[add]: Start of a basic rendering backend

1 files changed, 66 insertions, 0 deletions

diff --git a/src/Rendering/Shader.cpp b/src/Rendering/Shader.cpp
new file mode 100644
index 0000000..b055fe4
--- /dev/null
+++ b/src/Rendering/Shader.cpp
@@ -0,0 +1,66 @@
+#include "Shader.h"
+#include "Renderer.h"
+#include "Platform/OpenGL/OpenGLShader.h"
+#include <memory>
+
+namespace Donut
+{
+    Shader* Shader::Create(const std::string& filepath) 
+    {
+        switch (Renderer::GetAPI())
+        {
+            case RendererAPI::API::OpenGL:
+                return new OpenGLShader(filepath);
+            default:
+                return nullptr;
+        }
+    }
+
+    Shader* Shader::Create(const std::string& name, const std::string& vertexSrc, const std::string& fragmentSrc)
+    {
+        switch (Renderer::GetAPI()) 
+        {
+            case RendererAPI::API::OpenGL:
+                return new OpenGLShader(name, vertexSrc, fragmentSrc);
+            default:
+                return nullptr;
+        }
+    }
+
+    void ShaderLibrary::Add(const std::shared_ptr<Shader>& shader)
+    {
+        auto& name = shader->GetName();
+        Add(name, shader);
+    }
+
+    void ShaderLibrary::Add(const std::string& name, const std::shared_ptr<Shader>& shader)
+    {
+        m_Shaders[name] = shader;
+    }
+
+    std::shared_ptr<Shader> ShaderLibrary::Load(const std::string& filepath)
+    {
+        auto shader = std::shared_ptr<Shader>(Shader::Create(filepath));
+        Add(shader);
+        return shader;
+    }
+
+    std::shared_ptr<Shader> ShaderLibrary::Load(const std::string& name, const std::string& filepath)
+    {
+        auto shader = std::shared_ptr<Shader>(Shader::Create(filepath));
+        Add(name, shader);
+        return shader;
+    }
+
+    std::shared_ptr<Shader> ShaderLibrary::Get(const std::string& name)
+    {
+        if (Exists(name))
+            return m_Shaders[name];
+        return nullptr;
+    }
+
+    bool ShaderLibrary::Exists(const std::string& name) const
+    {
+        return m_Shaders.find(name) != m_Shaders.end();
+    }
+};