c1bc70b711
A lot of files were missing copyright field in the header and
the Blender Foundation contributed to them in a sense of bug
fixing and general maintenance.
This change makes it explicit that those files are at least
partially copyrighted by the Blender Foundation.
Note that this does not make it so the Blender Foundation is
the only holder of the copyright in those files, and developers
who do not have a signed contract with the foundation still
hold the copyright as well.
Another aspect of this change is using SPDX format for the
header. We already used it for the license specification,
and now we state it for the copyright as well, following the
FAQ:
https://reuse.software/faq/
112 lines
2.6 KiB
C
112 lines
2.6 KiB
C
/* SPDX-FileCopyrightText: 2023 Blender Foundation
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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/** \file
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* \ingroup pymathutils
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*/
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#include <Python.h>
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#include "mathutils.h"
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#include "mathutils_interpolate.h"
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#include "BLI_math.h"
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#include "BLI_utildefines.h"
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#ifndef MATH_STANDALONE /* define when building outside blender */
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# include "MEM_guardedalloc.h"
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#endif
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/*-------------------------DOC STRINGS ---------------------------*/
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PyDoc_STRVAR(M_Interpolate_doc, "The Blender interpolate module");
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/* ---------------------------------WEIGHT CALCULATION ----------------------- */
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#ifndef MATH_STANDALONE
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PyDoc_STRVAR(M_Interpolate_poly_3d_calc_doc,
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".. function:: poly_3d_calc(veclist, pt)\n"
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"\n"
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" Calculate barycentric weights for a point on a polygon.\n"
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"\n"
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" :arg veclist: list of vectors\n"
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" :arg pt: point"
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" :rtype: list of per-vector weights\n");
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static PyObject *M_Interpolate_poly_3d_calc(PyObject *UNUSED(self), PyObject *args)
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{
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float fp[3];
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float(*vecs)[3];
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Py_ssize_t len;
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PyObject *point, *veclist, *ret;
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int i;
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if (!PyArg_ParseTuple(args, "OO:poly_3d_calc", &veclist, &point)) {
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return NULL;
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}
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if (mathutils_array_parse(
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fp, 2, 3 | MU_ARRAY_ZERO, point, "pt must be a 2-3 dimensional vector") == -1)
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{
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return NULL;
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}
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len = mathutils_array_parse_alloc_v(((float **)&vecs), 3, veclist, __func__);
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if (len == -1) {
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return NULL;
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}
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if (len) {
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float *weights = MEM_mallocN(sizeof(float) * len, __func__);
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interp_weights_poly_v3(weights, vecs, len, fp);
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ret = PyList_New(len);
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for (i = 0; i < len; i++) {
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PyList_SET_ITEM(ret, i, PyFloat_FromDouble(weights[i]));
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}
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MEM_freeN(weights);
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PyMem_Free(vecs);
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}
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else {
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ret = PyList_New(0);
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}
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return ret;
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}
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#endif /* MATH_STANDALONE */
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static PyMethodDef M_Interpolate_methods[] = {
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#ifndef MATH_STANDALONE
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{"poly_3d_calc",
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(PyCFunction)M_Interpolate_poly_3d_calc,
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METH_VARARGS,
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M_Interpolate_poly_3d_calc_doc},
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#endif
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{NULL, NULL, 0, NULL},
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};
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static struct PyModuleDef M_Interpolate_module_def = {
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PyModuleDef_HEAD_INIT,
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/*m_name*/ "mathutils.interpolate",
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/*m_doc*/ M_Interpolate_doc,
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/*m_size*/ 0,
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/*m_methods*/ M_Interpolate_methods,
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/*m_slots*/ NULL,
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/*m_traverse*/ NULL,
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/*m_clear*/ NULL,
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/*m_free*/ NULL,
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};
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/*----------------------------MODULE INIT-------------------------*/
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PyMODINIT_FUNC PyInit_mathutils_interpolate(void)
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{
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PyObject *submodule = PyModule_Create(&M_Interpolate_module_def);
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return submodule;
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}
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