much better input-device class registration

include/inputdev/SDeviceSignature.hpp

@@ -0,0 +1,37 @@
+#ifndef SDeviceSignature_HPP
+#define SDeviceSignature_HPP
+
+#include <vector>
+#include <functional>
+
+namespace boo
+{
+
+class CDeviceToken;
+class CDeviceBase;
+
+struct SDeviceSignature
+{
+    typedef std::vector<const SDeviceSignature*> TDeviceSignatureSet;
+    typedef std::function<CDeviceBase*(CDeviceToken*)> TFactoryLambda;
+    const char* m_name;
+    unsigned m_vid, m_pid;
+    bool m_lowLevel;
+    TFactoryLambda m_factory;
+    SDeviceSignature() : m_name(NULL) {} /* Sentinel constructor */
+    SDeviceSignature(const char* name, unsigned vid, unsigned pid, bool lowLevel, TFactoryLambda&& factory)
+        : m_name(name), m_vid(vid), m_pid(pid), m_lowLevel(lowLevel), m_factory(factory) {}
+    static bool DeviceMatchToken(const CDeviceToken& token, const TDeviceSignatureSet& sigSet);
+    static CDeviceBase* DeviceNew(CDeviceToken& token);
+};
+
+#define DEVICE_SIG(name, vid, pid, lowLevel) \
+    SDeviceSignature(#name, vid, pid, lowLevel, [](CDeviceToken* tok) -> CDeviceBase* {return new name(tok);})
+#define DEVICE_SIG_SENTINEL() SDeviceSignature()
+
+extern const SDeviceSignature BOO_DEVICE_SIGS[];
+
+}
+
+#endif // SDeviceSignature_HPP
+