1 files changed, 439 insertions, 0 deletions
diff --git a/src/classes/com/sun/opengl/impl/x11/X11GLDrawableFactory.java b/src/classes/com/sun/opengl/impl/x11/X11GLDrawableFactory.java
new file mode 100644
index 000000000..f4523c95e
--- /dev/null
+++ b/src/classes/com/sun/opengl/impl/x11/X11GLDrawableFactory.java
@@ -0,0 +1,439 @@
+/*
+ * Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ * 
+ * - Redistribution of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ * - Redistribution in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * 
+ * Neither the name of Sun Microsystems, Inc. or the names of
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ * 
+ * This software is provided "AS IS," without a warranty of any kind. ALL
+ * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
+ * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
+ * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
+ * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
+ * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
+ * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
+ * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
+ * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
+ * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
+ * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
+ * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+ * 
+ * You acknowledge that this software is not designed or intended for use
+ * in the design, construction, operation or maintenance of any nuclear
+ * facility.
+ * 
+ * Sun gratefully acknowledges that this software was originally authored
+ * and developed by Kenneth Bradley Russell and Christopher John Kline.
+ */
+
+package com.sun.opengl.impl.x11;
+
+import java.awt.Component;
+import java.awt.GraphicsConfiguration;
+import java.awt.GraphicsDevice;
+import java.awt.GraphicsEnvironment;
+import java.security.*;
+import java.util.ArrayList;
+import java.util.List;
+import javax.media.opengl.*;
+import com.sun.opengl.impl.*;
+
+public class X11GLDrawableFactory extends GLDrawableFactoryImpl {
+  private static final boolean DEBUG = Debug.debug("X11GLDrawableFactory");
+
+  // There is currently a bug on Linux/AMD64 distributions in glXGetProcAddressARB
+  private static boolean isLinuxAMD64;
+
+  static {
+    NativeLibLoader.load();
+
+    AccessController.doPrivileged(new PrivilegedAction() {
+        public Object run() {
+          String os   = System.getProperty("os.name").toLowerCase();
+          String arch = System.getProperty("os.arch").toLowerCase();
+          if (os.startsWith("linux") && arch.equals("amd64")) {
+            isLinuxAMD64 = true;
+          }
+          return null;
+        }
+      });
+  }
+
+  public X11GLDrawableFactory() {
+    // Must initialize GLX support eagerly in case a pbuffer is the
+    // first thing instantiated
+    resetProcAddressTable(GLX.getGLXProcAddressTable());
+  }
+
+  private static final int MAX_ATTRIBS = 128;
+
+  public GraphicsConfiguration chooseGraphicsConfiguration(GLCapabilities capabilities,
+                                                           GLCapabilitiesChooser chooser,
+                                                           GraphicsDevice device) {
+    if (capabilities == null) {
+      capabilities = new GLCapabilities();
+    }
+    if (chooser == null) {
+      chooser = new DefaultGLCapabilitiesChooser();
+    }
+    if (device == null) {
+      device = GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice();
+    }
+
+    int screen = X11SunJDKReflection.graphicsDeviceGetScreen(device);
+    // Until we have a rock-solid visual selection algorithm written
+    // in pure Java, we're going to provide the underlying window
+    // system's selection to the chooser as a hint
+
+    int[] attribs = glCapabilities2AttribList(capabilities, isMultisampleAvailable());
+    XVisualInfo[] infos = null;
+    GLCapabilities[] caps = null;
+    int recommendedIndex = -1;
+    lockAWT();
+    try {
+      long display = getDisplayConnection();
+      XVisualInfo recommendedVis = GLX.glXChooseVisual(display, screen, attribs, 0);
+      int[] count = new int[1];
+      XVisualInfo template = new XVisualInfo();
+      template.screen(screen);
+      infos = GLX.XGetVisualInfo(display, GLX.VisualScreenMask, template, count, 0);
+      if (infos == null) {
+        throw new GLException("Error while enumerating available XVisualInfos");
+      }
+      caps = new GLCapabilities[infos.length];
+      for (int i = 0; i < infos.length; i++) {
+        caps[i] = xvi2GLCapabilities(display, infos[i]);
+        // Attempt to find the visual chosen by glXChooseVisual
+        if (recommendedVis != null && recommendedVis.visualid() == infos[i].visualid()) {
+          recommendedIndex = i;
+        }
+      }
+    } finally {
+      unlockAWT();
+    }
+    int chosen = chooser.chooseCapabilities(capabilities, caps, recommendedIndex);
+    if (chosen < 0 || chosen >= caps.length) {
+      throw new GLException("GLCapabilitiesChooser specified invalid index (expected 0.." + (caps.length - 1) + ")");
+    }
+    XVisualInfo vis = infos[chosen];
+    if (vis == null) {
+      throw new GLException("GLCapabilitiesChooser chose an invalid visual");
+    }
+    // FIXME: need to look at glue code and see type of this field
+    long visualID = vis.visualid();
+    // FIXME: the storage for the infos array, as well as that for the
+    // recommended visual, is leaked; should free them here with XFree()
+
+    // Now figure out which GraphicsConfiguration corresponds to this
+    // visual by matching the visual ID
+    GraphicsConfiguration[] configs = device.getConfigurations();
+    for (int i = 0; i < configs.length; i++) {
+      GraphicsConfiguration config = configs[i];
+      if (config != null) {
+        if (X11SunJDKReflection.graphicsConfigurationGetVisualID(config) == visualID) {
+          return config;
+        }
+      }
+    }
+
+    // Either we weren't able to reflectively introspect on the
+    // X11GraphicsConfig or something went wrong in the steps above;
+    // we're going to return null without signaling an error condition
+    // in this case (although we should distinguish between the two
+    // and possibly report more of an error in the latter case)
+    return null;
+  }
+
+  public GLDrawable getGLDrawable(Object target,
+                                  GLCapabilities capabilities,
+                                  GLCapabilitiesChooser chooser) {
+    if (target == null) {
+      throw new IllegalArgumentException("Null target");
+    }
+    if (!(target instanceof Component)) {
+      throw new IllegalArgumentException("GLDrawables not supported for objects of type " +
+                                         target.getClass().getName() + " (only Components are supported in this implementation)");
+    }
+    return new X11OnscreenGLDrawable((Component) target);
+  }
+
+  public GLDrawableImpl createOffscreenDrawable(GLCapabilities capabilities,
+                                                GLCapabilitiesChooser chooser) {
+    return new X11OffscreenGLDrawable(capabilities, chooser);
+  }
+
+  private boolean pbufferSupportInitialized = false;
+  private boolean canCreateGLPbuffer = false;
+  public boolean canCreateGLPbuffer() {
+    if (!pbufferSupportInitialized) {
+      Runnable r = new Runnable() {
+          public void run() {
+            long display = getDisplayConnection();
+            lockAWT();
+            try {
+              int[] major = new int[1];
+              int[] minor = new int[1];
+              if (!GLX.glXQueryVersion(display, major, 0, minor, 0)) {
+                throw new GLException("glXQueryVersion failed");
+              }
+              if (DEBUG) {
+                System.err.println("!!! GLX version: major " + major[0] +
+                                   ", minor " + minor[0]);
+              }
+
+              int screen = 0; // FIXME: provide way to specify this?
+
+              // Work around bugs in ATI's Linux drivers where they report they
+              // only implement GLX version 1.2 but actually do support pbuffers
+              if (major[0] == 1 && minor[0] == 2) {
+                String str = GLX.glXQueryServerString(display, screen, GLX.GLX_VENDOR);
+                if (str != null && str.indexOf("ATI") >= 0) {
+                  canCreateGLPbuffer = true;
+                }
+              } else {
+                canCreateGLPbuffer = ((major[0] > 1) || (minor[0] > 2));
+              }
+        
+              pbufferSupportInitialized = true;        
+            } finally {
+              unlockAWT();
+            }
+          }
+        };
+      maybeDoSingleThreadedWorkaround(r);
+    }
+    return canCreateGLPbuffer;
+  }
+
+  public GLPbuffer createGLPbuffer(final GLCapabilities capabilities,
+                                   final int initialWidth,
+                                   final int initialHeight,
+                                   final GLContext shareWith) {
+    if (!canCreateGLPbuffer()) {
+      throw new GLException("Pbuffer support not available with current graphics card");
+    }
+    final List returnList = new ArrayList();
+    Runnable r = new Runnable() {
+        public void run() {
+          X11PbufferGLDrawable pbufferDrawable = new X11PbufferGLDrawable(capabilities,
+                                                                          initialWidth,
+                                                                          initialHeight);
+          GLPbufferImpl pbuffer = new GLPbufferImpl(pbufferDrawable, shareWith);
+          returnList.add(pbuffer);
+        }
+      };
+    maybeDoSingleThreadedWorkaround(r);
+    return (GLPbuffer) returnList.get(0);
+  }
+
+  public GLContext createExternalGLContext() {
+    return new X11ExternalGLContext();
+  }
+
+  public boolean canCreateExternalGLDrawable() {
+    return canCreateGLPbuffer();
+  }
+
+  public GLDrawable createExternalGLDrawable() {
+    return new X11ExternalGLDrawable();
+  }
+
+  public long dynamicLookupFunction(String glFuncName) {
+    long res = 0;
+    if (!isLinuxAMD64) {
+      res = GLX.glXGetProcAddressARB(glFuncName);
+    }
+    if (res == 0) {
+      // GLU routines aren't known to the OpenGL function lookup
+      res = GLX.dlsym(glFuncName);
+    }
+    return res;
+  }
+
+  public static GLCapabilities xvi2GLCapabilities(long display, XVisualInfo info) {
+    int[] tmp = new int[1];
+    int val = glXGetConfig(display, info, GLX.GLX_USE_GL, tmp, 0);
+    if (val == 0) {
+      // Visual does not support OpenGL
+      return null;
+    }
+    val = glXGetConfig(display, info, GLX.GLX_RGBA, tmp, 0);
+    if (val == 0) {
+      // Visual does not support RGBA
+      return null;
+    }
+    GLCapabilities res = new GLCapabilities();
+    res.setDoubleBuffered(glXGetConfig(display, info, GLX.GLX_DOUBLEBUFFER,     tmp, 0) != 0);
+    res.setStereo        (glXGetConfig(display, info, GLX.GLX_STEREO,           tmp, 0) != 0);
+    // Note: use of hardware acceleration is determined by
+    // glXCreateContext, not by the XVisualInfo. Optimistically claim
+    // that all GLCapabilities have the capability to be hardware
+    // accelerated.
+    res.setHardwareAccelerated(true);
+    res.setDepthBits     (glXGetConfig(display, info, GLX.GLX_DEPTH_SIZE,       tmp, 0));
+    res.setStencilBits   (glXGetConfig(display, info, GLX.GLX_STENCIL_SIZE,     tmp, 0));
+    res.setRedBits       (glXGetConfig(display, info, GLX.GLX_RED_SIZE,         tmp, 0));
+    res.setGreenBits     (glXGetConfig(display, info, GLX.GLX_GREEN_SIZE,       tmp, 0));
+    res.setBlueBits      (glXGetConfig(display, info, GLX.GLX_BLUE_SIZE,        tmp, 0));
+    res.setAlphaBits     (glXGetConfig(display, info, GLX.GLX_ALPHA_SIZE,       tmp, 0));
+    res.setAccumRedBits  (glXGetConfig(display, info, GLX.GLX_ACCUM_RED_SIZE,   tmp, 0));
+    res.setAccumGreenBits(glXGetConfig(display, info, GLX.GLX_ACCUM_GREEN_SIZE, tmp, 0));
+    res.setAccumBlueBits (glXGetConfig(display, info, GLX.GLX_ACCUM_BLUE_SIZE,  tmp, 0));
+    res.setAccumAlphaBits(glXGetConfig(display, info, GLX.GLX_ACCUM_ALPHA_SIZE, tmp, 0));
+    if (isMultisampleAvailable()) {
+      res.setSampleBuffers(glXGetConfig(display, info, GLX.GLX_SAMPLE_BUFFERS_ARB, tmp, 0) != 0);
+      res.setNumSamples   (glXGetConfig(display, info, GLX.GLX_SAMPLES_ARB,        tmp, 0));
+    }
+    return res;
+  }
+
+  public static int[] glCapabilities2AttribList(GLCapabilities caps,
+                                                boolean isMultisampleAvailable) {
+    int colorDepth = (caps.getRedBits() +
+                      caps.getGreenBits() +
+                      caps.getBlueBits());
+    if (colorDepth < 15) {
+      throw new GLException("Bit depths < 15 (i.e., non-true-color) not supported");
+    }
+    int[] res = new int[MAX_ATTRIBS];
+    int idx = 0;
+    res[idx++] = GLX.GLX_RGBA;
+    if (caps.getDoubleBuffered()) {
+      res[idx++] = GLX.GLX_DOUBLEBUFFER;
+    }
+    if (caps.getStereo()) {
+      res[idx++] = GLX.GLX_STEREO;
+    }
+    res[idx++] = GLX.GLX_RED_SIZE;
+    res[idx++] = caps.getRedBits();
+    res[idx++] = GLX.GLX_GREEN_SIZE;
+    res[idx++] = caps.getGreenBits();
+    res[idx++] = GLX.GLX_BLUE_SIZE;
+    res[idx++] = caps.getBlueBits();
+    res[idx++] = GLX.GLX_ALPHA_SIZE;
+    res[idx++] = caps.getAlphaBits();
+    res[idx++] = GLX.GLX_DEPTH_SIZE;
+    res[idx++] = caps.getDepthBits();
+    res[idx++] = GLX.GLX_STENCIL_SIZE;
+    res[idx++] = caps.getStencilBits();
+    res[idx++] = GLX.GLX_ACCUM_RED_SIZE;
+    res[idx++] = caps.getAccumRedBits();
+    res[idx++] = GLX.GLX_ACCUM_GREEN_SIZE;
+    res[idx++] = caps.getAccumGreenBits();
+    res[idx++] = GLX.GLX_ACCUM_BLUE_SIZE;
+    res[idx++] = caps.getAccumBlueBits();
+    if (isMultisampleAvailable && caps.getSampleBuffers()) {
+      res[idx++] = GLXExt.GLX_SAMPLE_BUFFERS_ARB;
+      res[idx++] = GL.GL_TRUE;
+      res[idx++] = GLXExt.GLX_SAMPLES_ARB;
+      res[idx++] = caps.getNumSamples();
+    }
+    res[idx++] = 0;
+    return res;
+  }
+
+  // JAWT access
+  private static JAWT jawt;
+  public static JAWT getJAWT() {
+    if (jawt == null) {
+      JAWT j = new JAWT();
+      j.version(JAWTFactory.JAWT_VERSION_1_4);
+      if (!JAWTFactory.JAWT_GetAWT(j)) {
+        throw new RuntimeException("Unable to initialize JAWT");
+      }
+      jawt = j;
+    }
+    return jawt;
+  }
+
+  public static void lockAWT() {
+    if (!Java2D.isOGLPipelineActive() || !Java2D.isQueueFlusherThread()) {
+      getJAWT().Lock();
+    }
+  }
+
+  public static void unlockAWT() {
+    if (!Java2D.isOGLPipelineActive() || !Java2D.isQueueFlusherThread()) {
+      getJAWT().Unlock();
+    }
+  }
+
+  public void lockAWTForJava2D() {
+    lockAWT();
+  }
+  public void unlockAWTForJava2D() {
+    unlockAWT();
+  }
+
+  // Display connection for use by visual selection algorithm and by all offscreen surfaces
+  private static long staticDisplay;
+  public static long getDisplayConnection() {
+    if (staticDisplay == 0) {
+      lockAWT();
+      try {
+        staticDisplay = GLX.XOpenDisplay(null);
+      } finally {
+        unlockAWT();
+      }
+      if (staticDisplay == 0) {
+        throw new GLException("Unable to open default display, needed for visual selection and offscreen surface handling");
+      }
+    }
+    return staticDisplay;
+  }
+
+  private static boolean checkedMultisample;
+  private static boolean multisampleAvailable;
+  public static boolean isMultisampleAvailable() {
+    if (!checkedMultisample) {
+      long display = getDisplayConnection();
+      String exts = GLX.glXGetClientString(display, GLX.GLX_EXTENSIONS);
+      if (exts != null) {
+        multisampleAvailable = (exts.indexOf("GLX_ARB_multisample") >= 0);
+      }
+      checkedMultisample = true;
+    }
+    return multisampleAvailable;
+  }
+
+  private static String glXGetConfigErrorCode(int err) {
+    switch (err) {
+      case GLX.GLX_NO_EXTENSION:  return "GLX_NO_EXTENSION";
+      case GLX.GLX_BAD_SCREEN:    return "GLX_BAD_SCREEN";
+      case GLX.GLX_BAD_ATTRIBUTE: return "GLX_BAD_ATTRIBUTE";
+      case GLX.GLX_BAD_VISUAL:    return "GLX_BAD_VISUAL";
+      default:                return "Unknown error code " + err;
+    }
+  }
+
+  public static int glXGetConfig(long display, XVisualInfo info, int attrib, int[] tmp, int tmp_offset) {
+    if (display == 0) {
+      throw new GLException("No display connection");
+    }
+    int res = GLX.glXGetConfig(display, info, attrib, tmp, tmp_offset);
+    if (res != 0) {
+      throw new GLException("glXGetConfig failed: error code " + glXGetConfigErrorCode(res));
+    }
+    return tmp[tmp_offset];
+  }
+
+  private void maybeDoSingleThreadedWorkaround(Runnable action) {
+    if (Threading.isSingleThreaded() &&
+        !Threading.isOpenGLThread()) {
+      Threading.invokeOnOpenGLThread(action);
+    } else {
+      action.run();
+    }
+  }
+}