void VolumeTexture::setGridData(const VolumetricData *voldata) {
if (v == voldata) return;
v = voldata;
if (texmap) {
vmd_dealloc(texmap);
texmap = NULL;
}
size[0] = size[1] = size[2] = 0;
texid = 0;
}
// add the given Displayable as a child (assuming it is one)
void Displayable::add_child(Displayable *d) {
// append child to list of children
children[num_children++] = d;
if (num_children == max_children) {
void *tmp = vmd_alloc(max_children*2*sizeof(Displayable*));
memcpy(tmp,children,max_children*sizeof(Displayable*));
vmd_dealloc(children);
children = (Displayable **)tmp;
max_children *= 2;
}
}
int VolumeTexture::allocateTextureMap(int npixels) {
texid = 0;
if (texmap) {
vmd_dealloc(texmap);
texmap = NULL;
}
texmap = (unsigned char *) vmd_alloc(npixels*3*sizeof(unsigned char));
if (texmap == NULL) {
msgErr << "Texture map allocation failed, out of memory?" << sendmsg;
return FALSE;
}
memset(texmap, 0, npixels*3*sizeof(unsigned char));
texid = VMDApp::get_texserialnum();
return TRUE;
}
// destructor; free up allocated space
Displayable::~Displayable(void) {
// delete all children still around; also unregistered them
while(num_children > 0)
// delete first child object, the child destructor then removes the
// child from this parent's list, until there are no more
delete child(0);
cmdList->reset_and_free(0); // free space allocated for disp storage
delete cmdList; // free the cmdList itself back to scene memory
// if this is a child, remove it from it's parent's list of children
if (parent)
parent->remove_child(this);
vmd_dealloc(children);
}
// function to resize allocations depending on whether or not the allocator
// provides a realloc() function or not.
void * vmd_resize_alloc(void *ptr, size_t oldsize, size_t newsize) {
void *newptr=NULL;
if (ptr == NULL) {
newptr = vmd_alloc(newsize);
return newptr;
}
if (vmd_realloc != NULL) {
newptr = vmd_realloc(ptr, newsize);
}
if (newptr == NULL) {
newptr = vmd_alloc(newsize);
if (newptr != NULL) {
memcpy(newptr, ptr, oldsize);
vmd_dealloc(ptr);
}
}
return newptr;
}
VolumeTexture::~VolumeTexture() {
if (texmap) vmd_dealloc(texmap);
}
void Displayable::operator delete(void *p, size_t) {
vmd_dealloc(p);
}