OGL: Implement pixel metrics (untested)

Source/Core/VideoCommon/Src/PerfQueryBase.h

@@ -0,0 +1,39 @@
+#ifndef _PERFQUERY_BASE_H_
+#define _PERFQUERY_BASE_H_
+
+#include "CommonTypes.h"
+
+enum PerfQueryType
+{
+	PQ_ZCOMP_INPUT_ZCOMPLOC = 0,
+	PQ_ZCOMP_OUTPUT_ZCOMPLOC,
+	PQ_ZCOMP_INPUT,
+	PQ_ZCOMP_OUTPUT,
+	PQ_BLEND_INPUT,
+	PQ_EFB_COPY_CLOCKS,
+	PQ_NUM_MEMBERS
+};
+
+enum PerfQueryGroup
+{
+	PQG_ZCOMP_ZCOMPLOC,
+	PQG_ZCOMP,
+	PQG_EFB_COPY_CLOCKS,
+	PQG_NUM_MEMBERS,
+};
+
+class PerfQueryBase
+{
+public:
+	PerfQueryBase() {};
+	virtual ~PerfQueryBase() {}
+
+	virtual void EnableQuery(PerfQueryGroup type) {}
+	virtual void DisableQuery(PerfQueryGroup type) {}
+	virtual void ResetQuery() {}
+	virtual u32 GetQueryResult(PerfQueryType type) { return 0; }
+};
+
+extern PerfQueryBase* g_perf_query;
+
+#endif // _PERFQUERY_H_