diff options
Diffstat (limited to 'src/jogl/classes/com/jogamp/opengl/util')
| -rw-r--r-- | src/jogl/classes/com/jogamp/opengl/util/GLBuffers.java | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/jogl/classes/com/jogamp/opengl/util/GLBuffers.java b/src/jogl/classes/com/jogamp/opengl/util/GLBuffers.java index f2e742cda..62441d8b8 100644 --- a/src/jogl/classes/com/jogamp/opengl/util/GLBuffers.java +++ b/src/jogl/classes/com/jogamp/opengl/util/GLBuffers.java @@ -491,6 +491,19 @@ public class GLBuffers extends Buffers { return sizeof(gl, tmp, elements * esize, width, height, depth, pack); } + + public static final int getNextPowerOf2(int number) { + if (((number-1) & number) == 0) { + //ex: 8 -> 0b1000; 8-1=7 -> 0b0111; 0b1000&0b0111 == 0 + return number; + } + int power = 0; + while (number > 0) { + number = number>>1; + power++; + } + return (1<<power); + } //---------------------------------------------------------------------- // Conversion routines |