From 4b14f14cbb84c3d60d3fb501d78873c574eec6bd Mon Sep 17 00:00:00 2001
From: Kenneth Russel <kbrussel@alum.mit.edu>
Date: Fri, 10 Feb 2006 20:06:04 +0000
Subject: Made loading of GLU library lazier, partially in the hope that this
 may address problems on certain Linux distributions where for some reason
 we're falling back to software rendering with Mesa

git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/svn-server-sync/jogl/trunk@595 232f8b59-042b-4e1e-8c03-345bb8c30851
---
 make/build.xml               |  8 ++++----
 make/glu-CustomJavaCode.java | 11 +++++++++++
 make/glx-CustomCCode.c       | 11 +++++++++++
 make/glx-x11.cfg             |  1 +
 4 files changed, 27 insertions(+), 4 deletions(-)

(limited to 'make')

diff --git a/make/build.xml b/make/build.xml
index 1e7d614f1..1f251e82d 100644
--- a/make/build.xml
+++ b/make/build.xml
@@ -701,19 +701,19 @@
       <!-- linker configuration -->
  
       <linker id="linker.cfg.linux" name="gcc">
-        <syslibset dir="/usr/X11R6/lib" libs="GL, GLU, X11"/>
+        <syslibset dir="/usr/X11R6/lib" libs="GL, X11"/>
         <syslibset dir="/usr/X11R6/lib" libs="Xxf86vm" />
         <syslibset dir="${x11.cg.lib}" libs="Cg, CgGL" if="c.compiler.use-cglib"/>
       </linker>
 
       <linker id="linker.cfg.linux.amd64" name="gcc">
-        <syslibset dir="/usr/X11R6/lib64" libs="GL, GLU, X11"/>
+        <syslibset dir="/usr/X11R6/lib64" libs="GL, X11"/>
         <syslibset dir="/usr/X11R6/lib64" libs="Xxf86vm" />
         <syslibset dir="${x11.cg.lib}" libs="Cg, CgGL" if="c.compiler.use-cglib"/>
       </linker>
 
       <linker id="linker.cfg.solaris" name="suncc">
-        <syslibset libs="GL, GLU, X11"/>
+        <syslibset libs="GL, X11"/>
       </linker>
 
       <linker id="linker.cfg.win32.mingw" name="gcc" incremental="false">
@@ -727,7 +727,7 @@
         <linkerarg value="/SUBSYSTEM:WINDOWS" />  <!-- output is not a console app as uses WinMain entry point -->
         <linkerarg value="/MACHINE:IX86" />       <!-- explicity set target platform -->
 
-        <syslibset libs="opengl32, glu32, gdi32, user32, kernel32" />
+        <syslibset libs="opengl32, gdi32, user32, kernel32" />
         
         <syslibset dir="${windows.cg.lib}" libs="cg, cgGL" if="c.compiler.use-cglib"/>
       </linker>
diff --git a/make/glu-CustomJavaCode.java b/make/glu-CustomJavaCode.java
index ffa3a0242..1ea4f20b9 100644
--- a/make/glu-CustomJavaCode.java
+++ b/make/glu-CustomJavaCode.java
@@ -1432,8 +1432,12 @@ public int gluScaleImage(int format, int wIn, int hIn, int typeIn, java.nio.Buff
 //
 
 private static GLUProcAddressTable gluProcAddressTable;
+private static volatile boolean gluLibraryLoaded;
 
 private static GLUProcAddressTable getGLUProcAddressTable() {
+  if (!gluLibraryLoaded) {
+    loadGLULibrary();
+  }
   if (gluProcAddressTable == null) {
     GLUProcAddressTable tmp = new GLUProcAddressTable();
     ProcAddressHelper.resetProcAddressTable(tmp, GLDrawableFactoryImpl.getFactoryImpl());
@@ -1441,3 +1445,10 @@ private static GLUProcAddressTable getGLUProcAddressTable() {
   }
   return gluProcAddressTable;
 }
+
+private static synchronized void loadGLULibrary() {
+  if (!gluLibraryLoaded) {
+    GLDrawableFactoryImpl.getFactoryImpl().loadGLULibrary();
+    gluLibraryLoaded = true;
+  }
+}
diff --git a/make/glx-CustomCCode.c b/make/glx-CustomCCode.c
index 504b8432f..791927604 100755
--- a/make/glx-CustomCCode.c
+++ b/make/glx-CustomCCode.c
@@ -51,6 +51,17 @@ JNIEXPORT jlong JNICALL
 Java_com_sun_opengl_impl_x11_GLX_RootWindow(JNIEnv *env, jclass _unused, jlong display, jint screen) {
   return RootWindow((Display*) (intptr_t) display, screen);
 }
+
+JNIEXPORT jlong JNICALL 
+Java_com_sun_opengl_impl_x11_GLX_dlopen(JNIEnv *env, jclass _unused, jstring name) {
+  const jbyte* chars;
+  void* res;
+  chars = (*env)->GetStringUTFChars(env, name, NULL);
+  res = dlopen(chars, RTLD_LAZY | RTLD_GLOBAL);
+  (*env)->ReleaseStringUTFChars(env, name, chars);
+  return (jlong) ((intptr_t) res);
+}
+
 JNIEXPORT jlong JNICALL 
 Java_com_sun_opengl_impl_x11_GLX_dlsym(JNIEnv *env, jclass _unused, jstring name) {
   const jbyte* chars;
diff --git a/make/glx-x11.cfg b/make/glx-x11.cfg
index 5680a419a..93ff2d02f 100644
--- a/make/glx-x11.cfg
+++ b/make/glx-x11.cfg
@@ -13,6 +13,7 @@ SkipProcAddressGen glXGetProcAddressARB
 
 CustomJavaCode GLX private static GLXProcAddressTable glxProcAddressTable = new GLXProcAddressTable();
 CustomJavaCode GLX public  static GLXProcAddressTable getGLXProcAddressTable() { return glxProcAddressTable; }
+CustomJavaCode GLX public static native long dlopen(String name);
 CustomJavaCode GLX public static native long dlsym(String name);
 
 IncludeAs CustomCCode glx-CustomCCode.c
-- 
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