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metal 0.23.1

Rust bindings for Metal
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// Copyright 2016 GFX developers
//
// Licensed under the Apache License, Version 2.0, <LICENSE-APACHE or
// http://apache.org/licenses/LICENSE-2.0> or the MIT license <LICENSE-MIT or
// http://opensource.org/licenses/MIT>, at your option. This file may not be
// copied, modified, or distributed except according to those terms.

use super::NSUInteger;
use std::default::Default;

#[repr(C)]
#[derive(Copy, Clone, Debug, Eq, PartialEq, Hash, Default)]
pub struct MTLOrigin {
    pub x: NSUInteger,
    pub y: NSUInteger,
    pub z: NSUInteger,
}

#[repr(C)]
#[derive(Copy, Clone, Debug, Eq, PartialEq, Hash, Default)]
pub struct MTLSize {
    pub width: NSUInteger,
    pub height: NSUInteger,
    pub depth: NSUInteger,
}

impl MTLSize {
    pub fn new(width: NSUInteger, height: NSUInteger, depth: NSUInteger) -> Self {
        Self {
            width,
            height,
            depth,
        }
    }
}

#[repr(C)]
#[derive(Copy, Clone, Debug, Eq, PartialEq, Hash, Default)]
pub struct MTLRegion {
    pub origin: MTLOrigin,
    pub size: MTLSize,
}

impl MTLRegion {
    #[inline]
    pub fn new_1d(x: NSUInteger, width: NSUInteger) -> Self {
        Self::new_2d(x, 0, width, 1)
    }

    #[inline]
    pub fn new_2d(x: NSUInteger, y: NSUInteger, width: NSUInteger, height: NSUInteger) -> Self {
        Self::new_3d(x, y, 0, width, height, 1)
    }

    #[inline]
    pub fn new_3d(
        x: NSUInteger,
        y: NSUInteger,
        z: NSUInteger,
        width: NSUInteger,
        height: NSUInteger,
        depth: NSUInteger,
    ) -> Self {
        Self {
            origin: MTLOrigin { x, y, z },
            size: MTLSize {
                width,
                height,
                depth,
            },
        }
    }
}

#[repr(C)]
#[derive(Copy, Clone, Debug, PartialEq, Default)]
pub struct MTLSamplePosition {
    pub x: f32,
    pub y: f32,
}