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use crate::{
context::{self, Context, ContextData},
null_check, null_unwrap,
program::{Program, ProgramData},
variable::{Variable, VariableData},
MaybeWeakRefMut, OptixCell, OptixObjectData, TypeTag,
};
use optix_types::*;
use rustc_hash::FxHashMap;
use std::{
ffi::{CStr, CString},
ptr,
rc::{Rc, Weak},
};
pub(crate) type Geometry = *const OptixCell<GeometryData>;
pub(crate) struct GeometryData {
pub(crate) context: Weak<OptixCell<ContextData>>,
pub(crate) program_intersection: Option<Weak<OptixCell<ProgramData>>>,
pub(crate) program_bounding_box: Option<Weak<OptixCell<ProgramData>>>,
pub(crate) variables: FxHashMap<CString, Rc<OptixCell<VariableData>>>,
pub(crate) primitive_count: u32,
}
impl GeometryData {
fn new(_context: Weak<OptixCell<ContextData>>, _: &mut ContextData) -> Self {
Self {
context: _context,
program_intersection: None,
program_bounding_box: None,
variables: FxHashMap::default(),
primitive_count: 0,
}
}
fn register(this: Rc<OptixCell<Self>>, context: &mut ContextData) {
context.geometry.insert(this);
}
unsafe fn create(context: Context) -> Result<Geometry, RTresult> {
context::create_subobject(context, Self::new, Self::register)
}
}
impl OptixObjectData for GeometryData {
const TYPE: TypeTag = TypeTag::Geometry;
fn deregister(&mut self, this: &Rc<OptixCell<Self>>) -> Result<(), RTresult> {
if let Some(context) = self.context.upgrade() {
let mut context = (*context).borrow_mut()?;
context.geometry.remove(this);
}
Ok(())
}
fn context<'a>(&'a mut self) -> crate::MaybeWeakRefMut<'a, ContextData> {
MaybeWeakRefMut::Weak(&self.context)
}
}
pub(crate) unsafe fn create(context: Context, geometry: *mut Geometry) -> Result<(), RTresult> {
null_check(context)?;
null_check(geometry)?;
*geometry = GeometryData::create(context)?;
Ok(())
}
pub(crate) unsafe fn set_primitive_count(
geometry: Geometry,
primitive_count: u32,
) -> Result<(), RTresult> {
let geometry = null_unwrap(geometry)?;
let mut geometry = geometry.borrow_mut()?;
geometry.primitive_count = primitive_count;
Ok(())
}
pub(crate) unsafe fn set_bounding_box_program(
geometry: Geometry,
program: Program,
) -> Result<(), RTresult> {
null_check(program)?;
let geometry = null_unwrap(geometry)?;
let mut geometry = geometry.borrow_mut()?;
geometry.program_bounding_box = Some(OptixCell::clone_weak(program));
Ok(())
}
pub(crate) unsafe fn set_intersection_program(
geometry: Geometry,
program: Program,
) -> Result<(), RTresult> {
null_check(program)?;
let geometry = null_unwrap(geometry)?;
let mut geometry = geometry.borrow_mut()?;
geometry.program_intersection = Some(OptixCell::clone_weak(program));
Ok(())
}
pub(crate) unsafe fn declare_variable(
geometry: Geometry,
name: *const i8,
v: *mut Variable,
) -> Result<(), RTresult> {
null_check(v)?;
let instance = null_unwrap(geometry)?;
let mut material = instance.borrow_mut()?;
let variable = VariableData::new(&mut *material)?;
let name = CStr::from_ptr(name).to_owned();
let result = Rc::as_ptr(&variable);
material.variables.insert(name, variable);
*v = result;
Ok(())
}
pub(crate) unsafe fn query_variable(
geometry: Geometry,
name: *const i8,
v: *mut Variable,
) -> Result<(), RTresult> {
null_check(name)?;
null_check(v)?;
let geometry = null_unwrap(geometry)?;
let geometry = (geometry).borrow()?;
*v = geometry
.variables
.get(CStr::from_ptr(name))
.map(|variable| Rc::as_ptr(variable))
.unwrap_or(ptr::null_mut());
Ok(())
}
pub(crate) fn destroy(_geometry: Geometry) -> Result<(), RTresult> {
// TODO: implement
Ok(())
}
pub(crate) unsafe fn get_context(
geometry: *const OptixCell<GeometryData>,
context: *mut *const OptixCell<ContextData>,
) -> Result<(), RTresult> {
let geometry = null_unwrap(geometry)?;
let geometry = geometry.borrow()?;
*context = geometry.context.as_ptr();
Ok(())
}
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