Question

I can’t seem to include glu.h in my Android NDK project.

I’m trying to port existing C++ code to NDK, and it uses glu in a few places (notably gluErrorString).

Does OpenGLES not have glu?

Is there a port I can use?

If not I can probably remove the calls to things like gluPerspective and so on, but what do I do about gluErrorString?

Answer 1

Does OpenGL ES not have glu?

No, it doesn’t. Look at this: Platform OpenGL Includes collection. Under Android there are only the following headers:

OpenGL ES 1.1:

#include <GLES/gl.h>
#include <GLES/glext.h>

OpenGL ES 2.0:

#include <GLES2/gl2.h>
#include <GLES2/gl2ext.h>

---

Is there a port I can use?

Yes, there is a partial port of GLU for Android – GLU ES (it supports gluErrorString, gluPerspective and numerous other functions):

GLU 1.3 partitial port (libutil and libtess components only) for
OpenGL ES 1.x (CM – Common profile) and above.

This port supports:

• Quadrics: gluNewQuadric(), gluDeleteQuadric(), gluQuadricCallback(),
  gluQuadricNormals(), gluQuadricTexture(), gluQuadricOrientation(),
  gluQuadricDrawStyle(), gluCylinder(), gluDisk(), gluPartialDisk(),
  gluSphere().
• Registry: gluGetString(), gluCheckExtension(),
  gluErrorString().
• Projection matrix manipulation: gluOrtho2D(),
  gluPerspective(), gluLookAt(), gluProject(), gluUnProject(),
  gluUnProject4(), gluPickMatrix(). 2D Mipmaps: gluScaleImage(),
  gluBuild2DMipmapLevels(), gluBuild2DMipmaps().
• Tesselation:
  gluBeginPolygon(), gluDeleteTess(), gluEndPolygon(),
  gluGetTessProperty(), gluNewTess(), gluNextContour(),
  gluTessBeginContour(), gluTessBeginPolygon(), gluTessCallback(),
  gluTessEndContour(), gluTessEndPolygon(), gluTessNormal(),
  gluTessProperty(), gluTessVertex().