add Dockerfile for cross-platform packaging using Wine.

ReadMe.md

@@ -3,6 +3,9 @@
 
 ## Usage:
 
+<details>
+<summary>from source (.py)</summary>
+
 ```sh
 usage: sigmadouble.py [-h] [-v] [-f filename] [-i mapped_ipv4]
                       [-p mapped_port_base]
@@ -25,6 +28,32 @@ optional arguments:
   -l mapping_loaded_filename, --load mapping_loaded_filename
                         mapping loaded filename, to UCC log; YAML formatted
 ```
+</details>
+
+<details>
+<summary>from binary (.exe)</summary>
+
+```sh
+usage: sigmadouble.exe [-h] [-v] [-f filename] [-i mapped_ipv4] [-p mapped_port_base]
+                       [-s mapping_stored_filename | -l mapping_loaded_filename]
+
+CLI argument parsing
+
+optional arguments:
+  -h, --help            show this help message and exit
+  -v, --verbose         verbosity
+  -f filename, --filename filename
+                        filename of UCC log
+  -i mapped_ipv4, --ip mapped_ipv4
+                        mapped IPv4 address; only for mapping stored filename
+  -p mapped_port_base, --port mapped_port_base
+                        mapped TCP listening port base; only for mapping stored filename
+  -s mapping_stored_filename, --store mapping_stored_filename
+                        mapping stored filename, from UCC log; YAML formatted
+  -l mapping_loaded_filename, --load mapping_loaded_filename
+                        mapping loaded filename, to UCC log; YAML formatted
+```
+</details>
 
 ## Description:
 A test double to **emulate** Sigma handshaking based on existing log.
@@ -44,3 +73,62 @@ The UCC core must alter:
 > > Notice here, when DUT is one of testbeds, the handle (IP-port pair) of the testbed is recommended to be commented/removed.
 
 Thus, when UCC core sends request to test double, then, test double will send corresponding response back; **just like replaying the tapes of music**.
+
+## Build:
+
+<details>
+<summary>Cross-platform packaging using <b>Wine</b></summary>
+
+Building _Windows 11_ binary executable steps under _Ubuntu 20.04_ are following.
+
+* To build the docker image using existing Dockerfile; **Wine** installation is included in the Dockerfile
+```sh
+docker build -f ubuntu-20-04-wine.dockerfile -t wine-20-04 . --build-arg UID=$UID --build-arg USER=$USER --build-arg PASSWORD="demonslayer"
+```
+* To disable the access control of X-server
+```sh
+xhost +
+```
+
+* To launch the docker container; current working directory is mounted to _/mnt_
+```sh
+docker run -it --name wine-20-04-inst --device /dev/snd --device=/dev/dri -e DISPLAY=$DISPLAY -e XMODIFIERS=@im=fcitx -e QT_IM_MODULE=fcitx -e GTK_IM_MODULE=fcitx -v /tmp/.X11-unix:/tmp/.X11-unix:ro -v $(pwd):/mnt --net=host wine-20-04 bash
+```
+
+* To download a suitable python installer such as v3.8 under the container
+```sh
+wget https://www.python.org/ftp/python/3.8.10/python-3.8.10-amd64.exe -O /mnt/python-3.8.10-amd64.exe
+```
+
+* To install the python installer under the container
+```sh
+WINEPREFIX=~/.wine64 wine /mnt/python-3.8.10-amd64.exe
+```
+
+* To install dependency for this _test double_ under the container
+```sh
+WINEPREFIX=~/.wine64 wine ~/.wine64/drive_c/users/`id -u -n`/AppData/Local/Programs/Python/Python38/python.exe -m pip install pyyaml
+```
+
+* To install dependency for packaging under the container
+```sh
+WINEPREFIX=~/.wine64 wine ~/.wine64/drive_c/users/`id -u -n`/AppData/Local/Programs/Python/Python38/python.exe -m pip install pyinstaller
+```
+
+* To package the binary executable under the container; the binary executable is stored in the distributable directory (i.e. _/mnt_)
+```sh
+WINEPREFIX=~/.wine64 wine ~/.wine64/drive_c/users/`id -u -n`/AppData/Local/Programs/Python/Python38/Scripts/pyinstaller.exe --clean --console --onefile /mnt/sigmadouble.py --distpath /mnt
+```
+
+* To exit the container
+```sh
+exit
+```
+
+* To enable the access control of X-server
+```sh
+xhost -
+```
+
+</details>
+

ubuntu-20-04-wine.dockerfile

@@ -0,0 +1,86 @@
+FROM --platform=amd64 ubuntu:20.04
+
+ARG UID=9527
+ARG USER=WFA
+ARG PASSWORD="docker"
+ENV DEBIAN_FRONTEND noninteractive
+
+RUN apt-get update -y && \
+    apt-get install -y --no-install-recommends \
+        software-properties-common \
+        ca-certificates \
+        language-pack-en \
+        language-pack-zh-hant* \
+        locales \
+        locales-all \
+        wget
+
+# Install Wine
+RUN dpkg --add-architecture i386 && \
+    mkdir -pm755 /etc/apt/keyrings && \
+    wget -O /etc/apt/keyrings/winehq-archive.key https://dl.winehq.org/wine-builds/winehq.key && \
+    wget -nc -P /etc/apt/sources.list.d/ https://dl.winehq.org/wine-builds/ubuntu/dists/$(lsb_release -sc)/winehq-$(lsb_release -sc).sources && \
+    apt-get update -y && \
+    # Wine 7.0 stable has some issues with some games I tested
+    # Use Wine 7.11 staging instead
+    apt-get install -y --install-recommends winehq-staging
+
+# GStreamer plugins
+RUN apt-get update -y && \
+    apt-get install -y --install-recommends \
+        gstreamer1.0-libav:i386
+RUN apt-get update -y && \
+    apt-get install -y --install-recommends \
+        gstreamer1.0-plugins-bad:i386
+RUN apt-get update -y && \
+    apt-get install -y --install-recommends \
+        gstreamer1.0-plugins-base:i386
+RUN apt-get update -y && \
+    apt-get install -y --install-recommends \
+        gstreamer1.0-plugins-good:i386
+RUN apt-get update -y && \
+    apt-get install -y --install-recommends \
+        gstreamer1.0-plugins-ugly:i386
+RUN apt-get update -y && \
+    apt-get install -y --install-recommends \
+        gstreamer1.0-pulseaudio:i386
+
+# Install dependencies for display scaling
+RUN apt-get update -y && \
+    apt-get install -y --install-recommends \
+        build-essential \
+        bc \
+        git \
+        xpra \
+        xvfb \
+        python3 \
+        python3-pip
+
+# Install OpenGL acceleration for display scaling
+RUN pip3 install PyOpenGL==3.1.5 PyOpenGL_accelerate==3.1.5
+
+# Install display scaling script
+RUN cd /tmp && \
+    git clone https://github.com/kaueraal/run_scaled.git && \
+    cp /tmp/run_scaled/run_scaled /usr/local/bin/
+
+# Install missing fonts for Chinese
+RUN apt-get update -y && \
+    apt-get install -y --install-recommends \
+        fonts-wqy-microhei
+
+# Install driver for Intel HD graphics
+RUN apt-get -y install libgl1-mesa-glx libgl1-mesa-dri
+
+ENV LC_ALL zh_TW.UTF-8
+ENV LANG zh_TW.UTF-8
+# Make sure the terminal is still English
+ENV LANGUAGE en_US.UTF-8
+
+RUN apt-get install -qqy sudo
+RUN useradd -r -m -d /home/$USER -s /bin/bash -g root -g sudo -u $UID $USER
+RUN echo "$USER:$PASSWORD" | chpasswd
+RUN echo "root:$PASSWORD" | chpasswd
+USER $USER
+WORKDIR /home/$USER
+