X-Git-Url: https://git.sesse.net/?p=rdpsrv;a=blobdiff_plain;f=Xserver%2Fprograms%2FXserver%2Fhw%2Fvnc%2Ftableinitcmtemplate.c;fp=Xserver%2Fprograms%2FXserver%2Fhw%2Fvnc%2Ftableinitcmtemplate.c;h=a148f2c305e93c6e49e96f8b5c1a0e3060527a9e;hp=0000000000000000000000000000000000000000;hb=b6e6afccf37f4ad0515ef2a698f714fdf1bf23b3;hpb=e3340a110a3b01756b8e67531395a33b40a17d37 diff --git a/Xserver/programs/Xserver/hw/vnc/tableinitcmtemplate.c b/Xserver/programs/Xserver/hw/vnc/tableinitcmtemplate.c new file mode 100644 index 0000000..a148f2c --- /dev/null +++ b/Xserver/programs/Xserver/hw/vnc/tableinitcmtemplate.c @@ -0,0 +1,82 @@ +/* + * 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. + */ + +/* + * 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 CONCAT2E(CARD,OUT) +#define SwapOUT(x) CONCAT2E(Swap,OUT(x)) +#define rfbInitColourMapSingleTableOUT \ + CONCAT2E(rfbInitColourMapSingleTable,OUT) + +static void +rfbInitColourMapSingleTableOUT (char **table, rfbPixelFormat *in, + rfbPixelFormat *out) +{ + int i, r, g, b; + OUT_T *t; + EntryPtr pent; + int nEntries = 1 << in->bitsPerPixel; + + if (*table) free(*table); + *table = (char *)malloc(nEntries * sizeof(OUT_T)); + t = (OUT_T *)*table; + + pent = (EntryPtr)&rfbInstalledColormap->red[0]; + + for (i = 0; i < nEntries; i++) { + if (pent->fShared) { + r = pent->co.shco.red->color; + g = pent->co.shco.green->color; + b = pent->co.shco.blue->color; + } else { + r = pent->co.local.red; + g = pent->co.local.green; + b = pent->co.local.blue; + } + t[i] = ((((r * out->redMax + 32767) / 65535) << out->redShift) | + (((g * out->greenMax + 32767) / 65535) << out->greenShift) | + (((b * out->blueMax + 32767) / 65535) << out->blueShift)); +#if (OUT != 8) + if (out->bigEndian != in->bigEndian) { + t[i] = SwapOUT(t[i]); + } +#endif + pent++; + } +} + +#undef OUT_T +#undef SwapOUT +#undef rfbInitColourMapSingleTableOUT