Add dockerfile + generation wrapper script

Dockerfile

@@ -0,0 +1,11 @@
+FROM ubuntu:24.04
+
+RUN apt-get update && apt-get install -y \
+    dotnet-sdk-8.0 \
+    python3 \
+    git \
+    build-essential
+
+RUN ln -s /usr/bin/python3 /usr/bin/python
+
+SHELL ["/bin/bash", "-c"]

SDL3-CS/SDL3-CS.csproj

@@ -26,6 +26,14 @@
 
   <ItemGroup>
     <PackageReference Include="JetBrains.Annotations" Version="2023.3.0"/>
+
+    <PackageReference Include="libclang" Version="17.0.4">
+      <PrivateAssets>all</PrivateAssets>
+    </PackageReference>
+
+    <PackageReference Include="libClangSharp" Version="17.0.4">
+      <PrivateAssets>all</PrivateAssets>
+    </PackageReference>
   </ItemGroup>
 
   <ItemGroup>

SDL3-CS/SDL3/SDL_stdinc.rsp

@@ -6,6 +6,7 @@
 SDL_SLOW_MEMCPY
 SDL_SLOW_MEMMOVE
 SDL_SLOW_MEMSET
+SDL_DISABLE_ALLOCA
 
 # Prevent SDL from using compiler intrinsics __builtin_mul_overflow and __builtin_add_overflow.
 --additional

SDL3-CS/generate_bindings.py

@@ -260,12 +260,27 @@ base_command = [
     "char=byte",
     "wchar_t *=IntPtr",  # wchar_t has a platform-defined size
     "bool=SDLBool",  # treat bool as C# helper type
+    "__va_list=byte*",
 
     "--define-macro",
     "SDL_FUNCTION_POINTER_IS_VOID_POINTER",
+    "SDL_DECLSPEC=", # Not supported by llvm
 
+    # Undefine platform-specific macros - these will be defined on a per-case basis later.
     "--additional",
     "--undefine-macro=_WIN32",
+    "--undefine-macro=linux",
+    "--undefine-macro=__linux",
+    "--undefine-macro=__linux__",
+    "--undefine-macro=unix",
+    "--undefine-macro=__unix",
+    "--undefine-macro=__unix__",
+    "--undefine-macro=__APPLE__",
+    # GCC and LLVM use `long int` => int64, whereas MSVC uses `long long int` => int64.
+    # In terms of C# code gen, it's more accurate if we disable these to force LL, so
+    # that they're transformed to longs instead of ints.
+    "--undefine-macro=__LP64__",
+    "--undefine-macro=_LP64",
 ]
 
 

SDL3-CS/generate_bindings.sh

@@ -0,0 +1,14 @@
+#!/bin/bash
+
+set -eu
+pushd "$(dirname "$0")/../" >/dev/null
+
+dotnet tool restore
+dotnet restore --ucr SDL3-CS/SDL3-CS.csproj
+
+export LD_LIBRARY_PATH="$(echo ~/.nuget/packages/libclang.runtime.*/*/runtimes/*/native):$(echo ~/.nuget/packages/libclangsharp.runtime.*/*/runtimes/*/native):${LD_LIBRARY_PATH:-}"
+export CPLUS_INCLUDE_PATH="$(echo /usr/lib/gcc/*/*/include):/usr/include:${CPLUS_INCLUDE_PATH:-}"
+
+python3 SDL3-CS/generate_bindings.py
+
+popd >/dev/null