| /* |
| * 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 Fetching category of |
| * the macros used by the generic scaleloop function. |
| * |
| * This implementation can load either 8-bit or 32-bit pixels from an |
| * array of bytes or longs where the data for pixel (srcX, srcY) is |
| * loaded from index (srcOff + srcY * srcScan + srcX) in the array. |
| * |
| * This file can be used to provide the default implementation of the |
| * Fetching macros to handle all input sizes. |
| */ |
| |
| #define DeclareInputVars \ |
| pixptr srcP; \ |
| int src32; |
| |
| #define InitInput(srcBPP) \ |
| do { \ |
| switch (srcBPP) { \ |
| case 8: src32 = 0; break; \ |
| case 32: src32 = 1; break; \ |
| default: \ |
| SignalError(0, JAVAPKG "InternalError", \ |
| "unsupported source depth"); \ |
| return SCALEFAILURE; \ |
| } \ |
| } while (0) |
| |
| #define SetInputRow(pixels, srcOff, srcScan, srcY, srcOY) \ |
| do { \ |
| srcP.vp = pixels; \ |
| if (src32) { \ |
| srcP.ip += srcOff + ((srcY-srcOY) * srcScan); \ |
| } else { \ |
| srcP.bp += srcOff + ((srcY-srcOY) * srcScan); \ |
| } \ |
| } while (0) |
| |
| #define GetPixelInc() \ |
| (src32 ? *srcP.ip++ : ((int) *srcP.bp++)) |
| |
| #define GetPixel(srcX) \ |
| (src32 ? srcP.ip[srcX] : ((int) srcP.bp[srcX])) |
| |
| #define InputPixelInc(X) \ |
| do { \ |
| if (src32) { \ |
| srcP.ip += X; \ |
| } else { \ |
| srcP.bp += X; \ |
| } \ |
| } while (0) |
| |
| #define VerifyPixelRange(pixel, mapsize) \ |
| do { \ |
| if (((unsigned int) pixel) >= mapsize) { \ |
| SignalError(0, JAVAPKG "ArrayIndexOutOfBoundsException", 0);\ |
| return SCALEFAILURE; \ |
| } \ |
| } while (0) |
