private void ApplyAlpha(ManagedImage dest, VisualAlphaParam param, float val)
{
ManagedImage src = LoadResourceLayer(param.TGAFile);
if (dest == null || src == null || src.Alpha == null)
{
return;
}
if ((dest.Channels & ManagedImage.ImageChannels.Alpha) == 0)
{
dest.ConvertChannels(ManagedImage.ImageChannels.Alpha | dest.Channels);
}
if (dest.Width != src.Width || dest.Height != src.Height)
{
try { src.ResizeNearestNeighbor(dest.Width, dest.Height); }
catch (Exception) { return; }
}
for (int i = 0; i < dest.Alpha.Length; i++)
{
byte alpha = src.Alpha[i] <= ((1 - val) * 255) ? (byte)0 : (byte)255;
if (alpha != 255)
{
}
if (param.MultiplyBlend)
{
dest.Alpha[i] = (byte)((dest.Alpha[i] * alpha) >> 8);
}
else
{
if (alpha > dest.Alpha[i])
{
dest.Alpha[i] = alpha;
}
}
}
}
private void ApplyAlpha(ManagedImage dest, VisualAlphaParam param, float val)
{
ManagedImage src = LoadResourceLayer(param.TGAFile);
if (dest == null || src == null || src.Alpha == null) return;
if ((dest.Channels & ManagedImage.ImageChannels.Alpha) == 0)
{
dest.ConvertChannels(ManagedImage.ImageChannels.Alpha | dest.Channels);
}
if (dest.Width != src.Width || dest.Height != src.Height)
{
try { src.ResizeNearestNeighbor(dest.Width, dest.Height); }
catch (Exception) { return; }
}
for (int i = 0; i < dest.Alpha.Length; i++)
{
byte alpha = src.Alpha[i] <= ((1 - val) * 255) ? (byte)0 : (byte)255;
if (alpha != 255)
{
}
if (param.MultiplyBlend)
{
dest.Alpha[i] = (byte)((dest.Alpha[i] * alpha) >> 8);
}
else
{
if (alpha > dest.Alpha[i])
{
dest.Alpha[i] = alpha;
}
}
}
}
