private void FixedFrameRate_Click(object sender, EventArgs e)
{
if (FixedFrameRate.Text == "固定帧率接收") //1024*512的bmp图片全速接收时能到64帧,数据速率大概是100.6M字节/秒,基本达到千兆网实际传输速度上限
{ //实际应用中可能用不着这么高的帧率,所以可以用个定时器定时触发,限定一下帧率.
FixedFrameRate.Text = "停止接收"; //这里timer设置的是40ms,实测帧率为21帧左右.设置30ms帧率能到32
FrameRateTimer.Start();
}
else
{
FixedFrameRate.Text = "固定帧率接收";
FrameRateTimer.Stop();
}
}
public void Update(int millisecs)
{
if (AnimationType == SpriteAnimationType.SingleFrame)
{
if (Completed == false)
{
Completed = true;
}
return;
}
//update frame rate timer
FrameRateTimer.Update(millisecs);
if (FrameRateTimer.Completed)
{
//are we at end of animation strip
if (FrameCellIndex == (FrameCount - 1))
{
//act according to the animation type
if (AnimationType == SpriteAnimationType.NonLooping_ResetBackToStartingFrame)
{
//no reset of timer as this is where animation stops
FrameCellIndex = 0;
Completed = true;
}
else if (AnimationType == SpriteAnimationType.NonLooping_PauseOnEndFrame)
{
Completed = true;
}
else if (AnimationType == SpriteAnimationType.LoopingAnimation)
{
//reset back to cell zero and continue
FrameCellIndex = 0;
FrameRateTimer.Reset();
}
}
else
{
//keep going
FrameCellIndex += 1;
FrameRateTimer.Reset();
}
}
}
public void Reset()
{
FrameCellIndex = 0;
Completed = false;
FrameRateTimer.Reset();
}
// Handle attach to frame rate timer
private void AttachToFrameRateTimer(int framesPerSecond)
{
lock (s_frameRateTimers)
{
FrameRateTimer timer;
// Get static frame rate timer for given frames per second creating it if needed
if (!s_frameRateTimers.TryGetValue(framesPerSecond, out timer))
{
// Create a new frame rate timer which includes a high-precision timer for frame processing
timer = new FrameRateTimer(framesPerSecond);
// Add timer state for given rate to static collection
s_frameRateTimers.Add(framesPerSecond, timer);
}
// Increment reference count and attach instance method "StartFramePublication" to static timer event list
timer.AddReference(StartFramePublication);
m_attachedToFrameRateTimer = true;
}
}
// Handle attach to frame rate timer
private void AttachToFrameRateTimer(int framesPerSecond, int processingInterval)
{
Tuple<int, int> key = new Tuple<int, int>(Math.Min(framesPerSecond, 1000), processingInterval);
lock (s_frameRateTimers)
{
if (!m_attachedToFrameRateTimer)
{
FrameRateTimer timer;
// Get static frame rate timer for given frames per second creating it if needed
if (!s_frameRateTimers.TryGetValue(key, out timer))
{
// Create a new frame rate timer which includes a high-precision timer for frame processing
timer = new FrameRateTimer(key.Item1, key.Item2);
// Add timer state for given rate to static collection
s_frameRateTimers.Add(key, timer);
}
// Increment reference count and attach instance method "StartFramePublication" to static timer event list
timer.AddReference(StartFramePublication);
m_attachedToFrameRateTimer = true;
}
}
}