basic profiling

[pcsx_rearmed.git] / frontend / pcnt.h

diff --git a/frontend/pcnt.h b/frontend/pcnt.h
new file mode 100644 (file)
index 0000000..57bc88a
--- /dev/null
+++ b/frontend/pcnt.h
@@ -0,0 +1,52 @@
+
+enum pcounters {
+       PCNT_ALL,
+       PCNT_GPU,
+       PCNT_SPU,
+       PCNT_CNT
+};
+
+extern unsigned int pcounters[PCNT_CNT];
+extern unsigned int pcounter_starts[PCNT_CNT];
+
+#define pcnt_start(id) \
+       pcounter_starts[id] = pcnt_get()
+
+#define pcnt_end(id) \
+       pcounters[id] += pcnt_get() - pcounter_starts[id]
+
+void pcnt_hook_plugins(void);
+
+static inline void pcnt_print(float fps)
+{
+       unsigned int total, gpu, spu, rem;
+       int i;
+
+       for (i = 0; i < PCNT_CNT; i++)
+               pcounters[i] >>= 10;
+
+       total = pcounters[PCNT_ALL];
+       gpu = pcounters[PCNT_GPU];
+       spu = pcounters[PCNT_SPU];
+       rem = total - gpu - spu;
+       if (!total)
+               total++;
+
+       printf("%2.1f %6u %6u %6u (%2d %2d %2d)\n", fps, gpu, spu, rem,
+               gpu * 100 / total, spu * 100 / total, rem * 100 / total);
+
+       memset(pcounters, 0, sizeof(pcounters));
+}
+
+static inline unsigned int pcnt_get(void)
+{
+       unsigned int val;
+#ifdef __ARM_ARCH_7A__
+       __asm__ volatile("mrc p15, 0, %0, c9, c13, 0"
+                        : "=r"(val));
+#else
+       val = 0;
+#endif
+       return val;
+}
+