private static void UpdateRect(msurface_t fa, ref glRect_t theRect)
{
if (fa.light_t < theRect.t)
{
if (theRect.h != 0)
{
theRect.h += (byte)(theRect.t - fa.light_t);
}
theRect.t = (byte)fa.light_t;
}
if (fa.light_s < theRect.l)
{
if (theRect.w != 0)
{
theRect.w += (byte)(theRect.l - fa.light_s);
}
theRect.l = (byte)fa.light_s;
}
int smax = (fa.extents[0] >> 4) + 1;
int tmax = (fa.extents[1] >> 4) + 1;
if ((theRect.w + theRect.l) < (fa.light_s + smax))
{
theRect.w = (byte)((fa.light_s - theRect.l) + smax);
}
if ((theRect.h + theRect.t) < (fa.light_t + tmax))
{
theRect.h = (byte)((fa.light_t - theRect.t) + tmax);
}
}
private static void CommitLightmap(int i)
{
_LightMapModified[i] = false;
glRect_t theRect = _LightMapRectChange[i];
GCHandle handle = GCHandle.Alloc(_LightMaps, GCHandleType.Pinned);
try
{
long addr = handle.AddrOfPinnedObject().ToInt64() +
(i * BLOCK_HEIGHT + theRect.t) * BLOCK_WIDTH * _LightMapBytes;
GL.TexSubImage2D(TextureTarget.Texture2D, 0, 0, theRect.t,
BLOCK_WIDTH, theRect.h, Drawer.LightMapFormat,
PixelType.UnsignedByte, new IntPtr(addr));
}
finally
{
handle.Free();
}
theRect.l = BLOCK_WIDTH;
theRect.t = BLOCK_HEIGHT;
theRect.h = 0;
theRect.w = 0;
_LightMapRectChange[i] = theRect;
}