init commit

c_graphics/sample/demo.c

@@ -0,0 +1,24 @@
+/*  demo.c*/
+#include <GL/gl.h>
+#include <GL/glut.h>
+#include <GL/glu.h>
+void setup() {   glClearColor(1.0f, 1.0f, 1.0f, 1.0f); }
+void display()
+   {
+      glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+      glColor3f(0.0f, 0.0f, 0.0f);
+      glRectf(-0.75f,0.75f, 0.75f, -0.75f);
+      glutSwapBuffers();
+   }
+int main(int argc, char *argv[])
+  {
+     glutInit(&argc, argv);
+     glutInitDisplayMode(GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE);
+     glutInitWindowSize(800,600);
+     glutCreateWindow("Hello World");
+
+     setup();
+     glutDisplayFunc(display);
+     glutMainLoop();
+     return 0;
+  }