1 files changed, 58 insertions, 0 deletions
diff --git a/src/rendering/shader.h b/src/rendering/shader.h
new file mode 100644
index 0000000..bc3fd9a
--- /dev/null
+++ b/src/rendering/shader.h
@@ -0,0 +1,58 @@
+#pragma once
+
+#include "core/memory.h"
+
+#include <string>
+#include <unordered_map>
+#include <glm/glm.hpp>
+
+#define SHADER_STORAGE_BARRIER_BIT    0x00002000
+#define UNIFORM_BARRIER_BIT           0x00000004
+#define TEXTURE_FETCH_BARRIER_BIT     0x00000008
+#define IMAGE_ACCESS_BARRIER_BIT      0x00000020
+
+namespace Donut 
+{
+    class Shader
+    {
+    public:
+        virtual ~Shader() = default;
+
+        virtual auto bind() const -> void = 0;
+        virtual auto unbind() const -> void = 0;
+
+        virtual auto set_int(     const std::string& name, int value) -> void = 0;
+        virtual auto set_int_array(const std::string& name, int* values, uint32_t count) -> void = 0;
+        virtual auto set_float(   const std::string& name, float value) -> void = 0;
+        virtual auto set_float2(  const std::string& name, const glm::vec2& value) -> void = 0;
+        virtual auto set_float3(  const std::string& name, const glm::vec3& value) -> void = 0;
+        virtual auto set_float4(  const std::string& name, const glm::vec4& value) -> void = 0;
+        virtual auto set_mat4(    const std::string& name, const glm::mat4& value) -> void = 0;
+
+        virtual auto dispatch(uint32_t x, uint32_t y = 1, uint32_t z = 1) -> void = 0;
+        virtual auto dispatch_indirect(uint32_t offset = 0) -> void = 0;
+        virtual auto memory_barrier(uint32_t barriers) -> void = 0;
+
+        virtual auto get_name() const -> const std::string& = 0;
+        virtual auto get_renderer_id() const -> uint32_t = 0;
+
+        static auto create(const std::string& filepath) -> Shader*;
+        static auto create(const std::string& name, const std::string& vertex_src, const std::string& fragment_src) -> Shader*;
+        static auto create_compute(const std::string& name, const std::string& compute_src) -> Shader*;
+    };
+
+    class ShaderLibrary
+    {
+    public:
+        auto add(const Ref<Shader>& shader) -> void;
+        auto add(const std::string& name, const Ref<Shader>& shader) -> void;
+        auto load(const std::string& filepath) -> Ref<Shader>;
+        auto load(const std::string& name, const std::string& filepath) -> Ref<Shader>;
+
+        Ref<Shader> Get(const std::string& name);
+
+        auto exists(const std::string& name) const -> bool;
+    private:
+        std::unordered_map<std::string, Ref<Shader>> m_shaders;
+    };
+};