From 285f5bec5bb03d4e825e5d866e94008088dd6155 Mon Sep 17 00:00:00 2001
From: xleroy <xleroy@fca1b0fc-160b-0410-b1d3-a4f43f01ea2e>
Date: Sat, 9 Aug 2008 08:06:33 +0000
Subject: Ajout nouveaux tests

git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@708 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
---
 test/raytracer/vector.c | 74 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 74 insertions(+)
 create mode 100644 test/raytracer/vector.c

(limited to 'test/raytracer/vector.c')

diff --git a/test/raytracer/vector.c b/test/raytracer/vector.c
new file mode 100644
index 00000000..226b61a8
--- /dev/null
+++ b/test/raytracer/vector.c
@@ -0,0 +1,74 @@
+#include "config.h"
+#include "point.h"
+#include "vector.h"
+
+flt dotproduct(struct vector * a, struct vector * b)
+{
+  return a->dx * b->dx + a->dy * b->dy + a->dz * b->dz;
+}
+
+void between(struct point * p, struct point * q,
+                           /*out*/ struct vector * v)
+{
+  v->dx = q->x - p->x;
+  v->dy = q->y - p->y;
+  v->dz = q->z - p->z;
+}
+
+void opposite(struct vector * v,
+              /*out*/ struct vector * w)
+{
+  w->dx = - v->dx;
+  w->dy = - v->dy;
+  w->dz = - v->dz;
+}
+
+void point_along(struct point * p, struct vector * v,
+                 flt ac,
+                 /*out*/ struct point * q)
+{
+  q->x = p->x + v->dx * ac;
+  q->y = p->y + v->dy * ac;
+  q->z = p->z + v->dz * ac;
+}
+
+void product(struct vector * a, struct vector * b,
+                           /*out*/ struct vector * v)
+{
+  v->dx = a->dy * b->dz - a->dz * b->dy;
+  v->dy = a->dz * b->dx - a->dx * b->dz;
+  v->dz = a->dx * b->dy - a->dy * b->dx;
+}
+
+flt vlength2(struct vector * a)
+{
+  return a->dx * a->dx + a->dy * a->dy + a->dz * a->dz;
+}
+
+flt vlength(struct vector * a)
+{
+  return sqrt(vlength2(a));
+}
+
+void vscale(struct vector * a, flt s,
+                          /*out*/ struct vector * v)
+{
+  v->dx = a->dx * s;
+  v->dy = a->dy * s;
+  v->dz = a->dz * s;
+}
+
+void vnormalize(struct vector * a, /*out*/ struct vector * v)
+{
+  vscale(a, 1 / vlength(a), v);
+}
+
+void vsub(struct vector * a, struct vector * b,
+                        /*out*/ struct vector * v)
+{
+  v->dx = a->dx - b->dx;
+  v->dy = a->dy - b->dy;
+  v->dz = a->dz - b->dz;
+}
+
+  
-- 
cgit