src/java.desktop/unix/classes/sun/java2d/opengl/GLXSurfaceData.java
changeset 47216 71c04702a3d5
parent 45021 0b4642f22ee6
child 58315 07556f8cd819
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/java.desktop/unix/classes/sun/java2d/opengl/GLXSurfaceData.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,245 @@
+/*
+ * Copyright (c) 2003, 2017, 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.GraphicsConfiguration;
+import java.awt.GraphicsDevice;
+import java.awt.GraphicsEnvironment;
+import java.awt.Image;
+import java.awt.Rectangle;
+import java.awt.image.ColorModel;
+
+import sun.awt.X11ComponentPeer;
+import sun.java2d.SurfaceData;
+
+public abstract class GLXSurfaceData extends OGLSurfaceData {
+
+    protected X11ComponentPeer peer;
+    private GLXGraphicsConfig graphicsConfig;
+
+    private native void initOps(X11ComponentPeer peer, long aData);
+
+    protected GLXSurfaceData(X11ComponentPeer peer, GLXGraphicsConfig gc,
+                             ColorModel cm, int type)
+    {
+        super(gc, cm, type);
+        this.peer = peer;
+        this.graphicsConfig = gc;
+        initOps(peer, graphicsConfig.getAData());
+    }
+
+    public GraphicsConfiguration getDeviceConfiguration() {
+        return graphicsConfig;
+    }
+
+    /**
+     * Creates a SurfaceData object representing the primary (front) buffer
+     * of an on-screen Window.
+     */
+    public static GLXWindowSurfaceData createData(X11ComponentPeer peer) {
+        GLXGraphicsConfig gc = getGC(peer);
+        return new GLXWindowSurfaceData(peer, gc);
+    }
+
+    /**
+     * Creates a SurfaceData object representing the back buffer of a
+     * double-buffered on-screen Window.
+     */
+    public static GLXOffScreenSurfaceData createData(X11ComponentPeer peer,
+                                                     Image image,
+                                                     int type)
+    {
+        GLXGraphicsConfig gc = getGC(peer);
+        Rectangle r = peer.getBounds();
+        if (type == FLIP_BACKBUFFER) {
+            return new GLXOffScreenSurfaceData(peer, gc, r.width, r.height,
+                                               image, peer.getColorModel(),
+                                               FLIP_BACKBUFFER);
+        } else {
+            return new GLXVSyncOffScreenSurfaceData(peer, gc, r.width, r.height,
+                                                    image, peer.getColorModel(),
+                                                    type);
+        }
+    }
+
+    /**
+     * Creates a SurfaceData object representing an off-screen buffer (either
+     * a FBO or Texture).
+     */
+    public static GLXOffScreenSurfaceData createData(GLXGraphicsConfig gc,
+                                                     int width, int height,
+                                                     ColorModel cm,
+                                                     Image image, int type)
+    {
+        return new GLXOffScreenSurfaceData(null, gc, width, height,
+                                           image, cm, type);
+    }
+
+    public static GLXGraphicsConfig getGC(X11ComponentPeer peer) {
+        if (peer != null) {
+            return (GLXGraphicsConfig)peer.getGraphicsConfiguration();
+        } else {
+            // REMIND: this should rarely (never?) happen, but what if
+            //         default config is not GLX?
+            GraphicsEnvironment env =
+                GraphicsEnvironment.getLocalGraphicsEnvironment();
+            GraphicsDevice gd = env.getDefaultScreenDevice();
+            return (GLXGraphicsConfig)gd.getDefaultConfiguration();
+        }
+    }
+
+    public static class GLXWindowSurfaceData extends GLXSurfaceData {
+        protected final int scale;
+
+        public GLXWindowSurfaceData(X11ComponentPeer peer,
+                                    GLXGraphicsConfig gc)
+        {
+            super(peer, gc, peer.getColorModel(), WINDOW);
+            scale = gc.getScale();
+        }
+
+        public SurfaceData getReplacement() {
+            return peer.getSurfaceData();
+        }
+
+        public Rectangle getBounds() {
+            Rectangle r = peer.getBounds();
+            r.x = r.y = 0;
+            r.width = (int) Math.ceil(r.width * scale);
+            r.height = (int) Math.ceil(r.height * scale);
+            return r;
+        }
+
+        /**
+         * Returns destination Component associated with this SurfaceData.
+         */
+        public Object getDestination() {
+            return peer.getTarget();
+        }
+
+        @Override
+        public double getDefaultScaleX() {
+            return scale;
+        }
+
+        @Override
+        public double getDefaultScaleY() {
+            return scale;
+        }
+    }
+
+    /**
+     * 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 GLXVSyncOffScreenSurfaceData extends
+        GLXOffScreenSurfaceData
+    {
+        private GLXOffScreenSurfaceData flipSurface;
+
+        public GLXVSyncOffScreenSurfaceData(X11ComponentPeer peer,
+                                            GLXGraphicsConfig gc,
+                                            int width, int height,
+                                            Image image, ColorModel cm,
+                                            int type)
+        {
+            super(peer, gc, width, height, image, cm, type);
+            flipSurface = GLXSurfaceData.createData(peer, image, FLIP_BACKBUFFER);
+        }
+
+        public SurfaceData getFlipSurface() {
+            return flipSurface;
+        }
+
+        @Override
+        public void flush() {
+            flipSurface.flush();
+            super.flush();
+        }
+
+    }
+
+    public static class GLXOffScreenSurfaceData extends GLXSurfaceData {
+
+        private Image offscreenImage;
+        private int width, height;
+        private final int scale;
+
+        public GLXOffScreenSurfaceData(X11ComponentPeer peer,
+                                       GLXGraphicsConfig gc,
+                                       int width, int height,
+                                       Image image, ColorModel cm,
+                                       int type)
+        {
+            super(peer, gc, cm, type);
+
+            scale = gc.getDevice().getScaleFactor();
+            this.width = width * scale;
+            this.height = height * scale;
+            offscreenImage = image;
+
+            initSurface(this.width, this.height);
+        }
+
+        public SurfaceData getReplacement() {
+            return restoreContents(offscreenImage);
+        }
+
+        public Rectangle getBounds() {
+            if (type == FLIP_BACKBUFFER) {
+                Rectangle r = peer.getBounds();
+                r.x = r.y = 0;
+                r.width = (int) Math.ceil(r.width * scale);
+                r.height = (int) Math.ceil(r.height * scale);
+                return r;
+            } else {
+                return new Rectangle(width, height);
+            }
+        }
+
+        /**
+         * Returns destination Image associated with this SurfaceData.
+         */
+        public Object getDestination() {
+            return offscreenImage;
+        }
+
+        @Override
+        public double getDefaultScaleX() {
+            return scale;
+        }
+
+        @Override
+        public double getDefaultScaleY() {
+            return scale;
+        }
+    }
+}