public bool Release()
{
if (State != RendererDataState.Compiled)
{
return(false);
}
Debug.Assert(_shader is not null);
Debug.Assert(_vertexType is not null);
var key = new SourceKey(_shader, _vertexType);
var screen = Engine.GetValidCurrentContext();
CompiledProgramCacheStore.Delete(screen, key, ref _program);
try {
_shader.InvokeOnProgramDisposed();
}
catch {
if (EngineSetting.UserCodeExceptionCatchMode == UserCodeExceptionCatchMode.Throw)
{
throw;
}
// ignore exceptions in user code.
}
Debug.Assert(State != RendererDataState.Compiled);
return(true);
}
private bool CompileIfNeeded()
{
var state = State;
if (state == RendererDataState.Compiled)
{
return(false);
}
Debug.Assert(_shader is not null);
Debug.Assert(_vertexType is not null);
var key = new SourceKey(_shader, _vertexType);
var screen = Engine.GetValidCurrentContext();
_program = CompiledProgramCacheStore.GetCacheOrCompile(screen, key);
return(true);
}
