func (c *graphicsContext) needsRestoring(context *opengl.Context) (bool, error) {
// FlushCommands is required because c.offscreen.impl might not have an actual texture.
if err := graphics.FlushCommands(context); err != nil {
return false, err
}
return c.offscreen.impl.isInvalidated(context), nil
}
func (c *graphicsContext) drawToDefaultRenderTarget(context *opengl.Context) error {
if err := c.screen.Clear(); err != nil {
return err
}
if err := drawWithFittingScale(c.screen, c.offscreen2); err != nil {
return err
}
if err := graphics.FlushCommands(context); err != nil {
return err
}
return nil
}