0N/A/*
2362N/A * Copyright (c) 1996, Oracle and/or its affiliates. All rights reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
2362N/A * published by the Free Software Foundation. Oracle designates this
0N/A * particular file as subject to the "Classpath" exception as provided
2362N/A * by Oracle in the LICENSE file that accompanied this code.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
2362N/A * or visit www.oracle.com if you need additional information or have any
2362N/A * questions.
0N/A */
0N/A
0N/A/*
0N/A * This file contains macro definitions for the Decoding category of
0N/A * the macros used by the generic scaleloop function.
0N/A *
0N/A * This implementation can decode the pixel information associated
0N/A * with any valid Java ColorModel object by dynamically invoking the
0N/A * getRGB method on that object. The implementation will also
0N/A * optimally handle pixel data coming from IndexColorModel and
0N/A * DirectColorModel objects so that it can be used as the default
0N/A * fallback implementation for corner cases without imposing the
0N/A * enormous performance penalty required for handling the custom
0N/A * ColorModel objects in those cases.
0N/A *
0N/A * This file can be used to provide the default implementation of the
0N/A * Decoding macros, handling all color conversion cases.
0N/A */
0N/A
0N/A/*
0N/A * These definitions vector the standard macro names to the "Any"
0N/A * versions of those macros. The "DecodeDeclared" keyword is also
0N/A * defined to indicate to the other include files that they are not
0N/A * defining the primary implementation. All other include files
0N/A * will check for the existance of the "DecodeDeclared" keyword
0N/A * and define their implementations of the Decoding macros using
0N/A * more specific names without overriding the standard names.
0N/A * This is done so that the other files can be included here to
0N/A * reuse their implementations for the specific optimization cases.
0N/A */
0N/A#define DecodeDeclared
0N/A#define DeclareDecodeVars DeclareAnyVars
0N/A#define InitPixelDecode InitPixelAny
0N/A#define PixelDecode PixelAnyDecode
0N/A
0N/A/* Include the optimal implementations for Index and Direct ColorModels */
0N/A#include "img_icm.h"
0N/A#include "img_dcm.h"
0N/A
0N/A#define ICMTYPE 0
0N/A#define DCMTYPE 1
0N/A#define OCMTYPE 2
0N/A
0N/A#define DeclareAnyVars \
0N/A DeclareICMVars \
0N/A DeclareDCMVars \
0N/A struct execenv *ee; \
0N/A struct methodblock *mb = 0; \
0N/A int CMtype;
0N/A
0N/A#define InitPixelAny(CM) \
0N/A do { \
0N/A Classjava_awt_image_ColorModel *cm = \
0N/A (Classjava_awt_image_ColorModel *) unhand(CM); \
0N/A ImgCMData *icmd = (ImgCMData *) cm->pData; \
0N/A if ((icmd->type & IMGCV_CMBITS) == IMGCV_ICM) { \
0N/A CMtype = ICMTYPE; \
0N/A InitPixelICM(cm); \
0N/A } else if (((icmd->type & IMGCV_CMBITS) == IMGCV_DCM) \
0N/A || ((icmd->type & IMGCV_CMBITS) == IMGCV_DCM8)) { \
0N/A CMtype = DCMTYPE; \
0N/A InitPixelDCM(cm); \
0N/A } else { \
0N/A CMtype = OCMTYPE; \
0N/A ee = EE(); \
0N/A mb = icmd->mb; \
0N/A } \
0N/A } while (0)
0N/A
0N/A#define PixelAnyDecode(CM, pixel, red, green, blue, alpha) \
0N/A do { \
0N/A switch (CMtype) { \
0N/A case ICMTYPE: \
0N/A PixelICMDecode(CM, pixel, red, green, blue, alpha); \
0N/A break; \
0N/A case DCMTYPE: \
0N/A PixelDCMDecode(CM, pixel, red, green, blue, alpha); \
0N/A break; \
0N/A case OCMTYPE: \
0N/A pixel = do_execute_java_method(ee, (void *) CM, \
0N/A "getRGB","(I)I", mb, \
0N/A FALSE, pixel); \
0N/A if (exceptionOccurred(ee)) { \
0N/A return SCALEFAILURE; \
0N/A } \
0N/A IfAlpha(alpha = pixel >> ALPHASHIFT;) \
0N/A red = (pixel >> REDSHIFT) & 0xff; \
0N/A green = (pixel >> GREENSHIFT) & 0xff; \
0N/A blue = (pixel >> BLUESHIFT) & 0xff; \
0N/A break; \
0N/A } \
0N/A } while (0)