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ASIO PowerShell script #4

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13 changes: 10 additions & 3 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -30,9 +30,16 @@ Also see the [PortAudioBasic](samples/PortAudioBasic/src/PortAudioBasicApp.cpp)

### Enabling Windows ASIO backend

For ASIO support, download ASIO Sdk from the Steinberg website [here](https://www.steinberg.net/en/company/developers.html), unzip and move to a folder at `lib/ASIOSDK`.
For ASIO support on Windows, the simplest approach is to run the included `lib\install_msw_asio.ps1` from a Command Prompt:

Then make sure that the following preprocessor macro is defined in our project:
```
cd <Path to Cinder-PortAudio>
powershell lib\install_msw_asio.ps1
```

Alternatively, the following can be done by hand. Download the ASIO SDK from the Steinberg website [here](https://www.steinberg.net/en/company/developers.html), unzip, and move to a folder at `lib/ASIOSDK`.

Then make sure that the following preprocessor macro is defined in your project:

```
PA_USE_ASIO=1
Expand All @@ -49,7 +56,7 @@ lib/ASIOSDK/host/pc/asiolist.cpp

##### Enable Unicode Character Set

Most cinder projects are build with Unicode Character Set (Configuration Properties -> General -> Character Set) and to make ASIO compatible with this, you need to add the following line to the top of _lib/ASIOSDK/host/pc/asiolist.cpp_, directly above the <#include "windows.h>`:
Most Cinder projects are build with Unicode Character Set (Configuration Properties -> General -> Character Set) and to make ASIO compatible with this, you need to add the following line to the top of _lib/ASIOSDK/host/pc/asiolist.cpp_, directly above the `<#include "windows.h>`:

```
#undef UNICODE
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20 changes: 20 additions & 0 deletions lib/install_msw_asio.ps1
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@@ -0,0 +1,20 @@
if( ! (Test-Path "$PSScriptRoot\ASIOSDK2.3.2.zip" -PathType Leaf) ) {
Write-Host "Downloading ASIO SDK 2.3.2"
iwr -outf "$PSScriptRoot\ASIOSDK2.3.2.zip" http://www.steinberg.net/sdk_downloads/ASIOSDK2.3.2.zip
}

if( ! (Test-Path "$PSScriptRoot\ASIOSDK" -PathType Container) ) {
Write-Host "Unzipping to lib\ASIOSDK"
Expand-Archive "$PSScriptRoot\ASIOSDK2.3.2.zip" "$PSScriptRoot\temp"
Move-Item $PSScriptRoot\temp\ASIOSDK2.3.2 $PSScriptRoot\ASIOSDK
Remove-Item $PSScriptRoot\temp
Remove-Item $PSScriptRoot\ASIOSDK2.3.2.zip
}

$asiolistPath = "$PSScriptRoot\ASIOSDK\host\pc\asiolist.cpp"
if( !( Select-String -Pattern "#undef UNICODE" -Path $asiolistPath -Quiet ) ) {
Write-Host "Prepending `"#undef UNICODE`" to asiolist.cpp"
((Get-Content $asiolistPath -Raw) -replace "#include <windows.h>", "#undef UNICODE`r`n#include <windows.h>") | Set-Content -Path $asiolistPath
}

Write-Host "ASIO SDK downloaded and setup"