- /* Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved.
- * Copyright (C) 2005 Constantin Kaplinsky. All Rights Reserved.
- * Copyright 2014 Pierre Ossman for Cendio AB
- *
- * 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.
- */
-
- #ifdef HAVE_CONFIG_H
- #include <config.h>
- #endif
-
- #include <rfb/encodings.h>
- #include <rfb/SConnection.h>
- #include <rfb/HextileEncoder.h>
- #include <rfb/PixelBuffer.h>
- #include <rfb/Configuration.h>
-
- using namespace rfb;
-
- BoolParameter improvedHextile("ImprovedHextile",
- "Use improved compression algorithm for Hextile "
- "encoding which achieves better compression "
- "ratios by the cost of using more CPU time",
- true);
-
- #define BPP 8
- #include <rfb/hextileEncode.h>
- #include <rfb/hextileEncodeBetter.h>
- #undef BPP
- #define BPP 16
- #include <rfb/hextileEncode.h>
- #include <rfb/hextileEncodeBetter.h>
- #undef BPP
- #define BPP 32
- #include <rfb/hextileEncode.h>
- #include <rfb/hextileEncodeBetter.h>
- #undef BPP
-
- HextileEncoder::HextileEncoder(SConnection* conn) :
- Encoder(conn, encodingHextile, EncoderPlain)
- {
- }
-
- HextileEncoder::~HextileEncoder()
- {
- }
-
- bool HextileEncoder::isSupported()
- {
- return conn->client.supportsEncoding(encodingHextile);
- }
-
- void HextileEncoder::writeRect(const PixelBuffer* pb, const Palette& palette)
- {
- rdr::OutStream* os = conn->getOutStream();
- switch (pb->getPF().bpp) {
- case 8:
- if (improvedHextile) {
- hextileEncodeBetter8(os, pb);
- } else {
- hextileEncode8(os, pb);
- }
- break;
- case 16:
- if (improvedHextile) {
- hextileEncodeBetter16(os, pb);
- } else {
- hextileEncode16(os, pb);
- }
- break;
- case 32:
- if (improvedHextile) {
- hextileEncodeBetter32(os, pb);
- } else {
- hextileEncode32(os, pb);
- }
- break;
- }
- }
-
- void HextileEncoder::writeSolidRect(int width, int height,
- const PixelFormat& pf,
- const rdr::U8* colour)
- {
- rdr::OutStream* os;
- int tiles;
-
- os = conn->getOutStream();
-
- tiles = ((width + 15)/16) * ((height + 15)/16);
-
- os->writeU8(hextileBgSpecified);
- os->writeBytes(colour, pf.bpp/8);
- tiles--;
-
- while (tiles--)
- os->writeU8(0);
- }
|