diff options
Diffstat (limited to 'src/classes/com/sun/opengl/impl/mipmap/Extract1555rev.java')
-rw-r--r-- | src/classes/com/sun/opengl/impl/mipmap/Extract1555rev.java | 97 |
1 files changed, 0 insertions, 97 deletions
diff --git a/src/classes/com/sun/opengl/impl/mipmap/Extract1555rev.java b/src/classes/com/sun/opengl/impl/mipmap/Extract1555rev.java deleted file mode 100644 index e1c59041a..000000000 --- a/src/classes/com/sun/opengl/impl/mipmap/Extract1555rev.java +++ /dev/null @@ -1,97 +0,0 @@ -/* - * License Applicability. Except to the extent portions of this file are - * made subject to an alternative license as permitted in the SGI Free - * Software License B, Version 1.1 (the "License"), the contents of this - * file are subject only to the provisions of the License. You may not use - * this file except in compliance with the License. You may obtain a copy - * of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 - * Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: - * - * http://oss.sgi.com/projects/FreeB - * - * Note that, as provided in the License, the Software is distributed on an - * "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS - * DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND - * CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A - * PARTICULAR PURPOSE, AND NON-INFRINGEMENT. - * - * NOTE: The Original Code (as defined below) has been licensed to Sun - * Microsystems, Inc. ("Sun") under the SGI Free Software License B - * (Version 1.1), shown above ("SGI License"). Pursuant to Section - * 3.2(3) of the SGI License, Sun is distributing the Covered Code to - * you under an alternative license ("Alternative License"). This - * Alternative License includes all of the provisions of the SGI License - * except that Section 2.2 and 11 are omitted. Any differences between - * the Alternative License and the SGI License are offered solely by Sun - * and not by SGI. - * - * Original Code. The Original Code is: OpenGL Sample Implementation, - * Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, - * Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. - * Copyright in any portions created by third parties is as indicated - * elsewhere herein. All Rights Reserved. - * - * Additional Notice Provisions: The application programming interfaces - * established by SGI in conjunction with the Original Code are The - * OpenGL(R) Graphics System: A Specification (Version 1.2.1), released - * April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version - * 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X - * Window System(R) (Version 1.3), released October 19, 1998. This software - * was created using the OpenGL(R) version 1.2.1 Sample Implementation - * published by SGI, but has not been independently verified as being - * compliant with the OpenGL(R) version 1.2.1 Specification. - */ - -package com.sun.opengl.impl.glu.mipmap; - -import java.nio.ByteBuffer; - -/** - * - * @author Administrator - */ -public class Extract1555rev implements Extract { - - /** Creates a new instance of Extract1555rev */ - public Extract1555rev() { - } - - public void extract( boolean isSwap, ByteBuffer packedPixel, float[] extractComponents ) { - int ushort = 0; - - if( isSwap ) { - ushort = 0x0000FFFF & Mipmap.GLU_SWAP_2_BYTES( packedPixel.getShort() ); - } else { - ushort = 0x0000FFFF & packedPixel.getShort(); - } - - // 00000000,00011111 == 0x001F - // 00000011,11100000 == 0x03E0 - // 01111100,00000000 == 0x7C00 - // 10000000,00000000 == 0x8000 - - extractComponents[0] = (float)( ( ushort & 0x001F ) ) / 31.0f; - extractComponents[1] = (float)( ( ushort & 0x003E ) >> 5 ) / 31.0f; - extractComponents[2] = (float)( ( ushort & 0x7C00 ) >> 10) / 31.0f; - extractComponents[3] = (float)( ( ushort & 0x8000 ) >> 15); - } - - public void shove( float[] shoveComponents, int index, ByteBuffer packedPixel ) { - // 00000000,00011111 == 0x001F - // 00000011,11100000 == 0x03E0 - // 01111100,00000000 == 0x7C00 - // 10000000,00000000 == 0x8000 - - assert( 0.0f <= shoveComponents[0] && shoveComponents[0] <= 1.0f ); - assert( 0.0f <= shoveComponents[1] && shoveComponents[1] <= 1.0f ); - assert( 0.0f <= shoveComponents[2] && shoveComponents[2] <= 1.0f ); - assert( 0.0f <= shoveComponents[3] && shoveComponents[3] <= 1.0f ); - - // due to limited precision, need to round before shoving - int ushort = (((int)((shoveComponents[0] * 31) + 0.5f) ) & 0x0000001F ); - ushort |= (((int)((shoveComponents[1] * 31) + 0.5f) << 5) & 0x000003E0 ); - ushort |= (((int)((shoveComponents[2] * 31) + 0.5f) << 10) & 0x00007C00 ); - ushort |= (((int)((shoveComponents[3]) + 0.5f) << 15) & 0x00008000 ); - packedPixel.asShortBuffer().put( index, (short)ushort ); - } -} |