private unsafe void Create(IntPtr sdlsurface)
{
Sdl.Surface *surface = (Sdl.Surface *)sdlsurface;
uint width = NextPowerOfTwo((uint)surface->w);
uint height = NextPowerOfTwo((uint)surface->h);
IntPtr pixelbufferp;
if (BitConverter.IsLittleEndian)
{
pixelbufferp = SDL.CreateRGBSurface(SDL.SWSURFACE,
(int)width, (int)height, 32,
0x000000ff, 0x0000ff00, 0x00ff0000, 0xff000000);
}
else
{
pixelbufferp = SDL.CreateRGBSurface(SDL.SWSURFACE,
(int)width, (int)height, 32,
0xff000000, 0x00ff0000, 0x0000ff00, 0x000000ff);
}
if (pixelbufferp == IntPtr.Zero)
{
throw new Exception("Couldn't create surface texture (out of memory?)");
}
try {
SDL.SetAlpha(sdlsurface, 0, 0);
SDL.BlitSurface(sdlsurface, IntPtr.Zero, pixelbufferp, IntPtr.Zero);
CreateFromSurface(pixelbufferp, gl.RGBA);
} finally {
SDL.FreeSurface(pixelbufferp);
}
ImageWidth = (float)surface->w;
ImageHeight = (float)surface->h;
}
