Ticket #3986: 3986-test-1.patch

libs/libmythtv/guidegrid.cpp

@@ -56 +56 @@
         qApp->unlock();
 
         while (gg->isVisible())
-            usleep(50);
+            usleep(5000);
     }
     else
         gg->exec();

libs/libmythtv/videoout_xv.cpp

@@ -2982 +2982 @@
         gl_context->SwapBuffers();
     }
 
+    uint64_t startt, endt;
+    rdtsc(startt);
     X11S(XSync(XJ_disp, False));
+    rdtsc(endt);
+    if (endt > startt)
+        cout<<(endt-startt)<<":";
 }
 
 void VideoOutputXv::ShowPip(VideoFrame *frame, NuppelVideoPlayer *pipplayer)

libs/libmyth/util.h

@@ -78 +78 @@
 MPUBLIC QString createTempFile(QString name_template = "/tmp/mythtv_XXXXXX",
                                bool dir = false);
 
+// CPU Tick timing function
+#ifdef MMX
+#ifdef _WIN32
+typedef LONGLONG uint64_t
+inline void rdtsc(uint64_t &x)
+{
+    QueryPerformanceCounter((LARGE_INTEGER*)(&x));
+}
+#else
+typedef struct {
+    uint a;
+    uint b;
+} timing_ab_t;
+inline void rdtsc(uint64_t &x)
+{
+    timing_ab_t &y = (timing_ab_t&) x;
+    asm("rdtsc \n"
+        "mov %%eax, %0 \n"
+        "mov %%edx, %1 \n"
+        :
+        : "m"(y.a), "m"(y.b)
+        : "%eax", "%edx");
+}
+#endif
+
+#else // if !MMX
+inline void rdtsc(uint64_t &x) { x = 0ULL; }
+#endif // !MMX
+
 #endif // UTIL_H_