remove fallback_folders code, add simpler more focused get_vst_search_path() and breakout get_win_special_folder() into its own file

1 files changed, 140 insertions, 0 deletions

diff --git a/libs/ardour/vst_search_path.cc b/libs/ardour/vst_search_path.cc
new file mode 100644
index 0000000000..032bce355d
--- /dev/null
+++ b/libs/ardour/vst_search_path.cc
@@ -0,0 +1,140 @@
+/*
+    Copyright (C) 2008 John Emmas
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include <glib.h>
+#include <glibmm.h>
+#include <string.h>
+
+#include "ardour/vst_search_path.h"
+
+#ifdef PLATFORM_WINDOWS
+
+#include "pbd/windows_special_dirs.h"
+
+namespace ARDOUR {
+
+char*
+vst_search_path ()
+{
+	DWORD dwType = REG_SZ;  
+	HKEY hKey;
+	DWORD dwSize = PATH_MAX;  
+	char* p = 0;
+	gchar  *user_home = 0;
+
+	if (ERROR_SUCCESS == RegOpenKeyExA (HKEY_CURRENT_USER, "Software\\VST", 0, KEY_READ, &hKey)) {
+		// Look for the user's VST Registry entry
+		if (ERROR_SUCCESS == RegQueryValueExA (hKey, "VSTPluginsPath", 0, &dwType, (LPBYTE)tmp, &dwSize)) {
+			p = g_build_filename (Glib::locale_to_utf8(tmp).c_str(), 0);
+		}
+		RegCloseKey (hKey);
+		
+		if (p == 0) {
+			if (ERROR_SUCCESS == RegOpenKeyExA (HKEY_LOCAL_MACHINE, "Software\\VST", 0, KEY_READ, &hKey)) {
+				// Look for a global VST Registry entry
+				if (ERROR_SUCCESS == RegQueryValueExA (hKey, "VSTPluginsPath", 0, &dwType, (LPBYTE)tmp, &dwSize))
+					p = g_build_filename (Glib::locale_to_utf8(tmp).c_str(), 0);
+				
+				RegCloseKey (hKey);
+			}
+			
+			if (p == 0) {
+				char *pVSTx86 = 0;
+				char *pProgFilesX86 = get_win_special_folder (CSIDL_PROGRAM_FILESX86);
+				
+				if (pProgFilesX86) {
+					// Look for a VST folder under C:\Program Files (x86)
+					if (pVSTx86 = g_build_filename (pProgFilesX86, "Steinberg", "VSTPlugins", 0)) {
+						if (Glib::file_test (pVSTx86, Glib::FILE_TEST_EXISTS))
+							if (Glib::file_test (pVSTx86, Glib::FILE_TEST_IS_DIR))
+								p = g_build_filename (pVSTx86, 0);
+						
+						g_free (pVSTx86);
+					}
+					
+					g_free (pProgFilesX86);
+				}
+			}
+
+			if (p == 0) {
+				// Look for a VST folder under C:\Program Files
+				char *pVST = 0;
+				char *pProgFiles = get_win_special_folder (CSIDL_PROGRAM_FILES);
+				
+				if (pProgFiles) {
+					if (pVST = g_build_filename (pProgFiles, "Steinberg", "VSTPlugins", 0)) {
+						if (Glib::file_test (pVST, Glib::FILE_TEST_EXISTS))
+							if (Glib::file_test (pVST, Glib::FILE_TEST_IS_DIR))
+								p = g_build_filename (pVST, 0);
+						g_free (pVST);
+					}
+					
+					g_free (pProgFiles);
+				}
+			}
+		}
+		
+		if (p == 0) {
+			// If all else failed, assume the plugins are under "My Documents"
+			user_home = g_get_user_special_dir (G_USER_DIRECTORY_DOCUMENTS);
+			if (user_home) {
+				p = g_build_filename (user_home, "Plugins", "VST", 0);
+			} else {
+				user_home = g_build_filename(g_get_home_dir(), "My Documents", 0);
+				if (user_home)
+					p = g_build_filename (user_home, "Plugins", "VST", 0);
+			}
+		} else {
+			// Concatenate the registry path with the user's personal path
+
+			user_home = g_get_user_special_dir (G_USER_DIRECTORY_DOCUMENTS);
+			
+			if (user_home) {
+				p = g_build_path (";", p, g_build_filename(user_home, "Plugins", "VST", 0), 0);
+			} else {
+				user_home = g_build_filename(g_get_home_dir(), "My Documents", 0);
+				if (user_home) {
+					p = g_build_path (";", p, g_build_filename (user_home, "Plugins", "VST", 0), 0);
+				}
+			}
+		}
+	}
+
+	return p;
+}
+
+}  // namespace ARDOUR
+
+#else 
+
+/* Unix-like. Probably require some OS X specific breakdown if we ever add VST
+ * support on that platform.
+ */
+
+namespace ARDOUR {
+
+const char *
+vst_search_path ()
+{
+	return "/usr/local/lib/vst:/usr/lib/vst";
+}
+
+} // namespace ARDOUR
+
+#endif /* PLATFORM_WINDOWS */
+