Fixed problems with lack of hardware acceleration on Linux

distributions using DRI drivers. Hacked around limitations of the
current DRI implementation by manually dlopen'ing libGL.so.1; avoids
changing glue code generation for core OpenGL 1.1 routines which do
not otherwise need to be called through function pointers on any
platform.


git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/svn-server-sync/jogl/trunk@614 232f8b59-042b-4e1e-8c03-345bb8c30851

1 files changed, 59 insertions, 0 deletions

diff --git a/src/native/jogl/drihack.c b/src/native/jogl/drihack.c
new file mode 100644
index 000000000..912b11800
--- /dev/null
+++ b/src/native/jogl/drihack.c
@@ -0,0 +1,59 @@
+/*
+ * 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
+ * MIDROSYSTEMS, 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.
+ */
+
+#include <jni.h>
+
+#include <inttypes.h>
+#include <dlfcn.h>
+
+JNIEXPORT jlong JNICALL
+Java_com_sun_opengl_impl_x11_DRIHack_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 int JNICALL
+Java_com_sun_opengl_impl_x11_DRIHack_dlclose(JNIEnv* env, jclass unused, jlong handle) 
+{
+  return dlclose((void*) ((intptr_t) handle));
+}