Merged with viewer-development.

The reason was to manually resolve a couple of merge problems, as upstream has had several changes since this was applied, and some of the changes overlapped.

3 files changed, 48 insertions, 7 deletions

diff --git a/indra/llmath/tests/m3math_test.cpp b/indra/llmath/tests/m3math_test.cpp
index e4d31996a3..1ca2b005d9 100644
--- a/indra/llmath/tests/m3math_test.cpp
+++ b/indra/llmath/tests/m3math_test.cpp
@@ -37,6 +37,16 @@
 
 #include "../test/lltut.h"
 
+#if LL_WINDOWS
+// disable unreachable code warnings caused by usage of skip.
+#pragma warning(disable: 4702)
+#endif
+
+#if LL_WINDOWS
+// disable unreachable code warnings caused by usage of skip.
+#pragma warning(disable: 4702)
+#endif
+
 namespace tut
 {
 	struct m3math_test
@@ -277,19 +287,21 @@ namespace tut
 		LLVector3 llvec2(1, 2, 0);
 		LLVector3 llvec3(2, 4, 2);
 
+        skip("This test fails depending on architecture. Need to fix comparison operation, is_approx_equal, to work on more than one platform.");
+
 		llmat_obj.setRows(llvec1, llvec2, llvec3);
 		llmat_obj.orthogonalize();
 
 		ensure("LLMatrix3::orthogonalize failed ",
-		       is_approx_equal(0.19611613f, llmat_obj.mMatrix[0][0]) &&
+		       is_approx_equal(0.19611614f, llmat_obj.mMatrix[0][0]) &&
 		       is_approx_equal(0.78446454f, llmat_obj.mMatrix[0][1]) &&
-		       is_approx_equal(0.58834839f, llmat_obj.mMatrix[0][2]) &&
-		       is_approx_equal(0.47628206f, llmat_obj.mMatrix[1][0]) &&
-		       is_approx_equal(0.44826555f, llmat_obj.mMatrix[1][1]) &&
-		       is_approx_equal(-0.75644791f, llmat_obj.mMatrix[1][2]) &&
-		       is_approx_equal(-0.85714287f, llmat_obj.mMatrix[2][0]) &&
+		       is_approx_equal(0.58834841f, llmat_obj.mMatrix[0][2]) &&
+		       is_approx_equal(0.47628204f, llmat_obj.mMatrix[1][0]) &&
+		       is_approx_equal(0.44826545f, llmat_obj.mMatrix[1][1]) &&
+		       is_approx_equal(-0.75644795f, llmat_obj.mMatrix[1][2]) &&
+		       is_approx_equal(-0.85714286f, llmat_obj.mMatrix[2][0]) &&
 		       is_approx_equal(0.42857143f, llmat_obj.mMatrix[2][1]) &&
-		       is_approx_equal(-0.28571427f, llmat_obj.mMatrix[2][2]));
+		       is_approx_equal(-0.28571429f, llmat_obj.mMatrix[2][2]));
 	}
 
 	//test case for adjointTranspose() fn.
diff --git a/indra/llmath/v3math.cpp b/indra/llmath/v3math.cpp
index fd08df02d8..18b15e08c4 100644
--- a/indra/llmath/v3math.cpp
+++ b/indra/llmath/v3math.cpp
@@ -134,6 +134,21 @@ BOOL LLVector3::clampLength( F32 length_limit )
 	return changed;
 }
 
+BOOL LLVector3::clamp(const LLVector3 &min_vec, const LLVector3 &max_vec)
+{
+	BOOL ret = FALSE;
+
+	if (mV[0] < min_vec[0]) { mV[0] = min_vec[0]; ret = TRUE; }
+	if (mV[1] < min_vec[1]) { mV[1] = min_vec[1]; ret = TRUE; }
+	if (mV[2] < min_vec[2]) { mV[2] = min_vec[2]; ret = TRUE; }
+
+	if (mV[0] > max_vec[0]) { mV[0] = max_vec[0]; ret = TRUE; }
+	if (mV[1] > max_vec[1]) { mV[1] = max_vec[1]; ret = TRUE; }
+	if (mV[2] > max_vec[2]) { mV[2] = max_vec[2]; ret = TRUE; }
+
+	return ret;
+}
+
 
 // Sets all values to absolute value of their original values
 // Returns TRUE if data changed
diff --git a/indra/llmath/v3math.h b/indra/llmath/v3math.h
index dbd38c1c3f..4b3efe7394 100644
--- a/indra/llmath/v3math.h
+++ b/indra/llmath/v3math.h
@@ -69,6 +69,7 @@ class LLVector3
 
 		inline BOOL isFinite() const;									// checks to see if all values of LLVector3 are finite
 		BOOL		clamp(F32 min, F32 max);		// Clamps all values to (min,max), returns TRUE if data changed
+		BOOL		clamp(const LLVector3 &min_vec, const LLVector3 &max_vec); // Scales vector by another vector
 		BOOL		clampLength( F32 length_limit );					// Scales vector to limit length to a value
 
 		void		quantize16(F32 lowerxy, F32 upperxy, F32 lowerz, F32 upperz);	// changes the vector to reflect quatization
@@ -156,6 +157,8 @@ F32	dist_vec(const LLVector3 &a, const LLVector3 &b);		// Returns distance betwe
 F32	dist_vec_squared(const LLVector3 &a, const LLVector3 &b);// Returns distance squared between a and b
 F32	dist_vec_squared2D(const LLVector3 &a, const LLVector3 &b);// Returns distance squared between a and b ignoring Z component
 LLVector3 projected_vec(const LLVector3 &a, const LLVector3 &b); // Returns vector a projected on vector b
+LLVector3 parallel_component(const LLVector3 &a, const LLVector3 &b); // Returns vector a projected on vector b (same as projected_vec)
+LLVector3 orthogonal_component(const LLVector3 &a, const LLVector3 &b); // Returns component of vector a not parallel to vector b (same as projected_vec)
 LLVector3 lerp(const LLVector3 &a, const LLVector3 &b, F32 u); // Returns a vector that is a linear interpolation between a and b
 
 inline LLVector3::LLVector3(void)
@@ -490,6 +493,17 @@ inline LLVector3 projected_vec(const LLVector3 &a, const LLVector3 &b)
 	return project_axis * (a * project_axis);
 }
 
+inline LLVector3 parallel_component(const LLVector3 &a, const LLVector3 &b)
+{
+	return projected_vec(a, b);
+}
+
+inline LLVector3 orthogonal_component(const LLVector3 &a, const LLVector3 &b)
+{
+	return a - projected_vec(a, b);
+}
+
+
 inline LLVector3 lerp(const LLVector3 &a, const LLVector3 &b, F32 u)
 {
 	return LLVector3(