示例#1
0
文件： linop.c 项目： andrewcurtis/bart 
/**
 * Wrapper for calling forward operation using italgos.
 */
extern void linop_forward_iter(void* _o, float* _dst, const float* _src )
{
	struct linop_s* o = _o;
	complex float* dst = (complex float*) _dst;
	const complex float* src = (complex float*) _src;

	linop_forward_unchecked(o, dst, src);
}
示例#2
0
void fd_proj_noninc(const struct linop_s* o, complex float* optr, const complex float* iptr)
{
	struct fdiff_s* data = (struct fdiff_s*)linop_get_data(o);	// FIXME: CAST?
	
	dump_cfl("impre", data->D, data->dims, iptr);

	complex float* tmp2 = md_alloc_sameplace(data->D, data->dims, CFL_SIZE, optr);
	linop_forward_unchecked(o, tmp2, iptr);

	long tmpdim = data->dims[0];
	long dims2[data->D];
	md_select_dims(data->D, ~0u, dims2, data->dims);
	dims2[0] *= 2; 
	dump_cfl("dxpre", data->D, data->dims, tmp2);

	md_smin(data->D, dims2, (float*)optr, (float*)tmp2, 0.);

	// add back initial value
	dims2[0] = tmpdim;

	for (unsigned int i = 0; i < data->D; i++) {

		if (MD_IS_SET(data->flags, i)) {

			dims2[i] = 1;
			md_copy2(data->D, dims2, data->str, optr, data->str, tmp2, CFL_SIZE);
			break;
		}
	}

	dump_cfl("dxpost", data->D, data->dims, optr);
	linop_norm_inv_unchecked(o, 0., optr, optr);
	
	dump_cfl("impost", data->D, data->dims, optr);

	md_free(tmp2);
}
示例#3
0
文件： iter4.c 项目： hcmh/bart 
static void nlop_der_iter(iter_op_data* _o, float* _dst, const float* _src)
{
	const struct iter4_nlop_s* nlop = CAST_DOWN(iter4_nlop_s, _o);

	linop_forward_unchecked(nlop->nlop.derivative[0], (complex float*)_dst, (const complex float*)_src);
}