1 files changed, 50 insertions, 0 deletions
diff --git a/display.cpp b/display.cpp
new file mode 100644
index 0000000..4317933
--- /dev/null
+++ b/display.cpp
@@ -0,0 +1,50 @@
+#include "display.h"
+#include <GL/glew.h>
+#include <iostream>
+
+Display::Display(int width, int height, const std::string & title)
+{
+	SDL_Init(SDL_INIT_EVERYTHING);
+
+	SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 8);
+	SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 8);
+	SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 8);
+	SDL_GL_SetAttribute(SDL_GL_ALPHA_SIZE, 8);
+	SDL_GL_SetAttribute(SDL_GL_BUFFER_SIZE, 32);
+	SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 16);
+	SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
+
+	m_window = SDL_CreateWindow(
+			title.c_str(), SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, width, height, SDL_WINDOW_OPENGL);
+	m_glContext = SDL_GL_CreateContext(m_window);
+
+	GLenum res = glewInit();
+	if (res != GLEW_OK) {
+		std::cerr << "Glew failed to initialize!" << std::endl;
+	}
+
+	glEnable(GL_DEPTH_TEST);
+
+	glEnable(GL_CULL_FACE);
+	glCullFace(GL_BACK);
+}
+
+Display::~Display()
+{
+	SDL_GL_DeleteContext(m_glContext);
+	SDL_DestroyWindow(m_window);
+	SDL_Quit();
+}
+
+void
+Display::Clear(float r, float g, float b, float a)
+{
+	glClearColor(r, g, b, a);
+	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+}
+
+void
+Display::SwapBuffers()
+{
+	SDL_GL_SwapWindow(m_window);
+}