overhauled vertex formats, now supports 100% interleaved arrays

[xonotic/darkplaces.git] / mathlib.h

diff --git a/mathlib.h b/mathlib.h
index 6413936561ac2bde77b169c43111d4a097ec5c14..e7148f40968ab368fa4525ba675c1a9478f6a9ac 100644 (file)
--- a/mathlib.h
+++ b/mathlib.h
@@ -83,6 +83,7 @@ unsigned int CeilPowerOf2(unsigned int value);
 #define Vector2Copy(a,b) ((b)[0]=(a)[0],(b)[1]=(a)[1])
 #define Vector2Negate(a,b) ((b)[0]=-((a)[0]),(b)[1]=-((a)[1]))
 #define Vector2Set(a,b,c,d,e) ((a)[0]=(b),(a)[1]=(c))
+#define Vector2Scale(in, scale, out) ((out)[0] = (in)[0] * (scale),(out)[1] = (in)[1] * (scale))
 #define Vector2Normalize2(v,dest) {float ilength = (float) sqrt(DotProduct2((v),(v)));if (ilength) ilength = 1.0f / ilength;dest[0] = (v)[0] * ilength;dest[1] = (v)[1] * ilength;}
 
 #define DotProduct4(a,b) ((a)[0]*(b)[0]+(a)[1]*(b)[1]+(a)[2]*(b)[2]+(a)[3]*(b)[3])
@@ -94,6 +95,7 @@ unsigned int CeilPowerOf2(unsigned int value);
 #define Vector4Normalize2(v,dest) {float ilength = (float) sqrt(DotProduct4((v),(v)));if (ilength) ilength = 1.0f / ilength;dest[0] = (v)[0] * ilength;dest[1] = (v)[1] * ilength;dest[2] = (v)[2] * ilength;dest[3] = (v)[3] * ilength;}
 #define Vector4Subtract(a,b,c) ((c)[0]=(a)[0]-(b)[0],(c)[1]=(a)[1]-(b)[1],(c)[2]=(a)[2]-(b)[2],(c)[3]=(a)[3]-(b)[3])
 #define Vector4Add(a,b,c) ((c)[0]=(a)[0]+(b)[0],(c)[1]=(a)[1]+(b)[1],(c)[2]=(a)[2]+(b)[2],(c)[3]=(a)[3]+(b)[3])
+#define Vector4Scale(in, scale, out) ((out)[0] = (in)[0] * (scale),(out)[1] = (in)[1] * (scale),(out)[2] = (in)[2] * (scale),(out)[3] = (in)[3] * (scale))
 #define Vector4Multiply(a,b,c) ((c)[0]=(a)[0]*(b)[0],(c)[1]=(a)[1]*(b)[1],(c)[2]=(a)[2]*(b)[2],(c)[3]=(a)[3]*(b)[3])
 #define Vector4MA(a, scale, b, c) ((c)[0] = (a)[0] + (scale) * (b)[0],(c)[1] = (a)[1] + (scale) * (b)[1],(c)[2] = (a)[2] + (scale) * (b)[2],(c)[3] = (a)[3] + (scale) * (b)[3])