CI: simplified Win

.github/scripts/Windows/find_msvc.ps1

@@ -0,0 +1,22 @@
+Set-PSDebug -Trace 1
+
+# Find VS
+$vswhere = "${Env:ProgramFiles(x86)}\Microsoft Visual Studio\Installer\vswhere.exe"
+$installDir = & $vswhere -latest -products * -requires Microsoft.VisualStudio.Component.VC.Tools.x86.x64 -property installationPath
+if (-Not $installDir) {
+  throw "Vswhere failed"
+}
+$path = join-path $installDir 'VC\Auxiliary\Build\Microsoft.VCToolsVersion.default.txt'
+$pathPresent = test-path $path
+if (-Not $pathPresent) {
+  throw "MSVS not found"
+}
+$version = gc -raw $path
+if (-Not $version) {
+  throw "Cannot get MSVS version"
+}
+$version = $version.Trim()
+echo "::add-path::$installDir\VC\Tools\MSVC\$version\bin\HostX64\x64" # cl
+echo "::add-path::$installDir\Common7\IDE\CommonExtensions\Microsoft\CMake\CMake\bin"
+echo "::add-path::$installDir\MSBuild\Current\Bin"
+

.github/scripts/Windows/prepare.ps1

@@ -0,0 +1,33 @@
+Set-PSDebug -Trace 1
+
+# Install MSYS2
+choco install --no-progress msys2 --params "/NoUpdate /InstallDir:C:\msys64"
+echo "::set-env name=MSYS2_PATH_TYPE::inherit" # MSYS2 inherits PATH from Windows
+
+# Install CUDA
+Invoke-WebRequest https://developer.download.nvidia.com/compute/cuda/10.2/Prod/local_installers/cuda_10.2.89_441.22_win10.exe -OutFile cuda_inst.exe
+Start-Process -FilePath "cuda_inst.exe" -ArgumentList "-s nvcc_10.2" -Wait -NoNewWindow
+echo "::add-path::C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v10.2\bin"
+
+# Build AJA
+if (${env:sdk_pass}) {
+  $pair = "sdk:${env:sdk_pass}"
+  $encodedCreds = [System.Convert]::ToBase64String([System.Text.Encoding]::ASCII.GetBytes($pair))
+  $basicAuthValue = "Basic $encodedCreds"
+  $Headers = @{Authorization = $basicAuthValue}
+  Invoke-WebRequest -Headers $Headers https://frakira.fi.muni.cz/~xpulec/sdks/ntv2sdkwin.zip -OutFile aja.zip
+  Expand-Archive -LiteralPath 'aja.zip' -DestinationPath 'C:'
+  mv c:\ntv2sdk* c:\AJA
+  cd c:\AJA
+  MSBuild.exe ntv2_vs12.sln -p:PlatformToolset=v142 -p:Configuration=Release -p:Platform=x64 -t:libajantv2
+}
+
+# Install XIMEA
+if (${env:sdk_pass}) {
+  $pair = "sdk:${env:sdk_pass}"
+  $encodedCreds = [System.Convert]::ToBase64String([System.Text.Encoding]::ASCII.GetBytes($pair))
+  $basicAuthValue = "Basic $encodedCreds"
+  $Headers = @{Authorization = $basicAuthValue}
+  Invoke-WebRequest -Headers $Headers https://frakira.fi.muni.cz/~xpulec/sdks/ximea.zip -OutFile ximea.zip
+  Expand-Archive -LiteralPath 'ximea.zip' -DestinationPath 'C:'
+}

.github/scripts/Windows/prepare_msys.sh

@@ -0,0 +1,31 @@
+#!/bin/bash
+
+set -ex
+
+mkdir -p /usr/local/lib /usr/local/bin /usr/local/include
+cat >> ~/.bash_profile <<'EOF'
+export PATH=/mingw64/bin:/usr/local/bin:$PATH
+export CPATH=/usr/local/include
+export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig:/mingw64/lib/pkgconfig
+export LIBRARY_PATH=/usr/local/lib
+export CPATH=$CPATH:/c/Program\ Files/NVIDIA\ GPU\ Computing\ Toolkit/CUDA/v10.2/include
+EOF
+echo cd `cygpath $GITHUB_WORKSPACE` >> ~/.bash_profile
+
+. ~/.bash_profile
+
+# Install MSYS2 packages
+pacman -Sy --noconfirm automake autoconf git make pkg-config mingw-w64-x86_64-toolchain mingw-w64-x86_64-cppunit unzip zip
+
+# Build AJA wrapper
+data/scripts/build_aja_lib_win64.sh
+
+# Install FFMPEG
+wget --no-verbose https://ffmpeg.zeranoe.com/builds/win64/dev/ffmpeg-latest-win64-dev.zip && wget --no-verbose https://ffmpeg.zeranoe.com/builds/win64/shared/ffmpeg-latest-win64-shared.zip && unzip ffmpeg-latest-win64-dev.zip && unzip ffmpeg-latest-win64-shared.zip && cp -r ffmpeg-latest-win64-dev/include/* /usr/local/include && cp -r ffmpeg-latest-win64-dev/lib/* /usr/local/lib && cp -r ffmpeg-latest-win64-shared/bin/* /usr/local/bin && rm -rf ffmpeg-latest-*
+
+# Build GPUJPEG
+( cd gpujpeg && nvcc -I. -DGPUJPEG_EXPORTS -o gpujpeg.dll --shared src/gpujpeg_*c src/gpujpeg*cu && cp gpujpeg.lib /usr/local/lib && cp gpujpeg.dll /usr/local/bin && cp -r libgpujpeg /usr/local/include )
+
+# Build CineForm
+( cd cineform-sdk && cmake -DBUILD_STATIC=false -G Visual\ Studio\ 16\ 2019 -A x64 && MSBuild.exe CineFormSDK.sln -property:Configuration=Release && cp Release/CFHDCodec.dll /usr/local/bin && cp Release/CFHDCodec.lib /usr/local/lib && cp Common/* /usr/local/include && cp libcineformsdk.pc /usr/local/lib/pkgconfig )
+