// Loads all available entry points for the current API.
// Note: we prefer IGraphicsContextInternal.GetAddress over
// this.GetAddress to improve loading performance (less
// validation necessary.)
internal override void LoadEntryPoints()
{
Debug.Print("Loading entry points for {0}", GetType().FullName);
IGraphicsContext context = GraphicsContext.CurrentContext;
if (context == null)
{
throw new GraphicsContextMissingException();
}
IGraphicsContextInternal context_internal = context as IGraphicsContextInternal;
unsafe
{
fixed(byte *name = _EntryPointNamesInstance)
{
for (int i = 0; i < _EntryPointsInstance.Length; i++)
{
_EntryPointsInstance[i] = context_internal.GetAddress(
new IntPtr(name + _EntryPointNameOffsetsInstance[i]));
}
}
}
}
// Loads all available entry points for the current API.
// Note: we prefer IGraphicsContextInternal.GetAddress over
// this.GetAddress to improve loading performance (less
// validation necessary.)
internal override void LoadEntryPoints()
{
IGraphicsContext context = GraphicsContext.CurrentContext;
if (context == null)
{
throw new GraphicsContextMissingException();
}
IGraphicsContextInternal context_internal = context as IGraphicsContextInternal;
for (int i = 0; i < EntryPointsInstance.Length; i++)
{
EntryPointsInstance[i] = context_internal.GetAddress(EntryPointNamesInstance[i]);
}
}
static void MustGet <T>(IGraphicsContextInternal context, string name, out T result) where T : class
{
IntPtr pointer = context.GetAddress(name);
result = (T)(object)Marshal.GetDelegateForFunctionPointer(pointer, typeof(T));
}