From df81adcb2263f643621649edcba4b4521456eb2b Mon Sep 17 00:00:00 2001
From: Barry <870709864@qq.com>
Date: Mon, 29 Oct 2018 23:36:36 +0800
Subject: [PATCH] =?UTF-8?q?=E5=A2=9E=E5=8A=A0=E5=B8=A7=E7=8E=87=E7=BB=9F?=
 =?UTF-8?q?=E8=AE=A1?=
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---
 src/QtScrcpy.pro   |  6 ++--
 src/fpscounter.cpp | 74 ++++++++++++++++++++++++++++++++++++++++++++++
 src/fpscounter.h   | 32 ++++++++++++++++++++
 3 files changed, 110 insertions(+), 2 deletions(-)
 create mode 100644 src/fpscounter.cpp
 create mode 100644 src/fpscounter.h

diff --git a/src/QtScrcpy.pro b/src/QtScrcpy.pro
index 5b9fff3..83b4096 100644
--- a/src/QtScrcpy.pro
+++ b/src/QtScrcpy.pro
@@ -33,7 +33,8 @@ SOURCES += \
         server.cpp \
     convert.cpp \
     frames.cpp \
-    yuvglwidget.cpp
+    yuvglwidget.cpp \
+    fpscounter.cpp
 
 HEADERS += \
         dialog.h \
@@ -42,7 +43,8 @@ HEADERS += \
         server.h \
     convert.h \
     frames.h \
-    yuvglwidget.h
+    yuvglwidget.h \
+    fpscounter.h
 
 FORMS += \
         dialog.ui
diff --git a/src/fpscounter.cpp b/src/fpscounter.cpp
new file mode 100644
index 0000000..255d51f
--- /dev/null
+++ b/src/fpscounter.cpp
@@ -0,0 +1,74 @@
+#include <QDebug>
+
+#include "fpscounter.h"
+
+FpsCounter::FpsCounter()
+{
+
+}
+
+FpsCounter::~FpsCounter()
+{
+
+}
+
+void FpsCounter::fpsCounterInit()
+{
+    m_started = false;
+    // no need to initialize the other fields, they are meaningful only when
+    // started is true
+}
+
+void FpsCounter::fpsCounterStart()
+{
+    m_started = true;
+    m_timeCounter.start();
+    m_rendered = 0;
+#ifdef SKIP_FRAMES
+    m_skipped = 0;
+#endif
+}
+
+void FpsCounter::fpsCounterStop()
+{
+    m_started = false;
+}
+
+void FpsCounter::fpsCounterAddRenderedFrame()
+{
+    checkExpired();
+    m_rendered++;
+}
+
+void FpsCounter::checkExpired()
+{
+    if (m_timeCounter.elapsed() >= 1000) {
+        displayFps();
+        m_timeCounter.restart();
+        m_rendered = 0;
+#ifdef SKIP_FRAMES
+        m_skipped = 0;
+#endif
+       }
+}
+
+void FpsCounter::displayFps()
+{
+#ifdef SKIP_FRAMES
+    if (m_skipped) {
+        //qInfo << "%d fps (+%d frames skipped)", m_rendered, m_skipped);
+    } else {
+#endif
+    //qInfo m_rendered << "fps";
+#ifdef SKIP_FRAMES
+    }
+#endif
+}
+
+#ifdef SKIP_FRAMES
+void FpsCounter::fpsCounterAddSkippedFrame()
+{
+    checkExpired();
+    m_skipped++;
+}
+#endif
diff --git a/src/fpscounter.h b/src/fpscounter.h
new file mode 100644
index 0000000..baac75c
--- /dev/null
+++ b/src/fpscounter.h
@@ -0,0 +1,32 @@
+#ifndef FPSCOUNTER_H
+#define FPSCOUNTER_H
+#include <QTime>
+
+class FpsCounter
+{
+public:
+    FpsCounter();
+    virtual ~FpsCounter();
+
+    void fpsCounterInit();
+    void fpsCounterStart();
+    void fpsCounterStop();
+    void fpsCounterAddRenderedFrame();
+#ifdef SKIP_FRAMES
+    void fpsCounterAddSkippedFrame();
+#endif
+
+private:
+    void checkExpired();
+    void displayFps();
+
+private:
+    bool m_started = false;
+    QTime m_timeCounter;
+    quint32 m_rendered = 0;
+#ifdef SKIP_FRAMES
+    quint32 m_skipped = 0;
+#endif
+};
+
+#endif // FPSCOUNTER_H