public unsafe void SavePng(string file)
{
var OutputTexture = new TexHandle();
OutputTexture.Width = (uint)Width;
OutputTexture.Height = (uint)Height;
OutputTexture.Data = Marshal.AllocHGlobal(Width * Height * 4);
uint *data = (uint *)OutputTexture.Data.ToPointer();
for (int i = 0; i < Bitmaps.Count; ++i)
{
var bitmap = Bitmaps[i];
uint *src = (uint *)bitmap.Data;
if (Points[i].dupID < 0)
{
if (Points[i].rot)
{
int r = bitmap.Height - 1;
for (int y = 0; y < bitmap.Width; ++y)
{
for (int x = 0; x < bitmap.Height; ++x)
{
data[(Points[i].y + y) * Width + (Points[i].x + x)] = src[((r - x) * bitmap.Width) + y];
}
}
}
else
{
for (int y = 0; y < bitmap.Height; ++y)
{
for (int x = 0; x < bitmap.Width; ++x)
{
data[(Points[i].y + y) * Width + (Points[i].x + x)] = src[(y * bitmap.Width) + x];
}
}
}
}
}
TextureLoadUtil.OutTexture(file, ref OutputTexture);
}