Complete translucency support (core w/ X11 (only) - tested w/ NEWT)

DefaultGLCapabilitiesChooser:
  - Add penalty for opaque mismatch: dbl-buf > opaq > stencil

GLGraphicsConfigurationFactory:
  - Case no-chooser && has-recommended-idx:
      - Only use recommended index if caps is opaque,
        otherwise use default chooser to validate translucency

NativeWindow Capabilities:
  - transparent default values -> 0

Added NEWT Test: TestTranslucencyNEWT

Added command line translucency/undecorated options for TestGearsES2NEWT

2 files changed, 14 insertions, 9 deletions

diff --git a/src/jogl/classes/javax/media/opengl/DefaultGLCapabilitiesChooser.java b/src/jogl/classes/javax/media/opengl/DefaultGLCapabilitiesChooser.java
index 52628f6fa..be509c332 100644
--- a/src/jogl/classes/javax/media/opengl/DefaultGLCapabilitiesChooser.java
+++ b/src/jogl/classes/javax/media/opengl/DefaultGLCapabilitiesChooser.java
@@ -120,16 +120,18 @@ public class DefaultGLCapabilitiesChooser implements GLCapabilitiesChooser {
 
     // Create score array
     int[] scores = new int[availnum];
-    int NO_SCORE = -9999999;
-    int DOUBLE_BUFFER_MISMATCH_PENALTY = 1000;
-    int STENCIL_MISMATCH_PENALTY = 500;
+    final int NO_SCORE = -9999999;
+    final int DOUBLE_BUFFER_MISMATCH_PENALTY = 1000;
+    final int OPAQUE_MISMATCH_PENALTY = 750;
+    final int STENCIL_MISMATCH_PENALTY = 500;
     // Pseudo attempt to keep equal rank penalties scale-equivalent
     // (e.g., stencil mismatch is 3 * accum because there are 3 accum
     // components)
-    int COLOR_MISMATCH_PENALTY_SCALE     = 36;
-    int DEPTH_MISMATCH_PENALTY_SCALE     = 6;
-    int ACCUM_MISMATCH_PENALTY_SCALE     = 1;
-    int STENCIL_MISMATCH_PENALTY_SCALE   = 3;
+    final int COLOR_MISMATCH_PENALTY_SCALE     = 36;
+    final int DEPTH_MISMATCH_PENALTY_SCALE     = 6;
+    final int ACCUM_MISMATCH_PENALTY_SCALE     = 1;
+    final int STENCIL_MISMATCH_PENALTY_SCALE   = 3;
+    
     for (int i = 0; i < scores.length; i++) {
       scores[i] = NO_SCORE;
     }
@@ -166,6 +168,9 @@ public class DefaultGLCapabilitiesChooser implements GLCapabilitiesChooser {
       if (cur.getDoubleBuffered() != gldes.getDoubleBuffered()) {
         score += sign(score) * DOUBLE_BUFFER_MISMATCH_PENALTY;
       }
+      if (cur.isBackgroundOpaque() != gldes.isBackgroundOpaque()) {
+        score += sign(score) * OPAQUE_MISMATCH_PENALTY;
+      }
       if ((gldes.getStencilBits() > 0) && (cur.getStencilBits() == 0)) {
         score += sign(score) * STENCIL_MISMATCH_PENALTY;
       }
diff --git a/src/jogl/classes/jogamp/opengl/GLGraphicsConfigurationFactory.java b/src/jogl/classes/jogamp/opengl/GLGraphicsConfigurationFactory.java
index e51e997a3..6fe9f080c 100644
--- a/src/jogl/classes/jogamp/opengl/GLGraphicsConfigurationFactory.java
+++ b/src/jogl/classes/jogamp/opengl/GLGraphicsConfigurationFactory.java
@@ -49,9 +49,9 @@ public abstract class GLGraphicsConfigurationFactory extends GraphicsConfigurati
             return -1; // none available
         }
 
-        if(null == chooser && 0 <= recommendedIndex) {
+        if(null == chooser && 0 <= recommendedIndex && capsRequested.isBackgroundOpaque()) {
             if (DEBUG) {
-                System.err.println("chooseCapabilities: Using recommendedIndex: idx " + recommendedIndex);
+                System.err.println("chooseCapabilities: Using recommendedIndex (opaque): idx " + recommendedIndex);
             }
             return recommendedIndex;
         }