Merge various small changes from render branch:

* Division by zero fix for TNT SVD code.
* Sound fix, in case ffmpeg decode fails, don't use the samples.
* Fix for incorrect bounds of transformed objects in new raytracing code.
* Gave memory arena's a name used for allocations for easier memory
  usage debugging.
* Dupligroup no_draw option was using layers but not restrict view/render
  setting. (not a bugfix exactly but would do display list context switching
  while drawing for no reason).
* Fix objects instanced on hair particles not giving consistent results
  when the object is transformed.
* New math functions: madd_v4_v4fl, len_squared_v3v3, interp_v4_v4v4v4,
  mul_v4_m4v4, SH and form factor functions, box_minmax_bounds_m4.
* mul_m4_m4m4 and mul_m3_m3m3 now accept the same pointers for multiple
  arguments.
* endjob callback for WM jobs system.
* Geometry node uv/color layer now has search list/autocomplete.
* Various small buildsystem tweaks, not strictly needed yet in trunk.

1 files changed, 22 insertions, 0 deletions

diff --git a/source/blender/blenlib/intern/math_vector_inline.c b/source/blender/blenlib/intern/math_vector_inline.c
index f82daaa8af6..974832051af 100644
--- a/source/blender/blenlib/intern/math_vector_inline.c
+++ b/source/blender/blenlib/intern/math_vector_inline.c
@@ -188,6 +188,12 @@ MINLINE void mul_v3_v3(float r[3], const float a[3])
 	r[2] *= a[2];
 }
 
+MINLINE void madd_v2_v2fl(float r[2], const float a[2], float f)
+{
+	r[0] += a[0]*f;
+	r[1] += a[1]*f;
+}
+
 MINLINE void madd_v3_v3fl(float r[3], const float a[3], float f)
 {
 	r[0] += a[0]*f;
@@ -222,6 +228,14 @@ MINLINE void madd_v3_v3v3v3(float r[3], const float a[3], const float b[3], cons
 	r[2] = a[2] + b[2]*c[2];
 }
 
+MINLINE void madd_v4_v4fl(float r[4], const float a[4], float f)
+{
+	r[0] += a[0]*f;
+	r[1] += a[1]*f;
+	r[2] += a[2]*f;
+	r[3] += a[3]*f;
+}
+
 MINLINE void mul_v3_v3v3(float *v, const float *v1, const float *v2)
 {
 	v[0] = v1[0] * v2[0];
@@ -305,6 +319,14 @@ MINLINE float len_v3v3(const float a[3], const float b[3])
 	return len_v3(d);
 }
 
+MINLINE float len_squared_v3v3(const float a[3], const float b[3])
+{
+	float d[3];
+
+	sub_v3_v3v3(d, b, a);
+	return dot_v3v3(d, d);
+}
+
 MINLINE float normalize_v2_v2(float r[2], const float a[2])
 {
 	float d= dot_v2v2(a, a);