public void SetPixelARGB()
{
int rows = 19;
int columns = 7;
int bitsAllocated = 8;
int samplesPerPixel = 4;
int imageSize = rows * columns * bitsAllocated / 8 * samplesPerPixel;
byte[] pixelData = new byte[imageSize];
ColorPixelData pixelDataWrapper = new ColorPixelData(
rows,
columns,
pixelData);
int x = 3;
int y = 4;
Color testValue = Color.FromArgb(10, 20, 30);
pixelDataWrapper.SetPixel(x, y, testValue);
Color actualValue = pixelDataWrapper.GetPixelAsColor(x, y);
Assert.AreEqual(testValue, actualValue);
pixelDataWrapper.SetPixel(x, y, testValue.ToArgb());
actualValue = pixelDataWrapper.GetPixelAsColor(x, y);
Assert.AreEqual(testValue, actualValue);
pixelDataWrapper.SetPixel(x, y, testValue.ToArgb());
actualValue = Color.FromArgb(pixelDataWrapper.GetPixel(x, y));
Assert.AreEqual(testValue, actualValue);
// Make sure it works with unsafe code too
fixed(byte *pPixelData = pixelDataWrapper.Raw)
{
int bytesPerPixel = 4;
int stride = columns * bytesPerPixel;
int i = (y * stride) + (x * bytesPerPixel);
actualValue = Color.FromArgb(pPixelData[i + 2], pixelData[i + 1], pixelData[i]);
}
Assert.AreEqual(testValue, actualValue);
}
