Remove remaining implicit shared_ptr<Obj>'s

[richardeakin]

This is the time to do it, since it is breaking, and fairly easy in most cases. From a quick search, the remaining classes using the old implicit shared_ptr design are:

• [x] ci::Serial
• [x] ci::Buffer
• [x] ci::Capture
• ci::MovieWriter windows legacy only, Mac uses newer qtime::AvfWriter that follows create pattern
• ci::qtime::MovieGl only impl that uses it is quicktime legacy, newer AVF impl follows the create pattern
• [x] ci::ip::AdaptiveThreshold
• ci::Font text API will be entierly rewritten, and will be updated then.

2015/4/21 update: decided to hold off on Font for this release, Buffer will move to value semantics similar to Surface.

[pizthewiz]

Awesome, I was wondering about Buffer and Capture just the other day.

[pizthewiz]

Would ci::app::Event, ci::app::MouseEvent and ci::app::KeyEvent also fit?

[richardeakin]

This work has begun in glNext_remove_implicit_shared branch, starting with Serial.

@pizthewiz not exactly sure what you mean, app::Events are designed to be passed with value semantics and don't use shared pointers.

[pizthewiz]

Ahh my confusion, I thought the event types also had an implicit shared pointer internally.

[richardeakin]

Buffer work is in the branch glNext_buffer_value_semantics. Windows and iOS-specific code still needs to be surveyed, I've gone through the usage on Mac and updated where I felt appropriate.