kc3-lang/SDL/docs/README-n3ds.md

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• Hash : e580e087
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  Date : 2022-12-06T17:53:01
  

  N3DS: Backport semaphore fixes from #6776.
  

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cmake -S. -Bbuild -DCMAKE_TOOLCHAIN_FILE="$DEVKITPRO/cmake/3DS.cmake" -DCMAKE_BUILD_TYPE=Release
cmake --build build
cmake --install build

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• docs/README-n3ds.md

• # Nintendo 3DS
  
  SDL port for the Nintendo 3DS [Homebrew toolchain](https://devkitpro.org/) contributed by:
  
  -   [Pierre Wendling](https://github.com/FtZPetruska)
  
  Credits to:
  
  -   The awesome people who ported SDL to other homebrew platforms.
  -   The Devkitpro team for making all the tools necessary to achieve this.
  
  ## Building
  
  To build for the Nintendo 3DS, make sure you have devkitARM and cmake installed and run:
  
  ```bash
  cmake -S. -Bbuild -DCMAKE_TOOLCHAIN_FILE="$DEVKITPRO/cmake/3DS.cmake" -DCMAKE_BUILD_TYPE=Release
  cmake --build build
  cmake --install build
  ```
  
  ## Notes
  
  -   Currently only software rendering is supported.
  -   SDL2main should be used to ensure ROMFS is enabled.
  -   By default, the extra L2 cache and higher clock speeds of the New 2/3DS lineup are enabled. If you wish to turn it off, use `osSetSpeedupEnable(false)` in your main function.
  -   `SDL_GetBasePath` returns the romfs root instead of the executable's directory.
  -   The Nintendo 3DS uses a cooperative threading model on a single core, meaning a thread will never yield unless done manually through the `SDL_Delay` functions, or blocking waits (`SDL_LockMutex`, `SDL_SemWait`, `SDL_CondWait`, `SDL_WaitThread`). To avoid starving other threads, `SDL_SemTryWait` and `SDL_SemWaitTimeout` will yield if they fail to acquire the semaphore, see https://github.com/libsdl-org/SDL/pull/6776 for more information.
  

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