Use pointers to State structures.

[azul3d-bot]

Issue by slimsag Sunday Dec 28, 2014 at 20:58 GMT Originally opened as https://github.com/azul3d/gfx/issues/83

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As of right now State is a ~140 byte structure. Most gfx.Object will utilize the same state (as it lowers the number of state changes).

If we turn Object.State into a pointer instead of a value -- we get the following benefits:

• Less memory usage.
• Faster state guarding (i.e. checking if two objects have the same exact state is a simple pointer comparison).
• Reuse of gfx.State object's using a sync.Pool

We would turn gfx.State into more traditional objects:

• gfx.DefaultState would be replaced by gfx.NewState()
• State.Destroy() would put the object back in the sync.Pool.
• Methods (State.Compare) would become pointer receivers.
• A new State.Copy method.

Overall I think this will be a big plus.

[azul3d-bot]

Fixed/merged as part of https://github.com/azul3d/engine/issues/1