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ma3 swap rows/columns

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This commit is contained in:
Recep Aslantas
2016-10-16 20:45:58 +03:00
parent bb3067ebfb
commit f4b0d2bdde
2 changed files with 41 additions and 1 deletions
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2
include/cglm-mat.h
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@@ -482,7 +482,7 @@ glm_mat4_swap_row(mat4 mat, int row1, int row2) {
mat[0][row2] = tmp[0]; mat[0][row2] = tmp[0];
mat[1][row2] = tmp[1]; mat[1][row2] = tmp[1];
mat[2][row2] = tmp[2];; mat[2][row2] = tmp[2];
mat[3][row2] = tmp[3]; mat[3][row2] = tmp[3];
} }

40
include/cglm-mat3.h
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@@ -206,4 +206,44 @@ glm_mat3_inv(mat3 mat, mat3 dest) {
glm_mat3_scale(dest, det); glm_mat3_scale(dest, det);
} }
/*!
* @brief swap two matrix columns
*
* @param[in,out] mat matrix
* @param[in] col1 col1
* @param[in] col2 col2
*/
CGLM_INLINE
void
glm_mat3_swap_col(mat3 mat, int col1, int col2) {
vec3 tmp;
glm_vec_dup(mat[col1], tmp);
glm_vec_dup(mat[col2], mat[col1]);
glm_vec_dup(tmp, mat[col2]);
}
/*!
* @brief swap two matrix rows
*
* @param[in,out] mat matrix
* @param[in] col1 col1
* @param[in] col2 col2
*/
CGLM_INLINE
void
glm_mat3_swap_row(mat3 mat, int row1, int row2) {
vec3 tmp;
tmp[0] = mat[0][row1];
tmp[1] = mat[1][row1];
tmp[2] = mat[2][row1];
mat[0][row1] = mat[0][row2];
mat[1][row1] = mat[1][row2];
mat[2][row1] = mat[2][row2];
mat[0][row2] = tmp[0];
mat[1][row2] = tmp[1];
mat[2][row2] = tmp[2];
}
#endif /* cglm_mat3_h */ #endif /* cglm_mat3_h */