1 /* 2 * Copyright (C) 1999 AT&T Laboratories Cambridge. All Rights Reserved. 3 * 4 * This is free software; you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License as published by 6 * the Free Software Foundation; either version 2 of the License, or 7 * (at your option) any later version. 8 * 9 * This software is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 * 14 * You should have received a copy of the GNU General Public License 15 * along with this software; if not, write to the Free Software 16 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 17 * USA. 18 */ 19 20 /* 21 * corre.c - handle CoRRE encoding. 22 * 23 * This file shouldn't be compiled directly. It is included multiple times by 24 * rfbproto.c, each time with a different definition of the macro BPP. For 25 * each value of BPP, this file defines a function which handles a CoRRE 26 * encoded rectangle with BPP bits per pixel. 27 */ 28 29 #define HandleCoRREBPP CONCAT2E(HandleCoRRE,BPP) 30 #define CARDBPP CONCAT3E(uint,BPP,_t) 31 32 static rfbBool 33 HandleCoRREBPP (rfbClient* client, int rx, int ry, int rw, int rh) 34 { 35 rfbRREHeader hdr; 36 int i; 37 CARDBPP pix; 38 uint8_t *ptr; 39 int x, y, w, h; 40 41 if (!ReadFromRFBServer(client, (char *)&hdr, sz_rfbRREHeader)) 42 return FALSE; 43 44 hdr.nSubrects = rfbClientSwap32IfLE(hdr.nSubrects); 45 46 if (!ReadFromRFBServer(client, (char *)&pix, sizeof(pix))) 47 return FALSE; 48 49 FillRectangle(client, rx, ry, rw, rh, pix); 50 51 if (!ReadFromRFBServer(client, client->buffer, hdr.nSubrects * (4 + (BPP / 8)))) 52 return FALSE; 53 54 ptr = (uint8_t *)client->buffer; 55 56 for (i = 0; i < hdr.nSubrects; i++) { 57 pix = *(CARDBPP *)ptr; 58 ptr += BPP/8; 59 x = *ptr++; 60 y = *ptr++; 61 w = *ptr++; 62 h = *ptr++; 63 64 FillRectangle(client, rx+x, ry+y, w, h, pix); 65 } 66 67 return TRUE; 68 } 69 70 #undef CARDBPP 71
