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

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/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* 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.
*
* The Original Code is: all of this file.
*
* Contributor(s): none yet.
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file blender/blenkernel/intern/subsurf_ccg.c
* \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_global.h"
#include "BKE_mesh.h"
#include "BKE_mesh_mapping.h"
#include "BKE_modifier.h"
#include "BKE_multires.h"
#include "BKE_paint.h"
#include "BKE_scene.h"
#include "BKE_subsurf.h"
#ifndef USE_DYNSIZE
# include "BLI_array.h"
#endif
#include "GPU_draw.h"
#include "GPU_glew.h"
#include "GPU_buffers.h"
#include "GPU_shader.h"
#include "GPU_basic_shader.h"
#include "CCGSubSurf.h"
#ifdef WITH_OPENSUBDIV
# include "opensubdiv_capi.h"
#endif
/* assumes MLoop's are layed 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->f == fi)
break;
}
fverts[j] = SET_UINT_IN_POINTER(mpoly[nv->f].loopstart + nv->tfindex);
}
}
static int ss_sync_from_uv(CCGSubSurf *ss, CCGSubSurf *origss, DerivedMesh *dm, MLoopUV *mloopuv)
{
MPoly *mpoly = dm->getPolyArray(dm);
MLoop *mloop = dm->getLoopArray(dm);
MVert *mvert = dm->getVertArray(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 creaseFactor = (float)ccgSubSurf_getSubdivisionLevels(ss);
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, see code below with ME_VERT_MERGED
* 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) || ((mvert + i)->flag & ME_VERT_MERGED);
for (v = BKE_mesh_uv_vert_map_get_vert(vmap, i); v; v = v->next) {
if (v->separate) {
CCGVert *ssv;
int loopid = mpoly[v->f].loopstart + v->tfindex;
CCGVertHDL vhdl = SET_INT_IN_POINTER(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, SET_INT_IN_POINTER(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 = GET_UINT_FROM_POINTER(fverts[j_next]);
unsigned int v1 = GET_UINT_FROM_POINTER(fverts[j]);
MVert *mv0 = mvert + (ml[j_next].v);
MVert *mv1 = mvert + (ml[j].v);
if (BLI_edgeset_add(eset, v0, v1)) {
CCGEdge *e, *orige = ccgSubSurf_getFaceEdge(origf, j_next);
CCGEdgeHDL ehdl = SET_INT_IN_POINTER(mp->loopstart + j_next);
float crease;
if ((mv0->flag & mv1->flag) & ME_VERT_MERGED)
crease = creaseFactor;
else
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, SET_INT_IN_POINTER(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[GET_INT_FROM_POINTER(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[GET_INT_FROM_POINTER(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, SET_INT_IN_POINTER(i), vertexCos[i], 0, &v);
}
else {
ccgSubSurf_syncVert(ss, SET_INT_IN_POINTER(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, SET_INT_IN_POINTER(i), SET_UINT_IN_POINTER(me->v1),
SET_UINT_IN_POINTER(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] = SET_UINT_IN_POINTER(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, SET_INT_IN_POINTER(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;
/* code added in bmesh but works correctly without, commenting - campbell */
#if 0
int lasti, previ;
i = lastface;
lasti = 0;
while (1) {
previ = i;
if (ccgdm->faceMap[i].startEdge >= edgeNum) {
i -= fabsf(i - lasti) / 2.0f;
}
else if (ccgdm->faceMap[i].startEdge < edgeNum) {
i += fabsf(i - lasti) / 2.0f;
}
else {
break;
}
if (i < 0) {
i = 0;
break;
}
if (i > lastface) {
i = lastface;
break;
}
if (i == lasti)
break;
lasti = previ;
}
i = i > 0 ? i - 1 : i;
#endif
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 functon */
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 functon */
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 = GET_INT_FROM_POINTER(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 = GET_UINT_FROM_POINTER(BLI_edgehash_lookup(ccgdm->ehash, v1, v2));
ml++;
ml->v = v2;
ml->e = GET_UINT_FROM_POINTER(BLI_edgehash_lookup(ccgdm->ehash, v2, v3));
ml++;
ml->v = v3;
ml->e = GET_UINT_FROM_POINTER(BLI_edgehash_lookup(ccgdm->ehash, v3, v4));
ml++;
ml->v = v4;
ml->e = GET_UINT_FROM_POINTER(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, SET_INT_IN_POINTER(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[GET_INT_FROM_POINTER(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[GET_INT_FROM_POINTER(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[GET_INT_FROM_POINTER(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 ccgDM_drawVerts(DerivedMesh *dm)
{
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *) dm;
CCGSubSurf *ss = ccgdm->ss;
int edgeSize = ccgSubSurf_getEdgeSize(ss);
int gridSize = ccgSubSurf_getGridSize(ss);
CCGVertIterator vi;
CCGEdgeIterator ei;
CCGFaceIterator fi;
glBegin(GL_POINTS);
for (ccgSubSurf_initVertIterator(ss, &vi); !ccgVertIterator_isStopped(&vi); ccgVertIterator_next(&vi)) {
CCGVert *v = ccgVertIterator_getCurrent(&vi);
glVertex3fv(ccgSubSurf_getVertData(ss, v));
}
for (ccgSubSurf_initEdgeIterator(ss, &ei); !ccgEdgeIterator_isStopped(&ei); ccgEdgeIterator_next(&ei)) {
CCGEdge *e = ccgEdgeIterator_getCurrent(&ei);
int x;
for (x = 1; x < edgeSize - 1; x++)
glVertex3fv(ccgSubSurf_getEdgeData(ss, e, x));
}
for (ccgSubSurf_initFaceIterator(ss, &fi); !ccgFaceIterator_isStopped(&fi); ccgFaceIterator_next(&fi)) {
CCGFace *f = ccgFaceIterator_getCurrent(&fi);
int x, y, S, numVerts = ccgSubSurf_getFaceNumVerts(f);
glVertex3fv(ccgSubSurf_getFaceCenterData(f));
for (S = 0; S < numVerts; S++)
for (x = 1; x < gridSize - 1; x++)
glVertex3fv(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++)
glVertex3fv(ccgSubSurf_getFaceGridData(ss, f, S, x, y));
}
glEnd();
}
static void 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_drawEdges(DerivedMesh *dm, bool drawLooseEdges, bool drawAllEdges)
{
GPUDrawObject *gdo;
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *) dm;
#ifdef WITH_OPENSUBDIV
if (ccgdm->useGpuBackend) {
/* TODO(sergey): We currently only support all edges drawing. */
if (ccgSubSurf_prepareGLMesh(ccgdm->ss, true, -1)) {
ccgSubSurf_drawGLMesh(ccgdm->ss, false, -1, -1);
}
return;
}
#endif
ccgdm_pbvh_update(ccgdm);
/* old debug feature for edges, unsupported for now */
#if 0
int useAging = 0;
if (!(G.f & G_BACKBUFSEL)) {
CCGSubSurf *ss = ccgdm->ss;
ccgSubSurf_getUseAgeCounts(ss, &useAging, NULL, NULL, NULL);
/* it needs some way to upload this to VBO now */
if (useAging) {
int ageCol = 255 - ccgSubSurf_getEdgeAge(ss, e) * 4;
glColor3ub(0, ageCol > 0 ? ageCol : 0, 0);
}
}
#endif
GPU_edge_setup(dm);
gdo = dm->drawObject;
if (gdo->edges && gdo->points) {
if (drawAllEdges && drawLooseEdges) {
GPU_buffer_draw_elements(gdo->edges, GL_LINES, 0, (gdo->totedge - gdo->totinterior) * 2);
}
else if (drawAllEdges) {
GPU_buffer_draw_elements(gdo->edges, GL_LINES, 0, gdo->loose_edge_offset * 2);
}
else {
GPU_buffer_draw_elements(gdo->edges, GL_LINES, 0, gdo->tot_edge_drawn * 2);
GPU_buffer_draw_elements(gdo->edges, GL_LINES, gdo->loose_edge_offset * 2, gdo->tot_loose_edge_drawn * 2);
}
}
if (gdo->edges && ccgdm->drawInteriorEdges) {
GPU_buffer_draw_elements(gdo->edges, GL_LINES, gdo->interior_offset * 2, gdo->totinterior * 2);
}
GPU_buffers_unbind();
}
static void ccgDM_drawLooseEdges(DerivedMesh *dm)
{
int start;
int count;
#ifdef WITH_OPENSUBDIV
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *) dm;
if (ccgdm->useGpuBackend) {
/* TODO(sergey): Needs implementation. */
return;
}
#endif
GPU_edge_setup(dm);
start = (dm->drawObject->loose_edge_offset * 2);
count = (dm->drawObject->interior_offset - dm->drawObject->loose_edge_offset) * 2;
if (count) {
GPU_buffer_draw_elements(dm->drawObject->edges, GL_LINES, start, count);
}
GPU_buffers_unbind();
}
static void ccgDM_NormalFast(float *a, float *b, float *c, float *d, float no[3])
{
float a_cX = c[0] - a[0], a_cY = c[1] - a[1], a_cZ = c[2] - a[2];
float b_dX = d[0] - b[0], b_dY = d[1] - b[1], b_dZ = d[2] - b[2];
no[0] = b_dY * a_cZ - b_dZ * a_cY;
no[1] = b_dZ * a_cX - b_dX * a_cZ;
no[2] = b_dX * a_cY - b_dY * a_cX;
normalize_v3(no);
}
static void ccgDM_glNormalFast(float *a, float *b, float *c, float *d)
{
float a_cX = c[0] - a[0], a_cY = c[1] - a[1], a_cZ = c[2] - a[2];
float b_dX = d[0] - b[0], b_dY = d[1] - b[1], b_dZ = d[2] - b[2];
float no[3];
no[0] = b_dY * a_cZ - b_dZ * a_cY;
no[1] = b_dZ * a_cX - b_dX * a_cZ;
no[2] = b_dX * a_cY - b_dY * a_cX;
/* don't normalize, GL_NORMALIZE is enabled */
glNormal3fv(no);
}
/* Only used by non-editmesh types */
static void ccgDM_buffer_copy_normal(
DerivedMesh *dm, short *varray)
{
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *) dm;
CCGSubSurf *ss = ccgdm->ss;
CCGKey key;
const float (*lnors)[3] = dm->getLoopDataArray(dm, CD_NORMAL);
int gridSize = ccgSubSurf_getGridSize(ss);
int gridFaces = gridSize - 1;
DMFlagMat *faceFlags = ccgdm->faceFlags;
int i, totface = ccgSubSurf_getNumFaces(ss);
int shademodel;
int start = 0;
/* we are in sculpt mode, disable loop normals (since they won't get updated) */
if (ccgdm->pbvh)
lnors = NULL;
CCG_key_top_level(&key, ss);
for (i = 0; i < totface; i++) {
CCGFace *f = ccgdm->faceMap[i].face;
int S, x, y, numVerts = ccgSubSurf_getFaceNumVerts(f);
int index = GET_INT_FROM_POINTER(ccgSubSurf_getFaceFaceHandle(f));
const float (*ln)[3] = NULL;
if (faceFlags) {
shademodel = (lnors || (faceFlags[index].flag & ME_SMOOTH)) ? GL_SMOOTH : GL_FLAT;
}
else {
shademodel = GL_SMOOTH;
}
if (lnors) {
ln = lnors;
lnors += gridFaces * gridFaces * numVerts * 4;
}
for (S = 0; S < numVerts; S++) {
CCGElem *faceGridData = ccgSubSurf_getFaceGridDataArray(ss, f, S);
if (ln) {
/* Can't use quad strips here... */
for (y = 0; y < gridFaces; y ++) {
for (x = 0; x < gridFaces; x ++) {
normal_float_to_short_v3(&varray[start + 0], ln[0]);
normal_float_to_short_v3(&varray[start + 4], ln[3]);
normal_float_to_short_v3(&varray[start + 8], ln[2]);
normal_float_to_short_v3(&varray[start + 12], ln[1]);
start += 16;
ln += 4;
}
}
}
else if (shademodel == GL_SMOOTH) {
for (y = 0; y < gridFaces; y ++) {
for (x = 0; x < gridFaces; x ++) {
float *a = CCG_grid_elem_no(&key, faceGridData, x, y );
float *b = CCG_grid_elem_no(&key, faceGridData, x + 1, y);
float *c = CCG_grid_elem_no(&key, faceGridData, x + 1, y + 1);
float *d = CCG_grid_elem_no(&key, faceGridData, x, y + 1);
normal_float_to_short_v3(&varray[start], a);
normal_float_to_short_v3(&varray[start + 4], b);
normal_float_to_short_v3(&varray[start + 8], c);
normal_float_to_short_v3(&varray[start + 12], d);
start += 16;
}
}
}
else {
for (y = 0; y < gridFaces; y ++) {
for (x = 0; x < gridFaces; x ++) {
float f_no[3];
short f_no_s[3];
float *a = CCG_grid_elem_co(&key, faceGridData, x, y );
float *b = CCG_grid_elem_co(&key, faceGridData, x + 1, y );
float *c = CCG_grid_elem_co(&key, faceGridData, x + 1, y + 1);
float *d = CCG_grid_elem_co(&key, faceGridData, x, y + 1);
ccgDM_NormalFast(a, b, c, d, f_no);
normal_float_to_short_v3(f_no_s, f_no);
copy_v3_v3_short(&varray[start], f_no_s);
copy_v3_v3_short(&varray[start + 4], f_no_s);
copy_v3_v3_short(&varray[start + 8], f_no_s);
copy_v3_v3_short(&varray[start + 12], f_no_s);
start += 16;
}
}
}
}
}
}
typedef struct FaceCount {
unsigned int i_visible;
unsigned int i_hidden;
unsigned int i_tri_visible;
unsigned int i_tri_hidden;
} FaceCount;
/* Only used by non-editmesh types */
static void ccgDM_buffer_copy_triangles(
DerivedMesh *dm, unsigned int *varray,
const int *mat_orig_to_new)
{
GPUBufferMaterial *gpumat, *gpumaterials = dm->drawObject->materials;
const int gpu_totmat = dm->drawObject->totmaterial;
const short dm_totmat = dm->totmat;
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *) dm;
CCGSubSurf *ss = ccgdm->ss;
CCGKey key;
int gridSize = ccgSubSurf_getGridSize(ss);
int gridFaces = gridSize - 1;
DMFlagMat *faceFlags = ccgdm->faceFlags;
int i, totface = ccgSubSurf_getNumFaces(ss);
short mat_nr = -1;
int start;
int totloops = 0;
FaceCount *fc = MEM_mallocN(sizeof(*fc) * gpu_totmat, "gpumaterial.facecount");
CCG_key_top_level(&key, ss);
for (i = 0; i < gpu_totmat; i++) {
fc[i].i_visible = 0;
fc[i].i_tri_visible = 0;
fc[i].i_hidden = gpumaterials[i].totpolys - 1;
fc[i].i_tri_hidden = gpumaterials[i].totelements - 1;
}
for (i = 0; i < totface; i++) {
CCGFace *f = ccgdm->faceMap[i].face;
int S, x, y, numVerts = ccgSubSurf_getFaceNumVerts(f);
int index = GET_INT_FROM_POINTER(ccgSubSurf_getFaceFaceHandle(f));
bool is_hidden;
int mati;
if (faceFlags) {
mat_nr = ME_MAT_NR_TEST(faceFlags[index].mat_nr, dm_totmat);
is_hidden = (faceFlags[index].flag & ME_HIDE) != 0;
}
else {
mat_nr = 0;
is_hidden = false;
}
mati = mat_orig_to_new[mat_nr];
gpumat = dm->drawObject->materials + mati;
if (is_hidden) {
for (S = 0; S < numVerts; S++) {
for (y = 0; y < gridFaces; y++) {
for (x = 0; x < gridFaces; x++) {
start = gpumat->start + fc[mati].i_tri_hidden;
varray[start--] = totloops;
varray[start--] = totloops + 2;
varray[start--] = totloops + 3;
varray[start--] = totloops;
varray[start--] = totloops + 1;
varray[start--] = totloops + 2;
fc[mati].i_tri_hidden -= 6;
totloops += 4;
}
}
}
gpumat->polys[fc[mati].i_hidden--] = i;
}
else {
for (S = 0; S < numVerts; S++) {
for (y = 0; y < gridFaces; y++) {
for (x = 0; x < gridFaces; x++) {
start = gpumat->start + fc[mati].i_tri_visible;
varray[start++] = totloops + 3;
varray[start++] = totloops + 2;
varray[start++] = totloops;
varray[start++] = totloops + 2;
varray[start++] = totloops + 1;
varray[start++] = totloops;
fc[mati].i_tri_visible += 6;
totloops += 4;
}
}
}
gpumat->polys[fc[mati].i_visible++] = i;
}
}
/* set the visible polygons */
for (i = 0; i < gpu_totmat; i++) {
gpumaterials[i].totvisiblepolys = fc[i].i_visible;
}
MEM_freeN(fc);
}
/* Only used by non-editmesh types */
static void ccgDM_buffer_copy_vertex(
DerivedMesh *dm, void *varray_p)
{
float *varray = varray_p;
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *) dm;
CCGSubSurf *ss = ccgdm->ss;
CCGKey key;
int gridSize = ccgSubSurf_getGridSize(ss);
int gridFaces = gridSize - 1;
int i, totface = ccgSubSurf_getNumFaces(ss);
int totedge = ccgSubSurf_getNumEdges(ss);
int start = 0;
int edgeSize = ccgSubSurf_getEdgeSize(ss);
CCG_key_top_level(&key, ss);
for (i = 0; i < totface; i++) {
CCGFace *f = ccgdm->faceMap[i].face;
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 < gridFaces; y++) {
for (x = 0; x < gridFaces; x++) {
float *a = CCG_grid_elem_co(&key, faceGridData, x, y);
float *b = CCG_grid_elem_co(&key, faceGridData, x + 1, y);
float *c = CCG_grid_elem_co(&key, faceGridData, x + 1, y + 1);
float *d = CCG_grid_elem_co(&key, faceGridData, x, y + 1);
copy_v3_v3(&varray[start], a);
copy_v3_v3(&varray[start + 3], b);
copy_v3_v3(&varray[start + 6], c);
copy_v3_v3(&varray[start + 9], d);
start += 12;
}
}
}
}
/* upload loose points */
for (i = 0; i < totedge; i++) {
CCGEdge *e = ccgdm->edgeMap[i].edge;
CCGElem *edgeData = ccgSubSurf_getEdgeDataArray(ss, e);
if (!ccgSubSurf_getEdgeNumFaces(e)) {
int j = 0;
for (j = 0; j < edgeSize; j++) {
copy_v3_v3(&varray[start], CCG_elem_offset_co(&key, edgeData, j));
start += 3;
}
}
}
}
/* Only used by non-editmesh types */
static void ccgDM_buffer_copy_color(
DerivedMesh *dm, unsigned char *varray,
const void *user_data)
{
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *) dm;
CCGSubSurf *ss = ccgdm->ss;
CCGKey key;
const unsigned char *mloopcol = user_data;
int gridSize = ccgSubSurf_getGridSize(ss);
int gridFaces = gridSize - 1;
int i, totface = ccgSubSurf_getNumFaces(ss);
int start = 0;
int iface = 0;
CCG_key_top_level(&key, ss);
for (i = 0; i < totface; i++) {
CCGFace *f = ccgdm->faceMap[i].face;
int S, x, y, numVerts = ccgSubSurf_getFaceNumVerts(f);
for (S = 0; S < numVerts; S++) {
for (y = 0; y < gridFaces; y++) {
for (x = 0; x < gridFaces; x++) {
copy_v4_v4_uchar(&varray[start + 0], &mloopcol[iface * 16 + 0]);
copy_v4_v4_uchar(&varray[start + 4], &mloopcol[iface * 16 + 12]);
copy_v4_v4_uchar(&varray[start + 8], &mloopcol[iface * 16 + 8]);
copy_v4_v4_uchar(&varray[start + 12], &mloopcol[iface * 16 + 4]);
start += 16;
iface++;
}
}
}
}
}
static void ccgDM_buffer_copy_uv(
DerivedMesh *dm, void *varray_p)
{
float *varray = varray_p;
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *) dm;
CCGSubSurf *ss = ccgdm->ss;
CCGKey key;
MLoopUV *mloopuv = DM_get_loop_data_layer(dm, CD_MLOOPUV);
int gridSize = ccgSubSurf_getGridSize(ss);
int gridFaces = gridSize - 1;
int i, totface = ccgSubSurf_getNumFaces(ss);
int start = 0;
CCG_key_top_level(&key, ss);
for (i = 0; i < totface; i++) {
CCGFace *f = ccgdm->faceMap[i].face;
int S, x, y, numVerts = ccgSubSurf_getFaceNumVerts(f);
for (S = 0; S < numVerts; S++) {
for (y = 0; y < gridFaces; y++) {
for (x = 0; x < gridFaces; x++) {
copy_v2_v2(&varray[start + 0], mloopuv[0].uv);
copy_v2_v2(&varray[start + 2], mloopuv[3].uv);
copy_v2_v2(&varray[start + 4], mloopuv[2].uv);
copy_v2_v2(&varray[start + 6], mloopuv[1].uv);
mloopuv += 4;
start += 8;
}
}
}
}
}
static void ccgDM_buffer_copy_uv_texpaint(
DerivedMesh *dm, float *varray)
{
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *) dm;
CCGSubSurf *ss = ccgdm->ss;
CCGKey key;
int gridSize = ccgSubSurf_getGridSize(ss);
int gridFaces = gridSize - 1;
int i, totface = ccgSubSurf_getNumFaces(ss);
int start = 0;
DMFlagMat *faceFlags = ccgdm->faceFlags;
int dm_totmat = dm->totmat;
MLoopUV **mloopuv_base;
MLoopUV *stencil_base;
int stencil;
CCG_key_top_level(&key, ss);
/* should have been checked for before, reassert */
BLI_assert(DM_get_loop_data_layer(dm, CD_MLOOPUV));
mloopuv_base = MEM_mallocN(dm_totmat * sizeof(*mloopuv_base), "texslots");
for (i = 0; i < dm_totmat; i++) {
mloopuv_base[i] = DM_paint_uvlayer_active_get(dm, i);
}
stencil = CustomData_get_stencil_layer(&dm->loopData, CD_MLOOPUV);
stencil_base = CustomData_get_layer_n(&dm->loopData, CD_MLOOPUV, stencil);
start = 0;
for (i = 0; i < totface; i++) {
CCGFace *f = ccgdm->faceMap[i].face;
int S, x, y, numVerts = ccgSubSurf_getFaceNumVerts(f);
int index = GET_INT_FROM_POINTER(ccgSubSurf_getFaceFaceHandle(f));
int matnr;
if (faceFlags) {
matnr = faceFlags[index].mat_nr;
}
else {
matnr = 0;
}
for (S = 0; S < numVerts; S++) {
for (y = 0; y < gridFaces; y++) {
for (x = 0; x < gridFaces; x++) {
/* divide by 4, gives us current loop-index */
unsigned int i_ml = start / 4;
copy_v2_v2(&varray[start + 0], mloopuv_base[matnr][i_ml + 0].uv);
copy_v2_v2(&varray[start + 2], stencil_base[i_ml + 0].uv);
copy_v2_v2(&varray[start + 4], mloopuv_base[matnr][i_ml + 3].uv);
copy_v2_v2(&varray[start + 6], stencil_base[i_ml + 3].uv);
copy_v2_v2(&varray[start + 8], mloopuv_base[matnr][i_ml + 2].uv);
copy_v2_v2(&varray[start + 10], stencil_base[i_ml + 2].uv);
copy_v2_v2(&varray[start + 12], mloopuv_base[matnr][i_ml + 1].uv);
copy_v2_v2(&varray[start + 14], stencil_base[i_ml + 1].uv);
start += 16;
}
}
}
}
MEM_freeN(mloopuv_base);
}
static void ccgDM_buffer_copy_uvedge(
DerivedMesh *dm, float *varray)
{
int i, totpoly;
int start;
const MLoopUV *mloopuv;
#ifndef USE_LOOP_LAYOUT_FAST
const MPoly *mpoly = dm->getPolyArray(dm);
#endif
if ((mloopuv = DM_get_loop_data_layer(dm, CD_MLOOPUV)) == NULL) {
return;
}
totpoly = dm->getNumPolys(dm);
start = 0;
#ifndef USE_LOOP_LAYOUT_FAST
for (i = 0; i < totpoly; i++, mpoly++) {
for (j = 0; j < mpoly->totloop; j++) {
copy_v2_v2(&varray[start], mloopuv[mpoly->loopstart + j].uv);
copy_v2_v2(&varray[start + 2], mloopuv[mpoly->loopstart + (j + 1) % mpoly->totloop].uv);
start += 4;
}
}
#else
for (i = 0; i < totpoly; i++) {
copy_v2_v2(&varray[start + 0], mloopuv[(i * 4) + 0].uv);
copy_v2_v2(&varray[start + 2], mloopuv[(i * 4) + 1].uv);
copy_v2_v2(&varray[start + 4], mloopuv[(i * 4) + 1].uv);
copy_v2_v2(&varray[start + 6], mloopuv[(i * 4) + 2].uv);
copy_v2_v2(&varray[start + 8], mloopuv[(i * 4) + 2].uv);
copy_v2_v2(&varray[start + 10], mloopuv[(i * 4) + 3].uv);
copy_v2_v2(&varray[start + 12], mloopuv[(i * 4) + 3].uv);
copy_v2_v2(&varray[start + 14], mloopuv[(i * 4) + 0].uv);
start += 16;
}
#endif
}
static void ccgDM_buffer_copy_edge(
DerivedMesh *dm, unsigned int *varray)
{
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *) dm;
CCGSubSurf *ss = ccgdm->ss;
/* getEdgeSuze returns num of verts, edges is one less */
int i, j, edgeSize = ccgSubSurf_getEdgeSize(ss) - 1;
int totedge = ccgSubSurf_getNumEdges(ss);
int grid_face_side = ccgSubSurf_getGridSize(ss) - 1;
int totface = ccgSubSurf_getNumFaces(ss);
unsigned int index_start;
unsigned int tot_interior = 0;
unsigned int grid_tot_face = grid_face_side * grid_face_side;
unsigned int iloose, inorm, iloosehidden, inormhidden;
unsigned int tot_loose_hidden = 0, tot_loose = 0;
unsigned int tot_hidden = 0, tot = 0;
unsigned int iloosevert;
/* int tot_interior = 0; */
/* first, handle hidden/loose existing edges, then interior edges */
for (j = 0; j < totedge; j++) {
CCGEdge *e = ccgdm->edgeMap[j].edge;
if (ccgdm->edgeFlags && !(ccgdm->edgeFlags[j] & ME_EDGEDRAW)) {
if (!ccgSubSurf_getEdgeNumFaces(e)) tot_loose_hidden++;
else tot_hidden++;
}
else {
if (!ccgSubSurf_getEdgeNumFaces(e)) tot_loose++;
else tot++;
}
}
inorm = 0;
inormhidden = tot * edgeSize;
iloose = (tot + tot_hidden) * edgeSize;
iloosehidden = (tot + tot_hidden + tot_loose) * edgeSize;
iloosevert = dm->drawObject->tot_loop_verts;
/* part one, handle all normal edges */
for (j = 0; j < totedge; j++) {
CCGFace *f;
int fhandle = 0;
int totvert = 0;
unsigned int S = 0;
CCGEdge *e = ccgdm->edgeMap[j].edge;
bool isloose = !ccgSubSurf_getEdgeNumFaces(e);
if (!isloose) {
CCGVert *v1, *v2;
CCGVert *ev1 = ccgSubSurf_getEdgeVert0(e);
CCGVert *ev2 = ccgSubSurf_getEdgeVert1(e);
f = ccgSubSurf_getEdgeFace(e, 0);
fhandle = GET_INT_FROM_POINTER(ccgSubSurf_getFaceFaceHandle(f));
totvert = ccgSubSurf_getFaceNumVerts(f);
/* find the index of vertices in the face */
for (i = 0; i < totvert; i++) {
v1 = ccgSubSurf_getFaceVert(f, i);
v2 = ccgSubSurf_getFaceVert(f, (i + 1) % totvert);
if ((ev1 == v1 && ev2 == v2) || (ev1 == v2 && ev2 == v1)) {
S = i;
break;
}
}
}
if (ccgdm->edgeFlags && !(ccgdm->edgeFlags[j] & ME_EDGEDRAW)) {
if (isloose) {
for (i = 0; i < edgeSize; i++) {
varray[iloosehidden * 2] = iloosevert;
varray[iloosehidden * 2 + 1] = iloosevert + 1;
iloosehidden++;
iloosevert++;
}
/* we are through with this loose edge and moving to the next, so increase by one */
iloosevert++;
}
else {
index_start = ccgdm->faceMap[fhandle].startFace;
for (i = 0; i < grid_face_side; i++) {
varray[inormhidden * 2] = (index_start + S * grid_tot_face + i * grid_face_side + grid_face_side - 1) * 4 + 1;
varray[inormhidden * 2 + 1] = (index_start + S * grid_tot_face + i * grid_face_side + grid_face_side - 1) * 4 + 2;
varray[inormhidden * 2 + 2] = (index_start + ((S + 1) % totvert) * grid_tot_face + grid_face_side * (grid_face_side - 1) + i) * 4 + 2;
varray[inormhidden * 2 + 3] = (index_start + ((S + 1) % totvert) * grid_tot_face + grid_face_side * (grid_face_side - 1) + i) * 4 + 3;
inormhidden += 2;
}
}
}
else {
if (isloose) {
for (i = 0; i < edgeSize; i++) {
varray[iloose * 2] = iloosevert;
varray[iloose * 2 + 1] = iloosevert + 1;
iloose++;
iloosevert++;
}
/* we are through with this loose edge and moving to the next, so increase by one */
iloosevert++;
}
else {
index_start = ccgdm->faceMap[fhandle].startFace;
for (i = 0; i < grid_face_side; i++) {
varray[inorm * 2] = (index_start + S * grid_tot_face + i * grid_face_side + grid_face_side - 1) * 4 + 1;
varray[inorm * 2 + 1] = (index_start + S * grid_tot_face + i * grid_face_side + grid_face_side - 1) * 4 + 2;
varray[inorm * 2 + 2] = (index_start + ((S + 1) % totvert) * grid_tot_face + grid_face_side * (grid_face_side - 1) + i) * 4 + 2;
varray[inorm * 2 + 3] = (index_start + ((S + 1) % totvert) * grid_tot_face + grid_face_side * (grid_face_side - 1) + i) * 4 + 3;
inorm += 2;
}
}
}
}
/* part two, handle interior edges */
inorm = totedge * grid_face_side * 2;
index_start = 0;
for (i = 0; i < totface; i++) {
CCGFace *f = ccgdm->faceMap[i].face;
unsigned int S, x, y, numVerts = ccgSubSurf_getFaceNumVerts(f);
for (S = 0; S < numVerts; S++) {
for (x = 1; x < grid_face_side; x++) {
for (y = 0; y < grid_face_side; y++) {
unsigned int tmp = (index_start + x * grid_face_side + y) * 4;
varray[inorm * 2] = tmp;
varray[inorm * 2 + 1] = tmp + 1;
inorm++;
}
}
for (x = 0; x < grid_face_side; x++) {
for (y = 0; y < grid_face_side; y++) {
unsigned int tmp = (index_start + x * grid_face_side + y) * 4;
varray[inorm * 2] = tmp + 3;
varray[inorm * 2 + 1] = tmp;
inorm++;
}
}
tot_interior += grid_face_side * (2 * grid_face_side - 1);
index_start += grid_tot_face;
}
}
dm->drawObject->tot_loose_edge_drawn = tot_loose * edgeSize;
dm->drawObject->loose_edge_offset = (tot + tot_hidden) * edgeSize;
dm->drawObject->tot_edge_drawn = tot * edgeSize;
dm->drawObject->interior_offset = totedge * edgeSize;
dm->drawObject->totinterior = tot_interior;
}
static void ccgDM_copy_gpu_data(
DerivedMesh *dm, int type, void *varray_p,
const int *mat_orig_to_new, const void *user_data)
{
/* 'varray_p' cast is redundant but include for self-documentation */
switch (type) {
case GPU_BUFFER_VERTEX:
ccgDM_buffer_copy_vertex(dm, (float *)varray_p);
break;
case GPU_BUFFER_NORMAL:
ccgDM_buffer_copy_normal(dm, (short *)varray_p);
break;
case GPU_BUFFER_UV:
ccgDM_buffer_copy_uv(dm, (float *)varray_p);
break;
case GPU_BUFFER_UV_TEXPAINT:
ccgDM_buffer_copy_uv_texpaint(dm, (float *)varray_p);
break;
case GPU_BUFFER_COLOR:
ccgDM_buffer_copy_color(dm, (unsigned char *)varray_p, user_data);
break;
case GPU_BUFFER_UVEDGE:
ccgDM_buffer_copy_uvedge(dm, (float *)varray_p);
break;
case GPU_BUFFER_EDGE:
ccgDM_buffer_copy_edge(dm, (unsigned int *)varray_p);
break;
case GPU_BUFFER_TRIANGLES:
ccgDM_buffer_copy_triangles(dm, (unsigned int *)varray_p, mat_orig_to_new);
break;
default:
break;
}
}
static GPUDrawObject *ccgDM_GPUObjectNew(DerivedMesh *dm)
{
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *) dm;
CCGSubSurf *ss = ccgdm->ss;
GPUDrawObject *gdo;
DMFlagMat *faceFlags = ccgdm->faceFlags;
int gridFaces = ccgSubSurf_getGridSize(ss) - 1;
const short dm_totmat = (faceFlags) ? dm->totmat : 1;
GPUBufferMaterial *matinfo;
int i;
unsigned int tot_internal_edges = 0;
int edgeVerts = ccgSubSurf_getEdgeSize(ss);
int edgeSize = edgeVerts - 1;
int totedge = ccgSubSurf_getNumEdges(ss);
int totface = ccgSubSurf_getNumFaces(ss);
/* object contains at least one material (default included) so zero means uninitialized dm */
BLI_assert(dm_totmat != 0);
matinfo = MEM_callocN(sizeof(*matinfo) * dm_totmat, "GPU_drawobject_new.mat_orig_to_new");
if (faceFlags) {
for (i = 0; i < totface; i++) {
CCGFace *f = ccgdm->faceMap[i].face;
int numVerts = ccgSubSurf_getFaceNumVerts(f);
int index = GET_INT_FROM_POINTER(ccgSubSurf_getFaceFaceHandle(f));
const short new_matnr = ME_MAT_NR_TEST(faceFlags[index].mat_nr, dm_totmat);
matinfo[new_matnr].totelements += numVerts * gridFaces * gridFaces * 6;
matinfo[new_matnr].totloops += numVerts * gridFaces * gridFaces * 4;
matinfo[new_matnr].totpolys++;
tot_internal_edges += numVerts * gridFaces * (2 * gridFaces - 1);
}
}
else {
for (i = 0; i < totface; i++) {
CCGFace *f = ccgdm->faceMap[i].face;
int numVerts = ccgSubSurf_getFaceNumVerts(f);
matinfo[0].totelements += numVerts * gridFaces * gridFaces * 6;
matinfo[0].totloops += numVerts * gridFaces * gridFaces * 4;
matinfo[0].totpolys++;
tot_internal_edges += numVerts * gridFaces * (2 * gridFaces - 1);
}
}
/* create the GPUDrawObject */
gdo = MEM_callocN(sizeof(GPUDrawObject), "GPUDrawObject");
gdo->totvert = 0; /* used to count indices, doesn't really matter for ccgsubsurf */
gdo->totedge = (totedge * edgeSize + tot_internal_edges);
GPU_buffer_material_finalize(gdo, matinfo, dm_totmat);
/* store total number of points used for triangles */
gdo->tot_triangle_point = ccgSubSurf_getNumFinalFaces(ss) * 6;
gdo->tot_loop_verts = ccgSubSurf_getNumFinalFaces(ss) * 4;
/* finally, count loose points */
for (i = 0; i < totedge; i++) {
CCGEdge *e = ccgdm->edgeMap[i].edge;
if (!ccgSubSurf_getEdgeNumFaces(e))
gdo->tot_loose_point += edgeVerts;
}
return gdo;
}
/* Only used by non-editmesh types */
static void ccgDM_drawFacesSolid(DerivedMesh *dm, float (*partial_redraw_planes)[4], bool fast, DMSetMaterial setMaterial)
{
int a;
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *) dm;
ccgdm_pbvh_update(ccgdm);
if (ccgdm->pbvh && ccgdm->multires.mmd) {
if (BKE_pbvh_has_faces(ccgdm->pbvh)) {
BKE_pbvh_draw(ccgdm->pbvh, partial_redraw_planes, NULL,
setMaterial, false, fast);
}
return;
}
#ifdef WITH_OPENSUBDIV
if (ccgdm->useGpuBackend) {
CCGSubSurf *ss = ccgdm->ss;
const DMFlagMat *faceFlags = ccgdm->faceFlags;
const int level = ccgSubSurf_getSubdivisionLevels(ss);
const int face_side = 1 << level;
const int grid_side = 1 << (level - 1);
const int face_patches = face_side * face_side;
const int grid_patches = grid_side * grid_side;
const int num_base_faces = ccgSubSurf_getNumGLMeshBaseFaces(ss);
int i, current_patch = 0;
int mat_nr = -1;
bool draw_smooth = false;
int start_draw_patch = -1, num_draw_patches = 0;
if (UNLIKELY(ccgSubSurf_prepareGLMesh(ss, setMaterial != NULL, -1) == false)) {
return;
}
if (setMaterial == NULL) {
ccgSubSurf_drawGLMesh(ss,
true,
-1,
-1);
return;
}
for (i = 0; i < num_base_faces; ++i) {
const int num_face_verts = ccgSubSurf_getNumGLMeshBaseFaceVerts(ss, i);
const int num_patches = (num_face_verts == 4) ? face_patches
: num_face_verts * grid_patches;
int new_matnr;
bool new_draw_smooth;
if (faceFlags) {
new_draw_smooth = (faceFlags[i].flag & ME_SMOOTH);
new_matnr = (faceFlags[i].mat_nr + 1);
}
else {
new_draw_smooth = true;
new_matnr = 1;
}
if (new_draw_smooth != draw_smooth || new_matnr != mat_nr) {
if (num_draw_patches != 0) {
bool do_draw = setMaterial(mat_nr, NULL);
if (do_draw) {
glShadeModel(draw_smooth ? GL_SMOOTH : GL_FLAT);
ccgSubSurf_drawGLMesh(ss,
true,
start_draw_patch,
num_draw_patches);
}
}
start_draw_patch = current_patch;
num_draw_patches = num_patches;
mat_nr = new_matnr;
draw_smooth = new_draw_smooth;
}
else {
num_draw_patches += num_patches;
}
current_patch += num_patches;
}
if (num_draw_patches != 0) {
bool do_draw = setMaterial(mat_nr, NULL);
if (do_draw) {
glShadeModel(draw_smooth ? GL_SMOOTH : GL_FLAT);
ccgSubSurf_drawGLMesh(ss,
true,
start_draw_patch,
num_draw_patches);
}
}
glShadeModel(GL_SMOOTH);
return;
}
#endif
GPU_vertex_setup(dm);
GPU_normal_setup(dm);
GPU_triangle_setup(dm);
for (a = 0; a < dm->drawObject->totmaterial; a++) {
if (!setMaterial || setMaterial(dm->drawObject->materials[a].mat_nr + 1, NULL)) {
GPU_buffer_draw_elements(dm->drawObject->triangles, GL_TRIANGLES, dm->drawObject->materials[a].start,
dm->drawObject->materials[a].totelements);
}
}
GPU_buffers_unbind();
}
typedef struct {
DMVertexAttribs attribs;
int numdata;
GPUAttrib datatypes[GPU_MAX_ATTRIB]; /* TODO, messing up when switching materials many times - [#21056]*/
} GPUMaterialConv;
/* Only used by non-editmesh types */
static void ccgDM_drawMappedFacesGLSL(DerivedMesh *dm,
DMSetMaterial setMaterial,
DMSetDrawOptions setDrawOptions,
void *userData)
{
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *) dm;
CCGSubSurf *ss = ccgdm->ss;
CCGKey key;
GPUVertexAttribs gattribs;
int a, b;
const DMFlagMat *faceFlags = ccgdm->faceFlags;
unsigned char *varray;
size_t max_element_size = 0;
int tot_loops = 0;
int totpoly = ccgSubSurf_getNumFaces(ss);
int gridSize = ccgSubSurf_getGridSize(ss);
int gridFaces = gridSize - 1;
int edgeSize = ccgSubSurf_getEdgeSize(ss);
#ifdef WITH_OPENSUBDIV
if (ccgdm->useGpuBackend) {
const int level = ccgSubSurf_getSubdivisionLevels(ss);
const int face_side = 1 << level;
const int grid_side = 1 << (level - 1);
const int face_patches = face_side * face_side;
const int grid_patches = grid_side * grid_side;
const int num_base_faces = ccgSubSurf_getNumGLMeshBaseFaces(ss);
int i, current_patch = 0;
int mat_nr = -1;
bool draw_smooth = false;
int start_draw_patch = -1, num_draw_patches = 0;
GPU_draw_update_fvar_offset(dm);
if (UNLIKELY(ccgSubSurf_prepareGLMesh(ss, false, -1) == false)) {
return;
}
for (i = 0; i < num_base_faces; ++i) {
const int num_face_verts = ccgSubSurf_getNumGLMeshBaseFaceVerts(ss, i);
const int num_patches = (num_face_verts == 4) ? face_patches
: num_face_verts * grid_patches;
int new_matnr;
bool new_draw_smooth;
if (faceFlags) {
new_draw_smooth = (faceFlags[i].flag & ME_SMOOTH);
new_matnr = (faceFlags[i].mat_nr + 1);
}
else {
new_draw_smooth = true;
new_matnr = 1;
}
if (new_draw_smooth != draw_smooth || new_matnr != mat_nr) {
if (num_draw_patches != 0) {
bool do_draw = setMaterial(mat_nr, &gattribs);
if (do_draw) {
glShadeModel(draw_smooth ? GL_SMOOTH : GL_FLAT);
ccgSubSurf_drawGLMesh(ss,
true,
start_draw_patch,
num_draw_patches);
}
}
start_draw_patch = current_patch;
num_draw_patches = num_patches;
mat_nr = new_matnr;
draw_smooth = new_draw_smooth;
}
else {
num_draw_patches += num_patches;
}
current_patch += num_patches;
}
if (num_draw_patches != 0) {
bool do_draw = setMaterial(mat_nr, &gattribs);
if (do_draw) {
glShadeModel(draw_smooth ? GL_SMOOTH : GL_FLAT);
ccgSubSurf_drawGLMesh(ss,
true,
start_draw_patch,
num_draw_patches);
}
}
glShadeModel(GL_SMOOTH);
return;
}
#endif
CCG_key_top_level(&key, ss);
ccgdm_pbvh_update(ccgdm);
if (setDrawOptions != NULL) {
const float (*lnors)[3] = dm->getLoopDataArray(dm, CD_NORMAL);
DMVertexAttribs attribs = {{{NULL}}};
int i;
int matnr = -1;
int do_draw = 0;
#define PASSATTRIB(dx, dy, vert) { \
if (attribs.totorco) \
index = getFaceIndex(ss, f, S, x + dx, y + dy, edgeSize, gridSize); \
else \
index = 0; \
DM_draw_attrib_vertex(&attribs, a, index, vert, ((a) * 4) + vert); \
DM_draw_attrib_vertex_uniforms(&attribs); \
} (void)0
totpoly = ccgSubSurf_getNumFaces(ss);
for (a = 0, i = 0; i < totpoly; i++) {
CCGFace *f = ccgdm->faceMap[i].face;
const float (*ln)[3] = NULL;
int S, x, y, drawSmooth;
int index = GET_INT_FROM_POINTER(ccgSubSurf_getFaceFaceHandle(f));
int origIndex = ccgDM_getFaceMapIndex(ss, f);
int numVerts = ccgSubSurf_getFaceNumVerts(f);
int new_matnr;
if (faceFlags) {
drawSmooth = (lnors || (faceFlags[index].flag & ME_SMOOTH));
new_matnr = faceFlags[index].mat_nr + 1;
}
else {
drawSmooth = 1;
new_matnr = 1;
}
if (lnors) {
ln = lnors;
lnors += (gridFaces * gridFaces * numVerts) * 4;
}
if (new_matnr != matnr) {
do_draw = setMaterial(matnr = new_matnr, &gattribs);
if (do_draw)
DM_vertex_attributes_from_gpu(dm, &gattribs, &attribs);
}
if (!do_draw || (setDrawOptions && (origIndex != ORIGINDEX_NONE) &&
(setDrawOptions(userData, origIndex) == DM_DRAW_OPTION_SKIP)))
{
a += gridFaces * gridFaces * numVerts;
continue;
}
glShadeModel(drawSmooth ? GL_SMOOTH : GL_FLAT);
for (S = 0; S < numVerts; S++) {
CCGElem *faceGridData = ccgSubSurf_getFaceGridDataArray(ss, f, S);
CCGElem *vda, *vdb;
if (ln) {
glBegin(GL_QUADS);
for (y = 0; y < gridFaces; y++) {
for (x = 0; x < gridFaces; x++) {
float *aco = CCG_grid_elem_co(&key, faceGridData, x, y);
float *bco = CCG_grid_elem_co(&key, faceGridData, x + 1, y);
float *cco = CCG_grid_elem_co(&key, faceGridData, x + 1, y + 1);
float *dco = CCG_grid_elem_co(&key, faceGridData, x, y + 1);
PASSATTRIB(0, 1, 1);
glNormal3fv(ln[1]);
glVertex3fv(dco);
PASSATTRIB(1, 1, 2);
glNormal3fv(ln[2]);
glVertex3fv(cco);
PASSATTRIB(1, 0, 3);
glNormal3fv(ln[3]);
glVertex3fv(bco);
PASSATTRIB(0, 0, 0);
glNormal3fv(ln[0]);
glVertex3fv(aco);
ln += 4;
a++;
}
}
glEnd();
}
else if (drawSmooth) {
for (y = 0; y < gridFaces; y++) {
glBegin(GL_QUAD_STRIP);
for (x = 0; x < gridFaces; x++) {
vda = CCG_grid_elem(&key, faceGridData, x, y + 0);
vdb = CCG_grid_elem(&key, faceGridData, x, y + 1);
PASSATTRIB(0, 0, 0);
glNormal3fv(CCG_elem_no(&key, vda));
glVertex3fv(CCG_elem_co(&key, vda));
PASSATTRIB(0, 1, 1);
glNormal3fv(CCG_elem_no(&key, vdb));
glVertex3fv(CCG_elem_co(&key, vdb));
if (x != gridFaces - 1)
a++;
}
vda = CCG_grid_elem(&key, faceGridData, x, y + 0);
vdb = CCG_grid_elem(&key, faceGridData, x, y + 1);
PASSATTRIB(0, 0, 3);
glNormal3fv(CCG_elem_no(&key, vda));
glVertex3fv(CCG_elem_co(&key, vda));
PASSATTRIB(0, 1, 2);
glNormal3fv(CCG_elem_no(&key, vdb));
glVertex3fv(CCG_elem_co(&key, vdb));
glEnd();
a++;
}
}
else {
glBegin(GL_QUADS);
for (y = 0; y < gridFaces; y++) {
for (x = 0; x < gridFaces; x++) {
float *aco = CCG_grid_elem_co(&key, faceGridData, x, y);
float *bco = CCG_grid_elem_co(&key, faceGridData, x + 1, y);
float *cco = CCG_grid_elem_co(&key, faceGridData, x + 1, y + 1);
float *dco = CCG_grid_elem_co(&key, faceGridData, x, y + 1);
ccgDM_glNormalFast(aco, bco, cco, dco);
PASSATTRIB(0, 1, 1);
glVertex3fv(dco);
PASSATTRIB(1, 1, 2);
glVertex3fv(cco);
PASSATTRIB(1, 0, 3);
glVertex3fv(bco);
PASSATTRIB(0, 0, 0);
glVertex3fv(aco);
a++;
}
}
glEnd();
}
}
}
glShadeModel(GL_SMOOTH);
#undef PASSATTRIB
}
else {
GPUMaterialConv *matconv;
size_t offset;
int *mat_orig_to_new;
int tot_active_mat;
GPUBuffer *buffer = NULL;
GPU_vertex_setup(dm);
GPU_normal_setup(dm);
GPU_triangle_setup(dm);
tot_active_mat = dm->drawObject->totmaterial;
matconv = MEM_callocN(sizeof(*matconv) * tot_active_mat,
"cdDM_drawMappedFacesGLSL.matconv");
mat_orig_to_new = MEM_mallocN(sizeof(*mat_orig_to_new) * dm->totmat,
"cdDM_drawMappedFacesGLSL.mat_orig_to_new");
/* part one, check what attributes are needed per material */
for (a = 0; a < tot_active_mat; a++) {
int new_matnr;
int do_draw;
new_matnr = dm->drawObject->materials[a].mat_nr;
/* map from original material index to new
* GPUBufferMaterial index */
mat_orig_to_new[new_matnr] = a;
do_draw = setMaterial(new_matnr + 1, &gattribs);
if (do_draw) {
int numdata = 0;
DM_vertex_attributes_from_gpu(dm, &gattribs, &matconv[a].attribs);
if (matconv[a].attribs.totorco && matconv[a].attribs.orco.array) {
matconv[a].datatypes[numdata].index = matconv[a].attribs.orco.gl_index;
matconv[a].datatypes[numdata].info_index = matconv[a].attribs.orco.gl_info_index;
matconv[a].datatypes[numdata].size = 3;
matconv[a].datatypes[numdata].type = GL_FLOAT;
numdata++;
}
for (b = 0; b < matconv[a].attribs.tottface; b++) {
if (matconv[a].attribs.tface[b].array) {
matconv[a].datatypes[numdata].index = matconv[a].attribs.tface[b].gl_index;
matconv[a].datatypes[numdata].info_index = matconv[a].attribs.tface[b].gl_info_index;
matconv[a].datatypes[numdata].size = 2;
matconv[a].datatypes[numdata].type = GL_FLOAT;
numdata++;
}
}
for (b = 0; b < matconv[a].attribs.totmcol; b++) {
if (matconv[a].attribs.mcol[b].array) {
matconv[a].datatypes[numdata].index = matconv[a].attribs.mcol[b].gl_index;
matconv[a].datatypes[numdata].info_index = matconv[a].attribs.mcol[b].gl_info_index;
matconv[a].datatypes[numdata].size = 4;
matconv[a].datatypes[numdata].type = GL_UNSIGNED_BYTE;
numdata++;
}
}
for (b = 0; b < matconv[a].attribs.tottang; b++) {
if (matconv[a].attribs.tottang && matconv[a].attribs.tang[b].array) {
matconv[a].datatypes[numdata].index = matconv[a].attribs.tang[b].gl_index;
matconv[a].datatypes[numdata].info_index = matconv[a].attribs.tang[b].gl_info_index;
matconv[a].datatypes[numdata].size = 4;
matconv[a].datatypes[numdata].type = GL_FLOAT;
numdata++;
}
}
if (numdata != 0) {
matconv[a].numdata = numdata;
max_element_size = max_ii(GPU_attrib_element_size(matconv[a].datatypes, numdata), max_element_size);
}
}
}
/* part two, generate and fill the arrays with the data */
if (max_element_size > 0) {
buffer = GPU_buffer_alloc(max_element_size * dm->drawObject->tot_loop_verts);
varray = GPU_buffer_lock_stream(buffer, GPU_BINDING_ARRAY);
if (varray == NULL) {
GPU_buffers_unbind();
GPU_buffer_free(buffer);
MEM_freeN(mat_orig_to_new);
MEM_freeN(matconv);
fprintf(stderr, "Out of memory, can't draw object\n");
return;
}
for (a = 0; a < totpoly; a++) {
CCGFace *f = ccgdm->faceMap[a].face;
int orig_index = GET_INT_FROM_POINTER(ccgSubSurf_getFaceFaceHandle(f));
int S, x, y, numVerts = ccgSubSurf_getFaceNumVerts(f);
int i;
if (faceFlags) {
i = mat_orig_to_new[faceFlags[orig_index].mat_nr];
}
else {
i = mat_orig_to_new[0];
}
if (matconv[i].numdata != 0) {
for (S = 0; S < numVerts; S++) {
for (y = 0; y < gridFaces; y++) {
for (x = 0; x < gridFaces; x++) {
offset = tot_loops * max_element_size;
if (matconv[i].attribs.totorco && matconv[i].attribs.orco.array) {
int index;
index = getFaceIndex(ss, f, S, x, y, edgeSize, gridSize);
copy_v3_v3((float *)&varray[offset],
(float *)matconv[i].attribs.orco.array[index]);
index = getFaceIndex(ss, f, S, x + 1, y, edgeSize, gridSize);
copy_v3_v3((float *)&varray[offset + max_element_size],
(float *)matconv[i].attribs.orco.array[index]);
index = getFaceIndex(ss, f, S, x + 1, y + 1, edgeSize, gridSize);
copy_v3_v3((float *)&varray[offset + 2 * max_element_size],
(float *)matconv[i].attribs.orco.array[index]);
index = getFaceIndex(ss, f, S, x, y + 1, edgeSize, gridSize);
copy_v3_v3((float *)&varray[offset + 3 * max_element_size],
(float *)matconv[i].attribs.orco.array[index]);
offset += sizeof(float) * 3;
}
for (b = 0; b < matconv[i].attribs.tottface; b++) {
if (matconv[i].attribs.tface[b].array) {
const MLoopUV *mloopuv = matconv[i].attribs.tface[b].array + tot_loops;
copy_v2_v2((float *)&varray[offset], mloopuv[0].uv);
copy_v2_v2((float *)&varray[offset + max_element_size], mloopuv[3].uv);
copy_v2_v2((float *)&varray[offset + 2 * max_element_size], mloopuv[2].uv);
copy_v2_v2((float *)&varray[offset + 3 * max_element_size], mloopuv[1].uv);
offset += sizeof(float) * 2;
}
}
for (b = 0; b < matconv[i].attribs.totmcol; b++) {
if (matconv[i].attribs.mcol[b].array) {
const MLoopCol *mloopcol = matconv[i].attribs.mcol[b].array + tot_loops;
copy_v4_v4_uchar(&varray[offset], &mloopcol[0].r);
copy_v4_v4_uchar(&varray[offset + max_element_size], &mloopcol[3].r);
copy_v4_v4_uchar(&varray[offset + 2 * max_element_size], &mloopcol[2].r);
copy_v4_v4_uchar(&varray[offset + 3 * max_element_size], &mloopcol[1].r);
offset += sizeof(unsigned char) * 4;
}
}
for (b = 0; b < matconv[i].attribs.tottang; b++) {
if (matconv[i].attribs.tottang && matconv[i].attribs.tang[b].array) {
const float (*looptang)[4] = (const float (*)[4])matconv[i].attribs.tang[b].array + tot_loops;
copy_v4_v4((float *)&varray[offset], looptang[0]);
copy_v4_v4((float *)&varray[offset + max_element_size], looptang[3]);
copy_v4_v4((float *)&varray[offset + 2 * max_element_size], looptang[2]);
copy_v4_v4((float *)&varray[offset + 3 * max_element_size], looptang[1]);
offset += sizeof(float) * 4;
}
}
tot_loops += 4;
}
}
}
}
else {
tot_loops += 4 * numVerts * gridFaces * gridFaces;
}
}
GPU_buffer_unlock(buffer, GPU_BINDING_ARRAY);
}
for (a = 0; a < tot_active_mat; a++) {
int new_matnr;
int do_draw;
new_matnr = dm->drawObject->materials[a].mat_nr;
do_draw = setMaterial(new_matnr + 1, &gattribs);
if (do_draw) {
if (matconv[a].numdata) {
GPU_interleaved_attrib_setup(buffer, matconv[a].datatypes, matconv[a].numdata, max_element_size);
}
GPU_buffer_draw_elements(dm->drawObject->triangles, GL_TRIANGLES,
dm->drawObject->materials[a].start, dm->drawObject->materials[a].totelements);
if (matconv[a].numdata) {
GPU_interleaved_attrib_unbind();
}
}
}
GPU_buffers_unbind();
if (buffer)
GPU_buffer_free(buffer);
MEM_freeN(mat_orig_to_new);
MEM_freeN(matconv);
}
}
static void ccgDM_drawFacesGLSL(DerivedMesh *dm, DMSetMaterial setMaterial)
{
dm->drawMappedFacesGLSL(dm, setMaterial, NULL, NULL);
}
/* Only used by non-editmesh types */
static void ccgDM_drawMappedFacesMat(DerivedMesh *dm,
void (*setMaterial)(void *userData, int matnr, void *attribs),
bool (*setFace)(void *userData, int index), void *userData)
{
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *) dm;
CCGSubSurf *ss = ccgdm->ss;
CCGKey key;
GPUVertexAttribs gattribs;
DMVertexAttribs attribs = {{{NULL}}};
int gridSize = ccgSubSurf_getGridSize(ss);
int gridFaces = gridSize - 1;
int edgeSize = ccgSubSurf_getEdgeSize(ss);
DMFlagMat *faceFlags = ccgdm->faceFlags;
const float (*lnors)[3] = dm->getLoopDataArray(dm, CD_NORMAL);
int a, i, numVerts, matnr, totface;
#ifdef WITH_OPENSUBDIV
if (ccgdm->useGpuBackend) {
const int level = ccgSubSurf_getSubdivisionLevels(ss);
const int face_side = 1 << level;
const int grid_side = 1 << (level - 1);
const int face_patches = face_side * face_side;
const int grid_patches = grid_side * grid_side;
const int num_base_faces = ccgSubSurf_getNumGLMeshBaseFaces(ss);
int current_patch = 0;
int mat_nr = -1;
bool draw_smooth = false;
int start_draw_patch = -1, num_draw_patches = 0;
GPU_draw_update_fvar_offset(dm);
if (UNLIKELY(ccgSubSurf_prepareGLMesh(ss, true, -1) == false)) {
return;
}
for (i = 0; i < num_base_faces; ++i) {
const int num_face_verts = ccgSubSurf_getNumGLMeshBaseFaceVerts(ss, i);
const int num_patches = (num_face_verts == 4) ? face_patches
: num_face_verts * grid_patches;
int new_matnr;
bool new_draw_smooth;
if (faceFlags) {
new_draw_smooth = (faceFlags[i].flag & ME_SMOOTH);
new_matnr = (faceFlags[i].mat_nr + 1);
}
else {
new_draw_smooth = true;
new_matnr = 1;
}
if (new_draw_smooth != draw_smooth || new_matnr != mat_nr) {
if (num_draw_patches != 0) {
setMaterial(userData, mat_nr, &gattribs);
glShadeModel(draw_smooth ? GL_SMOOTH : GL_FLAT);
ccgSubSurf_drawGLMesh(ss,
true,
start_draw_patch,
num_draw_patches);
}
start_draw_patch = current_patch;
num_draw_patches = num_patches;
mat_nr = new_matnr;
draw_smooth = new_draw_smooth;
}
else {
num_draw_patches += num_patches;
}
current_patch += num_patches;
}
if (num_draw_patches != 0) {
setMaterial(userData, mat_nr, &gattribs);
glShadeModel(draw_smooth ? GL_SMOOTH : GL_FLAT);
ccgSubSurf_drawGLMesh(ss,
true,
start_draw_patch,
num_draw_patches);
}
glShadeModel(GL_SMOOTH);
return;
}
#endif
CCG_key_top_level(&key, ss);
ccgdm_pbvh_update(ccgdm);
matnr = -1;
#define PASSATTRIB(dx, dy, vert) { \
if (attribs.totorco) \
index = getFaceIndex(ss, f, S, x + dx, y + dy, edgeSize, gridSize); \
else \
index = 0; \
DM_draw_attrib_vertex(&attribs, a, index, vert, ((a) * 4) + vert); \
DM_draw_attrib_vertex_uniforms(&attribs); \
} (void)0
totface = ccgSubSurf_getNumFaces(ss);
for (a = 0, i = 0; i < totface; i++) {
CCGFace *f = ccgdm->faceMap[i].face;
const float (*ln)[3] = NULL;
int S, x, y, drawSmooth;
int index = GET_INT_FROM_POINTER(ccgSubSurf_getFaceFaceHandle(f));
int origIndex = ccgDM_getFaceMapIndex(ss, f);
int new_matnr;
numVerts = ccgSubSurf_getFaceNumVerts(f);
/* get flags */
if (faceFlags) {
drawSmooth = (lnors || (faceFlags[index].flag & ME_SMOOTH));
new_matnr = faceFlags[index].mat_nr + 1;
}
else {
drawSmooth = 1;
new_matnr = 1;
}
if (lnors) {
ln = lnors;
lnors += (gridFaces * gridFaces * numVerts) * 4;
}
/* material */
if (new_matnr != matnr) {
setMaterial(userData, matnr = new_matnr, &gattribs);
DM_vertex_attributes_from_gpu(dm, &gattribs, &attribs);
}
/* face hiding */
if ((setFace && (origIndex != ORIGINDEX_NONE) && !setFace(userData, origIndex))) {
a += gridFaces * gridFaces * numVerts;
continue;
}
/* draw face*/
glShadeModel(drawSmooth ? GL_SMOOTH : GL_FLAT);
for (S = 0; S < numVerts; S++) {
CCGElem *faceGridData = ccgSubSurf_getFaceGridDataArray(ss, f, S);
CCGElem *vda, *vdb;
if (ln) {
glBegin(GL_QUADS);
for (y = 0; y < gridFaces; y++) {
for (x = 0; x < gridFaces; x++) {
float *aco = CCG_grid_elem_co(&key, faceGridData, x, y + 0);
float *bco = CCG_grid_elem_co(&key, faceGridData, x + 1, y + 0);
float *cco = CCG_grid_elem_co(&key, faceGridData, x + 1, y + 1);
float *dco = CCG_grid_elem_co(&key, faceGridData, x, y + 1);
PASSATTRIB(0, 1, 1);
glNormal3fv(ln[1]);
glVertex3fv(dco);
PASSATTRIB(1, 1, 2);
glNormal3fv(ln[2]);
glVertex3fv(cco);
PASSATTRIB(1, 0, 3);
glNormal3fv(ln[3]);
glVertex3fv(bco);
PASSATTRIB(0, 0, 0);
glNormal3fv(ln[0]);
glVertex3fv(aco);
ln += 4;
a++;
}
}
glEnd();
}
else if (drawSmooth) {
for (y = 0; y < gridFaces; y++) {
glBegin(GL_QUAD_STRIP);
for (x = 0; x < gridFaces; x++) {
vda = CCG_grid_elem(&key, faceGridData, x, y);
vdb = CCG_grid_elem(&key, faceGridData, x, y + 1);
PASSATTRIB(0, 0, 0);
glNormal3fv(CCG_elem_no(&key, vda));
glVertex3fv(CCG_elem_co(&key, vda));
PASSATTRIB(0, 1, 1);
glNormal3fv(CCG_elem_no(&key, vdb));
glVertex3fv(CCG_elem_co(&key, vdb));
if (x != gridFaces - 1)
a++;
}
vda = CCG_grid_elem(&key, faceGridData, x, y + 0);
vdb = CCG_grid_elem(&key, faceGridData, x, y + 1);
PASSATTRIB(0, 0, 3);
glNormal3fv(CCG_elem_no(&key, vda));
glVertex3fv(CCG_elem_co(&key, vda));
PASSATTRIB(0, 1, 2);
glNormal3fv(CCG_elem_no(&key, vdb));
glVertex3fv(CCG_elem_co(&key, vdb));
glEnd();
a++;
}
}
else {
glBegin(GL_QUADS);
for (y = 0; y < gridFaces; y++) {
for (x = 0; x < gridFaces; x++) {
float *aco = CCG_grid_elem_co(&key, faceGridData, x, y + 0);
float *bco = CCG_grid_elem_co(&key, faceGridData, x + 1, y + 0);
float *cco = CCG_grid_elem_co(&key, faceGridData, x + 1, y + 1);
float *dco = CCG_grid_elem_co(&key, faceGridData, x, y + 1);
ccgDM_glNormalFast(aco, bco, cco, dco);
PASSATTRIB(0, 1, 1);
glVertex3fv(dco);
PASSATTRIB(1, 1, 2);
glVertex3fv(cco);
PASSATTRIB(1, 0, 3);
glVertex3fv(bco);
PASSATTRIB(0, 0, 0);
glVertex3fv(aco);
a++;
}
}
glEnd();
}
}
}
glShadeModel(GL_SMOOTH);
#undef PASSATTRIB
}
static void ccgDM_drawFacesTex_common(DerivedMesh *dm,
DMSetDrawOptionsTex drawParams,
DMSetDrawOptionsMappedTex drawParamsMapped,
DMCompareDrawOptions compareDrawOptions,
void *userData, DMDrawFlag flag)
{
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *) dm;
CCGSubSurf *ss = ccgdm->ss;
CCGKey key;
int colType;
const MLoopCol *mloopcol = NULL;
MTexPoly *mtexpoly = DM_get_poly_data_layer(dm, CD_MTEXPOLY);
DMFlagMat *faceFlags = ccgdm->faceFlags;
DMDrawOption draw_option;
int i, totpoly;
bool flush;
const bool use_tface = (flag & DM_DRAW_USE_ACTIVE_UV) != 0;
const bool use_colors = (flag & DM_DRAW_USE_COLORS) != 0;
unsigned int next_actualFace;
unsigned int gridFaces = ccgSubSurf_getGridSize(ss) - 1;
int mat_index;
int tot_element, start_element, tot_drawn;
if (use_colors) {
colType = CD_TEXTURE_MLOOPCOL;
mloopcol = dm->getLoopDataArray(dm, colType);
if (!mloopcol) {
colType = CD_PREVIEW_MLOOPCOL;
mloopcol = dm->getLoopDataArray(dm, colType);
}
if (!mloopcol) {
colType = CD_MLOOPCOL;
mloopcol = dm->getLoopDataArray(dm, colType);
}
}
#ifdef WITH_OPENSUBDIV
if (ccgdm->useGpuBackend) {
const int active_uv_layer = CustomData_get_active_layer_index(&dm->loopData, CD_MLOOPUV);
if (UNLIKELY(ccgSubSurf_prepareGLMesh(ss, true, active_uv_layer) == false)) {
return;
}
if (drawParams == NULL) {
ccgSubSurf_drawGLMesh(ss, true, -1, -1);
return;
}
const int level = ccgSubSurf_getSubdivisionLevels(ss);
const int face_side = 1 << level;
const int grid_side = 1 << (level - 1);
const int face_patches = face_side * face_side;
const int grid_patches = grid_side * grid_side;
const int num_base_faces = ccgSubSurf_getNumGLMeshBaseFaces(ss);
int current_patch = 0;
int mat_nr = -1;
int start_draw_patch = 0, num_draw_patches = 0;
bool draw_smooth = false;
for (i = 0; i < num_base_faces; ++i) {
const int num_face_verts = ccgSubSurf_getNumGLMeshBaseFaceVerts(ss, i);
const int num_patches = (num_face_verts == 4) ? face_patches
: num_face_verts * grid_patches;
if (faceFlags) {
mat_nr = faceFlags[i].mat_nr;
draw_smooth = (faceFlags[i].flag & ME_SMOOTH);
}
else {
mat_nr = 0;
draw_smooth = false;
}
if (drawParams != NULL) {
MTexPoly *tp = (use_tface && mtexpoly) ? &mtexpoly[i] : NULL;
draw_option = drawParams(tp, (mloopcol != NULL), mat_nr);
}
else {
draw_option = (drawParamsMapped)
? drawParamsMapped(userData, i, mat_nr)
: DM_DRAW_OPTION_NORMAL;
}
flush = (draw_option == DM_DRAW_OPTION_SKIP) || (i == num_base_faces - 1);
const int next_face = min_ii(i + 1, num_base_faces - 1);
if (!flush && compareDrawOptions) {
flush |= compareDrawOptions(userData, i, next_face) == 0;
}
if (!flush && faceFlags) {
bool new_draw_smooth = (faceFlags[next_face].flag & ME_SMOOTH);
flush |= (new_draw_smooth != draw_smooth);
}
current_patch += num_patches;
if (flush) {
if (draw_option != DM_DRAW_OPTION_SKIP) {
num_draw_patches += num_patches;
}
if (num_draw_patches != 0) {
glShadeModel(draw_smooth ? GL_SMOOTH : GL_FLAT);
ccgSubSurf_drawGLMesh(ss,
true,
start_draw_patch,
num_draw_patches);
}
start_draw_patch = current_patch;
num_draw_patches = 0;
}
else {
num_draw_patches += num_patches;
}
}
glShadeModel(GL_SMOOTH);
return;
}
#endif
CCG_key_top_level(&key, ss);
ccgdm_pbvh_update(ccgdm);
GPU_vertex_setup(dm);
GPU_normal_setup(dm);
GPU_triangle_setup(dm);
if (flag & DM_DRAW_USE_TEXPAINT_UV)
GPU_texpaint_uv_setup(dm);
else
GPU_uv_setup(dm);
if (mloopcol) {
GPU_color_setup(dm, colType);
}
next_actualFace = 0;
/* lastFlag = 0; */ /* UNUSED */
for (mat_index = 0; mat_index < dm->drawObject->totmaterial; mat_index++) {
GPUBufferMaterial *bufmat = dm->drawObject->materials + mat_index;
next_actualFace = bufmat->polys[0];
totpoly = bufmat->totpolys;
tot_element = 0;
tot_drawn = 0;
start_element = 0;
for (i = 0; i < totpoly; i++) {
int polyindex = bufmat->polys[i];
CCGFace *f = ccgdm->faceMap[polyindex].face;
int numVerts = ccgSubSurf_getFaceNumVerts(f);
int index = ccgDM_getFaceMapIndex(ss, f);
int orig_index = GET_INT_FROM_POINTER(ccgSubSurf_getFaceFaceHandle(f));
int mat_nr;
int facequads = numVerts * gridFaces * gridFaces;
int actualFace = ccgdm->faceMap[polyindex].startFace;
if (i != totpoly - 1) {
polyindex = bufmat->polys[i + 1];
next_actualFace = ccgdm->faceMap[polyindex].startFace;
}
if (faceFlags) {
mat_nr = faceFlags[orig_index].mat_nr;
}
else {
mat_nr = 0;
}
if (drawParams) {
MTexPoly *tp = (use_tface && mtexpoly) ? &mtexpoly[actualFace] : NULL;
draw_option = drawParams(tp, (mloopcol != NULL), mat_nr);
}
else if (index != ORIGINDEX_NONE)
draw_option = (drawParamsMapped) ? drawParamsMapped(userData, index, mat_nr) : DM_DRAW_OPTION_NORMAL;
else
draw_option = DM_DRAW_OPTION_NORMAL;
/* flush buffer if current triangle isn't drawable or it's last triangle */
flush = (draw_option == DM_DRAW_OPTION_SKIP) || (i == totpoly - 1);
if (!flush && compareDrawOptions) {
/* also compare draw options and flush buffer if they're different
* need for face selection highlight in edit mode */
flush |= compareDrawOptions(userData, actualFace, next_actualFace) == 0;
}
tot_element += facequads * 6;
if (flush) {
if (draw_option != DM_DRAW_OPTION_SKIP)
tot_drawn += facequads * 6;
if (tot_drawn) {
if (mloopcol && draw_option != DM_DRAW_OPTION_NO_MCOL)
GPU_color_switch(1);
else
GPU_color_switch(0);
GPU_buffer_draw_elements(dm->drawObject->triangles, GL_TRIANGLES, bufmat->start + start_element, tot_drawn);
tot_drawn = 0;
}
start_element = tot_element;
}
else {
tot_drawn += facequads * 6;
}
}
}
GPU_buffers_unbind();
}
static void ccgDM_drawFacesTex(DerivedMesh *dm,
DMSetDrawOptionsTex setDrawOptions,
DMCompareDrawOptions compareDrawOptions,
void *userData, DMDrawFlag flag)
{
ccgDM_drawFacesTex_common(dm, setDrawOptions, NULL, compareDrawOptions, userData, flag);
}
static void ccgDM_drawMappedFacesTex(DerivedMesh *dm,
DMSetDrawOptionsMappedTex setDrawOptions,
DMCompareDrawOptions compareDrawOptions,
void *userData, DMDrawFlag flag)
{
ccgDM_drawFacesTex_common(dm, NULL, setDrawOptions, compareDrawOptions, userData, flag);
}
/* same as cdDM_drawUVEdges */
static void ccgDM_drawUVEdges(DerivedMesh *dm)
{
MPoly *mpoly = dm->getPolyArray(dm);
int totpoly = dm->getNumPolys(dm);
int prevstart = 0;
bool prevdraw = true;
int curpos = 0;
int i;
GPU_uvedge_setup(dm);
for (i = 0; i < totpoly; i++, mpoly++) {
const bool draw = (mpoly->flag & ME_HIDE) == 0;
if (prevdraw != draw) {
if (prevdraw && (curpos != prevstart)) {
glDrawArrays(GL_LINES, prevstart, curpos - prevstart);
}
prevstart = curpos;
}
curpos += 2 * mpoly->totloop;
prevdraw = draw;
}
if (prevdraw && (curpos != prevstart)) {
glDrawArrays(GL_LINES, prevstart, curpos - prevstart);
}
GPU_buffers_unbind();
}
static void ccgDM_drawMappedFaces(DerivedMesh *dm,
DMSetDrawOptions setDrawOptions,
DMSetMaterial setMaterial,
DMCompareDrawOptions compareDrawOptions,
void *userData, DMDrawFlag flag)
{
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *) dm;
CCGSubSurf *ss = ccgdm->ss;
CCGKey key;
MLoopCol *mloopcol = NULL;
const float (*lnors)[3] = dm->getLoopDataArray(dm, CD_NORMAL);
int i, gridSize = ccgSubSurf_getGridSize(ss);
DMFlagMat *faceFlags = ccgdm->faceFlags;
int useColors = flag & DM_DRAW_USE_COLORS;
int gridFaces = gridSize - 1, totface;
int prev_mat_nr = -1;
if (ccgdm->pbvh) {
if (G.debug_value == 14)
BKE_pbvh_draw_BB(ccgdm->pbvh);
}
#ifdef WITH_OPENSUBDIV
if (ccgdm->useGpuBackend) {
int new_matnr;
bool draw_smooth, do_draw = true;
if (setDrawOptions == NULL) {
/* TODO(sergey): This is for cases when vertex colors or weights
* are visualising. Currently we don't have CD layers for this data
* and here we only make it so there's no garbage displayed.
*
* In the future we'll either need to have CD for this data or pass
* this data as face-varying or vertex-varying data in OSD mesh.
*/
glColor3f(0.8f, 0.8f, 0.8f);
}
if (UNLIKELY(ccgSubSurf_prepareGLMesh(ss, true, -1) == false)) {
return;
}
if (faceFlags) {
draw_smooth = (faceFlags[0].flag & ME_SMOOTH);
new_matnr = (faceFlags[0].mat_nr + 1);
}
else {
draw_smooth = true;
new_matnr = 1;
}
if (setMaterial) {
setMaterial(new_matnr, NULL);
}
if (setDrawOptions) {
if (setDrawOptions(userData, 0) == DM_DRAW_OPTION_SKIP) {
do_draw = false;
}
}
if (do_draw) {
glShadeModel(draw_smooth ? GL_SMOOTH : GL_FLAT);
ccgSubSurf_drawGLMesh(ss, true, -1, -1);
glShadeModel(GL_SMOOTH);
}
return;
}
#endif
CCG_key_top_level(&key, ss);
/* currently unused -- each original face is handled separately */
(void)compareDrawOptions;
if (useColors) {
mloopcol = dm->getLoopDataArray(dm, CD_PREVIEW_MLOOPCOL);
if (!mloopcol)
mloopcol = dm->getLoopDataArray(dm, CD_MLOOPCOL);
}
totface = ccgSubSurf_getNumFaces(ss);
for (i = 0; i < totface; i++) {
CCGFace *f = ccgdm->faceMap[i].face;
int S, x, y, numVerts = ccgSubSurf_getFaceNumVerts(f);
int drawSmooth, index = ccgDM_getFaceMapIndex(ss, f);
int origIndex;
unsigned char *cp = NULL;
const float (*ln)[3] = NULL;
origIndex = GET_INT_FROM_POINTER(ccgSubSurf_getFaceFaceHandle(f));
if (flag & DM_DRAW_ALWAYS_SMOOTH) drawSmooth = 1;
else if (faceFlags) drawSmooth = (lnors || (faceFlags[origIndex].flag & ME_SMOOTH));
else drawSmooth = 1;
if (mloopcol) {
cp = (unsigned char *)mloopcol;
mloopcol += gridFaces * gridFaces * numVerts * 4;
}
if (lnors) {
ln = lnors;
lnors += (gridFaces * gridFaces * numVerts) * 4;
}
{
DMDrawOption draw_option = DM_DRAW_OPTION_NORMAL;
if (setMaterial) {
int mat_nr = faceFlags ? faceFlags[origIndex].mat_nr + 1 : 1;
if (mat_nr != prev_mat_nr) {
setMaterial(mat_nr, NULL); /* XXX, no faceFlags no material */
prev_mat_nr = mat_nr;
}
}
if (setDrawOptions && (index != ORIGINDEX_NONE))
draw_option = setDrawOptions(userData, index);
if (draw_option != DM_DRAW_OPTION_SKIP) {
if (draw_option == DM_DRAW_OPTION_STIPPLE) {
GPU_basic_shader_bind(GPU_SHADER_STIPPLE | GPU_SHADER_USE_COLOR);
GPU_basic_shader_stipple(GPU_SHADER_STIPPLE_QUARTTONE);
}
for (S = 0; S < numVerts; S++) {
CCGElem *faceGridData = ccgSubSurf_getFaceGridDataArray(ss, f, S);
if (ln) {
glBegin(GL_QUADS);
for (y = 0; y < gridFaces; y++) {
for (x = 0; x < gridFaces; x++) {
float *a = CCG_grid_elem_co(&key, faceGridData, x, y + 0);
float *b = CCG_grid_elem_co(&key, faceGridData, x + 1, y + 0);
float *c = CCG_grid_elem_co(&key, faceGridData, x + 1, y + 1);
float *d = CCG_grid_elem_co(&key, faceGridData, x, y + 1);
if (cp) glColor4ubv(&cp[4]);
glNormal3fv(ln[1]);
glVertex3fv(d);
if (cp) glColor4ubv(&cp[8]);
glNormal3fv(ln[2]);
glVertex3fv(c);
if (cp) glColor4ubv(&cp[12]);
glNormal3fv(ln[3]);
glVertex3fv(b);
if (cp) glColor4ubv(&cp[0]);
glNormal3fv(ln[0]);
glVertex3fv(a);
if (cp) cp += 16;
ln += 4;
}
}
glEnd();
}
else if (drawSmooth) {
for (y = 0; y < gridFaces; y++) {
CCGElem *a, *b;
glBegin(GL_QUAD_STRIP);
for (x = 0; x < gridFaces; x++) {
a = CCG_grid_elem(&key, faceGridData, x, y + 0);
b = CCG_grid_elem(&key, faceGridData, x, y + 1);
if (cp) glColor4ubv(&cp[0]);
glNormal3fv(CCG_elem_no(&key, a));
glVertex3fv(CCG_elem_co(&key, a));
if (cp) glColor4ubv(&cp[4]);
glNormal3fv(CCG_elem_no(&key, b));
glVertex3fv(CCG_elem_co(&key, b));
if (x != gridFaces - 1) {
if (cp) cp += 16;
}
}
a = CCG_grid_elem(&key, faceGridData, x, y + 0);
b = CCG_grid_elem(&key, faceGridData, x, y + 1);
if (cp) glColor4ubv(&cp[12]);
glNormal3fv(CCG_elem_no(&key, a));
glVertex3fv(CCG_elem_co(&key, a));
if (cp) glColor4ubv(&cp[8]);
glNormal3fv(CCG_elem_no(&key, b));
glVertex3fv(CCG_elem_co(&key, b));
if (cp) cp += 16;
glEnd();
}
}
else {
glBegin(GL_QUADS);
for (y = 0; y < gridFaces; y++) {
for (x = 0; x < gridFaces; x++) {
float *a = CCG_grid_elem_co(&key, faceGridData, x, y + 0);
float *b = CCG_grid_elem_co(&key, faceGridData, x + 1, y + 0);
float *c = CCG_grid_elem_co(&key, faceGridData, x + 1, y + 1);
float *d = CCG_grid_elem_co(&key, faceGridData, x, y + 1);
ccgDM_glNormalFast(a, b, c, d);
if (cp) glColor4ubv(&cp[4]);
glVertex3fv(d);
if (cp) glColor4ubv(&cp[8]);
glVertex3fv(c);
if (cp) glColor4ubv(&cp[12]);
glVertex3fv(b);
if (cp) glColor4ubv(&cp[0]);
glVertex3fv(a);
if (cp) cp += 16;
}
}
glEnd();
}
}
if (draw_option == DM_DRAW_OPTION_STIPPLE)
GPU_basic_shader_bind(GPU_SHADER_USE_COLOR);
}
}
}
}
static void ccgDM_drawMappedEdges(DerivedMesh *dm,
DMSetDrawOptions setDrawOptions,
void *userData)
{
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *) dm;
CCGSubSurf *ss = ccgdm->ss;
CCGEdgeIterator ei;
CCGKey key;
int i, useAging, edgeSize = ccgSubSurf_getEdgeSize(ss);
#ifdef WITH_OPENSUBDIV
if (ccgdm->useGpuBackend) {
/* TODO(sergey): Only draw edges from base mesh. */
if (ccgSubSurf_prepareGLMesh(ccgdm->ss, true, -1)) {
if (!setDrawOptions || (setDrawOptions(userData, 0) != DM_DRAW_OPTION_SKIP)) {
ccgSubSurf_drawGLMesh(ccgdm->ss, false, -1, -1);
}
}
return;
}
#endif
CCG_key_top_level(&key, ss);
ccgSubSurf_getUseAgeCounts(ss, &useAging, NULL, NULL, NULL);
for (ccgSubSurf_initEdgeIterator(ss, &ei); !ccgEdgeIterator_isStopped(&ei); ccgEdgeIterator_next(&ei)) {
CCGEdge *e = ccgEdgeIterator_getCurrent(&ei);
CCGElem *edgeData = ccgSubSurf_getEdgeDataArray(ss, e);
int index = ccgDM_getEdgeMapIndex(ss, e);
glBegin(GL_LINE_STRIP);
if (index != -1 && (!setDrawOptions || (setDrawOptions(userData, index) != DM_DRAW_OPTION_SKIP))) {
if (useAging && !(G.f & G_BACKBUFSEL)) {
int ageCol = 255 - ccgSubSurf_getEdgeAge(ss, e) * 4;
glColor3ub(0, ageCol > 0 ? ageCol : 0, 0);
}
for (i = 0; i < edgeSize - 1; i++) {
glVertex3fv(CCG_elem_offset_co(&key, edgeData, i));
glVertex3fv(CCG_elem_offset_co(&key, edgeData, i + 1));
}
}
glEnd();
}
}
static void ccgDM_drawMappedEdgesInterp(DerivedMesh *dm,
DMSetDrawOptions setDrawOptions,
DMSetDrawInterpOptions setDrawInterpOptions,
void *userData)
{
CCGDerivedMesh *ccgdm = (CCGDerivedMesh *) dm;
CCGSubSurf *ss = ccgdm->ss;
CCGKey key;
CCGEdgeIterator ei;
int i, useAging, edgeSize = ccgSubSurf_getEdgeSize(ss);
#ifdef WITH_OPENSUBDIV
if (ccgdm->useGpuBackend) {
BLI_assert(!"Not currently supported");
return;
}
#endif
CCG_key_top_level(&key, ss);
ccgSubSurf_getUseAgeCounts(ss, &useAging, NULL, NULL, NULL);
for (ccgSubSurf_initEdgeIterator(ss, &ei); !ccgEdgeIterator_isStopped(&ei); ccgEdgeIterator_next(&ei)) {
CCGEdge *e = ccgEdgeIterator_getCurrent(&ei);
CCGElem *edgeData = ccgSubSurf_getEdgeDataArray(ss, e);
int index = ccgDM_getEdgeMapIndex(ss, e);
glBegin(GL_LINE_STRIP);
if (index != -1 && (!setDrawOptions || (setDrawOptions(userData, index) != DM_DRAW_OPTION_SKIP))) {
for (i = 0; i < edgeSize; i++) {
setDrawInterpOptions(userData, index, (float) i / (edgeSize - 1));
if (useAging && !(G.f & G_BACKBUFSEL)) {
int ageCol = 255 - ccgSubSurf_getEdgeAge(ss, e) * 4;
glColor3ub(0, ageCol > 0 ? ageCol : 0, 0);
}
glVertex3fv(CCG_elem_offset_co(&key, edgeData, i));
}
}
glEnd();
}
}
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);
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. */
if (grid_pbvh) {
if (BKE_pbvh_get_ccgdm(ob->sculpt->pbvh) != NULL) {
/* 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 (BKE_pbvh_get_ccgdm(ob->sculpt->pbvh) != NULL) {
BKE_pbvh_free(ob->sculpt->pbvh);
ob->sculpt->pbvh = NULL;
}
ccgdm->pbvh = ob->sculpt->pbvh;
}
if (ccgdm->pbvh) {
/* For grid pbvh, keep track of ccgdm */
if (grid_pbvh) {
BKE_pbvh_set_ccgdm(ccgdm->pbvh, ccgdm);
}
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 = ob->data;
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);
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);
}
/* For grid pbvh, keep track of ccgdm. */
if (grid_pbvh && ccgdm->pbvh) {
BKE_pbvh_set_ccgdm(ccgdm->pbvh, ccgdm);
}
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.drawVerts = ccgDM_drawVerts;
ccgdm->dm.drawEdges = ccgDM_drawEdges;
ccgdm->dm.drawLooseEdges = ccgDM_drawLooseEdges;
ccgdm->dm.drawFacesSolid = ccgDM_drawFacesSolid;
ccgdm->dm.drawFacesTex = ccgDM_drawFacesTex;
ccgdm->dm.drawFacesGLSL = ccgDM_drawFacesGLSL;
ccgdm->dm.drawMappedFaces = ccgDM_drawMappedFaces;
ccgdm->dm.drawMappedFacesTex = ccgDM_drawMappedFacesTex;
ccgdm->dm.drawMappedFacesGLSL = ccgDM_drawMappedFacesGLSL;
ccgdm->dm.drawMappedFacesMat = ccgDM_drawMappedFacesMat;
ccgdm->dm.drawUVEdges = ccgDM_drawUVEdges;
ccgdm->dm.drawMappedEdgesInterp = ccgDM_drawMappedEdgesInterp;
ccgdm->dm.drawMappedEdges = ccgDM_drawMappedEdges;
ccgdm->dm.gpuObjectNew = ccgDM_GPUObjectNew;
ccgdm->dm.copy_gpu_data = ccgDM_copy_gpu_data;
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[GET_INT_FROM_POINTER(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[GET_INT_FROM_POINTER(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[GET_INT_FROM_POINTER(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);
#if 0
/* this is not in trunk, can gives problems because colors initialize
* as black, just don't do it!, it works fine - campbell */
if (!CustomData_has_layer(&ccgdm->dm.faceData, CD_MCOL))
DM_add_tessface_layer(&ccgdm->dm, CD_MCOL, CD_CALLOC, NULL);
mcol = DM_get_tessface_data_layer(&ccgdm->dm, CD_MCOL);
#endif
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 = GET_INT_FROM_POINTER(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] = GET_INT_FROM_POINTER(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 = GET_INT_FROM_POINTER(ccgSubSurf_getEdgeEdgeHandle(e));
CCGVert *v;
v = ccgSubSurf_getEdgeVert0(e);
vertIdx[0] = GET_INT_FROM_POINTER(ccgSubSurf_getVertVertHandle(v));
v = ccgSubSurf_getEdgeVert1(e);
vertIdx[1] = GET_INT_FROM_POINTER(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 = GET_INT_FROM_POINTER(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 choosed 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) &&
(openSubdiv_supportGPUDisplay());
#else
(void)flags;
return false;
#endif
}
struct DerivedMesh *subsurf_make_derived_from_derived(
struct DerivedMesh *dm,
struct SubsurfModifierData *smd,
float (*vertCos)[3],
SubsurfFlags flags)
{
int useSimple = (smd->subdivType == ME_SIMPLE_SUBSURF) ? CCG_SIMPLE_SUBDIV : 0;
CCGFlags useAging = (smd->flags & eSubsurfModifierFlag_DebugIncr) ? CCG_USE_AGING : 0;
int useSubsurfUv = smd->flags & eSubsurfModifierFlag_SubsurfUv;
int drawInteriorEdges = !(smd->flags & eSubsurfModifierFlag_ControlEdges);
CCGDerivedMesh *result;
bool use_gpu_backend = subsurf_use_gpu_backend(flags);
/* note: editmode calculation can only run once per
* modifier stack evaluation (uses freed cache) [#36299] */
if (flags & SUBSURF_FOR_EDIT_MODE) {
int levels = (smd->modifier.scene) ? get_render_subsurf_level(&smd->modifier.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 = (smd->modifier.scene) ? get_render_subsurf_level(&smd->modifier.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 = (smd->modifier.scene) ? get_render_subsurf_level(&smd->modifier.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 previos
* 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 = GET_INT_FROM_POINTER(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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