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-rw-r--r--libdimension/dimension/interior.h3
-rw-r--r--libdimension/dimension/texture.h3
-rw-r--r--libdimension/interior.c17
-rw-r--r--libdimension/texture.c19
4 files changed, 31 insertions, 11 deletions
diff --git a/libdimension/dimension/interior.h b/libdimension/dimension/interior.h
index 0ab4a30..69a0fcb 100644
--- a/libdimension/dimension/interior.h
+++ b/libdimension/dimension/interior.h
@@ -34,6 +34,9 @@ typedef struct dmnsn_interior {
/* Generic pointer */
void *ptr;
+
+ /* Reference count */
+ unsigned int *refcount;
} dmnsn_interior;
dmnsn_interior *dmnsn_new_interior();
diff --git a/libdimension/dimension/texture.h b/libdimension/dimension/texture.h
index ce15742..9c5fae1 100644
--- a/libdimension/dimension/texture.h
+++ b/libdimension/dimension/texture.h
@@ -102,6 +102,9 @@ typedef struct {
/* Transformation matrix */
dmnsn_matrix trans, trans_inv;
+
+ /* Reference count */
+ unsigned int *refcount;
} dmnsn_texture;
dmnsn_texture *dmnsn_new_texture();
diff --git a/libdimension/interior.c b/libdimension/interior.c
index 9f9201d..0accb79 100644
--- a/libdimension/interior.c
+++ b/libdimension/interior.c
@@ -26,8 +26,10 @@ dmnsn_interior *
dmnsn_new_interior()
{
dmnsn_interior *interior = dmnsn_malloc(sizeof(dmnsn_interior));
- interior->ior = 1.0;
- interior->free_fn = NULL;
+ interior->ior = 1.0;
+ interior->free_fn = NULL;
+ interior->refcount = dmnsn_malloc(sizeof(unsigned int));
+ *interior->refcount = 1;
return interior;
}
@@ -36,9 +38,14 @@ void
dmnsn_delete_interior(dmnsn_interior *interior)
{
if (interior) {
- if (interior->free_fn) {
- (*interior->free_fn)(interior->ptr);
+ if (*interior->refcount <= 1) {
+ if (interior->free_fn) {
+ (*interior->free_fn)(interior->ptr);
+ }
+ free(interior->refcount);
+ free(interior);
+ } else {
+ --*interior->refcount;
}
- free(interior);
}
}
diff --git a/libdimension/texture.c b/libdimension/texture.c
index 218b7f6..93279bb 100644
--- a/libdimension/texture.c
+++ b/libdimension/texture.c
@@ -80,9 +80,11 @@ dmnsn_texture *
dmnsn_new_texture()
{
dmnsn_texture *texture = dmnsn_malloc(sizeof(dmnsn_texture));
- texture->pigment = NULL;
- texture->finish = NULL;
- texture->trans = dmnsn_identity_matrix();
+ texture->pigment = NULL;
+ texture->finish = NULL;
+ texture->trans = dmnsn_identity_matrix();
+ texture->refcount = dmnsn_malloc(sizeof(unsigned int));
+ *texture->refcount = 1;
return texture;
}
@@ -91,9 +93,14 @@ void
dmnsn_delete_texture(dmnsn_texture *texture)
{
if (texture) {
- dmnsn_delete_finish(texture->finish);
- dmnsn_delete_pigment(texture->pigment);
- free(texture);
+ if (*texture->refcount <= 1) {
+ dmnsn_delete_finish(texture->finish);
+ dmnsn_delete_pigment(texture->pigment);
+ free(texture->refcount);
+ free(texture);
+ } else {
+ --*texture->refcount;
+ }
}
}