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 24-bit pixels into an array of bytes 31 * as three consecutive bytes such that the pixel for (srcX, srcY) is 32 * stored at indices (srcOff + srcY * srcScan + srcX * 3 + C) in the 33 * array, where C == 0 for the blue component, 1 for the green component, 34 * and 2 for the red component. 35 */ 36 37 #define DeclareOutputVars \ 38 pixptr dstP; 39 40 #define InitOutput(cvdata, clrdata, dstX, dstY) \ 41 do { \ 42 img_check(clrdata->bitsperpixel == 24); \ 43 dstP.vp = cvdata->outbuf; \ 44 dstP.bp += dstY * ScanBytes(cvdata) + dstX * 3; \ 45 } while (0) 46 47 #define PutPixelInc(pixel, red, green, blue) \ 48 do { \ 49 *dstP.bp++ = blue; \ 50 *dstP.bp++ = green; \ 51 *dstP.bp++ = red; \ 52 } while (0) 53 54 #define EndOutputRow(cvdata, dstY, dstX1, dstX2) \ 55 do { \ 56 SendRow(cvdata, dstY, dstX1, dstX2); \ 57 dstP.bp += ScanBytes(cvdata) - (dstX2 - dstX1) * 3; \ 58 } while (0) 59 60 #define EndOutputRect(cvdata, dstX1, dstY1, dstX2, dstY2) \ 61 SendBuffer(cvdata, dstX1, dstY1, dstX2, dstY2) 62