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extern crate sdl2;
extern crate gfx_core;
extern crate gfx_device_gl;
use gfx_core::handle;
use gfx_core::format::{SurfaceType, DepthStencil, Srgba8};
use gfx_device_gl::Resources;
pub fn init<'a>(builder: &mut sdl2::video::WindowBuilder) ->
(sdl2::video::Window, sdl2::video::GLContext,
gfx_device_gl::Device, gfx_device_gl::Factory,
handle::RenderTargetView<Resources, Srgba8>,
handle::DepthStencilView<Resources, DepthStencil>)
{
use gfx_core::factory::Typed;
use gfx_core::tex::{AaMode, Size};
let window = builder.opengl().build().unwrap();
let context = window.gl_create_context().unwrap();
let (device, factory) = gfx_device_gl::create(|s| {
window.subsystem().gl_get_proc_address(s) as *const std::os::raw::c_void
});
let (width, height) = window.drawable_size();
let dim = (width as Size, height as Size, 1, AaMode::Single);
let (color_view, ds_view) = gfx_device_gl::create_main_targets_raw(
dim, SurfaceType::R8_G8_B8_A8, SurfaceType::D24);
(window, context, device, factory, Typed::new(color_view), Typed::new(ds_view))
}