Resource tracking and destruction

[kvark]

Implements automatic management of the resources. Works just like RAII.

Closes #288, #617

User API changes:

• there is no such thing as factory.delete_something() any more!
• Renderer and Factory accept all handles by reference to avoid cloning
• handles are no longer copyable. That added a bit of noise to the deferred example, but I'm sure we can refactor the interface to solve it.
• Factory works with RawBuffer type natively now instead of Buffer<()>
• need to call device.after_frame() after glfw.swap_buffers()

TODO:

• infrastructure (handle::Manager)
• Buffer and ArrayBuffer
• Shader and Program
• FrameBuffer and Surface
• Texture and Sampler
• update the device (https://github.com/gfx-rs/gfx_device_gl/pull/10)
• cleanup resources at after_free()
• update the macros (gfx-rs/gfx_macros#5)
• update the examples (https://github.com/gfx-rs/gfx_examples/pull/9)
• verify resources to be deleted

[bvssvni]

Nice!

[ghost]

Looks good so far.

[ghost]

can we just use an if? this is a bit to tricky.

let free = !(strong_count(v) > 1 || weak_count(v) > 1);
if free { fun(param, v.deref()); }
!free

[kvark]

sure, will fix in a moment

[ghost]

LGTM, but I would like @bjz or @bvssvni to take a look too.

[bvssvni]

Looks good.

[bvssvni]

Is this still blocked?

[kvark]

No, I forgot to change the issue status. It's all ready.

Regards,
Dzmitry

On Mar 8, 2015, at 6:23, Sven Nilsen notifications@github.com wrote:

Is this still blocked?

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[bvssvni]

Ok, I'll merge!