Support basic linked elements

2023-06-12 21:47:56 +02:00
parent fd9e352355
commit 04fa09e7e7
8 changed files with 97 additions and 12 deletions
--- a/include/PSX/GPU/Primitives/linked_elements.hpp
+++ b/include/PSX/GPU/Primitives/linked_elements.hpp
@@ -0,0 +1,56 @@
+#ifndef __JABYENGINE_LINKED_ELEMENTS_HPP__
+#define __JABYENGINE_LINKED_ELEMENTS_HPP__
+#include "../../Auxiliary/bits.hpp"
+
+namespace JabyEngine {
+    namespace GPU {
+        struct Link {
+            static constexpr auto AdrRange  = BitRange::from_to(0, 23);
+            static constexpr auto SizeRange = BitRange::from_to(24, 31);
+            
+            static constexpr uint32_t TerminationValue = 0x00FFFFFF;
+
+            uint32_t value = TerminationValue;
+
+            constexpr Link() = default;
+            constexpr Link(size_t size) : value(SizeRange.as_value(size >> 2) | TerminationValue) {
+            }
+
+            //void add
+
+            constexpr void terminate() {
+                this->value |= TerminationValue;
+            }
+        };
+
+        template<typename T>
+        struct LinkedElement : public Link {
+            T element;
+
+            constexpr LinkedElement() : Link(sizeof(T)), element() {
+            }
+
+            constexpr LinkedElement(const T& element) : Link(sizeof(T)), element(element) {
+            }
+
+            constexpr const T* operator->() const {
+                return &this->element;
+            }
+
+            constexpr T* operator->() {
+                return &this->element;
+            }
+        };
+
+        namespace internal {
+            template<typename T>
+            struct LinkedElementCreator {
+                constexpr LinkedElement<T> linked() {
+                    return LinkedElement<T>(*static_cast<T*>(this));
+                }
+            };
+        }
+    }
+}
+
+#endif // !__JABYENGINE_LINKED_ELEMENTS_HPP__