Method pass_timestamp_writes

native/shared/src/profiler.rs:193–201

Convenience: build a `RenderPassTimestampWrites` for a pass in one call. Returns None when GPU queries are disabled — the caller should plug the returned `Option` straight into `RenderPassDescriptor.timestamp_writes`.

(&mut self, label: &'static str)

    /// Returns None when GPU queries are disabled — the caller should plug
    /// the returned `Option` straight into `RenderPassDescriptor.timestamp_writes`.
    pub fn pass_timestamp_writes(&mut self, label: &'static str) -> Option<wgpu::RenderPassTimestampWrites<'_>> {
        let (b, e) = self.reserve_gpu_pair(label)?;
        let qs = self.query_set.as_ref()?;
        Some(wgpu::RenderPassTimestampWrites {
            query_set: qs,
            beginning_of_pass_write_index: Some(b),
            end_of_pass_write_index: Some(e),
        })
    }

    /// Same as `pass_timestamp_writes` but for a compute pass descriptor.
    pub fn compute_pass_timestamp_writes(&mut self, label: &'static str) -> Option<wgpu::ComputePassTimestampWrites<'_>> {