diff options
Diffstat (limited to 'prb_math.c')
| -rw-r--r-- | prb_math.c | 118 |
1 files changed, 59 insertions, 59 deletions
@@ -42,76 +42,76 @@ V2 v2a(F32 x) return r; } -V2 v2inv(V2 a) +V2 invv2(V2 a) { V2 r; r = v2(-a.x, -a.y); return r; } -V2 v2add(V2 a, V2 b) +V2 addv2(V2 a, V2 b) { V2 r; r = v2(a.x+b.x, a.y+b.y); return r; } -V2 v2sub(V2 a, V2 b) +V2 subv2(V2 a, V2 b) { V2 r; r = v2(a.x-b.x, a.y-b.y); return r; } -V2 v2scalef(V2 a, F32 s) +V2 scalefv2(V2 a, F32 s) { V2 r; r = v2(a.x*s, a.y*s); return r; } -V2 v2scale(V2 a, V2 s) +V2 scalev2(V2 a, V2 s) { V2 r; r = v2(a.x*s.x, a.y*s.y); return r; } -F32 v2dot(V2 a, V2 b) +F32 dotv2(V2 a, V2 b) { F32 r; r = a.x*b.x+a.y*b.y; return r; } -F32 v2len2(V2 a) +F32 len2v2(V2 a) { F32 r; - r = v2dot(a, a); + r = dotv2(a, a); return r; } -F32 v2len(V2 a) +F32 lenv2(V2 a) { F32 r; - r = f32sqrt(v2len2(a)); + r = f32sqrt(len2v2(a)); return r; } -V2 v2norm(V2 a) +V2 normv2(V2 a) { F32 len; V2 r; r = V2_ZERO; - len = v2len(a); + len = lenv2(a); if (len) r = v2(a.x/len, a.y/len); return r; } -void v2print(V2 a) +void printv2(V2 a) { fprintf(stdout, "{%f, %f}T\n", a.x, a.y); } @@ -146,49 +146,49 @@ V3 v3fromv4(V4 a) return r; } -V3 v3inv(V3 a) +V3 invv3(V3 a) { V3 r; r = v3(-a.x, -a.y, -a.z); return r; } -V3 v3add(V3 a, V3 b) +V3 addv3(V3 a, V3 b) { V3 r; r = v3(a.x+b.x, a.y+b.y, a.z+b.z); return r; } -V3 v3sub(V3 a, V3 b) +V3 subv3(V3 a, V3 b) { V3 r; r = v3(a.x-b.x, a.y-b.y, a.z-b.z); return r; } -V3 v3scalef(V3 a, F32 s) +V3 scalefv3(V3 a, F32 s) { V3 r; r = v3(a.x*s, a.y*s, a.z*s); return r; } -V3 v3scale(V3 a, V3 s) +V3 scalev3(V3 a, V3 s) { V3 r; r = v3(a.x*s.x, a.y*s.y, a.z*s.z); return r; } -F32 v3dot(V3 a, V3 b) +F32 dotv3(V3 a, V3 b) { F32 r; r = a.x*b.x + a.y*b.y + a.z*b.z; return r; } -V3 v3cross(V3 left, V3 right) +V3 crossv3(V3 left, V3 right) { V3 r; r = v3((left.y*right.z-right.y*left.z), @@ -197,34 +197,34 @@ V3 v3cross(V3 left, V3 right) return r; } -F32 v3len2(V3 a) +F32 len2v3(V3 a) { F32 r; - r = v3dot(a, a); + r = dotv3(a, a); return r; } -F32 v3len(V3 a) +F32 lenv3(V3 a) { F32 r; - r = f32sqrt(v3len2(a)); + r = f32sqrt(len2v3(a)); return r; } -V3 v3norm(V3 a) +V3 normv3(V3 a) { F32 len; V3 r; r = V3_ZERO; - len = v3len(a); + len = lenv3(a); if (len) r = v3(a.x/len, a.y/len, a.z/len); return r; } -void v3print(V3 a) +void printv3(V3 a) { fprintf(stdout, "{%f, %f, %f}T\n", a.x, a.y, a.z); } @@ -253,82 +253,82 @@ V4 v4fromv3(V3 a) return r; } -V4 v4inv(V4 a) +V4 invv4(V4 a) { V4 r; r = v4(-a.x, -a.y, -a.z, -a.w); return r; } -V4 v4add(V4 a, V4 b) +V4 addv4(V4 a, V4 b) { V4 r; r = v4(a.x+b.x, a.y+b.y, a.z+b.z, a.w+b.w); return r; } -V4 v4sub(V4 a, V4 b) +V4 subv4(V4 a, V4 b) { V4 r; r = v4(a.x-b.x, a.y-b.y, a.z-b.z, a.w-b.w); return r; } -V4 v4scalef(V4 a, F32 s) +V4 scalefv4(V4 a, F32 s) { V4 r; r = v4(a.x*s, a.y*s, a.z*s, a.w*s); return r; } -V4 v4scale(V4 a, V4 s) +V4 scalev4(V4 a, V4 s) { V4 r; r = v4(a.x*s.x, a.y*s.y, a.z*s.z, a.w*s.w); return r; } -F32 v4dot(V4 a, V4 b) +F32 dotv4(V4 a, V4 b) { F32 r; r = a.x*b.x+a.y*b.y+a.z*b.z+a.w*b.w; return r; } -F32 v4len2(V4 a) +F32 len2v4(V4 a) { F32 r; - r = v4dot(a, a); + r = dotv4(a, a); return r; } -F32 v4len(V4 a) +F32 lenv4(V4 a) { F32 r; - r = f32sqrt(v4len2(a)); + r = f32sqrt(len2v4(a)); return r; } -V4 v4norm(V4 a) +V4 normv4(V4 a) { F32 len; V4 r; r = V4_ZERO; - len = v4len(a); + len = lenv4(a); if (len) r = v4(a.x/len, a.y/len, a.z/len, a.w/len); return r; } -void v4print(V4 a) +void printv4(V4 a) { fprintf(stdout, "{%f, %f, %f, %f}T\n", a.x, a.y, a.z, a.w); } /* NOTE(pryazha): Matrices */ -F32 mat4det(MAT4 m) +F32 detmat4(MAT4 m) { F32 r, m00minor, m01minor, m02minor, m03minor; @@ -354,25 +354,25 @@ F32 mat4det(MAT4 m) return r; } -MAT4 mat4transp(MAT4 m) +MAT4 transpmat4(MAT4 m) { MAT4 r; r = m; - Swap(F32, r.m0.y, r.m1.x); - Swap(F32, r.m0.z, r.m2.x); - Swap(F32, r.m0.w, r.m3.x); + SWAP(F32, r.m0.y, r.m1.x); + SWAP(F32, r.m0.z, r.m2.x); + SWAP(F32, r.m0.w, r.m3.x); - Swap(F32, r.m1.z, r.m2.y); - Swap(F32, r.m1.w, r.m3.y); + SWAP(F32, r.m1.z, r.m2.y); + SWAP(F32, r.m1.w, r.m3.y); - Swap(F32, r.m2.w, r.m3.z); + SWAP(F32, r.m2.w, r.m3.z); return r; } -MAT4 mat4mul(MAT4 left, MAT4 right) +MAT4 mulmat4(MAT4 left, MAT4 right) { F32 l00, l01, l02, l03; F32 l10, l11, l12, l13; @@ -419,7 +419,7 @@ MAT4 mat4mul(MAT4 left, MAT4 right) return r; } -MAT4 mat4transl(MAT4 m, V3 v) +MAT4 translmat4(MAT4 m, V3 v) { MAT4 t, r; @@ -427,12 +427,12 @@ MAT4 mat4transl(MAT4 m, V3 v) t.m3.x = v.x; t.m3.y = v.y; t.m3.z = v.z; - r = mat4mul(t, m); + r = mulmat4(t, m); return r; } -MAT4 mat4scale(MAT4 m, V3 v) +MAT4 scalemat4(MAT4 m, V3 v) { MAT4 s, r; @@ -440,12 +440,12 @@ MAT4 mat4scale(MAT4 m, V3 v) s.m0.x = v.x; s.m1.y = v.y; s.m2.z = v.z; - r = mat4mul(s, m); + r = mulmat4(s, m); return r; } -MAT4 mat4_change_basis(V3 x, V3 y, V3 z) +MAT4 rotateaxismat4(V3 x, V3 y, V3 z) { MAT4 r; @@ -463,7 +463,7 @@ MAT4 mat4_change_basis(V3 x, V3 y, V3 z) * | 0 cx -sx |*| 0 1 0 |*| sz cz 0 |=| sx*sy*cz+cx*sz -sx*sy*sz+cx*cz -sx*cy | * | 0 sx cx | | -sy 0 cy | | 0 0 1 | | -cx*sy*cz+sx*sz cx*sy*sz+sx*cz cx*cy | */ -MAT4 mat4rotate(MAT4 m, V3 angles) +MAT4 rotatemat4(MAT4 m, V3 angles) { F32 angle, cx, sx, cy, sy, cz, sz; MAT4 rotate, r; @@ -482,14 +482,14 @@ MAT4 mat4rotate(MAT4 m, V3 angles) newx = v3(cy*cz, sx*sy*cz+cx*sz, -cx*sy*cz+sx*sz); newy = v3(-cy*sz, -sx*sy*sz+cx*cz, cx*sy*sz+sx*cz); newz = v3(sy, -sx*cy, cx*cy); - rotate = mat4_change_basis(newx, newy, newz); + rotate = rotateaxismat4(newx, newy, newz); - r = mat4mul(rotate, m); + r = mulmat4(rotate, m); return r; } -V4 mat4v4mul(MAT4 m, V4 v) +V4 mulmat4v4(MAT4 m, V4 v) { V4 r; @@ -501,7 +501,7 @@ V4 mat4v4mul(MAT4 m, V4 v) return r; } -void mat4print(MAT4 m) +void printmat4(MAT4 m) { fprintf(stdout, "| %.4f %.4f %.4f %.4f |\n", m.m0.x, m.m1.x, m.m2.x, m.m3.x); fprintf(stdout, "| %.4f %.4f %.4f %.4f |\n", m.m0.y, m.m1.y, m.m2.y, m.m3.y); |