feat(shader): add shader file

inc/shader.hpp

@@ -0,0 +1,28 @@
+#ifndef SHADER_HPP
+#define SHADER_HPP
+
+#include <gl/glew.h>
+#include <glm/glm.hpp>
+#include <glm/gtc/matrix_transform.hpp>
+#include <glm/gtc/type_ptr.hpp>
+
+class Shaders
+{
+private:
+    GLuint vertexShader;
+    GLuint fragmentShader;
+    GLuint shaderProgram;
+
+    void addVertShader(const char* vertexShaderSource);
+    void addFragShader(const char* fragmentShaderSource);
+    void compileInProgram();
+
+public:
+    Shaders(const char* vertexShaderSource, const char* fragmentShaderSource);             
+    ~Shaders();
+    
+    GLuint getProgram() const;
+    void use() const;
+};
+
+#endif

src/shader.cpp

@@ -0,0 +1,52 @@
+#include "shader.hpp"
+
+Shaders::Shaders(const char* vertexShaderSource, const char* fragmentShaderSource)
+{
+    vertexShader = glCreateShader(GL_VERTEX_SHADER);     
+    fragmentShader = glCreateShader(GL_FRAGMENT_SHADER); 
+    shaderProgram = glCreateProgram();                   
+
+    addVertShader(vertexShaderSource);
+    addFragShader(fragmentShaderSource);
+
+    compileInProgram();
+}
+
+void Shaders::addVertShader(const char* vertexShaderSource)
+{
+    glShaderSource(vertexShader, 1, &vertexShaderSource, nullptr);
+    glCompileShader(vertexShader);
+}
+
+void Shaders::addFragShader(const char* fragmentShaderSource)
+{
+    glShaderSource(fragmentShader, 1, &fragmentShaderSource, nullptr);
+    glCompileShader(fragmentShader);
+}
+
+void Shaders::compileInProgram()
+{
+    glAttachShader(shaderProgram, vertexShader);
+    glAttachShader(shaderProgram, fragmentShader);
+    glLinkProgram(shaderProgram);
+
+    glDetachShader(shaderProgram, vertexShader);
+    glDetachShader(shaderProgram, fragmentShader);
+    glDeleteShader(vertexShader);
+    glDeleteShader(fragmentShader);
+}
+
+Shaders::~Shaders()
+{
+    glDeleteProgram(shaderProgram);
+}
+
+void Shaders::use() const
+{
+    glUseProgram(shaderProgram);
+}
+
+GLuint Shaders::getProgram() const
+{
+    return shaderProgram;
+}