diff options
| author | Patric Stout <truebrain@openttd.org> | 2020-12-05 21:57:47 +0100 |
|---|---|---|
| committer | Patric Stout <github@truebrain.nl> | 2020-12-15 15:46:39 +0100 |
| commit | d15dc9f40f5a20bff452547a2dcb15231f9f969d (patch) | |
| tree | 7b8d88635c048d906cbb6358007fb26055e24410 /os/emscripten/cmake | |
| parent | 2da07f76154d841bcfe9aaff4833144550186deb (diff) | |
| download | openttd-d15dc9f40f5a20bff452547a2dcb15231f9f969d.tar.xz | |
Add: support for emscripten (play-OpenTTD-in-the-browser)
Emscripten compiles to WASM, which can be loaded via
HTML / JavaScript. This allows you to play OpenTTD inside a
browser.
Co-authored-by: milek7 <me@milek7.pl>
Diffstat (limited to 'os/emscripten/cmake')
| -rw-r--r-- | os/emscripten/cmake/FindLibLZMA.cmake | 20 | ||||
| -rw-r--r-- | os/emscripten/cmake/FindPNG.cmake | 7 | ||||
| -rw-r--r-- | os/emscripten/cmake/FindSDL2.cmake | 7 | ||||
| -rw-r--r-- | os/emscripten/cmake/FindZLIB.cmake | 7 |
4 files changed, 41 insertions, 0 deletions
diff --git a/os/emscripten/cmake/FindLibLZMA.cmake b/os/emscripten/cmake/FindLibLZMA.cmake new file mode 100644 index 000000000..99d1ca640 --- /dev/null +++ b/os/emscripten/cmake/FindLibLZMA.cmake @@ -0,0 +1,20 @@ +# LibLZMA is a recent addition to the emscripten SDK, so it is possible +# someone hasn't updated his SDK yet. Test out if the SDK supports LibLZMA. +include(CheckCXXSourceCompiles) +set(CMAKE_REQUIRED_FLAGS "-sUSE_LIBLZMA=1") + +check_cxx_source_compiles(" + #include <lzma.h> + int main() { return 0; }" + LIBLZMA_FOUND +) + +if (LIBLZMA_FOUND) + add_library(LibLZMA::LibLZMA INTERFACE IMPORTED) + set_target_properties(LibLZMA::LibLZMA PROPERTIES + INTERFACE_COMPILE_OPTIONS "-sUSE_LIBLZMA=1" + INTERFACE_LINK_LIBRARIES "-sUSE_LIBLZMA=1" + ) +else() + message(WARNING "You are using an emscripten SDK without LibLZMA support. Many savegames won't be able to load in OpenTTD. Please apply 'emsdk-liblzma.patch' to your local emsdk installation.") +endif() diff --git a/os/emscripten/cmake/FindPNG.cmake b/os/emscripten/cmake/FindPNG.cmake new file mode 100644 index 000000000..2616af33d --- /dev/null +++ b/os/emscripten/cmake/FindPNG.cmake @@ -0,0 +1,7 @@ +add_library(PNG::PNG INTERFACE IMPORTED) +set_target_properties(PNG::PNG PROPERTIES + INTERFACE_COMPILE_OPTIONS "-sUSE_LIBPNG=1" + INTERFACE_LINK_LIBRARIES "-sUSE_LIBPNG=1" +) + +set(PNG_FOUND on) diff --git a/os/emscripten/cmake/FindSDL2.cmake b/os/emscripten/cmake/FindSDL2.cmake new file mode 100644 index 000000000..54553958b --- /dev/null +++ b/os/emscripten/cmake/FindSDL2.cmake @@ -0,0 +1,7 @@ +add_library(SDL2::SDL2 INTERFACE IMPORTED) +set_target_properties(SDL2::SDL2 PROPERTIES + INTERFACE_COMPILE_OPTIONS "-sUSE_SDL=2" + INTERFACE_LINK_LIBRARIES "-sUSE_SDL=2" +) + +set(SDL2_FOUND on) diff --git a/os/emscripten/cmake/FindZLIB.cmake b/os/emscripten/cmake/FindZLIB.cmake new file mode 100644 index 000000000..2ade2ba1b --- /dev/null +++ b/os/emscripten/cmake/FindZLIB.cmake @@ -0,0 +1,7 @@ +add_library(ZLIB::ZLIB INTERFACE IMPORTED) +set_target_properties(ZLIB::ZLIB PROPERTIES + INTERFACE_COMPILE_OPTIONS "-sUSE_ZLIB=1" + INTERFACE_LINK_LIBRARIES "-sUSE_ZLIB=1" +) + +set(ZLIB_FOUND on) |