1 /* 2 * Copyright (c) 1999, 2012, 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 #ifdef HEADLESS 27 #error This file should not be included in headless library 28 #endif 29 30 #ifdef MACOSX 31 #include <stdlib.h> 32 #endif 33 34 #include "robot_common.h" 35 36 /* 37 * QueryColorMap is taken from multiVis.c, part of the xwd distribution from 38 * X.org. It was moved here so it can be shared with awt_DataTransferer.c 39 */ 40 int32_t 41 QueryColorMap(Display *disp, 42 Colormap src_cmap, 43 Visual *src_vis, 44 XColor **src_colors, 45 int32_t *rShift, int32_t *gShift, int32_t *bShift) 46 47 { 48 int32_t ncolors, i; 49 unsigned long redMask, greenMask, blueMask; 50 int32_t redShift, greenShift, blueShift; 51 XColor *colors ; 52 53 ncolors = src_vis->map_entries ; 54 *src_colors = colors = (XColor *)calloc(ncolors,sizeof(XColor) ) ; 55 56 if(src_vis->class != TrueColor && src_vis->class != DirectColor) 57 { 58 for(i=0 ; i < ncolors ; i++) 59 { 60 colors[i].pixel = i ; 61 colors[i].pad = 0; 62 colors[i].flags = DoRed|DoGreen|DoBlue; 63 } 64 } 65 else /** src is decomposed rgb ***/ 66 { 67 /* Get the X colormap */ 68 redMask = src_vis->red_mask; 69 greenMask = src_vis->green_mask; 70 blueMask = src_vis->blue_mask; 71 redShift = 0; while (!(redMask&0x1)) { 72 redShift++; 73 redMask = redMask>>1; 74 } 75 greenShift = 0; while (!(greenMask&0x1)) { 76 greenShift++; 77 greenMask = greenMask>>1; 78 } 79 blueShift = 0; while (!(blueMask&0x1)) { 80 blueShift++; 81 blueMask = blueMask>>1; 82 } 83 *rShift = redShift ; 84 *gShift = greenShift ; 85 *bShift = blueShift ; 86 for (i=0; i<ncolors; i++) { 87 if( (uint32_t)i <= redMask) colors[i].pixel = (i<<redShift) ; 88 if( (uint32_t)i <= greenMask) colors[i].pixel |= (i<<greenShift) ; 89 if( (uint32_t)i <= blueMask) colors[i].pixel |= (i<<blueShift) ; 90 /***** example :for gecko's 3-3-2 map, blue index should be <= 3 91 . 92 colors[i].pixel = (i<<redShift)|(i<<greenShift)|(i<<blueShift); 93 *****/ 94 colors[i].pad = 0; 95 colors[i].flags = DoRed|DoGreen|DoBlue; 96 } 97 } 98 99 XQueryColors(disp, src_cmap, colors, ncolors); 100 return ncolors ; 101 }