| /* |
| * Copyright (c) 1999, 2006, 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. |
| */ |
| |
| #ifdef HEADLESS |
| #error This file should not be included in headless library |
| #endif |
| |
| #ifdef MACOSX |
| #include <stdlib.h> |
| #endif |
| |
| #include "robot_common.h" |
| |
| /* |
| * QueryColorMap is taken from multiVis.c, part of the xwd distribution from |
| * X.org. It was moved here so it can be shared with awt_DataTransferer.c |
| */ |
| int32_t |
| QueryColorMap(Display *disp, |
| Colormap src_cmap, |
| Visual *src_vis, |
| XColor **src_colors, |
| int32_t *rShift, int32_t *gShift, int32_t *bShift) |
| |
| { |
| int32_t ncolors, i; |
| unsigned long redMask, greenMask, blueMask; |
| int32_t redShift, greenShift, blueShift; |
| XColor *colors ; |
| |
| ncolors = src_vis->map_entries ; |
| *src_colors = colors = (XColor *)calloc(ncolors,sizeof(XColor) ) ; |
| |
| if(src_vis->class != TrueColor && src_vis->class != DirectColor) |
| { |
| for(i=0 ; i < ncolors ; i++) |
| { |
| colors[i].pixel = i ; |
| colors[i].pad = 0; |
| colors[i].flags = DoRed|DoGreen|DoBlue; |
| } |
| } |
| else /** src is decomposed rgb ***/ |
| { |
| /* Get the X colormap */ |
| redMask = src_vis->red_mask; |
| greenMask = src_vis->green_mask; |
| blueMask = src_vis->blue_mask; |
| redShift = 0; while (!(redMask&0x1)) { |
| redShift++; |
| redMask = redMask>>1; |
| } |
| greenShift = 0; while (!(greenMask&0x1)) { |
| greenShift++; |
| greenMask = greenMask>>1; |
| } |
| blueShift = 0; while (!(blueMask&0x1)) { |
| blueShift++; |
| blueMask = blueMask>>1; |
| } |
| *rShift = redShift ; |
| *gShift = greenShift ; |
| *bShift = blueShift ; |
| for (i=0; i<ncolors; i++) { |
| if( (uint32_t)i <= redMask) colors[i].pixel = (i<<redShift) ; |
| if( (uint32_t)i <= greenMask) colors[i].pixel |= (i<<greenShift) ; |
| if( (uint32_t)i <= blueMask) colors[i].pixel |= (i<<blueShift) ; |
| /***** example :for gecko's 3-3-2 map, blue index should be <= 3 |
| . |
| colors[i].pixel = (i<<redShift)|(i<<greenShift)|(i<<blueShift); |
| *****/ |
| colors[i].pad = 0; |
| colors[i].flags = DoRed|DoGreen|DoBlue; |
| } |
| } |
| |
| XQueryColors(disp, src_cmap, colors, ncolors); |
| return ncolors ; |
| } |