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WIP: Admesh - replacement of C memory allocation with std vectors

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This commit is contained in:
bubnikv 2019-06-04 22:06:42 +02:00
parent 3ab886b747
commit 8da54139c4
17 changed files with 450 additions and 585 deletions
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104
src/admesh/stlinit.cpp
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@ -35,22 +35,38 @@
#error "SEEK_SET not defined"
#endif
void
stl_open(stl_file *stl, const char *file) {
stl_initialize(stl);
stl_count_facets(stl, file);
stl_allocate(stl);
stl_read(stl, 0, true);
if (stl->fp != nullptr) {
fclose(stl->fp);
stl->fp = nullptr;
}
void stl_open(stl_file *stl, const char *file)
{
stl_initialize(stl);
stl_count_facets(stl, file);
stl_allocate(stl);
stl_read(stl, 0, true);
if (stl->fp != nullptr) {
fclose(stl->fp);
stl->fp = nullptr;
}
}
void
stl_initialize(stl_file *stl) {
memset(stl, 0, sizeof(stl_file));
stl->stats.volume = -1.0;
void stl_initialize(stl_file *stl)
{
stl->fp = nullptr;
stl->tail = nullptr;
stl->M = 0;
stl->error = 0;
stl->facet_start.clear();
stl->neighbors_start.clear();
stl->v_indices.clear();
stl->v_shared.clear();
memset(&stl->stats, 0, sizeof(stl_stats));
stl->stats.volume = -1.0;
}
void stl_close(stl_file *stl)
{
assert(stl->fp == nullptr);
assert(stl->heads.empty());
assert(stl->tail == nullptr);
stl_initialize(stl);
}
#ifndef BOOST_LITTLE_ENDIAN
@ -175,20 +191,14 @@ stl_count_facets(stl_file *stl, const char *file) {
stl->stats.original_num_facets = stl->stats.number_of_facets;
}
void
stl_allocate(stl_file *stl) {
if (stl->error) return;
/* Allocate memory for the entire .STL file */
stl->facet_start = (stl_facet*)calloc(stl->stats.number_of_facets,
sizeof(stl_facet));
if(stl->facet_start == NULL) perror("stl_initialize");
stl->stats.facets_malloced = stl->stats.number_of_facets;
/* Allocate memory for the neighbors list */
stl->neighbors_start = (stl_neighbors*)
calloc(stl->stats.number_of_facets, sizeof(stl_neighbors));
if(stl->facet_start == NULL) perror("stl_initialize");
void stl_allocate(stl_file *stl)
{
if (stl->error)
return;
// Allocate memory for the entire .STL file.
stl->facet_start.assign(stl->stats.number_of_facets, stl_facet());
// Allocate memory for the neighbors list.
stl->neighbors_start.assign(stl->stats.number_of_facets, stl_neighbors());
}
void
@ -237,23 +247,14 @@ stl_open_merge(stl_file *stl, char *file_to_merge) {
stl->fp=origFp;
}
extern void
stl_reallocate(stl_file *stl) {
if (stl->error) return;
/* Reallocate more memory for the .STL file(s) */
stl->facet_start = (stl_facet*)realloc(stl->facet_start, stl->stats.number_of_facets *
sizeof(stl_facet));
if(stl->facet_start == NULL) perror("stl_initialize");
stl->stats.facets_malloced = stl->stats.number_of_facets;
/* Reallocate more memory for the neighbors list */
stl->neighbors_start = (stl_neighbors*)
realloc(stl->neighbors_start, stl->stats.number_of_facets *
sizeof(stl_neighbors));
if(stl->facet_start == NULL) perror("stl_initialize");
void stl_reallocate(stl_file *stl)
{
if (stl->error)
return;
stl->facet_start.resize(stl->stats.number_of_facets);
stl->neighbors_start.resize(stl->stats.number_of_facets);
}
/* Reads the contents of the file pointed to by stl->fp into the stl structure,
starting at facet first_facet. The second argument says if it's our first
time running this for the stl and therefore we should reset our max and min stats. */
@ -366,20 +367,3 @@ void stl_facet_stats(stl_file *stl, stl_facet facet, bool &first)
stl->stats.max = stl->stats.max.cwiseMax(facet.vertex[i]);
}
}
void stl_close(stl_file *stl)
{
assert(stl->fp == nullptr);
assert(stl->heads == nullptr);
assert(stl->tail == nullptr);
if (stl->facet_start != NULL)
free(stl->facet_start);
if (stl->neighbors_start != NULL)
free(stl->neighbors_start);
if (stl->v_indices != NULL)
free(stl->v_indices);
if (stl->v_shared != NULL)
free(stl->v_shared);
memset(stl, 0, sizeof(stl_file));
}