/* note; only does current curvemap! */
void curvemapping_changed(CurveMapping *cumap, int rem_doubles)
{
CurveMap *cuma= cumap->cm+cumap->cur;
CurveMapPoint *cmp= cuma->curve;
rctf *clipr= &cumap->clipr;
float thresh= 0.01f*(clipr->xmax - clipr->xmin);
float dx= 0.0f, dy= 0.0f;
int a;
cumap->changed_timestamp++;
/* clamp with clip */
if(cumap->flag & CUMA_DO_CLIP) {
for(a=0; a<cuma->totpoint; a++) {
if(cmp[a].flag & CUMA_SELECT) {
if(cmp[a].x < clipr->xmin)
dx= MIN2(dx, cmp[a].x - clipr->xmin);
else if(cmp[a].x > clipr->xmax)
dx= MAX2(dx, cmp[a].x - clipr->xmax);
if(cmp[a].y < clipr->ymin)
dy= MIN2(dy, cmp[a].y - clipr->ymin);
else if(cmp[a].y > clipr->ymax)
dy= MAX2(dy, cmp[a].y - clipr->ymax);
}
}
for(a=0; a<cuma->totpoint; a++) {
if(cmp[a].flag & CUMA_SELECT) {
cmp[a].x -= dx;
cmp[a].y -= dy;
}
}
}
qsort(cmp, cuma->totpoint, sizeof(CurveMapPoint), sort_curvepoints);
/* remove doubles, threshold set on 1% of default range */
if(rem_doubles && cuma->totpoint>2) {
for(a=0; a<cuma->totpoint-1; a++) {
dx= cmp[a].x - cmp[a+1].x;
dy= cmp[a].y - cmp[a+1].y;
if( sqrtf(dx*dx + dy*dy) < thresh ) {
if(a==0) {
cmp[a+1].flag|= 2;
if(cmp[a+1].flag & CUMA_SELECT)
cmp[a].flag |= CUMA_SELECT;
}
else {
cmp[a].flag|= 2;
if(cmp[a].flag & CUMA_SELECT)
cmp[a+1].flag |= CUMA_SELECT;
}
break; /* we assume 1 deletion per edit is ok */
}
}
if(a != cuma->totpoint-1)
curvemap_remove(cuma, 2);
}
curvemap_make_table(cuma, clipr);
}
void curvemapping_initialize(CurveMapping *cumap)
{
int a;
if (cumap == NULL) return;
for (a = 0; a < CM_TOT; a++) {
if (cumap->cm[a].table == NULL)
curvemap_make_table(cumap->cm + a, &cumap->clipr);
}
}
/* it uses a flag to prevent premul or free to happen twice */
void curvemapping_premultiply(CurveMapping *cumap, int restore)
{
int a;
if (restore) {
if (cumap->flag & CUMA_PREMULLED) {
for (a = 0; a < 3; a++) {
MEM_freeN(cumap->cm[a].table);
cumap->cm[a].table = cumap->cm[a].premultable;
cumap->cm[a].premultable = NULL;
}
cumap->flag &= ~CUMA_PREMULLED;
}
}
else {
if ((cumap->flag & CUMA_PREMULLED) == 0) {
/* verify and copy */
for (a = 0; a < 3; a++) {
if (cumap->cm[a].table == NULL)
curvemap_make_table(cumap->cm + a, &cumap->clipr);
cumap->cm[a].premultable = cumap->cm[a].table;
cumap->cm[a].table = MEM_mallocN((CM_TABLE + 1) * sizeof(CurveMapPoint), "premul table");
memcpy(cumap->cm[a].table, cumap->cm[a].premultable, (CM_TABLE + 1) * sizeof(CurveMapPoint));
}
if (cumap->cm[3].table == NULL)
curvemap_make_table(cumap->cm + 3, &cumap->clipr);
/* premul */
for (a = 0; a < 3; a++) {
int b;
for (b = 0; b <= CM_TABLE; b++) {
cumap->cm[a].table[b].y = curvemap_evaluateF(cumap->cm + 3, cumap->cm[a].table[b].y);
}
}
cumap->flag |= CUMA_PREMULLED;
}
}
}
/* works with curve 'cur' */
float curvemapping_evaluateF(CurveMapping *cumap, int cur, float value)
{
CurveMap *cuma = cumap->cm + cur;
/* allocate or bail out */
if (cuma->table == NULL) {
curvemap_make_table(cuma, &cumap->clipr);
if (cuma->table == NULL)
return 1.0f - value;
}
return curvemap_evaluateF(cuma, value);
}
/* note; only does current curvemap! */
void curvemapping_changed(CurveMapping *cumap, const bool rem_doubles)
{
CurveMap *cuma = cumap->cm + cumap->cur;
CurveMapPoint *cmp = cuma->curve;
rctf *clipr = &cumap->clipr;
float thresh = 0.01f * BLI_rctf_size_x(clipr);
float dx = 0.0f, dy = 0.0f;
int a;
cumap->changed_timestamp++;
/* clamp with clip */
if (cumap->flag & CUMA_DO_CLIP) {
for (a = 0; a < cuma->totpoint; a++) {
if (cmp[a].flag & CUMA_SELECT) {
if (cmp[a].x < clipr->xmin)
dx = min_ff(dx, cmp[a].x - clipr->xmin);
else if (cmp[a].x > clipr->xmax)
dx = max_ff(dx, cmp[a].x - clipr->xmax);
if (cmp[a].y < clipr->ymin)
dy = min_ff(dy, cmp[a].y - clipr->ymin);
else if (cmp[a].y > clipr->ymax)
dy = max_ff(dy, cmp[a].y - clipr->ymax);
}
}
for (a = 0; a < cuma->totpoint; a++) {
if (cmp[a].flag & CUMA_SELECT) {
cmp[a].x -= dx;
cmp[a].y -= dy;
}
}
/* ensure zoom-level respects clipping */
if (BLI_rctf_size_x(&cumap->curr) > BLI_rctf_size_x(&cumap->clipr)) {
cumap->curr.xmin = cumap->clipr.xmin;
cumap->curr.xmax = cumap->clipr.xmax;
}
if (BLI_rctf_size_y(&cumap->curr) > BLI_rctf_size_y(&cumap->clipr)) {
cumap->curr.ymin = cumap->clipr.ymin;
cumap->curr.ymax = cumap->clipr.ymax;
}
}
qsort(cmp, cuma->totpoint, sizeof(CurveMapPoint), sort_curvepoints);
/* remove doubles, threshold set on 1% of default range */
if (rem_doubles && cuma->totpoint > 2) {
for (a = 0; a < cuma->totpoint - 1; a++) {
dx = cmp[a].x - cmp[a + 1].x;
dy = cmp[a].y - cmp[a + 1].y;
if (sqrtf(dx * dx + dy * dy) < thresh) {
if (a == 0) {
cmp[a + 1].flag |= CUMA_HANDLE_VECTOR;
if (cmp[a + 1].flag & CUMA_SELECT)
cmp[a].flag |= CUMA_SELECT;
}
else {
cmp[a].flag |= CUMA_HANDLE_VECTOR;
if (cmp[a].flag & CUMA_SELECT)
cmp[a + 1].flag |= CUMA_SELECT;
}
break; /* we assume 1 deletion per edit is ok */
}
}
if (a != cuma->totpoint - 1)
curvemap_remove(cuma, 2);
}
curvemap_make_table(cuma, clipr);
}