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authorDan Goodliffe <dan@randomdan.homeip.net>2021-01-24 13:16:05 +0000
committerDan Goodliffe <dan@randomdan.homeip.net>2021-01-24 13:16:05 +0000
commit12d38a0114657cc468e93f7eb0f97b2b1ac8f924 (patch)
tree7aec12c6469db3a46811ef6c49800b33a029292e /utility
parentAllow physical objects to share meshes and textures (diff)
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Big tidy up of shader wrapper
Diffstat (limited to 'utility')
-rw-r--r--utility/glRef.hpp56
1 files changed, 56 insertions, 0 deletions
diff --git a/utility/glRef.hpp b/utility/glRef.hpp
new file mode 100644
index 0000000..aae6629
--- /dev/null
+++ b/utility/glRef.hpp
@@ -0,0 +1,56 @@
+#ifndef GLREF_H
+#define GLREF_H
+
+#include <special_members.hpp>
+#include <stdexcept>
+
+template<typename IdType, auto & get, auto & release, auto... fixed> class glRef {
+public:
+ template<typename... Args> explicit glRef(Args &&... args) : id {get(fixed..., std::forward<Args>(args)...)}
+ {
+ if (!id) {
+ throw std::runtime_error("Get function failed");
+ }
+ };
+
+ glRef(glRef && other) : id {other.id}
+ {
+ other.id = {};
+ }
+
+ ~glRef()
+ {
+ if (id) {
+ release(id);
+ }
+ }
+
+ NO_COPY(glRef);
+
+ const auto &
+ operator=(glRef && other)
+ {
+ if (id) {
+ release(id);
+ }
+ id = other.id;
+ other.id = {};
+ return *this;
+ }
+
+ auto
+ operator*() const
+ {
+ return id;
+ }
+
+ operator IdType() const
+ {
+ return id;
+ }
+
+private:
+ IdType id;
+};
+
+#endif