[chore]: MASSIVE refactor + more vulkan bs

1 files changed, 73 insertions, 0 deletions

diff --git a/src/rendering/vertex_buffer.h b/src/rendering/vertex_buffer.h
new file mode 100644
index 0000000..6be7e34
--- /dev/null
+++ b/src/rendering/vertex_buffer.h
@@ -0,0 +1,73 @@
+#pragma once
+
+#include <cstdint>
+#include <vector>
+
+namespace Donut 
+{
+    struct VertexBufferElement 
+    {
+        uint32_t type;
+        uint32_t count;
+        uint8_t normalized;
+        uint32_t offset;
+
+        static auto get_size_of_type(uint32_t type) -> uint32_t;
+    };
+
+    class VertexBufferLayout
+    {
+    public:
+        VertexBufferLayout() = default;
+        ~VertexBufferLayout() = default;
+
+        template<typename T>
+        auto push(uint32_t count) -> void 
+        {
+            static_assert(false);
+        }
+
+        template<>
+        void push<float>(uint32_t count) 
+        {
+            m_elements.push_back({ 0x1406, count, 0, m_stride }); // GL_FLOAT
+            m_stride += count * VertexBufferElement::get_size_of_type(0x1406);
+        }
+
+        template<>
+        void push<uint32_t>(uint32_t count) 
+        {
+            m_elements.push_back({ 0x1405, count, 0, m_stride }); // GL_UNSIGNED_INT
+            m_stride += count * VertexBufferElement::get_size_of_type(0x1405);
+        }
+
+        template<>
+        void push<uint8_t>(uint32_t count) 
+        {
+            m_elements.push_back({ 0x1401, count, 1, m_stride }); // GL_UNSIGNED_BYTE
+            m_stride += count * VertexBufferElement::get_size_of_type(0x1401);
+        }
+
+        inline auto get_elements() const -> const std::vector<VertexBufferElement>& { return m_elements; }
+        inline auto get_stride() const -> uint32_t { return m_stride; }
+
+    private:
+        std::vector<VertexBufferElement> m_elements;
+        uint32_t m_stride = 0;
+    };
+
+    class VertexBuffer
+    {
+    public:
+        virtual ~VertexBuffer() = default;
+
+        virtual auto bind() const -> void = 0;
+        virtual auto unbind() const -> void = 0;
+        virtual auto set_data(const void* data, uint32_t size) -> void = 0;
+
+        virtual auto get_layout() const -> const VertexBufferLayout& = 0;
+        virtual auto set_layout(const VertexBufferLayout& layout) -> void = 0;
+
+        static auto create(const void* data, uint32_t size) -> VertexBuffer*;
+    };
+};