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tornavis/source/blender/blenkernel/intern/subsurf_ccg.c

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/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* The Original Code is Copyright (C) 2005 Blender Foundation.
* All rights reserved.
*/
/** \file \ingroup bke
*/
#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
# ifdef __GNUC__
# pragma GCC diagnostic ignored "-Wvla"
# endif
# define USE_DYNSIZE
#endif
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <math.h>
#include <float.h>
#include "atomic_ops.h"
#include "MEM_guardedalloc.h"
#include "DNA_mesh_types.h"
#include "DNA_meshdata_types.h"
#include "DNA_modifier_types.h"
#include "DNA_object_types.h"
#include "DNA_scene_types.h"
#include "BLI_utildefines.h"
#include "BLI_bitmap.h"
#include "BLI_blenlib.h"
#include "BLI_edgehash.h"
#include "BLI_math.h"
#include "BLI_memarena.h"
#include "BLI_task.h"
#include "BLI_threads.h"
#include "BKE_pbvh.h"
#include "BKE_ccg.h"
#include "BKE_cdderivedmesh.h"
#include "BKE_mesh.h"
#include "BKE_mesh_mapping.h"
#include "BKE_modifier.h"
#include "BKE_multires.h"
#include "BKE_object.h"
#include "BKE_paint.h"
#include "BKE_scene.h"
#include "BKE_subsurf.h"
#ifndef USE_DYNSIZE
# include "BLI_array.h"
#endif
#include "CCGSubSurf.h"
#ifdef WITH_OPENSUBDIV
# include "opensubdiv_capi.h"
#endif
/* assumes MLoop's are laid out 4 for each poly, in order */
#define USE_LOOP_LAYOUT_FAST
static CCGDerivedMesh *getCCGDerivedMesh(CCGSubSurf *ss,
int drawInteriorEdges,
int useSubsurfUv,
DerivedMesh *dm,
bool use_gpu_backend);
static int ccgDM_use_grid_pbvh(CCGDerivedMesh *ccgdm);
///
static void *arena_alloc(CCGAllocatorHDL a, int numBytes)
{
return BLI_memarena_alloc(a, numBytes);
}
static void *arena_realloc(CCGAllocatorHDL a, void *ptr, int newSize, int oldSize)
{
void *p2 = BLI_memarena_alloc(a, newSize);
if (ptr) {
memcpy(p2, ptr, oldSize);
}
return p2;
}
static void arena_free(CCGAllocatorHDL UNUSED(a), void *UNUSED(ptr))
{
/* do nothing */
}
static void arena_release(CCGAllocatorHDL a)
{
BLI_memarena_free(a);
}
typedef enum {
CCG_USE_AGING = 1,
CCG_USE_ARENA = 2,
CCG_CALC_NORMALS = 4,
/* add an extra four bytes for a mask layer */
CCG_ALLOC_MASK = 8,
CCG_SIMPLE_SUBDIV = 16,
} CCGFlags;
static CCGSubSurf *_getSubSurf(CCGSubSurf *prevSS, int subdivLevels,
int numLayers, CCGFlags flags)
{
CCGMeshIFC ifc;
CCGSubSurf *ccgSS;
int useAging = !!(flags & CCG_USE_AGING);
int useArena = flags & CCG_USE_ARENA;
int normalOffset = 0;
/* (subdivLevels == 0) is not allowed */
subdivLevels = MAX2(subdivLevels, 1);
if (prevSS) {
int oldUseAging;
ccgSubSurf_getUseAgeCounts(prevSS, &oldUseAging, NULL, NULL, NULL);
if ((oldUseAging != useAging) ||
(ccgSubSurf_getSimpleSubdiv(prevSS) != !!(flags & CCG_SIMPLE_SUBDIV)))
{
ccgSubSurf_free(prevSS);
}
else {
ccgSubSurf_setSubdivisionLevels(prevSS, subdivLevels);
return prevSS;
}
}
if (useAging) {
ifc.vertUserSize = ifc.edgeUserSize = ifc.faceUserSize = 12;
}
else {
ifc.vertUserSize = ifc.edgeUserSize = ifc.faceUserSize = 8;
}
ifc.numLayers = numLayers;
ifc.vertDataSize = sizeof(float) * numLayers;
normalOffset += sizeof(float) * numLayers;
if (flags & CCG_CALC_NORMALS)
ifc.vertDataSize += sizeof(float) * 3;
if (flags & CCG_ALLOC_MASK)
ifc.vertDataSize += sizeof(float);
ifc.simpleSubdiv = !!(flags & CCG_SIMPLE_SUBDIV);
if (useArena) {
CCGAllocatorIFC allocatorIFC;
CCGAllocatorHDL allocator = BLI_memarena_new(MEM_SIZE_OPTIMAL(1 << 16), "subsurf arena");
allocatorIFC.alloc = arena_alloc;
allocatorIFC.realloc = arena_realloc;
allocatorIFC.free = arena_free;
allocatorIFC.release = arena_release;
ccgSS = ccgSubSurf_new(&ifc, subdivLevels, &allocatorIFC, allocator);
}
else {
ccgSS = ccgSubSurf_new(&ifc, subdivLevels, NULL, NULL);
}
if (useAging) {
ccgSubSurf_setUseAgeCounts(ccgSS, 1, 8, 8, 8);
}
if (flags & CCG_ALLOC_MASK) {
normalOffset += sizeof(float);
/* mask is allocated after regular layers */
ccgSubSurf_setAllocMask(ccgSS, 1, sizeof(float) * numLayers);
}
if (flags & CCG_CALC_NORMALS)
ccgSubSurf_setCalcVertexNormals(ccgSS, 1, normalOffset);
else
ccgSubSurf_setCalcVertexNormals(ccgSS, 0, 0);
return ccgSS;
}
static int getEdgeIndex(CCGSubSurf *ss, CCGEdge *e, int x, int edgeSize)
{
CCGVert *v0 = ccgSubSurf_getEdgeVert0(e);
CCGVert *v1 = ccgSubSurf_getEdgeVert1(e);
int v0idx = *((int *) ccgSubSurf_getVertUserData(ss, v0));
int v1idx = *((int *) ccgSubSurf_getVertUserData(ss, v1));
int edgeBase = *((int *) ccgSubSurf_getEdgeUserData(ss, e));
if (x == 0) {
return v0idx;
}
else if (x == edgeSize - 1) {
return v1idx;
}
else {
return edgeBase + x - 1;
}
}
static int getFaceIndex(CCGSubSurf *ss, CCGFace *f, int S, int x, int y, int edgeSize, int gridSize)
{
int faceBase = *((int *) ccgSubSurf_getFaceUserData(ss, f));
int numVerts = ccgSubSurf_getFaceNumVerts(f);
if (x == gridSize - 1 && y == gridSize - 1) {
CCGVert *v = ccgSubSurf_getFaceVert(f, S);
return *((int *) ccgSubSurf_getVertUserData(ss, v));
}
else if (x == gridSize - 1) {
CCGVert *v = ccgSubSurf_getFaceVert(f, S);
CCGEdge *e = ccgSubSurf_getFaceEdge(f, S);
int edgeBase = *((int *) ccgSubSurf_getEdgeUserData(ss, e));
if (v == ccgSubSurf_getEdgeVert0(e)) {
return edgeBase + (gridSize - 1 - y) - 1;
}
else {
return edgeBase + (edgeSize - 2 - 1) - ((gridSize - 1 - y) - 1);
}
}
else if (y == gridSize - 1) {
CCGVert *v = ccgSubSurf_getFaceVert(f, S);
CCGEdge *e = ccgSubSurf_getFaceEdge(f, (S + numVerts - 1) % numVerts);
int edgeBase = *((int *) ccgSubSurf_getEdgeUserData(ss, e));
if (v == ccgSubSurf_getEdgeVert0(e)) {
return edgeBase + (gridSize - 1 - x) - 1;
}
else {
return edgeBase + (edgeSize - 2 - 1) - ((gridSize - 1 - x) - 1);
}
}
else if (x == 0 && y == 0) {
return faceBase;
}
else if (x == 0) {
S = (S + numVerts - 1) % numVerts;
return faceBase + 1 + (gridSize - 2) * S + (y - 1);
}
else if (y == 0) {
return faceBase + 1 + (gridSize - 2) * S + (x - 1);
}
else {
return faceBase + 1 + (gridSize - 2) * numVerts + S * (gridSize - 2) * (gridSize - 2) + (y - 1) * (gridSize - 2) + (x - 1);
}
}
static void get_face_uv_map_vert(UvVertMap *vmap, struct MPoly *mpoly, struct MLoop *ml, int fi, CCGVertHDL *fverts)
{
UvMapVert *v, *nv;
int j, nverts = mpoly[fi].totloop;
for (j = 0; j < nverts; j++) {
for (nv = v = BKE_mesh_uv_vert_map_get_vert(vmap, ml[j].v); v; v = v->next) {
if (v->separate)
nv = v;
if (v->poly_index == fi)
break;
}
fverts[j] = POINTER_FROM_UINT(mpoly[nv->poly_index].loopstart + nv->loop_of_poly_index);
}
}
static int ss_sync_from_uv(CCGSubSurf *ss, CCGSubSurf *origss, DerivedMesh *dm, MLoopUV *mloopuv)
{
MPoly *mpoly = dm->getPolyArray(dm);
MLoop *mloop = dm->getLoopArray(dm);
int totvert = dm->getNumVerts(dm);
int totface = dm->getNumPolys(dm);
int i, seam;
UvMapVert *v;
UvVertMap *vmap;
float limit[2];
#ifndef USE_DYNSIZE
CCGVertHDL *fverts = NULL;
BLI_array_declare(fverts);
#endif
EdgeSet *eset;
float uv[3] = {0.0f, 0.0f, 0.0f}; /* only first 2 values are written into */
limit[0] = limit[1] = STD_UV_CONNECT_LIMIT;
/* previous behavior here is without accounting for winding, however this causes stretching in
* UV map in really simple cases with mirror + subsurf, see second part of T44530. Also, initially
* intention is to treat merged vertices from mirror modifier as seams.
* This fixes a very old regression (2.49 was correct here) */
vmap = BKE_mesh_uv_vert_map_create(mpoly, mloop, mloopuv, totface, totvert, limit, false, true);
if (!vmap)
return 0;
ccgSubSurf_initFullSync(ss);
/* create vertices */
for (i = 0; i < totvert; i++) {
if (!BKE_mesh_uv_vert_map_get_vert(vmap, i))
continue;
for (v = BKE_mesh_uv_vert_map_get_vert(vmap, i)->next; v; v = v->next)
if (v->separate)
break;
seam = (v != NULL);
for (v = BKE_mesh_uv_vert_map_get_vert(vmap, i); v; v = v->next) {
if (v->separate) {
CCGVert *ssv;
int loopid = mpoly[v->poly_index].loopstart + v->loop_of_poly_index;
CCGVertHDL vhdl = POINTER_FROM_INT(loopid);
copy_v2_v2(uv, mloopuv[loopid].uv);
ccgSubSurf_syncVert(ss, vhdl, uv, seam, &ssv);
}
}
}
/* create edges */
eset = BLI_edgeset_new_ex(__func__, BLI_EDGEHASH_SIZE_GUESS_FROM_POLYS(totface));
for (i = 0; i < totface; i++) {
MPoly *mp = &mpoly[i];
int nverts = mp->totloop;
int j, j_next;
CCGFace *origf = ccgSubSurf_getFace(origss, POINTER_FROM_INT(i));
/* unsigned int *fv = &mp->v1; */
MLoop *ml = mloop + mp->loopstart;
#ifdef USE_DYNSIZE
CCGVertHDL fverts[nverts];
#else
BLI_array_clear(fverts);
BLI_array_grow_items(fverts, nverts);
#endif
get_face_uv_map_vert(vmap, mpoly, ml, i, fverts);
for (j = 0, j_next = nverts - 1; j < nverts; j_next = j++) {
unsigned int v0 = POINTER_AS_UINT(fverts[j_next]);
unsigned int v1 = POINTER_AS_UINT(fverts[j]);
if (BLI_edgeset_add(eset, v0, v1)) {
CCGEdge *e, *orige = ccgSubSurf_getFaceEdge(origf, j_next);
CCGEdgeHDL ehdl = POINTER_FROM_INT(mp->loopstart + j_next);
float crease = ccgSubSurf_getEdgeCrease(orige);
ccgSubSurf_syncEdge(ss, ehdl, fverts[j_next], fverts[j], crease, &e);
}
}
}
BLI_edgeset_free(eset);
/* create faces */
for (i = 0; i < totface; i++) {
MPoly *mp = &mpoly[i];
MLoop *ml = &mloop[mp->loopstart];
int nverts = mp->totloop;
CCGFace *f;
#ifdef USE_DYNSIZE
CCGVertHDL fverts[nverts];
#else
BLI_array_clear(fverts);
BLI_array_grow_items(fverts, nverts);
#endif
get_face_uv_map_vert(vmap, mpoly, ml, i, fverts);
ccgSubSurf_syncFace(ss, POINTER_FROM_INT(i), nverts, fverts, &f);
}
#ifndef USE_DYNSIZE
BLI_array_free(fverts);
#endif
BKE_mesh_uv_vert_map_free(vmap);
ccgSubSurf_processSync(ss);
return 1;
}
#ifdef WITH_OPENSUBDIV
static void UNUSED_FUNCTION(set_subsurf_osd_ccg_uv)(CCGSubSurf *ss,
DerivedMesh *dm,
DerivedMesh *result,
int layer_index)
{
CCGFace **faceMap;
MTFace *tf;
MLoopUV *mluv;
CCGFaceIterator fi;
int index, gridSize, gridFaces, totface, x, y, S;
MLoopUV *dmloopuv = CustomData_get_layer_n(&dm->loopData, CD_MLOOPUV, layer_index);
/* need to update both CD_MTFACE & CD_MLOOPUV, hrmf, we could get away with
* just tface except applying the modifier then looses subsurf UV */
MTFace *tface = CustomData_get_layer_n(&result->faceData, CD_MTFACE, layer_index);
MLoopUV *mloopuv = CustomData_get_layer_n(&result->loopData, CD_MLOOPUV, layer_index);
if (dmloopuv == NULL || (tface == NULL && mloopuv == NULL)) {
return;
}
ccgSubSurf_evaluatorSetFVarUV(ss, dm, layer_index);
/* get some info from CCGSubSurf */
totface = ccgSubSurf_getNumFaces(ss);
gridSize = ccgSubSurf_getGridSize(ss);
gridFaces = gridSize - 1;
/* make a map from original faces to CCGFaces */
faceMap = MEM_mallocN(totface * sizeof(*faceMap), "facemapuv");
for (ccgSubSurf_initFaceIterator(ss, &fi); !ccgFaceIterator_isStopped(&fi); ccgFaceIterator_next(&fi)) {
CCGFace *f = ccgFaceIterator_getCurrent(&fi);
faceMap[POINTER_AS_INT(ccgSubSurf_getFaceFaceHandle(f))] = f;
}
/* load coordinates from uvss into tface */
tf = tface;
mluv = mloopuv;
for (index = 0; index < totface; index++) {
CCGFace *f = faceMap[index];
int numVerts = ccgSubSurf_getFaceNumVerts(f);
for (S = 0; S < numVerts; S++) {
for (y = 0; y < gridFaces; y++) {
for (x = 0; x < gridFaces; x++) {
const int delta[4][2] = {{0, 0},
{0, 1},
{1, 1},
{1, 0}};
float uv[4][2];
int i;
for (i = 0; i < 4; i++) {
const int dx = delta[i][0],
dy = delta[i][1];
const float grid_u = ((float)(x + dx)) / (gridSize - 1),
grid_v = ((float)(y + dy)) / (gridSize - 1);
ccgSubSurf_evaluatorFVarUV(ss,
index,
S,
grid_u, grid_v,
uv[i]);
}
if (tf) {
copy_v2_v2(tf->uv[0], uv[0]);
copy_v2_v2(tf->uv[1], uv[1]);
copy_v2_v2(tf->uv[2], uv[2]);
copy_v2_v2(tf->uv[3], uv[3]);
tf++;
}
if (mluv) {
copy_v2_v2(mluv[0].uv, uv[0]);
copy_v2_v2(mluv[1].uv, uv[1]);
copy_v2_v2(mluv[2].uv, uv[2]);
copy_v2_v2(mluv[3].uv, uv[3]);
mluv += 4;
}
}
}
}
}
MEM_freeN(faceMap);
}
#endif /* WITH_OPENSUBDIV */
static void set_subsurf_legacy_uv(CCGSubSurf *ss, DerivedMesh *dm, DerivedMesh *result, int n)
{
CCGSubSurf *uvss;
CCGFace **faceMap;
MTFace *tf;
MLoopUV *mluv;
CCGFaceIterator fi;
int index, gridSize, gridFaces, /*edgeSize,*/ totface, x, y, S;
MLoopUV *dmloopuv = CustomData_get_layer_n(&dm->loopData, CD_MLOOPUV, n);
/* need to update both CD_MTFACE & CD_MLOOPUV, hrmf, we could get away with
* just tface except applying the modifier then looses subsurf UV */
MTFace *tface = CustomData_get_layer_n(&result->faceData, CD_MTFACE, n);
MLoopUV *mloopuv = CustomData_get_layer_n(&result->loopData, CD_MLOOPUV, n);
if (!dmloopuv || (!tface && !mloopuv))
return;
/* create a CCGSubSurf from uv's */
uvss = _getSubSurf(NULL, ccgSubSurf_getSubdivisionLevels(ss), 2, CCG_USE_ARENA);
if (!ss_sync_from_uv(uvss, ss, dm, dmloopuv)) {
ccgSubSurf_free(uvss);
return;
}
/* get some info from CCGSubSurf */
totface = ccgSubSurf_getNumFaces(uvss);
/* edgeSize = ccgSubSurf_getEdgeSize(uvss); */ /*UNUSED*/
gridSize = ccgSubSurf_getGridSize(uvss);
gridFaces = gridSize - 1;
/* make a map from original faces to CCGFaces */
faceMap = MEM_mallocN(totface * sizeof(*faceMap), "facemapuv");
for (ccgSubSurf_initFaceIterator(uvss, &fi); !ccgFaceIterator_isStopped(&fi); ccgFaceIterator_next(&fi)) {
CCGFace *f = ccgFaceIterator_getCurrent(&fi);
faceMap[POINTER_AS_INT(ccgSubSurf_getFaceFaceHandle(f))] = f;
}
/* load coordinates from uvss into tface */
tf = tface;
mluv = mloopuv;
for (index = 0; index < totface; index++) {
CCGFace *f = faceMap[index];
int numVerts = ccgSubSurf_getFaceNumVerts(f);
for (S = 0; S < numVerts; S++) {
float (*faceGridData)[2] = ccgSubSurf_getFaceGridDataArray(uvss, f, S);
for (y = 0; y < gridFaces; y++) {
for (x = 0; x < gridFaces; x++) {
float *a = faceGridData[(y + 0) * gridSize + x + 0];
float *b = faceGridData[(y + 0) * gridSize + x + 1];
float *c = faceGridData[(y + 1) * gridSize + x + 1];
float *d = faceGridData[(y + 1) * gridSize + x + 0];
if (tf) {
copy_v2_v2(tf->uv[0], a);
copy_v2_v2(tf->uv[1], d);
copy_v2_v2(tf->uv[2], c);
copy_v2_v2(tf->uv[3], b);
tf++;
}
if (mluv) {
copy_v2_v2(mluv[0].uv, a);
copy_v2_v2(mluv[1].uv, d);
copy_v2_v2(mluv[2].uv, c);
copy_v2_v2(mluv[3].uv, b);
mluv += 4;
}
}
}
}
}
ccgSubSurf_free(uvss);
MEM_freeN(faceMap);
}
static void set_subsurf_uv(CCGSubSurf *ss,
DerivedMesh *dm,
DerivedMesh *result,
int layer_index)
{
#ifdef WITH_OPENSUBDIV
if (!ccgSubSurf_needGrids(ss)) {
/* GPU backend is used, no need to evaluate UVs on CPU. */
/* TODO(sergey): Think of how to support edit mode of UVs. */
}
else
#endif
{
set_subsurf_legacy_uv(ss, dm, result, layer_index);
}
}
/* face weighting */
typedef struct FaceVertWeightEntry {
FaceVertWeight *weight;
float *w;
int valid;
} FaceVertWeightEntry;
typedef struct WeightTable {
FaceVertWeightEntry *weight_table;
int len;
} WeightTable;
static float *get_ss_weights(WeightTable *wtable, int gridCuts, int faceLen)
{
int x, y, i, j;
float *w, w1, w2, w4, fac, fac2, fx, fy;
if (wtable->len <= faceLen) {
void *tmp = MEM_callocN(sizeof(FaceVertWeightEntry) * (faceLen + 1), "weight table alloc 2");
if (wtable->len) {
memcpy(tmp, wtable->weight_table, sizeof(FaceVertWeightEntry) * wtable->len);
MEM_freeN(wtable->weight_table);
}
wtable->weight_table = tmp;
wtable->len = faceLen + 1;
}
if (!wtable->weight_table[faceLen].valid) {
wtable->weight_table[faceLen].valid = 1;
wtable->weight_table[faceLen].w = w = MEM_callocN(sizeof(float) * faceLen * faceLen * (gridCuts + 2) * (gridCuts + 2), "weight table alloc");
fac = 1.0f / (float)faceLen;
for (i = 0; i < faceLen; i++) {
for (x = 0; x < gridCuts + 2; x++) {
for (y = 0; y < gridCuts + 2; y++) {
fx = 0.5f - (float)x / (float)(gridCuts + 1) / 2.0f;
fy = 0.5f - (float)y / (float)(gridCuts + 1) / 2.0f;
fac2 = faceLen - 4;
w1 = (1.0f - fx) * (1.0f - fy) + (-fac2 * fx * fy * fac);
w2 = (1.0f - fx + fac2 * fx * -fac) * (fy);
w4 = (fx) * (1.0f - fy + -fac2 * fy * fac);
/* these values aren't used for tri's and cause divide by zero */
if (faceLen > 3) {
fac2 = 1.0f - (w1 + w2 + w4);
fac2 = fac2 / (float)(faceLen - 3);
for (j = 0; j < faceLen; j++) {
w[j] = fac2;
}
}
w[i] = w1;
w[(i - 1 + faceLen) % faceLen] = w2;
w[(i + 1) % faceLen] = w4;
w += faceLen;
}
}
}
}
return wtable->weight_table[faceLen].w;
}
static void free_ss_weights(WeightTable *wtable)
{
int i;
for (i = 0; i < wtable->len; i++) {
if (wtable->weight_table[i].valid)
MEM_freeN(wtable->weight_table[i].w);
}
if (wtable->weight_table)
MEM_freeN(wtable->weight_table);
}
static void ss_sync_ccg_from_derivedmesh(CCGSubSurf *ss,
DerivedMesh *dm,
float (*vertexCos)[3],
int useFlatSubdiv)
{
float creaseFactor = (float) ccgSubSurf_getSubdivisionLevels(ss);
#ifndef USE_DYNSIZE
CCGVertHDL *fVerts = NULL;
BLI_array_declare(fVerts);
#endif
MVert *mvert = dm->getVertArray(dm);
MEdge *medge = dm->getEdgeArray(dm);
/* MFace *mface = dm->getTessFaceArray(dm); */ /* UNUSED */
MVert *mv;
MEdge *me;
MLoop *mloop = dm->getLoopArray(dm), *ml;
MPoly *mpoly = dm->getPolyArray(dm), *mp;
/*MFace *mf;*/ /*UNUSED*/
int totvert = dm->getNumVerts(dm);
int totedge = dm->getNumEdges(dm);
/*int totface = dm->getNumTessFaces(dm);*/ /*UNUSED*/
/*int totpoly = dm->getNumFaces(dm);*/ /*UNUSED*/
int i, j;
int *index;
ccgSubSurf_initFullSync(ss);
mv = mvert;
index = (int *)dm->getVertDataArray(dm, CD_ORIGINDEX);
for (i = 0; i < totvert; i++, mv++) {
CCGVert *v;
if (vertexCos) {
ccgSubSurf_syncVert(ss, POINTER_FROM_INT(i), vertexCos[i], 0, &v);
}
else {
ccgSubSurf_syncVert(ss, POINTER_FROM_INT(i), mv->co, 0, &v);
}
((int *)ccgSubSurf_getVertUserData(ss, v))[1] = (index) ? *index++ : i;
}
me = medge;
index = (int *)dm->getEdgeDataArray(dm, CD_ORIGINDEX);
for (i = 0; i < totedge; i++, me++) {
CCGEdge *e;
float crease;
crease = useFlatSubdiv ? creaseFactor :
me->crease * creaseFactor / 255.0f;
ccgSubSurf_syncEdge(ss, POINTER_FROM_INT(i), POINTER_FROM_UINT(me->v1),
POINTER_FROM_UINT(me->v2), crease, &e);
((int *)ccgSubSurf_getEdgeUserData(ss, e))[1] = (index) ? *index++ : i;
}
mp = mpoly;
index = (int *)dm->getPolyDataArray(dm, CD_ORIGINDEX);
for (i = 0; i < dm->numPolyData; i++, mp++) {
CCGFace *f;
#ifdef USE_DYNSIZE
CCGVertHDL fVerts[mp->totloop];
#else
BLI_array_clear(fVerts);
BLI_array_grow_items(fVerts, mp->totloop);
#endif
ml = mloop + mp->loopstart;
for (j = 0; j < mp->totloop; j++, ml++) {
fVerts[j] = POINTER_FROM_UINT(ml->v);
}
/* this is very bad, means mesh is internally inconsistent.
* it is not really possible to continue without modifying
* other parts of code significantly to handle missing faces.
* since this really shouldn't even be possible we just bail.*/
if (ccgSubSurf_syncFace(ss, POINTER_FROM_INT(i), mp->totloop,
fVerts, &f) == eCCGError_InvalidValue)
{
static int hasGivenError = 0;
if (!hasGivenError) {
//XXX error("Unrecoverable error in SubSurf calculation,"
// " mesh is inconsistent.");
hasGivenError = 1;
}
return;
}
((int *)ccgSubSurf_getFaceUserData(ss, f))[1] = (index) ? *index++ : i;
}
ccgSubSurf_processSync(ss);
#ifndef USE_DYNSIZE
BLI_array_free(fVerts);
#endif
}
#ifdef WITH_OPENSUBDIV
static void ss_sync_osd_from_derivedmesh(CCGSubSurf *ss,
DerivedMesh *dm)
{
ccgSubSurf_initFullSync(ss);
ccgSubSurf_prepareTopologyRefiner(ss, dm);
ccgSubSurf_processSync(ss);
}
#endif /* WITH_OPENSUBDIV */
static void ss_sync_from_derivedmesh(CCGSubSurf *ss,
DerivedMesh *dm,
float (*vertexCos)[3],
int use_flat_subdiv,
bool use_subdiv_uvs)
{
#ifndef WITH_OPENSUBDIV
UNUSED_VARS(use_subdiv_uvs);
#endif
#ifdef WITH_OPENSUBDIV
/* Reset all related descriptors if actual mesh topology changed or if
* other evaluation-related settings changed.
*/
if (!ccgSubSurf_needGrids(ss)) {
/* TODO(sergey): Use vertex coordinates and flat subdiv flag. */
ccgSubSurf__sync_subdivUvs(ss, use_subdiv_uvs);
ccgSubSurf_checkTopologyChanged(ss, dm);
ss_sync_osd_from_derivedmesh(ss, dm);
}
else
#endif
{
ss_sync_ccg_from_derivedmesh(ss, dm, vertexCos, use_flat_subdiv);
}
}
/***/
static int ccgDM_getVertMapIndex(CCGSubSurf *ss, CCGVert *v)
{
return ((int *) ccgSubSurf_getVertUserData(ss, v))[1];
}
static int ccgDM_getEdgeMapIndex(CCGSubSurf *ss, CCGEdge *e)
{
return ((int *) ccgSubSurf_getEdgeUserData(ss, e))[1];
}
static int ccgDM_getFaceMapIndex(CCGSubSurf *ss, CCGFace *f)
{
return ((int *) ccgSubSurf_getFaceUserData(ss, f))[1];
}
static void minmax_v3_v3v3(const float vec[3], float min[3], float max[3])
{
if (min[0] > vec[0]) min[0] = vec[0];
if (min[1] > vec[1]) min[1] = vec[1];
if (min[2] > vec[2]) min[2] = vec[2];
if (max[0] < vec[0]) max[0] = vec[0];
if (max[1] < vec[1]) max[1] = vec[1];
if (max[2] < vec[2]) max[2] = vec[2];
}
static void ccgDM_getMinMax(DerivedMesh *dm, float r_min[3], float r_max[3])
{
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *) dm;
CCGSubSurf *ss = ccgdm->ss;
CCGVertIterator vi;
CCGEdgeIterator ei;
CCGFaceIterator fi;
CCGKey key;
int i, edgeSize = ccgSubSurf_getEdgeSize(ss);
int gridSize = ccgSubSurf_getGridSize(ss);
#ifdef WITH_OPENSUBDIV
if (ccgdm->useGpuBackend) {
ccgSubSurf_getMinMax(ccgdm->ss, r_min, r_max);
return;
}
#endif
CCG_key_top_level(&key, ss);
if (!ccgSubSurf_getNumVerts(ss))
r_min[0] = r_min[1] = r_min[2] = r_max[0] = r_max[1] = r_max[2] = 0.0;
for (ccgSubSurf_initVertIterator(ss, &vi); !ccgVertIterator_isStopped(&vi); ccgVertIterator_next(&vi)) {
CCGVert *v = ccgVertIterator_getCurrent(&vi);
float *co = ccgSubSurf_getVertData(ss, v);
minmax_v3_v3v3(co, r_min, r_max);
}
for (ccgSubSurf_initEdgeIterator(ss, &ei); !ccgEdgeIterator_isStopped(&ei); ccgEdgeIterator_next(&ei)) {
CCGEdge *e = ccgEdgeIterator_getCurrent(&ei);
CCGElem *edgeData = ccgSubSurf_getEdgeDataArray(ss, e);
for (i = 0; i < edgeSize; i++)
minmax_v3_v3v3(CCG_elem_offset_co(&key, edgeData, i), r_min, r_max);
}
for (ccgSubSurf_initFaceIterator(ss, &fi); !ccgFaceIterator_isStopped(&fi); ccgFaceIterator_next(&fi)) {
CCGFace *f = ccgFaceIterator_getCurrent(&fi);
int S, x, y, numVerts = ccgSubSurf_getFaceNumVerts(f);
for (S = 0; S < numVerts; S++) {
CCGElem *faceGridData = ccgSubSurf_getFaceGridDataArray(ss, f, S);
for (y = 0; y < gridSize; y++)
for (x = 0; x < gridSize; x++)
minmax_v3_v3v3(CCG_grid_elem_co(&key, faceGridData, x, y), r_min, r_max);
}
}
}
static int ccgDM_getNumVerts(DerivedMesh *dm)
{
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *) dm;
return ccgSubSurf_getNumFinalVerts(ccgdm->ss);
}
static int ccgDM_getNumEdges(DerivedMesh *dm)
{
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *) dm;
return ccgSubSurf_getNumFinalEdges(ccgdm->ss);
}
static int ccgDM_getNumPolys(DerivedMesh *dm)
{
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *) dm;
return ccgSubSurf_getNumFinalFaces(ccgdm->ss);
}
static int ccgDM_getNumTessFaces(DerivedMesh *dm)
{
return dm->numTessFaceData;
}
static int ccgDM_getNumLoops(DerivedMesh *dm)
{
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *) dm;
/* All subsurf faces are quads */
return 4 * ccgSubSurf_getNumFinalFaces(ccgdm->ss);
}
static void ccgDM_getFinalVert(DerivedMesh *dm, int vertNum, MVert *mv)
{
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *) dm;
CCGSubSurf *ss = ccgdm->ss;
CCGElem *vd;
CCGKey key;
int i;
CCG_key_top_level(&key, ss);
memset(mv, 0, sizeof(*mv));
if ((vertNum < ccgdm->edgeMap[0].startVert) && (ccgSubSurf_getNumFaces(ss) > 0)) {
/* this vert comes from face data */
int lastface = ccgSubSurf_getNumFaces(ss) - 1;
CCGFace *f;
int x, y, grid, numVerts;
int offset;
int gridSize = ccgSubSurf_getGridSize(ss);
int gridSideVerts;
int gridInternalVerts;
int gridSideEnd;
int gridInternalEnd;
i = 0;
while (i < lastface && vertNum >= ccgdm->faceMap[i + 1].startVert) {
i++;
}
f = ccgdm->faceMap[i].face;
numVerts = ccgSubSurf_getFaceNumVerts(f);
gridSideVerts = gridSize - 2;
gridInternalVerts = gridSideVerts * gridSideVerts;
gridSideEnd = 1 + numVerts * gridSideVerts;
gridInternalEnd = gridSideEnd + numVerts * gridInternalVerts;
offset = vertNum - ccgdm->faceMap[i].startVert;
if (offset < 1) {
vd = ccgSubSurf_getFaceCenterData(f);
copy_v3_v3(mv->co, CCG_elem_co(&key, vd));
normal_float_to_short_v3(mv->no, CCG_elem_no(&key, vd));
}
else if (offset < gridSideEnd) {
offset -= 1;
grid = offset / gridSideVerts;
x = offset % gridSideVerts + 1;
vd = ccgSubSurf_getFaceGridEdgeData(ss, f, grid, x);
copy_v3_v3(mv->co, CCG_elem_co(&key, vd));
normal_float_to_short_v3(mv->no, CCG_elem_no(&key, vd));
}
else if (offset < gridInternalEnd) {
offset -= gridSideEnd;
grid = offset / gridInternalVerts;
offset %= gridInternalVerts;
y = offset / gridSideVerts + 1;
x = offset % gridSideVerts + 1;
vd = ccgSubSurf_getFaceGridData(ss, f, grid, x, y);
copy_v3_v3(mv->co, CCG_elem_co(&key, vd));
normal_float_to_short_v3(mv->no, CCG_elem_no(&key, vd));
}
}
else if ((vertNum < ccgdm->vertMap[0].startVert) && (ccgSubSurf_getNumEdges(ss) > 0)) {
/* this vert comes from edge data */
CCGEdge *e;
int lastedge = ccgSubSurf_getNumEdges(ss) - 1;
int x;
i = 0;
while (i < lastedge && vertNum >= ccgdm->edgeMap[i + 1].startVert) {
i++;
}
e = ccgdm->edgeMap[i].edge;
x = vertNum - ccgdm->edgeMap[i].startVert + 1;
vd = ccgSubSurf_getEdgeData(ss, e, x);
copy_v3_v3(mv->co, CCG_elem_co(&key, vd));
normal_float_to_short_v3(mv->no, CCG_elem_no(&key, vd));
}
else {
/* this vert comes from vert data */
CCGVert *v;
i = vertNum - ccgdm->vertMap[0].startVert;
v = ccgdm->vertMap[i].vert;
vd = ccgSubSurf_getVertData(ss, v);
copy_v3_v3(mv->co, CCG_elem_co(&key, vd));
normal_float_to_short_v3(mv->no, CCG_elem_no(&key, vd));
}
}
static void ccgDM_getFinalVertCo(DerivedMesh *dm, int vertNum, float r_co[3])
{
MVert mvert;
ccgDM_getFinalVert(dm, vertNum, &mvert);
copy_v3_v3(r_co, mvert.co);
}
static void ccgDM_getFinalVertNo(DerivedMesh *dm, int vertNum, float r_no[3])
{
MVert mvert;
ccgDM_getFinalVert(dm, vertNum, &mvert);
normal_short_to_float_v3(r_no, mvert.no);
}
static void ccgDM_getFinalEdge(DerivedMesh *dm, int edgeNum, MEdge *med)
{
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *) dm;
CCGSubSurf *ss = ccgdm->ss;
int i;
memset(med, 0, sizeof(*med));
if (edgeNum < ccgdm->edgeMap[0].startEdge) {
/* this edge comes from face data */
int lastface = ccgSubSurf_getNumFaces(ss) - 1;
CCGFace *f;
int x, y, grid /*, numVerts*/;
int offset;
int gridSize = ccgSubSurf_getGridSize(ss);
int edgeSize = ccgSubSurf_getEdgeSize(ss);
int gridSideEdges;
int gridInternalEdges;
i = 0;
while (i < lastface && edgeNum >= ccgdm->faceMap[i + 1].startEdge) {
i++;
}
f = ccgdm->faceMap[i].face;
/* numVerts = ccgSubSurf_getFaceNumVerts(f); */ /*UNUSED*/
gridSideEdges = gridSize - 1;
gridInternalEdges = (gridSideEdges - 1) * gridSideEdges * 2;
offset = edgeNum - ccgdm->faceMap[i].startEdge;
grid = offset / (gridSideEdges + gridInternalEdges);
offset %= (gridSideEdges + gridInternalEdges);
if (offset < gridSideEdges) {
x = offset;
med->v1 = getFaceIndex(ss, f, grid, x, 0, edgeSize, gridSize);
med->v2 = getFaceIndex(ss, f, grid, x + 1, 0, edgeSize, gridSize);
}
else {
offset -= gridSideEdges;
x = (offset / 2) / gridSideEdges + 1;
y = (offset / 2) % gridSideEdges;
if (offset % 2 == 0) {
med->v1 = getFaceIndex(ss, f, grid, x, y, edgeSize, gridSize);
med->v2 = getFaceIndex(ss, f, grid, x, y + 1, edgeSize, gridSize);
}
else {
med->v1 = getFaceIndex(ss, f, grid, y, x, edgeSize, gridSize);
med->v2 = getFaceIndex(ss, f, grid, y + 1, x, edgeSize, gridSize);
}
}
}
else {
/* this vert comes from edge data */
CCGEdge *e;
int edgeSize = ccgSubSurf_getEdgeSize(ss);
int x;
short *edgeFlag;
unsigned int flags = 0;
i = (edgeNum - ccgdm->edgeMap[0].startEdge) / (edgeSize - 1);
e = ccgdm->edgeMap[i].edge;
if (!ccgSubSurf_getEdgeNumFaces(e)) flags |= ME_LOOSEEDGE;
x = edgeNum - ccgdm->edgeMap[i].startEdge;
med->v1 = getEdgeIndex(ss, e, x, edgeSize);
med->v2 = getEdgeIndex(ss, e, x + 1, edgeSize);
edgeFlag = (ccgdm->edgeFlags) ? &ccgdm->edgeFlags[i] : NULL;
if (edgeFlag)
flags |= (*edgeFlag & (ME_SEAM | ME_SHARP)) | ME_EDGEDRAW | ME_EDGERENDER;
else
flags |= ME_EDGEDRAW | ME_EDGERENDER;
med->flag = flags;
}
}
static void ccgDM_getFinalFace(DerivedMesh *dm, int faceNum, MFace *mf)
{
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *) dm;
CCGSubSurf *ss = ccgdm->ss;
int gridSize = ccgSubSurf_getGridSize(ss);
int edgeSize = ccgSubSurf_getEdgeSize(ss);
int gridSideEdges = gridSize - 1;
int gridFaces = gridSideEdges * gridSideEdges;
int i;
CCGFace *f;
/*int numVerts;*/
int offset;
int grid;
int x, y;
/*int lastface = ccgSubSurf_getNumFaces(ss) - 1;*/ /*UNUSED*/
DMFlagMat *faceFlags = ccgdm->faceFlags;
memset(mf, 0, sizeof(*mf));
if (faceNum >= ccgdm->dm.numTessFaceData)
return;
i = ccgdm->reverseFaceMap[faceNum];
f = ccgdm->faceMap[i].face;
/*numVerts = ccgSubSurf_getFaceNumVerts(f);*/ /*UNUSED*/
offset = faceNum - ccgdm->faceMap[i].startFace;
grid = offset / gridFaces;
offset %= gridFaces;
y = offset / gridSideEdges;
x = offset % gridSideEdges;
mf->v1 = getFaceIndex(ss, f, grid, x + 0, y + 0, edgeSize, gridSize);
mf->v2 = getFaceIndex(ss, f, grid, x + 0, y + 1, edgeSize, gridSize);
mf->v3 = getFaceIndex(ss, f, grid, x + 1, y + 1, edgeSize, gridSize);
mf->v4 = getFaceIndex(ss, f, grid, x + 1, y + 0, edgeSize, gridSize);
if (faceFlags) {
mf->flag = faceFlags[i].flag;
mf->mat_nr = faceFlags[i].mat_nr;
}
else {
mf->flag = ME_SMOOTH;
}
mf->edcode = 0;
}
/* Translate GridHidden into the ME_HIDE flag for MVerts. Assumes
* vertices are in the order output by ccgDM_copyFinalVertArray. */
void subsurf_copy_grid_hidden(DerivedMesh *dm, const MPoly *mpoly,
MVert *mvert, const MDisps *mdisps)
{
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *)dm;
CCGSubSurf *ss = ccgdm->ss;
int level = ccgSubSurf_getSubdivisionLevels(ss);
int gridSize = ccgSubSurf_getGridSize(ss);
int edgeSize = ccgSubSurf_getEdgeSize(ss);
int totface = ccgSubSurf_getNumFaces(ss);
int i, j, x, y;
for (i = 0; i < totface; i++) {
CCGFace *f = ccgdm->faceMap[i].face;
for (j = 0; j < mpoly[i].totloop; j++) {
const MDisps *md = &mdisps[mpoly[i].loopstart + j];
int hidden_gridsize = BKE_ccg_gridsize(md->level);
int factor = BKE_ccg_factor(level, md->level);
BLI_bitmap *hidden = md->hidden;
if (!hidden)
continue;
for (y = 0; y < gridSize; y++) {
for (x = 0; x < gridSize; x++) {
int vndx, offset;
vndx = getFaceIndex(ss, f, j, x, y, edgeSize, gridSize);
offset = (y * factor) * hidden_gridsize + (x * factor);
if (BLI_BITMAP_TEST(hidden, offset))
mvert[vndx].flag |= ME_HIDE;
}
}
}
}
}
/* Translate GridPaintMask into vertex paint masks. Assumes vertices
* are in the order output by ccgDM_copyFinalVertArray. */
void subsurf_copy_grid_paint_mask(DerivedMesh *dm, const MPoly *mpoly,
float *paint_mask,
const GridPaintMask *grid_paint_mask)
{
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *)dm;
CCGSubSurf *ss = ccgdm->ss;
int level = ccgSubSurf_getSubdivisionLevels(ss);
int gridSize = ccgSubSurf_getGridSize(ss);
int edgeSize = ccgSubSurf_getEdgeSize(ss);
int totface = ccgSubSurf_getNumFaces(ss);
int i, j, x, y, factor, gpm_gridsize;
for (i = 0; i < totface; i++) {
CCGFace *f = ccgdm->faceMap[i].face;
const MPoly *p = &mpoly[i];
for (j = 0; j < p->totloop; j++) {
const GridPaintMask *gpm = &grid_paint_mask[p->loopstart + j];
if (!gpm->data)
continue;
factor = BKE_ccg_factor(level, gpm->level);
gpm_gridsize = BKE_ccg_gridsize(gpm->level);
for (y = 0; y < gridSize; y++) {
for (x = 0; x < gridSize; x++) {
int vndx, offset;
vndx = getFaceIndex(ss, f, j, x, y, edgeSize, gridSize);
offset = y * factor * gpm_gridsize + x * factor;
paint_mask[vndx] = gpm->data[offset];
}
}
}
}
}
/* utility function */
BLI_INLINE void ccgDM_to_MVert(MVert *mv, const CCGKey *key, CCGElem *elem)
{
copy_v3_v3(mv->co, CCG_elem_co(key, elem));
normal_float_to_short_v3(mv->no, CCG_elem_no(key, elem));
mv->flag = mv->bweight = 0;
}
static void ccgDM_copyFinalVertArray(DerivedMesh *dm, MVert *mvert)
{
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *) dm;
CCGSubSurf *ss = ccgdm->ss;
CCGElem *vd;
CCGKey key;
int index;
int totvert, totedge, totface;
int gridSize = ccgSubSurf_getGridSize(ss);
int edgeSize = ccgSubSurf_getEdgeSize(ss);
unsigned int i = 0;
CCG_key_top_level(&key, ss);
totface = ccgSubSurf_getNumFaces(ss);
for (index = 0; index < totface; index++) {
CCGFace *f = ccgdm->faceMap[index].face;
int x, y, S, numVerts = ccgSubSurf_getFaceNumVerts(f);
vd = ccgSubSurf_getFaceCenterData(f);
ccgDM_to_MVert(&mvert[i++], &key, vd);
for (S = 0; S < numVerts; S++) {
for (x = 1; x < gridSize - 1; x++) {
vd = ccgSubSurf_getFaceGridEdgeData(ss, f, S, x);
ccgDM_to_MVert(&mvert[i++], &key, vd);
}
}
for (S = 0; S < numVerts; S++) {
for (y = 1; y < gridSize - 1; y++) {
for (x = 1; x < gridSize - 1; x++) {
vd = ccgSubSurf_getFaceGridData(ss, f, S, x, y);
ccgDM_to_MVert(&mvert[i++], &key, vd);
}
}
}
}
totedge = ccgSubSurf_getNumEdges(ss);
for (index = 0; index < totedge; index++) {
CCGEdge *e = ccgdm->edgeMap[index].edge;
int x;
for (x = 1; x < edgeSize - 1; x++) {
/* This gives errors with -debug-fpe
* the normals don't seem to be unit length.
* this is most likely caused by edges with no
* faces which are now zerod out, see comment in:
* ccgSubSurf__calcVertNormals(), - campbell */
vd = ccgSubSurf_getEdgeData(ss, e, x);
ccgDM_to_MVert(&mvert[i++], &key, vd);
}
}
totvert = ccgSubSurf_getNumVerts(ss);
for (index = 0; index < totvert; index++) {
CCGVert *v = ccgdm->vertMap[index].vert;
vd = ccgSubSurf_getVertData(ss, v);
ccgDM_to_MVert(&mvert[i++], &key, vd);
}
}
/* utility function */
BLI_INLINE void ccgDM_to_MEdge(MEdge *med, const int v1, const int v2, const short flag)
{
med->v1 = v1;
med->v2 = v2;
med->crease = med->bweight = 0;
med->flag = flag;
}
static void ccgDM_copyFinalEdgeArray(DerivedMesh *dm, MEdge *medge)
{
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *) dm;
CCGSubSurf *ss = ccgdm->ss;
int index;
int totedge, totface;
int gridSize = ccgSubSurf_getGridSize(ss);
int edgeSize = ccgSubSurf_getEdgeSize(ss);
unsigned int i = 0;
short *edgeFlags = ccgdm->edgeFlags;
const short ed_interior_flag = ccgdm->drawInteriorEdges ? (ME_EDGEDRAW | ME_EDGERENDER) : 0;
totface = ccgSubSurf_getNumFaces(ss);
for (index = 0; index < totface; index++) {
CCGFace *f = ccgdm->faceMap[index].face;
int x, y, S, numVerts = ccgSubSurf_getFaceNumVerts(f);
for (S = 0; S < numVerts; S++) {
for (x = 0; x < gridSize - 1; x++) {
ccgDM_to_MEdge(&medge[i++],
getFaceIndex(ss, f, S, x, 0, edgeSize, gridSize),
getFaceIndex(ss, f, S, x + 1, 0, edgeSize, gridSize),
ed_interior_flag);
}
for (x = 1; x < gridSize - 1; x++) {
for (y = 0; y < gridSize - 1; y++) {
ccgDM_to_MEdge(&medge[i++],
getFaceIndex(ss, f, S, x, y, edgeSize, gridSize),
getFaceIndex(ss, f, S, x, y + 1, edgeSize, gridSize),
ed_interior_flag);
ccgDM_to_MEdge(&medge[i++],
getFaceIndex(ss, f, S, y, x, edgeSize, gridSize),
getFaceIndex(ss, f, S, y + 1, x, edgeSize, gridSize),
ed_interior_flag);
}
}
}
}
totedge = ccgSubSurf_getNumEdges(ss);
for (index = 0; index < totedge; index++) {
CCGEdge *e = ccgdm->edgeMap[index].edge;
short ed_flag = 0;
int x;
int edgeIdx = POINTER_AS_INT(ccgSubSurf_getEdgeEdgeHandle(e));
if (!ccgSubSurf_getEdgeNumFaces(e)) {
ed_flag |= ME_LOOSEEDGE;
}
if (edgeFlags) {
if (edgeIdx != -1) {
ed_flag |= ((edgeFlags[index] & (ME_SEAM | ME_SHARP)) | ME_EDGEDRAW | ME_EDGERENDER);
}
}
else {
ed_flag |= ME_EDGEDRAW | ME_EDGERENDER;
}
for (x = 0; x < edgeSize - 1; x++) {
ccgDM_to_MEdge(&medge[i++],
getEdgeIndex(ss, e, x, edgeSize),
getEdgeIndex(ss, e, x + 1, edgeSize),
ed_flag);
}
}
}
static void ccgDM_copyFinalFaceArray(DerivedMesh *dm, MFace *mface)
{
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *) dm;
CCGSubSurf *ss = ccgdm->ss;
int index;
int totface;
int gridSize = ccgSubSurf_getGridSize(ss);
int edgeSize = ccgSubSurf_getEdgeSize(ss);
int i = 0;
DMFlagMat *faceFlags = ccgdm->faceFlags;
totface = dm->getNumTessFaces(dm);
for (index = 0; index < totface; index++) {
CCGFace *f = ccgdm->faceMap[index].face;
int x, y, S, numVerts = ccgSubSurf_getFaceNumVerts(f);
/* keep types in sync with MFace, avoid many conversions */
char flag = (faceFlags) ? faceFlags[index].flag : ME_SMOOTH;
short mat_nr = (faceFlags) ? faceFlags[index].mat_nr : 0;
for (S = 0; S < numVerts; S++) {
for (y = 0; y < gridSize - 1; y++) {
for (x = 0; x < gridSize - 1; x++) {
MFace *mf = &mface[i];
mf->v1 = getFaceIndex(ss, f, S, x + 0, y + 0,
edgeSize, gridSize);
mf->v2 = getFaceIndex(ss, f, S, x + 0, y + 1,
edgeSize, gridSize);
mf->v3 = getFaceIndex(ss, f, S, x + 1, y + 1,
edgeSize, gridSize);
mf->v4 = getFaceIndex(ss, f, S, x + 1, y + 0,
edgeSize, gridSize);
mf->mat_nr = mat_nr;
mf->flag = flag;
mf->edcode = 0;
i++;
}
}
}
}
}
typedef struct CopyFinalLoopArrayData {
CCGDerivedMesh *ccgdm;
MLoop *mloop;
int grid_size;
int *grid_offset;
int edge_size;
size_t mloop_index;
} CopyFinalLoopArrayData;
static void copyFinalLoopArray_task_cb(
void *__restrict userdata,
const int iter,
const ParallelRangeTLS *__restrict UNUSED(tls))
{
CopyFinalLoopArrayData *data = userdata;
CCGDerivedMesh *ccgdm = data->ccgdm;
CCGSubSurf *ss = ccgdm->ss;
const int grid_size = data->grid_size;
const int edge_size = data->edge_size;
CCGFace *f = ccgdm->faceMap[iter].face;
const int num_verts = ccgSubSurf_getFaceNumVerts(f);
const int grid_index = data->grid_offset[iter];
const size_t loop_index = 4 * (size_t)grid_index * (grid_size - 1) * (grid_size - 1);
MLoop *ml = &data->mloop[loop_index];
for (int S = 0; S < num_verts; S++) {
for (int y = 0; y < grid_size - 1; y++) {
for (int x = 0; x < grid_size - 1; x++) {
uint v1 = getFaceIndex(ss, f, S, x + 0, y + 0,
edge_size, grid_size);
uint v2 = getFaceIndex(ss, f, S, x + 0, y + 1,
edge_size, grid_size);
uint v3 = getFaceIndex(ss, f, S, x + 1, y + 1,
edge_size, grid_size);
uint v4 = getFaceIndex(ss, f, S, x + 1, y + 0,
edge_size, grid_size);
ml->v = v1;
ml->e = POINTER_AS_UINT(BLI_edgehash_lookup(ccgdm->ehash, v1, v2));
ml++;
ml->v = v2;
ml->e = POINTER_AS_UINT(BLI_edgehash_lookup(ccgdm->ehash, v2, v3));
ml++;
ml->v = v3;
ml->e = POINTER_AS_UINT(BLI_edgehash_lookup(ccgdm->ehash, v3, v4));
ml++;
ml->v = v4;
ml->e = POINTER_AS_UINT(BLI_edgehash_lookup(ccgdm->ehash, v4, v1));
ml++;
}
}
}
}
static void ccgDM_copyFinalLoopArray(DerivedMesh *dm, MLoop *mloop)
{
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *) dm;
CCGSubSurf *ss = ccgdm->ss;
if (!ccgdm->ehash) {
BLI_mutex_lock(&ccgdm->loops_cache_lock);
if (!ccgdm->ehash) {
MEdge *medge;
EdgeHash *ehash;
ehash = BLI_edgehash_new_ex(__func__, ccgdm->dm.numEdgeData);
medge = ccgdm->dm.getEdgeArray((DerivedMesh *)ccgdm);
for (int i = 0; i < ccgdm->dm.numEdgeData; i++) {
BLI_edgehash_insert(ehash, medge[i].v1, medge[i].v2, POINTER_FROM_INT(i));
}
atomic_cas_ptr((void **)&ccgdm->ehash, ccgdm->ehash, ehash);
}
BLI_mutex_unlock(&ccgdm->loops_cache_lock);
}
CopyFinalLoopArrayData data;
data.ccgdm = ccgdm;
data.mloop = mloop;
data.grid_size = ccgSubSurf_getGridSize(ss);
data.grid_offset = dm->getGridOffset(dm);
data.edge_size = ccgSubSurf_getEdgeSize(ss);
/* NOTE: For a dense subdivision we've got enough work for each face and
* hence can dedicate whole thread to single face. For less dense
* subdivision we handle multiple faces per thread.
*/
data.mloop_index = data.grid_size >= 5 ? 1 : 8;
ParallelRangeSettings settings;
BLI_parallel_range_settings_defaults(&settings);
settings.min_iter_per_thread = 1;
BLI_task_parallel_range(0, ccgSubSurf_getNumFaces(ss),
&data,
copyFinalLoopArray_task_cb,
&settings);
}
static void ccgDM_copyFinalPolyArray(DerivedMesh *dm, MPoly *mpoly)
{
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *) dm;
CCGSubSurf *ss = ccgdm->ss;
int index;
int totface;
int gridSize = ccgSubSurf_getGridSize(ss);
/* int edgeSize = ccgSubSurf_getEdgeSize(ss); */ /* UNUSED */
int i = 0, k = 0;
DMFlagMat *faceFlags = ccgdm->faceFlags;
totface = ccgSubSurf_getNumFaces(ss);
for (index = 0; index < totface; index++) {
CCGFace *f = ccgdm->faceMap[index].face;
int x, y, S, numVerts = ccgSubSurf_getFaceNumVerts(f);
int flag = (faceFlags) ? faceFlags[index].flag : ME_SMOOTH;
int mat_nr = (faceFlags) ? faceFlags[index].mat_nr : 0;
for (S = 0; S < numVerts; S++) {
for (y = 0; y < gridSize - 1; y++) {
for (x = 0; x < gridSize - 1; x++) {
MPoly *mp = &mpoly[i];
mp->mat_nr = mat_nr;
mp->flag = flag;
mp->loopstart = k;
mp->totloop = 4;
k += 4;
i++;
}
}
}
}
}
static void ccgdm_getVertCos(DerivedMesh *dm, float (*cos)[3])
{
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *) dm;
CCGSubSurf *ss = ccgdm->ss;
int edgeSize = ccgSubSurf_getEdgeSize(ss);
int gridSize = ccgSubSurf_getGridSize(ss);
int i;
CCGVertIterator vi;
CCGEdgeIterator ei;
CCGFaceIterator fi;
CCGFace **faceMap2;
CCGEdge **edgeMap2;
CCGVert **vertMap2;
int index, totvert, totedge, totface;
totvert = ccgSubSurf_getNumVerts(ss);
vertMap2 = MEM_mallocN(totvert * sizeof(*vertMap2), "vertmap");
for (ccgSubSurf_initVertIterator(ss, &vi); !ccgVertIterator_isStopped(&vi); ccgVertIterator_next(&vi)) {
CCGVert *v = ccgVertIterator_getCurrent(&vi);
vertMap2[POINTER_AS_INT(ccgSubSurf_getVertVertHandle(v))] = v;
}
totedge = ccgSubSurf_getNumEdges(ss);
edgeMap2 = MEM_mallocN(totedge * sizeof(*edgeMap2), "edgemap");
for (ccgSubSurf_initEdgeIterator(ss, &ei), i = 0; !ccgEdgeIterator_isStopped(&ei); i++, ccgEdgeIterator_next(&ei)) {
CCGEdge *e = ccgEdgeIterator_getCurrent(&ei);
edgeMap2[POINTER_AS_INT(ccgSubSurf_getEdgeEdgeHandle(e))] = e;
}
totface = ccgSubSurf_getNumFaces(ss);
faceMap2 = MEM_mallocN(totface * sizeof(*faceMap2), "facemap");
for (ccgSubSurf_initFaceIterator(ss, &fi); !ccgFaceIterator_isStopped(&fi); ccgFaceIterator_next(&fi)) {
CCGFace *f = ccgFaceIterator_getCurrent(&fi);
faceMap2[POINTER_AS_INT(ccgSubSurf_getFaceFaceHandle(f))] = f;
}
i = 0;
for (index = 0; index < totface; index++) {
CCGFace *f = faceMap2[index];
int x, y, S, numVerts = ccgSubSurf_getFaceNumVerts(f);
copy_v3_v3(cos[i++], ccgSubSurf_getFaceCenterData(f));
for (S = 0; S < numVerts; S++) {
for (x = 1; x < gridSize - 1; x++) {
copy_v3_v3(cos[i++], ccgSubSurf_getFaceGridEdgeData(ss, f, S, x));
}
}
for (S = 0; S < numVerts; S++) {
for (y = 1; y < gridSize - 1; y++) {
for (x = 1; x < gridSize - 1; x++) {
copy_v3_v3(cos[i++], ccgSubSurf_getFaceGridData(ss, f, S, x, y));
}
}
}
}
for (index = 0; index < totedge; index++) {
CCGEdge *e = edgeMap2[index];
int x;
for (x = 1; x < edgeSize - 1; x++) {
copy_v3_v3(cos[i++], ccgSubSurf_getEdgeData(ss, e, x));
}
}
for (index = 0; index < totvert; index++) {
CCGVert *v = vertMap2[index];
copy_v3_v3(cos[i++], ccgSubSurf_getVertData(ss, v));
}
MEM_freeN(vertMap2);
MEM_freeN(edgeMap2);
MEM_freeN(faceMap2);
}
static void ccgDM_foreachMappedVert(
DerivedMesh *dm,
void (*func)(void *userData, int index, const float co[3], const float no_f[3], const short no_s[3]),
void *userData,
DMForeachFlag flag)
{
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *) dm;
CCGVertIterator vi;
CCGKey key;
CCG_key_top_level(&key, ccgdm->ss);
for (ccgSubSurf_initVertIterator(ccgdm->ss, &vi); !ccgVertIterator_isStopped(&vi); ccgVertIterator_next(&vi)) {
CCGVert *v = ccgVertIterator_getCurrent(&vi);
const int index = ccgDM_getVertMapIndex(ccgdm->ss, v);
if (index != -1) {
CCGElem *vd = ccgSubSurf_getVertData(ccgdm->ss, v);
const float *no = (flag & DM_FOREACH_USE_NORMAL) ? CCG_elem_no(&key, vd) : NULL;
func(userData, index, CCG_elem_co(&key, vd), no, NULL);
}
}
}
static void ccgDM_foreachMappedEdge(
DerivedMesh *dm,
void (*func)(void *userData, int index, const float v0co[3], const float v1co[3]),
void *userData)
{
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *) dm;
CCGSubSurf *ss = ccgdm->ss;
CCGEdgeIterator ei;
CCGKey key;
int i, edgeSize = ccgSubSurf_getEdgeSize(ss);
CCG_key_top_level(&key, ss);
for (ccgSubSurf_initEdgeIterator(ss, &ei); !ccgEdgeIterator_isStopped(&ei); ccgEdgeIterator_next(&ei)) {
CCGEdge *e = ccgEdgeIterator_getCurrent(&ei);
const int index = ccgDM_getEdgeMapIndex(ss, e);
if (index != -1) {
CCGElem *edgeData = ccgSubSurf_getEdgeDataArray(ss, e);
for (i = 0; i < edgeSize - 1; i++) {
func(userData, index, CCG_elem_offset_co(&key, edgeData, i), CCG_elem_offset_co(&key, edgeData, i + 1));
}
}
}
}
static void ccgDM_foreachMappedLoop(
DerivedMesh *dm,
void (*func)(void *userData, int vertex_index, int face_index, const float co[3], const float no[3]),
void *userData,
DMForeachFlag flag)
{
/* We can't use dm->getLoopDataLayout(dm) here, we want to always access dm->loopData, EditDerivedBMesh would
* return loop data from bmesh itself. */
const float (*lnors)[3] = (flag & DM_FOREACH_USE_NORMAL) ? DM_get_loop_data_layer(dm, CD_NORMAL) : NULL;
MVert *mv = dm->getVertArray(dm);
MLoop *ml = dm->getLoopArray(dm);
MPoly *mp = dm->getPolyArray(dm);
const int *v_index = dm->getVertDataArray(dm, CD_ORIGINDEX);
const int *f_index = dm->getPolyDataArray(dm, CD_ORIGINDEX);
int p_idx, i;
for (p_idx = 0; p_idx < dm->numPolyData; ++p_idx, ++mp) {
for (i = 0; i < mp->totloop; ++i, ++ml) {
const int v_idx = v_index ? v_index[ml->v] : ml->v;
const int f_idx = f_index ? f_index[p_idx] : p_idx;
const float *no = lnors ? *lnors++ : NULL;
if (!ELEM(ORIGINDEX_NONE, v_idx, f_idx)) {
func(userData, v_idx, f_idx, mv[ml->v].co, no);
}
}
}
}
static void UNUSED_FUNCTION(ccgdm_pbvh_update)(CCGDerivedMesh *ccgdm)
{
if (ccgdm->pbvh && ccgDM_use_grid_pbvh(ccgdm)) {
CCGFace **faces;
int totface;
BKE_pbvh_get_grid_updates(ccgdm->pbvh, 1, (void ***)&faces, &totface);
if (totface) {
ccgSubSurf_updateFromFaces(ccgdm->ss, 0, faces, totface);
ccgSubSurf_updateNormals(ccgdm->ss, faces, totface);
MEM_freeN(faces);
}
}
}
static void ccgDM_foreachMappedFaceCenter(
DerivedMesh *dm,
void (*func)(void *userData, int index, const float co[3], const float no[3]),
void *userData,
DMForeachFlag flag)
{
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *) dm;
CCGSubSurf *ss = ccgdm->ss;
CCGKey key;
CCGFaceIterator fi;
CCG_key_top_level(&key, ss);
for (ccgSubSurf_initFaceIterator(ss, &fi); !ccgFaceIterator_isStopped(&fi); ccgFaceIterator_next(&fi)) {
CCGFace *f = ccgFaceIterator_getCurrent(&fi);
const int index = ccgDM_getFaceMapIndex(ss, f);
if (index != -1) {
/* Face center data normal isn't updated atm. */
CCGElem *vd = ccgSubSurf_getFaceGridData(ss, f, 0, 0, 0);
const float *no = (flag & DM_FOREACH_USE_NORMAL) ? CCG_elem_no(&key, vd) : NULL;
func(userData, index, CCG_elem_co(&key, vd), no);
}
}
}
static void ccgDM_release(DerivedMesh *dm)
{
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *) dm;
if (DM_release(dm)) {
/* Before freeing, need to update the displacement map */
if (ccgdm->multires.modified_flags) {
/* Check that mmd still exists */
if (!ccgdm->multires.local_mmd &&
BLI_findindex(&ccgdm->multires.ob->modifiers, ccgdm->multires.mmd) < 0)
{
ccgdm->multires.mmd = NULL;
}
if (ccgdm->multires.mmd) {
if (ccgdm->multires.modified_flags & MULTIRES_COORDS_MODIFIED)
multires_modifier_update_mdisps(dm, NULL);
if (ccgdm->multires.modified_flags & MULTIRES_HIDDEN_MODIFIED)
multires_modifier_update_hidden(dm);
}
}
if (ccgdm->ehash)
BLI_edgehash_free(ccgdm->ehash, NULL);
if (ccgdm->reverseFaceMap) MEM_freeN(ccgdm->reverseFaceMap);
if (ccgdm->gridFaces) MEM_freeN(ccgdm->gridFaces);
if (ccgdm->gridData) MEM_freeN(ccgdm->gridData);
if (ccgdm->gridOffset) MEM_freeN(ccgdm->gridOffset);
if (ccgdm->gridFlagMats) MEM_freeN(ccgdm->gridFlagMats);
if (ccgdm->gridHidden) {
/* Using dm->getNumGrids(dm) accesses freed memory */
uint numGrids = ccgdm->numGrid;
for (uint i = 0; i < numGrids; i++) {
if (ccgdm->gridHidden[i]) {
MEM_freeN(ccgdm->gridHidden[i]);
}
}
MEM_freeN(ccgdm->gridHidden);
}
if (ccgdm->freeSS) ccgSubSurf_free(ccgdm->ss);
if (ccgdm->pmap) MEM_freeN(ccgdm->pmap);
if (ccgdm->pmap_mem) MEM_freeN(ccgdm->pmap_mem);
MEM_freeN(ccgdm->edgeFlags);
MEM_freeN(ccgdm->faceFlags);
if (ccgdm->useGpuBackend == false) {
MEM_freeN(ccgdm->vertMap);
MEM_freeN(ccgdm->edgeMap);
MEM_freeN(ccgdm->faceMap);
}
BLI_mutex_end(&ccgdm->loops_cache_lock);
BLI_rw_mutex_end(&ccgdm->origindex_cache_rwlock);
MEM_freeN(ccgdm);
}
}
static void *ccgDM_get_vert_data_layer(DerivedMesh *dm, int type)
{
if (type == CD_ORIGINDEX) {
/* create origindex on demand to save memory */
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *)dm;
CCGSubSurf *ss = ccgdm->ss;
int *origindex;
int a, index, totnone, totorig;
/* Avoid re-creation if the layer exists already */
BLI_rw_mutex_lock(&ccgdm->origindex_cache_rwlock, THREAD_LOCK_READ);
origindex = DM_get_vert_data_layer(dm, CD_ORIGINDEX);
BLI_rw_mutex_unlock(&ccgdm->origindex_cache_rwlock);
if (origindex) {
return origindex;
}
BLI_rw_mutex_lock(&ccgdm->origindex_cache_rwlock, THREAD_LOCK_WRITE);
DM_add_vert_layer(dm, CD_ORIGINDEX, CD_CALLOC, NULL);
origindex = DM_get_vert_data_layer(dm, CD_ORIGINDEX);
totorig = ccgSubSurf_getNumVerts(ss);
totnone = dm->numVertData - totorig;
/* original vertices are at the end */
for (a = 0; a < totnone; a++)
origindex[a] = ORIGINDEX_NONE;
for (index = 0; index < totorig; index++, a++) {
CCGVert *v = ccgdm->vertMap[index].vert;
origindex[a] = ccgDM_getVertMapIndex(ccgdm->ss, v);
}
BLI_rw_mutex_unlock(&ccgdm->origindex_cache_rwlock);
return origindex;
}
return DM_get_vert_data_layer(dm, type);
}
static void *ccgDM_get_edge_data_layer(DerivedMesh *dm, int type)
{
if (type == CD_ORIGINDEX) {
/* create origindex on demand to save memory */
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *)dm;
CCGSubSurf *ss = ccgdm->ss;
int *origindex;
int a, i, index, totnone, totorig, totedge;
int edgeSize = ccgSubSurf_getEdgeSize(ss);
/* Avoid re-creation if the layer exists already */
origindex = DM_get_edge_data_layer(dm, CD_ORIGINDEX);
if (origindex) {
return origindex;
}
DM_add_edge_layer(dm, CD_ORIGINDEX, CD_CALLOC, NULL);
origindex = DM_get_edge_data_layer(dm, CD_ORIGINDEX);
totedge = ccgSubSurf_getNumEdges(ss);
totorig = totedge * (edgeSize - 1);
totnone = dm->numEdgeData - totorig;
/* original edges are at the end */
for (a = 0; a < totnone; a++)
origindex[a] = ORIGINDEX_NONE;
for (index = 0; index < totedge; index++) {
CCGEdge *e = ccgdm->edgeMap[index].edge;
int mapIndex = ccgDM_getEdgeMapIndex(ss, e);
for (i = 0; i < edgeSize - 1; i++, a++)
origindex[a] = mapIndex;
}
return origindex;
}
return DM_get_edge_data_layer(dm, type);
}
static void *ccgDM_get_tessface_data_layer(DerivedMesh *dm, int type)
{
if (type == CD_ORIGINDEX) {
/* create origindex on demand to save memory */
int *origindex;
/* Avoid re-creation if the layer exists already */
origindex = DM_get_tessface_data_layer(dm, CD_ORIGINDEX);
if (origindex) {
return origindex;
}
DM_add_tessface_layer(dm, CD_ORIGINDEX, CD_CALLOC, NULL);
origindex = DM_get_tessface_data_layer(dm, CD_ORIGINDEX);
/* silly loop counting up */
range_vn_i(origindex, dm->getNumTessFaces(dm), 0);
return origindex;
}
if (type == CD_TESSLOOPNORMAL) {
/* Create tessloopnormal on demand to save memory. */
/* Note that since tessellated face corners are the same a loops in CCGDM, and since all faces have four
* loops/corners, we can simplify the code here by converting tessloopnormals from 'short (*)[4][3]'
* to 'short (*)[3]'.
*/
short (*tlnors)[3];
/* Avoid re-creation if the layer exists already */
tlnors = DM_get_tessface_data_layer(dm, CD_TESSLOOPNORMAL);
if (!tlnors) {
float (*lnors)[3];
short (*tlnors_it)[3];
const int numLoops = ccgDM_getNumLoops(dm);
int i;
lnors = dm->getLoopDataArray(dm, CD_NORMAL);
if (!lnors) {
return NULL;
}
DM_add_tessface_layer(dm, CD_TESSLOOPNORMAL, CD_CALLOC, NULL);
tlnors = tlnors_it = (short (*)[3])DM_get_tessface_data_layer(dm, CD_TESSLOOPNORMAL);
/* With ccgdm, we have a simple one to one mapping between loops and tessellated face corners. */
for (i = 0; i < numLoops; ++i, ++tlnors_it, ++lnors) {
normal_float_to_short_v3(*tlnors_it, *lnors);
}
}
return tlnors;
}
return DM_get_tessface_data_layer(dm, type);
}
static void *ccgDM_get_poly_data_layer(DerivedMesh *dm, int type)
{
if (type == CD_ORIGINDEX) {
/* create origindex on demand to save memory */
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *)dm;
CCGSubSurf *ss = ccgdm->ss;
int *origindex;
int a, i, index, totface;
int gridFaces = ccgSubSurf_getGridSize(ss) - 1;
/* Avoid re-creation if the layer exists already */
origindex = DM_get_poly_data_layer(dm, CD_ORIGINDEX);
if (origindex) {
return origindex;
}
DM_add_poly_layer(dm, CD_ORIGINDEX, CD_CALLOC, NULL);
origindex = DM_get_poly_data_layer(dm, CD_ORIGINDEX);
totface = ccgSubSurf_getNumFaces(ss);
for (a = 0, index = 0; index < totface; index++) {
CCGFace *f = ccgdm->faceMap[index].face;
int numVerts = ccgSubSurf_getFaceNumVerts(f);
int mapIndex = ccgDM_getFaceMapIndex(ss, f);
for (i = 0; i < gridFaces * gridFaces * numVerts; i++, a++)
origindex[a] = mapIndex;
}
return origindex;
}
return DM_get_poly_data_layer(dm, type);
}
static void *ccgDM_get_vert_data(DerivedMesh *dm, int index, int type)
{
if (type == CD_ORIGINDEX) {
/* ensure creation of CD_ORIGINDEX layer */
ccgDM_get_vert_data_layer(dm, type);
}
return DM_get_vert_data(dm, index, type);
}
static void *ccgDM_get_edge_data(DerivedMesh *dm, int index, int type)
{
if (type == CD_ORIGINDEX) {
/* ensure creation of CD_ORIGINDEX layer */
ccgDM_get_edge_data_layer(dm, type);
}
return DM_get_edge_data(dm, index, type);
}
static void *ccgDM_get_tessface_data(DerivedMesh *dm, int index, int type)
{
if (ELEM(type, CD_ORIGINDEX, CD_TESSLOOPNORMAL)) {
/* ensure creation of CD_ORIGINDEX/CD_TESSLOOPNORMAL layers */
ccgDM_get_tessface_data_layer(dm, type);
}
return DM_get_tessface_data(dm, index, type);
}
static void *ccgDM_get_poly_data(DerivedMesh *dm, int index, int type)
{
if (type == CD_ORIGINDEX) {
/* ensure creation of CD_ORIGINDEX layer */
ccgDM_get_tessface_data_layer(dm, type);
}
return DM_get_poly_data(dm, index, type);
}
static int ccgDM_getNumGrids(DerivedMesh *dm)
{
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *)dm;
int index, numFaces, numGrids;
numFaces = ccgSubSurf_getNumFaces(ccgdm->ss);
numGrids = 0;
for (index = 0; index < numFaces; index++) {
CCGFace *f = ccgdm->faceMap[index].face;
numGrids += ccgSubSurf_getFaceNumVerts(f);
}
return numGrids;
}
static int ccgDM_getGridSize(DerivedMesh *dm)
{
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *)dm;
return ccgSubSurf_getGridSize(ccgdm->ss);
}
static void ccgdm_create_grids(DerivedMesh *dm)
{
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *)dm;
CCGSubSurf *ss = ccgdm->ss;
CCGElem **gridData;
DMFlagMat *gridFlagMats;
CCGFace **gridFaces;
int *gridOffset;
int index, numFaces, numGrids, S, gIndex /*, gridSize*/;
if (ccgdm->gridData)
return;
numGrids = ccgDM_getNumGrids(dm);
numFaces = ccgSubSurf_getNumFaces(ss);
/*gridSize = ccgDM_getGridSize(dm);*/ /*UNUSED*/
/* compute offset into grid array for each face */
gridOffset = MEM_mallocN(sizeof(int) * numFaces, "ccgdm.gridOffset");
for (gIndex = 0, index = 0; index < numFaces; index++) {
CCGFace *f = ccgdm->faceMap[index].face;
int numVerts = ccgSubSurf_getFaceNumVerts(f);
gridOffset[index] = gIndex;
gIndex += numVerts;
}
/* compute grid data */
gridData = MEM_mallocN(sizeof(CCGElem *) * numGrids, "ccgdm.gridData");
gridFaces = MEM_mallocN(sizeof(CCGFace *) * numGrids, "ccgdm.gridFaces");
gridFlagMats = MEM_mallocN(sizeof(DMFlagMat) * numGrids, "ccgdm.gridFlagMats");
ccgdm->gridHidden = MEM_callocN(sizeof(*ccgdm->gridHidden) * numGrids, "ccgdm.gridHidden");
for (gIndex = 0, index = 0; index < numFaces; index++) {
CCGFace *f = ccgdm->faceMap[index].face;
int numVerts = ccgSubSurf_getFaceNumVerts(f);
for (S = 0; S < numVerts; S++, gIndex++) {
gridData[gIndex] = ccgSubSurf_getFaceGridDataArray(ss, f, S);
gridFaces[gIndex] = f;
gridFlagMats[gIndex] = ccgdm->faceFlags[index];
}
}
ccgdm->gridData = gridData;
ccgdm->gridFaces = gridFaces;
ccgdm->gridOffset = gridOffset;
ccgdm->gridFlagMats = gridFlagMats;
ccgdm->numGrid = numGrids;
}
static CCGElem **ccgDM_getGridData(DerivedMesh *dm)
{
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *)dm;
ccgdm_create_grids(dm);
return ccgdm->gridData;
}
static int *ccgDM_getGridOffset(DerivedMesh *dm)
{
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *)dm;
ccgdm_create_grids(dm);
return ccgdm->gridOffset;
}
static void ccgDM_getGridKey(DerivedMesh *dm, CCGKey *key)
{
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *)dm;
CCG_key_top_level(key, ccgdm->ss);
}
static DMFlagMat *ccgDM_getGridFlagMats(DerivedMesh *dm)
{
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *)dm;
ccgdm_create_grids(dm);
return ccgdm->gridFlagMats;
}
static BLI_bitmap **ccgDM_getGridHidden(DerivedMesh *dm)
{
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *)dm;
ccgdm_create_grids(dm);
return ccgdm->gridHidden;
}
static const MeshElemMap *ccgDM_getPolyMap(Object *ob, DerivedMesh *dm)
{
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *)dm;
if (!ccgdm->multires.mmd && !ccgdm->pmap && ob->type == OB_MESH) {
Mesh *me = ob->data;
BKE_mesh_vert_poly_map_create(&ccgdm->pmap, &ccgdm->pmap_mem,
me->mpoly, me->mloop,
me->totvert, me->totpoly, me->totloop);
}
return ccgdm->pmap;
}
static int ccgDM_use_grid_pbvh(CCGDerivedMesh *ccgdm)
{
MultiresModifierData *mmd = ccgdm->multires.mmd;
/* both of multires and subsurf modifiers are CCG, but
* grids should only be used when sculpting on multires */
if (!mmd)
return 0;
return 1;
}
static struct PBVH *ccgDM_getPBVH(Object *ob, DerivedMesh *dm)
{
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *)dm;
CCGKey key;
int numGrids;
CCG_key_top_level(&key, ccgdm->ss);
if (!ob) {
ccgdm->pbvh = NULL;
return NULL;
}
if (!ob->sculpt)
return NULL;
bool grid_pbvh = ccgDM_use_grid_pbvh(ccgdm);
if ((ob->mode & OB_MODE_SCULPT) == 0) {
/* In vwpaint, we may use a grid_pbvh for multires/subsurf, under certain conditions.
* More complex cases break 'history' trail back to original vertices, in that case we fall back to
* deformed cage only (i.e. original deformed mesh). */
VirtualModifierData virtualModifierData;
ModifierData *md = modifiers_getVirtualModifierList(ob, &virtualModifierData);
grid_pbvh = true;
bool has_one_ccg_modifier = false;
for (; md; md = md->next) {
/* We can only accept to use this ccgdm if:
* - it's the only active ccgdm in the stack.
* - there is no topology-modifying modifier in the stack.
* Otherwise, there is no way to map back to original geometry from grid-generated PBVH.
*/
const ModifierTypeInfo *mti = modifierType_getInfo(md->type);
if (!modifier_isEnabled(NULL, md, eModifierMode_Realtime)) {
continue;
}
if (ELEM(mti->type, eModifierTypeType_OnlyDeform, eModifierTypeType_NonGeometrical)) {
continue;
}
if (ELEM(md->type, eModifierType_Subsurf, eModifierType_Multires)) {
if (has_one_ccg_modifier) {
/* We only allow a single active ccg modifier in the stack. */
grid_pbvh = false;
break;
}
has_one_ccg_modifier = true;
continue;
}
/* Any other non-deforming modifier makes it impossible to use grid pbvh. */
grid_pbvh = false;
break;
}
}
if (ob->sculpt->pbvh) {
/* Note that we have to clean up exisitng pbvh instead of updating it in case it does not match current
* grid_pbvh status. */
const PBVHType pbvh_type = BKE_pbvh_type(ob->sculpt->pbvh);
if (grid_pbvh) {
if (pbvh_type == PBVH_GRIDS) {
/* pbvh's grids, gridadj and gridfaces points to data inside ccgdm
* but this can be freed on ccgdm release, this updates the pointers
* when the ccgdm gets remade, the assumption is that the topology
* does not change. */
ccgdm_create_grids(dm);
BKE_pbvh_grids_update(ob->sculpt->pbvh, ccgdm->gridData, (void **)ccgdm->gridFaces,
ccgdm->gridFlagMats, ccgdm->gridHidden);
}
else {
BKE_pbvh_free(ob->sculpt->pbvh);
ob->sculpt->pbvh = NULL;
}
}
else if (pbvh_type == PBVH_GRIDS) {
BKE_pbvh_free(ob->sculpt->pbvh);
ob->sculpt->pbvh = NULL;
}
ccgdm->pbvh = ob->sculpt->pbvh;
}
if (ccgdm->pbvh) {
return ccgdm->pbvh;
}
/* No pbvh exists yet, we need to create one. only in case of multires
* we build a pbvh over the modified mesh, in other cases the base mesh
* is being sculpted, so we build a pbvh from that. */
/* Note: vwpaint tries to always build a pbvh over the modified mesh. */
if (grid_pbvh) {
ccgdm_create_grids(dm);
numGrids = ccgDM_getNumGrids(dm);
ob->sculpt->pbvh = ccgdm->pbvh = BKE_pbvh_new();
BKE_pbvh_build_grids(ccgdm->pbvh, ccgdm->gridData,
numGrids, &key, (void **) ccgdm->gridFaces, ccgdm->gridFlagMats, ccgdm->gridHidden);
}
else if (ob->type == OB_MESH) {
Mesh *me = BKE_object_get_original_mesh(ob);
const int looptris_num = poly_to_tri_count(me->totpoly, me->totloop);
MLoopTri *looptri;
looptri = MEM_mallocN(sizeof(*looptri) * looptris_num, __func__);
BKE_mesh_recalc_looptri(
me->mloop, me->mpoly,
me->mvert,
me->totloop, me->totpoly,
looptri);
ob->sculpt->pbvh = ccgdm->pbvh = BKE_pbvh_new();
BKE_pbvh_build_mesh(ccgdm->pbvh, me->mpoly, me->mloop, me->mvert, me->totvert, &me->vdata,
looptri, looptris_num);
if (ob->sculpt->modifiers_active && ob->derivedDeform != NULL) {
DerivedMesh *deformdm = ob->derivedDeform;
float (*vertCos)[3];
int totvert;
totvert = deformdm->getNumVerts(deformdm);
vertCos = MEM_malloc_arrayN(totvert, sizeof(float[3]), "ccgDM_getPBVH vertCos");
deformdm->getVertCos(deformdm, vertCos);
BKE_pbvh_apply_vertCos(ccgdm->pbvh, vertCos, totvert);
MEM_freeN(vertCos);
}
}
if (ccgdm->pbvh != NULL) {
pbvh_show_diffuse_color_set(ccgdm->pbvh, ob->sculpt->show_diffuse_color);
pbvh_show_mask_set(ccgdm->pbvh, ob->sculpt->show_mask);
}
return ccgdm->pbvh;
}
static void ccgDM_recalcTessellation(DerivedMesh *UNUSED(dm))
{
/* Nothing to do: CCG handles creating its own tessfaces */
}
/* WARNING! *MUST* be called in an 'loops_cache_rwlock' protected thread context! */
static void ccgDM_recalcLoopTri(DerivedMesh *dm)
{
MLoopTri *mlooptri = dm->looptris.array;
const int tottri = dm->numPolyData * 2;
int i, poly_index;
DM_ensure_looptri_data(dm);
mlooptri = dm->looptris.array_wip;
BLI_assert(tottri == 0 || mlooptri != NULL);
BLI_assert(poly_to_tri_count(dm->numPolyData, dm->numLoopData) == dm->looptris.num);
BLI_assert(tottri == dm->looptris.num);
for (i = 0, poly_index = 0; i < tottri; i += 2, poly_index += 1) {
MLoopTri *lt;
lt = &mlooptri[i];
/* quad is (0, 3, 2, 1) */
lt->tri[0] = (poly_index * 4) + 0;
lt->tri[1] = (poly_index * 4) + 2;
lt->tri[2] = (poly_index * 4) + 3;
lt->poly = poly_index;
lt = &mlooptri[i + 1];
lt->tri[0] = (poly_index * 4) + 0;
lt->tri[1] = (poly_index * 4) + 1;
lt->tri[2] = (poly_index * 4) + 2;
lt->poly = poly_index;
}
BLI_assert(dm->looptris.array == NULL);
atomic_cas_ptr((void **)&dm->looptris.array, dm->looptris.array, dm->looptris.array_wip);
dm->looptris.array_wip = NULL;
}
static void ccgDM_calcNormals(DerivedMesh *dm)
{
/* Nothing to do: CCG calculates normals during drawing */
dm->dirty &= ~DM_DIRTY_NORMALS;
}
static void set_default_ccgdm_callbacks(CCGDerivedMesh *ccgdm)
{
ccgdm->dm.getMinMax = ccgDM_getMinMax;
ccgdm->dm.getNumVerts = ccgDM_getNumVerts;
ccgdm->dm.getNumEdges = ccgDM_getNumEdges;
ccgdm->dm.getNumLoops = ccgDM_getNumLoops;
/* reuse of ccgDM_getNumTessFaces is intentional here: subsurf polys are just created from tessfaces */
ccgdm->dm.getNumPolys = ccgDM_getNumPolys;
ccgdm->dm.getNumTessFaces = ccgDM_getNumTessFaces;
ccgdm->dm.getVert = ccgDM_getFinalVert;
ccgdm->dm.getEdge = ccgDM_getFinalEdge;
ccgdm->dm.getTessFace = ccgDM_getFinalFace;
ccgdm->dm.getVertCo = ccgDM_getFinalVertCo;
ccgdm->dm.getVertNo = ccgDM_getFinalVertNo;
ccgdm->dm.copyVertArray = ccgDM_copyFinalVertArray;
ccgdm->dm.copyEdgeArray = ccgDM_copyFinalEdgeArray;
ccgdm->dm.copyTessFaceArray = ccgDM_copyFinalFaceArray;
ccgdm->dm.copyLoopArray = ccgDM_copyFinalLoopArray;
ccgdm->dm.copyPolyArray = ccgDM_copyFinalPolyArray;
ccgdm->dm.getVertData = ccgDM_get_vert_data;
ccgdm->dm.getEdgeData = ccgDM_get_edge_data;
ccgdm->dm.getTessFaceData = ccgDM_get_tessface_data;
ccgdm->dm.getPolyData = ccgDM_get_poly_data;
ccgdm->dm.getVertDataArray = ccgDM_get_vert_data_layer;
ccgdm->dm.getEdgeDataArray = ccgDM_get_edge_data_layer;
ccgdm->dm.getTessFaceDataArray = ccgDM_get_tessface_data_layer;
ccgdm->dm.getPolyDataArray = ccgDM_get_poly_data_layer;
ccgdm->dm.getNumGrids = ccgDM_getNumGrids;
ccgdm->dm.getGridSize = ccgDM_getGridSize;
ccgdm->dm.getGridData = ccgDM_getGridData;
ccgdm->dm.getGridOffset = ccgDM_getGridOffset;
ccgdm->dm.getGridKey = ccgDM_getGridKey;
ccgdm->dm.getGridFlagMats = ccgDM_getGridFlagMats;
ccgdm->dm.getGridHidden = ccgDM_getGridHidden;
ccgdm->dm.getPolyMap = ccgDM_getPolyMap;
ccgdm->dm.getPBVH = ccgDM_getPBVH;
ccgdm->dm.calcNormals = ccgDM_calcNormals;
ccgdm->dm.calcLoopNormals = CDDM_calc_loop_normals;
ccgdm->dm.calcLoopNormalsSpaceArray = CDDM_calc_loop_normals_spacearr;
ccgdm->dm.calcLoopTangents = DM_calc_loop_tangents;
ccgdm->dm.recalcTessellation = ccgDM_recalcTessellation;
ccgdm->dm.recalcLoopTri = ccgDM_recalcLoopTri;
ccgdm->dm.getVertCos = ccgdm_getVertCos;
ccgdm->dm.foreachMappedVert = ccgDM_foreachMappedVert;
ccgdm->dm.foreachMappedEdge = ccgDM_foreachMappedEdge;
ccgdm->dm.foreachMappedLoop = ccgDM_foreachMappedLoop;
ccgdm->dm.foreachMappedFaceCenter = ccgDM_foreachMappedFaceCenter;
ccgdm->dm.release = ccgDM_release;
}
static void create_ccgdm_maps(CCGDerivedMesh *ccgdm,
CCGSubSurf *ss)
{
CCGVertIterator vi;
CCGEdgeIterator ei;
CCGFaceIterator fi;
int totvert, totedge, totface;
totvert = ccgSubSurf_getNumVerts(ss);
ccgdm->vertMap = MEM_mallocN(totvert * sizeof(*ccgdm->vertMap), "vertMap");
for (ccgSubSurf_initVertIterator(ss, &vi);
!ccgVertIterator_isStopped(&vi);
ccgVertIterator_next(&vi))
{
CCGVert *v = ccgVertIterator_getCurrent(&vi);
ccgdm->vertMap[POINTER_AS_INT(ccgSubSurf_getVertVertHandle(v))].vert = v;
}
totedge = ccgSubSurf_getNumEdges(ss);
ccgdm->edgeMap = MEM_mallocN(totedge * sizeof(*ccgdm->edgeMap), "edgeMap");
for (ccgSubSurf_initEdgeIterator(ss, &ei);
!ccgEdgeIterator_isStopped(&ei);
ccgEdgeIterator_next(&ei))
{
CCGEdge *e = ccgEdgeIterator_getCurrent(&ei);
ccgdm->edgeMap[POINTER_AS_INT(ccgSubSurf_getEdgeEdgeHandle(e))].edge = e;
}
totface = ccgSubSurf_getNumFaces(ss);
ccgdm->faceMap = MEM_mallocN(totface * sizeof(*ccgdm->faceMap), "faceMap");
for (ccgSubSurf_initFaceIterator(ss, &fi);
!ccgFaceIterator_isStopped(&fi);
ccgFaceIterator_next(&fi))
{
CCGFace *f = ccgFaceIterator_getCurrent(&fi);
ccgdm->faceMap[POINTER_AS_INT(ccgSubSurf_getFaceFaceHandle(f))].face = f;
}
}
/* Fill in all geometry arrays making it possible to access any
* hires data from the CPU.
*/
static void set_ccgdm_all_geometry(CCGDerivedMesh *ccgdm,
CCGSubSurf *ss,
DerivedMesh *dm,
bool useSubsurfUv)
{
const int totvert = ccgSubSurf_getNumVerts(ss);
const int totedge = ccgSubSurf_getNumEdges(ss);
const int totface = ccgSubSurf_getNumFaces(ss);
int index;
int i;
int vertNum = 0, edgeNum = 0, faceNum = 0;
int *vertOrigIndex, *faceOrigIndex, *polyOrigIndex, *base_polyOrigIndex, *edgeOrigIndex;
short *edgeFlags = ccgdm->edgeFlags;
DMFlagMat *faceFlags = ccgdm->faceFlags;
int *polyidx = NULL;
#ifndef USE_DYNSIZE
int *loopidx = NULL, *vertidx = NULL;
BLI_array_declare(loopidx);
BLI_array_declare(vertidx);
#endif
int loopindex, loopindex2;
int edgeSize;
int gridSize;
int gridFaces, gridCuts;
int gridSideEdges;
int gridInternalEdges;
WeightTable wtable = {NULL};
MEdge *medge = NULL;
MPoly *mpoly = NULL;
bool has_edge_cd;
edgeSize = ccgSubSurf_getEdgeSize(ss);
gridSize = ccgSubSurf_getGridSize(ss);
gridFaces = gridSize - 1;
gridCuts = gridSize - 2;
/*gridInternalVerts = gridSideVerts * gridSideVerts; - as yet, unused */
gridSideEdges = gridSize - 1;
gridInternalEdges = (gridSideEdges - 1) * gridSideEdges * 2;
/* mvert = dm->getVertArray(dm); */ /* UNUSED */
medge = dm->getEdgeArray(dm);
/* mface = dm->getTessFaceArray(dm); */ /* UNUSED */
mpoly = CustomData_get_layer(&dm->polyData, CD_MPOLY);
base_polyOrigIndex = CustomData_get_layer(&dm->polyData, CD_ORIGINDEX);
vertOrigIndex = DM_get_vert_data_layer(&ccgdm->dm, CD_ORIGINDEX);
edgeOrigIndex = DM_get_edge_data_layer(&ccgdm->dm, CD_ORIGINDEX);
faceOrigIndex = DM_get_tessface_data_layer(&ccgdm->dm, CD_ORIGINDEX);
polyOrigIndex = DM_get_poly_data_layer(&ccgdm->dm, CD_ORIGINDEX);
has_edge_cd = ((ccgdm->dm.edgeData.totlayer - (edgeOrigIndex ? 1 : 0)) != 0);
loopindex = loopindex2 = 0; /* current loop index */
for (index = 0; index < totface; index++) {
CCGFace *f = ccgdm->faceMap[index].face;
int numVerts = ccgSubSurf_getFaceNumVerts(f);
int numFinalEdges = numVerts * (gridSideEdges + gridInternalEdges);
int origIndex = POINTER_AS_INT(ccgSubSurf_getFaceFaceHandle(f));
int g2_wid = gridCuts + 2;
float *w, *w2;
int s, x, y;
#ifdef USE_DYNSIZE
int loopidx[numVerts], vertidx[numVerts];
#endif
w = get_ss_weights(&wtable, gridCuts, numVerts);
ccgdm->faceMap[index].startVert = vertNum;
ccgdm->faceMap[index].startEdge = edgeNum;
ccgdm->faceMap[index].startFace = faceNum;
faceFlags->flag = mpoly ? mpoly[origIndex].flag : 0;
faceFlags->mat_nr = mpoly ? mpoly[origIndex].mat_nr : 0;
faceFlags++;
/* set the face base vert */
*((int *)ccgSubSurf_getFaceUserData(ss, f)) = vertNum;
#ifndef USE_DYNSIZE
BLI_array_clear(loopidx);
BLI_array_grow_items(loopidx, numVerts);
#endif
for (s = 0; s < numVerts; s++) {
loopidx[s] = loopindex++;
}
#ifndef USE_DYNSIZE
BLI_array_clear(vertidx);
BLI_array_grow_items(vertidx, numVerts);
#endif
for (s = 0; s < numVerts; s++) {
CCGVert *v = ccgSubSurf_getFaceVert(f, s);
vertidx[s] = POINTER_AS_INT(ccgSubSurf_getVertVertHandle(v));
}
/*I think this is for interpolating the center vert?*/
w2 = w; // + numVerts*(g2_wid-1) * (g2_wid-1); //numVerts*((g2_wid-1) * g2_wid+g2_wid-1);
DM_interp_vert_data(dm, &ccgdm->dm, vertidx, w2,
numVerts, vertNum);
if (vertOrigIndex) {
*vertOrigIndex = ORIGINDEX_NONE;
vertOrigIndex++;
}
vertNum++;
/*interpolate per-vert data*/
for (s = 0; s < numVerts; s++) {
for (x = 1; x < gridFaces; x++) {
w2 = w + s * numVerts * g2_wid * g2_wid + x * numVerts;
DM_interp_vert_data(dm, &ccgdm->dm, vertidx, w2,
numVerts, vertNum);
if (vertOrigIndex) {
*vertOrigIndex = ORIGINDEX_NONE;
vertOrigIndex++;
}
vertNum++;
}
}
/*interpolate per-vert data*/
for (s = 0; s < numVerts; s++) {
for (y = 1; y < gridFaces; y++) {
for (x = 1; x < gridFaces; x++) {
w2 = w + s * numVerts * g2_wid * g2_wid + (y * g2_wid + x) * numVerts;
DM_interp_vert_data(dm, &ccgdm->dm, vertidx, w2,
numVerts, vertNum);
if (vertOrigIndex) {
*vertOrigIndex = ORIGINDEX_NONE;
vertOrigIndex++;
}
vertNum++;
}
}
}
if (edgeOrigIndex) {
for (i = 0; i < numFinalEdges; ++i) {
edgeOrigIndex[edgeNum + i] = ORIGINDEX_NONE;
}
}
for (s = 0; s < numVerts; s++) {
/*interpolate per-face data*/
for (y = 0; y < gridFaces; y++) {
for (x = 0; x < gridFaces; x++) {
w2 = w + s * numVerts * g2_wid * g2_wid + (y * g2_wid + x) * numVerts;
CustomData_interp(&dm->loopData, &ccgdm->dm.loopData,
loopidx, w2, NULL, numVerts, loopindex2);
loopindex2++;
w2 = w + s * numVerts * g2_wid * g2_wid + ((y + 1) * g2_wid + (x)) * numVerts;
CustomData_interp(&dm->loopData, &ccgdm->dm.loopData,
loopidx, w2, NULL, numVerts, loopindex2);
loopindex2++;
w2 = w + s * numVerts * g2_wid * g2_wid + ((y + 1) * g2_wid + (x + 1)) * numVerts;
CustomData_interp(&dm->loopData, &ccgdm->dm.loopData,
loopidx, w2, NULL, numVerts, loopindex2);
loopindex2++;
w2 = w + s * numVerts * g2_wid * g2_wid + ((y) * g2_wid + (x + 1)) * numVerts;
CustomData_interp(&dm->loopData, &ccgdm->dm.loopData,
loopidx, w2, NULL, numVerts, loopindex2);
loopindex2++;
/*copy over poly data, e.g. mtexpoly*/
CustomData_copy_data(&dm->polyData, &ccgdm->dm.polyData, origIndex, faceNum, 1);
/*set original index data*/
if (faceOrigIndex) {
/* reference the index in 'polyOrigIndex' */
*faceOrigIndex = faceNum;
faceOrigIndex++;
}
if (polyOrigIndex) {
*polyOrigIndex = base_polyOrigIndex ? base_polyOrigIndex[origIndex] : origIndex;
polyOrigIndex++;
}
ccgdm->reverseFaceMap[faceNum] = index;
/* This is a simple one to one mapping, here... */
if (polyidx) {
polyidx[faceNum] = faceNum;
}
faceNum++;
}
}
}
edgeNum += numFinalEdges;
}
for (index = 0; index < totedge; ++index) {
CCGEdge *e = ccgdm->edgeMap[index].edge;
int numFinalEdges = edgeSize - 1;
int mapIndex = ccgDM_getEdgeMapIndex(ss, e);
int x;
int vertIdx[2];
int edgeIdx = POINTER_AS_INT(ccgSubSurf_getEdgeEdgeHandle(e));
CCGVert *v;
v = ccgSubSurf_getEdgeVert0(e);
vertIdx[0] = POINTER_AS_INT(ccgSubSurf_getVertVertHandle(v));
v = ccgSubSurf_getEdgeVert1(e);
vertIdx[1] = POINTER_AS_INT(ccgSubSurf_getVertVertHandle(v));
ccgdm->edgeMap[index].startVert = vertNum;
ccgdm->edgeMap[index].startEdge = edgeNum;
if (edgeIdx >= 0 && edgeFlags)
edgeFlags[edgeIdx] = medge[edgeIdx].flag;
/* set the edge base vert */
*((int *)ccgSubSurf_getEdgeUserData(ss, e)) = vertNum;
for (x = 1; x < edgeSize - 1; x++) {
float w[2];
w[1] = (float) x / (edgeSize - 1);
w[0] = 1 - w[1];
DM_interp_vert_data(dm, &ccgdm->dm, vertIdx, w, 2, vertNum);
if (vertOrigIndex) {
*vertOrigIndex = ORIGINDEX_NONE;
vertOrigIndex++;
}
vertNum++;
}
if (has_edge_cd) {
BLI_assert(edgeIdx >= 0 && edgeIdx < dm->getNumEdges(dm));
for (i = 0; i < numFinalEdges; ++i) {
CustomData_copy_data(&dm->edgeData, &ccgdm->dm.edgeData, edgeIdx, edgeNum + i, 1);
}
}
if (edgeOrigIndex) {
for (i = 0; i < numFinalEdges; ++i) {
edgeOrigIndex[edgeNum + i] = mapIndex;
}
}
edgeNum += numFinalEdges;
}
if (useSubsurfUv) {
CustomData *ldata = &ccgdm->dm.loopData;
CustomData *dmldata = &dm->loopData;
int numlayer = CustomData_number_of_layers(ldata, CD_MLOOPUV);
int dmnumlayer = CustomData_number_of_layers(dmldata, CD_MLOOPUV);
for (i = 0; i < numlayer && i < dmnumlayer; i++)
set_subsurf_uv(ss, dm, &ccgdm->dm, i);
}
for (index = 0; index < totvert; ++index) {
CCGVert *v = ccgdm->vertMap[index].vert;
int mapIndex = ccgDM_getVertMapIndex(ccgdm->ss, v);
int vertIdx;
vertIdx = POINTER_AS_INT(ccgSubSurf_getVertVertHandle(v));
ccgdm->vertMap[index].startVert = vertNum;
/* set the vert base vert */
*((int *) ccgSubSurf_getVertUserData(ss, v)) = vertNum;
DM_copy_vert_data(dm, &ccgdm->dm, vertIdx, vertNum, 1);
if (vertOrigIndex) {
*vertOrigIndex = mapIndex;
vertOrigIndex++;
}
vertNum++;
}
#ifndef USE_DYNSIZE
BLI_array_free(vertidx);
BLI_array_free(loopidx);
#endif
free_ss_weights(&wtable);
BLI_assert(vertNum == ccgSubSurf_getNumFinalVerts(ss));
BLI_assert(edgeNum == ccgSubSurf_getNumFinalEdges(ss));
BLI_assert(loopindex2 == ccgSubSurf_getNumFinalFaces(ss) * 4);
BLI_assert(faceNum == ccgSubSurf_getNumFinalFaces(ss));
}
/* Fill in only geometry arrays needed for the GPU tessellation. */
static void set_ccgdm_gpu_geometry(CCGDerivedMesh *ccgdm, DerivedMesh *dm)
{
const int totface = dm->getNumPolys(dm);
MPoly *mpoly = CustomData_get_layer(&dm->polyData, CD_MPOLY);
int index;
DMFlagMat *faceFlags = ccgdm->faceFlags;
for (index = 0; index < totface; index++) {
faceFlags->flag = mpoly ? mpoly[index].flag : 0;
faceFlags->mat_nr = mpoly ? mpoly[index].mat_nr : 0;
faceFlags++;
}
/* TODO(sergey): Fill in edge flags. */
}
static CCGDerivedMesh *getCCGDerivedMesh(CCGSubSurf *ss,
int drawInteriorEdges,
int useSubsurfUv,
DerivedMesh *dm,
bool use_gpu_backend)
{
#ifdef WITH_OPENSUBDIV
const int totedge = dm->getNumEdges(dm);
const int totface = dm->getNumPolys(dm);
#else
const int totedge = ccgSubSurf_getNumEdges(ss);
const int totface = ccgSubSurf_getNumFaces(ss);
#endif
CCGDerivedMesh *ccgdm = MEM_callocN(sizeof(*ccgdm), "ccgdm");
if (use_gpu_backend == false) {
BLI_assert(totedge == ccgSubSurf_getNumEdges(ss));
BLI_assert(totface == ccgSubSurf_getNumFaces(ss));
DM_from_template(&ccgdm->dm, dm, DM_TYPE_CCGDM,
ccgSubSurf_getNumFinalVerts(ss),
ccgSubSurf_getNumFinalEdges(ss),
0,
ccgSubSurf_getNumFinalFaces(ss) * 4,
ccgSubSurf_getNumFinalFaces(ss));
CustomData_free_layer_active(&ccgdm->dm.polyData, CD_NORMAL,
ccgdm->dm.numPolyData);
ccgdm->reverseFaceMap =
MEM_callocN(sizeof(int) * ccgSubSurf_getNumFinalFaces(ss),
"reverseFaceMap");
create_ccgdm_maps(ccgdm, ss);
}
else {
DM_from_template(&ccgdm->dm, dm, DM_TYPE_CCGDM,
0, 0, 0, 0, dm->getNumPolys(dm));
CustomData_copy_data(&dm->polyData,
&ccgdm->dm.polyData,
0, 0, dm->getNumPolys(dm));
}
set_default_ccgdm_callbacks(ccgdm);
ccgdm->ss = ss;
ccgdm->drawInteriorEdges = drawInteriorEdges;
ccgdm->useSubsurfUv = useSubsurfUv;
ccgdm->useGpuBackend = use_gpu_backend;
/* CDDM hack. */
ccgdm->edgeFlags = MEM_callocN(sizeof(short) * totedge, "edgeFlags");
ccgdm->faceFlags = MEM_callocN(sizeof(DMFlagMat) * totface, "faceFlags");
if (use_gpu_backend == false) {
set_ccgdm_all_geometry(ccgdm, ss, dm, useSubsurfUv != 0);
}
else {
set_ccgdm_gpu_geometry(ccgdm, dm);
}
ccgdm->dm.numVertData = ccgSubSurf_getNumFinalVerts(ss);
ccgdm->dm.numEdgeData = ccgSubSurf_getNumFinalEdges(ss);
ccgdm->dm.numPolyData = ccgSubSurf_getNumFinalFaces(ss);
ccgdm->dm.numLoopData = ccgdm->dm.numPolyData * 4;
ccgdm->dm.numTessFaceData = 0;
BLI_mutex_init(&ccgdm->loops_cache_lock);
BLI_rw_mutex_init(&ccgdm->origindex_cache_rwlock);
return ccgdm;
}
/***/
static bool subsurf_use_gpu_backend(SubsurfFlags flags)
{
#ifdef WITH_OPENSUBDIV
/* Use GPU backend if it's a last modifier in the stack
* and user chose to use any of the OSD compute devices,
* but also check if GPU has all needed features.
*/
return
(flags & SUBSURF_USE_GPU_BACKEND) != 0 &&
(U.opensubdiv_compute_type != USER_OPENSUBDIV_COMPUTE_NONE);
#else
(void)flags;
return false;
#endif
}
struct DerivedMesh *subsurf_make_derived_from_derived(
struct DerivedMesh *dm,
struct SubsurfModifierData *smd,
struct Scene *scene,
float (*vertCos)[3],
SubsurfFlags flags)
{
const int useSimple = (smd->subdivType == ME_SIMPLE_SUBSURF) ? CCG_SIMPLE_SUBDIV : 0;
const CCGFlags useAging = (smd->flags & eSubsurfModifierFlag_DebugIncr) ? CCG_USE_AGING : 0;
const int useSubsurfUv = (smd->uv_smooth != SUBSURF_UV_SMOOTH_NONE);
const int drawInteriorEdges = !(smd->flags & eSubsurfModifierFlag_ControlEdges);
const bool use_gpu_backend = subsurf_use_gpu_backend(flags);
const bool ignore_simplify = (flags & SUBSURF_IGNORE_SIMPLIFY);
CCGDerivedMesh *result;
/* note: editmode calculation can only run once per
* modifier stack evaluation (uses freed cache) [#36299] */
if (flags & SUBSURF_FOR_EDIT_MODE) {
int levels = (scene != NULL && !ignore_simplify)
? get_render_subsurf_level(&scene->r, smd->levels, false)
: smd->levels;
/* TODO(sergey): Same as emCache below. */
if ((flags & SUBSURF_IN_EDIT_MODE) && smd->mCache) {
ccgSubSurf_free(smd->mCache);
smd->mCache = NULL;
}
smd->emCache = _getSubSurf(smd->emCache, levels, 3, useSimple | useAging | CCG_CALC_NORMALS);
#ifdef WITH_OPENSUBDIV
ccgSubSurf_setSkipGrids(smd->emCache, use_gpu_backend);
#endif
ss_sync_from_derivedmesh(smd->emCache, dm, vertCos, useSimple, useSubsurfUv);
result = getCCGDerivedMesh(smd->emCache,
drawInteriorEdges,
useSubsurfUv, dm, use_gpu_backend);
}
else if (flags & SUBSURF_USE_RENDER_PARAMS) {
/* Do not use cache in render mode. */
CCGSubSurf *ss;
int levels = (scene != NULL && !ignore_simplify)
? get_render_subsurf_level(&scene->r, smd->renderLevels, true)
: smd->renderLevels;
if (levels == 0)
return dm;
ss = _getSubSurf(NULL, levels, 3, useSimple | CCG_USE_ARENA | CCG_CALC_NORMALS);
ss_sync_from_derivedmesh(ss, dm, vertCos, useSimple, useSubsurfUv);
result = getCCGDerivedMesh(ss,
drawInteriorEdges, useSubsurfUv, dm, false);
result->freeSS = 1;
}
else {
int useIncremental = (smd->flags & eSubsurfModifierFlag_Incremental);
int levels = (scene != NULL && !ignore_simplify)
? get_render_subsurf_level(&scene->r, smd->levels, false)
: smd->levels;
CCGSubSurf *ss;
/* It is quite possible there is a much better place to do this. It
* depends a bit on how rigorously we expect this function to never
* be called in editmode. In semi-theory we could share a single
* cache, but the handles used inside and outside editmode are not
* the same so we would need some way of converting them. Its probably
* not worth the effort. But then why am I even writing this long
* comment that no one will read? Hmmm. - zr
*
* Addendum: we can't really ensure that this is never called in edit
* mode, so now we have a parameter to verify it. - brecht
*/
if (!(flags & SUBSURF_IN_EDIT_MODE) && smd->emCache) {
ccgSubSurf_free(smd->emCache);
smd->emCache = NULL;
}
if (useIncremental && (flags & SUBSURF_IS_FINAL_CALC)) {
smd->mCache = ss = _getSubSurf(smd->mCache, levels, 3, useSimple | useAging | CCG_CALC_NORMALS);
ss_sync_from_derivedmesh(ss, dm, vertCos, useSimple, useSubsurfUv);
result = getCCGDerivedMesh(smd->mCache,
drawInteriorEdges,
useSubsurfUv, dm, false);
}
else {
CCGFlags ccg_flags = useSimple | CCG_USE_ARENA | CCG_CALC_NORMALS;
CCGSubSurf *prevSS = NULL;
if (smd->mCache && (flags & SUBSURF_IS_FINAL_CALC)) {
#ifdef WITH_OPENSUBDIV
/* With OpenSubdiv enabled we always tries to re-use previous
* subsurf structure in order to save computation time since
* re-creation is rather a complicated business.
*
* TODO(sergey): There was a good eason why final calculation
* used to free entirely cached subsurf structure. reason of
* this is to be investigated still to be sure we don't have
* regressions here.
*/
if (use_gpu_backend) {
prevSS = smd->mCache;
}
else
#endif
{
ccgSubSurf_free(smd->mCache);
smd->mCache = NULL;
}
}
if (flags & SUBSURF_ALLOC_PAINT_MASK)
ccg_flags |= CCG_ALLOC_MASK;
ss = _getSubSurf(prevSS, levels, 3, ccg_flags);
#ifdef WITH_OPENSUBDIV
ccgSubSurf_setSkipGrids(ss, use_gpu_backend);
#endif
ss_sync_from_derivedmesh(ss, dm, vertCos, useSimple, useSubsurfUv);
result = getCCGDerivedMesh(ss, drawInteriorEdges, useSubsurfUv, dm, use_gpu_backend);
if (flags & SUBSURF_IS_FINAL_CALC)
smd->mCache = ss;
else
result->freeSS = 1;
if (flags & SUBSURF_ALLOC_PAINT_MASK)
ccgSubSurf_setNumLayers(ss, 4);
}
}
return (DerivedMesh *)result;
}
void subsurf_calculate_limit_positions(Mesh *me, float (*r_positions)[3])
{
/* Finds the subsurf limit positions for the verts in a mesh
* and puts them in an array of floats. Please note that the
* calculated vert positions is incorrect for the verts
* on the boundary of the mesh.
*/
CCGSubSurf *ss = _getSubSurf(NULL, 1, 3, CCG_USE_ARENA);
float edge_sum[3], face_sum[3];
CCGVertIterator vi;
DerivedMesh *dm = CDDM_from_mesh(me);
ss_sync_from_derivedmesh(ss, dm, NULL, 0, 0);
for (ccgSubSurf_initVertIterator(ss, &vi); !ccgVertIterator_isStopped(&vi); ccgVertIterator_next(&vi)) {
CCGVert *v = ccgVertIterator_getCurrent(&vi);
int idx = POINTER_AS_INT(ccgSubSurf_getVertVertHandle(v));
int N = ccgSubSurf_getVertNumEdges(v);
int numFaces = ccgSubSurf_getVertNumFaces(v);
float *co;
int i;
zero_v3(edge_sum);
zero_v3(face_sum);
for (i = 0; i < N; i++) {
CCGEdge *e = ccgSubSurf_getVertEdge(v, i);
add_v3_v3v3(edge_sum, edge_sum, ccgSubSurf_getEdgeData(ss, e, 1));
}
for (i = 0; i < numFaces; i++) {
CCGFace *f = ccgSubSurf_getVertFace(v, i);
add_v3_v3(face_sum, ccgSubSurf_getFaceCenterData(f));
}
/* ad-hoc correction for boundary vertices, to at least avoid them
* moving completely out of place (brecht) */
if (numFaces && numFaces != N)
mul_v3_fl(face_sum, (float)N / (float)numFaces);
co = ccgSubSurf_getVertData(ss, v);
r_positions[idx][0] = (co[0] * N * N + edge_sum[0] * 4 + face_sum[0]) / (N * (N + 5));
r_positions[idx][1] = (co[1] * N * N + edge_sum[1] * 4 + face_sum[1]) / (N * (N + 5));
r_positions[idx][2] = (co[2] * N * N + edge_sum[2] * 4 + face_sum[2]) / (N * (N + 5));
}
ccgSubSurf_free(ss);
dm->release(dm);
}
bool subsurf_has_edges(DerivedMesh *dm)
{
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *) dm;
#ifdef WITH_OPENSUBDIV
if (ccgdm->useGpuBackend) {
return true;
}
#else
(void)ccgdm;
#endif
return dm->getNumEdges(dm) != 0;
}
bool subsurf_has_faces(DerivedMesh *dm)
{
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *) dm;
#ifdef WITH_OPENSUBDIV
if (ccgdm->useGpuBackend) {
return true;
}
#else
(void)ccgdm;
#endif
return dm->getNumPolys(dm) != 0;
}
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