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use smithay::backend::renderer::gles::{GlesPixelProgram, GlesRenderer, UniformName, UniformType};
use super::renderer::NiriRenderer;
pub struct Shaders {
pub gradient_border: Option<GlesPixelProgram>,
}
impl Shaders {
fn compile(renderer: &mut GlesRenderer) -> Self {
let _span = tracy_client::span!("Shaders::compile");
let gradient_border = renderer
.compile_custom_pixel_shader(
include_str!("gradient_border.frag"),
&[
UniformName::new("color_from", UniformType::_4f),
UniformName::new("color_to", UniformType::_4f),
UniformName::new("grad_offset", UniformType::_2f),
UniformName::new("grad_width", UniformType::_1f),
UniformName::new("grad_vec", UniformType::_2f),
],
)
.map_err(|err| {
warn!("error compiling gradient border shader: {err:?}");
})
.ok();
Self { gradient_border }
}
pub fn get(renderer: &mut impl NiriRenderer) -> &Self {
let renderer = renderer.as_gles_renderer();
let data = renderer.egl_context().user_data();
data.get()
.expect("shaders::init() must be called when creating the renderer")
}
}
pub fn init(renderer: &mut GlesRenderer) {
let shaders = Shaders::compile(renderer);
let data = renderer.egl_context().user_data();
if !data.insert_if_missing(|| shaders) {
error!("shaders were already compiled");
}
}
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