithOp(SunGraphics2D sg, BufferedImage img,
BufferedImageOp biop, int x, int y)
{
// Validate the provided BufferedImage (make sure it is one that
// is supported, and that its properties are acceleratable)
if (biop instanceof ConvolveOp) {
if (!isConvolveOpValid((ConvolveOp)biop)) {
return false;
}
} else if (biop instanceof RescaleOp) {
if (!isRescaleOpValid((RescaleOp)biop, img)) {
return false;
}
} else if (biop instanceof LookupOp) {
if (!isLookupOpValid((LookupOp)biop, img)) {
return false;
}
} else {
// No acceleration for other BufferedImageOps (yet)
return false;
}
SurfaceData dstData = sg.surfaceData;
if (!(dstData instanceof D3DSurfaceData) ||
(sg.interpolationType == AffineTransformOp.TYPE_BICUBIC) ||
(sg.compositeState > SunGraphics2D.COMP_ALPHA))
{
return false;
}
SurfaceData srcData =
dstData.getSourceSurfaceData(img, SunGraphics2D.TRANSFORM_ISIDENT,
CompositeType.SrcOver, null);
if (!(srcData instanceof D3DSurfaceData)) {
// REMIND: this hack tries to ensure that we have a cached texture
srcData =
dstData.getSourceSurfaceData(img, SunGraphics2D.TRANSFORM_ISIDENT,
CompositeType.SrcOver, null);
if (!(srcData instanceof D3DSurfaceData)) {
return false;
}
}
// Verify that the source surface is actually a texture and that
// shaders are supported
D3DSurfaceData d3dSrc = (D3DSurfaceData)srcData;
D3DGraphicsDevice gd =
(D3DGraphicsDevice)d3dSrc.getDeviceConfiguration().getDevice();
if (d3dSrc.getType() != D3DSurfaceData.TEXTURE ||
!gd.isCapPresent(CAPS_LCD_SHADER))
{
/**代码未完, 请加载全部代码(NowJava.com).**/