Fix T84512: Crash if size input of Blur node is too large

Gaussian filter with a too large kernel doesn't make much sense.
This commit caps the Gaussian function radius to MAX_GAUSSTAB_RADIUS.

Reviewed By: sergey

Maniphest Tasks: T84512

Differential Revision: https://developer.blender.org/D10122

source/blender/compositor/operations/COM_GaussianAlphaXBlurOperation.cpp

@@ -68,6 +68,7 @@ void GaussianAlphaXBlurOperation::updateGauss()
   if (this->m_distbuf_inv == nullptr) {
     updateSize();
     float rad = max_ff(m_size * m_data.sizex, 0.0f);
+    rad = min_ff(rad, MAX_GAUSSTAB_RADIUS);
     m_filtersize = min_ii(ceil(rad), MAX_GAUSSTAB_RADIUS);
 
     m_distbuf_inv = BlurBaseOperation::make_dist_fac_inverse(rad, m_filtersize, m_falloff);

source/blender/compositor/operations/COM_GaussianAlphaYBlurOperation.cpp

@@ -60,6 +60,7 @@ void GaussianAlphaYBlurOperation::updateGauss()
   if (this->m_gausstab == nullptr) {
     updateSize();
     float rad = max_ff(m_size * m_data.sizey, 0.0f);
+    rad = min_ff(rad, MAX_GAUSSTAB_RADIUS);
     m_filtersize = min_ii(ceil(rad), MAX_GAUSSTAB_RADIUS);
 
     m_gausstab = BlurBaseOperation::make_gausstab(rad, m_filtersize);

source/blender/compositor/operations/COM_GaussianXBlurOperation.cpp

@@ -66,6 +66,7 @@ void GaussianXBlurOperation::updateGauss()
   if (this->m_gausstab == nullptr) {
     updateSize();
     float rad = max_ff(m_size * m_data.sizex, 0.0f);
+    rad = min_ff(rad, MAX_GAUSSTAB_RADIUS);
     m_filtersize = min_ii(ceil(rad), MAX_GAUSSTAB_RADIUS);
 
     this->m_gausstab = BlurBaseOperation::make_gausstab(rad, m_filtersize);

source/blender/compositor/operations/COM_GaussianYBlurOperation.cpp

@@ -65,6 +65,7 @@ void GaussianYBlurOperation::updateGauss()
   if (this->m_gausstab == nullptr) {
     updateSize();
     float rad = max_ff(m_size * m_data.sizey, 0.0f);
+    rad = min_ff(rad, MAX_GAUSSTAB_RADIUS);
     m_filtersize = min_ii(ceil(rad), MAX_GAUSSTAB_RADIUS);
 
     this->m_gausstab = BlurBaseOperation::make_gausstab(rad, m_filtersize);