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blender-archive/source/blender/blenkernel/intern/CCGSubSurf_legacy.c
Sergey Sharybin edb2e96cd5 Fix T46851: Crash on multires more than million
yet another bug introduced by recent shadowing changes -- q and r CCG arrays
were overwritten by the temporary evaluation because the code was changed to
use global pointers instead of the local ones.

Naming of the variables could be changed to be a bit more accurate.
2015-11-24 15:25:19 +05:00

1182 lines
35 KiB
C

/*
* ***** 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.
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file blender/blenkernel/intern/CCGSubSurf_legacy.c
* \ingroup bke
*/
#include "MEM_guardedalloc.h"
#include "BLI_sys_types.h" // for intptr_t support
#include "BLI_utildefines.h" /* for BLI_assert */
#include "BLI_math.h"
#include "CCGSubSurf.h"
#include "CCGSubSurf_intern.h"
#define FACE_calcIFNo(f, lvl, S, x, y, no) _face_calcIFNo(f, lvl, S, x, y, no, subdivLevels, vertDataSize)
/* TODO(sergey): Deduplicate the following functions/ */
static void *_edge_getCoVert(CCGEdge *e, CCGVert *v, int lvl, int x, int dataSize)
{
int levelBase = ccg_edgebase(lvl);
if (v == e->v0) {
return &EDGE_getLevelData(e)[dataSize * (levelBase + x)];
}
else {
return &EDGE_getLevelData(e)[dataSize * (levelBase + (1 << lvl) - x)];
}
}
/* *************************************************** */
static int _edge_isBoundary(const CCGEdge *e)
{
return e->numFaces < 2;
}
static int _vert_isBoundary(const CCGVert *v)
{
int i;
for (i = 0; i < v->numEdges; i++)
if (_edge_isBoundary(v->edges[i]))
return 1;
return 0;
}
static CCGVert *_edge_getOtherVert(CCGEdge *e, CCGVert *vQ)
{
if (vQ == e->v0) {
return e->v1;
}
else {
return e->v0;
}
}
static float *_face_getIFNoEdge(CCGFace *f,
CCGEdge *e,
int f_ed_idx,
int lvl,
int eX, int eY,
int levels,
int dataSize,
int normalDataOffset)
{
return (float *) ((byte *) ccg_face_getIFCoEdge(f, e, f_ed_idx, lvl, eX, eY, levels, dataSize) + normalDataOffset);
}
static void _face_calcIFNo(CCGFace *f,
int lvl,
int S,
int x, int y,
float no[3],
int levels,
int dataSize)
{
float *a = ccg_face_getIFCo(f, lvl, S, x + 0, y + 0, levels, dataSize);
float *b = ccg_face_getIFCo(f, lvl, S, x + 1, y + 0, levels, dataSize);
float *c = ccg_face_getIFCo(f, lvl, S, x + 1, y + 1, levels, dataSize);
float *d = ccg_face_getIFCo(f, lvl, S, x + 0, y + 1, levels, dataSize);
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(no);
}
static int VERT_seam(const CCGVert *v)
{
return ((v->flags & Vert_eSeam) != 0);
}
static float EDGE_getSharpness(CCGEdge *e, int lvl)
{
if (!lvl)
return e->crease;
else if (!e->crease)
return 0.0f;
else if (e->crease - lvl < 0.0f)
return 0.0f;
else
return e->crease - lvl;
}
static void ccgSubSurf__calcVertNormals(CCGSubSurf *ss,
CCGVert **effectedV, CCGEdge **effectedE, CCGFace **effectedF,
int numEffectedV, int numEffectedE, int numEffectedF)
{
int i, ptrIdx;
int subdivLevels = ss->subdivLevels;
int lvl = ss->subdivLevels;
int edgeSize = ccg_edgesize(lvl);
int gridSize = ccg_gridsize(lvl);
int normalDataOffset = ss->normalDataOffset;
int vertDataSize = ss->meshIFC.vertDataSize;
#pragma omp parallel for private(ptrIdx) if (numEffectedF * edgeSize * edgeSize * 4 >= CCG_OMP_LIMIT)
for (ptrIdx = 0; ptrIdx < numEffectedF; ptrIdx++) {
CCGFace *f = (CCGFace *) effectedF[ptrIdx];
int S, x, y;
float no[3];
for (S = 0; S < f->numVerts; S++) {
for (y = 0; y < gridSize - 1; y++) {
for (x = 0; x < gridSize - 1; x++) {
NormZero(FACE_getIFNo(f, lvl, S, x, y));
}
}
if (FACE_getEdges(f)[(S - 1 + f->numVerts) % f->numVerts]->flags & Edge_eEffected) {
for (x = 0; x < gridSize - 1; x++) {
NormZero(FACE_getIFNo(f, lvl, S, x, gridSize - 1));
}
}
if (FACE_getEdges(f)[S]->flags & Edge_eEffected) {
for (y = 0; y < gridSize - 1; y++) {
NormZero(FACE_getIFNo(f, lvl, S, gridSize - 1, y));
}
}
if (FACE_getVerts(f)[S]->flags & Vert_eEffected) {
NormZero(FACE_getIFNo(f, lvl, S, gridSize - 1, gridSize - 1));
}
}
for (S = 0; S < f->numVerts; S++) {
int yLimit = !(FACE_getEdges(f)[(S - 1 + f->numVerts) % f->numVerts]->flags & Edge_eEffected);
int xLimit = !(FACE_getEdges(f)[S]->flags & Edge_eEffected);
int yLimitNext = xLimit;
int xLimitPrev = yLimit;
for (y = 0; y < gridSize - 1; y++) {
for (x = 0; x < gridSize - 1; x++) {
int xPlusOk = (!xLimit || x < gridSize - 2);
int yPlusOk = (!yLimit || y < gridSize - 2);
FACE_calcIFNo(f, lvl, S, x, y, no);
NormAdd(FACE_getIFNo(f, lvl, S, x + 0, y + 0), no);
if (xPlusOk)
NormAdd(FACE_getIFNo(f, lvl, S, x + 1, y + 0), no);
if (yPlusOk)
NormAdd(FACE_getIFNo(f, lvl, S, x + 0, y + 1), no);
if (xPlusOk && yPlusOk) {
if (x < gridSize - 2 || y < gridSize - 2 || FACE_getVerts(f)[S]->flags & Vert_eEffected) {
NormAdd(FACE_getIFNo(f, lvl, S, x + 1, y + 1), no);
}
}
if (x == 0 && y == 0) {
int K;
if (!yLimitNext || 1 < gridSize - 1)
NormAdd(FACE_getIFNo(f, lvl, (S + 1) % f->numVerts, 0, 1), no);
if (!xLimitPrev || 1 < gridSize - 1)
NormAdd(FACE_getIFNo(f, lvl, (S - 1 + f->numVerts) % f->numVerts, 1, 0), no);
for (K = 0; K < f->numVerts; K++) {
if (K != S) {
NormAdd(FACE_getIFNo(f, lvl, K, 0, 0), no);
}
}
}
else if (y == 0) {
NormAdd(FACE_getIFNo(f, lvl, (S + 1) % f->numVerts, 0, x), no);
if (!yLimitNext || x < gridSize - 2)
NormAdd(FACE_getIFNo(f, lvl, (S + 1) % f->numVerts, 0, x + 1), no);
}
else if (x == 0) {
NormAdd(FACE_getIFNo(f, lvl, (S - 1 + f->numVerts) % f->numVerts, y, 0), no);
if (!xLimitPrev || y < gridSize - 2)
NormAdd(FACE_getIFNo(f, lvl, (S - 1 + f->numVerts) % f->numVerts, y + 1, 0), no);
}
}
}
}
}
/* XXX can I reduce the number of normalisations here? */
for (ptrIdx = 0; ptrIdx < numEffectedV; ptrIdx++) {
CCGVert *v = (CCGVert *) effectedV[ptrIdx];
float *no = VERT_getNo(v, lvl);
NormZero(no);
for (i = 0; i < v->numFaces; i++) {
CCGFace *f = v->faces[i];
NormAdd(no, FACE_getIFNo(f, lvl, ccg_face_getVertIndex(f, v), gridSize - 1, gridSize - 1));
}
if (UNLIKELY(v->numFaces == 0)) {
NormCopy(no, VERT_getCo(v, lvl));
}
Normalize(no);
for (i = 0; i < v->numFaces; i++) {
CCGFace *f = v->faces[i];
NormCopy(FACE_getIFNo(f, lvl, ccg_face_getVertIndex(f, v), gridSize - 1, gridSize - 1), no);
}
}
for (ptrIdx = 0; ptrIdx < numEffectedE; ptrIdx++) {
CCGEdge *e = (CCGEdge *) effectedE[ptrIdx];
if (e->numFaces) {
CCGFace *fLast = e->faces[e->numFaces - 1];
int x;
for (i = 0; i < e->numFaces - 1; i++) {
CCGFace *f = e->faces[i];
const int f_ed_idx = ccg_face_getEdgeIndex(f, e);
const int f_ed_idx_last = ccg_face_getEdgeIndex(fLast, e);
for (x = 1; x < edgeSize - 1; x++) {
NormAdd(_face_getIFNoEdge(fLast, e, f_ed_idx_last, lvl, x, 0, subdivLevels, vertDataSize, normalDataOffset),
_face_getIFNoEdge(f, e, f_ed_idx, lvl, x, 0, subdivLevels, vertDataSize, normalDataOffset));
}
}
for (i = 0; i < e->numFaces - 1; i++) {
CCGFace *f = e->faces[i];
const int f_ed_idx = ccg_face_getEdgeIndex(f, e);
const int f_ed_idx_last = ccg_face_getEdgeIndex(fLast, e);
for (x = 1; x < edgeSize - 1; x++) {
NormCopy(_face_getIFNoEdge(f, e, f_ed_idx, lvl, x, 0, subdivLevels, vertDataSize, normalDataOffset),
_face_getIFNoEdge(fLast, e, f_ed_idx_last, lvl, x, 0, subdivLevels, vertDataSize, normalDataOffset));
}
}
}
}
#pragma omp parallel for private(ptrIdx) if (numEffectedF * edgeSize * edgeSize * 4 >= CCG_OMP_LIMIT)
for (ptrIdx = 0; ptrIdx < numEffectedF; ptrIdx++) {
CCGFace *f = (CCGFace *) effectedF[ptrIdx];
int S, x, y;
for (S = 0; S < f->numVerts; S++) {
NormCopy(FACE_getIFNo(f, lvl, (S + 1) % f->numVerts, 0, gridSize - 1),
FACE_getIFNo(f, lvl, S, gridSize - 1, 0));
}
for (S = 0; S < f->numVerts; S++) {
for (y = 0; y < gridSize; y++) {
for (x = 0; x < gridSize; x++) {
float *no = FACE_getIFNo(f, lvl, S, x, y);
Normalize(no);
}
}
VertDataCopy((float *)((byte *)FACE_getCenterData(f) + normalDataOffset),
FACE_getIFNo(f, lvl, S, 0, 0), ss);
for (x = 1; x < gridSize - 1; x++)
NormCopy(FACE_getIENo(f, lvl, S, x),
FACE_getIFNo(f, lvl, S, x, 0));
}
}
for (ptrIdx = 0; ptrIdx < numEffectedE; ptrIdx++) {
CCGEdge *e = (CCGEdge *) effectedE[ptrIdx];
if (e->numFaces) {
CCGFace *f = e->faces[0];
int x;
const int f_ed_idx = ccg_face_getEdgeIndex(f, e);
for (x = 0; x < edgeSize; x++)
NormCopy(EDGE_getNo(e, lvl, x),
_face_getIFNoEdge(f, e, f_ed_idx, lvl, x, 0, subdivLevels, vertDataSize, normalDataOffset));
}
else {
/* set to zero here otherwise the normals are uninitialized memory
* render: tests/animation/knight.blend with valgrind.
* we could be more clever and interpolate vertex normals but these are
* most likely not used so just zero out. */
int x;
for (x = 0; x < edgeSize; x++) {
float *no = EDGE_getNo(e, lvl, x);
NormCopy(no, EDGE_getCo(e, lvl, x));
Normalize(no);
}
}
}
}
static void ccgSubSurf__calcSubdivLevel(
CCGSubSurf *ss,
CCGVert **effectedV, CCGEdge **effectedE, CCGFace **effectedF,
const int numEffectedV, const int numEffectedE, const int numEffectedF, const int curLvl)
{
const int subdivLevels = ss->subdivLevels;
const int nextLvl = curLvl + 1;
int edgeSize = ccg_edgesize(curLvl);
int gridSize = ccg_gridsize(curLvl);
int ptrIdx, i;
int vertDataSize = ss->meshIFC.vertDataSize;
float *q = ss->q, *r = ss->r;
#pragma omp parallel for private(ptrIdx) if (numEffectedF * edgeSize * edgeSize * 4 >= CCG_OMP_LIMIT)
for (ptrIdx = 0; ptrIdx < numEffectedF; ptrIdx++) {
CCGFace *f = (CCGFace *) effectedF[ptrIdx];
int S, x, y;
/* interior face midpoints
* - old interior face points
*/
for (S = 0; S < f->numVerts; S++) {
for (y = 0; y < gridSize - 1; y++) {
for (x = 0; x < gridSize - 1; x++) {
int fx = 1 + 2 * x;
int fy = 1 + 2 * y;
const float *co0 = FACE_getIFCo(f, curLvl, S, x + 0, y + 0);
const float *co1 = FACE_getIFCo(f, curLvl, S, x + 1, y + 0);
const float *co2 = FACE_getIFCo(f, curLvl, S, x + 1, y + 1);
const float *co3 = FACE_getIFCo(f, curLvl, S, x + 0, y + 1);
float *co = FACE_getIFCo(f, nextLvl, S, fx, fy);
VertDataAvg4(co, co0, co1, co2, co3, ss);
}
}
}
/* interior edge midpoints
* - old interior edge points
* - new interior face midpoints
*/
for (S = 0; S < f->numVerts; S++) {
for (x = 0; x < gridSize - 1; x++) {
int fx = x * 2 + 1;
const float *co0 = FACE_getIECo(f, curLvl, S, x + 0);
const float *co1 = FACE_getIECo(f, curLvl, S, x + 1);
const float *co2 = FACE_getIFCo(f, nextLvl, (S + 1) % f->numVerts, 1, fx);
const float *co3 = FACE_getIFCo(f, nextLvl, S, fx, 1);
float *co = FACE_getIECo(f, nextLvl, S, fx);
VertDataAvg4(co, co0, co1, co2, co3, ss);
}
/* interior face interior edge midpoints
* - old interior face points
* - new interior face midpoints
*/
/* vertical */
for (x = 1; x < gridSize - 1; x++) {
for (y = 0; y < gridSize - 1; y++) {
int fx = x * 2;
int fy = y * 2 + 1;
const float *co0 = FACE_getIFCo(f, curLvl, S, x, y + 0);
const float *co1 = FACE_getIFCo(f, curLvl, S, x, y + 1);
const float *co2 = FACE_getIFCo(f, nextLvl, S, fx - 1, fy);
const float *co3 = FACE_getIFCo(f, nextLvl, S, fx + 1, fy);
float *co = FACE_getIFCo(f, nextLvl, S, fx, fy);
VertDataAvg4(co, co0, co1, co2, co3, ss);
}
}
/* horizontal */
for (y = 1; y < gridSize - 1; y++) {
for (x = 0; x < gridSize - 1; x++) {
int fx = x * 2 + 1;
int fy = y * 2;
const float *co0 = FACE_getIFCo(f, curLvl, S, x + 0, y);
const float *co1 = FACE_getIFCo(f, curLvl, S, x + 1, y);
const float *co2 = FACE_getIFCo(f, nextLvl, S, fx, fy - 1);
const float *co3 = FACE_getIFCo(f, nextLvl, S, fx, fy + 1);
float *co = FACE_getIFCo(f, nextLvl, S, fx, fy);
VertDataAvg4(co, co0, co1, co2, co3, ss);
}
}
}
}
/* exterior edge midpoints
* - old exterior edge points
* - new interior face midpoints
*/
for (ptrIdx = 0; ptrIdx < numEffectedE; ptrIdx++) {
CCGEdge *e = (CCGEdge *) effectedE[ptrIdx];
float sharpness = EDGE_getSharpness(e, curLvl);
int x, j;
if (_edge_isBoundary(e) || sharpness > 1.0f) {
for (x = 0; x < edgeSize - 1; x++) {
int fx = x * 2 + 1;
const float *co0 = EDGE_getCo(e, curLvl, x + 0);
const float *co1 = EDGE_getCo(e, curLvl, x + 1);
float *co = EDGE_getCo(e, nextLvl, fx);
VertDataCopy(co, co0, ss);
VertDataAdd(co, co1, ss);
VertDataMulN(co, 0.5f, ss);
}
}
else {
for (x = 0; x < edgeSize - 1; x++) {
int fx = x * 2 + 1;
const float *co0 = EDGE_getCo(e, curLvl, x + 0);
const float *co1 = EDGE_getCo(e, curLvl, x + 1);
float *co = EDGE_getCo(e, nextLvl, fx);
int numFaces = 0;
VertDataCopy(q, co0, ss);
VertDataAdd(q, co1, ss);
for (j = 0; j < e->numFaces; j++) {
CCGFace *f = e->faces[j];
const int f_ed_idx = ccg_face_getEdgeIndex(f, e);
VertDataAdd(q, ccg_face_getIFCoEdge(f, e, f_ed_idx, nextLvl, fx, 1, subdivLevels, vertDataSize), ss);
numFaces++;
}
VertDataMulN(q, 1.0f / (2.0f + numFaces), ss);
VertDataCopy(r, co0, ss);
VertDataAdd(r, co1, ss);
VertDataMulN(r, 0.5f, ss);
VertDataCopy(co, q, ss);
VertDataSub(r, q, ss);
VertDataMulN(r, sharpness, ss);
VertDataAdd(co, r, ss);
}
}
}
/* exterior vertex shift
* - old vertex points (shifting)
* - old exterior edge points
* - new interior face midpoints
*/
for (ptrIdx = 0; ptrIdx < numEffectedV; ptrIdx++) {
CCGVert *v = (CCGVert *) effectedV[ptrIdx];
const float *co = VERT_getCo(v, curLvl);
float *nCo = VERT_getCo(v, nextLvl);
int sharpCount = 0, allSharp = 1;
float avgSharpness = 0.0;
int j, seam = VERT_seam(v), seamEdges = 0;
for (j = 0; j < v->numEdges; j++) {
CCGEdge *e = v->edges[j];
float sharpness = EDGE_getSharpness(e, curLvl);
if (seam && _edge_isBoundary(e))
seamEdges++;
if (sharpness != 0.0f) {
sharpCount++;
avgSharpness += sharpness;
}
else {
allSharp = 0;
}
}
if (sharpCount) {
avgSharpness /= sharpCount;
if (avgSharpness > 1.0f) {
avgSharpness = 1.0f;
}
}
if (seamEdges < 2 || seamEdges != v->numEdges)
seam = 0;
if (!v->numEdges || ss->meshIFC.simpleSubdiv) {
VertDataCopy(nCo, co, ss);
}
else if (_vert_isBoundary(v)) {
int numBoundary = 0;
VertDataZero(r, ss);
for (j = 0; j < v->numEdges; j++) {
CCGEdge *e = v->edges[j];
if (_edge_isBoundary(e)) {
VertDataAdd(r, _edge_getCoVert(e, v, curLvl, 1, vertDataSize), ss);
numBoundary++;
}
}
VertDataCopy(nCo, co, ss);
VertDataMulN(nCo, 0.75f, ss);
VertDataMulN(r, 0.25f / numBoundary, ss);
VertDataAdd(nCo, r, ss);
}
else {
const int cornerIdx = (1 + (1 << (curLvl))) - 2;
int numEdges = 0, numFaces = 0;
VertDataZero(q, ss);
for (j = 0; j < v->numFaces; j++) {
CCGFace *f = v->faces[j];
VertDataAdd(q, FACE_getIFCo(f, nextLvl, ccg_face_getVertIndex(f, v), cornerIdx, cornerIdx), ss);
numFaces++;
}
VertDataMulN(q, 1.0f / numFaces, ss);
VertDataZero(r, ss);
for (j = 0; j < v->numEdges; j++) {
CCGEdge *e = v->edges[j];
VertDataAdd(r, _edge_getCoVert(e, v, curLvl, 1, vertDataSize), ss);
numEdges++;
}
VertDataMulN(r, 1.0f / numEdges, ss);
VertDataCopy(nCo, co, ss);
VertDataMulN(nCo, numEdges - 2.0f, ss);
VertDataAdd(nCo, q, ss);
VertDataAdd(nCo, r, ss);
VertDataMulN(nCo, 1.0f / numEdges, ss);
}
if ((sharpCount > 1 && v->numFaces) || seam) {
VertDataZero(q, ss);
if (seam) {
avgSharpness = 1.0f;
sharpCount = seamEdges;
allSharp = 1;
}
for (j = 0; j < v->numEdges; j++) {
CCGEdge *e = v->edges[j];
float sharpness = EDGE_getSharpness(e, curLvl);
if (seam) {
if (_edge_isBoundary(e))
VertDataAdd(q, _edge_getCoVert(e, v, curLvl, 1, vertDataSize), ss);
}
else if (sharpness != 0.0f) {
VertDataAdd(q, _edge_getCoVert(e, v, curLvl, 1, vertDataSize), ss);
}
}
VertDataMulN(q, (float) 1 / sharpCount, ss);
if (sharpCount != 2 || allSharp) {
/* q = q + (co - q) * avgSharpness */
VertDataCopy(r, co, ss);
VertDataSub(r, q, ss);
VertDataMulN(r, avgSharpness, ss);
VertDataAdd(q, r, ss);
}
/* r = co * 0.75 + q * 0.25 */
VertDataCopy(r, co, ss);
VertDataMulN(r, 0.75f, ss);
VertDataMulN(q, 0.25f, ss);
VertDataAdd(r, q, ss);
/* nCo = nCo + (r - nCo) * avgSharpness */
VertDataSub(r, nCo, ss);
VertDataMulN(r, avgSharpness, ss);
VertDataAdd(nCo, r, ss);
}
}
/* exterior edge interior shift
* - old exterior edge midpoints (shifting)
* - old exterior edge midpoints
* - new interior face midpoints
*/
for (ptrIdx = 0; ptrIdx < numEffectedE; ptrIdx++) {
CCGEdge *e = (CCGEdge *) effectedE[ptrIdx];
float sharpness = EDGE_getSharpness(e, curLvl);
int sharpCount = 0;
float avgSharpness = 0.0;
int x, j;
if (sharpness != 0.0f) {
sharpCount = 2;
avgSharpness += sharpness;
if (avgSharpness > 1.0f) {
avgSharpness = 1.0f;
}
}
else {
sharpCount = 0;
avgSharpness = 0;
}
if (_edge_isBoundary(e)) {
for (x = 1; x < edgeSize - 1; x++) {
int fx = x * 2;
const float *co = EDGE_getCo(e, curLvl, x);
float *nCo = EDGE_getCo(e, nextLvl, fx);
/* Average previous level's endpoints */
VertDataCopy(r, EDGE_getCo(e, curLvl, x - 1), ss);
VertDataAdd(r, EDGE_getCo(e, curLvl, x + 1), ss);
VertDataMulN(r, 0.5f, ss);
/* nCo = nCo * 0.75 + r * 0.25 */
VertDataCopy(nCo, co, ss);
VertDataMulN(nCo, 0.75f, ss);
VertDataMulN(r, 0.25f, ss);
VertDataAdd(nCo, r, ss);
}
}
else {
for (x = 1; x < edgeSize - 1; x++) {
int fx = x * 2;
const float *co = EDGE_getCo(e, curLvl, x);
float *nCo = EDGE_getCo(e, nextLvl, fx);
int numFaces = 0;
VertDataZero(q, ss);
VertDataZero(r, ss);
VertDataAdd(r, EDGE_getCo(e, curLvl, x - 1), ss);
VertDataAdd(r, EDGE_getCo(e, curLvl, x + 1), ss);
for (j = 0; j < e->numFaces; j++) {
CCGFace *f = e->faces[j];
int f_ed_idx = ccg_face_getEdgeIndex(f, e);
VertDataAdd(q, ccg_face_getIFCoEdge(f, e, f_ed_idx, nextLvl, fx - 1, 1, subdivLevels, vertDataSize), ss);
VertDataAdd(q, ccg_face_getIFCoEdge(f, e, f_ed_idx, nextLvl, fx + 1, 1, subdivLevels, vertDataSize), ss);
VertDataAdd(r, ccg_face_getIFCoEdge(f, e, f_ed_idx, curLvl, x, 1, subdivLevels, vertDataSize), ss);
numFaces++;
}
VertDataMulN(q, 1.0f / (numFaces * 2.0f), ss);
VertDataMulN(r, 1.0f / (2.0f + numFaces), ss);
VertDataCopy(nCo, co, ss);
VertDataMulN(nCo, (float) numFaces, ss);
VertDataAdd(nCo, q, ss);
VertDataAdd(nCo, r, ss);
VertDataMulN(nCo, 1.0f / (2 + numFaces), ss);
if (sharpCount == 2) {
VertDataCopy(q, co, ss);
VertDataMulN(q, 6.0f, ss);
VertDataAdd(q, EDGE_getCo(e, curLvl, x - 1), ss);
VertDataAdd(q, EDGE_getCo(e, curLvl, x + 1), ss);
VertDataMulN(q, 1 / 8.0f, ss);
VertDataSub(q, nCo, ss);
VertDataMulN(q, avgSharpness, ss);
VertDataAdd(nCo, q, ss);
}
}
}
}
#pragma omp parallel private(ptrIdx) if (numEffectedF * edgeSize * edgeSize * 4 >= CCG_OMP_LIMIT)
{
float *q_thread, *r_thread;
#pragma omp critical
{
q_thread = MEM_mallocN(ss->meshIFC.vertDataSize, "CCGSubsurf q");
r_thread = MEM_mallocN(ss->meshIFC.vertDataSize, "CCGSubsurf r");
}
#pragma omp for schedule(static)
for (ptrIdx = 0; ptrIdx < numEffectedF; ptrIdx++) {
CCGFace *f = (CCGFace *) effectedF[ptrIdx];
int S, x, y;
/* interior center point shift
* - old face center point (shifting)
* - old interior edge points
* - new interior face midpoints
*/
VertDataZero(q_thread, ss);
for (S = 0; S < f->numVerts; S++) {
VertDataAdd(q_thread, FACE_getIFCo(f, nextLvl, S, 1, 1), ss);
}
VertDataMulN(q_thread, 1.0f / f->numVerts, ss);
VertDataZero(r_thread, ss);
for (S = 0; S < f->numVerts; S++) {
VertDataAdd(r_thread, FACE_getIECo(f, curLvl, S, 1), ss);
}
VertDataMulN(r_thread, 1.0f / f->numVerts, ss);
VertDataMulN((float *)FACE_getCenterData(f), f->numVerts - 2.0f, ss);
VertDataAdd((float *)FACE_getCenterData(f), q_thread, ss);
VertDataAdd((float *)FACE_getCenterData(f), r_thread, ss);
VertDataMulN((float *)FACE_getCenterData(f), 1.0f / f->numVerts, ss);
for (S = 0; S < f->numVerts; S++) {
/* interior face shift
* - old interior face point (shifting)
* - new interior edge midpoints
* - new interior face midpoints
*/
for (x = 1; x < gridSize - 1; x++) {
for (y = 1; y < gridSize - 1; y++) {
int fx = x * 2;
int fy = y * 2;
const float *co = FACE_getIFCo(f, curLvl, S, x, y);
float *nCo = FACE_getIFCo(f, nextLvl, S, fx, fy);
VertDataAvg4(q_thread,
FACE_getIFCo(f, nextLvl, S, fx - 1, fy - 1),
FACE_getIFCo(f, nextLvl, S, fx + 1, fy - 1),
FACE_getIFCo(f, nextLvl, S, fx + 1, fy + 1),
FACE_getIFCo(f, nextLvl, S, fx - 1, fy + 1),
ss);
VertDataAvg4(r_thread,
FACE_getIFCo(f, nextLvl, S, fx - 1, fy + 0),
FACE_getIFCo(f, nextLvl, S, fx + 1, fy + 0),
FACE_getIFCo(f, nextLvl, S, fx + 0, fy - 1),
FACE_getIFCo(f, nextLvl, S, fx + 0, fy + 1),
ss);
VertDataCopy(nCo, co, ss);
VertDataSub(nCo, q_thread, ss);
VertDataMulN(nCo, 0.25f, ss);
VertDataAdd(nCo, r_thread, ss);
}
}
/* interior edge interior shift
* - old interior edge point (shifting)
* - new interior edge midpoints
* - new interior face midpoints
*/
for (x = 1; x < gridSize - 1; x++) {
int fx = x * 2;
const float *co = FACE_getIECo(f, curLvl, S, x);
float *nCo = FACE_getIECo(f, nextLvl, S, fx);
VertDataAvg4(q_thread,
FACE_getIFCo(f, nextLvl, (S + 1) % f->numVerts, 1, fx - 1),
FACE_getIFCo(f, nextLvl, (S + 1) % f->numVerts, 1, fx + 1),
FACE_getIFCo(f, nextLvl, S, fx + 1, +1),
FACE_getIFCo(f, nextLvl, S, fx - 1, +1), ss);
VertDataAvg4(r_thread,
FACE_getIECo(f, nextLvl, S, fx - 1),
FACE_getIECo(f, nextLvl, S, fx + 1),
FACE_getIFCo(f, nextLvl, (S + 1) % f->numVerts, 1, fx),
FACE_getIFCo(f, nextLvl, S, fx, 1),
ss);
VertDataCopy(nCo, co, ss);
VertDataSub(nCo, q_thread, ss);
VertDataMulN(nCo, 0.25f, ss);
VertDataAdd(nCo, r_thread, ss);
}
}
}
#pragma omp critical
{
MEM_freeN(q_thread);
MEM_freeN(r_thread);
}
}
/* copy down */
edgeSize = ccg_edgesize(nextLvl);
gridSize = ccg_gridsize(nextLvl);
const int cornerIdx = gridSize - 1;
#pragma omp parallel for private(i) if (numEffectedF * edgeSize * edgeSize * 4 >= CCG_OMP_LIMIT)
for (i = 0; i < numEffectedE; i++) {
CCGEdge *e = effectedE[i];
VertDataCopy(EDGE_getCo(e, nextLvl, 0), VERT_getCo(e->v0, nextLvl), ss);
VertDataCopy(EDGE_getCo(e, nextLvl, edgeSize - 1), VERT_getCo(e->v1, nextLvl), ss);
}
#pragma omp parallel for private(i) if (numEffectedF * edgeSize * edgeSize * 4 >= CCG_OMP_LIMIT)
for (i = 0; i < numEffectedF; i++) {
CCGFace *f = effectedF[i];
int S, x;
for (S = 0; S < f->numVerts; S++) {
CCGEdge *e = FACE_getEdges(f)[S];
CCGEdge *prevE = FACE_getEdges(f)[(S + f->numVerts - 1) % f->numVerts];
VertDataCopy(FACE_getIFCo(f, nextLvl, S, 0, 0), (float *)FACE_getCenterData(f), ss);
VertDataCopy(FACE_getIECo(f, nextLvl, S, 0), (float *)FACE_getCenterData(f), ss);
VertDataCopy(FACE_getIFCo(f, nextLvl, S, cornerIdx, cornerIdx), VERT_getCo(FACE_getVerts(f)[S], nextLvl), ss);
VertDataCopy(FACE_getIECo(f, nextLvl, S, cornerIdx), EDGE_getCo(FACE_getEdges(f)[S], nextLvl, cornerIdx), ss);
for (x = 1; x < gridSize - 1; x++) {
float *co = FACE_getIECo(f, nextLvl, S, x);
VertDataCopy(FACE_getIFCo(f, nextLvl, S, x, 0), co, ss);
VertDataCopy(FACE_getIFCo(f, nextLvl, (S + 1) % f->numVerts, 0, x), co, ss);
}
for (x = 0; x < gridSize - 1; x++) {
int eI = gridSize - 1 - x;
VertDataCopy(FACE_getIFCo(f, nextLvl, S, cornerIdx, x), _edge_getCoVert(e, FACE_getVerts(f)[S], nextLvl, eI, vertDataSize), ss);
VertDataCopy(FACE_getIFCo(f, nextLvl, S, x, cornerIdx), _edge_getCoVert(prevE, FACE_getVerts(f)[S], nextLvl, eI, vertDataSize), ss);
}
}
}
}
void ccgSubSurf__sync_legacy(CCGSubSurf *ss)
{
CCGVert **effectedV;
CCGEdge **effectedE;
CCGFace **effectedF;
int numEffectedV, numEffectedE, numEffectedF;
int subdivLevels = ss->subdivLevels;
int vertDataSize = ss->meshIFC.vertDataSize;
int i, j, ptrIdx, S;
int curLvl, nextLvl;
void *q = ss->q, *r = ss->r;
effectedV = MEM_mallocN(sizeof(*effectedV) * ss->vMap->numEntries, "CCGSubsurf effectedV");
effectedE = MEM_mallocN(sizeof(*effectedE) * ss->eMap->numEntries, "CCGSubsurf effectedE");
effectedF = MEM_mallocN(sizeof(*effectedF) * ss->fMap->numEntries, "CCGSubsurf effectedF");
numEffectedV = numEffectedE = numEffectedF = 0;
for (i = 0; i < ss->vMap->curSize; i++) {
CCGVert *v = (CCGVert *) ss->vMap->buckets[i];
for (; v; v = v->next) {
if (v->flags & Vert_eEffected) {
effectedV[numEffectedV++] = v;
for (j = 0; j < v->numEdges; j++) {
CCGEdge *e = v->edges[j];
if (!(e->flags & Edge_eEffected)) {
effectedE[numEffectedE++] = e;
e->flags |= Edge_eEffected;
}
}
for (j = 0; j < v->numFaces; j++) {
CCGFace *f = v->faces[j];
if (!(f->flags & Face_eEffected)) {
effectedF[numEffectedF++] = f;
f->flags |= Face_eEffected;
}
}
}
}
}
curLvl = 0;
nextLvl = curLvl + 1;
for (ptrIdx = 0; ptrIdx < numEffectedF; ptrIdx++) {
CCGFace *f = effectedF[ptrIdx];
void *co = FACE_getCenterData(f);
VertDataZero(co, ss);
for (i = 0; i < f->numVerts; i++) {
VertDataAdd(co, VERT_getCo(FACE_getVerts(f)[i], curLvl), ss);
}
VertDataMulN(co, 1.0f / f->numVerts, ss);
f->flags = 0;
}
for (ptrIdx = 0; ptrIdx < numEffectedE; ptrIdx++) {
CCGEdge *e = effectedE[ptrIdx];
void *co = EDGE_getCo(e, nextLvl, 1);
float sharpness = EDGE_getSharpness(e, curLvl);
if (_edge_isBoundary(e) || sharpness >= 1.0f) {
VertDataCopy(co, VERT_getCo(e->v0, curLvl), ss);
VertDataAdd(co, VERT_getCo(e->v1, curLvl), ss);
VertDataMulN(co, 0.5f, ss);
}
else {
int numFaces = 0;
VertDataCopy(q, VERT_getCo(e->v0, curLvl), ss);
VertDataAdd(q, VERT_getCo(e->v1, curLvl), ss);
for (i = 0; i < e->numFaces; i++) {
CCGFace *f = e->faces[i];
VertDataAdd(q, (float *)FACE_getCenterData(f), ss);
numFaces++;
}
VertDataMulN(q, 1.0f / (2.0f + numFaces), ss);
VertDataCopy(r, VERT_getCo(e->v0, curLvl), ss);
VertDataAdd(r, VERT_getCo(e->v1, curLvl), ss);
VertDataMulN(r, 0.5f, ss);
VertDataCopy(co, q, ss);
VertDataSub(r, q, ss);
VertDataMulN(r, sharpness, ss);
VertDataAdd(co, r, ss);
}
/* edge flags cleared later */
}
for (ptrIdx = 0; ptrIdx < numEffectedV; ptrIdx++) {
CCGVert *v = effectedV[ptrIdx];
void *co = VERT_getCo(v, curLvl);
void *nCo = VERT_getCo(v, nextLvl);
int sharpCount = 0, allSharp = 1;
float avgSharpness = 0.0;
int seam = VERT_seam(v), seamEdges = 0;
for (i = 0; i < v->numEdges; i++) {
CCGEdge *e = v->edges[i];
float sharpness = EDGE_getSharpness(e, curLvl);
if (seam && _edge_isBoundary(e))
seamEdges++;
if (sharpness != 0.0f) {
sharpCount++;
avgSharpness += sharpness;
}
else {
allSharp = 0;
}
}
if (sharpCount) {
avgSharpness /= sharpCount;
if (avgSharpness > 1.0f) {
avgSharpness = 1.0f;
}
}
if (seamEdges < 2 || seamEdges != v->numEdges)
seam = 0;
if (!v->numEdges || ss->meshIFC.simpleSubdiv) {
VertDataCopy(nCo, co, ss);
}
else if (_vert_isBoundary(v)) {
int numBoundary = 0;
VertDataZero(r, ss);
for (i = 0; i < v->numEdges; i++) {
CCGEdge *e = v->edges[i];
if (_edge_isBoundary(e)) {
VertDataAdd(r, VERT_getCo(_edge_getOtherVert(e, v), curLvl), ss);
numBoundary++;
}
}
VertDataCopy(nCo, co, ss);
VertDataMulN(nCo, 0.75f, ss);
VertDataMulN(r, 0.25f / numBoundary, ss);
VertDataAdd(nCo, r, ss);
}
else {
int numEdges = 0, numFaces = 0;
VertDataZero(q, ss);
for (i = 0; i < v->numFaces; i++) {
CCGFace *f = v->faces[i];
VertDataAdd(q, (float *)FACE_getCenterData(f), ss);
numFaces++;
}
VertDataMulN(q, 1.0f / numFaces, ss);
VertDataZero(r, ss);
for (i = 0; i < v->numEdges; i++) {
CCGEdge *e = v->edges[i];
VertDataAdd(r, VERT_getCo(_edge_getOtherVert(e, v), curLvl), ss);
numEdges++;
}
VertDataMulN(r, 1.0f / numEdges, ss);
VertDataCopy(nCo, co, ss);
VertDataMulN(nCo, numEdges - 2.0f, ss);
VertDataAdd(nCo, q, ss);
VertDataAdd(nCo, r, ss);
VertDataMulN(nCo, 1.0f / numEdges, ss);
}
if (sharpCount > 1 || seam) {
VertDataZero(q, ss);
if (seam) {
avgSharpness = 1.0f;
sharpCount = seamEdges;
allSharp = 1;
}
for (i = 0; i < v->numEdges; i++) {
CCGEdge *e = v->edges[i];
float sharpness = EDGE_getSharpness(e, curLvl);
if (seam) {
if (_edge_isBoundary(e)) {
CCGVert *oV = _edge_getOtherVert(e, v);
VertDataAdd(q, VERT_getCo(oV, curLvl), ss);
}
}
else if (sharpness != 0.0f) {
CCGVert *oV = _edge_getOtherVert(e, v);
VertDataAdd(q, VERT_getCo(oV, curLvl), ss);
}
}
VertDataMulN(q, (float) 1 / sharpCount, ss);
if (sharpCount != 2 || allSharp) {
/* q = q + (co - q) * avgSharpness */
VertDataCopy(r, co, ss);
VertDataSub(r, q, ss);
VertDataMulN(r, avgSharpness, ss);
VertDataAdd(q, r, ss);
}
/* r = co * 0.75 + q * 0.25 */
VertDataCopy(r, co, ss);
VertDataMulN(r, 0.75f, ss);
VertDataMulN(q, 0.25f, ss);
VertDataAdd(r, q, ss);
/* nCo = nCo + (r - nCo) * avgSharpness */
VertDataSub(r, nCo, ss);
VertDataMulN(r, avgSharpness, ss);
VertDataAdd(nCo, r, ss);
}
/* vert flags cleared later */
}
if (ss->useAgeCounts) {
for (i = 0; i < numEffectedV; i++) {
CCGVert *v = effectedV[i];
byte *userData = ccgSubSurf_getVertUserData(ss, v);
*((int *) &userData[ss->vertUserAgeOffset]) = ss->currentAge;
}
for (i = 0; i < numEffectedE; i++) {
CCGEdge *e = effectedE[i];
byte *userData = ccgSubSurf_getEdgeUserData(ss, e);
*((int *) &userData[ss->edgeUserAgeOffset]) = ss->currentAge;
}
for (i = 0; i < numEffectedF; i++) {
CCGFace *f = effectedF[i];
byte *userData = ccgSubSurf_getFaceUserData(ss, f);
*((int *) &userData[ss->faceUserAgeOffset]) = ss->currentAge;
}
}
for (i = 0; i < numEffectedE; i++) {
CCGEdge *e = effectedE[i];
VertDataCopy(EDGE_getCo(e, nextLvl, 0), VERT_getCo(e->v0, nextLvl), ss);
VertDataCopy(EDGE_getCo(e, nextLvl, 2), VERT_getCo(e->v1, nextLvl), ss);
}
for (i = 0; i < numEffectedF; i++) {
CCGFace *f = effectedF[i];
for (S = 0; S < f->numVerts; S++) {
CCGEdge *e = FACE_getEdges(f)[S];
CCGEdge *prevE = FACE_getEdges(f)[(S + f->numVerts - 1) % f->numVerts];
VertDataCopy(FACE_getIFCo(f, nextLvl, S, 0, 0), (float *)FACE_getCenterData(f), ss);
VertDataCopy(FACE_getIECo(f, nextLvl, S, 0), (float *)FACE_getCenterData(f), ss);
VertDataCopy(FACE_getIFCo(f, nextLvl, S, 1, 1), VERT_getCo(FACE_getVerts(f)[S], nextLvl), ss);
VertDataCopy(FACE_getIECo(f, nextLvl, S, 1), EDGE_getCo(FACE_getEdges(f)[S], nextLvl, 1), ss);
VertDataCopy(FACE_getIFCo(f, nextLvl, S, 1, 0), _edge_getCoVert(e, FACE_getVerts(f)[S], nextLvl, 1, vertDataSize), ss);
VertDataCopy(FACE_getIFCo(f, nextLvl, S, 0, 1), _edge_getCoVert(prevE, FACE_getVerts(f)[S], nextLvl, 1, vertDataSize), ss);
}
}
for (curLvl = 1; curLvl < subdivLevels; curLvl++)
ccgSubSurf__calcSubdivLevel(ss,
effectedV, effectedE, effectedF,
numEffectedV, numEffectedE, numEffectedF, curLvl);
if (ss->calcVertNormals)
ccgSubSurf__calcVertNormals(ss,
effectedV, effectedE, effectedF,
numEffectedV, numEffectedE, numEffectedF);
for (ptrIdx = 0; ptrIdx < numEffectedV; ptrIdx++) {
CCGVert *v = effectedV[ptrIdx];
v->flags = 0;
}
for (ptrIdx = 0; ptrIdx < numEffectedE; ptrIdx++) {
CCGEdge *e = effectedE[ptrIdx];
e->flags = 0;
}
MEM_freeN(effectedF);
MEM_freeN(effectedE);
MEM_freeN(effectedV);
#ifdef DUMP_RESULT_GRIDS
ccgSubSurf__dumpCoords(ss);
#endif
}
/* ** Public API exposed to other areas which depends on old CCG code. ** */
/* Update normals for specified faces. */
CCGError ccgSubSurf_updateNormals(CCGSubSurf *ss, CCGFace **effectedF, int numEffectedF)
{
CCGVert **effectedV;
CCGEdge **effectedE;
int i, numEffectedV, numEffectedE, freeF;
ccgSubSurf__allFaces(ss, &effectedF, &numEffectedF, &freeF);
ccgSubSurf__effectedFaceNeighbours(ss, effectedF, numEffectedF,
&effectedV, &numEffectedV, &effectedE, &numEffectedE);
if (ss->calcVertNormals)
ccgSubSurf__calcVertNormals(ss,
effectedV, effectedE, effectedF,
numEffectedV, numEffectedE, numEffectedF);
for (i = 0; i < numEffectedV; i++)
effectedV[i]->flags = 0;
for (i = 0; i < numEffectedE; i++)
effectedE[i]->flags = 0;
for (i = 0; i < numEffectedF; i++)
effectedF[i]->flags = 0;
MEM_freeN(effectedE);
MEM_freeN(effectedV);
if (freeF) MEM_freeN(effectedF);
return eCCGError_None;
}
/* compute subdivision levels from a given starting point, used by
* multires subdivide/propagate, by filling in coordinates at a
* certain level, and then subdividing that up to the highest level */
CCGError ccgSubSurf_updateLevels(CCGSubSurf *ss, int lvl, CCGFace **effectedF, int numEffectedF)
{
CCGVert **effectedV;
CCGEdge **effectedE;
int numEffectedV, numEffectedE, freeF, i;
int curLvl, subdivLevels = ss->subdivLevels;
ccgSubSurf__allFaces(ss, &effectedF, &numEffectedF, &freeF);
ccgSubSurf__effectedFaceNeighbours(ss, effectedF, numEffectedF,
&effectedV, &numEffectedV, &effectedE, &numEffectedE);
for (curLvl = lvl; curLvl < subdivLevels; curLvl++) {
ccgSubSurf__calcSubdivLevel(ss,
effectedV, effectedE, effectedF,
numEffectedV, numEffectedE, numEffectedF, curLvl);
}
for (i = 0; i < numEffectedV; i++)
effectedV[i]->flags = 0;
for (i = 0; i < numEffectedE; i++)
effectedE[i]->flags = 0;
for (i = 0; i < numEffectedF; i++)
effectedF[i]->flags = 0;
MEM_freeN(effectedE);
MEM_freeN(effectedV);
if (freeF) MEM_freeN(effectedF);
return eCCGError_None;
}