Graphics Animations & Renaming

Graphics/private/bindings/Window.cpp

@@ -0,0 +1,150 @@
+#include "Window.hpp"
+
+// -------- OpenGL -------- //
+#include <GL/glew.h>
+
+#include "WindowContext.hpp"
+
+#include <cstdio>
+
+namespace tp {
+	class Graphics::GL::Context {
+	public:
+		// Showoff data
+		GLuint vao{};
+		GLuint vbo{};
+		GLfloat vertices[9] = {
+				-0.0f, -0.0f, 0.0f, // Left vertex
+				1.0f, 0.0f, 0.0f,  // Right vertex
+				0.5f, 1.0f, 0.0f     // Top vertex
+		};
+	};
+}
+
+using namespace tp;
+
+Graphics::GL::GL() {
+	mContext = new Context();
+}
+
+Graphics::GL::~GL() {
+	delete mContext;
+}
+
+void Graphics::GL::init() {
+	// Create a Vertex Array Object (VAO)
+	glGenVertexArrays(1, &mContext->vao);
+	glBindVertexArray(mContext->vao);
+
+	// Create a Vertex Buffer Object (VBO)
+	glGenBuffers(1, &mContext->vbo);
+	glBindBuffer(GL_ARRAY_BUFFER, mContext->vbo);
+	glBufferData(GL_ARRAY_BUFFER, sizeof(mContext->vertices), mContext->vertices, GL_STATIC_DRAW);
+
+	// Set up vertex attributes
+	glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 3 * sizeof(GLfloat), (void*) nullptr);
+	glEnableVertexAttribArray(0);
+}
+
+void Graphics::GL::deinit() {
+	glDeleteBuffers(1, &mContext->vbo);
+	glDeleteVertexArrays(1, &mContext->vao);
+}
+
+void Graphics::GL::proc() {
+	glClear(GL_COLOR_BUFFER_BIT);
+}
+
+void Graphics::GL::draw() {
+	glDrawArrays(GL_TRIANGLES, 0, 3);
+}
+
+void Graphics::init(Window* window) {
+	mGl.init();
+	mGui.init(window);
+	mCanvas.init();
+}
+
+void Graphics::deinit() {
+	mCanvas.deinit();
+	mGui.deinit();
+	mGl.deinit();
+}
+
+void Graphics::draw() {
+	mGl.proc();
+	mCanvas.proc();
+	mGui.proc();
+
+	mGl.draw();
+	mCanvas.draw();
+	mGui.draw();
+}
+
+Window::Window(int width, int height, const char* title) {
+	mContext = new Context();
+
+	// Create a window and OpenGL context
+	mContext->window = glfwCreateWindow(width, height, title, nullptr, nullptr);
+	if (!mContext->window) {
+		printf("Failed to create GLFW window\n");
+		return;
+	}
+
+	glfwMakeContextCurrent(mContext->window);
+
+	// Initialize GLEW
+	if (glewInit() != GLEW_OK) {
+		printf("Failed to initialize GLEW\n");
+		return;
+	}
+
+	mGraphics.init(this);
+}
+
+Window::~Window() {
+	mGraphics.deinit();
+	glfwDestroyWindow(mContext->window);
+	delete mContext;
+}
+
+
+Window* Window::createWindow(int width, int height, const char* title) {
+	static int count = 1;
+	if (!count) {
+		printf("Window class is a singleton\n");
+		return nullptr;
+	}
+	count--;
+
+	// Initialize GLFW
+	if (!glfwInit()) {
+		printf("Failed to initialize GLFW\n");
+		return nullptr;
+	}
+
+	// Set the GLFW error callback
+	glfwSetErrorCallback([] (int error, const char* description) {
+		printf("GLFW Error: %i %s\n", error, description);
+	});
+
+	return new Window(width, height, title);
+}
+
+void Window::destroyWindow(Window* window) {
+	delete window;
+	glfwTerminate();
+}
+
+void Window::renderLoop() {
+	while (!glfwWindowShouldClose(mContext->window)) {
+
+		mGraphics.draw();
+
+		// Swap buffers and poll events
+		glfwSwapBuffers(mContext->window);
+		glfwPollEvents();
+	}
+}
+
+auto Window::getContext() -> Context* { return mContext; }