private void UpdatePropertyView(double x, double y, uint width, uint height, EventTypePluginData data)
{
Debug.Assert(data != null);
bool doEvent = false;
lock (this.lockObj)
{
if (this.selectedData != data)
{
doEvent = true;
this.selectedData = data;
}
data.selected2DPixelX = 0;
data.selected2DPixelY = 0;
data.selected2DPixelColor = Colors.Black;
if (width == data.imageWidth)
{
data.selected2DPixelX = (uint)x;
}
else
{
data.selected2DPixelX = (uint)((x / width) * data.imageWidth);
}
if (height == data.imageHeight)
{
data.selected2DPixelY = (uint)y;
}
else
{
data.selected2DPixelY = (uint)((y / height) * data.imageHeight);
}
ColorPlugin.UpdateSelectedPixelValue(data);
}
this.RaisePropertyChanged("Selected2DPixelX");
this.RaisePropertyChanged("Selected2DPixelY");
this.RaisePropertyChanged("Selected2DPixelColor");
if (doEvent)
{
this.RaisePropertyChanged("HasSelected2DPixelData");
}
}
private viz.Texture UpdateData(EventTypePluginData data)
{
Debug.Assert(data != null);
viz.Texture value = null;
bool doDataEvent = false;
bool doVisibleEvent = false;
lock (this.lockObj)
{
bool updated = false;
value = data.colorTexture;
bool isSelectedData = (this.selectedData == data);
data.visibleChanged = false;
if (data.needsUpdate && (data.sharedColorFrame != null) && (data.sharedColorFrame.Buffer != IntPtr.Zero) && (data.colorTexture != null))
{
try
{
if (data.doDecompress)
{
DateTime now = DateTime.Now;
if (now > this.nextDecompress)
{
data.timer.Stop();
doVisibleEvent = isSelectedData && (!data.hasValidData || data.visibleChanged);
data.needsUpdate = false;
data.hasValidData = true;
updated = true;
if ((data.decompressMemoryStreamBuffer == null) || (data.decompressMemoryStreamBuffer.Length < data.sharedColorFrame.Size))
{
data.decompressMemoryStreamBuffer = new byte[data.sharedColorFrame.Size];
}
uint convertBufferSize = data.imageWidth * data.imageHeight * 3;
if ((data.convertColorBuffer == null) || (data.convertColorBuffer.Length < convertBufferSize))
{
data.convertColorBuffer = new byte[convertBufferSize];
}
byte[] rgbBuffer = data.convertColorBuffer;
if (this.averageDecompressCount > 10)
{
this.averageDecompressCount = 1;
this.stopwatch.Reset();
}
else
{
this.averageDecompressCount++;
}
this.stopwatch.Start();
Marshal.Copy(data.sharedColorFrame.Buffer, data.decompressMemoryStreamBuffer, 0, (int)data.sharedColorFrame.Size);
using (Stream imageStream = new MemoryStream(data.decompressMemoryStreamBuffer))
{
// this has to run on the UI thread
JpegBitmapDecoder decoder = new JpegBitmapDecoder(imageStream, BitmapCreateOptions.PreservePixelFormat, BitmapCacheOption.Default);
BitmapSource bitmapSource = decoder.Frames[0];
bitmapSource.CopyPixels(rgbBuffer, (int)(data.imageWidth * 3), 0);
// expand bgr to rgba
uint imageSize = data.imageWidth * data.imageHeight;
for (uint index = 0; index < imageSize; ++index)
{
uint rgbaIndex = index * 4;
uint bgrIndex = index * 3;
data.rgbaFrame[rgbaIndex] = rgbBuffer[bgrIndex + 2];
data.rgbaFrame[rgbaIndex + 1] = rgbBuffer[bgrIndex + 1];
data.rgbaFrame[rgbaIndex + 2] = rgbBuffer[bgrIndex];
data.rgbaFrame[rgbaIndex + 3] = 0xFF;
}
}
this.stopwatch.Stop();
// color decompression takes a LONG time (sometimes upwards of 1/10 of second), so throttle it
double averageDecompressTime = ((double)this.stopwatch.ElapsedMilliseconds) / this.averageDecompressCount;
double sinceLastDecompress = (now - this.lastDecompress).TotalMilliseconds;
if (sinceLastDecompress > 1000)
{
this.nextDecompress = now + TimeSpan.FromMilliseconds(averageDecompressTime * 2);
}
else
{
double minTime = Math.Max(sinceLastDecompress, averageDecompressTime * 2);
this.nextDecompress = now + TimeSpan.FromMilliseconds(minTime);
}
this.lastDecompress = now;
}
}
else
{
data.timer.Stop();
doVisibleEvent = isSelectedData && (!data.hasValidData || data.visibleChanged);
data.needsUpdate = false;
data.hasValidData = true;
updated = true;
unsafe
{
fixed(byte *p = data.rgbaFrame)
{
GCHandle rgbaFrameHandle = GCHandle.Alloc(data.rgbaFrame, GCHandleType.Pinned);
NativeMethods.ConvertYUYVToRGBA(
data.sharedColorFrame.Buffer,
data.sharedColorFrame.Size,
rgbaFrameHandle.AddrOfPinnedObject(),
(uint)data.rgbaFrame.Length);
}
}
}
}
catch (Exception)
{
// TODO_LOG
}
}
if (updated)
{
if (ColorPlugin.UpdateSelectedPixelValue(data))
{
doDataEvent = isSelectedData;
}
if ((data.colorTexture != null) && (data.rgbaFrame != null))
{
unsafe
{
fixed(byte *pFrame = data.rgbaFrame)
{
data.colorTexture.UpdateData(pFrame, (uint)data.rgbaFrame.Length);
}
}
}
}
}
if (doVisibleEvent)
{
this.RaisePropertyChanged("HasSelected2DPixelData");
}
if (doDataEvent)
{
this.RaisePropertyChanged("Selected2DPixelColor");
}
return(value);
}