/* * Copyright (c) 2019, 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.metal; import sun.awt.SunHints; import sun.awt.image.PixelConverter; import sun.java2d.SunGraphics2D; import sun.java2d.SurfaceData; import sun.java2d.SurfaceDataProxy; import sun.java2d.loops.CompositeType; import sun.java2d.loops.GraphicsPrimitive; import sun.java2d.loops.MaskFill; import sun.java2d.loops.SurfaceType; import sun.java2d.pipe.ParallelogramPipe; import sun.java2d.pipe.PixelToParallelogramConverter; import sun.java2d.pipe.RenderBuffer; import sun.java2d.pipe.TextPipe; import sun.java2d.pipe.hw.AccelSurface; import sun.lwawt.macosx.CPlatformView; import java.awt.*; import java.awt.image.ColorModel; import java.awt.image.Raster; import static sun.java2d.metal.MTLContext.MTLContextCaps.CAPS_EXT_LCD_SHADER; import static sun.java2d.metal.MTLContext.MTLContextCaps.CAPS_EXT_TEXRECT; import static sun.java2d.pipe.BufferedOpCodes.FLUSH_SURFACE; import static sun.java2d.pipe.BufferedOpCodes.SWAP_BUFFERS; import static sun.java2d.pipe.hw.ContextCapabilities.*; public abstract class MTLSurfaceData extends SurfaceData implements AccelSurface { /** * Pixel formats */ public static final int PF_INT_ARGB = 0; public static final int PF_INT_ARGB_PRE = 1; public static final int PF_INT_RGB = 2; public static final int PF_INT_RGBX = 3; public static final int PF_INT_BGR = 4; public static final int PF_INT_BGRX = 5; public static final int PF_USHORT_565_RGB = 6; public static final int PF_USHORT_555_RGB = 7; public static final int PF_USHORT_555_RGBX = 8; public static final int PF_BYTE_GRAY = 9; public static final int PF_USHORT_GRAY = 10; public static final int PF_3BYTE_BGR = 11; /** * SurfaceTypes */ private static final String DESC_MTL_SURFACE = "MTL Surface"; private static final String DESC_MTL_SURFACE_RTT = "MTL Surface (render-to-texture)"; private static final String DESC_MTL_TEXTURE = "MTL Texture"; static final SurfaceType MTLSurface = SurfaceType.Any.deriveSubType(DESC_MTL_SURFACE, PixelConverter.ArgbPre.instance); static final SurfaceType MTLSurfaceRTT = MTLSurface.deriveSubType(DESC_MTL_SURFACE_RTT); static final SurfaceType MTLTexture = SurfaceType.Any.deriveSubType(DESC_MTL_TEXTURE); protected static MTLRenderer mtlRenderPipe; protected static PixelToParallelogramConverter mtlTxRenderPipe; protected static ParallelogramPipe mtlAAPgramPipe; protected static MTLTextRenderer mtlTextPipe; protected static MTLDrawImage mtlImagePipe; /** This will be true if the fbobject system property has been enabled. */ private static boolean isFBObjectEnabled; /** This will be true if the lcdshader system property has been enabled.*/ private static boolean isLCDShaderEnabled; /** This will be true if the biopshader system property has been enabled.*/ private static boolean isBIOpShaderEnabled; /** This will be true if the gradshader system property has been enabled.*/ private static boolean isGradShaderEnabled; static { if (!GraphicsEnvironment.isHeadless()) { // fbobject currently enabled by default; use "false" to disable String fbo = java.security.AccessController.doPrivileged( new sun.security.action.GetPropertyAction( "java2d.metal.fbobject")); isFBObjectEnabled = !"false".equals(fbo); // lcdshader currently enabled by default; use "false" to disable String lcd = java.security.AccessController.doPrivileged( new sun.security.action.GetPropertyAction( "java2d.metal.lcdshader")); isLCDShaderEnabled = !"false".equals(lcd); // biopshader currently enabled by default; use "false" to disable String biop = java.security.AccessController.doPrivileged( new sun.security.action.GetPropertyAction( "java2d.metal.biopshader")); isBIOpShaderEnabled = !"false".equals(biop); // gradshader currently enabled by default; use "false" to disable String grad = java.security.AccessController.doPrivileged( new sun.security.action.GetPropertyAction( "java2d.metal.gradshader")); isGradShaderEnabled = !"false".equals(grad); MTLRenderQueue rq = MTLRenderQueue.getInstance(); mtlImagePipe = new MTLDrawImage(); mtlTextPipe = new MTLTextRenderer(rq); mtlRenderPipe = new MTLRenderer(rq); if (GraphicsPrimitive.tracingEnabled()) { mtlTextPipe = mtlTextPipe.traceWrap(); //The wrapped mtlRenderPipe will wrap the AA pipe as well... //mtlAAPgramPipe = mtlRenderPipe.traceWrap(); } mtlAAPgramPipe = mtlRenderPipe.getAAParallelogramPipe(); mtlTxRenderPipe = new PixelToParallelogramConverter(mtlRenderPipe, mtlRenderPipe, 1.0, 0.25, true); MTLBlitLoops.register(); MTLMaskFill.register(); MTLMaskBlit.register(); } } protected final int scale; protected final int width; protected final int height; protected CPlatformView pView; protected int type; private MTLGraphicsConfig graphicsConfig; // these fields are set from the native code when the surface is // initialized private int nativeWidth; private int nativeHeight; /** * Returns the appropriate SurfaceType corresponding to the given OpenGL * surface type constant (e.g. TEXTURE -> MTLTexture). */ private static SurfaceType getCustomSurfaceType(int oglType) { switch (oglType) { case TEXTURE: return MTLTexture; case RT_TEXTURE: return MTLSurfaceRTT; default: return MTLSurface; } } static void swapBuffers(long window) { MTLRenderQueue rq = MTLRenderQueue.getInstance(); rq.lock(); try { RenderBuffer buf = rq.getBuffer(); rq.ensureCapacityAndAlignment(12, 4); buf.putInt(SWAP_BUFFERS); buf.putLong(window); rq.flushNow(); } finally { rq.unlock(); } } native void validate(int xoff, int yoff, int width, int height, boolean isOpaque); private native void initOps(long pConfigInfo, long pPeerData, long layerPtr, int xoff, int yoff, boolean isOpaque); protected MTLSurfaceData(MTLGraphicsConfig gc, ColorModel cm, int type, int width, int height) { super(getCustomSurfaceType(type), cm); this.graphicsConfig = gc; this.type = type; setBlitProxyKey(gc.getProxyKey()); // TEXTURE shouldn't be scaled, it is used for managed BufferedImages. scale = type == TEXTURE ? 1 : gc.getDevice().getScaleFactor(); this.width = width * scale; this.height = height * scale; } protected MTLSurfaceData(CPlatformView pView, MTLGraphicsConfig gc, ColorModel cm, int type, int width, int height) { this(gc, cm, type, width, height); this.pView = pView; this.graphicsConfig = gc; long pConfigInfo = gc.getNativeConfigInfo(); long pPeerData = 0L; boolean isOpaque = true; if (pView != null) { pPeerData = pView.getAWTView(); isOpaque = pView.isOpaque(); } MTLGraphicsConfig.refPConfigInfo(pConfigInfo); initOps(pConfigInfo, pPeerData, 0, 0, 0, isOpaque); } protected MTLSurfaceData(MTLLayer layer, MTLGraphicsConfig gc, ColorModel cm, int type, int width, int height) { this(gc, cm, type, width, height); this.graphicsConfig = gc; long pConfigInfo = gc.getNativeConfigInfo(); long layerPtr = 0L; boolean isOpaque = true; if (layer != null) { layerPtr = layer.getPointer(); isOpaque = layer.isOpaque(); } MTLGraphicsConfig.refPConfigInfo(pConfigInfo); initOps(pConfigInfo, 0, layerPtr, 0, 0, isOpaque); } @Override //SurfaceData public GraphicsConfiguration getDeviceConfiguration() { return graphicsConfig; } /** * Creates a SurfaceData object representing the primary (front) buffer of * an on-screen Window. */ public static MTLWindowSurfaceData createData(CPlatformView pView) { MTLGraphicsConfig gc = getGC(pView); return new MTLWindowSurfaceData(pView, gc); } /** * Creates a SurfaceData object representing the intermediate buffer * between the Java2D flusher thread and the AppKit thread. */ public static MTLLayerSurfaceData createData(MTLLayer layer) { MTLGraphicsConfig gc = getGC(layer); Rectangle r = layer.getBounds(); return new MTLLayerSurfaceData(layer, gc, r.width, r.height); } /** * Creates a SurfaceData object representing the back buffer of a * double-buffered on-screen Window. */ public static MTLOffScreenSurfaceData createData(CPlatformView pView, Image image, int type) { MTLGraphicsConfig gc = getGC(pView); Rectangle r = pView.getBounds(); if (type == FLIP_BACKBUFFER) { return new MTLOffScreenSurfaceData(pView, gc, r.width, r.height, image, gc.getColorModel(), FLIP_BACKBUFFER); } else { return new MTLVSyncOffScreenSurfaceData(pView, gc, r.width, r.height, image, gc.getColorModel(), type); } } /** * Creates a SurfaceData object representing an off-screen buffer (either a * FBO or Texture). */ public static MTLOffScreenSurfaceData createData(MTLGraphicsConfig gc, int width, int height, ColorModel cm, Image image, int type) { return new MTLOffScreenSurfaceData(null, gc, width, height, image, cm, type); } public static MTLGraphicsConfig getGC(CPlatformView pView) { if (pView != null) { return (MTLGraphicsConfig)pView.getGraphicsConfiguration(); } else { // REMIND: this should rarely (never?) happen, but what if // default config is not CGL? GraphicsEnvironment env = GraphicsEnvironment .getLocalGraphicsEnvironment(); GraphicsDevice gd = env.getDefaultScreenDevice(); return (MTLGraphicsConfig) gd.getDefaultConfiguration(); } } public static MTLGraphicsConfig getGC(MTLLayer layer) { return (MTLGraphicsConfig)layer.getGraphicsConfiguration(); } public void validate() { // Overridden in MTLWindowSurfaceData below } @Override public double getDefaultScaleX() { return scale; } @Override public double getDefaultScaleY() { return scale; } protected native void clearWindow(); protected native boolean initTexture(long pData, boolean isOpaque, boolean texNonPow2, boolean texRect, int width, int height); protected native boolean initRTexture(long pData, boolean isOpaque, boolean texNonPow2, boolean texRect, int width, int height); protected native boolean initFlipBackbuffer(long pData); @Override public SurfaceDataProxy makeProxyFor(SurfaceData srcData) { return MTLSurfaceDataProxy.createProxy(srcData, graphicsConfig); } /** * Note: This should only be called from the QFT under the AWT lock. * This method is kept separate from the initSurface() method below just * to keep the code a bit cleaner. */ private void initSurfaceNow(int width, int height) { boolean isOpaque = (getTransparency() == Transparency.OPAQUE); boolean success = false; switch (type) { case TEXTURE: success = initTexture(getNativeOps(), isOpaque, isTexNonPow2Available(), isTexRectAvailable(), width, height); break; case RT_TEXTURE: success = initRTexture(getNativeOps(), isOpaque, isTexNonPow2Available(), isTexRectAvailable(), width, height); break; case FLIP_BACKBUFFER: success = initFlipBackbuffer(getNativeOps()); break; default: break; } if (!success) { throw new OutOfMemoryError("can't create offscreen surface"); } } /** * Initializes the appropriate OpenGL offscreen surface based on the value * of the type parameter. If the surface creation fails for any reason, * an OutOfMemoryError will be thrown. */ protected void initSurface(final int width, final int height) { MTLRenderQueue rq = MTLRenderQueue.getInstance(); rq.lock(); try { switch (type) { case TEXTURE: case RT_TEXTURE: // need to make sure the context is current before // creating the texture or fbobject MTLContext.setScratchSurface(graphicsConfig); break; default: break; } rq.flushAndInvokeNow(new Runnable() { public void run() { initSurfaceNow(width, height); } }); } finally { rq.unlock(); } } /** * Returns the MTLContext for the GraphicsConfig associated with this * surface. */ public final MTLContext getContext() { return graphicsConfig.getContext(); } /** * Returns the MTLGraphicsConfig associated with this surface. */ final MTLGraphicsConfig getMTLGraphicsConfig() { return graphicsConfig; } /** * Returns one of the surface type constants defined above. */ public final int getType() { return type; } /** * For now, we can only render LCD text if: * - the fragment shader extension is available, and * - the source color is opaque, and * - blending is SrcOverNoEa or disabled * - and the destination is opaque * * Eventually, we could enhance the native OGL text rendering code * and remove the above restrictions, but that would require significantly * more code just to support a few uncommon cases. */ public boolean canRenderLCDText(SunGraphics2D sg2d) { return graphicsConfig.isCapPresent(CAPS_EXT_LCD_SHADER) && sg2d.surfaceData.getTransparency() == Transparency.OPAQUE && sg2d.paintState <= SunGraphics2D.PAINT_OPAQUECOLOR && (sg2d.compositeState <= SunGraphics2D.COMP_ISCOPY || (sg2d.compositeState <= SunGraphics2D.COMP_ALPHA && canHandleComposite(sg2d.composite))); } private boolean canHandleComposite(Composite c) { if (c instanceof AlphaComposite) { AlphaComposite ac = (AlphaComposite)c; return ac.getRule() == AlphaComposite.SRC_OVER && ac.getAlpha() >= 1f; } return false; } public void validatePipe(SunGraphics2D sg2d) { TextPipe textpipe; boolean validated = false; // MTLTextRenderer handles both AA and non-AA text, but // only works with the following modes: // (Note: For LCD text we only enter this code path if // canRenderLCDText() has already validated that the mode is // CompositeType.SrcNoEa (opaque color), which will be subsumed // by the CompositeType.SrcNoEa (any color) test below.) if (/* CompositeType.SrcNoEa (any color) */ (sg2d.compositeState <= SunGraphics2D.COMP_ISCOPY && sg2d.paintState <= SunGraphics2D.PAINT_ALPHACOLOR) || /* CompositeType.SrcOver (any color) */ (sg2d.compositeState == SunGraphics2D.COMP_ALPHA && sg2d.paintState <= SunGraphics2D.PAINT_ALPHACOLOR && (((AlphaComposite)sg2d.composite).getRule() == AlphaComposite.SRC_OVER)) || /* CompositeType.Xor (any color) */ (sg2d.compositeState == SunGraphics2D.COMP_XOR && sg2d.paintState <= SunGraphics2D.PAINT_ALPHACOLOR)) { textpipe = mtlTextPipe; } else { // do this to initialize textpipe correctly; we will attempt // to override the non-text pipes below super.validatePipe(sg2d); textpipe = sg2d.textpipe; validated = true; } PixelToParallelogramConverter txPipe = null; MTLRenderer nonTxPipe = null; if (sg2d.antialiasHint != SunHints.INTVAL_ANTIALIAS_ON) { if (sg2d.paintState <= SunGraphics2D.PAINT_ALPHACOLOR) { if (sg2d.compositeState <= SunGraphics2D.COMP_XOR) { txPipe = mtlTxRenderPipe; nonTxPipe = mtlRenderPipe; } } else if (sg2d.compositeState <= SunGraphics2D.COMP_ALPHA) { if (MTLPaints.isValid(sg2d)) { txPipe = mtlTxRenderPipe; nonTxPipe = mtlRenderPipe; } // custom paints handled by super.validatePipe() below } } else { if (sg2d.paintState <= SunGraphics2D.PAINT_ALPHACOLOR) { if (graphicsConfig.isCapPresent(CAPS_PS30) && (sg2d.imageComp == CompositeType.SrcOverNoEa || sg2d.imageComp == CompositeType.SrcOver)) { if (!validated) { super.validatePipe(sg2d); validated = true; } PixelToParallelogramConverter aaConverter = new PixelToParallelogramConverter(sg2d.shapepipe, mtlAAPgramPipe, 1.0/8.0, 0.499, false); sg2d.drawpipe = aaConverter; sg2d.fillpipe = aaConverter; sg2d.shapepipe = aaConverter; } else if (sg2d.compositeState == SunGraphics2D.COMP_XOR) { // install the solid pipes when AA and XOR are both enabled txPipe = mtlTxRenderPipe; nonTxPipe = mtlRenderPipe; } } // other cases handled by super.validatePipe() below } if (txPipe != null) { if (sg2d.transformState >= SunGraphics2D.TRANSFORM_TRANSLATESCALE) { sg2d.drawpipe = txPipe; sg2d.fillpipe = txPipe; } else if (sg2d.strokeState != SunGraphics2D.STROKE_THIN) { sg2d.drawpipe = txPipe; sg2d.fillpipe = nonTxPipe; } else { sg2d.drawpipe = nonTxPipe; sg2d.fillpipe = nonTxPipe; } // Note that we use the transforming pipe here because it // will examine the shape and possibly perform an optimized // operation if it can be simplified. The simplifications // will be valid for all STROKE and TRANSFORM types. sg2d.shapepipe = txPipe; } else { if (!validated) { super.validatePipe(sg2d); } } // install the text pipe based on our earlier decision sg2d.textpipe = textpipe; // always override the image pipe with the specialized OGL pipe sg2d.imagepipe = mtlImagePipe; } @Override protected MaskFill getMaskFill(SunGraphics2D sg2d) { if (sg2d.paintState > SunGraphics2D.PAINT_ALPHACOLOR) { /* * We can only accelerate non-Color MaskFill operations if * all of the following conditions hold true: * - there is an implementation for the given paintState * - the current Paint can be accelerated for this destination * - multitexturing is available (since we need to modulate * the alpha mask texture with the paint texture) * * In all other cases, we return null, in which case the * validation code will choose a more general software-based loop. */ if (!MTLPaints.isValid(sg2d) || !graphicsConfig.isCapPresent(CAPS_MULTITEXTURE)) { return null; } } return super.getMaskFill(sg2d); } public void flush() { invalidate(); MTLRenderQueue rq = MTLRenderQueue.getInstance(); rq.lock(); try { // make sure we have a current context before // disposing the native resources (e.g. texture object) MTLContext.setScratchSurface(graphicsConfig); RenderBuffer buf = rq.getBuffer(); rq.ensureCapacityAndAlignment(12, 4); buf.putInt(FLUSH_SURFACE); buf.putLong(getNativeOps()); // this call is expected to complete synchronously, so flush now rq.flushNow(); } finally { rq.unlock(); } } /** * Returns true if OpenGL textures can have non-power-of-two dimensions * when using the basic GL_TEXTURE_2D target. */ boolean isTexNonPow2Available() { return graphicsConfig.isCapPresent(CAPS_TEXNONPOW2); } /** * Returns true if OpenGL textures can have non-power-of-two dimensions * when using the GL_TEXTURE_RECTANGLE_ARB target (only available when the * GL_ARB_texture_rectangle extension is present). */ boolean isTexRectAvailable() { return graphicsConfig.isCapPresent(CAPS_EXT_TEXRECT); } /** * Returns true if the surface is an on-screen window surface or * a FBO texture attached to an on-screen CALayer. * * Needed by Mac OS X port. */ public boolean isOnScreen() { return getType() == WINDOW; } private native int getTextureTarget(long pData); private native int getTextureID(long pData); /** * If this surface is backed by a texture object, returns the target * for that texture (either GL_TEXTURE_2D or GL_TEXTURE_RECTANGLE_ARB). * Otherwise, this method will return zero. */ public final int getTextureTarget() { return getTextureTarget(getNativeOps()); } /** * If this surface is backed by a texture object, returns the texture ID * for that texture. * Otherwise, this method will return zero. */ public final int getTextureID() { return getTextureID(getNativeOps()); } /** * Returns native resource of specified {@code resType} associated with * this surface. * * Specifically, for {@code MTLSurfaceData} this method returns the * the following: * 
     * TEXTURE              - texture id
     *
* * Note: the resource returned by this method is only valid on the rendering * thread. * * @return native resource of specified type or 0L if * such resource doesn't exist or can not be retrieved. * @see AccelSurface#getNativeResource */ public long getNativeResource(int resType) { if (resType == TEXTURE) { return getTextureID(); } return 0L; } public Raster getRaster(int x, int y, int w, int h) { throw new InternalError("not implemented yet"); } @Override public boolean copyArea(SunGraphics2D sg2d, int x, int y, int w, int h, int dx, int dy) { if (sg2d.compositeState >= SunGraphics2D.COMP_XOR) { return false; } mtlRenderPipe.copyArea(sg2d, x, y, w, h, dx, dy); return true; } public Rectangle getNativeBounds() { MTLRenderQueue rq = MTLRenderQueue.getInstance(); rq.lock(); try { return new Rectangle(nativeWidth, nativeHeight); } finally { rq.unlock(); } } public static class MTLWindowSurfaceData extends MTLSurfaceData { public MTLWindowSurfaceData(CPlatformView pView, MTLGraphicsConfig gc) { super(pView, gc, gc.getColorModel(), WINDOW, 0, 0); } @Override public SurfaceData getReplacement() { return pView.getSurfaceData(); } @Override public Rectangle getBounds() { Rectangle r = pView.getBounds(); return new Rectangle(0, 0, r.width, r.height); } /** * Returns destination Component associated with this SurfaceData. */ @Override public Object getDestination() { return pView.getDestination(); } public void validate() { MTLRenderQueue rq = MTLRenderQueue.getInstance(); rq.lock(); try { rq.flushAndInvokeNow(() -> { Rectangle peerBounds = pView.getBounds(); validate(0, 0, peerBounds.width, peerBounds.height, pView.isOpaque()); }); } finally { rq.unlock(); } } @Override public void invalidate() { super.invalidate(); clearWindow(); } } /** * A surface which implements an intermediate buffer between * the Java2D flusher thread and the AppKit thread. * * This surface serves as a buffer attached to a MTLLayer and * the layer redirects all painting to the buffer's graphics. */ public static class MTLLayerSurfaceData extends MTLSurfaceData { private MTLLayer layer; public MTLLayerSurfaceData(MTLLayer layer, MTLGraphicsConfig gc, int width, int height) { super(layer, gc, gc.getColorModel(), RT_TEXTURE, width, height); this.layer = layer; initSurface(this.width, this.height); } @Override public SurfaceData getReplacement() { return layer.getSurfaceData(); } @Override public boolean isOnScreen() { return true; } @Override public Rectangle getBounds() { return new Rectangle(width, height); } @Override public Object getDestination() { return layer.getDestination(); } @Override public int getTransparency() { return layer.getTransparency(); } @Override public void invalidate() { super.invalidate(); clearWindow(); } } /** * A surface which implements a v-synced flip back-buffer with COPIED * FlipContents. * * This surface serves as a back-buffer to the outside world, while it is * actually an offscreen surface. When the BufferStrategy this surface * belongs to is showed, it is first copied to the real private * FLIP_BACKBUFFER, which is then flipped. */ public static class MTLVSyncOffScreenSurfaceData extends MTLOffScreenSurfaceData { private MTLOffScreenSurfaceData flipSurface; public MTLVSyncOffScreenSurfaceData(CPlatformView pView, MTLGraphicsConfig gc, int width, int height, Image image, ColorModel cm, int type) { super(pView, gc, width, height, image, cm, type); flipSurface = MTLSurfaceData.createData(pView, image, FLIP_BACKBUFFER); } public SurfaceData getFlipSurface() { return flipSurface; } @Override public void flush() { flipSurface.flush(); super.flush(); } } public static class MTLOffScreenSurfaceData extends MTLSurfaceData { private Image offscreenImage; public MTLOffScreenSurfaceData(CPlatformView pView, MTLGraphicsConfig gc, int width, int height, Image image, ColorModel cm, int type) { super(pView, gc, cm, type, width, height); offscreenImage = image; initSurface(this.width, this.height); } @Override public SurfaceData getReplacement() { return restoreContents(offscreenImage); } @Override public Rectangle getBounds() { if (type == FLIP_BACKBUFFER) { Rectangle r = pView.getBounds(); return new Rectangle(0, 0, r.width, r.height); } else { return new Rectangle(width, height); } } /** * Returns destination Image associated with this SurfaceData. */ @Override public Object getDestination() { return offscreenImage; } } // additional cleanup private static native void destroyCGLContext(long ctx); public static void destroyOGLContext(long ctx) { if (ctx != 0L) { destroyCGLContext(ctx); } } public static void dispose(long pData, long pConfigInfo) { MTLGraphicsConfig.deRefPConfigInfo(pConfigInfo); } }