blob: bc6e8bb051dffbb1a5eda251661dd9840de8f1a1 [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 Storing category of
* the macros used by the generic scaleloop function.
*
* This implementation can store 24-bit pixels into an array of bytes
* as three consecutive bytes such that the pixel for (srcX, srcY) is
* stored at indices (srcOff + srcY * srcScan + srcX * 3 + C) in the
* array, where C == 0 for the blue component, 1 for the green component,
* and 2 for the red component.
*/
#define DeclareOutputVars \
pixptr dstP;
#define InitOutput(cvdata, clrdata, dstX, dstY) \
do { \
img_check(clrdata->bitsperpixel == 24); \
dstP.vp = cvdata->outbuf; \
dstP.bp += dstY * ScanBytes(cvdata) + dstX * 3; \
} while (0)
#define PutPixelInc(pixel, red, green, blue) \
do { \
*dstP.bp++ = blue; \
*dstP.bp++ = green; \
*dstP.bp++ = red; \
} while (0)
#define EndOutputRow(cvdata, dstY, dstX1, dstX2) \
do { \
SendRow(cvdata, dstY, dstX1, dstX2); \
dstP.bp += ScanBytes(cvdata) - (dstX2 - dstX1) * 3; \
} while (0)
#define EndOutputRect(cvdata, dstX1, dstY1, dstX2, dstY2) \
SendBuffer(cvdata, dstX1, dstY1, dstX2, dstY2)