From fbd2e5d9a802db4fb5e056705ec599ac423e09be Mon Sep 17 00:00:00 2001
From: dec05eba <dec05eba@protonmail.com>
Date: Sun, 27 Oct 2019 01:30:34 +0200
Subject: Create Shader class as a base for vertex and pixel shader

---
 include/RenderBackend/OpenGL/PixelShader.hpp | 74 +++-------------------------
 1 file changed, 6 insertions(+), 68 deletions(-)

(limited to 'include/RenderBackend/OpenGL/PixelShader.hpp')

diff --git a/include/RenderBackend/OpenGL/PixelShader.hpp b/include/RenderBackend/OpenGL/PixelShader.hpp
index 6794fb1..ebe5a12 100644
--- a/include/RenderBackend/OpenGL/PixelShader.hpp
+++ b/include/RenderBackend/OpenGL/PixelShader.hpp
@@ -1,82 +1,20 @@
 #pragma once
 
-#include "../../DataView.hpp"
-#include "../../utils.hpp"
-#include "../../Result.hpp"
-#include "CommonShader.hpp"
-#include "ShaderVec.hpp"
-#include <string>
-#include <unordered_map>
-#include <vector>
-#include <stdexcept>
-#include <functional>
+#include "Shader.hpp"
 
-namespace amalgine
-{
-    class PixelShaderTooManyAttributes : public std::runtime_error
-    {
-    public:
-        PixelShaderTooManyAttributes(i32 maxPixelAttributes);
-    };
-    
-    class PixelShaderAttributeAlreadyDefined : public std::runtime_error
-    {
-    public:
-        PixelShaderAttributeAlreadyDefined(const std::string &attributeName);
-    };
-    
-    class PixelShaderInvalidAttributeName : public std::runtime_error
-    {
-    public:
-        PixelShaderInvalidAttributeName(const std::string &attributeName);
-    };
-    
-    class PixelShaderFunctionAlreadyDefined : public std::runtime_error
-    {
-    public:
-        PixelShaderFunctionAlreadyDefined(const std::string &funcName);
-    };
-    
-    using PixelShaderMainFunc = std::function<void()>;
-    
-    /*
-     * Using the same PixelShader instance in multiple threads to define data is not thread safe.
-     * All get*** functions are thread safe.
-     */
+namespace amalgine {
     class CompiledPixelShader;
+
+    using PixelShaderMainFunc = std::function<void()>;
     
-    class PixelShader
+    class PixelShader : public Shader
     {
         DISABLE_COPY(PixelShader)
         friend class ShaderProgram;
     public:
         PixelShader();
-        
-        const std::string& getOutputAttributeName(i32 attributeIndex);
-        ShaderOutputVec4 defineOutputVec4(const std::string &name);
-        ShaderGlobalVec3 defineGlobalVec3(const std::string &name);
-        
+
         void defineMain(PixelShaderMainFunc mainFunc);
-        void assign(const ShaderOutputVec4 &lhsVariable, const ShaderVec4 &rhsVariable);
         Result<CompiledPixelShader*> compile();
-    private:
-        void writeHeader(const std::string &code);
-        void writeBody(const std::string &code);
-        std::string build() const;
-        
-        /*
-         * 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:
-        std::string header;
-        std::string body;
-        int locationCounter;
-        i32 maxPixelAttribs; // Could make this static
-        std::unordered_map<std::string, i32> pixelAttributes;
-        std::vector<ShaderAttribute> pixelAttributeNames;
-        std::unordered_map<std::string, ShaderGlobalVec> globalAttributes;
-        bool mainFuncDefined;
     };
 }
-- 
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