public IBitmap ApplyArea(IArea area)
{
//todo: performance can be improved by only creating a bitmap the size of the area, and not the entire background.
//This will require to change the rendering as well to offset the location
byte zero = (byte)0;
Bitmap output = Bitmap.CreateBitmap(Width, Height, Bitmap.Config.Argb8888);
using (FastBitmap inBmp = new FastBitmap(_bitmap))
{
using (FastBitmap outBmp = new FastBitmap(output, true))
{
for (int y = 0; y < Height; y++)
{
int bitmapY = Height - y - 1;
for (int x = 0; x < Width; x++)
{
global::Android.Graphics.Color color = inBmp.GetPixel(x, bitmapY);
byte alpha = area.IsInArea(new AGS.API.PointF(x, y)) ? color.A : zero;
outBmp.SetPixel(x, bitmapY, new global::Android.Graphics.Color(color.R, color.G, color.B, alpha));
}
}
}
}
return(new AndroidBitmap(output, _graphics));
}
public IBitmap ApplyArea(IArea area)
{
//todo: performance can be improved by only creating a bitmap the size of the area, and not the entire background.
//This will require to change the rendering as well to offset the location
byte zero = (byte)0;
Bitmap output = Bitmap.CreateBitmap(Width, Height, Bitmap.Config.Argb8888);
using (FastBitmap inBmp = new FastBitmap (_bitmap))
{
using (FastBitmap outBmp = new FastBitmap (output, true))
{
for (int y = 0; y < Height; y++)
{
int bitmapY = Height - y - 1;
for (int x = 0; x < Width; x++)
{
global::Android.Graphics.Color color = inBmp.GetPixel(x, bitmapY);
byte alpha = area.IsInArea(new AGS.API.PointF(x, y)) ? color.A : zero;
outBmp.SetPixel(x, bitmapY, new global::Android.Graphics.Color(color.R, color.G, color.B, alpha));
}
}
}
}
return new AndroidBitmap(output, _graphics);
}
public void SetPixels(AGS.API.Color color, List <API.Point> points)
{
using (FastBitmap bmp = new FastBitmap(_bitmap))
{
foreach (var point in points)
{
bmp.SetPixel(point.X, point.Y, color.Convert());
}
}
}
public void MakeTransparent(AGS.API.Color color)
{
global::Android.Graphics.Color c = new global::Android.Graphics.Color(color.R, color.G, color.B, color.A);
global::Android.Graphics.Color transparent = global::Android.Graphics.Color.Transparent;
using (FastBitmap fastBitmap = new FastBitmap (_bitmap))
{
for (int x = 0; x < _bitmap.Width; x++)
{
for (int y = 0; y < _bitmap.Height; y++)
{
if (fastBitmap.GetPixel(x, y) == c)
fastBitmap.SetPixel(x, y, c);
}
}
}
}
public void MakeTransparent(AGS.API.Color color)
{
global::Android.Graphics.Color c = new global::Android.Graphics.Color(color.R, color.G, color.B, color.A);
global::Android.Graphics.Color transparent = global::Android.Graphics.Color.Transparent;
using (FastBitmap fastBitmap = new FastBitmap(_bitmap))
{
for (int x = 0; x < Width; x++)
{
for (int y = 0; y < Height; y++)
{
if (fastBitmap.GetPixel(x, y) == c)
{
fastBitmap.SetPixel(x, y, transparent);
}
}
}
}
}