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Xash3DArchive/public/matrix_lib.h

1646 lines
44 KiB
C

//=======================================================================
// Copyright XashXT Group 2008 ©
// matrix_lib.h - inline matrix library
//=======================================================================
#ifndef MATRIX_LIB_H
#define MATRIX_LIB_H
//#define OPENGL_STYLE // TODO: enable OpenGL style someday
//#define RHAND_STYLE // right hand style euler engles
/*
Quake engine tranformation matrix
Quake OpenGL other changes
{ 0, 0,-1, 0, }, [ROLL] [PITCH] also put Z going up
{-1, 0, 0, 0, }, [PITCH] [YAW] also put Z going up
{ 0, 1, 0, 0, }, [YAW] [ROLL]
{ 0, 0, 0, 1, }, [ORIGIN] [ORIGIN]
*/
/*
========================================================================
Matrix3x3 operations
matrix3x3 always keep in opengl style
========================================================================
*/
#define Matrix3x3_LoadIdentity( mat ) Matrix3x3_Copy( mat, matrix3x3_identity )
static const matrix3x3 matrix3x3_identity =
{
{ 1, 0, 0 }, // PITCH [forward]
{ 0, 1, 0 }, // YAW [right]
{ 0, 0, 1 }, // ROLL [up]
};
_inline void Matrix3x3_Copy( matrix3x3 out, const matrix3x3 in )
{
Mem_Copy( out, in, sizeof( matrix3x3 ));
}
_inline void Matrix3x3_FromNormal( const vec3_t normal, matrix3x3 out )
{
out[0][0] = normal[0];
out[0][1] = normal[1];
out[0][2] = normal[2];
if( normal[0] || normal[1] )
{
double length;
out[1][0] = normal[1];
out[1][1] = -normal[0];
out[1][2] = 0;
length = out[1][0] * out[1][0] + out[1][1] * out[1][1] + out[1][2] * out[1][2];
if( length != 0.0f )
{
double ilength;
ilength = 1.0f / com.sqrt( length );
out[1][0] *= ilength;
out[1][1] *= ilength;
out[1][2] *= ilength;
}
out[2][0] = out[0][1] * out[1][2] - out[0][2] * out[1][1];
out[2][1] = out[0][2] * out[1][0] - out[0][0] * out[1][2];
out[2][2] = out[0][0] * out[1][1] - out[0][1] * out[1][0];
}
else
{
// set identity
out[1][0] = 1.0f;
out[1][1] = 0.0f;
out[1][2] = 0.0f;
out[2][0] = 0.0f;
out[2][1] = 1.0f;
out[2][2] = 0.0f;
}
}
_inline void Matrix3x3_FromAngles( const vec3_t angles, matrix3x3 out )
{
double sp, sy, sr, cp, cy, cr;
double angle;
angle = DEG2RAD( angles[PITCH] );
sp = com.sin( angle );
cp = com.cos( angle );
angle = DEG2RAD( angles[YAW] );
sy = com.sin( angle );
cy = com.cos( angle );
angle = DEG2RAD( angles[ROLL] );
sr = com.sin( angle );
cr = com.cos( angle );
out[0][0] = cp*cy;
out[0][1] = cp*sy;
out[0][2] = -sp;
out[1][0] = sr*sp*cy+cr*-sy;
out[1][1] = sr*sp*sy+cr*cy;
out[1][2] = sr*cp;
out[2][0] = cr*sp*cy+-sr*-sy;
out[2][1] = cr*sp*sy+-sr*cy;
out[2][2] = cr*cp;
}
_inline void Matrix3x3_FromMatrix4x4( matrix3x3 out, const matrix4x4 in )
{
#ifdef OPENGL_STYLE
out[0][0] = in[0][0];
out[1][0] = in[1][0];
out[2][0] = in[2][0];
out[0][1] = in[0][1];
out[1][1] = in[1][1];
out[2][1] = in[2][1];
out[0][2] = in[0][2];
out[1][2] = in[1][2];
out[2][2] = in[2][2];
#else
out[0][0] = in[0][0];
out[1][0] = in[0][1];
out[2][0] = in[0][2];
out[0][1] = in[1][0];
out[1][1] = in[1][1];
out[2][1] = in[1][2];
out[0][2] = in[2][0];
out[1][2] = in[2][1];
out[2][2] = in[2][2];
#endif
}
_inline void Matrix3x3_ToAngles( const matrix3x3 matrix, vec3_t out )
{
double pitch, cpitch, yaw, roll;
pitch = -com.asin( matrix[0][2] );
cpitch = com.cos( pitch );
if( fabs( cpitch ) > EQUAL_EPSILON ) // gimball lock?
{
cpitch = 1.0f / cpitch;
pitch = RAD2DEG( pitch );
#ifdef RHAND_STYLE
yaw = RAD2DEG( com.atan2( matrix[0][1] * cpitch, matrix[0][0] * cpitch ));
#else
yaw = RAD2DEG( com.atan2((-1)*-matrix[0][1] * cpitch, matrix[0][0] * cpitch ));
#endif
roll = RAD2DEG( com.atan2( -matrix[1][2] * cpitch, matrix[2][2] * cpitch ));
}
else
{
pitch = matrix[0][2] > 0 ? -90.0f : 90.0f;
yaw = RAD2DEG( atan2( matrix[1][0], -matrix[1][1] ));
#ifdef RHAND_STYLE
roll = 180;
#else
roll = 0;
#endif
}
out[PITCH] = pitch;
out[YAW] = yaw;
out[ROLL] = roll;
}
_inline bool Matrix3x3_Compare( const matrix3x3 mat1, const matrix3x3 mat2 )
{
if( mat1[0][0] != mat2[0][0] || mat1[0][1] != mat2[0][1] || mat1[0][2] != mat2[0][2] )
return false;
if( mat1[1][0] != mat2[1][0] || mat1[1][1] != mat2[1][1] || mat1[1][2] != mat2[1][2] )
return false;
if( mat1[2][0] != mat2[2][0] || mat1[2][1] != mat2[2][1] || mat1[2][2] != mat2[2][2] )
return false;
return true;
}
_inline void Matrix3x3_Transpose( matrix3x3 out, const matrix3x3 in )
{
out[0][0] = in[0][0];
out[1][0] = in[0][1];
out[2][0] = in[0][2];
out[0][1] = in[1][0];
out[1][1] = in[1][1];
out[2][1] = in[1][2];
out[0][2] = in[2][0];
out[1][2] = in[2][1];
out[2][2] = in[2][2];
}
_inline void Matrix3x3_Transform( matrix3x3 in, const float v[3], float out[3] )
{
out[0] = in[0][0] * v[0] + in[0][1] * v[1] + in[0][2] * v[2];
out[1] = in[1][0] * v[0] + in[1][1] * v[1] + in[1][2] * v[2];
out[2] = in[2][0] * v[0] + in[2][1] * v[1] + in[2][2] * v[2];
}
_inline void Matrix3x3_CreateRotate( matrix3x3 out, float angle, float x, float y, float z )
{
double len, c, s;
len = x * x + y * y + z * z;
if( len != 0.0f ) len = 1.0f / sqrt( len );
x *= len;
y *= len;
z *= len;
angle = DEG2RAD( angle );
c = com.cos( angle );
s = com.sin( angle );
out[0][0] = x * x + c * (1 - x * x);
out[0][1] = x * y * (1 - c) + z * s;
out[0][2] = x * z * (1 - c) - y * s;
out[1][0] = x * y * (1 - c) - z * s;
out[1][1] = y * y + c * (1 - y * y);
out[1][2] = y * z * (1 - c) + x * s;
out[2][0] = x * z * (1 - c) + y * s;
out[2][1] = y * z * (1 - c) - x * s;
out[2][2] = z * z + c * (1 - z * z);
}
_inline void Matrix3x3_Concat( matrix3x3 out, const matrix3x3 in1, const matrix3x3 in2 )
{
out[0][0] = in1[0][0] * in2[0][0] + in1[0][1] * in2[1][0] + in1[0][2] * in2[2][0];
out[0][1] = in1[0][0] * in2[0][1] + in1[0][1] * in2[1][1] + in1[0][2] * in2[2][1];
out[0][2] = in1[0][0] * in2[0][2] + in1[0][1] * in2[1][2] + in1[0][2] * in2[2][2];
out[1][0] = in1[1][0] * in2[0][0] + in1[1][1] * in2[1][0] + in1[1][2] * in2[2][0];
out[1][1] = in1[1][0] * in2[0][1] + in1[1][1] * in2[1][1] + in1[1][2] * in2[2][1];
out[1][2] = in1[1][0] * in2[0][2] + in1[1][1] * in2[1][2] + in1[1][2] * in2[2][2];
out[2][0] = in1[2][0] * in2[0][0] + in1[2][1] * in2[1][0] + in1[2][2] * in2[2][0];
out[2][1] = in1[2][0] * in2[0][1] + in1[2][1] * in2[1][1] + in1[2][2] * in2[2][1];
out[2][2] = in1[2][0] * in2[0][2] + in1[2][1] * in2[1][2] + in1[2][2] * in2[2][2];
}
_inline void Matrix3x3_FromPoints( const vec3_t v1, const vec3_t v2, const vec3_t v3, matrix3x3 out )
{
float d;
out[2][0] = (v1[1] - v2[1]) * (v3[2] - v2[2]) - (v1[2] - v2[2]) * (v3[1] - v2[1]);
out[2][1] = (v1[2] - v2[2]) * (v3[0] - v2[0]) - (v1[0] - v2[0]) * (v3[2] - v2[2]);
out[2][2] = (v1[0] - v2[0]) * (v3[1] - v2[1]) - (v1[1] - v2[1]) * (v3[0] - v2[0]);
d = rsqrt( out[2][0] * out[2][0] + out[2][1] * out[2][1] + out[2][2] * out[2][2]);
out[2][0] *= d;
out[2][1] *= d;
out[2][2] *= d;
// this rotate and negate guarantees a vector not colinear with the original
out[1][0] = out[2][2];
out[1][1] = -out[2][0];
out[1][2] = out[2][1];
d = -( out[1][0] * out[2][0] + out[1][1] * out[2][1] + out[1][2] * out[2][2] );
out[1][0] = out[1][0] + d * out[2][0];
out[1][1] = out[1][1] + d * out[2][1];
out[1][2] = out[1][2] + d * out[2][2];
d = rsqrt( out[1][0] * out[1][0] + out[1][1] * out[1][1] + out[1][2] * out[1][2]);
out[1][0] *= d;
out[1][1] *= d;
out[1][2] *= d;
out[0][0] = out[1][1] * out[2][2] - out[1][2] * out[2][1];
out[0][1] = out[1][2] * out[2][0] - out[1][0] * out[2][2];
out[0][2] = out[1][0] * out[2][1] - out[1][1] * out[2][0];
}
// FIXME: optimize
_inline void Matrix3x3_ConcatRotate( matrix3x3 out, double angle, double x, double y, double z )
{
matrix3x3 base, temp;
Matrix3x3_Copy( base, out );
Matrix3x3_CreateRotate( temp, angle, x, y, z );
Matrix3x3_Concat( out, base, temp );
}
/*
========================================================================
Matrix4x4 operations
========================================================================
*/
#define Matrix4x4_LoadIdentity( mat ) Matrix4x4_Copy( mat, identitymatrix )
static const matrix4x4 identitymatrix =
{
{ 1, 0, 0, 0 }, // PITCH
{ 0, 1, 0, 0 }, // YAW
{ 0, 0, 1, 0 }, // ROLL
{ 0, 0, 0, 1 }, // ORIGIN
};
static const matrix4x4 matrix4x4_halfidentity =
{
{ 0.5, 0.0, 0.0, 0.0 }, // PITCH
{ 0.0, 0.5, 0.0, 0.0 }, // YAW
{ 0.0, 0.0, 0.5, 0.0 }, // ROLL
{ 0.5, 0.5, 0.5, 1.0 }, // ORIGIN
};
_inline void Matrix4x4_Copy( matrix4x4 out, const matrix4x4 in )
{
// FIXME: replace with Mem_Copy
memcpy( out, in, sizeof(matrix4x4));
}
_inline void Matrix4x4_TransformPoint( const matrix4x4 in, vec3_t point )
{
float out1, out2, out3;
#ifdef OPENGL_STYLE
out1 = in[0][0] * point[0];
out2 = in[0][1] * point[0];
out3 = in[0][2] * point[0];
out1 += in[1][0] * point[1];
out2 += in[1][1] * point[1];
out3 += in[1][2] * point[1];
out1 += in[2][0] * point[2];
out2 += in[2][1] * point[2];
out3 += in[2][2] * point[2];
out1 += in[3][0];
out2 += in[3][1];
out3 += in[3][2];
#else
out1 = in[0][0] * point[0];
out2 = in[1][0] * point[0];
out3 = in[2][0] * point[0];
out1 += in[0][1] * point[1];
out2 += in[1][1] * point[1];
out3 += in[2][1] * point[1];
out1 += in[0][2] * point[2];
out2 += in[1][2] * point[2];
out3 += in[2][2] * point[2];
out1 += in[0][3];
out2 += in[1][3];
out3 += in[2][3];
#endif
point[0] = out1;
point[1] = out2;
point[2] = out3;
}
_inline void Matrix4x4_Transform3x3( const matrix4x4 in, const float v[3], float out[3] )
{
#ifdef OPENGL_STYLE
out[0] = v[0] * in[0][0] + v[1] * in[1][0] + v[2] * in[2][0];
out[1] = v[0] * in[0][1] + v[1] * in[1][1] + v[2] * in[2][1];
out[2] = v[0] * in[0][2] + v[1] * in[1][2] + v[2] * in[2][2];
#else
out[0] = v[0] * in[0][0] + v[1] * in[0][1] + v[2] * in[0][2];
out[1] = v[0] * in[1][0] + v[1] * in[1][1] + v[2] * in[1][2];
out[2] = v[0] * in[2][0] + v[1] * in[2][1] + v[2] * in[2][2];
#endif
}
// same as Matrix4x4_Transform3x3 but transpose matrix before
_inline void Matrix4x4_Rotate3x3( const matrix4x4 in, const float v[3], float out[3] )
{
#ifdef OPENGL_STYLE
out[0] = v[0] * in[0][0] + v[1] * in[0][1] + v[2] * in[0][2];
out[1] = v[0] * in[1][0] + v[1] * in[1][1] + v[2] * in[1][2];
out[2] = v[0] * in[2][0] + v[1] * in[2][1] + v[2] * in[2][2];
#else
out[0] = v[0] * in[0][0] + v[1] * in[1][0] + v[2] * in[2][0];
out[1] = v[0] * in[0][1] + v[1] * in[1][1] + v[2] * in[2][1];
out[2] = v[0] * in[0][2] + v[1] * in[1][2] + v[2] * in[2][2];
#endif
}
_inline void Matrix4x4_Transform( const matrix4x4 in, const float v[3], float out[3] )
{
#ifdef OPENGL_STYLE
out[0] = v[0] * in[0][0] + v[1] * in[1][0] + v[2] * in[2][0] + in[3][0];
out[1] = v[0] * in[0][1] + v[1] * in[1][1] + v[2] * in[2][1] + in[3][1];
out[2] = v[0] * in[0][2] + v[1] * in[1][2] + v[2] * in[2][2] + in[3][2];
#else
out[0] = v[0] * in[0][0] + v[1] * in[0][1] + v[2] * in[0][2] + in[0][3];
out[1] = v[0] * in[1][0] + v[1] * in[1][1] + v[2] * in[1][2] + in[1][3];
out[2] = v[0] * in[2][0] + v[1] * in[2][1] + v[2] * in[2][2] + in[2][3];
#endif
}
_inline void Matrix4x4_Invert_Simple( matrix4x4 out, const matrix4x4 in1 )
{
// we only support uniform scaling, so assume the first row is enough
// (note the lack of sqrt here, because we're trying to undo the scaling,
// this means multiplying by the inverse scale twice - squaring it, which
// makes the sqrt a waste of time)
double scale = 1.0 / (in1[0][0] * in1[0][0] + in1[0][1] * in1[0][1] + in1[0][2] * in1[0][2]);
// invert the rotation by transposing and multiplying by the squared
// recipricol of the input matrix scale as described above
out[0][0] = in1[0][0] * scale;
out[0][1] = in1[1][0] * scale;
out[0][2] = in1[2][0] * scale;
out[1][0] = in1[0][1] * scale;
out[1][1] = in1[1][1] * scale;
out[1][2] = in1[2][1] * scale;
out[2][0] = in1[0][2] * scale;
out[2][1] = in1[1][2] * scale;
out[2][2] = in1[2][2] * scale;
#ifdef OPENGL_STYLE
// invert the translate
out[3][0] = -(in1[3][0] * out[0][0] + in1[3][1] * out[1][0] + in1[3][2] * out[2][0]);
out[3][1] = -(in1[3][0] * out[0][1] + in1[3][1] * out[1][1] + in1[3][2] * out[2][1]);
out[3][2] = -(in1[3][0] * out[0][2] + in1[3][1] * out[1][2] + in1[3][2] * out[2][2]);
// don't know if there's anything worth doing here
out[0][3] = 0;
out[1][3] = 0;
out[2][3] = 0;
out[3][3] = 1;
#else
// invert the translate
out[0][3] = -(in1[0][3] * out[0][0] + in1[1][3] * out[0][1] + in1[2][3] * out[0][2]);
out[1][3] = -(in1[0][3] * out[1][0] + in1[1][3] * out[1][1] + in1[2][3] * out[1][2]);
out[2][3] = -(in1[0][3] * out[2][0] + in1[1][3] * out[2][1] + in1[2][3] * out[2][2]);
// don't know if there's anything worth doing here
out[3][0] = 0;
out[3][1] = 0;
out[3][2] = 0;
out[3][3] = 1;
#endif
}
_inline void Matrix4x4_CreateTranslate( matrix4x4 out, double x, double y, double z )
{
#ifdef OPENGL_STYLE
out[0][0] = 1.0f;
out[1][0] = 0.0f;
out[2][0] = 0.0f;
out[3][0] = x;
out[0][1] = 0.0f;
out[1][1] = 1.0f;
out[2][1] = 0.0f;
out[3][1] = y;
out[0][2] = 0.0f;
out[1][2] = 0.0f;
out[2][2] = 1.0f;
out[3][2] = z;
out[0][3] = 0.0f;
out[1][3] = 0.0f;
out[2][3] = 0.0f;
out[3][3] = 1.0f;
#else
out[0][0] = 1.0f;
out[0][1] = 0.0f;
out[0][2] = 0.0f;
out[0][3] = x;
out[1][0] = 0.0f;
out[1][1] = 1.0f;
out[1][2] = 0.0f;
out[1][3] = y;
out[2][0] = 0.0f;
out[2][1] = 0.0f;
out[2][2] = 1.0f;
out[2][3] = z;
out[3][0] = 0.0f;
out[3][1] = 0.0f;
out[3][2] = 0.0f;
out[3][3] = 1.0f;
#endif
}
_inline void Matrix4x4_CreateRotate( matrix4x4 out, double angle, double x, double y, double z )
{
double len, c, s;
len = x * x + y * y + z * z;
if( len != 0.0f ) len = 1.0f / com.sqrt( len );
x *= len;
y *= len;
z *= len;
angle *= (-M_PI / 180.0);
c = com.cos( angle );
s = com.sin( angle );
#ifdef OPENGL_STYLE
out[0][0]=x * x + c * (1 - x * x);
out[1][0]=x * y * (1 - c) + z * s;
out[2][0]=z * x * (1 - c) - y * s;
out[3][0]=0.0f;
out[0][1]=x * y * (1 - c) - z * s;
out[1][1]=y * y + c * (1 - y * y);
out[2][1]=y * z * (1 - c) + x * s;
out[3][1]=0.0f;
out[0][2]=z * x * (1 - c) + y * s;
out[1][2]=y * z * (1 - c) - x * s;
out[2][2]=z * z + c * (1 - z * z);
out[3][2]=0.0f;
out[0][3]=0.0f;
out[1][3]=0.0f;
out[2][3]=0.0f;
out[3][3]=1.0f;
#else
out[0][0]=x * x + c * (1 - x * x);
out[0][1]=x * y * (1 - c) + z * s;
out[0][2]=z * x * (1 - c) - y * s;
out[0][3]=0.0f;
out[1][0]=x * y * (1 - c) - z * s;
out[1][1]=y * y + c * (1 - y * y);
out[1][2]=y * z * (1 - c) + x * s;
out[1][3]=0.0f;
out[2][0]=z * x * (1 - c) + y * s;
out[2][1]=y * z * (1 - c) - x * s;
out[2][2]=z * z + c * (1 - z * z);
out[2][3]=0.0f;
out[3][0]=0.0f;
out[3][1]=0.0f;
out[3][2]=0.0f;
out[3][3]=1.0f;
#endif
}
_inline void Matrix4x4_CreateScale( matrix4x4 out, double x )
{
out[0][0] = x;
out[0][1] = 0.0f;
out[0][2] = 0.0f;
out[0][3] = 0.0f;
out[1][0] = 0.0f;
out[1][1] = x;
out[1][2] = 0.0f;
out[1][3] = 0.0f;
out[2][0] = 0.0f;
out[2][1] = 0.0f;
out[2][2] = x;
out[2][3] = 0.0f;
out[3][0] = 0.0f;
out[3][1] = 0.0f;
out[3][2] = 0.0f;
out[3][3] = 1.0f;
}
_inline void Matrix4x4_CreateScale3( matrix4x4 out, double x, double y, double z )
{
out[0][0] = x;
out[0][1] = 0.0f;
out[0][2] = 0.0f;
out[0][3] = 0.0f;
out[1][0] = 0.0f;
out[1][1] = y;
out[1][2] = 0.0f;
out[1][3] = 0.0f;
out[2][0] = 0.0f;
out[2][1] = 0.0f;
out[2][2] = z;
out[2][3] = 0.0f;
out[3][0] = 0.0f;
out[3][1] = 0.0f;
out[3][2] = 0.0f;
out[3][3] = 1.0f;
}
_inline void Matrix4x4_CreateFromEntity( matrix4x4 out, double x, double y, double z, double pitch, double yaw, double roll, double scale )
{
double angle, sr, sp, sy, cr, cp, cy;
if( roll )
{
angle = yaw * (M_PI*2 / 360);
sy = com.sin( angle );
cy = com.cos( angle );
angle = pitch * (M_PI*2 / 360);
sp = com.sin( angle );
cp = com.cos( angle );
angle = roll * (M_PI*2 / 360);
sr = com.sin( angle );
cr = com.cos( angle );
#ifdef OPENGL_STYLE
out[0][0] = (cp*cy) * scale;
out[1][0] = (sr*sp*cy+cr*-sy) * scale;
out[2][0] = (cr*sp*cy+-sr*-sy) * scale;
out[3][0] = x;
out[0][1] = (cp*sy) * scale;
out[1][1] = (sr*sp*sy+cr*cy) * scale;
out[2][1] = (cr*sp*sy+-sr*cy) * scale;
out[3][1] = y;
out[0][2] = (-sp) * scale;
out[1][2] = (sr*cp) * scale;
out[2][2] = (cr*cp) * scale;
out[3][2] = z;
out[0][3] = 0;
out[1][3] = 0;
out[2][3] = 0;
out[3][3] = 1;
#else
out[0][0] = (cp*cy) * scale;
out[0][1] = (sr*sp*cy+cr*-sy) * scale;
out[0][2] = (cr*sp*cy+-sr*-sy) * scale;
out[0][3] = x;
out[1][0] = (cp*sy) * scale;
out[1][1] = (sr*sp*sy+cr*cy) * scale;
out[1][2] = (cr*sp*sy+-sr*cy) * scale;
out[1][3] = y;
out[2][0] = (-sp) * scale;
out[2][1] = (sr*cp) * scale;
out[2][2] = (cr*cp) * scale;
out[2][3] = z;
out[3][0] = 0;
out[3][1] = 0;
out[3][2] = 0;
out[3][3] = 1;
#endif
}
else if( pitch )
{
angle = yaw * (M_PI*2 / 360);
sy = com.sin( angle );
cy = com.cos( angle );
angle = pitch * (M_PI*2 / 360);
sp = com.sin( angle );
cp = com.cos( angle );
#ifdef OPENGL_STYLE
out[0][0] = (cp*cy) * scale;
out[1][0] = (-sy) * scale;
out[2][0] = (sp*cy) * scale;
out[3][0] = x;
out[0][1] = (cp*sy) * scale;
out[1][1] = (cy) * scale;
out[2][1] = (sp*sy) * scale;
out[3][1] = y;
out[0][2] = (-sp) * scale;
out[1][2] = 0;
out[2][2] = (cp) * scale;
out[3][2] = z;
out[0][3] = 0;
out[1][3] = 0;
out[2][3] = 0;
out[3][3] = 1;
#else
out[0][0] = (cp*cy) * scale;
out[0][1] = (-sy) * scale;
out[0][2] = (sp*cy) * scale;
out[0][3] = x;
out[1][0] = (cp*sy) * scale;
out[1][1] = (cy) * scale;
out[1][2] = (sp*sy) * scale;
out[1][3] = y;
out[2][0] = (-sp) * scale;
out[2][1] = 0;
out[2][2] = (cp) * scale;
out[2][3] = z;
out[3][0] = 0;
out[3][1] = 0;
out[3][2] = 0;
out[3][3] = 1;
#endif
}
else if( yaw )
{
angle = yaw * (M_PI*2 / 360);
sy = com.sin( angle );
cy = com.cos( angle );
#ifdef OPENGL_STYLE
out[0][0] = (cy) * scale;
out[1][0] = (-sy) * scale;
out[2][0] = 0;
out[3][0] = x;
out[0][1] = (sy) * scale;
out[1][1] = (cy) * scale;
out[2][1] = 0;
out[3][1] = y;
out[0][2] = 0;
out[1][2] = 0;
out[2][2] = scale;
out[3][2] = z;
out[0][3] = 0;
out[1][3] = 0;
out[2][3] = 0;
out[3][3] = 1;
#else
out[0][0] = (cy) * scale;
out[0][1] = (-sy) * scale;
out[0][2] = 0;
out[0][3] = x;
out[1][0] = (sy) * scale;
out[1][1] = (cy) * scale;
out[1][2] = 0;
out[1][3] = y;
out[2][0] = 0;
out[2][1] = 0;
out[2][2] = scale;
out[2][3] = z;
out[3][0] = 0;
out[3][1] = 0;
out[3][2] = 0;
out[3][3] = 1;
#endif
}
else
{
#ifdef OPENGL_STYLE
out[0][0] = scale;
out[1][0] = 0;
out[2][0] = 0;
out[3][0] = x;
out[0][1] = 0;
out[1][1] = scale;
out[2][1] = 0;
out[3][1] = y;
out[0][2] = 0;
out[1][2] = 0;
out[2][2] = scale;
out[3][2] = z;
out[0][3] = 0;
out[1][3] = 0;
out[2][3] = 0;
out[3][3] = 1;
#else
out[0][0] = scale;
out[0][1] = 0;
out[0][2] = 0;
out[0][3] = x;
out[1][0] = 0;
out[1][1] = scale;
out[1][2] = 0;
out[1][3] = y;
out[2][0] = 0;
out[2][1] = 0;
out[2][2] = scale;
out[2][3] = z;
out[3][0] = 0;
out[3][1] = 0;
out[3][2] = 0;
out[3][3] = 1;
#endif
}
}
_inline void Matrix4x4_FromOriginQuat( matrix4x4 out, double ox, double oy, double oz, double x, double y, double z, double w )
{
#ifdef OPENGL_STYLE
out[0][0] = 1-2*(y*y+z*z);
out[1][0] = 2*(x*y-z*w);
out[2][0] = 2*(x*z+y*w);
out[3][0] = ox;
out[0][1] = 2*(x*y+z*w);
out[1][1] = 1-2*(x*x+z*z);
out[2][1] = 2*(y*z-x*w);
out[3][1] = oy;
out[0][2] = 2*(x*z-y*w);
out[1][2] = 2*(y*z+x*w);
out[2][2] = 1-2*(x*x+y*y);
out[3][2] = oz;
out[0][3] = 0;
out[1][3] = 0;
out[2][3] = 0;
out[3][3] = 1;
#else
out[0][0] = 1-2*(y*y+z*z);
out[0][1] = 2*(x*y-z*w);
out[0][2] = 2*(x*z+y*w);
out[0][3] = ox;
out[1][0] = 2*(x*y+z*w);
out[1][1] = 1-2*(x*x+z*z);
out[1][2] = 2*(y*z-x*w);
out[1][3] = oy;
out[2][0] = 2*(x*z-y*w);
out[2][1] = 2*(y*z+x*w);
out[2][2] = 1-2*(x*x+y*y);
out[2][3] = oz;
out[3][0] = 0;
out[3][1] = 0;
out[3][2] = 0;
out[3][3] = 1;
#endif
}
/*
================
ConcatTransforms
================
*/
_inline void Matrix4x4_ConcatTransforms( matrix4x4 out, const matrix4x4 in1, const matrix4x4 in2 )
{
#ifdef OPENGL_STYLE
out[0][0] = in1[0][0] * in2[0][0] + in1[1][0] * in2[0][1] + in1[2][0] * in2[0][2];
out[1][0] = in1[0][0] * in2[1][0] + in1[1][0] * in2[1][1] + in1[2][0] * in2[1][2];
out[2][0] = in1[0][0] * in2[2][0] + in1[1][0] * in2[2][1] + in1[2][0] * in2[2][2];
out[3][0] = in1[0][0] * in2[3][0] + in1[1][0] * in2[3][1] + in1[2][0] * in2[3][2] + in1[3][0];
out[0][1] = in1[0][1] * in2[0][0] + in1[1][1] * in2[0][1] + in1[2][1] * in2[0][2];
out[1][1] = in1[0][1] * in2[1][0] + in1[1][1] * in2[1][1] + in1[2][1] * in2[1][2];
out[2][1] = in1[0][1] * in2[2][0] + in1[1][1] * in2[2][1] + in1[2][1] * in2[2][2];
out[3][1] = in1[0][1] * in2[3][0] + in1[1][1] * in2[3][1] + in1[2][1] * in2[3][2] + in1[3][1];
out[0][2] = in1[0][2] * in2[0][0] + in1[1][2] * in2[0][1] + in1[2][2] * in2[0][2];
out[1][2] = in1[0][2] * in2[1][0] + in1[1][2] * in2[1][1] + in1[2][2] * in2[1][2];
out[2][2] = in1[0][2] * in2[2][0] + in1[1][2] * in2[2][1] + in1[2][2] * in2[2][2];
out[3][2] = in1[0][2] * in2[3][0] + in1[1][2] * in2[3][1] + in1[2][2] * in2[3][2] + in1[3][2];
#else
out[0][0] = in1[0][0] * in2[0][0] + in1[0][1] * in2[1][0] + in1[0][2] * in2[2][0];
out[0][1] = in1[0][0] * in2[0][1] + in1[0][1] * in2[1][1] + in1[0][2] * in2[2][1];
out[0][2] = in1[0][0] * in2[0][2] + in1[0][1] * in2[1][2] + in1[0][2] * in2[2][2];
out[0][3] = in1[0][0] * in2[0][3] + in1[0][1] * in2[1][3] + in1[0][2] * in2[2][3] + in1[0][3];
out[1][0] = in1[1][0] * in2[0][0] + in1[1][1] * in2[1][0] + in1[1][2] * in2[2][0];
out[1][1] = in1[1][0] * in2[0][1] + in1[1][1] * in2[1][1] + in1[1][2] * in2[2][1];
out[1][2] = in1[1][0] * in2[0][2] + in1[1][1] * in2[1][2] + in1[1][2] * in2[2][2];
out[1][3] = in1[1][0] * in2[0][3] + in1[1][1] * in2[1][3] + in1[1][2] * in2[2][3] + in1[1][3];
out[2][0] = in1[2][0] * in2[0][0] + in1[2][1] * in2[1][0] + in1[2][2] * in2[2][0];
out[2][1] = in1[2][0] * in2[0][1] + in1[2][1] * in2[1][1] + in1[2][2] * in2[2][1];
out[2][2] = in1[2][0] * in2[0][2] + in1[2][1] * in2[1][2] + in1[2][2] * in2[2][2];
out[2][3] = in1[2][0] * in2[0][3] + in1[2][1] * in2[1][3] + in1[2][2] * in2[2][3] + in1[2][3];
#endif
}
_inline void Matrix4x4_Concat( matrix4x4 out, const matrix4x4 in1, const matrix4x4 in2 )
{
#ifdef OPENGL_STYLE
out[0][0] = in1[0][0] * in2[0][0] + in1[1][0] * in2[0][1] + in1[2][0] * in2[0][2] + in1[3][0] * in2[0][3];
out[1][0] = in1[0][0] * in2[1][0] + in1[1][0] * in2[1][1] + in1[2][0] * in2[1][2] + in1[3][0] * in2[1][3];
out[2][0] = in1[0][0] * in2[2][0] + in1[1][0] * in2[2][1] + in1[2][0] * in2[2][2] + in1[3][0] * in2[2][3];
out[3][0] = in1[0][0] * in2[3][0] + in1[1][0] * in2[3][1] + in1[2][0] * in2[3][2] + in1[3][0] * in2[3][3];
out[0][1] = in1[0][1] * in2[0][0] + in1[1][1] * in2[0][1] + in1[2][1] * in2[0][2] + in1[3][1] * in2[0][3];
out[1][1] = in1[0][1] * in2[1][0] + in1[1][1] * in2[1][1] + in1[2][1] * in2[1][2] + in1[3][1] * in2[1][3];
out[2][1] = in1[0][1] * in2[2][0] + in1[1][1] * in2[2][1] + in1[2][1] * in2[2][2] + in1[3][1] * in2[2][3];
out[3][1] = in1[0][1] * in2[3][0] + in1[1][1] * in2[3][1] + in1[2][1] * in2[3][2] + in1[3][1] * in2[3][3];
out[0][2] = in1[0][2] * in2[0][0] + in1[1][2] * in2[0][1] + in1[2][2] * in2[0][2] + in1[3][2] * in2[0][3];
out[1][2] = in1[0][2] * in2[1][0] + in1[1][2] * in2[1][1] + in1[2][2] * in2[1][2] + in1[3][2] * in2[1][3];
out[2][2] = in1[0][2] * in2[2][0] + in1[1][2] * in2[2][1] + in1[2][2] * in2[2][2] + in1[3][2] * in2[2][3];
out[3][2] = in1[0][2] * in2[3][0] + in1[1][2] * in2[3][1] + in1[2][2] * in2[3][2] + in1[3][2] * in2[3][3];
out[0][3] = in1[0][3] * in2[0][0] + in1[1][3] * in2[0][1] + in1[2][3] * in2[0][2] + in1[3][3] * in2[0][3];
out[1][3] = in1[0][3] * in2[1][0] + in1[1][3] * in2[1][1] + in1[2][3] * in2[1][2] + in1[3][3] * in2[1][3];
out[2][3] = in1[0][3] * in2[2][0] + in1[1][3] * in2[2][1] + in1[2][3] * in2[2][2] + in1[3][3] * in2[2][3];
out[3][3] = in1[0][3] * in2[3][0] + in1[1][3] * in2[3][1] + in1[2][3] * in2[3][2] + in1[3][3] * in2[3][3];
#else
out[0][0] = in1[0][0] * in2[0][0] + in1[0][1] * in2[1][0] + in1[0][2] * in2[2][0] + in1[0][3] * in2[3][0];
out[0][1] = in1[0][0] * in2[0][1] + in1[0][1] * in2[1][1] + in1[0][2] * in2[2][1] + in1[0][3] * in2[3][1];
out[0][2] = in1[0][0] * in2[0][2] + in1[0][1] * in2[1][2] + in1[0][2] * in2[2][2] + in1[0][3] * in2[3][2];
out[0][3] = in1[0][0] * in2[0][3] + in1[0][1] * in2[1][3] + in1[0][2] * in2[2][3] + in1[0][3] * in2[3][3];
out[1][0] = in1[1][0] * in2[0][0] + in1[1][1] * in2[1][0] + in1[1][2] * in2[2][0] + in1[1][3] * in2[3][0];
out[1][1] = in1[1][0] * in2[0][1] + in1[1][1] * in2[1][1] + in1[1][2] * in2[2][1] + in1[1][3] * in2[3][1];
out[1][2] = in1[1][0] * in2[0][2] + in1[1][1] * in2[1][2] + in1[1][2] * in2[2][2] + in1[1][3] * in2[3][2];
out[1][3] = in1[1][0] * in2[0][3] + in1[1][1] * in2[1][3] + in1[1][2] * in2[2][3] + in1[1][3] * in2[3][3];
out[2][0] = in1[2][0] * in2[0][0] + in1[2][1] * in2[1][0] + in1[2][2] * in2[2][0] + in1[2][3] * in2[3][0];
out[2][1] = in1[2][0] * in2[0][1] + in1[2][1] * in2[1][1] + in1[2][2] * in2[2][1] + in1[2][3] * in2[3][1];
out[2][2] = in1[2][0] * in2[0][2] + in1[2][1] * in2[1][2] + in1[2][2] * in2[2][2] + in1[2][3] * in2[3][2];
out[2][3] = in1[2][0] * in2[0][3] + in1[2][1] * in2[1][3] + in1[2][2] * in2[2][3] + in1[2][3] * in2[3][3];
out[3][0] = in1[3][0] * in2[0][0] + in1[3][1] * in2[1][0] + in1[3][2] * in2[2][0] + in1[3][3] * in2[3][0];
out[3][1] = in1[3][0] * in2[0][1] + in1[3][1] * in2[1][1] + in1[3][2] * in2[2][1] + in1[3][3] * in2[3][1];
out[3][2] = in1[3][0] * in2[0][2] + in1[3][1] * in2[1][2] + in1[3][2] * in2[2][2] + in1[3][3] * in2[3][2];
out[3][3] = in1[3][0] * in2[0][3] + in1[3][1] * in2[1][3] + in1[3][2] * in2[2][3] + in1[3][3] * in2[3][3];
#endif
}
_inline bool Matrix4x4_CompareRotateOnly( const matrix4x4 mat1, const matrix4x4 mat2 )
{
#ifdef OPENGL_STYLE
if( mat1[0][0] != mat2[0][0] || mat1[0][1] != mat2[0][1] || mat1[0][2] != mat2[0][2] )
return false;
if( mat1[1][0] != mat2[1][0] || mat1[1][1] != mat2[1][1] || mat1[1][2] != mat2[1][2] )
return false;
if( mat1[2][0] != mat2[2][0] || mat1[2][1] != mat2[2][1] || mat1[2][2] != mat2[2][2] )
return false;
#else
if( mat1[0][0] != mat2[0][0] || mat1[1][0] != mat2[1][0] || mat1[2][0] != mat2[2][0] )
return false;
if( mat1[0][1] != mat2[0][1] || mat1[1][1] != mat2[1][1] || mat1[2][1] != mat2[2][1] )
return false;
if( mat1[0][2] != mat2[0][2] || mat1[1][2] != mat2[1][2] || mat1[2][2] != mat2[2][2] )
return false;
#endif
return true;
}
_inline bool Matrix4x4_Compare( const matrix4x4 mat1, const matrix4x4 mat2 )
{
#ifdef OPENGL_STYLE
if( mat1[0][0] != mat2[0][0] || mat1[0][1] != mat2[0][1] || mat1[0][2] != mat2[0][2] )
return false;
if( mat1[1][0] != mat2[1][0] || mat1[1][1] != mat2[1][1] || mat1[1][2] != mat2[1][2] )
return false;
if( mat1[2][0] != mat2[2][0] || mat1[2][1] != mat2[2][1] || mat1[2][2] != mat2[2][2] )
return false;
if( mat1[3][0] != mat2[3][0] || mat1[3][1] != mat2[3][1] || mat1[3][2] != mat2[3][2] )
return false;
#else
if( mat1[0][0] != mat2[0][0] || mat1[1][0] != mat2[1][0] || mat1[2][0] != mat2[2][0] )
return false;
if( mat1[0][1] != mat2[0][1] || mat1[1][1] != mat2[1][1] || mat1[2][1] != mat2[2][1] )
return false;
if( mat1[0][2] != mat2[0][2] || mat1[1][2] != mat2[1][2] || mat1[2][2] != mat2[2][2] )
return false;
if( mat1[0][3] != mat2[0][3] || mat1[1][3] != mat2[1][3] || mat1[2][3] != mat2[2][3] )
return false;
#endif
return true;
}
_inline void Matrix4x4_FromVectors( matrix4x4 out, const float vx[3], const float vy[3], const float vz[3], const float t[3])
{
#ifdef OPENGL_STYLE
out[0][0] = vx[0];
out[1][0] = vy[0];
out[2][0] = vz[0];
out[3][0] = t[0];
out[0][1] = vx[1];
out[1][1] = vy[1];
out[2][1] = vz[1];
out[3][1] = t[1];
out[0][2] = vx[2];
out[1][2] = vy[2];
out[2][2] = vz[2];
out[3][2] = t[2];
out[0][3] = 0.0f;
out[1][3] = 0.0f;
out[2][3] = 0.0f;
out[3][3] = 1.0f;
#else
out[0][0] = vx[0];
out[0][1] = vy[0];
out[0][2] = vz[0];
out[0][3] = t[0];
out[1][0] = vx[1];
out[1][1] = vy[1];
out[1][2] = vz[1];
out[1][3] = t[1];
out[2][0] = vx[2];
out[2][1] = vy[2];
out[2][2] = vz[2];
out[2][3] = t[2];
out[3][0] = 0.0f;
out[3][1] = 0.0f;
out[3][2] = 0.0f;
out[3][3] = 1.0f;
#endif
}
_inline void Matrix4x4_FromMatrix3x3( matrix4x4 out, const matrix3x3 in )
{
#ifdef OPENGL_STYLE
out[0][0] = in[0][0];
out[1][0] = in[1][0];
out[2][0] = in[2][0];
out[3][0] = 0.0f;
out[0][1] = in[0][1];
out[1][1] = in[1][1];
out[2][1] = in[2][1];
out[3][1] = 0.0f;
out[0][2] = in[0][2];
out[1][2] = in[1][2];
out[2][2] = in[2][2];
out[3][2] = 0.0f;
out[0][3] = 0.0f;
out[1][3] = 0.0f;
out[2][3] = 0.0f;
out[3][3] = 1.0f;
#else
out[0][0] = in[0][0];
out[0][1] = in[1][0];
out[0][2] = in[2][0];
out[0][3] = 0.0f;
out[1][0] = in[0][1];
out[1][1] = in[1][1];
out[1][2] = in[2][1];
out[1][3] = 0.0f;
out[2][0] = in[0][2];
out[2][1] = in[1][2];
out[2][2] = in[2][2];
out[2][3] = 0.0f;
out[3][0] = 0.0f;
out[3][1] = 0.0f;
out[3][2] = 0.0f;
out[3][3] = 1.0f;
#endif
}
/*
================
Matrix4x4_CreateModelview_FromAxis
NOTE: produce quake style world orientation
================
*/
_inline void Matrix4x4_CreateModelview_FromAxis( matrix4x4 out, float vx[3], float vy[3], float vz[3], float t[3] )
{
#ifdef OPENGL_STYLE
out[0][0] = -vy[0];
out[1][0] = -vy[1];
out[2][0] = -vy[2];
out[3][0] = t[0] * vy[0] + t[1] * vy[1]+ t[2] * vy[2];
out[0][1] = vz[0];
out[1][1] = vz[1];
out[2][1] = vz[2];
out[3][1] = -(t[0] * vz[0] + t[1] * vz[1]+ t[2] * vz[2]);
out[0][2] = -vx[0];
out[1][2] = -vx[1];
out[2][2] = -vx[2];
out[3][2] = t[0] * vx[0] + t[1] * vx[1]+ t[2] * vx[2];
out[0][3] = 0.0f;
out[1][3] = 0.0f;
out[2][3] = 0.0f;
out[3][3] = 1.0f;
#else
out[0][0] = -vy[0];
out[0][1] = -vy[1];
out[0][2] = -vy[2];
out[0][3] = t[0] * vy[0] + t[1] * vy[1]+ t[2] * vy[2];
out[1][0] = vz[0];
out[1][1] = vz[1];
out[1][2] = vz[2];
out[1][3] = -(t[0] * vz[0] + t[1] * vz[1]+ t[2] * vz[2]);
out[2][0] = -vx[0];
out[2][1] = -vx[1];
out[2][2] = -vx[2];
out[2][3] = t[0] * vx[0] + t[1] * vx[1]+ t[2] * vx[2];
out[3][0] = 0.0f;
out[3][1] = 0.0f;
out[3][2] = 0.0f;
out[3][3] = 1.0f;
#endif
}
_inline void Matrix4x4_ToArrayFloatGL( const matrix4x4 in, float out[16] )
{
#ifdef OPENGL_STYLE
out[ 0] = in[0][0];
out[ 1] = in[0][1];
out[ 2] = in[0][2];
out[ 3] = in[0][3];
out[ 4] = in[1][0];
out[ 5] = in[1][1];
out[ 6] = in[1][2];
out[ 7] = in[1][3];
out[ 8] = in[2][0];
out[ 9] = in[2][1];
out[10] = in[2][2];
out[11] = in[2][3];
out[12] = in[3][0];
out[13] = in[3][1];
out[14] = in[3][2];
out[15] = in[3][3];
#else
out[ 0] = in[0][0];
out[ 1] = in[1][0];
out[ 2] = in[2][0];
out[ 3] = in[3][0];
out[ 4] = in[0][1];
out[ 5] = in[1][1];
out[ 6] = in[2][1];
out[ 7] = in[3][1];
out[ 8] = in[0][2];
out[ 9] = in[1][2];
out[10] = in[2][2];
out[11] = in[3][2];
out[12] = in[0][3];
out[13] = in[1][3];
out[14] = in[2][3];
out[15] = in[3][3];
#endif
}
_inline void Matrix4x4_FromArrayFloatGL( matrix4x4 out, const float in[16] )
{
#ifdef OPENGL_STYLE
out[0][0] = in[0];
out[0][1] = in[1];
out[0][2] = in[2];
out[0][3] = in[3];
out[1][0] = in[4];
out[1][1] = in[5];
out[1][2] = in[6];
out[1][3] = in[7];
out[2][0] = in[8];
out[2][1] = in[9];
out[2][2] = in[10];
out[2][3] = in[11];
out[3][0] = in[12];
out[3][1] = in[13];
out[3][2] = in[14];
out[3][3] = in[15];
#else
out[0][0] = in[0];
out[1][0] = in[1];
out[2][0] = in[2];
out[3][0] = in[3];
out[0][1] = in[4];
out[1][1] = in[5];
out[2][1] = in[6];
out[3][1] = in[7];
out[0][2] = in[8];
out[1][2] = in[9];
out[2][2] = in[10];
out[3][2] = in[11];
out[0][3] = in[12];
out[1][3] = in[13];
out[2][3] = in[14];
out[3][3] = in[15];
#endif
}
_inline void Matrix4x4_FromArrayFloatD3D( matrix4x4 out, const float in[16] )
{
#ifdef OPENGL_STYLE
out[0][0] = in[0];
out[1][0] = in[1];
out[2][0] = in[2];
out[3][0] = in[3];
out[0][1] = in[4];
out[1][1] = in[5];
out[2][1] = in[6];
out[3][1] = in[7];
out[0][2] = in[8];
out[1][2] = in[9];
out[2][2] = in[10];
out[3][2] = in[11];
out[0][3] = in[12];
out[1][3] = in[13];
out[2][3] = in[14];
out[3][3] = in[15];
#else
out[0][0] = in[0];
out[0][1] = in[1];
out[0][2] = in[2];
out[0][3] = in[3];
out[1][0] = in[4];
out[1][1] = in[5];
out[1][2] = in[6];
out[1][3] = in[7];
out[2][0] = in[8];
out[2][1] = in[9];
out[2][2] = in[10];
out[2][3] = in[11];
out[3][0] = in[12];
out[3][1] = in[13];
out[3][2] = in[14];
out[3][3] = in[15];
#endif
}
_inline void Matrix4x4_ToMatrix3x3( matrix3x3 out, const matrix4x4 in )
{
out[0][0] = in[0][0];
out[1][1] = in[1][1];
out[2][2] = in[2][2];
#ifdef OPENGL_STYLE
out[0][1] = in[1][0];
out[0][2] = in[1][0];
out[1][0] = in[0][1];
out[1][2] = in[2][1];
out[2][0] = in[0][2];
out[2][1] = in[1][2];
#else
out[0][1] = in[0][1];
out[0][2] = in[0][2];
out[1][0] = in[1][0];
out[1][2] = in[1][2];
out[2][0] = in[2][0];
out[2][1] = in[2][1];
#endif
}
_inline bool Matrix4x4_Invert_Full( matrix4x4 out, const matrix4x4 in1 )
{
float *temp;
float *r[4];
float rtemp[4][8];
float m[4];
float s;
r[0] = rtemp[0];
r[1] = rtemp[1];
r[2] = rtemp[2];
r[3] = rtemp[3];
#ifdef OPENGL_STYLE
r[0][0] = in1[0][0];
r[0][1] = in1[1][0];
r[0][2] = in1[2][0];
r[0][3] = in1[3][0];
r[0][4] = 1.0;
r[0][5] = 0.0;
r[0][6] = 0.0;
r[0][7] = 0.0;
r[1][0] = in1[0][1];
r[1][1] = in1[1][1];
r[1][2] = in1[2][1];
r[1][3] = in1[3][1];
r[1][5] = 1.0;
r[1][4] = 0.0;
r[1][6] = 0.0;
r[1][7] = 0.0;
r[2][0] = in1[0][2];
r[2][1] = in1[1][2];
r[2][2] = in1[2][2];
r[2][3] = in1[3][2];
r[2][6] = 1.0;
r[2][4] = 0.0;
r[2][5] = 0.0;
r[2][7] = 0.0;
r[3][0] = in1[0][3];
r[3][1] = in1[1][3];
r[3][2] = in1[2][3];
r[3][3] = in1[3][3];
r[3][4] = 0.0;
r[3][5] = 0.0;
r[3][6] = 0.0;
r[3][7] = 1.0;
#else
r[0][0] = in1[0][0];
r[0][1] = in1[0][1];
r[0][2] = in1[0][2];
r[0][3] = in1[0][3];
r[0][4] = 1.0;
r[0][5] = 0.0;
r[0][6] = 0.0;
r[0][7] = 0.0;
r[1][0] = in1[1][0];
r[1][1] = in1[1][1];
r[1][2] = in1[1][2];
r[1][3] = in1[1][3];
r[1][5] = 1.0;
r[1][4] = 0.0;
r[1][6] = 0.0;
r[1][7] = 0.0;
r[2][0] = in1[2][0];
r[2][1] = in1[2][1];
r[2][2] = in1[2][2];
r[2][3] = in1[2][3];
r[2][6] = 1.0;
r[2][4] = 0.0;
r[2][5] = 0.0;
r[2][7] = 0.0;
r[3][0] = in1[3][0];
r[3][1] = in1[3][1];
r[3][2] = in1[3][2];
r[3][3] = in1[3][3];
r[3][4] = 0.0;
r[3][5] = 0.0;
r[3][6] = 0.0;
r[3][7] = 1.0;
#endif
if( fabs( r[3][0] ) > fabs( r[2][0] ))
{
temp = r[3];
r[3] = r[2];
r[2] = temp;
}
if( fabs( r[2][0] ) > fabs( r[1][0] ))
{
temp = r[2];
r[2] = r[1];
r[1] = temp;
}
if( fabs( r[1][0] ) > fabs( r[0][0] ))
{
temp = r[1];
r[1] = r[0];
r[0] = temp;
}
if( r[0][0] )
{
m[1] = r[1][0] / r[0][0];
m[2] = r[2][0] / r[0][0];
m[3] = r[3][0] / r[0][0];
s = r[0][1];
r[1][1] -= m[1] * s;
r[2][1] -= m[2] * s;
r[3][1] -= m[3] * s;
s = r[0][2];
r[1][2] -= m[1] * s;
r[2][2] -= m[2] * s;
r[3][2] -= m[3] * s;
s = r[0][3];
r[1][3] -= m[1] * s;
r[2][3] -= m[2] * s;
r[3][3] -= m[3] * s;
s = r[0][4];
if( s )
{
r[1][4] -= m[1] * s;
r[2][4] -= m[2] * s;
r[3][4] -= m[3] * s;
}
s = r[0][5];
if( s )
{
r[1][5] -= m[1] * s;
r[2][5] -= m[2] * s;
r[3][5] -= m[3] * s;
}
s = r[0][6];
if( s )
{
r[1][6] -= m[1] * s;
r[2][6] -= m[2] * s;
r[3][6] -= m[3] * s;
}
s = r[0][7];
if( s )
{
r[1][7] -= m[1] * s;
r[2][7] -= m[2] * s;
r[3][7] -= m[3] * s;
}
if( fabs( r[3][1] ) > fabs( r[2][1] ))
{
temp = r[3];
r[3] = r[2];
r[2] = temp;
}
if( fabs( r[2][1] ) > fabs( r[1][1] ))
{
temp = r[2];
r[2] = r[1];
r[1] = temp;
}
if( r[1][1] )
{
m[2] = r[2][1] / r[1][1];
m[3] = r[3][1] / r[1][1];
r[2][2] -= m[2] * r[1][2];
r[3][2] -= m[3] * r[1][2];
r[2][3] -= m[2] * r[1][3];
r[3][3] -= m[3] * r[1][3];
s = r[1][4];
if( s )
{
r[2][4] -= m[2] * s;
r[3][4] -= m[3] * s;
}
s = r[1][5];
if( s )
{
r[2][5] -= m[2] * s;
r[3][5] -= m[3] * s;
}
s = r[1][6];
if( s )
{
r[2][6] -= m[2] * s;
r[3][6] -= m[3] * s;
}
s = r[1][7];
if( s )
{
r[2][7] -= m[2] * s;
r[3][7] -= m[3] * s;
}
if( fabs( r[3][2] ) > fabs( r[2][2] ))
{
temp = r[3];
r[3] = r[2];
r[2] = temp;
}
if( r[2][2] )
{
m[3] = r[3][2] / r[2][2];
r[3][3] -= m[3] * r[2][3];
r[3][4] -= m[3] * r[2][4];
r[3][5] -= m[3] * r[2][5];
r[3][6] -= m[3] * r[2][6];
r[3][7] -= m[3] * r[2][7];
if( r[3][3] )
{
s = 1.0 / r[3][3];
r[3][4] *= s;
r[3][5] *= s;
r[3][6] *= s;
r[3][7] *= s;
m[2] = r[2][3];
s = 1.0 / r[2][2];
r[2][4] = s * (r[2][4] - r[3][4] * m[2]);
r[2][5] = s * (r[2][5] - r[3][5] * m[2]);
r[2][6] = s * (r[2][6] - r[3][6] * m[2]);
r[2][7] = s * (r[2][7] - r[3][7] * m[2]);
m[1] = r[1][3];
r[1][4] -= r[3][4] * m[1];
r[1][5] -= r[3][5] * m[1];
r[1][6] -= r[3][6] * m[1];
r[1][7] -= r[3][7] * m[1];
m[0] = r[0][3];
r[0][4] -= r[3][4] * m[0];
r[0][5] -= r[3][5] * m[0];
r[0][6] -= r[3][6] * m[0];
r[0][7] -= r[3][7] * m[0];
m[1] = r[1][2];
s = 1.0 / r[1][1];
r[1][4] = s * (r[1][4] - r[2][4] * m[1]);
r[1][5] = s * (r[1][5] - r[2][5] * m[1]);
r[1][6] = s * (r[1][6] - r[2][6] * m[1]);
r[1][7] = s * (r[1][7] - r[2][7] * m[1]);
m[0] = r[0][2];
r[0][4] -= r[2][4] * m[0];
r[0][5] -= r[2][5] * m[0];
r[0][6] -= r[2][6] * m[0];
r[0][7] -= r[2][7] * m[0];
m[0] = r[0][1];
s = 1.0 / r[0][0];
r[0][4] = s * (r[0][4] - r[1][4] * m[0]);
r[0][5] = s * (r[0][5] - r[1][5] * m[0]);
r[0][6] = s * (r[0][6] - r[1][6] * m[0]);
r[0][7] = s * (r[0][7] - r[1][7] * m[0]);
#ifdef OPENGL_STYLE
out[0][0] = r[0][4];
out[0][1] = r[1][4];
out[0][2] = r[2][4];
out[0][3] = r[3][4];
out[1][0] = r[0][5];
out[1][1] = r[1][5];
out[1][2] = r[2][5];
out[1][3] = r[3][5];
out[2][0] = r[0][6];
out[2][1] = r[1][6];
out[2][2] = r[2][6];
out[2][3] = r[3][6];
out[3][0] = r[0][7];
out[3][1] = r[1][7];
out[3][2] = r[2][7];
out[3][3] = r[3][7];
#else
out[0][0] = r[0][4];
out[0][1] = r[0][5];
out[0][2] = r[0][6];
out[0][3] = r[0][7];
out[1][0] = r[1][4];
out[1][1] = r[1][5];
out[1][2] = r[1][6];
out[1][3] = r[1][7];
out[2][0] = r[2][4];
out[2][1] = r[2][5];
out[2][2] = r[2][6];
out[2][3] = r[2][7];
out[3][0] = r[3][4];
out[3][1] = r[3][5];
out[3][2] = r[3][6];
out[3][3] = r[3][7];
#endif
return true;
}
}
}
}
return false;
}
_inline void Matrix4x4_Transpose( matrix4x4 out, const matrix4x4 in1 )
{
out[0][0] = in1[0][0];
out[0][1] = in1[1][0];
out[0][2] = in1[2][0];
out[0][3] = in1[3][0];
out[1][0] = in1[0][1];
out[1][1] = in1[1][1];
out[1][2] = in1[2][1];
out[1][3] = in1[3][1];
out[2][0] = in1[0][2];
out[2][1] = in1[1][2];
out[2][2] = in1[2][2];
out[2][3] = in1[3][2];
out[3][0] = in1[0][3];
out[3][1] = in1[1][3];
out[3][2] = in1[2][3];
out[3][3] = in1[3][3];
}
_inline void Matrix4x4_SetOrigin( matrix4x4 out, double x, double y, double z )
{
#ifdef OPENGL_STYLE
out[3][0] = x;
out[3][1] = y;
out[3][2] = z;
#else
out[0][3] = x;
out[1][3] = y;
out[2][3] = z;
#endif
}
_inline void Matrix4x4_OriginFromMatrix( const matrix4x4 in, float *out )
{
#ifdef OPENGL_STYLE
out[0] = in[3][0];
out[1] = in[3][1];
out[2] = in[3][2];
#else
out[0] = in[0][3];
out[1] = in[1][3];
out[2] = in[2][3];
#endif
}
_inline void Matrix4x4_Copy2D( matrix4x4 out, const matrix4x4 in )
{
out[0][0] = in[0][0];
out[1][1] = in[1][1];
out[0][1] = in[0][1];
out[1][0] = in[1][0];
out[3][0] = in[3][0];
out[3][1] = in[3][1];
}
_inline void Matrix4x4_Concat2D( matrix4x4 out, const matrix4x4 in1, const matrix4x4 in2 )
{
#ifdef OPENGL_STYLE
out[0][0] = in1[0][0] * in2[0][0] + in1[1][0] * in2[0][1];
out[0][1] = in1[0][1] * in2[0][0] + in1[1][1] * in2[0][1];
out[1][0] = in1[0][0] * in2[1][0] + in1[1][0] * in2[1][1];
out[1][1] = in1[0][1] * in2[1][0] + in1[1][1] * in2[1][1];
out[3][0] = in1[0][0] * in2[3][0] + in1[1][0] * in2[3][1] + in1[3][0];
out[3][1] = in1[0][1] * in2[3][0] + in1[1][1] * in2[3][1] + in1[3][1];
#else
out[0][0] = in1[0][0] * in2[0][0] + in1[0][1] * in2[1][0];
out[1][0] = in1[1][0] * in2[0][0] + in1[1][1] * in2[1][0];
out[0][1] = in1[0][0] * in2[0][1] + in1[0][1] * in2[1][1];
out[1][1] = in1[1][0] * in2[0][1] + in1[1][1] * in2[1][1];
out[0][3] = in1[0][0] * in2[0][3] + in1[0][1] * in2[1][3] + in1[0][3];
out[1][3] = in1[1][0] * in2[0][3] + in1[1][1] * in2[1][3] + in1[1][3];
#endif
}
_inline void Matrix4x4_Scale2D( matrix4x4 out, vec_t x, vec_t y )
{
out[0][0] *= x;
out[1][1] *= y;
#ifdef OPENGL_STYLE
out[0][1] *= x;
out[1][0] *= y;
#else
out[1][0] *= x;
out[0][1] *= y;
#endif
}
_inline void Matrix4x4_Translate2D( matrix4x4 out, vec_t x, vec_t y )
{
#ifdef OPENGL_STYLE
out[3][0] += x;
out[3][1] += y;
#else
out[0][3] += x;
out[1][3] += y;
#endif
}
_inline void Matrix4x4_Stretch2D( matrix4x4 out, vec_t s, vec_t t )
{
out[0][0] *= s;
out[1][1] *= s;
#ifdef OPENGL_STYLE
out[0][1] *= s;
out[1][0] *= s;
out[3][0] = s * out[3][0] + t;
out[3][1] = s * out[3][1] + t;
#else
out[1][0] *= s;
out[0][1] *= s;
out[0][3] = s * out[0][3] + t;
out[1][3] = s * out[1][3] + t;
#endif
}
_inline void Matrix4x4_ConcatScale( matrix4x4 out, double x )
{
matrix4x4 base, temp;
Matrix4x4_Copy( base, out );
Matrix4x4_CreateScale( temp, x );
Matrix4x4_Concat( out, base, temp );
}
_inline void Matrix4x4_ConcatTranslate( matrix4x4 out, double x, double y, double z )
{
matrix4x4 base, temp;
Matrix4x4_Copy( base, out );
Matrix4x4_CreateTranslate( temp, x, y, z );
Matrix4x4_Concat( out, base, temp );
}
_inline void Matrix4x4_ConcatRotate( matrix4x4 out, double angle, double x, double y, double z )
{
matrix4x4 base, temp;
Matrix4x4_Copy( base, out );
Matrix4x4_CreateRotate( temp, angle, x, y, z );
Matrix4x4_Concat( out, base, temp );
}
_inline void Matrix4x4_ConcatScale3( matrix4x4 out, double x, double y, double z )
{
matrix4x4 base, temp;
Matrix4x4_Copy( base, out );
Matrix4x4_CreateScale3( temp, x, y, z );
Matrix4x4_Concat( out, base, temp );
}
_inline void Matrix4x4_Pivot( matrix4x4 m, const vec3_t org, const vec3_t ang, const vec3_t scale, const vec3_t pivot )
{
vec3_t temp;
VectorAdd( pivot, org, temp );
Matrix4x4_LoadIdentity( m );
Matrix4x4_ConcatTranslate( m, temp[0], temp[1], temp[2] );
Matrix4x4_ConcatRotate( m, ang[0], 1, 0, 0 );
Matrix4x4_ConcatRotate( m, ang[1], 0, 1, 0 );
Matrix4x4_ConcatRotate( m, ang[2], 0, 0, 1 );
Matrix4x4_ConcatScale3( m, scale[0], scale[1], scale[2] );
VectorNegate( pivot, temp );
Matrix4x4_ConcatTranslate( m, temp[0], temp[1], temp[2] );
}
#endif//MATRIX_LIB_H