TextureView CreateSampleTexture()
{
// Non-mipmapped.
TypelessTexture2D texture = new TypelessTexture2D(Usage.Default,
TextureUsage.Texture, CPUAccess.None, PixelFormat.Parse("R.UN8 G.UN8 B.UN8 A.UN8"),
512, 512, 1, GraphicsLocality.DeviceOrSystemMemory, null);
// We create data.
byte[] data = texture.Map(MapOptions.Write, 0).Data;
for (int x = 0; x < 512; x++)
{
for (int y = 0; y < 512; y++)
{
int idx = (y * 512 + x) * 4;
data[idx] = (byte)((x * 256) / 512);
data[idx + 1] = (byte)((y * 256) / 512);
data[idx + 2] = (byte)(((x + y) * 256) / 1024);
data[idx + 3] = 100; // Semi-Transparent
}
}
texture.UnMap(0);
texture.DisposeOnViewDispose = true;
return(texture.CreateTexture());
}
public override Mipmap Map(MapOptions op, uint mipmap, uint face, bool uncompress)
{
Monitor.Enter(syncRoot);
try
{
AssertNotDisposed();
return(texture.Map(op, mipmap, face, uncompress));
}
catch (Exception)
{
Monitor.Exit(syncRoot);
throw;
}
}
public override Mipmap Map(MapOptions op, uint mipmap, uint face, bool uncompress)
{
Monitor.Enter(syncRoot);
try
{
AssertNotDisposed();
// We map the mipmap (no need to lock).
return(texture2D.Map(op, mostDetailedMipmap + mipmap, face, uncompress));
}
catch (Exception)
{
Monitor.Exit(syncRoot);
throw;
}
}
