For convenience majority of dependencies are bundled inside the repository and there is no need to download and build
them separately. All of them are placed under /vendor directory, not including atlasc,
which is placed under /tools/atlasc, and is a development tool - a texture packer.
| Name | Version | License |
|---|---|---|
| glad | OpenGL 1.3 / OpenGL ES 1.0 | MIT |
| glm | 0.9.9 | Happy Bunny / MIT |
| log.c | Unversioned | MIT |
| stbimage | 2.19 | MIT |
| atlasc | 3.1 | BSD 2-Clause |
| cjson | 1.7.12 | MIT |
| entt | 3.5.2 | MIT |
In some cases, custom changes were applied to either CMake files or other sources to make them compile and link under
PSP's standard C library which utilizes newlib as a libc implementation. In consequence of using non-GNU libc,
PSP's C++ standard library is stripped of some symbols, i.e std::to_string.
For this compatibility reason, I could not use most of C++ 14 libraries and fell back to using plain C libs, i.e using cjson instead of nlohmann/json.
The only external dependency so far is SDL.
SDL 1.2.15 / SDL_mixer 1.2 on PSP/Linux/Windows, SDL 2.0.14 on Android.
Why SDL 1.2.15 instead of SDL2.x.x? At the time I started working on the Spelunky PSP, the PSP toolchain shipped only this version, and I was happy to use it as it is still better than to directly access platform-specific libraries.
As using legacy SDL set a precedent, I decided to utilize it on every other platform, yet this is not obligatory and I am planning to move on to SDL2 at least on generic Linux/Windows platforms.
Android does not utilize any version of SDL_mixer as for technical reasons audio module is right now disabled for Android. I had difficulties cross-compiling SDL_mixer using included Android.mk file, and choose to postpone it as Android support isn't of high priority.