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/*
* Copyright (c) 2011, 2022, 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
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*/
package com.sun.javafx.webkit.prism;
import com.sun.javafx.logging.PlatformLogger;
import com.sun.prism.CompositeMode;
import com.sun.prism.Graphics;
import com.sun.prism.GraphicsPipeline;
import com.sun.prism.Image;
import com.sun.prism.PixelFormat;
import com.sun.prism.PrinterGraphics;
import com.sun.prism.RTTexture;
import com.sun.prism.ResourceFactory;
import com.sun.prism.ResourceFactoryListener;
import com.sun.prism.Texture;
import com.sun.prism.paint.Color;
import com.sun.prism.paint.Paint;
import java.lang.ref.WeakReference;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.IntBuffer;
/**
* @author Alexey.Ushakov
*/
final class RTImage extends PrismImage implements ResourceFactoryListener {
private RTTexture txt;
private final int width, height;
private WeakReference registeredWithFactory = null;
private ByteBuffer pixelBuffer;
private float pixelScale;
private final static PlatformLogger log =
PlatformLogger.getLogger(RTImage.class.getName());
RTImage(int w, int h, float pixelScale) {
if (Float.isNaN(pixelScale) || pixelScale <= 0 ||
Math.ceil(pixelScale) >= Integer.MAX_VALUE) {
throw new IllegalArgumentException("pixelScale out of range");
}
if (w <= 0 || h <= 0) {
throw new IllegalArgumentException("image size must be positive");
}
final int ps = (int) Math.ceil(pixelScale);
final int scale = Math.max(ps, 4);
final int maxSize = Integer.MAX_VALUE / scale;
if (maxSize / w <= h) {
throw new IllegalArgumentException("image size out of range");
}
width = w;
height = h;
this.pixelScale = pixelScale;
}
@Override
Image getImage() {
return Image.fromByteBgraPreData(
getPixelBuffer(),
getWidth(), getHeight());
}
@Override
Graphics getGraphics() {
RTTexture texture = getTexture();
if (texture == null) {
return null;
}
Graphics g = texture.createGraphics();
g.transform(PrismGraphicsManager.getPixelScaleTransform());
return g;
}
private RTTexture getTexture() {
if (txt != null && txt.isSurfaceLost()) {
log.fine("RTImage::getTexture : surface lost: " + this);
}
ResourceFactory f = GraphicsPipeline.getDefaultResourceFactory();
if (f == null || f.isDisposed()) {
log.fine("RTImage::getTexture : return null because device disposed or not ready");
return null;
}
if (txt == null) {
txt = f.createRTTexture(
(int) Math.ceil(width * pixelScale),
(int) Math.ceil(height * pixelScale),
Texture.WrapMode.CLAMP_NOT_NEEDED);
txt.contentsUseful();
txt.makePermanent();
if (registeredWithFactory == null || registeredWithFactory.get() != f) {
f.addFactoryListener(this);
registeredWithFactory = new WeakReference<>(f);
}
}
return txt;
}
@Override
void draw(Graphics g,
int dstx1, int dsty1, int dstx2, int dsty2,
int srcx1, int srcy1, int srcx2, int srcy2)
{
if (txt == null && g.getCompositeMode() == CompositeMode.SRC_OVER) {
return;
}
if (g.getResourceFactory().isDisposed()) {
log.fine("RTImage::draw : skip because device has been disposed");
return;
}
if (g instanceof PrinterGraphics) {
// We're printing. Copy [txt] into a J2DTexture and draw it.
int w = srcx2 - srcx1;
int h = srcy2 - srcy1;
final IntBuffer pixels = IntBuffer.allocate(w * h);
PrismInvoker.runOnRenderThread(() -> {
getTexture().readPixels(pixels);
});
Image img = Image.fromIntArgbPreData(pixels, w, h);
Texture t = g.getResourceFactory().createTexture(
img, Texture.Usage.STATIC, Texture.WrapMode.CLAMP_NOT_NEEDED);
g.drawTexture(t,
dstx1, dsty1, dstx2, dsty2,
0, 0, w, h);
t.dispose();
} else {
if (txt == null) {
Paint p = g.getPaint();
g.setPaint(Color.TRANSPARENT);
g.fillQuad(dstx1, dsty1, dstx2, dsty2);
g.setPaint(p);
} else {
g.drawTexture(txt,
dstx1, dsty1, dstx2, dsty2,
srcx1 * pixelScale, srcy1 * pixelScale,
srcx2 * pixelScale, srcy2 * pixelScale);
}
}
}
@Override
void dispose() {
PrismInvoker.invokeOnRenderThread(() -> {
if (txt != null) {
txt.dispose();
txt = null;
}
});
}
@Override
public int getWidth() {
return width;
}
@Override
public int getHeight() {
return height;
}
@Override
public ByteBuffer getPixelBuffer() {
boolean isNew = false;
if (pixelBuffer == null) {
pixelBuffer = ByteBuffer.allocateDirect(width*height*4);
if (pixelBuffer != null) {
pixelBuffer.order(ByteOrder.nativeOrder());
isNew = true;
}
}
if (isNew || isDirty()) {
PrismInvoker.runOnRenderThread(() -> {
final ResourceFactory f = GraphicsPipeline.getDefaultResourceFactory();
if (f == null || f.isDisposed()) {
log.fine("RTImage::getPixelBuffer : skip because device disposed or not ready");
return;
}
flushRQ();
if (txt != null && pixelBuffer != null) {
PixelFormat pf = txt.getPixelFormat();
if (pf != PixelFormat.INT_ARGB_PRE &&
pf != PixelFormat.BYTE_BGRA_PRE) {
throw new AssertionError("Unexpected pixel format: " + pf);
}
RTTexture t = txt;
if (pixelScale != 1.0f) {
// Convert [txt] to a texture the size of the image
t = f.createRTTexture(width, height, Texture.WrapMode.CLAMP_NOT_NEEDED);
Graphics g = t.createGraphics();
g.drawTexture(txt, 0, 0, width, height,
0, 0, width * pixelScale, height * pixelScale);
}
pixelBuffer.rewind();
int[] pixels = t.getPixels();
if (pixels != null) {
pixelBuffer.asIntBuffer().put(pixels);
} else {
t.readPixels(pixelBuffer);
}
if (t != txt) {
t.dispose();
}
}
});
}
return pixelBuffer;
}
// This method is called from native [ImageBufferData::update]
// while lazy painting procedure
@Override
protected void drawPixelBuffer() {
PrismInvoker.invokeOnRenderThread(new Runnable() {
@Override
public void run() {
//[g] field can be null if it is the first paint
//from synthetic ImageData or if the resource factory is disposed
Graphics g = getGraphics();
if (g != null && pixelBuffer != null) {
pixelBuffer.rewind();//critical!
Image img = Image.fromByteBgraPreData(
pixelBuffer,
width,
height);
Texture txt = g.getResourceFactory().createTexture(img, Texture.Usage.DEFAULT, Texture.WrapMode.CLAMP_NOT_NEEDED);
g.clear();
g.drawTexture(txt, 0, 0, width, height);
txt.dispose();
}
}
});
}
@Override public void factoryReset() {
if (txt != null) {
txt.dispose();
txt = null;
}
}
@Override public void factoryReleased() {
if (txt != null) {
txt.dispose();
txt = null;
}
}
@Override
public float getPixelScale() {
return pixelScale;
}
}
