Migrating to new directory structure adopted from the RealVNC's source tree. More changes will follow.
git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@589 3789f03b-4d11-0410-bbf8-ca57d06f2519
diff --git a/common/rfb/TightDecoder.cxx b/common/rfb/TightDecoder.cxx
new file mode 100644
index 0000000..9f8c505
--- /dev/null
+++ b/common/rfb/TightDecoder.cxx
@@ -0,0 +1,159 @@
+/* Copyright (C) 2000-2003 Constantin Kaplinsky. All Rights Reserved.
+ * Copyright (C) 2004-2005 Cendio AB. 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 <rfb/CMsgReader.h>
+#include <rfb/CMsgHandler.h>
+#include <rfb/TightDecoder.h>
+#include <stdio.h> /* jpeglib.h needs FILE */
+extern "C" {
+#include <jpeglib.h>
+}
+
+using namespace rfb;
+
+#define RGB_TO_PIXEL(r,g,b) \
+ (((PIXEL_T)(r) & myFormat.redMax) << myFormat.redShift | \
+ ((PIXEL_T)(g) & myFormat.greenMax) << myFormat.greenShift | \
+ ((PIXEL_T)(b) & myFormat.blueMax) << myFormat.blueShift)
+
+#define RGB24_TO_PIXEL(r,g,b) \
+ ((((PIXEL_T)(r) & 0xFF) * myFormat.redMax + 127) / 255 \
+ << myFormat.redShift | \
+ (((PIXEL_T)(g) & 0xFF) * myFormat.greenMax + 127) / 255 \
+ << myFormat.greenShift | \
+ (((PIXEL_T)(b) & 0xFF) * myFormat.blueMax + 127) / 255 \
+ << myFormat.blueShift)
+
+#define RGB24_TO_PIXEL32(r,g,b) \
+ (((rdr::U32)(r) & 0xFF) << myFormat.redShift | \
+ ((rdr::U32)(g) & 0xFF) << myFormat.greenShift | \
+ ((rdr::U32)(b) & 0xFF) << myFormat.blueShift)
+
+#define TIGHT_MAX_WIDTH 2048
+
+static void JpegSetSrcManager(j_decompress_ptr cinfo, char *compressedData,
+ int compressedLen);
+static bool jpegError;
+
+#define EXTRA_ARGS CMsgHandler* handler
+#define FILL_RECT(r, p) handler->fillRect(r, p)
+#define IMAGE_RECT(r, p) handler->imageRect(r, p)
+#define BPP 8
+#include <rfb/tightDecode.h>
+#undef BPP
+#define BPP 16
+#include <rfb/tightDecode.h>
+#undef BPP
+#define BPP 32
+#include <rfb/tightDecode.h>
+#undef BPP
+
+Decoder* TightDecoder::create(CMsgReader* reader)
+{
+ return new TightDecoder(reader);
+}
+
+TightDecoder::TightDecoder(CMsgReader* reader_) : reader(reader_)
+{
+}
+
+TightDecoder::~TightDecoder()
+{
+}
+
+void TightDecoder::readRect(const Rect& r, CMsgHandler* handler)
+{
+ rdr::InStream* is = reader->getInStream();
+ /* Uncompressed RGB24 JPEG data, before translated, can be up to 3
+ times larger, if VNC bpp is 8. */
+ rdr::U8* buf = reader->getImageBuf(r.area()*3);
+ switch (reader->bpp()) {
+ case 8:
+ tightDecode8 (r, is, zis, (rdr::U8*) buf, handler); break;
+ case 16:
+ tightDecode16(r, is, zis, (rdr::U16*)buf, handler); break;
+ case 32:
+ tightDecode32(r, is, zis, (rdr::U32*)buf, handler); break;
+ }
+}
+
+
+//
+// A "Source manager" for the JPEG library.
+//
+
+static struct jpeg_source_mgr jpegSrcManager;
+static JOCTET *jpegBufferPtr;
+static size_t jpegBufferLen;
+
+static void JpegInitSource(j_decompress_ptr cinfo);
+static boolean JpegFillInputBuffer(j_decompress_ptr cinfo);
+static void JpegSkipInputData(j_decompress_ptr cinfo, long num_bytes);
+static void JpegTermSource(j_decompress_ptr cinfo);
+
+static void
+JpegInitSource(j_decompress_ptr cinfo)
+{
+ jpegError = false;
+}
+
+static boolean
+JpegFillInputBuffer(j_decompress_ptr cinfo)
+{
+ jpegError = true;
+ jpegSrcManager.bytes_in_buffer = jpegBufferLen;
+ jpegSrcManager.next_input_byte = (JOCTET *)jpegBufferPtr;
+
+ return TRUE;
+}
+
+static void
+JpegSkipInputData(j_decompress_ptr cinfo, long num_bytes)
+{
+ if (num_bytes < 0 || (size_t)num_bytes > jpegSrcManager.bytes_in_buffer) {
+ jpegError = true;
+ jpegSrcManager.bytes_in_buffer = jpegBufferLen;
+ jpegSrcManager.next_input_byte = (JOCTET *)jpegBufferPtr;
+ } else {
+ jpegSrcManager.next_input_byte += (size_t) num_bytes;
+ jpegSrcManager.bytes_in_buffer -= (size_t) num_bytes;
+ }
+}
+
+static void
+JpegTermSource(j_decompress_ptr cinfo)
+{
+ /* No work necessary here. */
+}
+
+static void
+JpegSetSrcManager(j_decompress_ptr cinfo, char *compressedData, int compressedLen)
+{
+ jpegBufferPtr = (JOCTET *)compressedData;
+ jpegBufferLen = (size_t)compressedLen;
+
+ jpegSrcManager.init_source = JpegInitSource;
+ jpegSrcManager.fill_input_buffer = JpegFillInputBuffer;
+ jpegSrcManager.skip_input_data = JpegSkipInputData;
+ jpegSrcManager.resync_to_restart = jpeg_resync_to_restart;
+ jpegSrcManager.term_source = JpegTermSource;
+ jpegSrcManager.next_input_byte = jpegBufferPtr;
+ jpegSrcManager.bytes_in_buffer = jpegBufferLen;
+
+ cinfo->src = &jpegSrcManager;
+}