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use crate::{
DynDevice, DynFence, DynResource, DynSurfaceTexture, Surface, SurfaceConfiguration,
SurfaceError,
};
use super::DynResourceExt as _;
#[derive(Debug)]
pub struct DynAcquiredSurfaceTexture {
pub texture: Box<dyn DynSurfaceTexture>,
/// The presentation configuration no longer matches
/// the surface properties exactly, but can still be used to present
/// to the surface successfully.
pub suboptimal: bool,
}
pub trait DynSurface: DynResource {
unsafe fn configure(
&self,
device: &dyn DynDevice,
config: &SurfaceConfiguration,
) -> Result<(), SurfaceError>;
unsafe fn unconfigure(&self, device: &dyn DynDevice);
unsafe fn acquire_texture(
&self,
timeout: Option<std::time::Duration>,
fence: &dyn DynFence,
) -> Result<Option<DynAcquiredSurfaceTexture>, SurfaceError>;
unsafe fn discard_texture(&self, texture: Box<dyn DynSurfaceTexture>);
}
impl<S: Surface + DynResource> DynSurface for S {
unsafe fn configure(
&self,
device: &dyn DynDevice,
config: &SurfaceConfiguration,
) -> Result<(), SurfaceError> {
let device = device.expect_downcast_ref();
unsafe { S::configure(self, device, config) }
}
unsafe fn unconfigure(&self, device: &dyn DynDevice) {
let device = device.expect_downcast_ref();
unsafe { S::unconfigure(self, device) }
}
unsafe fn acquire_texture(
&self,
timeout: Option<std::time::Duration>,
fence: &dyn DynFence,
) -> Result<Option<DynAcquiredSurfaceTexture>, SurfaceError> {
let fence = fence.expect_downcast_ref();
unsafe { S::acquire_texture(self, timeout, fence) }.map(|acquired| {
acquired.map(|ast| {
let texture = Box::new(ast.texture);
let suboptimal = ast.suboptimal;
DynAcquiredSurfaceTexture {
texture,
suboptimal,
}
})
})
}
unsafe fn discard_texture(&self, texture: Box<dyn DynSurfaceTexture>) {
unsafe { S::discard_texture(self, texture.unbox()) }
}
}