initial version

gl3.h

@@ -0,0 +1,34 @@
+#ifndef GL3_H
+#define GL3_H
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdbool.h>
+#include <unistd.h>
+
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <GL/glew.h>
+#include <GL/gl.h>
+#include <GL/glx.h>
+
+typedef struct {
+  Display *display;
+  Window win;
+  Colormap cmap;
+  GLXContext ctx;
+  Atom wm_protocols;
+  Atom wm_delete_window;
+} GLInfo;
+
+bool initGL(int screen, int mask, GLInfo *glinfo);
+void destroyGL(GLInfo *glinfo);
+bool initShaders(const char *vertexShaderSrc, const char *fragmentShaderSrc, GLuint *program);
+
+static Bool alwaysTruePredicate(Display *display, XEvent *event, XPointer arg)
+{
+  return true;
+}
+
+#endif