Bug 801: TextRegionUtil add 'special' for cache-key; Minor edits

Minor edits:
  - Add some docs to curve-shader and remove FIXME remark about gcu_Alpha, which will be used < 1.0.
  - Font: Add more TTF references

6 files changed, 22 insertions, 14 deletions

diff --git a/src/jogl/classes/com/jogamp/graph/curve/opengl/TextRegionUtil.java b/src/jogl/classes/com/jogamp/graph/curve/opengl/TextRegionUtil.java
index e7ed335ec..7e8ed4023 100644
--- a/src/jogl/classes/com/jogamp/graph/curve/opengl/TextRegionUtil.java
+++ b/src/jogl/classes/com/jogamp/graph/curve/opengl/TextRegionUtil.java
@@ -125,11 +125,12 @@ public class TextRegionUtil {
             throw new GLException("TextRendererImpl01: not initialized!");
         }
         final RenderState rs = renderer.getRenderState();
-        GLRegion region = getCachedRegion(font, str, pixelSize);
+        final int special = 0;
+        GLRegion region = getCachedRegion(font, str, pixelSize, special);
         if(null == region) {
             region = GLRegion.create(renderer.getRenderModes());
             addStringToRegion(region, rs.getVertexFactory(), font, str, pixelSize);
-            addCachedRegion(gl, font, str, pixelSize, region);
+            addCachedRegion(gl, font, str, pixelSize, special, region);
         }
         region.draw(gl, renderer, texSize);
     }
@@ -212,13 +213,13 @@ public class TextRegionUtil {
        }
    }
 
-   protected final GLRegion getCachedRegion(Font font, CharSequence str, int fontSize) {
-       return stringCacheMap.get(getKey(font, str, fontSize));
+   protected final GLRegion getCachedRegion(Font font, CharSequence str, int fontSize, int special) {
+       return stringCacheMap.get(getKey(font, str, fontSize, special));
    }
 
-   protected final void addCachedRegion(GL2ES2 gl, Font font, CharSequence str, int fontSize, GLRegion glyphString) {
+   protected final void addCachedRegion(GL2ES2 gl, Font font, CharSequence str, int fontSize, int special, GLRegion glyphString) {
        if ( 0 != getCacheLimit() ) {
-           final String key = getKey(font, str, fontSize);
+           final String key = getKey(font, str, fontSize, special);
            final GLRegion oldRegion = stringCacheMap.put(key, glyphString);
            if ( null == oldRegion ) {
                // new entry ..
@@ -228,8 +229,8 @@ public class TextRegionUtil {
        }
    }
 
-   protected final void removeCachedRegion(GL2ES2 gl, Font font, CharSequence str, int fontSize) {
-       final String key = getKey(font, str, fontSize);
+   protected final void removeCachedRegion(GL2ES2 gl, Font font, CharSequence str, int fontSize, int special) {
+       final String key = getKey(font, str, fontSize, special);
        GLRegion region = stringCacheMap.remove(key);
        if(null != region) {
            region.destroy(gl, renderer);
@@ -247,10 +248,10 @@ public class TextRegionUtil {
        }
    }
 
-   protected final String getKey(Font font, CharSequence str, int fontSize) {
+   protected final String getKey(Font font, CharSequence str, int fontSize, int special) {
        final StringBuilder sb = new StringBuilder();
        return font.getName(sb, Font.NAME_UNIQUNAME)
-              .append(".").append(str.hashCode()).append(".").append(fontSize).toString();
+              .append(".").append(str.hashCode()).append(".").append(fontSize).append(special).toString();
    }
 
    /** Default cache limit, see {@link #setCacheLimit(int)} */
diff --git a/src/jogl/classes/com/jogamp/graph/font/Font.java b/src/jogl/classes/com/jogamp/graph/font/Font.java
index 122015218..9758e4d41 100644
--- a/src/jogl/classes/com/jogamp/graph/font/Font.java
+++ b/src/jogl/classes/com/jogamp/graph/font/Font.java
@@ -35,6 +35,8 @@ import com.jogamp.opengl.math.geom.AABBox;
  *
  * TrueType Font Specification:
  *   http://developer.apple.com/fonts/ttrefman/rm06/Chap6.html
+ *   http://www.microsoft.com/typography/SpecificationsOverview.mspx
+ *   http://www.microsoft.com/typography/otspec/
  *
  * TrueType Font Table Introduction:
  *   http://scripts.sil.org/cms/scripts/page.php?item_id=IWS-Chapter08
@@ -76,6 +78,7 @@ public interface Font {
      *
      * http://developer.apple.com/textfonts/TTRefMan/RM06/Chap6cmap.html
      * http://developer.apple.com/textfonts/TTRefMan/RM06/Chap6glyf.html
+     * http://www.microsoft.com/typography/otspec/glyf.htm
      */
     public interface Glyph {
         // reserved special glyph IDs
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-1pass-weight.fp b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-1pass-weight.fp
index 7643dab7b..2248792cb 100644
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-1pass-weight.fp
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-1pass-weight.fp
@@ -45,7 +45,6 @@ void main (void)
             float gd = (aph*rtex.x*rtex.x + 2.0*rtex.x + 1.0)*(aph*rtex.x*rtex.x + 2.0*rtex.x + 1.0);

             vec2 f = vec2((dtx.y - (w*dtx.x*(1.0 - 2.0*rtex.x))/gd), (dty.y - (w*dty.x*(1.0 - 2.0*rtex.x))/gd));

 

-            // FIXME: will we ever set gcu_Alpha != 1.0 ? If not, a==alpha!

             float a = clamp(0.5 - ( position/length(f) ) * sign(gcv_TexCoord.y), 0.0, 1.0);

             alpha = gcu_Alpha * a;

         }

diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-1pass.fp b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-1pass.fp
index e12eef4b1..94e551832 100644
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-1pass.fp
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-1pass.fp
@@ -16,6 +16,14 @@
 
 void main (void)
 {
+    // CDTriangulator2D.extractBoundaryTriangles(..):
+    //     0 > gcv_TexCoord.y : hole or holeLike
+    //     0 < gcv_TexCoord.y : !hole (outer)
+    //      
+    //     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
+    //
     vec2 rtex = vec2(abs(gcv_TexCoord.x),abs(gcv_TexCoord.y));
     vec3 c = gcu_ColorStatic.rgb;
     
@@ -39,7 +47,6 @@ void main (void)
             vec2 f = vec2((dtx.y - dtx.x + 2.0*rtex.x*dtx.x), (dty.y - dty.x + 2.0*rtex.x*dty.x));
             float position = rtex.y - (rtex.x * (1.0 - rtex.x));
 
-            // FIXME: will we ever set gcu_Alpha != 1.0 ? If not, a==alpha!
             float a = clamp(0.5 - ( position/length(f) ) * sign(gcv_TexCoord.y), 0.0, 1.0);
             alpha = gcu_Alpha * a;
         }
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-2pass-weight.fp b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-2pass-weight.fp
index fb71abd14..e60556bc6 100644
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-2pass-weight.fp
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-2pass-weight.fp
@@ -87,7 +87,6 @@ void main (void)
             float gd = (aph*rtex.x*rtex.x + 2.0*rtex.x + 1.0)*(aph*rtex.x*rtex.x + 2.0*rtex.x + 1.0);

             vec2 f = vec2((dtx.y - (w*dtx.x*(1.0 - 2.0*rtex.x))/gd), (dty.y - (w*dty.x*(1.0 - 2.0*rtex.x))/gd));

 

-            // FIXME: will we ever set gcu_Alpha != 1.0 ? If not, a==alpha!

             float a = clamp(0.5 - ( position/length(f) ) * sign(gcv_TexCoord.y), 0.0, 1.0);

             alpha = gcu_Alpha * a;

         }

diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-2pass.fp b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-2pass.fp
index 8e5600dd9..0cf4cf88f 100644
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-2pass.fp
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-2pass.fp
@@ -81,7 +81,6 @@ void main (void)
             vec2 f = vec2((dtx.y - dtx.x + 2.0*rtex.x*dtx.x), (dty.y - dty.x + 2.0*rtex.x*dty.x));
             float position = rtex.y - (rtex.x * (1.0 - rtex.x));
 
-            // FIXME: will we ever set gcu_Alpha != 1.0 ? If not, a==alpha!
             float a = clamp(0.5 - ( position/length(f) ) * sign(gcv_TexCoord.y), 0.0, 1.0);
             alpha = gcu_Alpha * a;
         }