- use FShaderProgram through an abstract interface and remove all dependencies on the GL renderer from the shader definition source files.

src/hwrenderer/postprocessing/hw_shaderprogram.h

@@ -0,0 +1,31 @@
+
+#pragma once
+
+#include "hwrenderer/data/shaderuniforms.h"
+
+class IRenderQueue;
+
+class IShaderProgram
+{
+public:
+	IShaderProgram() {}
+	virtual ~IShaderProgram() {}
+
+	enum ShaderType
+	{
+		Vertex,
+		Fragment,
+		NumShaderTypes
+	};
+
+	virtual void Compile(ShaderType type, const char *lumpName, const char *defines, int maxGlslVersion) = 0;
+	virtual void Compile(ShaderType type, const char *name, const FString &code, const char *defines, int maxGlslVersion) = 0;
+	virtual void Link(const char *name) = 0;
+	virtual void SetUniformBufferLocation(int index, const char *name) = 0;
+
+	virtual void Bind(IRenderQueue *q) = 0;	// the parameter here is just a preparation for Vulkan
+
+private:
+	IShaderProgram(const IShaderProgram &) = delete;
+	IShaderProgram &operator=(const IShaderProgram &) = delete;
+};