1 files changed, 34 insertions, 0 deletions
diff --git a/include/RenderBackend/OpenGL/ShaderProgram.hpp b/include/RenderBackend/OpenGL/ShaderProgram.hpp
new file mode 100644
index 0000000..efeae5b
--- /dev/null
+++ b/include/RenderBackend/OpenGL/ShaderProgram.hpp
@@ -0,0 +1,34 @@
+#pragma once
+
+#include "VertexShader.hpp"
+#include "PixelShader.hpp"
+#include "../../Result.hpp"
+#include "../../types.hpp"
+#include <vector>
+
+namespace amalgine
+{
+    class ShaderProgram
+    {
+    public:
+        ShaderProgram();
+        
+        const std::string& getOutputAttributeName(i32 attributeIndex);
+        ShaderOutputVec4 defineOutputVec4(const std::string &name);
+        //Result<std::string> addVertexShader(const VertexShader &vertexShader);
+        //Result<std::string> addPixelShader(const PixelShader &pixelShader);
+        //void build();
+    private:
+        /*
+         * Throws PixelShaderTooManyAttributes if too many pixel attributes are defined for the platform.
+         * Throws PixelShaderAttributeAlreadyDefined if a pixel attribute with the same name has already been defined.
+         */
+        i32 defineOutputVariable(const std::string &variableName, const char *typeName);
+    private:
+        int locationCounter;
+        i32 maxPixelAttribs; // Could make this static
+        std::unordered_map<std::string, i32> pixelAttributes;
+        std::vector<std::string> pixelAttributeNames;
+        std::vector<u32> shaderIds;
+    };
+}