From 3c85a6ac41397cf95199933c6a93909bc070a844 Mon Sep 17 00:00:00 2001
From: Sébastien Crozet <developer@crozet.re>
Date: Tue, 8 Sep 2020 21:18:17 +0200
Subject: Start implementing ray-casting.

This adds a QueryPipeline structure responsible for scene queries.
Currently this structure is able to perform a brute-force ray-cast.
This commit also includes the beginning of implementation of a SIMD-based acceleration structure which will be used for these scene queries in the future.
---
 src/lib.rs | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

(limited to 'src/lib.rs')

diff --git a/src/lib.rs b/src/lib.rs
index 118ac23..8cbf673 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -44,7 +44,6 @@ macro_rules! enable_flush_to_zero(
     }
 );
 
-#[cfg(feature = "simd-is-enabled")]
 macro_rules! array(
     ($callback: expr; SIMD_WIDTH) => {
         {
@@ -139,7 +138,6 @@ pub mod utils;
 #[cfg(feature = "dim2")]
 /// Math primitives used throughout Rapier.
 pub mod math {
-    #[cfg(feature = "simd-is-enabled")]
     pub use super::simd::*;
     use na::{Isometry2, Matrix2, Point2, Translation2, UnitComplex, Vector2, Vector3, U1, U2};
 
@@ -182,7 +180,6 @@ pub mod math {
 #[cfg(feature = "dim3")]
 /// Math primitives used throughout Rapier.
 pub mod math {
-    #[cfg(feature = "simd-is-enabled")]
     pub use super::simd::*;
     use na::{Isometry3, Matrix3, Point3, Translation3, UnitQuaternion, Vector3, Vector6, U3};
 
@@ -220,6 +217,12 @@ pub mod math {
     pub type SdpMatrix<N> = crate::utils::SdpMatrix3<N>;
 }
 
+#[cfg(not(feature = "simd-is-enabled"))]
+mod simd {
+    /// The number of lanes of a SIMD number.
+    pub const SIMD_WIDTH: usize = 4;
+}
+
 #[cfg(feature = "simd-is-enabled")]
 mod simd {
     #[allow(unused_imports)]
-- 
cgit 


From 84bd60e4a5b88c9aa824797c8a444945b46e96b2 Mon Sep 17 00:00:00 2001
From: Crozet Sébastien <developer@crozet.re>
Date: Tue, 22 Sep 2020 17:57:29 +0200
Subject: Fix compilation when SIMD is not enabled.

---
 src/lib.rs | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

(limited to 'src/lib.rs')

diff --git a/src/lib.rs b/src/lib.rs
index 8cbf673..3674717 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -219,8 +219,15 @@ pub mod math {
 
 #[cfg(not(feature = "simd-is-enabled"))]
 mod simd {
+    use simba::simd::{AutoBoolx4, AutoF32x4};
     /// The number of lanes of a SIMD number.
     pub const SIMD_WIDTH: usize = 4;
+    /// SIMD_WIDTH - 1
+    pub const SIMD_LAST_INDEX: usize = 3;
+    /// A SIMD float with SIMD_WIDTH lanes.
+    pub type SimdFloat = AutoF32x4;
+    /// A SIMD bool with SIMD_WIDTH lanes.
+    pub type SimdBool = AutoBoolx4;
 }
 
 #[cfg(feature = "simd-is-enabled")]
@@ -236,16 +243,16 @@ mod simd {
     /// SIMD_WIDTH - 1
     pub const SIMD_LAST_INDEX: usize = 3;
     #[cfg(not(feature = "simd-nightly"))]
-    /// A SIMD float with SIMD_WIDTH lanes.
+    /// A SIMD float with SIMD_WIDTH lanes.
     pub type SimdFloat = WideF32x4;
     #[cfg(not(feature = "simd-nightly"))]
-    /// A SIMD bool with SIMD_WIDTH lanes.
+    /// A SIMD bool with SIMD_WIDTH lanes.
     pub type SimdBool = WideBoolF32x4;
     #[cfg(feature = "simd-nightly")]
-    /// A SIMD float with SIMD_WIDTH lanes.
+    /// A SIMD float with SIMD_WIDTH lanes.
     pub type SimdFloat = f32x4;
     #[cfg(feature = "simd-nightly")]
-    /// A bool float with SIMD_WIDTH lanes.
+    /// A bool float with SIMD_WIDTH lanes.
     pub type SimdBool = m32x4;
 
     // pub const SIMD_WIDTH: usize = 8;
-- 
cgit