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(Windows) Add support for finding the bundled version of Jack which comes with Mixbus

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A few things need to be tested / completed:-
    1) The code is currently guarded by #ifdef COMPILER_MSVC. This is just precautionary. If it builds okay with MinGW ,the guard can be removed.
    2) Windows Playback and Capture devices almost always have different names. This needs to get accommodated in our Backend dialog (as in Mixbus)
    3) Windows Playback and Capture devices will almost always contain spaces. We need to accommodate this when writing to .jackdrc (surround them in quote marks)
This commit is contained in:
John Emmas 2014-05-27 14:48:44 +01:00
parent 5b4cb15dfc
commit 458d4dc6de
1 changed files with 59 additions and 0 deletions
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59
libs/backends/jack/jack_utils.cc
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@ -29,6 +29,11 @@
#include <mach-o/dyld.h>
#endif
#ifdef PLATFORM_WINDOWS
#include <shobjidl.h> // Needed for
#include <shlguid.h> // 'IShellLink'
#endif
#ifdef HAVE_PORTAUDIO
#include <portaudio.h>
#endif
@ -584,6 +589,60 @@ ARDOUR::get_jack_server_dir_paths (vector<std::string>& server_dir_paths)
Searchpath sp(string(g_getenv("PATH")));
#ifdef PLATFORM_WINDOWS
// N.B. The #define (immediately below) can be safely removed once we know that this code builds okay with mingw
#ifdef COMPILER_MSVC
IShellLinkA *pISL = NULL;
IPersistFile *ppf = NULL;
// Mixbus creates a Windows shortcut giving the location of its
// own (bundled) version of Jack. Let's see if that shortcut exists
if (SUCCEEDED (CoCreateInstance(CLSID_ShellLink, NULL, CLSCTX_INPROC_SERVER, IID_IShellLink, (void**)&pISL)))
{
if (SUCCEEDED (pISL->QueryInterface(IID_IPersistFile, (LPVOID*)&ppf)))
{
char target_path[MAX_PATH];
char shortcut_pathA[MAX_PATH];
WCHAR shortcut_pathW[MAX_PATH];
// Our Windows installer should have created a shortcut to the Jack
// server so let's start by finding out what drive it got installed on
if (char *env_path = getenv ("windir"))
{
strcpy (shortcut_pathA, env_path);
shortcut_pathA[2] = '\0'; // Gives us just the drive letter and colon
}
else // Assume 'C:'
strcpy (shortcut_pathA, "C:");
strcat (shortcut_pathA, "\\Program Files (x86)\\Jack\\Start Jack.lnk");
MultiByteToWideChar (CP_ACP, MB_PRECOMPOSED, shortcut_pathA, -1, shortcut_pathW, MAX_PATH);
// If it did, load the shortcut into our persistent file
if (SUCCEEDED (ppf->Load(shortcut_pathW, 0)))
{
// Read the target information from the shortcut object
if (S_OK == (pISL->GetPath (target_path, MAX_PATH, NULL, SLGP_UNCPRIORITY)))
{
char *p = strrchr (target_path, '\\');
if (p)
{
*p = NULL;
sp.push_back (target_path);
}
}
}
}
}
if (ppf)
ppf->Release();
if (pISL)
pISL->Release();
#endif
gchar *install_dir = g_win32_get_package_installation_directory_of_module (NULL);
if (install_dir) {
sp.push_back (install_dir);