1/*
2 * Copyright (c) 1996, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26/*
27 * This file contains macro definitions for the Storing category of
28 * the macros used by the generic scaleloop function.
29 *
30 * This implementation can store 16-bit pixels into an array of
31 * shorts such that the pixel for (srcX, srcY) is stored at index
32 * (srcOff + srcY * srcScan + srcX) in the array.
33 */
34
35#define DeclareOutputVars                               \
36    pixptr dstP;
37
38#define InitOutput(cvdata, clrdata, dstX, dstY)                 \
39    do {                                                        \
40        img_check(clrdata->bitsperpixel == 16);                 \
41        img_check((ScanBytes(cvdata) & 1) == 0);                \
42        dstP.vp = cvdata->outbuf;                               \
43        dstP.bp += dstY * ScanBytes(cvdata);                    \
44        dstP.sp += dstX;                                        \
45    } while (0)
46
47#define PutPixelInc(pixel, red, green, blue)                    \
48    *dstP.sp++ = ((unsigned short) pixel)
49
50#define EndOutputRow(cvdata, dstY, dstX1, dstX2)                \
51    do {                                                        \
52        SendRow(cvdata, dstY, dstX1, dstX2);                    \
53        dstP.sp -= (dstX2 - dstX1);                             \
54        dstP.bp += ScanBytes(cvdata);                           \
55    } while (0)
56
57#define EndOutputRect(cvdata, dstX1, dstY1, dstX2, dstY2)       \
58    SendBuffer(cvdata, dstX1, dstY1, dstX2, dstY2)
59