X-Git-Url: http://git.xonotic.org/?a=blobdiff_plain;f=matrixlib.h;h=480dec150105651468aa32e27fb51ee11c35757a;hb=834d524b6cd5f96d8c70eb241d9cb03c622e0dd2;hp=af2555dd1fbe9b67a4f65c503b57807b3de26fc4;hpb=a26c29e7adac278a87059324e40868823c752680;p=xonotic%2Fdarkplaces.git

diff --git a/matrixlib.h b/matrixlib.h
index af2555dd..480dec15 100644
--- a/matrixlib.h
+++ b/matrixlib.h
@@ -6,6 +6,8 @@
 #define M_PI		3.14159265358979323846	// matches value in gcc v2 math.h
 #endif
 
+//#define MATRIX4x4_OPENGLORIENTATION
+
 typedef struct matrix4x4_s
 {
 	float m[4][4];
@@ -28,15 +30,21 @@ void Matrix4x4_Concat (matrix4x4_t *out, const matrix4x4_t *in1, const matrix4x4
 // swaps the rows and columns of the matrix
 // (is this useful for anything?)
 void Matrix4x4_Transpose (matrix4x4_t *out, const matrix4x4_t *in1);
-// swaps the rows and columns of the rotation matrix
-// (inverting the rotation, but leaving everything else the same)
-void Matrix4x4_Transpose3x3 (matrix4x4_t *out, const matrix4x4_t *in1);
+// creates a matrix that does the opposite of the matrix provided
+// this is a full matrix inverter, it should be able to invert any matrix that
+// is possible to invert
+// (non-uniform scaling, rotation, shearing, and translation, possibly others)
+// warning: this function is SLOW
+int Matrix4x4_Invert_Full (matrix4x4_t *out, const matrix4x4_t *in1);
 // creates a matrix that does the opposite of the matrix provided
 // only supports translate, rotate, scale (not scale3) matrices
 void Matrix4x4_Invert_Simple (matrix4x4_t *out, const matrix4x4_t *in1);
 // creates a matrix that does the same rotation and translation as the matrix
 // provided, but no uniform scaling, does not support scale3 matrices
 void Matrix4x4_Normalize (matrix4x4_t *out, matrix4x4_t *in1);
+// modifies a matrix to have all vectors and origin reflected across the plane
+// to the opposite side (at least if axisscale is -2)
+void Matrix4x4_Reflect (matrix4x4_t *out, double normalx, double normaly, double normalz, double dist, double axisscale);
 
 // creates an identity matrix
 // (a matrix which does nothing)
@@ -64,9 +72,13 @@ void Matrix4x4_ToVectors(const matrix4x4_t *in, float vx[3], float vy[3], float
 // creates a matrix4x4 from a set of 3D vectors for axial directions, and translate
 void Matrix4x4_FromVectors(matrix4x4_t *out, const float vx[3], const float vy[3], const float vz[3], const float t[3]);
 
-// creates a matrix4x4 from a float[16] array in the OpenGL orientation
+// converts a matrix4x4 to a double[16] array in the OpenGL orientation
+void Matrix4x4_ToArrayDoubleGL(const matrix4x4_t *in, double out[16]);
+// creates a matrix4x4 from a double[16] array in the OpenGL orientation
 void Matrix4x4_FromArrayDoubleGL(matrix4x4_t *out, const double in[16]);
-// creates a matrix4x4 from a float[16] array in the Direct3D orientation
+// converts a matrix4x4 to a double[16] array in the Direct3D orientation
+void Matrix4x4_ToArrayDoubleD3D(const matrix4x4_t *in, double out[16]);
+// creates a matrix4x4 from a double[16] array in the Direct3D orientation
 void Matrix4x4_FromArrayDoubleD3D(matrix4x4_t *out, const double in[16]);
 
 // converts a matrix4x4 to a float[12] array in the OpenGL orientation
@@ -118,5 +130,7 @@ double Matrix4x4_ScaleFromMatrix (const matrix4x4_t *in);
 void Matrix4x4_SetOrigin (matrix4x4_t *out, double x, double y, double z);
 // moves origin vector (translate) in matrix by a simple translate
 void Matrix4x4_AdjustOrigin (matrix4x4_t *out, double x, double y, double z);
+// scales vectors of a matrix in place and allows you to scale origin as well
+void Matrix4x4_Scale (matrix4x4_t *out, double rotatescale, double originscale);
 
 #endif