blob: ad7b978ce421076d88c393fc56d4f1c28fa029b5 [file] [log] [blame]
/*
* Copyright (c) 1996, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* This file contains macro definitions for the Alpha category of the
* macros used by the generic scaleloop function.
*
* This implementation of the Alpha macros will ignore all alpha
* information. It also provides an empty expansion of the IfAlpha
* macro which keeps the other macro sets in the image package from
* wasting time and space on code to fetch or store the alpha
* information. This file is only applicable when the incoming
* data is known to be entirely opaque and there is not yet any
* image mask or alpha buffer associated with the output data.
*/
/*
* The macro IfAlpha is used by the varous pixel conversion macros
* to conditionally compile code that is only needed if alpha values
* are going to be used.
*/
#define IfAlpha(statements) /* Omit alpha handling code */
#define DeclareAlphaVars
#define InitAlpha(cvdata, dstY, dstX1, dstX2) \
do {} while (0)
#define StartAlphaRow(cvdata, DSTX1, DSTY) \
do {} while (0)
#define ApplyAlpha(cvdata, dstX, dstY, alpha) \
do {} while (0)
#define EndMaskLine() \
do {} while (0)