1# sandboxed LibPNG 2Copyright 2020 Google LLC. 3 4## Start use 5You should make sure the libtiff submodule is cloned. 6 7`git clone --recursive https://github.com/google/sandboxed-api` 8 9## Usage 10 11#### Build: 12``` 13mkdir -p build && cd build 14cmake .. -DSAPI_ROOT=/path/to/sapi_root 15make -j8 16``` 17 18#### Example: 19You should add `-DLIBPNG_SAPI_BUILD_EXAMPLES=ON` to use the example.\ 20run PNG to PNG: 21``` 22./examples/pngtopng /absolute/path/to/input/image.png /absolute/path/to/output/image.png 23``` 24run RGB to BGR: 25``` 26./examples/rgbtobgr /absolute/path/to/input/image.png /absolute/path/to/output/image.png 27``` 28 29Examples of input and output can be found in `images`. 30 31PNG to PNG: \ 32input: `images/pngtest.png`\ 33output:` images/pngtopng_pngtest.png` 34 35RGB to BGR: \ 36input: `images/red_ball.png`\ 37output: `images/rgbtobgr_red_ball.png` 38 39 40#### Tests: 41You should add `-DLIBPNG_SAPI_BUILD_TESTING=ON` to use tests and do: 42``` 43cd tests 44ctest . 45``` 46
