Add Windows cross-compilation support (MinGW) and emulation (Wine)

3 files changed, 72 insertions, 0 deletions

diff --git a/scripts/build_win.sh b/scripts/build_win.sh
new file mode 100755
index 0000000..493e322
--- /dev/null
+++ b/scripts/build_win.sh
@@ -0,0 +1,34 @@
+#!/bin/bash
+set -e
+
+# 1. Build native tools (asset_packer)
+echo "Building native tools..."
+cmake -S . -B build_native -DDEMO_BUILD_TOOLS=OFF -DDEMO_BUILD_TESTS=OFF
+cmake --build build_native --target asset_packer
+
+# 2. Cross-compile for Windows
+echo "Cross-compiling for Windows..."
+cmake -S . -B build_win \
+    -DCMAKE_TOOLCHAIN_FILE=cmake/Toolchain-MinGW-w64.cmake \
+    -DCMAKE_BUILD_TYPE=Release \
+    -DASSET_PACKER_PATH=$(pwd)/build_native/asset_packer \
+    -DDEMO_BUILD_TOOLS=OFF \
+    -DDEMO_BUILD_TESTS=OFF 
+
+cmake --build build_win
+
+# 3. Copy runtime DLLs to build_win so we can run it
+cp third_party/windows/lib/wgpu_native.dll build_win/
+
+# Copy MinGW DLLs (pthread, etc.)
+echo "Copying MinGW DLLs..."
+MINGW_BIN=$(dirname $(find /opt/homebrew -name "libwinpthread-1.dll" | grep x86_64 | head -n 1))
+if [ -d "$MINGW_BIN" ]; then
+    cp "$MINGW_BIN/libwinpthread-1.dll" build_win/
+    cp "$MINGW_BIN/libgcc_s_seh-1.dll" build_win/ 2>/dev/null || true
+    cp "$MINGW_BIN/libstdc++-6.dll" build_win/ 2>/dev/null || true
+else
+    echo "Warning: Could not find MinGW DLLs. You might need them to run the exe."
+fi
+
+echo "Build complete. Output: build_win/demo64k.exe"
diff --git a/scripts/fetch_win_deps.sh b/scripts/fetch_win_deps.sh
new file mode 100755
index 0000000..a32f047
--- /dev/null
+++ b/scripts/fetch_win_deps.sh
@@ -0,0 +1,29 @@
+#!/bin/bash
+set -e
+set -x
+
+# Create directories
+mkdir -p third_party/windows/lib
+mkdir -p third_party/windows/include/GLFW
+
+echo "Fetching GLFW 3.4..."
+curl -L -o glfw.zip https://github.com/glfw/glfw/releases/download/3.4/glfw-3.4.bin.WIN64.zip
+unzip -q glfw.zip
+cp glfw-3.4.bin.WIN64/lib-mingw-w64/libglfw3.a third_party/windows/lib/
+cp glfw-3.4.bin.WIN64/include/GLFW/* third_party/windows/include/GLFW/
+rm -rf glfw.zip glfw-3.4.bin.WIN64
+
+echo "Fetching wgpu-native v0.19.4.1..."
+curl -L -o wgpu.zip https://github.com/gfx-rs/wgpu-native/releases/download/v0.19.4.1/wgpu-windows-x86_64-release.zip
+unzip -q wgpu.zip -d wgpu_temp
+# Copy import library (renaming for MinGW convention, though it can usually read .lib)
+cp wgpu_temp/wgpu_native.dll.lib third_party/windows/lib/libwgpu_native.dll.a
+# Copy runtime DLL (will be needed next to executable)
+cp wgpu_temp/wgpu_native.dll third_party/windows/lib/wgpu_native.dll
+# Copy headers
+mkdir -p third_party/windows/include/webgpu
+cp wgpu_temp/webgpu.h third_party/windows/include/webgpu/
+cp wgpu_temp/wgpu.h third_party/windows/include/webgpu/
+rm -rf wgpu.zip wgpu_temp
+
+echo "Windows dependencies fetched."
diff --git a/scripts/run_win.sh b/scripts/run_win.sh
new file mode 100755
index 0000000..853a985
--- /dev/null
+++ b/scripts/run_win.sh
@@ -0,0 +1,9 @@
+#!/bin/bash
+if [ ! -f build_win/demo64k.exe ]; then
+    echo "Error: build_win/demo64k.exe not found. Run scripts/build_win.sh first."
+    exit 1
+fi
+
+echo "Running with Wine..."
+# Wine might output a lot of debug info, but for now we let it flow.
+wine build_win/demo64k.exe "$@"