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/* SPDX-License-Identifier: GPL-2.0-or-later */
/** \file
* \ingroup bke
*/
#include "MEM_guardedalloc.h"
#include "BLI_utildefines.h"
#include "BLI_bitmap.h"
#include "BLI_ghash.h"
#include "BLI_index_range.hh"
#include "BLI_math.h"
#include "BLI_rand.h"
#include "BLI_span.hh"
#include "BLI_task.h"
#include "DNA_mesh_types.h"
#include "DNA_meshdata_types.h"
#include "BKE_attribute.h"
#include "BKE_ccg.h"
#include "BKE_mesh.h"
#include "BKE_mesh_mapping.h"
#include "BKE_paint.h"
#include "BKE_pbvh.h"
#include "BKE_subdiv_ccg.h"
#include "PIL_time.h"
#include "GPU_buffers.h"
#include "bmesh.h"
#include "atomic_ops.h"
#include "pbvh_intern.h"
#include <climits>
using blender::IndexRange;
namespace blender::bke {
template<typename Func>
inline void to_static_color_type(const eCustomDataType type, const Func &func)
{
switch (type) {
case CD_PROP_COLOR:
func(MPropCol());
break;
case CD_PROP_BYTE_COLOR:
func(MLoopCol());
break;
default:
BLI_assert_unreachable();
break;
}
}
template<typename T> void to_float(const T &src, float dst[4]);
template<> void to_float(const MLoopCol &src, float dst[4])
{
rgba_uchar_to_float(dst, reinterpret_cast<const unsigned char *>(&src));
srgb_to_linearrgb_v3_v3(dst, dst);
}
template<> void to_float(const MPropCol &src, float dst[4])
{
copy_v4_v4(dst, src.color);
}
template<typename T> void from_float(const float src[4], T &dst);
template<> void from_float(const float src[4], MLoopCol &dst)
{
float temp[4];
linearrgb_to_srgb_v3_v3(temp, src);
temp[3] = src[3];
rgba_float_to_uchar(reinterpret_cast<unsigned char *>(&dst), temp);
}
template<> void from_float(const float src[4], MPropCol &dst)
{
copy_v4_v4(dst.color, src);
}
template<typename T>
static void pbvh_vertex_color_get(const PBVH &pbvh, int vertex, float r_color[4])
{
if (pbvh.color_domain == ATTR_DOMAIN_CORNER) {
const MeshElemMap &melem = pbvh.pmap[vertex];
int count = 0;
zero_v4(r_color);
for (const int i_poly : Span(melem.indices, melem.count)) {
const MPoly &mp = pbvh.mpoly[i_poly];
Span<T> colors{static_cast<const T *>(pbvh.color_layer->data) + mp.loopstart, mp.totloop};
Span<MLoop> loops{pbvh.mloop + mp.loopstart, mp.totloop};
for (const int i_loop : IndexRange(mp.totloop)) {
if (loops[i_loop].v == vertex) {
float temp[4];
to_float(colors[i_loop], temp);
add_v4_v4(r_color, temp);
count++;
}
}
}
if (count) {
mul_v4_fl(r_color, 1.0f / (float)count);
}
}
else {
to_float(static_cast<T *>(pbvh.color_layer->data)[vertex], r_color);
}
}
template<typename T>
static void pbvh_vertex_color_set(PBVH &pbvh, int vertex, const float color[4])
{
if (pbvh.color_domain == ATTR_DOMAIN_CORNER) {
const MeshElemMap &melem = pbvh.pmap[vertex];
for (const int i_poly : Span(melem.indices, melem.count)) {
const MPoly &mp = pbvh.mpoly[i_poly];
MutableSpan<T> colors{static_cast<T *>(pbvh.color_layer->data) + mp.loopstart, mp.totloop};
Span<MLoop> loops{pbvh.mloop + mp.loopstart, mp.totloop};
for (const int i_loop : IndexRange(mp.totloop)) {
if (loops[i_loop].v == vertex) {
from_float(color, colors[i_loop]);
}
}
}
}
else {
from_float(color, static_cast<T *>(pbvh.color_layer->data)[vertex]);
}
}
} // namespace blender::bke
extern "C" {
void BKE_pbvh_vertex_color_get(const PBVH *pbvh, int vertex, float r_color[4])
{
blender::bke::to_static_color_type(eCustomDataType(pbvh->color_layer->type), [&](auto dummy) {
using T = decltype(dummy);
blender::bke::pbvh_vertex_color_get<T>(*pbvh, vertex, r_color);
});
}
void BKE_pbvh_vertex_color_set(PBVH *pbvh, int vertex, const float color[4])
{
blender::bke::to_static_color_type(eCustomDataType(pbvh->color_layer->type), [&](auto dummy) {
using T = decltype(dummy);
blender::bke::pbvh_vertex_color_set<T>(*pbvh, vertex, color);
});
}
void BKE_pbvh_swap_colors(PBVH *pbvh,
const int *indices,
const int indices_num,
float (*r_colors)[4])
{
blender::bke::to_static_color_type(eCustomDataType(pbvh->color_layer->type), [&](auto dummy) {
using T = decltype(dummy);
T *pbvh_colors = static_cast<T *>(pbvh->color_layer->data);
for (const int i : IndexRange(indices_num)) {
T temp = pbvh_colors[indices[i]];
blender::bke::from_float(r_colors[i], pbvh_colors[indices[i]]);
blender::bke::to_float(temp, r_colors[i]);
}
});
}
void BKE_pbvh_store_colors(PBVH *pbvh,
const int *indices,
const int indices_num,
float (*r_colors)[4])
{
blender::bke::to_static_color_type(eCustomDataType(pbvh->color_layer->type), [&](auto dummy) {
using T = decltype(dummy);
T *pbvh_colors = static_cast<T *>(pbvh->color_layer->data);
for (const int i : IndexRange(indices_num)) {
blender::bke::to_float(pbvh_colors[indices[i]], r_colors[i]);
}
});
}
void BKE_pbvh_store_colors_vertex(PBVH *pbvh,
const int *indices,
const int indices_num,
float (*r_colors)[4])
{
if (pbvh->color_domain == ATTR_DOMAIN_POINT) {
BKE_pbvh_store_colors(pbvh, indices, indices_num, r_colors);
}
else {
blender::bke::to_static_color_type(eCustomDataType(pbvh->color_layer->type), [&](auto dummy) {
using T = decltype(dummy);
for (const int i : IndexRange(indices_num)) {
blender::bke::pbvh_vertex_color_get<T>(*pbvh, indices[i], r_colors[i]);
}
});
}
}
}
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