feat: start of a basic rendering backend

1 files changed, 46 insertions, 0 deletions

diff --git a/src/rendering/shader.h b/src/rendering/shader.h
new file mode 100644
index 0000000..d9128f6
--- /dev/null
+++ b/src/rendering/shader.h
@@ -0,0 +1,46 @@
+#pragma once
+
+#include <string>
+#include <unordered_map>
+#include <memory>
+#include <glm/glm.hpp>
+
+namespace Donut 
+{
+    class Shader
+    {
+    public:
+        virtual ~Shader() = default;
+
+        virtual void bind() const = 0;
+        virtual void unbind() const = 0;
+
+        virtual void set_int(const std::string& name, int value) = 0;
+        virtual void set_int_array(const std::string& name, int* values, uint32_t count) = 0;
+        virtual void set_float(const std::string& name, float value) = 0;
+        virtual void set_float3(const std::string& name, const glm::vec3& value) = 0;
+        virtual void set_float4(const std::string& name, const glm::vec4& value) = 0;
+        virtual void set_mat4(const std::string& name, const glm::mat4& value) = 0;
+
+        virtual const std::string& get_name() const = 0;
+
+        static Shader* create(const std::string& filepath);
+        static Shader* create(const std::string& name, const std::string& vertex_src, const std::string& fragment_src);
+    };
+
+    class ShaderLibrary
+    {
+    public:
+        void add(const std::shared_ptr<Shader>& shader);
+        void add(const std::string& name, const std::shared_ptr<Shader>& shader);
+        std::shared_ptr<Shader> load(const std::string& filepath);
+        std::shared_ptr<Shader> load(const std::string& name, const std::string& filepath);
+
+        std::shared_ptr<Shader> get(const std::string& name);
+
+        bool exists(const std::string& name) const;
+
+    private:
+        std::unordered_map<std::string, std::shared_ptr<Shader>> m_shaders;
+    };
+};