From a2ec7dabd48a70ea69623406ddd0f8f97af403c8 Mon Sep 17 00:00:00 2001
From: hachem <im@hachem.wtf>
Date: Tue, 12 Aug 2025 18:12:37 +0200
Subject: [add]: Start of a basic rendering backend

---
 src/Platform/OpenGL/OpenGLShader.h | 47 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)
 create mode 100644 src/Platform/OpenGL/OpenGLShader.h

(limited to 'src/Platform/OpenGL/OpenGLShader.h')

diff --git a/src/Platform/OpenGL/OpenGLShader.h b/src/Platform/OpenGL/OpenGLShader.h
new file mode 100644
index 0000000..2ebde12
--- /dev/null
+++ b/src/Platform/OpenGL/OpenGLShader.h
@@ -0,0 +1,47 @@
+#pragma once
+
+#include "Rendering/Shader.h"
+#include <unordered_map>
+#include <glm/glm.hpp>
+
+namespace Donut 
+{
+    class OpenGLShader 
+        : public Shader 
+    {
+    public:
+        OpenGLShader(const std::string& filepath);
+        OpenGLShader(const std::string& name, const std::string& vertexSrc, const std::string& fragmentSrc);
+        virtual ~OpenGLShader();
+
+        virtual void Bind()   const override;
+        virtual void Unbind() const override;
+
+        virtual void SetInt(const std::string& name, int value) override;
+        virtual void SetIntArray(const std::string& name, int* values, uint32_t count) override;
+        virtual void SetFloat(const std::string& name, float value) override;
+        virtual void SetFloat3(const std::string& name, const glm::vec3& value) override;
+        virtual void SetFloat4(const std::string& name, const glm::vec4& value) override;
+        virtual void SetMat4(const std::string& name, const glm::mat4& value) override;
+
+        virtual const std::string& GetName() const override { return m_Name; }
+
+        void UploadUniformInt(const std::string& name, int value);
+        void UploadUniformIntArray(const std::string& name, int* values, uint32_t count);
+        void UploadUniformFloat(const std::string& name, float value);
+        void UploadUniformFloat2(const std::string& name, const glm::vec2& value);
+        void UploadUniformFloat3(const std::string& name, const glm::vec3& value);
+        void UploadUniformFloat4(const std::string& name, const glm::vec4& value);
+        void UploadUniformMat3(const std::string& name, const glm::mat3& matrix);
+        void UploadUniformMat4(const std::string& name, const glm::mat4& matrix);
+
+    private:
+        std::string ReadFile(const std::string& filepath);
+        std::unordered_map<uint32_t, std::string> PreProcess(const std::string& source);
+        void Compile(const std::unordered_map<uint32_t, std::string>& shaderSources);
+
+    private:
+        uint32_t m_RendererID;
+        std::string m_Name;
+    };
+};
-- 
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