func TestTexCoordPointer(t *testing.T) {
gl.EnableClientState(gl.TEXTURE_COORD_ARRAY)
gl.TexCoordPointer(3, gl.INT, 0, &array)
if gl.GetError() != gl.NO_ERROR {
t.Error("pointer to array failed")
}
gl.TexCoordPointer(3, gl.INT, 0, slice)
if gl.GetError() != gl.NO_ERROR {
t.Error("slice failed")
}
gl.DisableClientState(gl.TEXTURE_COORD_ARRAY)
buf := newBuffer(16 * 4)
defer buf.Delete()
gl.TexCoordPointer(3, gl.INT, 0, uintptr(0))
if gl.GetError() != gl.NO_ERROR {
t.Error("buffer offset failed")
}
}
func initGl() {
h := float64(height) / float64(width)
gl.ShadeModel(gl.FLAT)
gl.Viewport(0, 0, width, height)
gl.MatrixMode(gl.PROJECTION)
gl.LoadIdentity()
gl.Frustum(-1.0, 1.0, -h, h, 5.0, 60.0)
gl.MatrixMode(gl.MODELVIEW)
gl.LoadIdentity()
gl.Translatef(0.0, 0.0, -6.0)
gl.EnableClientState(gl.VERTEX_ARRAY)
gl.EnableClientState(gl.TEXTURE_COORD_ARRAY)
gl.VertexPointer(3, gl.FLOAT, 0, vertices)
gl.TexCoordPointer(2, gl.FLOAT, 0, texCoords)
}