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-rw-r--r--zrle.cxx179
1 files changed, 0 insertions, 179 deletions
diff --git a/zrle.cxx b/zrle.cxx
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index f64580c..0000000
--- a/zrle.cxx
+++ /dev/null
@@ -1,179 +0,0 @@
-//
-// Copyright (C) 2002 RealVNC Ltd. 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.
-//
-
-//
-// zrle.cc
-//
-// Routines to implement Zlib Run-length Encoding (ZRLE).
-//
-
-extern "C" {
-#include <rfb/rfb.h>
-}
-#include <rdr/MemOutStream.h>
-#include <rdr/ZlibOutStream.h>
-
-
-#define GET_IMAGE_INTO_BUF(tx,ty,tw,th,buf) \
- char *fbptr = (cl->screen->frameBuffer \
- + (cl->screen->paddedWidthInBytes * ty) \
- + (tx * (cl->screen->bitsPerPixel / 8))); \
- \
- (*cl->translateFn)(cl->translateLookupTable, &cl->screen->rfbServerFormat,\
- &cl->format, fbptr, (char*)buf, \
- cl->screen->paddedWidthInBytes, tw, th);
-
-#define EXTRA_ARGS , rfbClientPtr cl
-
-#define BPP 8
-#include <zrleEncode.h>
-#undef BPP
-#define BPP 16
-#include <zrleEncode.h>
-#undef BPP
-#define BPP 32
-#include <zrleEncode.h>
-#define CPIXEL 24A
-#include <zrleEncode.h>
-#undef CPIXEL
-#define CPIXEL 24B
-#include <zrleEncode.h>
-#undef CPIXEL
-#undef BPP
-
-
-/*
- * zrleBeforeBuf contains pixel data in the client's format. It must be at
- * least one pixel bigger than the largest tile of pixel data, since the
- * ZRLE encoding algorithm writes to the position one past the end of the pixel
- * data.
- */
-
-static char zrleBeforeBuf[rfbZRLETileWidth * rfbZRLETileHeight * 4 + 4];
-
-static rdr::MemOutStream mos;
-
-
-/*
- * rfbSendRectEncodingZRLE - send a given rectangle using ZRLE encoding.
- */
-
-
-rfbBool rfbSendRectEncodingZRLE(rfbClientPtr cl, int x, int y, int w, int h)
-{
- if (!cl->zrleData) cl->zrleData = new rdr::ZlibOutStream;
- rdr::ZlibOutStream* zos = (rdr::ZlibOutStream*)cl->zrleData;
- mos.clear();
-
- switch (cl->format.bitsPerPixel) {
-
- case 8:
- zrleEncode8( x, y, w, h, &mos, zos, zrleBeforeBuf, cl);
- break;
-
- case 16:
- zrleEncode16(x, y, w, h, &mos, zos, zrleBeforeBuf, cl);
- break;
-
- case 32:
- bool fitsInLS3Bytes
- = ((cl->format.redMax << cl->format.redShift) < (1<<24) &&
- (cl->format.greenMax << cl->format.greenShift) < (1<<24) &&
- (cl->format.blueMax << cl->format.blueShift) < (1<<24));
-
- bool fitsInMS3Bytes = (cl->format.redShift > 7 &&
- cl->format.greenShift > 7 &&
- cl->format.blueShift > 7);
-
- if ((fitsInLS3Bytes && !cl->format.bigEndian) ||
- (fitsInMS3Bytes && cl->format.bigEndian))
- {
- zrleEncode24A(x, y, w, h, &mos, zos, zrleBeforeBuf, cl);
- }
- else if ((fitsInLS3Bytes && cl->format.bigEndian) ||
- (fitsInMS3Bytes && !cl->format.bigEndian))
- {
- zrleEncode24B(x, y, w, h, &mos, zos, zrleBeforeBuf, cl);
- }
- else
- {
- zrleEncode32(x, y, w, h, &mos, zos, zrleBeforeBuf, cl);
- }
- break;
- }
-
- cl->rfbRectanglesSent[rfbEncodingZRLE]++;
- cl->rfbBytesSent[rfbEncodingZRLE] += (sz_rfbFramebufferUpdateRectHeader
- + sz_rfbZRLEHeader + mos.length());
-
- if (cl->ublen + sz_rfbFramebufferUpdateRectHeader + sz_rfbZRLEHeader
- > UPDATE_BUF_SIZE)
- {
- if (!rfbSendUpdateBuf(cl))
- return FALSE;
- }
-
- rfbFramebufferUpdateRectHeader rect;
- rect.r.x = Swap16IfLE(x);
- rect.r.y = Swap16IfLE(y);
- rect.r.w = Swap16IfLE(w);
- rect.r.h = Swap16IfLE(h);
- rect.encoding = Swap32IfLE(rfbEncodingZRLE);
-
- memcpy(cl->updateBuf+cl->ublen, (char *)&rect,
- sz_rfbFramebufferUpdateRectHeader);
- cl->ublen += sz_rfbFramebufferUpdateRectHeader;
-
- rfbZRLEHeader hdr;
-
- hdr.length = Swap32IfLE(mos.length());
-
- memcpy(cl->updateBuf+cl->ublen, (char *)&hdr, sz_rfbZRLEHeader);
- cl->ublen += sz_rfbZRLEHeader;
-
- // copy into updateBuf and send from there. Maybe should send directly?
-
- for (int i = 0; i < mos.length();) {
-
- int bytesToCopy = UPDATE_BUF_SIZE - cl->ublen;
-
- if (i + bytesToCopy > mos.length()) {
- bytesToCopy = mos.length() - i;
- }
-
- memcpy(cl->updateBuf+cl->ublen, (uint8_t*)mos.data() + i, bytesToCopy);
-
- cl->ublen += bytesToCopy;
- i += bytesToCopy;
-
- if (cl->ublen == UPDATE_BUF_SIZE) {
- if (!rfbSendUpdateBuf(cl))
- return FALSE;
- }
- }
-
- return TRUE;
-}
-
-
-void FreeZrleData(rfbClientPtr cl)
-{
- delete (rdr::ZlibOutStream*)cl->zrleData;
-}
-