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/*
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* 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 sun.java2d.opengl;
import java.awt.AWTException;
import java.awt.AWTError;
import java.awt.BufferCapabilities;
import java.awt.Component;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.ImageCapabilities;
import java.awt.Rectangle;
import java.awt.Transparency;
import java.awt.color.ColorSpace;
import java.awt.image.BufferedImage;
import java.awt.image.ColorModel;
import java.awt.image.DataBuffer;
import java.awt.image.DirectColorModel;
import java.awt.image.VolatileImage;
import java.awt.image.WritableRaster;
import java.util.HashMap;
import java.util.concurrent.Callable;
import sun.awt.CGraphicsConfig;
import sun.awt.CGraphicsDevice;
import sun.awt.image.OffScreenImage;
import sun.awt.image.SunVolatileImage;
import sun.java2d.Disposer;
import sun.java2d.DisposerRecord;
import sun.java2d.Surface;
import sun.java2d.SurfaceData;
import sun.java2d.opengl.OGLContext.OGLContextCaps;
import sun.java2d.pipe.hw.AccelSurface;
import sun.java2d.pipe.hw.AccelTypedVolatileImage;
import sun.java2d.pipe.hw.ContextCapabilities;
import static sun.java2d.opengl.OGLSurfaceData.*;
import static sun.java2d.opengl.OGLContext.OGLContextCaps.*;
import sun.java2d.pipe.hw.AccelDeviceEventListener;
import sun.java2d.pipe.hw.AccelDeviceEventNotifier;
import sun.lwawt.LWComponentPeer;
import sun.lwawt.macosx.CPlatformView;
import sun.lwawt.macosx.CThreading;
import java.security.PrivilegedAction;
public final class CGLGraphicsConfig extends CGraphicsConfig
implements OGLGraphicsConfig
{
//private static final int kOpenGLSwapInterval =
// RuntimeOptions.getCurrentOptions().OpenGLSwapInterval;
private static final int kOpenGLSwapInterval = 0; // TODO
private static boolean cglAvailable;
private static ImageCapabilities imageCaps = new CGLImageCaps();
private int pixfmt;
private BufferCapabilities bufferCaps;
private long pConfigInfo;
private ContextCapabilities oglCaps;
private OGLContext context;
private final Object disposerReferent = new Object();
private final int maxTextureSize;
private static native boolean initCGL();
private static native long getCGLConfigInfo(int displayID, int visualnum,
int swapInterval);
private static native int getOGLCapabilities(long configInfo);
private static final HashMap<Long, Integer> pGCRefCounts = new HashMap<>();
/**
* Returns GL_MAX_TEXTURE_SIZE from the shared opengl context. Must be
* called under OGLRQ lock, because this method change current context.
*
* @return GL_MAX_TEXTURE_SIZE
*/
private static native int nativeGetMaxTextureSize();
static {
cglAvailable = initCGL();
}
private CGLGraphicsConfig(CGraphicsDevice device, int pixfmt,
long configInfo, int maxTextureSize,
ContextCapabilities oglCaps) {
super(device);
this.pixfmt = pixfmt;
this.pConfigInfo = configInfo;
this.oglCaps = oglCaps;
this.maxTextureSize = maxTextureSize;
context = new OGLContext(OGLRenderQueue.getInstance(), this);
refPConfigInfo(pConfigInfo);
// add a record to the Disposer so that we destroy the native
// CGLGraphicsConfigInfo data when this object goes away
Disposer.addRecord(disposerReferent,
new CGLGCDisposerRecord(pConfigInfo));
}
@Override
public Object getProxyKey() {
return this;
}
@Override
public SurfaceData createManagedSurface(int w, int h, int transparency) {
return CGLSurfaceData.createData(this, w, h,
getColorModel(transparency),
null,
OGLSurfaceData.TEXTURE);
}
public static CGLGraphicsConfig getConfig(CGraphicsDevice device,
int pixfmt)
{
if (!cglAvailable) {
return null;
}
// Move CGLGraphicsConfig creation code to AppKit thread in order to avoid the
// following deadlock:
// 1) CGLGraphicsConfig.getCGLConfigInfo (called from EDT) takes RenderQueue.lock
// 2) CGLLayer.drawInCGLContext is invoked on AppKit thread and
// blocked on RenderQueue.lock
// 1) invokes native block on AppKit and wait
Callable<CGLGraphicsConfig> command = () -> {
long cfginfo;
int textureSize = 0;
final String ids[] = new String[1];
OGLRenderQueue rq = OGLRenderQueue.getInstance();
rq.lock();
try {
// getCGLConfigInfo() creates and destroys temporary
// surfaces/contexts, so we should first invalidate the current
// Java-level context and flush the queue...
OGLContext.invalidateCurrentContext();
cfginfo = getCGLConfigInfo(device.getCGDisplayID(), pixfmt,
kOpenGLSwapInterval);
if (cfginfo != 0L) {
textureSize = nativeGetMaxTextureSize();
// 7160609: GL still fails to create a square texture of this
// size. Half should be safe enough.
// Explicitly not support a texture more than 2^14, see 8010999.
textureSize = textureSize <= 16384 ? textureSize / 2 : 8192;
OGLContext.setScratchSurface(cfginfo);
rq.flushAndInvokeNow(() -> ids[0] = OGLContext.getOGLIdString());
}
} finally {
rq.unlock();
}
if (cfginfo == 0) {
return null;
}
int oglCaps = getOGLCapabilities(cfginfo);
ContextCapabilities caps = new OGLContextCaps(oglCaps, ids[0]);
return new CGLGraphicsConfig(
device, pixfmt, cfginfo, textureSize, caps);
};
return java.security.AccessController.doPrivileged(
(PrivilegedAction<CGLGraphicsConfig>) () -> {
try {
return CThreading.executeOnAppKit(command);
} catch (Throwable throwable) {
throw new AWTError(throwable.getMessage());
}
});
}
static void refPConfigInfo(long pConfigInfo) {
synchronized (pGCRefCounts) {
Integer count = pGCRefCounts.get(pConfigInfo);
if (count == null) {
count = 1;
}
else {
count++;
}
pGCRefCounts.put(pConfigInfo, count);
}
}
static void deRefPConfigInfo(long pConfigInfo) {
synchronized (pGCRefCounts) {
Integer count = pGCRefCounts.get(pConfigInfo);
if (count != null) {
count--;
pGCRefCounts.put(pConfigInfo, count);
if (count == 0) {
OGLRenderQueue.disposeGraphicsConfig(pConfigInfo);
pGCRefCounts.remove(pConfigInfo);
}
}
}
}
public static boolean isCGLAvailable() {
return cglAvailable;
}
/**
* Returns true if the provided capability bit is present for this config.
* See OGLContext.java for a list of supported capabilities.
*/
@Override
public boolean isCapPresent(int cap) {
return ((oglCaps.getCaps() & cap) != 0);
}
@Override
public long getNativeConfigInfo() {
return pConfigInfo;
}
/**
* {@inheritDoc}
*
* @see sun.java2d.pipe.hw.BufferedContextProvider#getContext
*/
@Override
public OGLContext getContext() {
return context;
}
@Override
public BufferedImage createCompatibleImage(int width, int height) {
ColorModel model = new DirectColorModel(24, 0xff0000, 0xff00, 0xff);
WritableRaster
raster = model.createCompatibleWritableRaster(width, height);
return new BufferedImage(model, raster, model.isAlphaPremultiplied(),
null);
}
@Override
public ColorModel getColorModel(int transparency) {
switch (transparency) {
case Transparency.OPAQUE:
// REMIND: once the ColorModel spec is changed, this should be
// an opaque premultiplied DCM...
return new DirectColorModel(24, 0xff0000, 0xff00, 0xff);
case Transparency.BITMASK:
return new DirectColorModel(25, 0xff0000, 0xff00, 0xff, 0x1000000);
case Transparency.TRANSLUCENT:
ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_sRGB);
return new DirectColorModel(cs, 32,
0xff0000, 0xff00, 0xff, 0xff000000,
true, DataBuffer.TYPE_INT);
default:
return null;
}
}
public boolean isDoubleBuffered() {
return isCapPresent(CAPS_DOUBLEBUFFERED);
}
private static class CGLGCDisposerRecord implements DisposerRecord {
private long pCfgInfo;
public CGLGCDisposerRecord(long pCfgInfo) {
this.pCfgInfo = pCfgInfo;
}
public void dispose() {
if (pCfgInfo != 0) {
deRefPConfigInfo(pCfgInfo);
pCfgInfo = 0;
}
}
}
// TODO: CGraphicsConfig doesn't implement displayChanged() yet
//@Override
public synchronized void displayChanged() {
//super.displayChanged();
// the context could hold a reference to a CGLSurfaceData, which in
// turn has a reference back to this CGLGraphicsConfig, so in order
// for this instance to be disposed we need to break the connection
OGLRenderQueue rq = OGLRenderQueue.getInstance();
rq.lock();
try {
OGLContext.invalidateCurrentContext();
} finally {
rq.unlock();
}
}
@Override
public String toString() {
int displayID = getDevice().getCGDisplayID();
return ("CGLGraphicsConfig[dev="+displayID+",pixfmt="+pixfmt+"]");
}
@Override
public SurfaceData createSurfaceData(CPlatformView pView) {
return CGLSurfaceData.createData(pView);
}
@Override
public SurfaceData createSurfaceData(CGLLayer layer) {
return CGLSurfaceData.createData(layer);
}
@Override
public Image createAcceleratedImage(Component target,
int width, int height)
{
ColorModel model = getColorModel(Transparency.OPAQUE);
WritableRaster wr = model.createCompatibleWritableRaster(width, height);
return new OffScreenImage(target, model, wr,
model.isAlphaPremultiplied());
}
@Override
public void assertOperationSupported(final int numBuffers,
final BufferCapabilities caps)
throws AWTException {
// Assume this method is never called with numBuffers != 2, as 0 is
// unsupported, and 1 corresponds to a SingleBufferStrategy which
// doesn't depend on the peer. Screen is considered as a separate
// "buffer".
if (numBuffers != 2) {
throw new AWTException("Only double buffering is supported");
}
final BufferCapabilities configCaps = getBufferCapabilities();
if (!configCaps.isPageFlipping()) {
throw new AWTException("Page flipping is not supported");
}
if (caps.getFlipContents() == BufferCapabilities.FlipContents.PRIOR) {
throw new AWTException("FlipContents.PRIOR is not supported");
}
}
@Override
public Image createBackBuffer(final LWComponentPeer<?, ?> peer) {
final Rectangle r = peer.getBounds();
// It is possible for the component to have size 0x0, adjust it to
// be at least 1x1 to avoid IAE
final int w = Math.max(1, r.width);
final int h = Math.max(1, r.height);
final int transparency = peer.isTranslucent() ? Transparency.TRANSLUCENT
: Transparency.OPAQUE;
return new SunVolatileImage(this, w, h, transparency, null);
}
@Override
public void destroyBackBuffer(final Image backBuffer) {
if (backBuffer != null) {
backBuffer.flush();
}
}
@Override
public void flip(final LWComponentPeer<?, ?> peer, final Image backBuffer,
final int x1, final int y1, final int x2, final int y2,
final BufferCapabilities.FlipContents flipAction) {
final Graphics g = peer.getGraphics();
try {
g.drawImage(backBuffer, x1, y1, x2, y2, x1, y1, x2, y2, null);
} finally {
g.dispose();
}
if (flipAction == BufferCapabilities.FlipContents.BACKGROUND) {
final Graphics2D bg = (Graphics2D) backBuffer.getGraphics();
try {
bg.setBackground(peer.getBackground());
bg.clearRect(0, 0, backBuffer.getWidth(null),
backBuffer.getHeight(null));
} finally {
bg.dispose();
}
}
}
private static class CGLBufferCaps extends BufferCapabilities {
public CGLBufferCaps(boolean dblBuf) {
super(imageCaps, imageCaps,
dblBuf ? FlipContents.UNDEFINED : null);
}
}
@Override
public BufferCapabilities getBufferCapabilities() {
if (bufferCaps == null) {
bufferCaps = new CGLBufferCaps(isDoubleBuffered());
}
return bufferCaps;
}
private static class CGLImageCaps extends ImageCapabilities {
private CGLImageCaps() {
super(true);
}
public boolean isTrueVolatile() {
return true;
}
}
@Override
public ImageCapabilities getImageCapabilities() {
return imageCaps;
}
@Override
public VolatileImage createCompatibleVolatileImage(int width, int height,
int transparency,
int type) {
if (type == FLIP_BACKBUFFER || type == WINDOW || type == UNDEFINED ||
transparency == Transparency.BITMASK)
{
return null;
}
if (type == FBOBJECT) {
if (!isCapPresent(CAPS_EXT_FBOBJECT)) {
return null;
}
} else if (type == PBUFFER) {
boolean isOpaque = transparency == Transparency.OPAQUE;
if (!isOpaque && !isCapPresent(CAPS_STORED_ALPHA)) {
return null;
}
}
SunVolatileImage vi = new AccelTypedVolatileImage(this, width, height,
transparency, type);
Surface sd = vi.getDestSurface();
if (!(sd instanceof AccelSurface) ||
((AccelSurface)sd).getType() != type)
{
vi.flush();
vi = null;
}
return vi;
}
/**
* {@inheritDoc}
*
* @see sun.java2d.pipe.hw.AccelGraphicsConfig#getContextCapabilities
*/
@Override
public ContextCapabilities getContextCapabilities() {
return oglCaps;
}
@Override
public void addDeviceEventListener(AccelDeviceEventListener l) {
int displayID = getDevice().getCGDisplayID();
AccelDeviceEventNotifier.addListener(l, displayID);
}
@Override
public void removeDeviceEventListener(AccelDeviceEventListener l) {
AccelDeviceEventNotifier.removeListener(l);
}
@Override
public int getMaxTextureWidth() {
return Math.max(maxTextureSize / getDevice().getScaleFactor(),
getBounds().width);
}
@Override
public int getMaxTextureHeight() {
return Math.max(maxTextureSize / getDevice().getScaleFactor(),
getBounds().height);
}
}