diff options
Diffstat (limited to 'src/mesa/math/m_xform.c')
| -rw-r--r-- | src/mesa/math/m_xform.c | 21 |
1 files changed, 0 insertions, 21 deletions
diff --git a/src/mesa/math/m_xform.c b/src/mesa/math/m_xform.c index 4789a855d47..369f2c6e957 100644 --- a/src/mesa/math/m_xform.c +++ b/src/mesa/math/m_xform.c @@ -97,27 +97,6 @@ transform_func *_mesa_transform_tab[5]; /* - * Transform a 4-element row vector (1x4 matrix) by a 4x4 matrix. This - * function is used for transforming clipping plane equations and spotlight - * directions. - * Mathematically, u = v * m. - * Input: v - input vector - * m - transformation matrix - * Output: u - transformed vector - */ -void _mesa_transform_vector( GLfloat u[4], const GLfloat v[4], const GLfloat m[16] ) -{ - GLfloat v0=v[0], v1=v[1], v2=v[2], v3=v[3]; -#define M(row,col) m[row + col*4] - u[0] = v0 * M(0,0) + v1 * M(1,0) + v2 * M(2,0) + v3 * M(3,0); - u[1] = v0 * M(0,1) + v1 * M(1,1) + v2 * M(2,1) + v3 * M(3,1); - u[2] = v0 * M(0,2) + v1 * M(1,2) + v2 * M(2,2) + v3 * M(3,2); - u[3] = v0 * M(0,3) + v1 * M(1,3) + v2 * M(2,3) + v3 * M(3,3); -#undef M -} - - -/* * This is called only once. It initializes several tables with pointers * to optimized transformation functions. This is where we can test for * AMD 3Dnow! capability, Intel SSE, etc. and hook in the right code. |