Merge subtree commit 'c1f74efcecfd4155775ff4aa17e48208b13df96e'

Keeping libcimbar master up to date. The most interesting included PR is
probably #73.

.github/workflows/ci.yml

@@ -10,20 +10,20 @@ jobs:
  fail-fast: false
  matrix:
  config:
- - name: "linux gcc7"
- os: ubuntu-18.04
- env: CXX="g++-7" CC="gcc-7"
-
  - name: "linux gcc9"
+ os: ubuntu-20.04
+ env: CXX="g++-9" CC="gcc-9"
+
+ - name: "linux gcc-latest"
  os: ubuntu-latest
 
  - name: "linux clang"
- os: ubuntu-18.04
+ os: ubuntu-20.04
  env: CXX="clang++" CC="clang"
  extra-packages: "clang"
 
  steps:
- - uses: actions/checkout@v2
+ - uses: actions/checkout@v3
  with:
  submodules: 'recursive'
 
@@ -45,11 +45,15 @@ jobs:
  working-directory: ${{runner.workspace}}/build
  run: make test CTEST_OUTPUT_ON_FAILURE=TRUE
 
+ - name: Usage test
+ working-directory: ${{runner.workspace}}/libcimbar/test/py
+ run: python3 -m unittest
+
  cppcheck:
- runs-on: ubuntu-18.04
+ runs-on: ubuntu-20.04
 
  steps:
- - uses: actions/checkout@v2
+ - uses: actions/checkout@v3
 
  - name: Install dependencies
  run: sudo apt-get install cppcheck

.github/workflows/release.yml

@@ -10,7 +10,7 @@ jobs:
  runs-on: ubuntu-latest
  steps:
  - name: Get the code
- uses: actions/checkout@v2
+ uses: actions/checkout@v3
  with:
  submodules: 'recursive'
 
@@ -23,7 +23,7 @@ jobs:
  - name: Run the build process with Docker
  uses: addnab/docker-run-action@v3
  with:
- image: emscripten/emsdk:latest
+ image: emscripten/emsdk:3.1.39
  options: -v ${{ github.workspace }}:/usr/src/app
  shell: bash
  run: |
@@ -39,4 +39,5 @@ jobs:
  files: |
  web/cimbar.asmjs.zip
  web/cimbar.wasm.tar.gz
+ web/cimbar_js.html
 

DETAILS.md

@@ -34,7 +34,7 @@ The above is a 4x4(x4) cimbar grid -- encoding 64 bits of data. A real cimbar im
 
 ![an example cimbar code](https://github.com/sz3/cimbar-samples/blob/v0.5/6bit/4color_ecc30_fountain_0.png)
 
-... and contains 1550 tiles for data. For 6-bit cimbar (4 symbol bits, 2 color bits), this means 9300 bytes per image.
+... and contains 12400 tiles for data. For 6-bit cimbar (4 symbol bits, 2 color bits), this means 9300 bytes per image.
 
 ### Error Correction
 

README.md

@@ -77,12 +77,17 @@ Encode:
 * large input files may fill up your disk with pngs!
 
 ```
-./cimbar --encode -i inputfile.txt -o outputprefix -f
+./cimbar --encode -i inputfile.txt -o outputprefix
 ```
 
 Decode (extracts file into output directory):
 ```
-./cimbar outputprefix*.png -o /tmp -f
+./cimbar outputprefix*.png -o /tmp
+```
+
+Decode a series of encoded images from stdin:
+```
+echo outputprefix*.png | ./cimbar -o /tmp
 ```
 
 Encode and animate to window:

package-cimbar-html.py

@@ -0,0 +1,36 @@
+
+def get_path(name):
+ fns = {
+ 'index': 'web/index.html',
+ 'cimbar_js': 'web/cimbar_js.js',
+ 'main_js': 'web/main.js',
+ 'output': 'web/cimbar_js.html',
+ }
+ return fns[name]
+
+
+def read_file(name):
+ with open(get_path(name), 'rt') as f:
+ return f.read()
+
+
+def read_script(name):
+ script = read_file(name)
+ return '<script type="text/javascript">\n' + script + '\n'
+
+
+def main():
+ contents = read_file('index')
+ main_js = read_script('main_js')
+ cimbar_js = read_script('cimbar_js')
+
+ contents = contents.replace('<script src="main.js">', main_js)
+ contents = contents.replace('<script src="cimbar_js.js">', cimbar_js)
+
+ with open(get_path('output'), 'wt') as f:
+ f.write(contents)
+
+
+
+if __name__ == '__main__':
+ main()

package-portable-linux.sh

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 ## targeting old glibc
 # docker run --mount type=bind,source="$(pwd)",target="/usr/src/app" -it ubuntu:16.04
 

package-wasm.sh

@@ -1,14 +1,14 @@
-#!/bin/sh
-#docker run --mount type=bind,source="$(pwd)",target="/usr/src/app" -it emscripten/emsdk:latest
+#!/bin/bash
+#docker run --mount type=bind,source="$(pwd)",target="/usr/src/app" -it emscripten/emsdk:3.1.39
 
 cd /usr/src/app
 
 apt update
-apt install python -y
+apt install python3 -y
 
 cd opencv4/
 mkdir opencv-build-wasm && cd opencv-build-wasm
-python ../platforms/js/build_js.py build_wasm --build_wasm --emscripten_dir=/emsdk/upstream/emscripten
+python3 ../platforms/js/build_js.py build_wasm --build_wasm --emscripten_dir=/emsdk/upstream/emscripten
 
 cd /usr/src/app
 mkdir build-wasm && cd build-wasm
@@ -21,3 +21,6 @@ mkdir build-asmjs && cd build-asmjs
 emcmake cmake .. -DUSE_WASM=2 -DOPENCV_DIR=/usr/src/app/opencv4
 make -j5 install
 (cd ../web/ && zip cimbar.asmjs.zip cimbar_js.js index.html main.js)
+
+(cd ../ && python3 package-cimbar-html.py)
+

src/exe/build_image_assets/build_image_assets.cpp

@@ -29,6 +29,12 @@ map<string, string> getFileBlobs(string dir_path)
  blobs[file_path] = base91::encode(contents);
  }
 
+ for (int i = 0; i < 4; ++i)
+ {
+ string file_path = fmt::format("{}/2/{:02x}.png", dir_path, i);
+ string contents = File(file_path).read_all();
+ blobs[file_path] = base91::encode(contents);
+ }
  for (int i = 0; i < 16; ++i)
  {
  string file_path = fmt::format("{}/4/{:02x}.png", dir_path, i);
@@ -43,8 +49,8 @@ int main(int argc, char** argv)
  cxxopts::Options options("build_image_assets", "Build a C++ class file (header-only) that contains base91 png asset data.");
 
  options.add_options()
-  ("b,bitmap", "Bitmap directory", cxxopts::value<std::string>())
-  ("h,help", "Print usage")
+  ("b,bitmap", "Bitmap directory", cxxopts::value<std::string>())
+  ("h,help", "Print usage")
  ;
 
  auto result = options.parse(argc, argv);

src/exe/cimbar/CMakeLists.txt

@@ -20,6 +20,7 @@ target_link_libraries(cimbar
  wirehair
  zstd
  ${OPENCV_LIBS}
+ ${CPPFILESYSTEM}
 )
 
 add_custom_command(