Add imgui

src/openglshader.cpp

@@ -9,11 +9,29 @@ OpenGlShaderProgram::OpenGlShaderProgram(std::string vertex_file, std::string ge
 	this->geometry_file = geometry_file;
 	this->fragment_file = fragment_file;
 	this->compiled = false;
+	this->setProjectionView(glm::mat4(1.0f), glm::mat4(1.0f));
 }
 
 OpenGlShaderProgram::~OpenGlShaderProgram()
 {
+	this->unload();
+}
 
+void OpenGlShaderProgram::setProjectionView(const glm::mat4 &projection, const glm::mat4 &view)
+{
+	this->proj = projection;
+	this->view = view;
+	this->proj_view = projection * view;
+}
+
+glm::mat4 OpenGlShaderProgram::getProjection()
+{
+	return this->proj;
+}
+
+glm::mat4 OpenGlShaderProgram::getView()
+{
+	return this->view;
 }
 
 std::string load_shader_program_from_file(std::string &file_name)
@@ -154,6 +172,8 @@ int OpenGlShaderProgram::use()
 		return -1;
 
 	glUseProgram(this->shader_program);
+	this->setUniformMat4("projection_view_matrix", this->proj_view);
+
 	return 0;
 }
 
@@ -173,6 +193,14 @@ void OpenGlShaderProgram::setUniformVec2(const std::string &uniform, float *vect
 	}
 }
 
+void OpenGlShaderProgram::setUniformMat4(const std::string &uniform, const glm::mat4 &matrix)
+{
+	int loc = this->getUniformLoc(uniform);
+	if (loc >= 0) {
+		glUniformMatrix4fv(loc, 1, GL_FALSE, &matrix[0][0]);
+	}
+}
+
 int OpenGlShaderProgram::getUniformLoc(const std::string &uniform)
 {
 	if (!this->compiled)