/* * tableinitcmtemplate.c - template for initialising lookup tables for * translation from a colour map to true colour. * * This file shouldn't be compiled. It is included multiple times by * translate.c, each time with a different definition of the macro OUT. * For each value of OUT, this file defines a function which allocates an * appropriately sized lookup table and initialises it. * * I know this code isn't nice to read because of all the macros, but * efficiency is important here. */ /* * OSXvnc Copyright (C) 2001 Dan McGuirk . * Original Xvnc code Copyright (C) 1999 AT&T Laboratories Cambridge. * All Rights Reserved. * * This is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This software 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 for more details. * * You should have received a copy of the GNU General Public License * along with this software; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, * USA. */ #if !defined(OUT) #error "This file shouldn't be compiled." #error "It is included as part of translate.c" #endif #define OUT_T CONCAT3E(uint,OUT,_t) #define SwapOUT(x) CONCAT2E(Swap,OUT(x)) #define rfbInitColourMapSingleTableOUT \ CONCAT2E(rfbInitColourMapSingleTable,OUT) static void rfbInitColourMapSingleTableOUT(char **table, rfbPixelFormat *in, rfbPixelFormat *out,rfbColourMap* colourMap) { uint32_t i, r, g, b; OUT_T *t; uint32_t nEntries = 1 << in->bitsPerPixel; int shift = colourMap->is16?16:8; if (*table) free(*table); *table = (char *)malloc(nEntries * sizeof(OUT_T)); t = (OUT_T *)*table; for (i = 0; i < nEntries; i++) { r = g = b = 0; if(i < colourMap->count) { if(colourMap->is16) { r = colourMap->data.shorts[3*i+0]; g = colourMap->data.shorts[3*i+1]; b = colourMap->data.shorts[3*i+2]; } else { r = colourMap->data.bytes[3*i+0]; g = colourMap->data.bytes[3*i+1]; b = colourMap->data.bytes[3*i+2]; } } t[i] = ((((r * (1 + out->redMax)) >> shift) << out->redShift) | (((g * (1 + out->greenMax)) >> shift) << out->greenShift) | (((b * (1 + out->blueMax)) >> shift) << out->blueShift)); #if (OUT != 8) if (out->bigEndian != in->bigEndian) { t[i] = SwapOUT(t[i]); } #endif } } #undef OUT_T #undef SwapOUT #undef rfbInitColourMapSingleTableOUT