public void WriteableBitmapTest() { IpcImageFileMapped ipcImage = IpcImageFileMapped.LoadFromFile(ImageUris.Bgr32); var bitmap = ipcImage.GetWriteableBitmap(); var pixelArray = new UInt32[50]; bitmap.CopyPixels(new Int32Rect(0, 0, 5, 10), pixelArray, ipcImage.Stride, 0); for (var i = 0; i < 50; i++) { var value = pixelArray[i]; if (i >= 0 && i < 5) { Assert.AreEqual(0xFF000000, value); //row 0 } if (i >= 5 && i < 10) { Assert.AreEqual(0xFFFFFFFF, value); //row 1 } if (i >= 20 && i < 25) { Assert.AreEqual(0xFF01017F, value); // row 4 } if (i >= 30 && i < 35) { Assert.AreEqual(0xFF017F01, value); // row 6 } if (i >= 40 && i < 45) { Assert.AreEqual(0xFF7F0101, value); // row 8 } if (i % 5 == 0) { Console.WriteLine("\n"); } Console.Write(value.ToString("X") + "-"); } }
public void WriteableBitmapMemoryDiagnostic() { List <double> memoryList = new List <double>(); memoryList.Add(Process.GetCurrentProcess().WorkingSet64); IpcImageFileMapped ipcImage = IpcImageFileMapped.LoadFromFile(ImageUris.LargeBmp); GC.Collect(GC.MaxGeneration, GCCollectionMode.Forced, true); GC.WaitForPendingFinalizers(); GC.Collect(GC.MaxGeneration, GCCollectionMode.Forced, true); GC.WaitForFullGCComplete(); memoryList.Add(Process.GetCurrentProcess().WorkingSet64); var pixelArray = new UInt32[2048 * 2048]; memoryList.Add(Process.GetCurrentProcess().WorkingSet64); var random = new Random(); for (uint i = 0; i < pixelArray.Length; i++) { pixelArray[i] = (uint)random.Next(Int32.MaxValue); } memoryList.Add(Process.GetCurrentProcess().WorkingSet64); var bitmap = ipcImage.GetWriteableBitmap(); memoryList.Add(Process.GetCurrentProcess().WorkingSet64); bitmap.CopyPixels(new Int32Rect(0, 0, 2048, 2048), pixelArray, ipcImage.Stride, 0); memoryList.Add(Process.GetCurrentProcess().WorkingSet64); bitmap.Lock(); bitmap.AddDirtyRect(new Int32Rect(0, 0, 2048, 2048)); bitmap.Unlock(); memoryList.Add(Process.GetCurrentProcess().WorkingSet64); GC.Collect(GC.MaxGeneration, GCCollectionMode.Forced, true); GC.WaitForPendingFinalizers(); GC.Collect(GC.MaxGeneration, GCCollectionMode.Forced, true); GC.WaitForFullGCComplete(); ; for (var i = 0; i < 10; i++) { bitmap.Lock(); bitmap.AddDirtyRect(new Int32Rect(0, 0, 2048, 2048)); bitmap.Unlock(); bitmap.CopyPixels(new Int32Rect(0, 0, 2048, 2048), pixelArray, ipcImage.Stride, 0); memoryList.Add(Process.GetCurrentProcess().WorkingSet64); } Console.WriteLine("Initial: " + memoryList[0]); Console.WriteLine("Ipc Image: " + memoryList[1] + " : " + (memoryList[1] - memoryList[0])); Console.WriteLine("Array Init: " + memoryList[2] + " : " + (memoryList[2] - memoryList[1])); Console.WriteLine("ArrayFill: " + memoryList[3] + " : " + (memoryList[3] - memoryList[2])); Console.WriteLine("Bitmap: " + memoryList[4] + " : " + (memoryList[4] - memoryList[3])); Console.WriteLine("Copy: " + memoryList[5] + " : " + (memoryList[5] - memoryList[4])); Console.WriteLine("Invalidate: " + memoryList[6] + " : " + (memoryList[6] - memoryList[5])); Console.WriteLine("Loop: "); for (var i = 7; i < memoryList.Count; i++) { Console.WriteLine(memoryList[i] + " : " + (memoryList[i] - memoryList[i - 1])); } }