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authorSven Gothel <[email protected]>2014-02-24 13:32:34 +0100
committerSven Gothel <[email protected]>2014-02-24 13:32:34 +0100
commitc3621221b9a563495b4f54fe60e18e8db8cc57fb (patch)
tree00aded20f3582e517372c12f58e19d3524582099 /src/jogl/classes/com/jogamp/graph/curve/tess
parentf69df875d0b9f969a816d143ed589b25e50cd9e7 (diff)
Bug 802: Graph TextRenderer Performance Part-1 (incomplete, rendering artifacts)
Strategy Change: - Font.Glyph itself holds it's OutlineShape with it's default scaling. Triangulation is done only once per glyph! - A CharSequence produces a Region by translating and scaling each Glyphs's OutlineShape. This removes the need for re-triangulate - see above. See: TextRendererUtil - The indices of re-added Triangles are offset to the new vertices (FIXME, seems not be be accurate yet). - OutlineShape's vertices and triangles are reused if 'clean'. - Simplified code - Reduced copies API Changes: - OutlineShape, Region, ...: See above - Removed TextRenderer, GlyphShape and GlyphString: Redundant - Added TextRendererUtil to produce the Region from CharSequence Result: - Over 600 fps while changing text for each frame. Previously only ~60fps max. TODO: - Region shall not hold the triangles itself, but the indices instead. This will remove the need to swizzle w/ vertices in the Region Renderer impl and easies reusage of OutlineShapes.
Diffstat (limited to 'src/jogl/classes/com/jogamp/graph/curve/tess')
-rw-r--r--src/jogl/classes/com/jogamp/graph/curve/tess/Triangulator.java13
1 files changed, 7 insertions, 6 deletions
diff --git a/src/jogl/classes/com/jogamp/graph/curve/tess/Triangulator.java b/src/jogl/classes/com/jogamp/graph/curve/tess/Triangulator.java
index 4e8c400e0..39e84171b 100644
--- a/src/jogl/classes/com/jogamp/graph/curve/tess/Triangulator.java
+++ b/src/jogl/classes/com/jogamp/graph/curve/tess/Triangulator.java
@@ -28,7 +28,7 @@
package com.jogamp.graph.curve.tess;
-import java.util.ArrayList;
+import java.util.List;
import com.jogamp.graph.geom.Outline;
import com.jogamp.graph.geom.Triangle;
@@ -49,18 +49,19 @@ import com.jogamp.graph.geom.Triangle;
*/
public interface Triangulator {
- /** Add a curve to the list of Outlines
+ /**
+ * Add a curve to the list of Outlines
* describing the shape
+ * @param sink list where the generated triangles will be added
* @param outline a bounding {@link Outline}
*/
- public void addCurve(Outline outline);
+ public void addCurve(List<Triangle> sink, Outline outline);
/** Generate the triangulation of the provided
* List of {@link Outline}s
- * @return an arraylist of {@link Triangle}s resembling the
- * final shape.
+ * @param sink list where the generated triangles will be added
*/
- public ArrayList<Triangle> generate();
+ public void generate(List<Triangle> sink);
/** Reset the triangulation to initial state
* Clearing cached data