CI: Add gallium-va and video-codecs in windows-vs2019 and debian-mingw32-x86_64

Reviewed-by: Jesse Natalie <jenatali@microsoft.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19063>

.gitlab-ci/windows/mesa_deps_build.ps1

@@ -32,6 +32,35 @@ Pop-Location
 
 $depsInstallPath="C:\mesa-deps"
 
+Get-Date
+Write-Host "Cloning libva"
+git clone https://github.com/intel/libva.git deps/libva
+if (!$?) {
+  Write-Host "Failed to clone libva repository"
+  Exit 1
+}
+
+Push-Location -Path ".\deps\libva"
+Write-Host "Checking out libva commit 2579eb0f77897dc01a02c1e43defc63c40fd2988"
+# Checking out commit hash with libva-win32 support
+# This feature will be released with libva version 2.17
+git checkout 2579eb0f77897dc01a02c1e43defc63c40fd2988
+Pop-Location
+
+Write-Host "Building libva"
+# libva already has a build dir in their repo, use builddir instead
+$libva_build = New-Item -ItemType Directory -Path ".\deps\libva" -Name "builddir"
+Push-Location -Path $libva_build.FullName
+meson .. -Dprefix="$depsInstallPath"
+ninja -j32 install
+$buildstatus = $?
+Pop-Location
+Remove-Item -Recurse -Force -ErrorAction SilentlyContinue -Path $libva_build
+if (!$buildstatus) {
+  Write-Host "Failed to compile libva"
+  Exit 1
+}
+
 Get-Date
 # slightly convoluted syntax but avoids the CWD being under the PS filesystem meta-path
 $llvm_build = New-Item -ItemType Directory -ErrorAction SilentlyContinue -Force -Path ".\deps\llvm-project" -Name "build"