| /* |
| * 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 <mcguirk@incompleteness.net>. |
| * 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 |