Add basic performance counters.

Add in debug window new tab with this counters.

1 files changed, 62 insertions, 0 deletions

diff --git a/src/utils/perfstat.h b/src/utils/perfstat.h
new file mode 100644
index 000000000..97e5e1a07
--- /dev/null
+++ b/src/utils/perfstat.h
@@ -0,0 +1,62 @@
+/*
+ *  The ManaPlus Client
+ *  Copyright (C) 2018  The ManaPlus Developers
+ *
+ *  This file is part of The ManaPlus Client.
+ *
+ *  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
+ *  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, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef UTILS_PERFSTAT_H
+#define UTILS_PERFSTAT_H
+
+#include "const/utils/perfstat.h"
+
+#include "localconsts.h"
+
+struct PerfStats
+{
+    PerfStats()
+    {
+        for (int f = 0; f < 16; f ++)
+            ticks[f] = -1;
+    }
+
+    int ticks[16];
+};
+
+namespace Perf
+{
+    void init();
+    void nextFrame();
+    void selectWorstFrame();
+    int getTime(const size_t frameId,
+                const size_t counterId);
+    int getWorstTime(const size_t counterId);
+}
+
+extern PerfStats perfStats[PERFSTAT_MAX];
+extern size_t perfFrameId;
+extern size_t prevPerfFrameId;
+extern int *perfFrame;
+extern PerfStats worstFrameStats;
+extern int skipPerfFrames;
+
+#define PERF_STAT(n) \
+    perfFrame[n] = tick_time
+
+#define PERF_NEXTFRAME() \
+    Perf::nextFrame()
+
+#endif  // UTILS_PERFSTAT_H