David Adam : d3drm: Implement D3DRMVectorRandom.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: f9e6f42b8607dcc126bf24eca76e250faa15b25f
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=f9e6f42b8607dcc126bf24eca76e250faa15b25f

Author: David Adam <David.Adam at math.cnrs.fr>
Date:   Thu Apr 19 21:11:02 2007 +0200

d3drm: Implement D3DRMVectorRandom.

---

 dlls/d3drm/d3drm.spec |    2 +-
 dlls/d3drm/math.c     |   10 ++++++++++
 2 files changed, 11 insertions(+), 1 deletions(-)

diff --git a/dlls/d3drm/d3drm.spec b/dlls/d3drm/d3drm.spec
index 172f07e..5af714e 100644
--- a/dlls/d3drm/d3drm.spec
+++ b/dlls/d3drm/d3drm.spec
@@ -13,7 +13,7 @@
 @ stdcall D3DRMVectorDotProduct(ptr ptr)
 @ stdcall D3DRMVectorModulus(ptr)
 @ stdcall D3DRMVectorNormalize(ptr)
-@ stub D3DRMVectorRandom
+@ stdcall D3DRMVectorRandom(ptr)
 @ stub D3DRMVectorReflect
 @ stub D3DRMVectorRotate
 @ stdcall D3DRMVectorScale(ptr ptr long)
diff --git a/dlls/d3drm/math.c b/dlls/d3drm/math.c
index 8ab947a..670a89b 100644
--- a/dlls/d3drm/math.c
+++ b/dlls/d3drm/math.c
@@ -92,6 +92,16 @@ LPD3DVECTOR WINAPI D3DRMVectorNormalize(LPD3DVECTOR u)
     return u;
 }
 
+/* Returns a random unit vector */
+LPD3DVECTOR WINAPI D3DRMVectorRandom(LPD3DVECTOR d)
+{
+    d->x = rand();
+    d->y = rand();
+    d->z = rand();
+    D3DRMVectorNormalize(d);
+    return d;
+}
+
 /* Scale a vector */
 LPD3DVECTOR WINAPI D3DRMVectorScale(LPD3DVECTOR d, LPD3DVECTOR s, D3DVALUE factor)
 {