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https://github.com/bherbruck/solidcraft.git
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jijinbei
31aae90d9b
The migration in #170 collapsed every run of blank lines in the 48 files it touched, including inside verbatim copies of upstream code (e.g. curve_curve_p3.cpp), so they no longer diffed cleanly against upstream. Restore exactly those 91 blank lines; nothing else changes. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
117 lines
3.7 KiB
C++
117 lines
3.7 KiB
C++
// SPDX-License-Identifier: Apache-2.0
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// difftest shim for unit `nlib.srf_tool_p4`.
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// Wraps N_SrfRemoveKnotsConstraints and N_MakeSrfsCompatibleUV
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// (upstream source/SMLib/src/NL_SrfTool.cpp).
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//
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// One entry point, sc_nlib_srf_tool_p4_eval(op, in, n_in, out, cap, out_len): `op`
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// selects the routine, `in` holds its inputs, `out` receives a flat record of
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// doubles: the status (0 = ok, else NL_ERROR.eno, cleared before the call; 1000 if
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// the flag was set without a number), then, on success only, the results.
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//
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// A surface in `in` is: n m p q, then (n+1)*(m+1) control points (x y z w,
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// row-major), n+p+2 u knots, m+q+2 v knots (storage = indices in use). Everything is
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// allocated on one NL_STACKS. The Rust wrapper validates every surface (valid clamped
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// knot vectors, degrees 1..=NL_MAXDEG) and the parameters, so upstream only touches
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// the storage it allocates.
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//
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// A surface is dumped as n m p q r s, the control points, the u and v knots.
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#include "sc_shim.h"
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#include <nurbs.h>
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#include <NL_Globals.h>
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#include <vector>
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#include "sc_nlib.h"
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using sc::dump_srf;
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using sc::nl_status;
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using sc::null_srf;
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using sc::read_srf;
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namespace
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{
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} // namespace
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// op 0 remove knots with constraints: surface, cu, cu u knots, cv, cv v knots,
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// tol dir inplace -> status, surface.
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// op 1 make compatible in u and v: count, count surfaces -> status, count surfaces.
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SC_EXPORT int32_t sc_nlib_srf_tool_p4_eval(int32_t op, const double* in, int64_t n_in, double* out, int64_t cap,
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int64_t* out_len)
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{
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(void)n_in;
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SC_TRY
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NL_STACKS S;
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N_InitNurbs(&S);
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std::vector<double> o;
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int64_t at = 0;
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int32_t rc = SC_OK;
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NL_FLAG err = NL_NO;
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switch (op)
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{
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case 0:
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{
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NL_SURFACE* sur = read_srf(in, &at, &S);
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if (sur == NULL)
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{
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rc = SC_ERR_ARG;
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break;
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}
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NL_INDEX cu = (NL_INDEX)in[at++];
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std::vector<NL_PARAMETER> uk(in + at, in + at + cu);
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at += cu;
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NL_INDEX cv = (NL_INDEX)in[at++];
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std::vector<NL_PARAMETER> vk(in + at, in + at + cv);
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at += cv;
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const double* prm = in + at;
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bool inplace = prm[2] != 0.0;
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NL_SURFACE* res = inplace ? sur : null_srf(&S);
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if (res == NULL)
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{
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rc = SC_ERR_ARG;
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break;
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}
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N_ErrClear();
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err = N_SrfRemoveKnotsConstraints(sur, cu > 0 ? uk.data() : NULL, cu - 1, cv > 0 ? vk.data() : NULL,
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cv - 1, prm[0], (NL_FLAG)prm[1], res, &S);
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o.push_back(nl_status(err));
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if (err == NL_NO)
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dump_srf(o, res);
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break;
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}
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case 1:
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{
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NL_INDEX cnt = (NL_INDEX)in[0];
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at = 1;
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std::vector<NL_SURFACE*> surs;
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for (NL_INDEX i = 0; i < cnt && rc == SC_OK; i++)
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{
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NL_SURFACE* s = read_srf(in, &at, &S);
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if (s == NULL)
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rc = SC_ERR_ARG;
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surs.push_back(s);
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}
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if (rc != SC_OK || cnt < 1)
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{
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rc = SC_ERR_ARG;
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break;
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}
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N_ErrClear();
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err = N_MakeSrfsCompatibleUV(surs.data(), cnt - 1, &S);
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o.push_back(nl_status(err));
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if (err == NL_NO)
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for (NL_SURFACE* s : surs)
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dump_srf(o, s);
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break;
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}
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default:
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rc = SC_ERR_ARG;
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}
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N_EndNurbs(&S);
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if (rc != SC_OK)
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return rc;
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return sc_copy_out(o.data(), (int64_t)o.size(), out, cap, out_len);
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SC_CATCH
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}
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