| /* |
| * Copyright (c) 2003, 2008, 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.opengl; |
| |
| import java.awt.AlphaComposite; |
| import java.awt.GraphicsEnvironment; |
| import java.awt.Rectangle; |
| import java.awt.Transparency; |
| import java.awt.image.ColorModel; |
| import java.awt.image.Raster; |
| import sun.awt.SunHints; |
| import sun.awt.image.PixelConverter; |
| import sun.java2d.pipe.hw.AccelSurface; |
| 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 static sun.java2d.pipe.BufferedOpCodes.*; |
| import static sun.java2d.opengl.OGLContext.OGLContextCaps.*; |
| |
| /** |
| * This class describes an OpenGL "surface", that is, a region of pixels |
| * managed via OpenGL. An OGLSurfaceData can be tagged with one of three |
| * different SurfaceType objects for the purpose of registering loops, etc. |
| * This diagram shows the hierarchy of OGL SurfaceTypes: |
| * |
| * Any |
| * / \ |
| * OpenGLSurface OpenGLTexture |
| * | |
| * OpenGLSurfaceRTT |
| * |
| * OpenGLSurface |
| * This kind of surface can be rendered to using OpenGL APIs. It is also |
| * possible to copy an OpenGLSurface to another OpenGLSurface (or to itself). |
| * This is typically accomplished by calling MakeContextCurrent(dstSD, srcSD) |
| * and then calling glCopyPixels() (although there are other techniques to |
| * achieve the same goal). |
| * |
| * OpenGLTexture |
| * This kind of surface cannot be rendered to using OpenGL (in the same sense |
| * as in OpenGLSurface). However, it is possible to upload a region of pixels |
| * to an OpenGLTexture object via glTexSubImage2D(). One can also copy a |
| * surface of type OpenGLTexture to an OpenGLSurface by binding the texture |
| * to a quad and then rendering it to the destination surface (this process |
| * is known as "texture mapping"). |
| * |
| * OpenGLSurfaceRTT |
| * This kind of surface can be thought of as a sort of hybrid between |
| * OpenGLSurface and OpenGLTexture, in that one can render to this kind of |
| * surface as if it were of type OpenGLSurface, but the process of copying |
| * this kind of surface to another is more like an OpenGLTexture. (Note that |
| * "RTT" stands for "render-to-texture".) |
| * |
| * In addition to these SurfaceType variants, we have also defined some |
| * constants that describe in more detail the type of underlying OpenGL |
| * surface. This table helps explain the relationships between those |
| * "type" constants and their corresponding SurfaceType: |
| * |
| * OGL Type Corresponding SurfaceType |
| * -------- ------------------------- |
| * WINDOW OpenGLSurface |
| * PBUFFER OpenGLSurface |
| * TEXTURE OpenGLTexture |
| * FLIP_BACKBUFFER OpenGLSurface |
| * FBOBJECT OpenGLSurfaceRTT |
| */ |
| public abstract class OGLSurfaceData extends SurfaceData |
| implements AccelSurface { |
| |
| /** |
| * OGL-specific surface types |
| * |
| * @see sun.java2d.pipe.hw.AccelSurface |
| */ |
| public static final int PBUFFER = RT_PLAIN; |
| public static final int FBOBJECT = RT_TEXTURE; |
| |
| /** |
| * 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_OPENGL_SURFACE = "OpenGL Surface"; |
| private static final String DESC_OPENGL_SURFACE_RTT = |
| "OpenGL Surface (render-to-texture)"; |
| private static final String DESC_OPENGL_TEXTURE = "OpenGL Texture"; |
| |
| static final SurfaceType OpenGLSurface = |
| SurfaceType.Any.deriveSubType(DESC_OPENGL_SURFACE, |
| PixelConverter.ArgbPre.instance); |
| static final SurfaceType OpenGLSurfaceRTT = |
| OpenGLSurface.deriveSubType(DESC_OPENGL_SURFACE_RTT); |
| static final SurfaceType OpenGLTexture = |
| SurfaceType.Any.deriveSubType(DESC_OPENGL_TEXTURE); |
| |
| /** 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; |
| |
| private OGLGraphicsConfig graphicsConfig; |
| protected int type; |
| // these fields are set from the native code when the surface is |
| // initialized |
| private int nativeWidth, nativeHeight; |
| |
| protected static OGLRenderer oglRenderPipe; |
| protected static PixelToParallelogramConverter oglTxRenderPipe; |
| protected static ParallelogramPipe oglAAPgramPipe; |
| protected static OGLTextRenderer oglTextPipe; |
| protected static OGLDrawImage oglImagePipe; |
| |
| protected native boolean initTexture(long pData, |
| boolean isOpaque, boolean texNonPow2, |
| boolean texRect, |
| int width, int height); |
| protected native boolean initFBObject(long pData, |
| boolean isOpaque, boolean texNonPow2, |
| boolean texRect, |
| int width, int height); |
| protected native boolean initFlipBackbuffer(long pData); |
| protected abstract boolean initPbuffer(long pData, long pConfigInfo, |
| boolean isOpaque, |
| int width, int height); |
| |
| private native int getTextureTarget(long pData); |
| private native int getTextureID(long pData); |
| |
| static { |
| if (!GraphicsEnvironment.isHeadless()) { |
| // fbobject currently enabled by default; use "false" to disable |
| String fbo = (String)java.security.AccessController.doPrivileged( |
| new sun.security.action.GetPropertyAction( |
| "sun.java2d.opengl.fbobject")); |
| isFBObjectEnabled = !"false".equals(fbo); |
| |
| // lcdshader currently enabled by default; use "false" to disable |
| String lcd = (String)java.security.AccessController.doPrivileged( |
| new sun.security.action.GetPropertyAction( |
| "sun.java2d.opengl.lcdshader")); |
| isLCDShaderEnabled = !"false".equals(lcd); |
| |
| // biopshader currently enabled by default; use "false" to disable |
| String biop = (String)java.security.AccessController.doPrivileged( |
| new sun.security.action.GetPropertyAction( |
| "sun.java2d.opengl.biopshader")); |
| isBIOpShaderEnabled = !"false".equals(biop); |
| |
| // gradshader currently enabled by default; use "false" to disable |
| String grad = (String)java.security.AccessController.doPrivileged( |
| new sun.security.action.GetPropertyAction( |
| "sun.java2d.opengl.gradshader")); |
| isGradShaderEnabled = !"false".equals(grad); |
| |
| OGLRenderQueue rq = OGLRenderQueue.getInstance(); |
| oglImagePipe = new OGLDrawImage(); |
| oglTextPipe = new OGLTextRenderer(rq); |
| oglRenderPipe = new OGLRenderer(rq); |
| if (GraphicsPrimitive.tracingEnabled()) { |
| oglTextPipe = oglTextPipe.traceWrap(); |
| //The wrapped oglRenderPipe will wrap the AA pipe as well... |
| //oglAAPgramPipe = oglRenderPipe.traceWrap(); |
| } |
| oglAAPgramPipe = oglRenderPipe.getAAParallelogramPipe(); |
| oglTxRenderPipe = |
| new PixelToParallelogramConverter(oglRenderPipe, |
| oglRenderPipe, |
| 1.0, 0.25, true); |
| |
| OGLBlitLoops.register(); |
| OGLMaskFill.register(); |
| OGLMaskBlit.register(); |
| } |
| } |
| |
| protected OGLSurfaceData(OGLGraphicsConfig gc, |
| ColorModel cm, int type) |
| { |
| super(getCustomSurfaceType(type), cm); |
| this.graphicsConfig = gc; |
| this.type = type; |
| setBlitProxyKey(gc.getProxyKey()); |
| } |
| |
| @Override |
| public SurfaceDataProxy makeProxyFor(SurfaceData srcData) { |
| return OGLSurfaceDataProxy.createProxy(srcData, graphicsConfig); |
| } |
| |
| /** |
| * Returns the appropriate SurfaceType corresponding to the given OpenGL |
| * surface type constant (e.g. TEXTURE -> OpenGLTexture). |
| */ |
| private static SurfaceType getCustomSurfaceType(int oglType) { |
| switch (oglType) { |
| case TEXTURE: |
| return OpenGLTexture; |
| case FBOBJECT: |
| return OpenGLSurfaceRTT; |
| case PBUFFER: |
| default: |
| return OpenGLSurface; |
| } |
| } |
| |
| /** |
| * 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 PBUFFER: |
| success = initPbuffer(getNativeOps(), |
| graphicsConfig.getNativeConfigInfo(), |
| isOpaque, |
| width, height); |
| break; |
| |
| case TEXTURE: |
| success = initTexture(getNativeOps(), |
| isOpaque, isTexNonPow2Available(), |
| isTexRectAvailable(), |
| width, height); |
| break; |
| |
| case FBOBJECT: |
| success = initFBObject(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) { |
| OGLRenderQueue rq = OGLRenderQueue.getInstance(); |
| rq.lock(); |
| try { |
| switch (type) { |
| case TEXTURE: |
| case PBUFFER: |
| case FBOBJECT: |
| // need to make sure the context is current before |
| // creating the texture (or pbuffer, or fbobject) |
| OGLContext.setScratchSurface(graphicsConfig); |
| break; |
| default: |
| break; |
| } |
| rq.flushAndInvokeNow(new Runnable() { |
| public void run() { |
| initSurfaceNow(width, height); |
| } |
| }); |
| } finally { |
| rq.unlock(); |
| } |
| } |
| |
| /** |
| * Returns the OGLContext for the GraphicsConfig associated with this |
| * surface. |
| */ |
| public final OGLContext getContext() { |
| return graphicsConfig.getContext(); |
| } |
| |
| /** |
| * Returns the OGLGraphicsConfig associated with this surface. |
| */ |
| final OGLGraphicsConfig getOGLGraphicsConfig() { |
| return graphicsConfig; |
| } |
| |
| /** |
| * Returns one of the surface type constants defined above. |
| */ |
| public final int getType() { |
| return type; |
| } |
| |
| /** |
| * 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 OGLSurfaceData} this method returns the |
| * the following: |
| * <pre> |
| * TEXTURE - texture id |
| * </pre> |
| * |
| * 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 sun.java2d.pipe.hw.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"); |
| } |
| |
| /** |
| * For now, we can only render LCD text if: |
| * - the fragment shader extension is available, and |
| * - blending is disabled, and |
| * - the source color is opaque |
| * - 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.compositeState <= SunGraphics2D.COMP_ISCOPY && |
| sg2d.paintState <= SunGraphics2D.PAINT_OPAQUECOLOR && |
| sg2d.surfaceData.getTransparency() == Transparency.OPAQUE; |
| } |
| |
| public void validatePipe(SunGraphics2D sg2d) { |
| TextPipe textpipe; |
| boolean validated = false; |
| |
| // OGLTextRenderer 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 <= sg2d.COMP_ISCOPY && |
| sg2d.paintState <= sg2d.PAINT_ALPHACOLOR) || |
| |
| /* CompositeType.SrcOver (any color) */ |
| (sg2d.compositeState == sg2d.COMP_ALPHA && |
| sg2d.paintState <= sg2d.PAINT_ALPHACOLOR && |
| (((AlphaComposite)sg2d.composite).getRule() == |
| AlphaComposite.SRC_OVER)) || |
| |
| /* CompositeType.Xor (any color) */ |
| (sg2d.compositeState == sg2d.COMP_XOR && |
| sg2d.paintState <= sg2d.PAINT_ALPHACOLOR)) |
| { |
| textpipe = oglTextPipe; |
| } 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; |
| OGLRenderer nonTxPipe = null; |
| |
| if (sg2d.antialiasHint != SunHints.INTVAL_ANTIALIAS_ON) { |
| if (sg2d.paintState <= sg2d.PAINT_ALPHACOLOR) { |
| if (sg2d.compositeState <= sg2d.COMP_XOR) { |
| txPipe = oglTxRenderPipe; |
| nonTxPipe = oglRenderPipe; |
| } |
| } else if (sg2d.compositeState <= sg2d.COMP_ALPHA) { |
| if (OGLPaints.isValid(sg2d)) { |
| txPipe = oglTxRenderPipe; |
| nonTxPipe = oglRenderPipe; |
| } |
| // custom paints handled by super.validatePipe() below |
| } |
| } else { |
| if (sg2d.paintState <= sg2d.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, |
| oglAAPgramPipe, |
| 1.0/8.0, 0.499, |
| false); |
| sg2d.drawpipe = aaConverter; |
| sg2d.fillpipe = aaConverter; |
| sg2d.shapepipe = aaConverter; |
| } else if (sg2d.compositeState == sg2d.COMP_XOR) { |
| // install the solid pipes when AA and XOR are both enabled |
| txPipe = oglTxRenderPipe; |
| nonTxPipe = oglRenderPipe; |
| } |
| } |
| // other cases handled by super.validatePipe() below |
| } |
| |
| if (txPipe != null) { |
| if (sg2d.transformState >= sg2d.TRANSFORM_TRANSLATESCALE) { |
| sg2d.drawpipe = txPipe; |
| sg2d.fillpipe = txPipe; |
| } else if (sg2d.strokeState != sg2d.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 = oglImagePipe; |
| } |
| |
| @Override |
| protected MaskFill getMaskFill(SunGraphics2D sg2d) { |
| if (sg2d.paintState > sg2d.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 (!OGLPaints.isValid(sg2d) || |
| !graphicsConfig.isCapPresent(CAPS_MULTITEXTURE)) |
| { |
| return null; |
| } |
| } |
| return super.getMaskFill(sg2d); |
| } |
| |
| public boolean copyArea(SunGraphics2D sg2d, |
| int x, int y, int w, int h, int dx, int dy) |
| { |
| if (sg2d.transformState < sg2d.TRANSFORM_TRANSLATESCALE && |
| sg2d.compositeState < sg2d.COMP_XOR) |
| { |
| x += sg2d.transX; |
| y += sg2d.transY; |
| |
| oglRenderPipe.copyArea(sg2d, x, y, w, h, dx, dy); |
| |
| return true; |
| } |
| return false; |
| } |
| |
| public void flush() { |
| invalidate(); |
| OGLRenderQueue rq = OGLRenderQueue.getInstance(); |
| rq.lock(); |
| try { |
| // make sure we have a current context before |
| // disposing the native resources (e.g. texture object) |
| OGLContext.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(); |
| } |
| } |
| |
| /** |
| * Disposes the native resources associated with the given OGLSurfaceData |
| * (referenced by the pData parameter). This method is invoked from |
| * the native Dispose() method from the Disposer thread when the |
| * Java-level OGLSurfaceData object is about to go away. Note that we |
| * also pass a reference to the native GLX/WGLGraphicsConfigInfo |
| * (pConfigInfo) for the purposes of making a context current. |
| */ |
| static void dispose(long pData, long pConfigInfo) { |
| OGLRenderQueue rq = OGLRenderQueue.getInstance(); |
| rq.lock(); |
| try { |
| // make sure we have a current context before |
| // disposing the native resources (e.g. texture object) |
| OGLContext.setScratchSurface(pConfigInfo); |
| |
| RenderBuffer buf = rq.getBuffer(); |
| rq.ensureCapacityAndAlignment(12, 4); |
| buf.putInt(DISPOSE_SURFACE); |
| buf.putLong(pData); |
| |
| // this call is expected to complete synchronously, so flush now |
| rq.flushNow(); |
| } finally { |
| rq.unlock(); |
| } |
| } |
| |
| static void swapBuffers(long window) { |
| OGLRenderQueue rq = OGLRenderQueue.getInstance(); |
| rq.lock(); |
| try { |
| RenderBuffer buf = rq.getBuffer(); |
| rq.ensureCapacityAndAlignment(12, 4); |
| buf.putInt(SWAP_BUFFERS); |
| buf.putLong(window); |
| 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); |
| } |
| |
| public Rectangle getNativeBounds() { |
| OGLRenderQueue rq = OGLRenderQueue.getInstance(); |
| rq.lock(); |
| try { |
| return new Rectangle(nativeWidth, nativeHeight); |
| } finally { |
| rq.unlock(); |
| } |
| } |
| |
| /** |
| * 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. |
| */ |
| boolean isOnScreen() { |
| return getType() == WINDOW; |
| } |
| } |
