Bug 1156: EGL-GBM: Fix NativeWindowFactory native-window-type query according to Bug 1156

- Special files like '/dev/dri/card0' can't be tested via isFile(), use exists()

Order for GNU/Linux (and other unices) IMHO is

1) Display Server (Vendor neutral)
1.1) running X11 display server (DISPLAY check enough?)
1.2) running WAYLAND display server (WAYLAND_DISPLAY check enough?)

2) Console Mode Vendor Neutral
2.1) GBM (how to check?)

3) Console Mode Vendor Specific
3.1) VCIV (how to check)

1 files changed, 9 insertions, 3 deletions

diff --git a/src/nativewindow/classes/jogamp/nativewindow/BcmVCArtifacts.java b/src/nativewindow/classes/jogamp/nativewindow/BcmVCArtifacts.java
index 216c55a3a..0fc0665bc 100644
--- a/src/nativewindow/classes/jogamp/nativewindow/BcmVCArtifacts.java
+++ b/src/nativewindow/classes/jogamp/nativewindow/BcmVCArtifacts.java
@@ -53,7 +53,7 @@ public class BcmVCArtifacts {
                 public Object run() {
                     res[0] = vcLibLocation.isFile();
                     res[1] = vc4ModLocation.isDirectory();
-                    res[2] = driCard0Location.isFile();
+                    res[2] = driCard0Location.exists(); // not a normal file
                     return null;
                 } } );
         hasVCLib = res[0];
@@ -64,13 +64,19 @@ public class BcmVCArtifacts {
     /**
      * @return True if proprietary BCM VC IV is probably being present
      */
-    public static final boolean guessVCIVPresent() {
+    public static final boolean guessVCIVPresent(final boolean debug) {
+        if( debug ) {
+            System.err.println("guessVCIVPresent: hasVCLib "+hasVCLib);
+        }
         return hasVCLib;
     }
     /**
      * @return True if proprietary BCM VC IV is probably being used and not Xorg drivers
      */
-    public static final boolean guessVCIVUsed() {
+    public static final boolean guessVCIVUsed(final boolean debug) {
+        if( debug ) {
+            System.err.println("guessVCIVUsed: hasVCLib = "+hasVCLib+" && !hasVC4ModLocation = !"+hasVC4ModLocation+" && !hasDriCard0File = !"+hasDriCard0File);
+        }
         return hasVCLib && !hasVC4ModLocation && !hasDriCard0File;
     }
 }