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use std::path::Path;
use gfx::handle as h;
use mint;
use render::BackendResources;
use util;
pub use gfx::texture::{FilterMethod, WrapMode};
#[derive(Clone, Debug, PartialEq, Eq, Hash)]
pub struct Sampler(pub h::Sampler<BackendResources>);
#[derive(Derivative)]
#[derivative(Clone, Debug, PartialEq, Eq(bound = "T: PartialEq"), Hash(bound = ""))]
pub struct Texture<T> {
view: h::ShaderResourceView<BackendResources, T>,
sampler: h::Sampler<BackendResources>,
total_size: [u32; 2],
#[derivative(Hash(hash_with = "util::hash_f32_slice"))] tex0: [f32; 2],
#[derivative(Hash(hash_with = "util::hash_f32_slice"))] tex1: [f32; 2],
}
impl<T> Texture<T> {
pub(crate) fn new(
view: h::ShaderResourceView<BackendResources, T>,
sampler: h::Sampler<BackendResources>,
total_size: [u32; 2],
) -> Self {
Texture {
view,
sampler,
total_size,
tex0: [0.0; 2],
tex1: [total_size[0] as f32, total_size[1] as f32],
}
}
pub(crate) fn to_param(
&self,
) -> (
h::ShaderResourceView<BackendResources, T>,
h::Sampler<BackendResources>,
) {
(self.view.clone(), self.sampler.clone())
}
pub fn set_texel_range(
&mut self,
base: mint::Point2<i16>,
size: mint::Vector2<u16>,
) {
self.tex0 = [
base.x as f32,
self.total_size[1] as f32 - base.y as f32 - size.y as f32,
];
self.tex1 = [
base.x as f32 + size.x as f32,
self.total_size[1] as f32 - base.y as f32,
];
}
pub fn uv_range(&self) -> [f32; 4] {
[
self.tex0[0] / self.total_size[0] as f32,
self.tex0[1] / self.total_size[1] as f32,
self.tex1[0] / self.total_size[0] as f32,
self.tex1[1] / self.total_size[1] as f32,
]
}
}
#[derive(Clone, Debug)]
pub struct CubeMapPath<P: AsRef<Path>> {
pub front: P,
pub back: P,
pub left: P,
pub right: P,
pub up: P,
pub down: P,
}
impl<P: AsRef<Path>> CubeMapPath<P> {
pub(crate) fn as_array(&self) -> [&P; 6] {
[
&self.right,
&self.left,
&self.up,
&self.down,
&self.front,
&self.back,
]
}
}
#[derive(Clone, Debug, PartialEq, Eq, Hash)]
pub struct CubeMap<T> {
view: h::ShaderResourceView<BackendResources, T>,
sampler: h::Sampler<BackendResources>,
}
impl<T> CubeMap<T> {
pub(crate) fn new(
view: h::ShaderResourceView<BackendResources, T>,
sampler: h::Sampler<BackendResources>,
) -> Self {
CubeMap { view, sampler }
}
pub(crate) fn to_param(
&self,
) -> (
h::ShaderResourceView<BackendResources, T>,
h::Sampler<BackendResources>,
) {
(self.view.clone(), self.sampler.clone())
}
}