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[#23709] Blur node on Flat blurs even at 0 by 0 pixel spread

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skip blur x/y when either is set to zero.
This commit is contained in:
Campbell Barton
2010-10-11 20:53:20 +00:00
parent 9fa74e5c59
commit b0b7354d5c
1 changed files with 87 additions and 77 deletions
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source/blender/nodes/intern/CMP_nodes/CMP_blur.c
+87 -77
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@@ -93,105 +93,115 @@ static void blur_single_image(bNode *node, CompBuf *new, CompBuf *img, float sca
int x, y, pix= img->type;
int i, bigstep;
float *src, *dest;
/* helper image */
work= alloc_compbuf(imgx, imgy, img->type, 1); /* allocs */
/* horizontal */
rad = scale*(float)nbd->sizex;
if(rad>imgx/2)
rad= imgx/2;
else if(rad<1)
rad= 1;
gausstab= make_gausstab(nbd->filtertype, rad);
gausstabcent= gausstab+rad;
for (y = 0; y < imgy; y++) {
float *srcd= img->rect + pix*(y*img->x);
if(nbd->sizex == 0) {
memcpy(work->rect, img->rect, sizeof(float) * img->type * imgx * imgy);
}
else {
rad = scale*(float)nbd->sizex;
if(rad>imgx/2)
rad= imgx/2;
else if(rad<1)
rad= 1;
dest = work->rect + pix*(y * img->x);
gausstab= make_gausstab(nbd->filtertype, rad);
gausstabcent= gausstab+rad;
for (x = 0; x < imgx ; x++) {
int minr= x-rad<0?-x:-rad;
int maxr= x+rad>imgx?imgx-x:rad;
for (y = 0; y < imgy; y++) {
float *srcd= img->rect + pix*(y*img->x);
src= srcd + pix*(x+minr);
dest = work->rect + pix*(y * img->x);
sum= gval = rval= bval= aval= 0.0f;
for (i= minr; i < maxr; i++) {
val= gausstabcent[i];
sum+= val;
rval += val * (*src++);
for (x = 0; x < imgx ; x++) {
int minr= x-rad<0?-x:-rad;
int maxr= x+rad>imgx?imgx-x:rad;
src= srcd + pix*(x+minr);
sum= gval = rval= bval= aval= 0.0f;
for (i= minr; i < maxr; i++) {
val= gausstabcent[i];
sum+= val;
rval += val * (*src++);
if(pix==4) {
gval += val * (*src++);
bval += val * (*src++);
aval += val * (*src++);
}
}
sum= 1.0f/sum;
*dest++ = rval*sum;
if(pix==4) {
gval += val * (*src++);
bval += val * (*src++);
aval += val * (*src++);
*dest++ = gval*sum;
*dest++ = bval*sum;
*dest++ = aval*sum;
}
}
sum= 1.0f/sum;
*dest++ = rval*sum;
if(pix==4) {
*dest++ = gval*sum;
*dest++ = bval*sum;
*dest++ = aval*sum;
}
if(node->exec & NODE_BREAK)
break;
}
if(node->exec & NODE_BREAK)
break;
/* vertical */
MEM_freeN(gausstab);
}
/* vertical */
MEM_freeN(gausstab);
if(nbd->sizey == 0) {
memcpy(new->rect, work->rect, sizeof(float) * img->type * imgx * imgy);
}
else {
rad = scale*(float)nbd->sizey;
if(rad>imgy/2)
rad= imgy/2;
else if(rad<1)
rad= 1;
rad = scale*(float)nbd->sizey;
if(rad>imgy/2)
rad= imgy/2;
else if(rad<1)
rad= 1;
gausstab= make_gausstab(nbd->filtertype, rad);
gausstabcent= gausstab+rad;
bigstep = pix*imgx;
for (x = 0; x < imgx; x++) {
float *srcd= work->rect + pix*x;
gausstab= make_gausstab(nbd->filtertype, rad);
gausstabcent= gausstab+rad;
dest = new->rect + pix*x;
for (y = 0; y < imgy ; y++) {
int minr= y-rad<0?-y:-rad;
int maxr= y+rad>imgy?imgy-y:rad;
bigstep = pix*imgx;
for (x = 0; x < imgx; x++) {
float *srcd= work->rect + pix*x;
src= srcd + bigstep*(y+minr);
dest = new->rect + pix*x;
sum= gval = rval= bval= aval= 0.0f;
for (i= minr; i < maxr; i++) {
val= gausstabcent[i];
sum+= val;
rval += val * src[0];
if(pix==4) {
gval += val * src[1];
bval += val * src[2];
aval += val * src[3];
for (y = 0; y < imgy ; y++) {
int minr= y-rad<0?-y:-rad;
int maxr= y+rad>imgy?imgy-y:rad;
src= srcd + bigstep*(y+minr);
sum= gval = rval= bval= aval= 0.0f;
for (i= minr; i < maxr; i++) {
val= gausstabcent[i];
sum+= val;
rval += val * src[0];
if(pix==4) {
gval += val * src[1];
bval += val * src[2];
aval += val * src[3];
}
src += bigstep;
}
src += bigstep;
sum= 1.0f/sum;
dest[0] = rval*sum;
if(pix==4) {
dest[1] = gval*sum;
dest[2] = bval*sum;
dest[3] = aval*sum;
}
dest+= bigstep;
}
sum= 1.0f/sum;
dest[0] = rval*sum;
if(pix==4) {
dest[1] = gval*sum;
dest[2] = bval*sum;
dest[3] = aval*sum;
}
dest+= bigstep;
if(node->exec & NODE_BREAK)
break;
}
if(node->exec & NODE_BREAK)
break;
MEM_freeN(gausstab);
}
free_compbuf(work);
MEM_freeN(gausstab);
}
/* reference has to be mapped 0-1, and equal in size */