diff options
Diffstat (limited to 'source/blender/blenlib/intern/math_vector_inline.c')
| -rw-r--r-- | source/blender/blenlib/intern/math_vector_inline.c | 120 |
1 files changed, 111 insertions, 9 deletions
diff --git a/source/blender/blenlib/intern/math_vector_inline.c b/source/blender/blenlib/intern/math_vector_inline.c index 8b09cb86d3a..2181150f640 100644 --- a/source/blender/blenlib/intern/math_vector_inline.c +++ b/source/blender/blenlib/intern/math_vector_inline.c @@ -45,6 +45,14 @@ MINLINE void zero_v3(float r[3]) r[2]= 0.0f; } +MINLINE void zero_v4(float r[4]) +{ + r[0]= 0.0f; + r[1]= 0.0f; + r[2]= 0.0f; + r[3]= 0.0f; +} + MINLINE void copy_v2_v2(float r[2], const float a[2]) { r[0]= a[0]; @@ -58,6 +66,14 @@ MINLINE void copy_v3_v3(float r[3], const float a[3]) r[2]= a[2]; } +MINLINE void copy_v4_v4(float r[4], float a[4]) +{ + r[0]= a[0]; + r[1]= a[1]; + r[2]= a[2]; + r[3]= a[3]; +} + MINLINE void swap_v2_v2(float a[2], float b[2]) { SWAP(float, a[0], b[0]); @@ -71,6 +87,14 @@ MINLINE void swap_v3_v3(float a[3], float b[3]) SWAP(float, a[2], b[2]); } +MINLINE void swap_v4_v4(float a[4], float b[4]) +{ + SWAP(float, a[0], b[0]); + SWAP(float, a[1], b[1]); + SWAP(float, a[2], b[2]); + SWAP(float, a[3], b[3]); +} + /********************************* Arithmetic ********************************/ MINLINE void add_v2_v2(float *r, float *a) @@ -131,6 +155,12 @@ MINLINE void mul_v2_fl(float *v1, float f) v1[1]*= f; } +MINLINE void mul_v2_v2fl(float r[2], const float a[2], float f) +{ + r[0]= a[0]*f; + r[1]= a[1]*f; +} + MINLINE void mul_v3_fl(float r[3], float f) { r[0] *= f; @@ -138,13 +168,19 @@ MINLINE void mul_v3_fl(float r[3], float f) r[2] *= f; } -MINLINE void mul_v3_v3fl(float r[3], float a[3], float f) +MINLINE void mul_v3_v3fl(float r[3], const float a[3], float f) { r[0]= a[0]*f; r[1]= a[1]*f; r[2]= a[2]*f; } +MINLINE void mul_v2_v2(float r[2], const float a[2]) +{ + r[0] *= a[0]; + r[1] *= a[1]; +} + MINLINE void mul_v3_v3(float r[3], float a[3]) { r[0] *= a[0]; @@ -166,6 +202,12 @@ MINLINE void madd_v3_v3v3(float r[3], float a[3], float b[3]) r[2] += a[2]*b[2]; } +MINLINE void madd_v2_v2v2fl(float r[2], const float a[2], const float b[2], const float f) +{ + r[0] = a[0] + b[0]*f; + r[1] = a[1] + b[1]*f; +} + MINLINE void madd_v3_v3v3fl(float r[3], float a[3], float b[3], float f) { r[0] = a[0] + b[0]*f; @@ -263,38 +305,49 @@ MINLINE float len_v3v3(const float a[3], const float b[3]) return len_v3(d); } -MINLINE float normalize_v2(float n[2]) +MINLINE float normalize_v2_v2(float r[2], const float a[2]) { - float d= dot_v2v2(n, n); + float d= dot_v2v2(a, a); if(d > 1.0e-35f) { d= sqrtf(d); - mul_v2_fl(n, 1.0f/d); + mul_v2_v2fl(r, a, 1.0f/d); } else { - zero_v2(n); + zero_v2(r); d= 0.0f; } + return d; } -MINLINE float normalize_v3(float n[3]) +MINLINE float normalize_v2(float n[2]) { - float d= dot_v3v3(n, n); + return normalize_v2_v2(n, n); +} + +MINLINE float normalize_v3_v3(float r[3], const float a[3]) +{ + float d= dot_v3v3(a, a); /* a larger value causes normalize errors in a scaled down models with camera xtreme close */ if(d > 1.0e-35f) { d= sqrtf(d); - mul_v3_fl(n, 1.0f/d); + mul_v3_v3fl(r, a, 1.0f/d); } else { - zero_v3(n); + zero_v3(r); d= 0.0f; } return d; } +MINLINE float normalize_v3(float n[3]) +{ + return normalize_v3_v3(n, n); +} + MINLINE void normal_short_to_float_v3(float *out, short *in) { out[0] = in[0]*(1.0f/32767.0f); @@ -309,5 +362,54 @@ MINLINE void normal_float_to_short_v3(short *out, float *in) out[2] = (short)(in[2]*32767.0f); } +/********************************* Comparison ********************************/ + +MINLINE int is_zero_v3(float *v) +{ + return (v[0] == 0 && v[1] == 0 && v[2] == 0); +} + +MINLINE int is_one_v3(float *v) +{ + return (v[0] == 1 && v[1] == 1 && v[2] == 1); +} + +MINLINE int equals_v3v3(float *v1, float *v2) +{ + return ((v1[0]==v2[0]) && (v1[1]==v2[1]) && (v1[2]==v2[2])); +} + +MINLINE int compare_v3v3(float *v1, float *v2, float limit) +{ + if(fabs(v1[0]-v2[0])<limit) + if(fabs(v1[1]-v2[1])<limit) + if(fabs(v1[2]-v2[2])<limit) + return 1; + + return 0; +} + +MINLINE int compare_len_v3v3(float *v1, float *v2, float limit) +{ + float x,y,z; + + x=v1[0]-v2[0]; + y=v1[1]-v2[1]; + z=v1[2]-v2[2]; + + return ((x*x + y*y + z*z) < (limit*limit)); +} + +MINLINE int compare_v4v4(float *v1, float *v2, float limit) +{ + if(fabs(v1[0]-v2[0])<limit) + if(fabs(v1[1]-v2[1])<limit) + if(fabs(v1[2]-v2[2])<limit) + if(fabs(v1[3]-v2[3])<limit) + return 1; + + return 0; +} + #endif /* BLI_MATH_VECTOR_INLINE */ |