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-rw-r--r--rdr/ZlibOutStream.cxx144
1 files changed, 0 insertions, 144 deletions
diff --git a/rdr/ZlibOutStream.cxx b/rdr/ZlibOutStream.cxx
deleted file mode 100644
index e324998..0000000
--- a/rdr/ZlibOutStream.cxx
+++ /dev/null
@@ -1,144 +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.
-
-#include <rdr/ZlibOutStream.h>
-#include <rdr/Exception.h>
-#include <zlib.h>
-
-extern "C" {
- extern void rfbLog(const char *format, ...);
-}
-
-using namespace rdr;
-
-enum { DEFAULT_BUF_SIZE = 16384 };
-
-ZlibOutStream::ZlibOutStream(OutStream* os, int bufSize_)
- : underlying(os), bufSize(bufSize_ ? bufSize_ : DEFAULT_BUF_SIZE), offset(0)
-{
- zs = new z_stream;
- zs->zalloc = Z_NULL;
- zs->zfree = Z_NULL;
- zs->opaque = Z_NULL;
- if (deflateInit(zs, Z_DEFAULT_COMPRESSION) != Z_OK) {
- delete zs;
- throw Exception("ZlibOutStream: deflateInit failed");
- }
- ptr = start = new U8[bufSize];
- end = start + bufSize;
-}
-
-ZlibOutStream::~ZlibOutStream()
-{
- try {
- flush();
- } catch (Exception&) {
- }
- delete [] start;
- deflateEnd(zs);
- delete zs;
-}
-
-void ZlibOutStream::setUnderlying(OutStream* os)
-{
- underlying = os;
-}
-
-int ZlibOutStream::length()
-{
- return offset + ptr - start;
-}
-
-void ZlibOutStream::flush()
-{
- zs->next_in = start;
- zs->avail_in = ptr - start;
-
-// rfbLog("zos flush: avail_in %d\n",zs->avail_in);
-
- while (zs->avail_in != 0) {
-
- do {
- underlying->check(1);
- zs->next_out = underlying->getptr();
- zs->avail_out = underlying->getend() - underlying->getptr();
-
-// rfbLog("zos flush: calling deflate, avail_in %d, avail_out %d\n",
-// zs->avail_in,zs->avail_out);
- int rc = deflate(zs, Z_SYNC_FLUSH);
- if (rc != Z_OK) throw Exception("ZlibOutStream: deflate failed");
-
-// rfbLog("zos flush: after deflate: %d bytes\n",
-// zs->next_out-underlying->getptr());
-
- underlying->setptr(zs->next_out);
- } while (zs->avail_out == 0);
- }
-
- offset += ptr - start;
- ptr = start;
-}
-
-int ZlibOutStream::overrun(int itemSize, int nItems)
-{
-// rfbLog("ZlibOutStream overrun\n");
-
- if (itemSize > bufSize)
- throw Exception("ZlibOutStream overrun: max itemSize exceeded");
-
- while (end - ptr < itemSize) {
- zs->next_in = start;
- zs->avail_in = ptr - start;
-
- do {
- underlying->check(1);
- zs->next_out = underlying->getptr();
- zs->avail_out = underlying->getend() - underlying->getptr();
-
-// rfbLog("zos overrun: calling deflate, avail_in %d, avail_out %d\n",
-// zs->avail_in,zs->avail_out);
-
- int rc = deflate(zs, 0);
- if (rc != Z_OK) throw Exception("ZlibOutStream: deflate failed");
-
-// rfbLog("zos overrun: after deflate: %d bytes\n",
-// zs->next_out-underlying->getptr());
-
- underlying->setptr(zs->next_out);
- } while (zs->avail_out == 0);
-
- // output buffer not full
-
- if (zs->avail_in == 0) {
- offset += ptr - start;
- ptr = start;
- } else {
- // but didn't consume all the data? try shifting what's left to the
- // start of the buffer.
- rfbLog("z out buf not full, but in data not consumed\n");
- memmove(start, zs->next_in, ptr - zs->next_in);
- offset += zs->next_in - start;
- ptr -= zs->next_in - start;
- }
- }
-
- if (itemSize * nItems > end - ptr)
- nItems = (end - ptr) / itemSize;
-
- return nItems;
-}