when r_shadow_shadowmapping is enabled, r_shadows uses shadowmaps instead of stencils

[xonotic/darkplaces.git] / mathlib.h

diff --git a/mathlib.h b/mathlib.h
index ffabf2aee0f56b8758a830b3cd345e2331364bee..52c711138a5d40a92d91ae6ebd4f5f3fd4d77a0a 100644 (file)
--- a/mathlib.h
+++ b/mathlib.h
@@ -77,12 +77,21 @@ unsigned int CeilPowerOf2(unsigned int value);
 #define RAD2DEG(a) ((a) * (180.0f / (float) M_PI))
 #define ANGLEMOD(a) ((a) - 360.0 * floor((a) / 360.0))
 
+#define DotProduct2(a,b) ((a)[0]*(b)[0]+(a)[1]*(b)[1])
+#define Vector2Clear(a) ((a)[0]=(a)[1]=0)
+#define Vector2Compare(a,b) (((a)[0]==(b)[0])&&((a)[1]==(b)[1]))
+#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 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])
 #define Vector4Clear(a) ((a)[0]=(a)[1]=(a)[2]=(a)[3]=0)
 #define Vector4Compare(a,b) (((a)[0]==(b)[0])&&((a)[1]==(b)[1])&&((a)[2]==(b)[2])&&((a)[3]==(b)[3]))
 #define Vector4Copy(a,b) ((b)[0]=(a)[0],(b)[1]=(a)[1],(b)[2]=(a)[2],(b)[3]=(a)[3])
 #define Vector4Negate(a,b) ((b)[0]=-((a)[0]),(b)[1]=-((a)[1]),(b)[2]=-((a)[2]),(b)[3]=-((a)[3]))
 #define Vector4Set(a,b,c,d,e) ((a)[0]=(b),(a)[1]=(c),(a)[2]=(d),(a)[3]=(e))
+#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 VectorNegate(a,b) ((b)[0]=-((a)[0]),(b)[1]=-((a)[1]),(b)[2]=-((a)[2]))
 #define VectorSet(a,b,c,d) ((a)[0]=(b),(a)[1]=(c),(a)[2]=(d))
@@ -98,7 +107,7 @@ unsigned int CeilPowerOf2(unsigned int value);
 #define VectorNormalizeDouble(v) {double ilength = sqrt(DotProduct((v),(v)));if (ilength) ilength = 1.0 / ilength;(v)[0] *= ilength;(v)[1] *= ilength;(v)[2] *= ilength;}
 #define VectorDistance2(a, b) (((a)[0] - (b)[0]) * ((a)[0] - (b)[0]) + ((a)[1] - (b)[1]) * ((a)[1] - (b)[1]) + ((a)[2] - (b)[2]) * ((a)[2] - (b)[2]))
 #define VectorDistance(a, b) (sqrt(VectorDistance2(a,b)))
-#define VectorLength(a) (sqrt(DotProduct(a, a)))
+#define VectorLength(a) (sqrt((double)DotProduct(a, a)))
 #define VectorLength2(a) (DotProduct(a, a))
 #define VectorScale(in, scale, out) ((out)[0] = (in)[0] * (scale),(out)[1] = (in)[1] * (scale),(out)[2] = (in)[2] * (scale))
 #define VectorScaleCast(in, scale, outtype, out) ((out)[0] = (outtype) ((in)[0] * (scale)),(out)[1] = (outtype) ((in)[1] * (scale)),(out)[2] = (outtype) ((in)[2] * (scale)))