Install warp and mesa on windows-2022 in test workflow

.github/workflows/test.yml

@@ -121,6 +121,34 @@ jobs:
         if: matrix.os == 'windows-2022'
         uses: napokue/[email protected]
 
+      - name: (windows) install warp
+        if: matrix.os == 'windows-2022'
+        shell: bash
+        run: |
+          set -e
+
+          curl.exe -L https://www.nuget.org/api/v2/package/Microsoft.Direct3D.WARP/1.0.7.1 -o warp.zip
+          7z.exe e warp.zip -owarp build/native/amd64/d3d10warp.dll
+
+          mkdir -p target/llvm-cov-target/debug/deps
+
+          cp -v warp/d3d10warp.dll target/llvm-cov-target/debug/
+          cp -v warp/d3d10warp.dll target/llvm-cov-target/debug/deps
+
+      - name: (windows) install mesa
+        if: matrix.os == 'windows-2022'
+        shell: bash
+        run: |
+          set -e
+
+          curl.exe -L https://github.com/pal1000/mesa-dist-win/releases/download/23.2.1/mesa3d-23.2.1-release-msvc.7z -o mesa.7z
+          7z.exe e mesa.7z -omesa x64/{opengl32.dll,libgallium_wgl.dll,libglapi.dll,vulkan_lvp.dll,lvp_icd.x86_64.json}
+
+          cp -v mesa/* target/llvm-cov-target/debug/
+          cp -v mesa/* target/llvm-cov-target/debug/deps
+
+          echo "VK_DRIVER_FILES=$PWD/mesa/lvp_icd.x86_64.json" >> "$GITHUB_ENV"
+          echo "GALLIUM_DRIVER=llvmpipe" >> "$GITHUB_ENV"
       # - name: run checks & tests
       #   env:
       #     CI_RUN: 1