88 lines
2.1 KiB
C
88 lines
2.1 KiB
C
/* SPDX-FileCopyrightText: 2011-2022 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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#ifndef __DUALCON_H__
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#define __DUALCON_H__
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#ifdef WITH_CXX_GUARDEDALLOC
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# include "MEM_guardedalloc.h"
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef float (*DualConCo)[3];
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typedef unsigned int (*DualConTri)[3];
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typedef unsigned int *DualConLoop;
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typedef struct DualConInput {
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DualConLoop mloop;
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DualConCo co;
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int co_stride;
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int totco;
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DualConTri looptris;
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int tri_stride;
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int tottri;
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int loop_stride;
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float min[3], max[3];
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} DualConInput;
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/* callback for allocating memory for output */
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typedef void *(*DualConAllocOutput)(int totvert, int totquad);
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/* callback for adding a new vertex to the output */
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typedef void (*DualConAddVert)(void *output, const float co[3]);
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/* callback for adding a new quad to the output */
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typedef void (*DualConAddQuad)(void *output, const int vert_indices[4]);
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typedef enum {
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DUALCON_FLOOD_FILL = 1,
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} DualConFlags;
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typedef enum {
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/* blocky */
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DUALCON_CENTROID,
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/* smooth */
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DUALCON_MASS_POINT,
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/* keeps sharp edges */
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DUALCON_SHARP_FEATURES,
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} DualConMode;
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/* Usage:
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*
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* The three callback arguments are used for creating the output
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* mesh. The alloc_output callback takes the total number of vertices
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* and faces (quads) that will be in the output. It should allocate
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* and return a structure to hold the output mesh. The add_vert and
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* add_quad callbacks will then be called for each new vertex and
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* quad, and the callback should add the new mesh elements to the
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* structure.
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*/
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void *dualcon(const DualConInput *input_mesh,
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/* callbacks for output */
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DualConAllocOutput alloc_output,
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DualConAddVert add_vert,
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DualConAddQuad add_quad,
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/* flags and settings to control the remeshing
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* algorithm */
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DualConFlags flags,
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DualConMode mode,
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float threshold,
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float hermite_num,
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float scale,
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int depth);
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#ifdef __cplusplus
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}
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#endif
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#endif /* __DUALCON_H__ */
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