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Differential D16282 Diff 56895 source/blender/editors/space_view3d/view3d_iterators.cc

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source/blender/editors/space_view3d/view3d_iterators.cc

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#include "DNA_object_types.h" #include "DNA_object_types.h"
#include "DNA_scene_types.h" #include "DNA_scene_types.h"
#include "BLI_bitmap.h"
#include "BLI_math_geom.h" #include "BLI_math_geom.h"
#include "BLI_rect.h" #include "BLI_rect.h"
#include "BLI_utildefines.h" #include "BLI_utildefines.h"
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#include "ED_screen.h" #include "ED_screen.h"
#include "ED_view3d.h" #include "ED_view3d.h"
#include "MEM_guardedalloc.h"
/* -------------------------------------------------------------------- */ /* -------------------------------------------------------------------- */
/** \name Internal Clipping Utilities /** \name Internal Clipping Utilities
* \{ */ * \{ */
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int content_planes_len; int content_planes_len;
}; };
struct foreachScreenFace_userData { struct foreachScreenFaceCenter_userData {
void (*func)(void *userData, BMFace *efa, const float screen_co_b[2], int index); void (*func)(void *userData, BMFace *efa, const float screen_co_b[2], int index);
void *userData; void *userData;
ViewContext vc; ViewContext vc;
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/** \name Edit-Mesh: For Each Screen Face Center /** \name Edit-Mesh: For Each Screen Face Center
* \{ */ * \{ */
static void mesh_foreachScreenFace__mapFunc(void *userData, static void mesh_foreachScreenFaceCenter__mapFunc(void *userData,
int index, int index,
const float cent[3], const float cent[3],
const float /*no*/[3]) const float /*no*/[3])
{ {
foreachScreenFace_userData *data = static_cast<foreachScreenFace_userData *>(userData); foreachScreenFaceCenter_userData *data = static_cast<foreachScreenFaceCenter_userData *>(userData);
BMFace *efa = BM_face_at_index(data->vc.em->bm, index); BMFace *efa = BM_face_at_index(data->vc.em->bm, index);
if (UNLIKELY(BM_elem_flag_test(efa, BM_ELEM_HIDDEN))) { if (UNLIKELY(BM_elem_flag_test(efa, BM_ELEM_HIDDEN))) {
return; return;
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data->func(data->userData, efa, screen_co, index); data->func(data->userData, efa, screen_co, index);
} }
void mesh_foreachScreenFace( void mesh_foreachScreenFaceCenter(
ViewContext *vc, ViewContext *vc,
void (*func)(void *userData, BMFace *efa, const float screen_co_b[2], int index), void (*func)(void *userData, BMFace *efa, const float screen_co_b[2], int index),
void *userData, void *userData,
const eV3DProjTest clip_flag) const eV3DProjTest clip_flag)
{ {
BLI_assert((clip_flag & V3D_PROJ_TEST_CLIP_CONTENT) == 0); BLI_assert((clip_flag & V3D_PROJ_TEST_CLIP_CONTENT) == 0);
foreachScreenFace_userData data; foreachScreenFaceCenter_userData data;
Mesh *me = editbmesh_get_eval_cage_from_orig( Mesh *me = editbmesh_get_eval_cage_from_orig(
vc->depsgraph, vc->scene, vc->obedit, &CD_MASK_BAREMESH); vc->depsgraph, vc->scene, vc->obedit, &CD_MASK_BAREMESH);
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if (me->runtime->subsurf_face_dot_tags != nullptr) { if (me->runtime->subsurf_face_dot_tags != nullptr) {
BKE_mesh_foreach_mapped_subdiv_face_center( BKE_mesh_foreach_mapped_subdiv_face_center(
me, mesh_foreachScreenFace__mapFunc, &data, MESH_FOREACH_NOP); me, mesh_foreachScreenFaceCenter__mapFunc, &data, MESH_FOREACH_NOP);
} }
else { else {
BKE_mesh_foreach_mapped_face_center( BKE_mesh_foreach_mapped_face_center(
me, mesh_foreachScreenFace__mapFunc, &data, MESH_FOREACH_NOP); me, mesh_foreachScreenFaceCenter__mapFunc, &data, MESH_FOREACH_NOP);
}
}
/** \} */
/* -------------------------------------------------------------------- */
/** \name Edit-Mesh: For Each Screen Face Verts
* \{ */
void mesh_foreachScreenFaceVerts(ViewContext *vc,
void (*func)(void *userData,
struct BMFace *efa,
const float screen_co[][2],
int total_count,
rctf *screen_rect,
bool *face_hit),
void *userData,
const eV3DProjTest clip_flag)
{
ED_view3d_check_mats_rv3d(vc->rv3d);
BM_mesh_elem_table_ensure(vc->em->bm, BM_FACE);
BMFace *efa;
const BMesh *bm = vc->em->bm;
float temp_screen_co[2];
int total_length = 0;
float(*screen_coords)[2] = static_cast<float(*)[2]>(
MEM_mallocN(sizeof(float) * 2 * bm->totvert, __func__));
int face_screen_verts_size = 4;
float(*face_screen_verts)[2] = static_cast<float(*)[2]>(
MEM_mallocN(sizeof(int) * 2 * face_screen_verts_size, __func__));
/* This makes only sense on subdivided meshes.*/
BLI_bitmap *faces_visited;
int cage_index = BKE_modifiers_get_cage_index(vc->scene, vc->obedit, NULL, 1);
const bool cage_display = cage_index != -1;
if (cage_display) {
faces_visited = BLI_BITMAP_NEW((size_t)bm->totface, __func__);
}
/* Transform and store all visible verts into screen coords. */
for (int i = 0; i < bm->totvert; i++) {
BMVert *bmvert = BM_vert_at_index(vc->em->bm, i);
if (BM_elem_flag_test_bool(bmvert, BM_ELEM_HIDDEN)) {
continue;
}
if (ED_view3d_project_float_object(vc->region, bmvert->co, temp_screen_co, clip_flag) ==
V3D_PROJ_RET_OK) {
screen_coords[i][0] = temp_screen_co[0];
screen_coords[i][1] = temp_screen_co[1];
}
else {
screen_coords[i][0] = 0.0f;
screen_coords[i][1] = 0.0f;
}
}
const int *poly_index = static_cast<int *>(CustomData_get_layer(&bm->pdata, CD_ORIGINDEX));
const bool use_original_index = poly_index != 0;
rctf poly_rect_data;
rctf *poly_rect = &poly_rect_data;
bool face_hit = false;
/* Collect polygon verts and send off per poly callback. */
for (int i = 0; i < bm->totface; i++) {
int original_index = i;
if (use_original_index) {
original_index = *poly_index++;
if (original_index == ORIGINDEX_NONE) {
continue;
}
}
if (cage_display && BLI_BITMAP_TEST(faces_visited, original_index)) {
continue;
}
efa = BM_face_at_index(vc->em->bm, original_index);
if (!BM_elem_flag_test(efa, BM_ELEM_HIDDEN)) {
if (bm->totvert > face_screen_verts_size) {
face_screen_verts_size = bm->totvert;
MEM_freeN(face_screen_verts);
face_screen_verts = static_cast<float(*)[2]>(MEM_mallocN(sizeof(float) * 2 * face_screen_verts_size, __func__));
}
total_length = 0;
BLI_rctf_init_minmax(poly_rect);
bool skip = false;
BMLoop *l_first, *l_iter;
int j = 0;
l_iter = l_first = BM_FACE_FIRST_LOOP(efa);
do {
const int k = BM_elem_index_get(l_iter->v);
face_screen_verts[j][0] = screen_coords[k][0];
face_screen_verts[j][1] = screen_coords[k][1];
/* Ignore polygons with invalid screen coords.*/
if (face_screen_verts[j][0] == 0.0f && face_screen_verts[j][1] == 0.0f) {
skip = true;
break;
}
total_length++, j++;
BLI_rctf_do_minmax_v(poly_rect, screen_coords[k]);
} while ((l_iter = l_iter->next) != l_first);
if (skip) {
continue;
}
face_hit = false;
func(
userData, efa, (const float(*)[2])face_screen_verts, total_length, poly_rect, &face_hit);
if (cage_display && face_hit) {
BLI_BITMAP_ENABLE(faces_visited, original_index);
}
}
}
if (cage_display) {
MEM_freeN(faces_visited);
} }
MEM_freeN(screen_coords);
MEM_freeN(face_screen_verts);
} }
/** \} */ /** \} */
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