Minor refactoring

src/render/Renderer.h

@@ -0,0 +1,144 @@
+#pragma once
+
+#include "OpenGlExtensions.h"
+#include "utils/ZLMath.h"
+#include <exception>
+#include <stdexcept>
+#include "ShaderManager.h"
+
+namespace ZL {
+
+	constexpr size_t CONST_MATRIX_STACK_SIZE = 64;
+
+	class VBOHolder {
+		GLuint Buffer;
+
+	public:
+		VBOHolder();
+
+		VBOHolder(const VBOHolder& v) = delete;
+
+		VBOHolder& operator=(const VBOHolder& v) = delete;
+
+		~VBOHolder();
+
+		GLuint getBuffer();
+	};
+
+	class VAOHolder {
+		GLuint vao;
+
+	public:
+		VAOHolder();
+
+		VAOHolder(const VAOHolder& v) = delete;
+
+		VAOHolder& operator=(const VAOHolder& v) = delete;
+
+		~VAOHolder();
+
+		GLuint getBuffer();
+	};
+
+	struct VertexDataStruct
+	{
+		std::vector<Vector3f> PositionData;
+		std::vector<Vector2f> TexCoordData;
+		std::vector<Vector3f> NormalData;
+		std::vector<Vector3f> TangentData;
+		std::vector<Vector3f> BinormalData;
+		std::vector<Vector3f> ColorData;
+
+		void RotateByMatrix(Matrix3f m);
+
+		void Scale(float scale);
+		void Move(Vector3f diff);
+		void SwapZandY();
+	};
+
+	struct VertexRenderStruct
+	{
+		VertexDataStruct data;
+
+		std::shared_ptr<VAOHolder> vao;
+		std::shared_ptr<VBOHolder> positionVBO;
+		std::shared_ptr<VBOHolder> texCoordVBO;
+		std::shared_ptr<VBOHolder> normalVBO;
+		std::shared_ptr<VBOHolder> tangentVBO;
+		std::shared_ptr<VBOHolder> binormalVBO;
+		std::shared_ptr<VBOHolder> colorVBO;
+		void RefreshVBO();
+
+		void AssignFrom(const VertexDataStruct& v);
+	};
+
+	VertexDataStruct CreateRect2D(Vector2f center, Vector2f halfWidthHeight, float zLevel);
+	VertexDataStruct CreateRectHorizontalSections2D(Vector2f center, Vector2f halfWidthHeight, float zLevel, size_t sectionCount);
+	VertexDataStruct CreateCube3D(float scale);
+	VertexDataStruct CreateCubemap(float scale = 1000.f);
+
+
+	class Renderer
+	{
+	protected:
+		std::stack<Matrix4f> ProjectionMatrixStack;
+		std::stack<Matrix4f> ModelviewMatrixStack;
+
+		Matrix4f ProjectionModelViewMatrix;
+
+	public:
+
+		ShaderManager shaderManager;
+
+		void InitOpenGL();
+
+		void PushProjectionMatrix(float width, float height, float zNear = 0.f, float zFar = 1.f);
+		void PushProjectionMatrix(float xmin, float xmax, float ymin, float ymax, float zNear, float zFar);
+		void PushPerspectiveProjectionMatrix(float fovY, float aspectRatio, float zNear, float zFar);
+		void PopProjectionMatrix();
+
+		void PushMatrix();
+		void LoadIdentity();
+		void TranslateMatrix(const Vector3f& p);
+		void ScaleMatrix(float scale);
+		void ScaleMatrix(const Vector3f& scale);
+		void RotateMatrix(const Vector4f& q);
+		void RotateMatrix(const Matrix3f& m3);
+		void PushSpecialMatrix(const Matrix4f& m);
+		void PopMatrix();
+
+
+		Matrix4f GetProjectionModelViewMatrix();
+		Matrix4f GetCurrentModelViewMatrix();
+
+		void SetMatrix();
+
+
+
+		void EnableVertexAttribArray(const std::string& attribName);
+
+		void DisableVertexAttribArray(const std::string& attribName);
+
+
+		void RenderUniformMatrix3fv(const std::string& uniformName, bool transpose, const float* value);
+		void RenderUniformMatrix4fv(const std::string& uniformName, bool transpose, const float* value);
+		void RenderUniform1i(const std::string& uniformName, const int value);
+		void RenderUniform3fv(const std::string& uniformName, const float* value);
+		void RenderUniform1f(const std::string& uniformName, float value);
+
+		void VertexAttribPointer2fv(const std::string& attribName, int stride, const char* pointer);
+
+		void VertexAttribPointer3fv(const std::string& attribName, int stride, const char* pointer);
+
+		void DrawVertexRenderStruct(const VertexRenderStruct& VertexRenderStruct);
+	};
+
+	
+
+
+	void worldToScreenCoordinates(Vector3f objectPos,
+		Matrix4f projectionModelView,
+		int screenWidth, int screenHeight,
+		int& screenX, int& screenY);
+
+};