def _test_object_creation_and_deletion(): # Stuff that is originally glGenX # Note that if we test glIsTexture(x), we cannot assume x to be a # nonexisting texture; we might have created a texture in another # test and failed to clean it up. # Create/delete texture #assert_equal(gl.glIsTexture(12), False) handle = gl.glCreateTexture() gl.glBindTexture(gl.GL_TEXTURE_2D, handle) assert_equal(gl.glIsTexture(handle), True) gl.glDeleteTexture(handle) assert_equal(gl.glIsTexture(handle), False) # Create/delete buffer #assert_equal(gl.glIsBuffer(12), False) handle = gl.glCreateBuffer() gl.glBindBuffer(gl.GL_ARRAY_BUFFER, handle) assert_equal(gl.glIsBuffer(handle), True) gl.glDeleteBuffer(handle) assert_equal(gl.glIsBuffer(handle), False) # Create/delete framebuffer #assert_equal(gl.glIsFramebuffer(12), False) handle = gl.glCreateFramebuffer() gl.glBindFramebuffer(gl.GL_FRAMEBUFFER, handle) assert_equal(gl.glIsFramebuffer(handle), True) gl.glDeleteFramebuffer(handle) assert_equal(gl.glIsFramebuffer(handle), False) # Create/delete renderbuffer #assert_equal(gl.glIsRenderbuffer(12), False) handle = gl.glCreateRenderbuffer() gl.glBindRenderbuffer(gl.GL_RENDERBUFFER, handle) assert_equal(gl.glIsRenderbuffer(handle), True) gl.glDeleteRenderbuffer(handle) assert_equal(gl.glIsRenderbuffer(handle), False) # Stuff that is originally called glCreate # Create/delete program #assert_equal(gl.glIsProgram(12), False) handle = gl.glCreateProgram() assert_equal(gl.glIsProgram(handle), True) gl.glDeleteProgram(handle) assert_equal(gl.glIsProgram(handle), False) # Create/delete shader #assert_equal(gl.glIsShader(12), False) handle = gl.glCreateShader(gl.GL_VERTEX_SHADER) assert_equal(gl.glIsShader(handle), True) gl.glDeleteShader(handle) assert_equal(gl.glIsShader(handle), False) gl.check_error()