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authorKenneth Russel <[email protected]>2007-01-04 07:20:30 +0000
committerKenneth Russel <[email protected]>2007-01-04 07:20:30 +0000
commite4daa5d745f3d084e0c7180a88597b2582131b63 (patch)
tree3e5b35a4b3ec92a74abaa11228fabca32e11eae0 /src/classes/com/sun/opengl/util/GLUTBitmapHelvetica18.java
parent10c76681d1507fa527b59cb28bcde5d1c6a4fe18 (diff)
With extensive help from Phil Race and Chris Campbell from the Java 2D
team, added a TextRenderer class which enables high-performance rendering of bitmapped Java 2D fonts, with full Unicode support, into arbitrary OpenGL drawables using a simple API. Builds on top of the TextureRenderer class and its associated functionality; added createAlphaOnlyRenderer() and other methods to enable the TextRenderer. Caches rendering results on a string-by-string basis in an OpenGL texture using a fully automatic least-recently-used algorithm for good efficiency when rendering the same string or strings multiple times. Uses a rectangle packing algorithm, currently housed in com.sun.opengl.impl.packrect, for managing the positions of cached strings on a larger OpenGL texture to avoid OpenGL pipeline state changes. Added a TestTextRenderer demo which simply adds a moving text string and frames-per-second counter to the Gears demo; more sophisticated examples to come. (Some commented-out debugging code is being temporarily left in the new demo, to be removed in the next checkin, in order to have it in the version history.) git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/svn-server-sync/jogl/trunk@1067 232f8b59-042b-4e1e-8c03-345bb8c30851
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