Imported nxcompext-3.1.0-2.tar.gz

nxcompext/Alpha.c

+/**************************************************************************/
+/*                                                                        */
+/* Copyright (c) 2001, 2007 NoMachine, http://www.nomachine.com/.         */
+/*                                                                        */
+/* NXCOMPEXT, NX protocol compression and NX extensions to this software  */
+/* are copyright of NoMachine. Redistribution and use of the present      */
+/* software is allowed according to terms specified in the file LICENSE   */
+/* which comes in the source distribution.                                */
+/*                                                                        */
+/* Check http://www.nomachine.com/licensing.html for applicability.       */
+/*                                                                        */
+/* NX and NoMachine are trademarks of NoMachine S.r.l.                    */
+/*                                                                        */
+/* All rigths reserved.                                                   */
+/*                                                                        */
+/**************************************************************************/
+
+#include <zlib.h>
+
+#include "NXlib.h"
+
+#include "Alpha.h"
+#include "Z.h"
+
+#define PANIC
+#define WARNING
+#undef  TEST
+#undef  DEBUG
+
+#define ALPHA_COMPRESSION_LEVEL      1
+#define ALPHA_COMPRESSION_THRESHOLD  32
+#define ALPHA_COMPRESSION_STRATEGY   Z_RLE
+
+static int alphaCompressionLevel     = ALPHA_COMPRESSION_LEVEL;
+static int alphaCompressionThreshold = ALPHA_COMPRESSION_THRESHOLD;
+static int alphaCompressionStrategy  = ALPHA_COMPRESSION_STRATEGY;
+
+char *AlphaCompressData(const char *data, unsigned int size, unsigned int *compressed_size)
+{
+  return ZCompressData(data, size, alphaCompressionThreshold, alphaCompressionLevel,
+                           alphaCompressionStrategy, compressed_size);
+}

nxcompext/Alpha.h

+/**************************************************************************/
+/*                                                                        */
+/* Copyright (c) 2001, 2007 NoMachine, http://www.nomachine.com/.         */
+/*                                                                        */
+/* NXCOMPEXT, NX protocol compression and NX extensions to this software  */
+/* are copyright of NoMachine. Redistribution and use of the present      */
+/* software is allowed according to terms specified in the file LICENSE   */
+/* which comes in the source distribution.                                */
+/*                                                                        */
+/* Check http://www.nomachine.com/licensing.html for applicability.       */
+/*                                                                        */
+/* NX and NoMachine are trademarks of NoMachine S.r.l.                    */
+/*                                                                        */
+/* All rigths reserved.                                                   */
+/*                                                                        */
+/**************************************************************************/
+
+#ifndef Alpha_H
+#define Alpha_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern char *AlphaCompressData(
+#if NeedFunctionPrototypes
+    const char*       /* data */,
+    unsigned int      /* size */,
+    unsigned int*     /* compressed_size */
+#endif
+);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* Alpha_H */

nxcompext/Bitmap.c

+/**************************************************************************/
+/*                                                                        */
+/* Copyright (c) 2001, 2007 NoMachine, http://www.nomachine.com/.         */
+/*                                                                        */
+/* NXCOMPEXT, NX protocol compression and NX extensions to this software  */
+/* are copyright of NoMachine. Redistribution and use of the present      */
+/* software is allowed according to terms specified in the file LICENSE   */
+/* which comes in the source distribution.                                */
+/*                                                                        */
+/* Check http://www.nomachine.com/licensing.html for applicability.       */
+/*                                                                        */
+/* NX and NoMachine are trademarks of NoMachine S.r.l.                    */
+/*                                                                        */
+/* All rigths reserved.                                                   */
+/*                                                                        */
+/**************************************************************************/
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "NXlib.h"
+
+#include "Bitmap.h"
+
+#define PANIC
+#define WARNING
+#undef  TEST
+#undef  DEBUG
+
+char *BitmapCompressData(XImage *image, unsigned int *size)
+{
+  if (image -> bits_per_pixel != 32)
+  {
+    #ifdef TEST
+    fprintf(stderr, "******BitmapCompressData: Nothing to do with image of [%d] bpp and size [%d].\n",
+                image -> bits_per_pixel, image -> bytes_per_line * image -> height);
+    #endif
+
+    *size = image -> bytes_per_line * image -> height;
+
+    return image -> data;
+  }
+  else
+  {
+    /*
+     * Remove the 4th byte from the bitmap.
+     */
+
+    char *data;
+
+    char *next_src;
+    char *next_dst;
+
+    #ifdef TEST
+
+    if (image -> bytes_per_line != 4 * image -> width)
+    {
+      fprintf(stderr, "******BitmapCompressData: PANIC! Image as [%d] bytes per line with expected [%d].\n",
+                  image -> bytes_per_line, 4 * image -> width);
+
+      return NULL;
+    }
+
+    #endif
+
+    *size = image -> width * image -> height * 3;
+
+    data = Xmalloc(*size);
+
+    if (data == NULL)
+    {
+      #ifdef PANIC
+      fprintf(stderr, "******BitmapCompressData: PANIC! Failed to allocate [%d] bytes for the destination.\n",
+                  *size);
+      #endif
+
+      *size = image -> bytes_per_line * image -> height;
+
+      return image -> data;
+    }
+
+    next_src = image -> data;
+    next_dst = data;
+
+    if (image -> byte_order == LSBFirst)
+    {
+      while (next_src < image -> data +
+                 image -> bytes_per_line * image -> height)
+      {
+        *next_dst++ = *next_src++;
+        *next_dst++ = *next_src++;
+        *next_dst++ = *next_src++;
+
+        next_src++;
+      }
+    }
+    else
+    {
+      while (next_src < image -> data +
+                 image -> bytes_per_line * image -> height)
+      {
+        next_src++;
+
+        *next_dst++ = *next_src++;
+        *next_dst++ = *next_src++;
+        *next_dst++ = *next_src++;
+      }
+    }
+
+    return data;
+  }
+}

nxcompext/Bitmap.h

+/**************************************************************************/
+/*                                                                        */
+/* Copyright (c) 2001, 2007 NoMachine, http://www.nomachine.com/.         */
+/*                                                                        */
+/* NXCOMPEXT, NX protocol compression and NX extensions to this software  */
+/* are copyright of NoMachine. Redistribution and use of the present      */
+/* software is allowed according to terms specified in the file LICENSE   */
+/* which comes in the source distribution.                                */
+/*                                                                        */
+/* Check http://www.nomachine.com/licensing.html for applicability.       */
+/*                                                                        */
+/* NX and NoMachine are trademarks of NoMachine S.r.l.                    */
+/*                                                                        */
+/* All rigths reserved.                                                   */
+/*                                                                        */
+/**************************************************************************/
+
+#ifndef Bitmap_H
+#define Bitmap_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern char *BitmapCompressData(
+#if NeedFunctionPrototypes
+    XImage*                   /* image */,
+    unsigned int*             /* compressed_size */
+#endif
+);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* Bitmap_H */

nxcompext/Clean.c

+/**************************************************************************/
+/*                                                                        */
+/* Copyright (c) 2001, 2007 NoMachine, http://www.nomachine.com/.         */
+/*                                                                        */
+/* NXCOMPEXT, NX protocol compression and NX extensions to this software  */
+/* are copyright of NoMachine. Redistribution and use of the present      */
+/* software is allowed according to terms specified in the file LICENSE   */
+/* which comes in the source distribution.                                */
+/*                                                                        */
+/* Check http://www.nomachine.com/licensing.html for applicability.       */
+/*                                                                        */
+/* NX and NoMachine are trademarks of NoMachine S.r.l.                    */
+/*                                                                        */
+/* All rigths reserved.                                                   */
+/*                                                                        */
+/**************************************************************************/
+
+#include <stdio.h>
+#include <signal.h>
+
+#include "os.h"
+
+#include "NXlib.h"
+
+#include "Clean.h"
+
+#define PANIC
+#define WARNING
+#undef  TEST
+#undef  DEBUG
+
+int CleanXYImage(XImage *image)
+{
+  int i, j, k, plane;
+
+  int bitsToClean = (image -> bytes_per_line << 3) - image -> width - image -> xoffset;
+
+  unsigned int bytesToClean = bitsToClean >> 3;
+
+  bitsToClean &= 7;
+
+  for (k = 0; k < image -> depth; k++)
+  {
+    plane = k * (image -> bytes_per_line * image -> height);
+
+    for (i = 1; i <= image -> height; i++)
+    {
+      if (image -> byte_order == image -> bitmap_bit_order)
+      {
+        for (j = 1; j <= bytesToClean; j++)
+        {
+          image -> data[plane + i * (image -> bytes_per_line) - j] = 0x00;
+        }
+      }
+      else
+      {
+        for (j = bytesToClean; j >= 1; j--)
+        {
+          image -> data[plane + i * (image -> bytes_per_line) - j] = 0x00;
+        }
+      }
+
+      if (image -> bitmap_bit_order == MSBFirst)
+      {
+        image -> data[plane + i * (image -> bytes_per_line) - j] &= 0xff << bitsToClean;
+      }
+      else
+      {
+        image -> data[plane + i * (image -> bytes_per_line) - j] &= 0xff >> bitsToClean;
+      }
+    }
+  }
+
+  return 1;
+}
+
+int CleanZImage(XImage *image)
+{
+  unsigned int bytesToClean;
+  unsigned int j;
+  unsigned int imageLength;
+
+  #ifdef TEST
+  fprintf(stderr, "*****CleanZImage: Going to clean image of [%d] bits per pixel.\n",
+              image -> bits_per_pixel);
+  #endif
+
+  switch (image -> bits_per_pixel)
+  {
+    case 32:
+    {
+      /*
+       * The caller should pay attention at extracting
+       * the alpha channel prior to cleaning the image.
+       * Cleaning an image which is carrying the alpha
+       * channel will result in the image being treated
+       * as fully transparent.
+       */
+
+      register int i;
+
+      bytesToClean = image -> bytes_per_line * image -> height;
+
+      #ifdef DEBUG
+      fprintf(stderr, "*****CleanZImage: Cleaning [%d] bytes with bits per pixel [%d] "
+                  "width [%d] bytes per line [%d] height [%d].\n", bytesToClean,
+                      image -> bits_per_pixel, image -> width, image ->
+                          bytes_per_line, image -> height);
+      #endif
+
+      if (image -> byte_order == LSBFirst)
+      {
+        for (i = 3; i < bytesToClean; i += 4)
+        {
+          ((unsigned char *) image -> data)[i] = 0x00;
+        }
+      }
+      else
+      {
+        for (i = 0; i < bytesToClean; i += 4)
+        {
+          ((unsigned char *) image -> data)[i] = 0x00;
+        }
+      }
+
+      break;
+    }
+    case 24:
+    case 15:
+    case 16:
+    case 8:
+    {
+      register int i, j;
+
+      bytesToClean = image -> bytes_per_line -
+                           ((image -> width * image -> bits_per_pixel) >> 3);
+
+      for (i = 1; i <= image -> height; i++)
+      {
+        for (j = bytesToClean; j > 0; j--)
+        {
+          ((unsigned char *) image -> data)[(i * image -> bytes_per_line) - j] = 0x00;
+        }
+      }
+
+      break;
+    }
+    default:
+    {
+      #ifdef PANIC
+      fprintf(stderr, "*****CleanZImage: PANIC! Cannot clean image with [%d] bits per pixel.\n",
+                  image -> bits_per_pixel);
+      #endif
+    }
+  }
+
+  /* 
+   * Clean the padding bytes at the real
+   * end of the buffer.
+   */
+
+  imageLength = image -> bytes_per_line * image -> height;
+
+  bytesToClean = imageLength % 4;
+
+  for (j = 0; j < bytesToClean; j++)
+  {
+    ((unsigned char *)image -> data)[(imageLength + j)] = 0x00;
+  }
+
+  return 1;
+}
+
+/*
+ * Copy a clean version of src_image into dst_image.
+ * This code is not taking care of the image format.
+ * The agent doesn't use it and you have to consider
+ * it unsupported.
+ */
+
+int CopyAndCleanImage(XImage *src_image, XImage *dst_image)
+{
+  register long data_size;
+  register int i;
+
+  data_size = (src_image -> bytes_per_line * src_image -> height) >> 2;
+
+  #ifdef WARNING
+  fprintf(stderr, "******CleanImage: WARNING! Function called with image of [%d] bits per pixel.\n",
+              src_image -> bits_per_pixel);
+  #endif
+
+  switch (src_image -> bits_per_pixel)
+  {
+    case 32:
+    {
+      unsigned int mask;
+
+      if (src_image -> byte_order == MSBFirst)
+      {
+        mask = 0xffffff00;
+      }
+      else
+      {
+        mask = 0x00ffffff;
+      }
+      for (i = 0; i < data_size; i++)
+      {
+        ((unsigned int *)dst_image -> data)[i] = ((unsigned int *)src_image -> data)[i] & mask;
+      }
+
+      break;
+    }
+
+    case 24:
+    {
+      unsigned int bytes_to_clean;
+
+      for (i = 0; i < data_size; i++)
+      {
+        ((unsigned int *)dst_image -> data)[i] = ((unsigned int *)src_image -> data)[i];
+      }
+
+      bytes_to_clean = dst_image -> bytes_per_line - ((dst_image -> width *
+                           dst_image -> bits_per_pixel) >> 3);
+
+      if (bytes_to_clean)
+      {
+        register unsigned int mask = 0xffffffff;
+        register int line_size;
+        register int i;
+                
+        line_size = dst_image -> bytes_per_line >> 2;
+
+        if (dst_image -> byte_order == MSBFirst)
+        {
+          mask = mask << (bytes_to_clean << 3);
+        }
+        else
+        {
+          mask = mask >> (bytes_to_clean << 3);
+        }
+
+        for (i = 0; i < dst_image -> height;)
+        {
+          ((unsigned char *)dst_image -> data)[(++i * line_size) -1] &= mask;
+        }
+      }
+
+      break;
+    }
+
+    case 15:
+    case 16:
+    {
+      for (i = 0; i < data_size; i++)
+      {
+        ((unsigned int *) dst_image -> data)[i] = ((unsigned int *) src_image -> data)[i];
+      }
+
+      if (src_image -> width & 0x00000001)
+      {
+        int card32_per_line = dst_image -> bytes_per_line >> 2;
+
+        for (i = 0; i < dst_image -> height;)
+        {
+          ((unsigned int *) dst_image -> data)[(++i * card32_per_line) -1] &= 0x0000ffff;
+        }
+      }
+
+      break;
+    }
+
+    case 8:
+    {
+      unsigned int mask = 0x00000000;
+
+      switch (dst_image -> width % 4)
+      {
+        case 3:
+        {
+          mask = 0x00ffffff;
+
+          break;
+        }
+        case 2:
+        {
+          mask = 0x0000ffff;
+
+          break;
+        }
+        case 1:
+        {
+          mask = 0x000000ff;
+
+          break;
+        }
+        default:
+        {
+          /*
+           * Nothing to clean.
+           */
+
+          break;
+        }
+      }
+
+      for (i = 0; i < data_size; i++)
+      {
+        ((unsigned int *) dst_image -> data)[i] = ((unsigned int *) src_image -> data)[i];
+      }
+
+      if (mask)
+      {
+        int card32_per_line;
+        int i;
+
+        card32_per_line = dst_image -> bytes_per_line >> 2;
+
+        for (i = 0; i < dst_image -> height; i++)
+        {
+          ((unsigned int *) dst_image -> data)[(++i * card32_per_line) -1] &= mask;
+        }
+      }
+
+      break;
+    }
+
+    default:
+    {
+      #ifdef PANIC
+      fprintf(stderr, "******CleanImage: PANIC! Cannot clean image of [%d] bits per pixel.\n",
+                  src_image -> bits_per_pixel);
+      #endif
+
+      return 0;
+    }
+  }
+
+  return 1;
+}

nxcompext/Clean.h

+/**************************************************************************/
+/*                                                                        */
+/* Copyright (c) 2001, 2007 NoMachine, http://www.nomachine.com/.         */
+/*                                                                        */
+/* NXCOMPEXT, NX protocol compression and NX extensions to this software  */
+/* are copyright of NoMachine. Redistribution and use of the present      */
+/* software is allowed according to terms specified in the file LICENSE   */
+/* which comes in the source distribution.                                */
+/*                                                                        */
+/* Check http://www.nomachine.com/licensing.html for applicability.       */
+/*                                                                        */
+/* NX and NoMachine are trademarks of NoMachine S.r.l.                    */
+/*                                                                        */
+/* All rigths reserved.                                                   */
+/*                                                                        */
+/**************************************************************************/
+
+#ifndef Clean_H
+#define Clean_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "Xlib.h"
+
+int CleanXYImage(XImage *image);
+int CleanZImage(XImage *image);
+
+int CopyAndCleanImage(XImage *src_image, XImage *dst_image);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* Clean_H */

nxcompext/Colormap.c

+/**************************************************************************/
+/*                                                                        */
+/* Copyright (c) 2001, 2007 NoMachine, http://www.nomachine.com/.         */
+/*                                                                        */
+/* NXCOMPEXT, NX protocol compression and NX extensions to this software  */
+/* are copyright of NoMachine. Redistribution and use of the present      */
+/* software is allowed according to terms specified in the file LICENSE   */
+/* which comes in the source distribution.                                */
+/*                                                                        */
+/* Check http://www.nomachine.com/licensing.html for applicability.       */
+/*                                                                        */
+/* NX and NoMachine are trademarks of NoMachine S.r.l.                    */
+/*                                                                        */
+/* All rigths reserved.                                                   */
+/*                                                                        */
+/**************************************************************************/
+
+#include <zlib.h>
+
+#include "NXlib.h"
+
+#include "Colormap.h"
+#include "Z.h"
+
+#define PANIC
+#define WARNING
+#undef  TEST
+#undef  DEBUG
+
+#define COLORMAP_COMPRESSION_LEVEL      4
+#define COLORMAP_COMPRESSION_THRESHOLD  32
+#define COLORMAP_COMPRESSION_STRATEGY   Z_DEFAULT_STRATEGY
+
+static int colormapCompressionLevel     = COLORMAP_COMPRESSION_LEVEL;
+static int colormapCompressionThreshold = COLORMAP_COMPRESSION_THRESHOLD;
+static int colormapCompressionStrategy  = COLORMAP_COMPRESSION_STRATEGY;
+
+char *ColormapCompressData(const char *data, unsigned int size, unsigned int *compressed_size)
+{
+  return ZCompressData(data, size, colormapCompressionThreshold, colormapCompressionLevel,
+                           colormapCompressionStrategy, compressed_size);
+}

nxcompext/Colormap.h

+/**************************************************************************/
+/*                                                                        */
+/* Copyright (c) 2001, 2007 NoMachine, http://www.nomachine.com/.         */
+/*                                                                        */
+/* NXCOMPEXT, NX protocol compression and NX extensions to this software  */
+/* are copyright of NoMachine. Redistribution and use of the present      */
+/* software is allowed according to terms specified in the file LICENSE   */
+/* which comes in the source distribution.                                */
+/*                                                                        */
+/* Check http://www.nomachine.com/licensing.html for applicability.       */
+/*                                                                        */
+/* NX and NoMachine are trademarks of NoMachine S.r.l.                    */
+/*                                                                        */
+/* All rigths reserved.                                                   */
+/*                                                                        */
+/**************************************************************************/
+
+#ifndef Colormap_H
+#define Colormap_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern char *ColormapCompressData(
+#if NeedFunctionPrototypes
+    const char*       /* data */,
+    unsigned int      /* size */,
+    unsigned int*     /* compressed_size */
+#endif
+);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* Colormap_H */

nxcompext/Jpeg.h

+/**************************************************************************/
+/*                                                                        */
+/* Copyright (c) 2001, 2007 NoMachine, http://www.nomachine.com/.         */
+/*                                                                        */
+/* NXCOMPEXT, NX protocol compression and NX extensions to this software  */
+/* are copyright of NoMachine. Redistribution and use of the present      */
+/* software is allowed according to terms specified in the file LICENSE   */
+/* which comes in the source distribution.                                */
+/*                                                                        */
+/* Check http://www.nomachine.com/licensing.html for applicability.       */
+/*                                                                        */
+/* NX and NoMachine are trademarks of NoMachine S.r.l.                    */
+/*                                                                        */
+/* All rigths reserved.                                                   */
+/*                                                                        */
+/**************************************************************************/
+
+#ifndef Jpeg_H
+#define Jpeg_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern char *JpegCompressData(
+#if NeedFunctionPrototypes
+    XImage*                   /* image */,
+    int                       /* level */,
+    int*                      /* compressed_size */
+#endif
+);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* Jpeg_H */
+

nxcompext/LICENSE

+Copyright (C) 2001, 2007 NoMachine - http://www.nomachine.com/.
+
+NXCOMPEXT library and NX extensions to X are copyright of NoMachine.
+Redistribution and use of this software is allowed according to the
+following terms:
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License Version 2, and
+not any other version, as published by the Free Software Foundation.
+
+This program is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTA-
+BILITY 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 program; if not, you can request a copy to NoMachine
+or write to the Free Software Foundation, Inc., 59 Temple Place,
+Suite 330, Boston, MA  02111-1307 USA
+
+All rights reserved.

nxcompext/Makefile.in

+############################################################################
+#                                                                          #
+#  Copyright (c) 2001, 2007 NoMachine, http://www.nomachine.com.           #
+#                                                                          #
+#  NXCOMPEXT, NX protocol compression and NX extensions to this software   #
+#  are copyright of NoMachine. Redistribution and use of the present       #
+#  software is allowed according to terms specified in the file LICENSE    #
+#  which comes in the source distribution.                                 #
+#                                                                          #
+#  Check http://www.nomachine.com/licensing.html for applicability.        #
+#                                                                          #
+#  NX and NoMachine are trademarks of NoMachine S.r.l.                     #
+#                                                                          #
+#  All rights reserved.                                                    #
+#                                                                          #
+############################################################################
+
+#
+# Get values from configure script.
+#
+
+VERSION=@VERSION@
+LIBVERSION=@LIBVERSION@
+
+#
+# We want to enable really all warnings. -Wredundant-decls,
+# though, gives a warning caused by pthread.h and unistd.h.
+#
+
+CXX         = @CXX@
+CXXFLAGS    = @CXXFLAGS@ @X_CFLAGS@ @DEFS@ \
+              -Wall -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes \
+              -Wmissing-declarations -Wnested-externs
+CXXINCLUDES = -I. -I../nxcomp
+CXXDEFINES  =
+
+CC          = @CC@
+CCFLAGS     = @CFLAGS@ @X_CFLAGS@ @DEFS@ \
+              -Wall -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes \
+              -Wmissing-declarations -Wnested-externs
+CCINCLUDES  = -I. -I../nxcomp
+CCDEFINES   =
+
+LDFLAGS     = @LDFLAGS@ -L../nxcomp
+LIBS        = @LIBS@ -lz -lX11 -lXcomp
+
+#
+# Only if THREADS is defined
+#
+# LIBS = @LIBS@ -lz -ljpeg -lpthread -lX11 -lXcomp
+#
+
+srcdir      = @srcdir@
+prefix      = @prefix@
+exec_prefix = @exec_prefix@
+bindir      = @bindir@
+man1dir     = @mandir@/man1
+VPATH       = @srcdir@
+
+INSTALL         = @INSTALL@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@
+INSTALL_DATA    = @INSTALL_DATA@
+
+#
+# This should be autodetected.
+#
+
+MAKEDEPEND     = @MAKEDEPEND@
+DEPENDINCLUDES =  -I/usr/include/c++ -I/usr/include/g++ -I/usr/include/g++-3 
+
+.SUFFIXES: .cpp.c
+
+.cpp.o:
+	$(CXX) -c $(CXXFLAGS) $(CXXINCLUDES) $<
+.c.o:
+	$(CC) -c $(CCFLAGS) $(CCINCLUDES) $<
+
+LIBRARY = Xcompext
+
+LIBNAME    = lib$(LIBRARY)
+LIBFULL    = lib$(LIBRARY).so.$(VERSION)
+LIBLOAD    = lib$(LIBRARY).so.$(LIBVERSION)
+LIBSHARED  = lib$(LIBRARY).so
+LIBARCHIVE = lib$(LIBRARY).a
+
+LIBCYGSHARED  = cyg$(LIBRARY).dll
+LIBCYGARCHIVE = lib$(LIBRARY).dll.a
+
+all: depend @ALL@
+
+MSRC=
+
+CSRC=	NXlib.c		\
+	Clean.c		\
+	Mask.c		\
+	Colormap.c	\
+	Alpha.c		\
+	Jpeg.c		\
+	Pgn.c		\
+	Bitmap.c	\
+	Rgb.c		\
+	Rle.c		\
+        Z.c
+
+CXXSRC=
+
+MOBJ   = $(MSRC:.c=.o)
+COBJ   = $(CSRC:.c=.o)
+CXXOBJ = $(CXXSRC:.cpp=.o)
+
+$(LIBFULL):	 $(CXXOBJ) $(COBJ)
+		 $(CXX) -o $@ $(LDFLAGS) $(CXXOBJ) $(COBJ) $(LIBS)
+
+$(LIBLOAD):	 $(LIBFULL)
+		 rm -f $(LIBLOAD)
+		 ln -s $(LIBFULL) $(LIBLOAD)
+
+$(LIBSHARED):	 $(LIBFULL)
+		 rm -f $(LIBSHARED)
+		 ln -s $(LIBFULL) $(LIBSHARED)
+
+$(LIBARCHIVE):	 $(CXXOBJ) $(COBJ)
+		 rm -f  $(LIBARCHIVE)
+		 ar clq $(LIBARCHIVE) $(CXXOBJ) $(COBJ)
+		 ranlib $(LIBARCHIVE)
+
+$(LIBCYGSHARED): $(LIBARCHIVE)
+		 $(CC) -shared -o $(LIBCYGSHARED) \
+		 -Wl,--out-implib=$(LIBCYGARCHIVE) \
+		 -Wl,--export-all-symbols \
+		 -Wl,--enable-auto-import \
+		 -Wl,--whole-archive $(LIBARCHIVE) \
+		 -Wl,--no-whole-archive $(LIBS) \
+		 $(LDFLAGS)
+
+$(LIBCYGARCHIVE): $(LIBCYGSHARED)
+
+depends:	depend.status
+
+depend:		depend.status
+
+depend.status:	
+		if [ -x $(MAKEDEPEND) ] ; then \
+			$(MAKEDEPEND) $(CXXINCLUDES) $(CCINCLUDES) \
+                        $(DEPENDINCLUDES) -f Makefile $(MSRC) $(CSRC) \
+			$(CXXSRC) 2>/dev/null; \
+		fi
+		touch depend.status
+
+install:	install.bin install.man
+
+install.bin:
+
+install.man:
+
+clean:
+		-rm -f *~ *.o *.bak *.orig *.rej st?????? core core.* *.out.* \
+		@ALL@
+
+distclean:	clean
+		-rm -rf autom4te.cache config.status config.log \
+		config.cache depend.status Makefile tags

nxcompext/Mask.h

+/**************************************************************************/
+/*                                                                        */
+/* Copyright (c) 2001, 2007 NoMachine, http://www.nomachine.com/.         */
+/*                                                                        */
+/* NXCOMPEXT, NX protocol compression and NX extensions to this software  */
+/* are copyright of NoMachine. Redistribution and use of the present      */
+/* software is allowed according to terms specified in the file LICENSE   */
+/* which comes in the source distribution.                                */
+/*                                                                        */
+/* Check http://www.nomachine.com/licensing.html for applicability.       */
+/*                                                                        */
+/* NX and NoMachine are trademarks of NoMachine S.r.l.                    */
+/*                                                                        */
+/* All rigths reserved.                                                   */
+/*                                                                        */
+/**************************************************************************/
+
+#ifndef Mask_H
+#define Mask_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "Xlib.h"
+
+extern int MaskImage(const ColorMask *mask, XImage *src_image, XImage *dst_image);
+
+extern int MaskInPlaceImage(const ColorMask *mask, XImage *image);
+
+extern int PackImage(unsigned int method, unsigned int src_data_size, XImage *src_image,
+                         unsigned int dst_data_size, XImage *dst_image);
+
+int FindLSB(int word);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* Mask_H */

nxcompext/NXlibint.h

+/**************************************************************************/
+/*                                                                        */
+/* Copyright (c) 2001, 2007 NoMachine, http://www.nomachine.com/.         */
+/*                                                                        */
+/* NXCOMPEXT, NX protocol compression and NX extensions to this software  */
+/* are copyright of NoMachine. Redistribution and use of the present      */
+/* software is allowed according to terms specified in the file LICENSE   */
+/* which comes in the source distribution.                                */
+/*                                                                        */
+/* Check http://www.nomachine.com/licensing.html for applicability.       */
+/*                                                                        */
+/* NX and NoMachine are trademarks of NoMachine S.r.l.                    */
+/*                                                                        */
+/* All rigths reserved.                                                   */
+/*                                                                        */
+/**************************************************************************/
+
+#ifndef NXlibint_H
+#define NXlibint_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "NXvars.h"
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* NXlibint_H */

nxcompext/Pgn.h

+/**************************************************************************/
+/*                                                                        */
+/* Copyright (c) 2001, 2007 NoMachine, http://www.nomachine.com/.         */
+/*                                                                        */
+/* NXCOMPEXT, NX protocol compression and NX extensions to this software  */
+/* are copyright of NoMachine. Redistribution and use of the present      */
+/* software is allowed according to terms specified in the file LICENSE   */
+/* which comes in the source distribution.                                */
+/*                                                                        */
+/* Check http://www.nomachine.com/licensing.html for applicability.       */
+/*                                                                        */
+/* NX and NoMachine are trademarks of NoMachine S.r.l.                    */
+/*                                                                        */
+/* All rigths reserved.                                                   */
+/*                                                                        */
+/**************************************************************************/
+
+#ifndef Pgn_H
+#define Pgn_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "X11/X.h"
+#include "X11/Xlib.h"
+#include "X11/Xmd.h"
+
+#include <png.h> 
+
+extern int PngCompareColorTable(
+#if NeedFunctionPrototypes
+  NXColorTable*     /* color_table_1 */,
+  NXColorTable*     /* color_table_2 */
+#endif
+);
+
+extern char *PngCompressData(
+#if NeedFunctionPrototypes
+    XImage*          /* image */,
+    int*             /* compressed_size */
+#endif
+);
+
+int NXCreatePalette16(
+#if NeedFunctionPrototypes
+    XImage*          /* src_image */,
+    NXColorTable*    /* color_table */,
+    CARD8*           /* image_index */,
+    int              /* nb_max */
+#endif
+);
+
+int NXCreatePalette32(
+#if NeedFunctionPrototypes
+    XImage*          /* src_image */,
+    NXColorTable*    /* color_table */,
+    CARD8*           /* image_index */,
+    int              /* nb_max */
+#endif
+);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* Pgn_H */
+

nxcompext/README

+README
+------
+
+1. To compile:
+
+   > tar zxvf nxcompext-X.Y.Z-N.tar.gz
+   > cd nxcompext
+   > ./configure
+   > make
+
+   You'll have to run gmake under Solaris.
+
+2. The 'make install' target is not currently supported
+   in the Makefile, but it should be simple to fix.
+

nxcompext/Rgb.c

+/**************************************************************************/
+/*                                                                        */
+/* Copyright (c) 2001, 2007 NoMachine, http://www.nomachine.com/.         */
+/*                                                                        */
+/* NXCOMPEXT, NX protocol compression and NX extensions to this software  */
+/* are copyright of NoMachine. Redistribution and use of the present      */
+/* software is allowed according to terms specified in the file LICENSE   */
+/* which comes in the source distribution.                                */
+/*                                                                        */
+/* Check http://www.nomachine.com/licensing.html for applicability.       */
+/*                                                                        */
+/* NX and NoMachine are trademarks of NoMachine S.r.l.                    */
+/*                                                                        */
+/* All rigths reserved.                                                   */
+/*                                                                        */
+/**************************************************************************/
+
+#include <zlib.h>
+
+#include "NXlib.h"
+
+#include "Rgb.h"
+#include "Z.h"
+
+#define PANIC
+#define WARNING
+#undef  TEST
+#undef  DEBUG
+
+#define RGB_COMPRESSION_LEVEL      4
+#define RGB_COMPRESSION_THRESHOLD  32
+#define RGB_COMPRESSION_STRATEGY   Z_DEFAULT_STRATEGY
+
+static int rgbCompressionLevel     = RGB_COMPRESSION_LEVEL;
+static int rgbCompressionThreshold = RGB_COMPRESSION_THRESHOLD;
+static int rgbCompressionStrategy  = RGB_COMPRESSION_STRATEGY;
+
+char *RgbCompressData(XImage *image, unsigned int *size)
+{
+  return ZCompressData(image -> data, image -> bytes_per_line * image -> height,
+                           rgbCompressionThreshold, rgbCompressionLevel,
+                               rgbCompressionStrategy, size);
+}

nxcompext/Rgb.h

+/**************************************************************************/
+/*                                                                        */
+/* Copyright (c) 2001, 2007 NoMachine, http://www.nomachine.com/.         */
+/*                                                                        */
+/* NXCOMPEXT, NX protocol compression and NX extensions to this software  */
+/* are copyright of NoMachine. Redistribution and use of the present      */
+/* software is allowed according to terms specified in the file LICENSE   */
+/* which comes in the source distribution.                                */
+/*                                                                        */
+/* Check http://www.nomachine.com/licensing.html for applicability.       */
+/*                                                                        */
+/* NX and NoMachine are trademarks of NoMachine S.r.l.                    */
+/*                                                                        */
+/* All rigths reserved.                                                   */
+/*                                                                        */
+/**************************************************************************/
+
+#ifndef Rgb_H
+#define Rgb_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern char *RgbCompressData(
+#if NeedFunctionPrototypes
+    XImage*                   /* image */,
+    unsigned int*             /* compressed_size */
+#endif
+);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* Rgb_H */

nxcompext/Rle.c

+/**************************************************************************/
+/*                                                                        */
+/* Copyright (c) 2001, 2007 NoMachine, http://www.nomachine.com/.         */
+/*                                                                        */
+/* NXCOMPEXT, NX protocol compression and NX extensions to this software  */
+/* are copyright of NoMachine. Redistribution and use of the present      */
+/* software is allowed according to terms specified in the file LICENSE   */
+/* which comes in the source distribution.                                */
+/*                                                                        */
+/* Check http://www.nomachine.com/licensing.html for applicability.       */
+/*                                                                        */
+/* NX and NoMachine are trademarks of NoMachine S.r.l.                    */
+/*                                                                        */
+/* All rigths reserved.                                                   */
+/*                                                                        */
+/**************************************************************************/
+
+#include <zlib.h>
+
+#include "NXlib.h"
+
+#include "Rle.h"
+#include "Z.h"
+
+#define PANIC
+#define WARNING
+#undef  TEST
+#undef  DEBUG
+
+#define RLE_COMPRESSION_LEVEL      1
+#define RLE_COMPRESSION_THRESHOLD  32
+#define RLE_COMPRESSION_STRATEGY   Z_RLE
+
+static int rleCompressionLevel     = RLE_COMPRESSION_LEVEL;
+static int rleCompressionThreshold = RLE_COMPRESSION_THRESHOLD;
+static int rleCompressionStrategy  = RLE_COMPRESSION_STRATEGY;
+
+char *RleCompressData(XImage *image, unsigned int *size)
+{
+  return ZCompressData(image -> data, image -> bytes_per_line * image -> height,
+                           rleCompressionThreshold, rleCompressionLevel,
+                               rleCompressionStrategy, size);
+}

nxcompext/Rle.h

+/**************************************************************************/
+/*                                                                        */
+/* Copyright (c) 2001, 2007 NoMachine, http://www.nomachine.com/.         */
+/*                                                                        */
+/* NXCOMPEXT, NX protocol compression and NX extensions to this software  */
+/* are copyright of NoMachine. Redistribution and use of the present      */
+/* software is allowed according to terms specified in the file LICENSE   */
+/* which comes in the source distribution.                                */
+/*                                                                        */
+/* Check http://www.nomachine.com/licensing.html for applicability.       */
+/*                                                                        */
+/* NX and NoMachine are trademarks of NoMachine S.r.l.                    */
+/*                                                                        */
+/* All rigths reserved.                                                   */
+/*                                                                        */
+/**************************************************************************/
+
+#ifndef Rle_H
+#define Rle_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern char *RleCompressData(
+#if NeedFunctionPrototypes
+    XImage*                   /* image */,
+    unsigned int*             /* compressed_size */
+#endif
+);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* Rle_H */

nxcompext/VERSION

+3.1.0

nxcompext/Z.c

+/**************************************************************************/
+/*                                                                        */
+/* Copyright (c) 2001, 2007 NoMachine, http://www.nomachine.com/.         */
+/*                                                                        */
+/* NXCOMPEXT, NX protocol compression and NX extensions to this software  */
+/* are copyright of NoMachine. Redistribution and use of the present      */
+/* software is allowed according to terms specified in the file LICENSE   */
+/* which comes in the source distribution.                                */
+/*                                                                        */
+/* Check http://www.nomachine.com/licensing.html for applicability.       */
+/*                                                                        */
+/* NX and NoMachine are trademarks of NoMachine S.r.l.                    */
+/*                                                                        */
+/* All rigths reserved.                                                   */
+/*                                                                        */
+/**************************************************************************/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <zlib.h>
+
+#include "NXlib.h"
+
+#include "Z.h"
+
+#define PANIC
+#define WARNING
+#undef  TEST
+#undef  DEBUG
+
+#define Z_COMPRESSION_LEVEL      4
+#define Z_COMPRESSION_THRESHOLD  32
+#define Z_COMPRESSION_STRATEGY   Z_DEFAULT_STRATEGY
+
+static int zCompressionLevel    = Z_COMPRESSION_LEVEL;
+static int zCompressionStrategy = Z_COMPRESSION_STRATEGY;
+
+static z_stream *zStream;
+
+static int zInitialized;
+
+static int ZConfigure(int level, int strategy);
+
+static int ZDeflate(char *dest, unsigned int *destLen,
+                        const char *source, unsigned int sourceLen);
+
+char *ZCompressData(const char *plainData, unsigned int plainSize, int threshold,
+                        int level, int strategy, unsigned int *compressedSize)
+{
+  char *compressedData;
+
+  /*
+   * Determine the size of the source image
+   * data and make sure there is enough
+   * space in the destination buffer.
+   */
+
+  *compressedSize = plainSize + (plainSize / 1000) + 12 + 1;
+
+  compressedData = Xmalloc(*compressedSize);
+
+  if (compressedData == NULL)
+  {
+    #ifdef PANIC
+    fprintf(stderr, "******ZCompressData: PANIC! Failed to allocate [%d] bytes for the destination.\n",
+                *compressedSize);
+    #endif
+
+    *compressedSize = 0;
+
+    return NULL;
+  }
+
+  if (level == Z_NO_COMPRESSION || plainSize < threshold)
+  {
+    #ifdef TEST
+    fprintf(stderr, "******ZCompressData: Not compressing [%d] bytes with level [%d] and "
+	    "threshold [%d].\n", plainSize, level, threshold);
+    #endif
+
+    /*
+     * Tell in the first byte of the buffer
+     * if the remaining data is compressed
+     * or not. This same byte can be used
+     * in future to store some other flag.
+     */
+
+    *compressedData = 0;
+
+    memcpy(compressedData + 1, plainData, plainSize);
+
+    *compressedSize = plainSize + 1;
+
+    return compressedData;
+  }
+  else
+  {
+    int result;
+
+    /*
+     * Reconfigure the stream if needed.
+     */
+
+    if (zCompressionLevel != level ||
+            zCompressionStrategy != strategy)
+    {
+      ZConfigure(level, strategy);
+
+      zCompressionLevel    = level;
+      zCompressionStrategy = strategy;
+    }
+
+    result = ZDeflate(compressedData + 1, compressedSize, plainData, plainSize);
+
+    if (result != Z_OK)
+    {
+      #ifdef PANIC
+      fprintf(stderr, "******ZCompressData: PANIC! Failed to compress [%d] bytes with error [%s].\n",
+                  plainSize, zError(result));
+      #endif
+
+      Xfree(compressedData);
+
+      *compressedSize = 0;
+
+      return NULL;
+    }
+
+    #ifdef TEST
+    fprintf(stderr, "******ZCompressData: Source data of [%d] bytes compressed to [%d].\n",
+                plainSize, *compressedSize);
+    #endif
+
+    *compressedData = 1;
+
+    *compressedSize = *compressedSize + 1;
+
+    return compressedData;
+  }
+}
+
+int ZConfigure(int level, int strategy)
+{
+  /*
+   * ZLIB wants the avail_out to be
+   * non zero, even if the stream was
+   * already flushed.
+   */
+
+  unsigned char dest[1];
+
+  zStream -> next_out  = dest;
+  zStream -> avail_out = 1;
+
+  if (deflateParams(zStream, level, strategy) != Z_OK)
+  {
+    #ifdef PANIC
+    fprintf(stderr, "******ZConfigure: PANIC! Failed to set level to [%d] and strategy to [%d].\n",
+                level, strategy);
+    #endif
+
+    return -1;
+  }
+  #ifdef TEST
+  else
+  {
+    fprintf(stderr, "******ZConfigure: Reconfigured the stream with level [%d] and strategy [%d].\n",
+                level, strategy);
+  }
+  #endif
+
+  return 1;
+}
+
+int ZDeflate(char *dest, unsigned int *destLen, const char *source, unsigned int sourceLen)
+{
+  int saveOut;
+  int result;
+
+  /*
+   * Deal with the possible overflow.
+   */
+
+  if (zStream -> total_out & 0x80000000)
+  {
+    #ifdef TEST
+    fprintf(stderr, "******ZDeflate: Reset Z stream counters with total in [%ld] total out [%ld].\n",
+                zStream -> total_in, zStream -> total_out);
+    #endif
+
+    zStream -> total_in  = 0;
+    zStream -> total_out = 0;
+  }
+
+  saveOut = zStream -> total_out;
+
+  zStream -> next_in  = (Bytef *) source;
+  zStream -> avail_in = (uInt) sourceLen;
+
+  #ifdef MAXSEG_64K
+
+  /*
+   * Check if the source is greater
+   * than 64K on a 16-bit machine.
+   */
+
+  if ((uLong) zStream -> avail_in != sourceLen) return Z_BUF_ERROR;
+
+  #endif
+
+  zStream -> next_out  = (unsigned char *) dest;
+  zStream -> avail_out = (uInt) *destLen;
+
+  if ((uLong) zStream -> avail_out != *destLen) return Z_BUF_ERROR;
+
+  result = deflate(zStream, Z_FINISH);
+
+  if (result != Z_STREAM_END)
+  {
+    deflateReset(zStream);
+
+    return (result == Z_OK ? Z_BUF_ERROR : result);
+  }
+
+  *destLen = zStream -> total_out - saveOut;
+
+  result = deflateReset(zStream);
+
+  return result;
+}
+
+int ZInitEncoder()
+{
+  if (zInitialized == 0)
+  {
+    int result;
+
+    zStream = Xmalloc(sizeof(z_stream));
+
+    if (zStream == NULL)
+    {
+      #ifdef PANIC
+      fprintf(stderr, "******ZInitEncoder: PANIC! Failed to allocate memory for the stream.\n");
+      #endif
+
+      return -1;
+    }
+
+    zStream -> zalloc = (alloc_func) 0;
+    zStream -> zfree  = (free_func) 0;
+    zStream -> opaque = (voidpf) 0;
+
+    #ifdef TEST
+    fprintf(stderr, "******ZInitEncoder: Initializing compressor with level [%d] and startegy [%d].\n",
+                zCompressionLevel, zCompressionStrategy);
+    #endif
+
+    result = deflateInit2(zStream, zCompressionLevel, Z_DEFLATED,
+                              15, 9, zCompressionStrategy);
+
+    if (result != Z_OK)
+    {
+      #ifdef PANIC
+      fprintf(stderr, "******ZInitEncoder: Failed to initialize the compressor with error [%s].\n",
+                  zError(result));
+      #endif
+
+      return -1;
+    }
+
+    zInitialized = 1;
+  }
+
+  return zInitialized;
+}
+
+int ZResetEncoder()
+{
+  int result;
+
+  if (zInitialized == 1)
+  {
+    result = deflateEnd(zStream);
+
+    if (result != Z_OK)
+    {
+      #ifdef WARNING
+      fprintf(stderr, "******ZResetEncoder: WARNING! Failed to deinitialize the compressor with error [%s].\n",
+                  zError(result));
+      #endif
+    }
+
+    Xfree(zStream);
+  }
+
+  zInitialized = 0;
+
+  return 1;
+}

nxcompext/Z.h

+/**************************************************************************/
+/*                                                                        */
+/* Copyright (c) 2001, 2007 NoMachine, http://www.nomachine.com/.         */
+/*                                                                        */
+/* NXCOMPEXT, NX protocol compression and NX extensions to this software  */
+/* are copyright of NoMachine. Redistribution and use of the present      */
+/* software is allowed according to terms specified in the file LICENSE   */
+/* which comes in the source distribution.                                */
+/*                                                                        */
+/* Check http://www.nomachine.com/licensing.html for applicability.       */
+/*                                                                        */
+/* NX and NoMachine are trademarks of NoMachine S.r.l.                    */
+/*                                                                        */
+/* All rigths reserved.                                                   */
+/*                                                                        */
+/**************************************************************************/
+
+#ifndef Z_H
+#define Z_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+int ZInitEncoder(
+#if NeedFunctionPrototypes
+void
+#endif
+);
+
+int ZResetEncoder(
+#if NeedFunctionPrototypes
+void
+#endif
+);
+
+extern char *ZCompressData(
+#if NeedFunctionPrototypes
+    const char*     /* data */,
+    unsigned int    /* size */,
+    int             /* threshold */,
+    int             /* level */,
+    int             /* strategy */,
+    unsigned int*   /* compressed_size */
+#endif
+);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* Z_H */

nxcompext/configure.in

+dnl Process this file with autoconf to produce a configure script.
+
+dnl Prolog
+
+AC_INIT(NXlib.h)
+AC_PREREQ(2.13)
+
+dnl Reset default compilation flags.
+
+CXXFLAGS="-O3"
+CFLAGS="-O3"
+
+dnl Reset default linking directives.
+
+LIBSTATIC=""
+LIBSHARED=""
+
+dnl Prefer headers and libraries from nx-X11, if present.
+
+if test -d "../nx-X11/include" ; then
+    CXXFLAGS="$CXXFLAGS -I../nx-X11/exports/include -I../nx-X11/lib/X11 \
+                        -I../nx-X11/include -I../nx-X11/programs/Xserver/include"
+    CFLAGS="$CFLAGS -I../nx-X11/exports/include -I../nx-X11/lib/X11 \
+                    -I../nx-X11/include -I../nx-X11/programs/Xserver/include"
+    LDFLAGS="$LDFLAGS -L../nx-X11/exports/lib"
+fi
+
+dnl Check for programs.
+
+AC_PROG_CXX
+AC_PROG_CC
+AC_LANG_CPLUSPLUS
+
+dnl Check for BSD compatible install.
+
+AC_PROG_INSTALL
+
+dnl Check for extra header files.
+
+AC_PATH_XTRA
+
+dnl Custom addition.
+ac_help="$ac_help
+  --with-symbols          add the -g flag to produce the debug symbols
+  --with-info             enable basic log output to trace the program
+  --with-valgrind         clean up allocated buffers to avoid valgrind warnings
+  --with-version          use this version for produced libraries
+
+  --with-static-png       enable static linking of PNG library
+  --with-static-jpeg      enable static linking of JPEG library"
+
+dnl Check to see if we're running under Cygwin32.
+
+AC_DEFUN(nxproxy_CYGWIN32,
+[AC_CACHE_CHECK(for Cygwin32 environment, nxproxy_cv_cygwin32,
+[AC_TRY_COMPILE(,[return __CYGWIN32__;],
+nxproxy_cv_cygwin32=yes, nxproxy_cv_cygwin32=no)
+rm -f conftest*])
+CYGWIN32=
+test "$nxproxy_cv_cygwin32" = yes && CYGWIN32=yes])
+
+dnl CygWin32 requires the stdc++ library explicitly linked.
+
+nxproxy_CYGWIN32
+if test "$CYGWIN32" = yes; then
+    LIBS="$LIBS -mwindows -lstdc++"
+fi
+
+dnl Check whether we're building on a AMD64.
+
+AC_DEFUN(nxconf_AMD64,
+[AC_CACHE_CHECK(for Amd64 environment, nxconf_cv_amd64,
+[AC_TRY_COMPILE(,[return (__amd64__ || __x86_64__);],
+nxconf_cv_amd64=yes, nxconf_cv_amd64=no)
+rm -f conftest*])
+AMD64=
+test "$nxconf_cv_amd64" = yes && AMD64=yes])
+nxconf_AMD64
+
+dnl Check to see if we're running under Solaris.
+
+AC_DEFUN(nxconf_SUN,
+[AC_CACHE_CHECK(for SunOS environment, nxconf_cv_sun,
+[AC_TRY_COMPILE(,[return __sun;],
+nxconf_cv_sun=yes, nxconf_cv_sun=no)
+rm -f conftest*])
+SUN=
+test "$nxconf_cv_sun" = yes && SUN=yes])
+nxconf_SUN
+
+if test "$SUN" = yes; then
+  CFLAGS="$CFLAGS -I/usr/sfw/include"
+fi
+
+if test "$SUN" = yes; then
+  LDFLAGS="$LDFLAGS -G -h \$(LIBLOAD) -L/usr/sfw/lib" 
+else
+  LDFLAGS="$LDFLAGS -shared -Wl,-soname,\$(LIBLOAD)"
+fi
+
+dnl Check to see if we're running under FreeBSD.
+
+AC_DEFUN(nxconf_FreeBSD,
+[AC_CACHE_CHECK(for FreeBSD environment, nxconf_cv_freebsd,
+[AC_TRY_COMPILE(,[return __FreeBSD__;],
+nxconf_cv_freebsd=yes, nxconf_cv_freebsd=no)
+rm -f conftest*])
+FreeBSD=
+test "$nxconf_cv_freebsd" = yes && FreeBSD=yes])
+nxconf_FreeBSD
+
+dnl Build PIC libraries.
+
+if test "$CYGWIN32" != yes -a "$DARWIN" != yes; then
+  CXXFLAGS="$CXXFLAGS -fPIC"
+  CFLAGS="$CFLAGS -fPIC"
+fi
+
+dnl On FreeBSD search libraries and includes under /usr/local.
+
+if test "$FreeBSD" = yes; then
+  LIBS="$LIBS  -L/usr/local/lib"
+  CXXFLAGS="$CXXFLAGS -I/usr/local/include"
+  CFLAGS="$CFLAGS -I/usr/local/include"
+fi
+
+dnl Check whether --with-static-png  was
+dnl given and add -lpng or libpng.a to linking.
+
+if test "${with_static_png}" = yes; then
+  echo -e "enabling static linking of PNG library"
+  if test "$CYGWIN32" = yes; then
+    LIBS="$LIBSTATIC -static -lpng"
+  else
+    if test -f "/usr/lib/libpng.a" ; then
+      LIBS="/usr/lib/libpng.a $LIBS"
+    else
+      if test -f "/usr/local/lib/libpng.a" ; then
+        echo -e "assuming libpng.a in /usr/local/lib"
+        LIBS="/usr/local/lib/libpng.a $LIBS"
+      else
+        echo -e "assuming libpng.a in default linker path"
+        LIBS="libpng.a $LIBS"
+      fi
+    fi
+  fi
+else
+  echo -e "enabling dynamic linking of PNG library"
+  LIBS="-lpng $LIBS"
+fi
+
+dnl Check whether --with-static-jpeg  was
+dnl given and add -ljpeg or libjpeg.a to linking.
+if test "${with_static_jpeg}" = yes; then
+  echo -e "enabling static linking of JPEG library"
+  if test "$CYGWIN32" = yes; then
+    LIBSTATIC="$LIBS -static -ljpeg"
+  else
+    if test -f "/usr/lib/libjpeg.a" ; then
+      LIBS="/usr/lib/libjpeg.a $LIBS"
+    else
+      if test -f "/usr/local/lib/libjpeg.a" ; then
+        echo -e "assuming libjpeg.a in /usr/local/lib"
+        LIBS="/usr/local/lib/libjpeg.a $LIBS"
+      else
+        echo -e "assuming libjpeg.a in default linker path"
+        LIBS="libjpeg.a $LIBS"
+      fi
+    fi
+  fi
+else
+  echo -e "enabling dynamic linking of JPEG library"
+  LIBS="-ljpeg $LIBS"
+fi
+
+dnl Check whether --with-symbols or --without-symbols was
+dnl given and set the required optimization level.
+if test "${with_symbols}" = yes; then
+  echo -e "enabling production of debug symbols"
+  CXXFLAGS="-g $CXXFLAGS"
+  CFLAGS="-g $CFLAGS"
+else
+  echo -e "disabling production of debug symbols"
+fi
+
+dnl Check whether --with-info or --without-info was given.
+if test "${with_info}" = yes; then
+  echo -e "enabling info output in the log file"
+  CXXFLAGS="$CXXFLAGS -DINFO"
+  CFLAGS="$CFLAGS -DINFO"
+else
+  echo -e "disabling info output in the log file"
+fi
+
+dnl Check whether --with-valgrind or --without-valgrind was given.
+if test "${with_valgrind}" = yes; then
+  echo -e "enabling valgrind memory checker workarounds"
+  CXXFLAGS="$CXXFLAGS -DVALGRIND"
+  CFLAGS="$CFLAGS -DVALGRIND"
+else
+  echo -e "disabling valgrind memory checker workarounds"
+fi
+
+dnl Check whether --with-version was given.
+AC_SUBST(LIBVERSION)
+AC_SUBST(VERSION)
+if test "${with_version}" = yes; then
+  VERSION=${ac_option}
+else
+  VERSION=`cat VERSION`
+fi
+echo -e "compiling version ${VERSION}"
+
+LIBVERSION=`echo ${VERSION} | cut -d '.' -f 1`
+
+CXXFLAGS="$CXXFLAGS -DVERSION=\\\"${VERSION}\\\""
+CFLAGS="$CFLAGS -DVERSION=\\\"${VERSION}\\\""
+
+dnl Find makedepend somewhere.
+
+AC_SUBST(MAKEDEPEND)
+
+if test -x "../nx-X11/config/makedepend/makedepend" ; then
+  MAKEDEPEND=../nx-X11/config/makedepend/makedepend
+else
+  if test -x "/usr/X11R6/bin/makedepend" ; then
+    MAKEDEPEND=/usr/X11R6/bin/makedepend
+  else
+    if test -x "/usr/openwin/bin/makedepend" ; then
+      MAKEDEPEND=/usr/openwin/bin/makedepend
+    else
+      MAKEDEPEND=/usr/bin/makedepend
+    fi
+  fi
+fi
+
+dnl Determine what to build based on the platform.
+dnl Override the LIBS settings on Cygwin32 so that
+dnl we always link with the exact set of libraries.
+
+AC_SUBST(ALL)
+
+if test "$CYGWIN32" = yes; then
+    ALL="\$(LIBCYGARCHIVE) \$(LIBCYGSHARED) \$(LIBARCHIVE)"
+else
+    ALL="\$(LIBFULL) \$(LIBLOAD) \$(LIBSHARED) \$(LIBARCHIVE)"
+fi
+
+AC_OUTPUT(Makefile)

nxcompext/install-sh

+#! /bin/sh
+#
+# install - install a program, script, or datafile
+# This comes from X11R5.
+#
+# Calling this script install-sh is preferred over install.sh, to prevent
+# `make' implicit rules from creating a file called install from it
+# when there is no Makefile.
+#
+# This script is compatible with the BSD install script, but was written
+# from scratch.
+#
+
+
+# set DOITPROG to echo to test this script
+
+# Don't use :- since 4.3BSD and earlier shells don't like it.
+doit="${DOITPROG-}"
+
+
+# put in absolute paths if you don't have them in your path; or use env. vars.
+
+mvprog="${MVPROG-mv}"
+cpprog="${CPPROG-cp}"
+chmodprog="${CHMODPROG-chmod}"
+chownprog="${CHOWNPROG-chown}"
+chgrpprog="${CHGRPPROG-chgrp}"
+stripprog="${STRIPPROG-strip}"
+rmprog="${RMPROG-rm}"
+mkdirprog="${MKDIRPROG-mkdir}"
+
+transformbasename=""
+transform_arg=""
+instcmd="$mvprog"
+chmodcmd="$chmodprog 0755"
+chowncmd=""
+chgrpcmd=""
+stripcmd=""
+rmcmd="$rmprog -f"
+mvcmd="$mvprog"
+src=""
+dst=""
+dir_arg=""
+
+while [ x"$1" != x ]; do
+    case $1 in
+	-c) instcmd="$cpprog"
+	    shift
+	    continue;;
+
+	-d) dir_arg=true
+	    shift
+	    continue;;
+
+	-m) chmodcmd="$chmodprog $2"
+	    shift
+	    shift
+	    continue;;
+
+	-o) chowncmd="$chownprog $2"
+	    shift
+	    shift
+	    continue;;
+
+	-g) chgrpcmd="$chgrpprog $2"
+	    shift
+	    shift
+	    continue;;
+
+	-s) stripcmd="$stripprog"
+	    shift
+	    continue;;
+
+	-t=*) transformarg=`echo $1 | sed 's/-t=//'`
+	    shift
+	    continue;;
+
+	-b=*) transformbasename=`echo $1 | sed 's/-b=//'`
+	    shift
+	    continue;;
+
+	*)  if [ x"$src" = x ]
+	    then
+		src=$1
+	    else
+		# this colon is to work around a 386BSD /bin/sh bug
+		:
+		dst=$1
+	    fi
+	    shift
+	    continue;;
+    esac
+done
+
+if [ x"$src" = x ]
+then
+	echo "install:	no input file specified"
+	exit 1
+else
+	true
+fi
+
+if [ x"$dir_arg" != x ]; then
+	dst=$src
+	src=""
+	
+	if [ -d $dst ]; then
+		instcmd=:
+	else
+		instcmd=mkdir
+	fi
+else
+
+# Waiting for this to be detected by the "$instcmd $src $dsttmp" command
+# might cause directories to be created, which would be especially bad 
+# if $src (and thus $dsttmp) contains '*'.
+
+	if [ -f $src -o -d $src ]
+	then
+		true
+	else
+		echo "install:  $src does not exist"
+		exit 1
+	fi
+	
+	if [ x"$dst" = x ]
+	then
+		echo "install:	no destination specified"
+		exit 1
+	else
+		true
+	fi
+
+# If destination is a directory, append the input filename; if your system
+# does not like double slashes in filenames, you may need to add some logic
+
+	if [ -d $dst ]
+	then
+		dst="$dst"/`basename $src`
+	else
+		true
+	fi
+fi
+
+## this sed command emulates the dirname command
+dstdir=`echo $dst | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'`
+
+# Make sure that the destination directory exists.
+#  this part is taken from Noah Friedman's mkinstalldirs script
+
+# Skip lots of stat calls in the usual case.
+if [ ! -d "$dstdir" ]; then
+defaultIFS='	
+'
+IFS="${IFS-${defaultIFS}}"
+
+oIFS="${IFS}"
+# Some sh's can't handle IFS=/ for some reason.
+IFS='%'
+set - `echo ${dstdir} | sed -e 's@/@%@g' -e 's@^%@/@'`
+IFS="${oIFS}"
+
+pathcomp=''
+
+while [ $# -ne 0 ] ; do
+	pathcomp="${pathcomp}${1}"
+	shift
+
+	if [ ! -d "${pathcomp}" ] ;
+        then
+		$mkdirprog "${pathcomp}"
+	else
+		true
+	fi
+
+	pathcomp="${pathcomp}/"
+done
+fi
+
+if [ x"$dir_arg" != x ]
+then
+	$doit $instcmd $dst &&
+
+	if [ x"$chowncmd" != x ]; then $doit $chowncmd $dst; else true ; fi &&
+	if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dst; else true ; fi &&
+	if [ x"$stripcmd" != x ]; then $doit $stripcmd $dst; else true ; fi &&
+	if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dst; else true ; fi
+else
+
+# If we're going to rename the final executable, determine the name now.
+
+	if [ x"$transformarg" = x ] 
+	then
+		dstfile=`basename $dst`
+	else
+		dstfile=`basename $dst $transformbasename | 
+			sed $transformarg`$transformbasename
+	fi
+
+# don't allow the sed command to completely eliminate the filename
+
+	if [ x"$dstfile" = x ] 
+	then
+		dstfile=`basename $dst`
+	else
+		true
+	fi
+
+# Make a temp file name in the proper directory.
+
+	dsttmp=$dstdir/#inst.$$#
+
+# Move or copy the file name to the temp name
+
+	$doit $instcmd $src $dsttmp &&
+
+	trap "rm -f ${dsttmp}" 0 &&
+
+# and set any options; do chmod last to preserve setuid bits
+
+# If any of these fail, we abort the whole thing.  If we want to
+# ignore errors from any of these, just make sure not to ignore
+# errors from the above "$doit $instcmd $src $dsttmp" command.
+
+	if [ x"$chowncmd" != x ]; then $doit $chowncmd $dsttmp; else true;fi &&
+	if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dsttmp; else true;fi &&
+	if [ x"$stripcmd" != x ]; then $doit $stripcmd $dsttmp; else true;fi &&
+	if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dsttmp; else true;fi &&
+
+# Now rename the file to the real destination.
+
+	$doit $rmcmd -f $dstdir/$dstfile &&
+	$doit $mvcmd $dsttmp $dstdir/$dstfile 
+
+fi &&
+
+
+exit 0

nxcompext/mkinstalldirs

+#! /bin/sh
+# mkinstalldirs --- make directory hierarchy
+# Author: Noah Friedman <friedman@prep.ai.mit.edu>
+# Created: 1993-05-16
+# Last modified: 1995-03-05
+# Public domain
+
+errstatus=0
+
+for file in ${1+"$@"} ; do
+   set fnord `echo ":$file" | sed -ne 's/^:\//#/;s/^://;s/\// /g;s/^#/\//;p'`
+   shift
+
+   pathcomp=
+   for d in ${1+"$@"} ; do
+     pathcomp="$pathcomp$d"
+     case "$pathcomp" in
+       -* ) pathcomp=./$pathcomp ;;
+     esac
+
+     if test ! -d "$pathcomp"; then
+        echo "mkdir $pathcomp" 1>&2
+        mkdir "$pathcomp" > /dev/null 2>&1 || lasterr=$?
+     fi
+
+     if test ! -d "$pathcomp"; then
+	errstatus=$lasterr
+     fi
+
+     pathcomp="$pathcomp/"
+   done
+done
+
+exit $errstatus