Bug 801: Revise Graph VBAA (Add border dropping MSAA; Test diff. AA modes incl. FXAA2) ; Test exp. LineAA ; Misc Changes

- Revise VBAA
  - Add border to FBO dropping MSAA
    - This automatically gives AA for edges on FBO boundary

  - Correcting ceil-diff, use object-diff instead of win-diff (diff := ceil(a)-a, w/ float a)

  - Reorg shader - using includes to test diff. AA modes:
    - [poles, wholeedge] * [equalweight, propweight]
    - fxaa2

- Exp. LineAA (disabled)
  - Test ROESSLER-2012-OGLES for detected rectangles only
  - Test boundary line detection

See screenshots: <http://jogamp.org/files/screenshots/graphui/20140322/>

1 files changed, 14 insertions, 1 deletions

diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/attributes.glsl b/src/jogl/classes/jogamp/graph/curve/opengl/shader/attributes.glsl
index 108247c9c..c4d9db535 100644
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/attributes.glsl
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/shader/attributes.glsl
@@ -4,7 +4,20 @@
 
 // attribute vec3    gca_Vertices;
 attribute vec4    gca_Vertices;
-attribute vec2    gca_TexCoords;
+
+/**
+ * CDTriangulator2D.extractBoundaryTriangles(..):
+ *     AA line (exp)   : z > 0
+ *     line            : x ==   0, y == 0
+ *     hole or holeLike: 0 > y
+ *     !hole           : 0 < y 
+ *      
+ *     0   == gcv_TexCoord.x : vertex-0 of triangle
+ *     0.5 == gcv_TexCoord.x : vertex-1 of triangle
+ *     1   == gcv_TexCoord.x : vertex-2 of triangle
+ */
+attribute vec3    gca_TexCoords;
+
 //attribute vec4    gca_Colors;
 //attribute vec3    gca_Normals;