static SolidBrush GetBrush (Color color)
{
var cache = Platform.Instance.Cache<BrushKey, SolidBrush>(cacheKey);
SolidBrush brush;
lock (cache) {
var key = new BrushKey (color.ToArgb ());
if (!cache.TryGetValue (key, out brush)) {
brush = new SolidBrush (color);
cache.Add (key, brush);
}
}
return brush;
}
static Brush GetBrush (Color color, Generator generator)
{
var cache = generator.Cache<BrushKey, Brush>(cacheKey);
Brush brush;
lock (cache) {
var key = new BrushKey (color.ToArgb ());
if (!cache.TryGetValue (key, out brush)) {
brush = new SolidBrush (color, generator);
cache.Add (key, brush);
}
}
return brush;
}
static Pen GetPen (Generator generator, Color color, float thickness = 1f, DashStyle dashStyle = null)
{
var cache = generator.Cache<PenKey, Pen> (cacheKey);
Pen pen;
lock (cache) {
var key = new PenKey (color.ToArgb (), thickness, dashStyle);
if (!cache.TryGetValue (key, out pen)) {
pen = new Pen (color, thickness, generator);
if (dashStyle != null) pen.DashStyle = dashStyle;
cache.Add (key, pen);
}
}
return pen;
}
/// <summary>
/// Sets the pixel color at the specified coordinates.
/// </summary>
/// <param name="x">The x coordinate of the pixel to set.</param>
/// <param name="y">The y coordinate of the pixel to set.</param>
/// <param name="color">Color to set the pixel to.</param>
public unsafe override void SetPixel(int x, int y, Color color)
{
var pos = (byte*)Data;
pos += x * BytesPerPixel + y * ScanWidth;
var col = TranslateArgbToData(color.ToArgb());
if (BytesPerPixel == 4)
{
*((int*)pos) = col;
}
else if (BytesPerPixel == 3)
{
*(pos++) = (byte)(col & 0xFF);
*(pos++) = (byte)((col >> 8) & 0xFF);
*(pos++) = (byte)((col >> 16) & 0xFF);
}
else
throw new NotSupportedException(string.Format(CultureInfo.CurrentCulture, "This PixelFormat is not supported by SetPixel. Must be 3 or 4 bytes per pixel"));
}
