public void render() { try { int regionBufferSize = 0; int[] regionBuffer = null; Kdu_dims newRegion = new Kdu_dims(); long kduRenderStart = System.nanoTime(); while (compositor.Process(100000, newRegion)) { Kdu_coords newOffset = newRegion.Access_pos(); Kdu_coords newSize = newRegion.Access_size(); newOffset.Subtract(viewDims.Access_pos()); int newPixels = newSize.Get_x() * newSize.Get_y(); if (newPixels == 0) continue; else if (newPixels > regionBufferSize) { regionBufferSize = newPixels; regionBuffer = new int[regionBufferSize]; } compositorBuffer.Get_region(newRegion, regionBuffer); imagePanel.putRegion( viewSize.Get_x(), viewSize.Get_y(), newSize.Get_x(), newSize.Get_y(), newOffset.Get_x(), newOffset.Get_y(), regionBuffer); } long kduRenderEnd = System.nanoTime(); System.out.printf( "Processed using %d concurrent threads of execution in %.4fms\n", threadEnv.Get_num_threads(), (kduRenderEnd - kduRenderStart) * 1e-6); imagePanel.repaint(); } catch (KduException e) { System.err.printf( "Caught exception '%s'; code '%s'\n", e.getMessage(), Integer.toHexString(e.Get_kdu_exception_code())); } }