| 17 | |
| 18 | template<typename T> |
| 19 | void diff1(Param<T> out, CParam<T> in, int const dim) { |
| 20 | af::dim4 dims = out.dims(); |
| 21 | // Bool for dimension |
| 22 | bool is_dim0 = dim == 0; |
| 23 | bool is_dim1 = dim == 1; |
| 24 | bool is_dim2 = dim == 2; |
| 25 | bool is_dim3 = dim == 3; |
| 26 | |
| 27 | T const* const inPtr = in.get(); |
| 28 | T* outPtr = out.get(); |
| 29 | |
| 30 | // TODO: Improve this |
| 31 | for (dim_t l = 0; l < dims[3]; l++) { |
| 32 | for (dim_t k = 0; k < dims[2]; k++) { |
| 33 | for (dim_t j = 0; j < dims[1]; j++) { |
| 34 | for (dim_t i = 0; i < dims[0]; i++) { |
| 35 | // Operation: out[index] = in[index + 1 * dim_size] - |
| 36 | // in[index] |
| 37 | int idx = getIdx(in.strides(), i, j, k, l); |
| 38 | int jdx = getIdx(in.strides(), i + is_dim0, j + is_dim1, |
| 39 | k + is_dim2, l + is_dim3); |
| 40 | int odx = getIdx(out.strides(), i, j, k, l); |
| 41 | outPtr[odx] = inPtr[jdx] - inPtr[idx]; |
| 42 | } |
| 43 | } |
| 44 | } |
| 45 | } |
| 46 | } |
| 47 | |
| 48 | template<typename T> |
| 49 | void diff2(Param<T> out, CParam<T> in, int const dim) { |