Mercurial > touhou
changeset 613:560b45a7d014
Don’t uselessly malloc() a matrix for multiply, the stack is here for that!
author | Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> |
---|---|
date | Sat, 28 Mar 2015 19:58:50 +0100 |
parents | 73f134f84c7f |
children | 2cf518129725 |
files | pytouhou/utils/matrix.pyx |
diffstat | 1 files changed, 3 insertions(+), 4 deletions(-) [+] |
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--- a/pytouhou/utils/matrix.pyx +++ b/pytouhou/utils/matrix.pyx @@ -36,18 +36,17 @@ cdef Matrix *new_identity() nogil: cdef void mul(Matrix *mat1, Matrix *mat2) nogil: cdef float *d3 + cdef Matrix out - out = <Matrix*> malloc(sizeof(Matrix)) d1 = <float*>mat1 d2 = <float*>mat2 - d3 = <float*>out + d3 = <float*>&out for i in range(4): for j in range(4): d3[4*i+j] = 0 for k in range(4): d3[4*i+j] += d1[4*i+k] * d2[4*k+j] - memcpy(mat1, out, sizeof(Matrix)) - free(out) + memcpy(mat1, &out, sizeof(Matrix)) cdef void flip(Matrix *mat) nogil: