| /* |
| * 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 8-bit or 16-bit pixels into an array |
| * of bytes or shorts such that the pixel for (srcX, srcY) is stored at |
| * index (srcOff + srcY * srcScan + srcX) in the array. |
| * |
| * This implementation can also 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; \ |
| int pixsz; |
| |
| #define InitOutput(cvdata, clrdata, dstX, dstY) \ |
| do { \ |
| switch (clrdata->bitsperpixel) { \ |
| case 8: pixsz = 1; break; \ |
| case 16: pixsz = 2; break; \ |
| case 24: pixsz = 3; break; \ |
| default: \ |
| SignalError(0, JAVAPKG "InternalError", \ |
| "unsupported screen depth"); \ |
| return SCALEFAILURE; \ |
| } \ |
| img_check(pixsz != 2 || (ScanBytes(cvdata) & 1) == 0); \ |
| dstP.vp = cvdata->outbuf; \ |
| dstP.bp += dstY * ScanBytes(cvdata) + dstX * pixsz; \ |
| } while (0) |
| |
| #define PutPixelInc(pixel, red, green, blue) \ |
| do { \ |
| switch (pixsz) { \ |
| case 1: \ |
| *dstP.bp++ = ((unsigned char) pixel); \ |
| break; \ |
| case 2: \ |
| *dstP.sp++ = ((unsigned short) pixel); \ |
| break; \ |
| case 3: \ |
| *dstP.bp++ = blue; \ |
| *dstP.bp++ = green; \ |
| *dstP.bp++ = red; \ |
| break; \ |
| } \ |
| } while (0) |
| |
| #define EndOutputRow(cvdata, dstY, dstX1, dstX2) \ |
| do { \ |
| SendRow(cvdata, dstY, dstX1, dstX2); \ |
| dstP.bp += ScanBytes(cvdata) - (dstX2 - dstX1) * pixsz; \ |
| } while (0) |
| |
| #define EndOutputRect(cvdata, dstX1, dstY1, dstX2, dstY2) \ |
| SendBuffer(cvdata, dstX1, dstY1, dstX2, dstY2) |
