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/* SPDX-License-Identifier: GPL-2.0-or-later */
/** \file
* \ingroup edsculpt
*
* Intended for use by `paint_vertex.c` & `paint_vertex_color_ops.c`.
*/
#include "DNA_mesh_types.h"
#include "DNA_meshdata_types.h"
#include "DNA_object_types.h"
#include "BLI_math_base.h"
#include "BLI_math_color.h"
#include "IMB_colormanagement.h"
#include "IMB_imbuf.h"
#include "BKE_context.h"
#include "BKE_mesh.h"
#include "DEG_depsgraph.h"
#include "ED_mesh.h"
#include "paint_intern.h" /* own include */
#define EPS_SATURATION 0.0005f
bool ED_vpaint_color_transform(struct Object *ob,
VPaintTransform_Callback vpaint_tx_fn,
const void *user_data)
{
Mesh *me;
const MPoly *mp;
int i, j;
if (((me = BKE_mesh_from_object(ob)) == NULL) || (ED_mesh_color_ensure(me, NULL) == false)) {
return false;
}
const bool use_face_sel = (me->editflag & ME_EDIT_PAINT_FACE_SEL) != 0;
const bool use_vert_sel = (me->editflag & ME_EDIT_PAINT_VERT_SEL) != 0;
mp = me->mpoly;
for (i = 0; i < me->totpoly; i++, mp++) {
MLoopCol *lcol = me->mloopcol + mp->loopstart;
if (use_face_sel && !(mp->flag & ME_FACE_SEL)) {
continue;
}
j = 0;
do {
uint vidx = me->mloop[mp->loopstart + j].v;
if (!(use_vert_sel && !(me->mvert[vidx].flag & SELECT))) {
float col_mix[3];
rgb_uchar_to_float(col_mix, &lcol->r);
vpaint_tx_fn(col_mix, user_data, col_mix);
rgb_float_to_uchar(&lcol->r, col_mix);
}
lcol++;
j++;
} while (j < mp->totloop);
}
/* remove stale me->mcol, will be added later */
BKE_mesh_tessface_clear(me);
DEG_id_tag_update(&me->id, 0);
return true;
}
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