e955c94ed3
Listing the "Blender Foundation" as copyright holder implied the Blender Foundation holds copyright to files which may include work from many developers. While keeping copyright on headers makes sense for isolated libraries, Blender's own code may be refactored or moved between files in a way that makes the per file copyright holders less meaningful. Copyright references to the "Blender Foundation" have been replaced with "Blender Authors", with the exception of `./extern/` since these this contains libraries which are more isolated, any changed to license headers there can be handled on a case-by-case basis. Some directories in `./intern/` have also been excluded: - `./intern/cycles/` it's own `AUTHORS` file is planned. - `./intern/opensubdiv/`. An "AUTHORS" file has been added, using the chromium projects authors file as a template. Design task: #110784 Ref !110783.
51 lines
1.5 KiB
C
51 lines
1.5 KiB
C
/* SPDX-FileCopyrightText: 2023 Blender Authors
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
|
|
#pragma once
|
|
|
|
/** \file
|
|
* \ingroup bli
|
|
*/
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
struct MemArena;
|
|
|
|
/**
|
|
* A version of #BLI_polyfill_calc that uses a memory arena to avoid re-allocations.
|
|
*/
|
|
void BLI_polyfill_calc_arena(const float (*coords)[2],
|
|
unsigned int coords_num,
|
|
int coords_sign,
|
|
unsigned int (*r_tris)[3],
|
|
|
|
struct MemArena *arena);
|
|
|
|
/**
|
|
* Triangulates the given (convex or concave) simple polygon to a list of triangle vertices.
|
|
*
|
|
* \param coords: 2D coordinates describing vertices of the polygon,
|
|
* in either clockwise or counterclockwise order.
|
|
* \param coords_num: Total points in the array.
|
|
* \param coords_sign: Pass this when we know the sign in advance to avoid extra calculations.
|
|
*
|
|
* \param r_tris: This array is filled in with triangle indices in clockwise order.
|
|
* The length of the array must be `coords_num - 2`.
|
|
* Indices are guaranteed to be assigned to unique triangles, with valid indices,
|
|
* even in the case of degenerate input (self intersecting polygons, zero area ears... etc).
|
|
*/
|
|
void BLI_polyfill_calc(const float (*coords)[2],
|
|
unsigned int coords_num,
|
|
int coords_sign,
|
|
unsigned int (*r_tris)[3]);
|
|
|
|
/* default size of polyfill arena */
|
|
#define BLI_POLYFILL_ARENA_SIZE MEM_SIZE_OPTIMAL(1 << 14)
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|