/* * Copyright (c) 2003, 2015, 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.Composite; 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 * 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 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); 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 = 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 = 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 = 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 = 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; 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 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 FBOBJECT: // need to make sure the context is current before // creating the texture 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: * 
     * 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 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 * - 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; // 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 <= 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 = 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 <= SunGraphics2D.PAINT_ALPHACOLOR) { if (sg2d.compositeState <= SunGraphics2D.COMP_XOR) { txPipe = oglTxRenderPipe; nonTxPipe = oglRenderPipe; } } else if (sg2d.compositeState <= SunGraphics2D.COMP_ALPHA) { if (OGLPaints.isValid(sg2d)) { txPipe = oglTxRenderPipe; nonTxPipe = oglRenderPipe; } // 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, oglAAPgramPipe, 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 = oglTxRenderPipe; nonTxPipe = oglRenderPipe; } } // 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 = oglImagePipe; } @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 (!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 < SunGraphics2D.TRANSFORM_TRANSLATESCALE && sg2d.compositeState < SunGraphics2D.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; } }