mirror of
https://invent.kde.org/network/krfb
synced 2024-07-08 12:05:49 +00:00
9f56633c0b
My patches in this local fork have been merged upstream, but they have been merged after 0.9.8 and 0.9.9 hasn't been released yet, so we cannot yet switch back to finding libvncserver externally. So I am syncing now with basically what is 0.9.8 + my patches and a few bugfixes. svn path=/trunk/KDE/kdenetwork/krfb/; revision=1258493
85 lines
2.8 KiB
C
85 lines
2.8 KiB
C
/*
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* tableinitcmtemplate.c - template for initialising lookup tables for
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* translation from a colour map to true colour.
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*
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* This file shouldn't be compiled. It is included multiple times by
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* translate.c, each time with a different definition of the macro OUT.
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* For each value of OUT, this file defines a function which allocates an
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* appropriately sized lookup table and initialises it.
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*
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* I know this code isn't nice to read because of all the macros, but
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* efficiency is important here.
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*/
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/*
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* OSXvnc Copyright (C) 2001 Dan McGuirk <mcguirk@incompleteness.net>.
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* Original Xvnc code Copyright (C) 1999 AT&T Laboratories Cambridge.
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* All Rights Reserved.
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*
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* This is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This software is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this software; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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* USA.
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*/
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#if !defined(OUT)
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#error "This file shouldn't be compiled."
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#error "It is included as part of translate.c"
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#endif
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#define OUT_T CONCAT3E(uint,OUT,_t)
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#define SwapOUT(x) CONCAT2E(Swap,OUT(x))
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#define rfbInitColourMapSingleTableOUT \
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CONCAT2E(rfbInitColourMapSingleTable,OUT)
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static void
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rfbInitColourMapSingleTableOUT(char **table, rfbPixelFormat *in,
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rfbPixelFormat *out,rfbColourMap* colourMap)
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{
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uint32_t i, r, g, b;
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OUT_T *t;
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uint32_t nEntries = 1 << in->bitsPerPixel;
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int shift = colourMap->is16?16:8;
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if (*table) free(*table);
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*table = (char *)malloc(nEntries * sizeof(OUT_T));
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t = (OUT_T *)*table;
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for (i = 0; i < nEntries; i++) {
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r = g = b = 0;
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if(i < colourMap->count) {
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if(colourMap->is16) {
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r = colourMap->data.shorts[3*i+0];
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g = colourMap->data.shorts[3*i+1];
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b = colourMap->data.shorts[3*i+2];
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} else {
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r = colourMap->data.bytes[3*i+0];
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g = colourMap->data.bytes[3*i+1];
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b = colourMap->data.bytes[3*i+2];
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}
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}
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t[i] = ((((r * (1 + out->redMax)) >> shift) << out->redShift) |
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(((g * (1 + out->greenMax)) >> shift) << out->greenShift) |
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(((b * (1 + out->blueMax)) >> shift) << out->blueShift));
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#if (OUT != 8)
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if (out->bigEndian != in->bigEndian) {
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t[i] = SwapOUT(t[i]);
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}
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#endif
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}
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}
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#undef OUT_T
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#undef SwapOUT
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#undef rfbInitColourMapSingleTableOUT
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