1 files changed, 158 insertions, 0 deletions
diff --git a/facetracknoir/plugin-support.cpp b/facetracknoir/plugin-support.cpp
new file mode 100644
index 00000000..e9154bb7
--- /dev/null
+++ b/facetracknoir/plugin-support.cpp
@@ -0,0 +1,158 @@
+#include <cstdio>
+#include "plugin-support.h"
+#include <QCoreApplication>
+#include <QFile>
+
+#ifndef _WIN32
+#   include <dlfcn.h>
+#endif
+
+SelectedLibraries* Libraries = NULL;
+
+SelectedLibraries::~SelectedLibraries()
+{
+    if (pTracker) {
+        delete pTracker;
+        pTracker = NULL;
+    }
+
+    if (pFilter)
+        delete pFilter;
+
+    if (pProtocol)
+        delete pProtocol;
+}
+
+SelectedLibraries::SelectedLibraries(IDynamicLibraryProvider* mainApp) :
+    pTracker(NULL), pFilter(NULL), pProtocol(NULL)
+{
+    correct = false;
+    if (!mainApp)
+        return;
+    CTOR_FUNPTR ptr;
+    DynamicLibrary* lib;
+
+    lib = mainApp->current_tracker1();
+
+    if (lib && lib->Constructor) {
+        ptr = (CTOR_FUNPTR) lib->Constructor;
+        pTracker = (ITracker*) ptr();
+    }
+
+    lib = mainApp->current_protocol();
+
+    if (lib && lib->Constructor) {
+        ptr = (CTOR_FUNPTR) lib->Constructor;
+        pProtocol = (IProtocol*) ptr();
+    }
+
+    lib = mainApp->current_filter();
+
+    if (lib && lib->Constructor) {
+        ptr = (CTOR_FUNPTR) lib->Constructor;
+        pFilter = (IFilter*) ptr();
+    }
+
+    if (pProtocol)
+        if(!pProtocol->checkServerInstallationOK())
+            return;
+    if (pTracker) {
+        pTracker->StartTracker( mainApp->get_video_widget() );
+    }
+
+    correct = true;
+}
+
+DynamicLibrary::DynamicLibrary(const QString& filename) :
+    Dialog(nullptr),
+    Constructor(nullptr),
+    Metadata(nullptr)
+{
+    this->filename = filename;
+#if defined(_WIN32)
+    QString fullPath = QCoreApplication::applicationDirPath() + "/" + this->filename;
+    handle = new QLibrary(fullPath);
+    
+    struct _foo {
+        static bool die(QLibrary*& l, bool failp)
+        {
+            if (failp)
+            {
+                qDebug() << "failed" << l->errorString();
+                delete l;
+                l = nullptr;
+            }
+            return failp;
+        }
+    };
+    
+    if (_foo::die(handle, !handle->load()))
+        return;
+    
+    Dialog = (DIALOG_FUNPTR) handle->resolve("GetDialog");
+    if (_foo::die(handle, !Dialog))
+        return;
+    
+    Constructor = (CTOR_FUNPTR) handle->resolve("GetConstructor");
+    if (_foo::die(handle, !Constructor))
+        return;
+    
+    Metadata = (METADATA_FUNPTR) handle->resolve("GetMetadata");
+    if (_foo::die(handle, !Metadata))
+        return;
+#else
+    QByteArray latin1 = QFile::encodeName(filename);
+    handle = dlopen(latin1.constData(), RTLD_NOW |
+#   ifdef __linux
+                    RTLD_DEEPBIND
+#   elif defined(__APPLE__)
+                    RTLD_LOCAL|RTLD_FIRST|RTLD_NOW
+#   else
+                    0
+#   endif
+                    );
+
+    struct _foo {
+        static bool err(void*& handle)
+        {
+            const char* err = dlerror();
+            if (err)
+            {
+                fprintf(stderr, "Error, ignoring: %s\n", err);
+                fflush(stderr);
+                dlclose(handle);
+                handle = nullptr;
+                return true;
+            }
+            return false;
+        }
+    };
+
+    if (handle)
+    {
+        if (_foo::err(handle))
+            return;
+        Dialog = (DIALOG_FUNPTR) dlsym(handle, "GetDialog");
+        if (_foo::err(handle))
+            return;
+        Constructor = (CTOR_FUNPTR) dlsym(handle, "GetConstructor");
+        if (_foo::err(handle))
+            return;
+        Metadata = (METADATA_FUNPTR) dlsym(handle, "GetMetadata");
+        if (_foo::err(handle))
+            return;
+    } else {
+        (void) _foo::err(handle);
+    }
+#endif
+}
+
+DynamicLibrary::~DynamicLibrary()
+{
+#if defined(_WIN32)
+    handle->unload();
+#else
+    if (handle)
+        (void) dlclose(handle);
+#endif
+}