def test_gl_get_set_attribute(self):
self.assertRaises(sdl.SDLError, video.gl_get_attribute,
video.SDL_GL_DEPTH_SIZE)
self.assertRaises(sdl.SDLError, video.gl_set_attribute,
1455, 24)
self.assertTrue(video.gl_load_library())
window = video.create_window("OpenGL", 10, 10, 10, 10,
video.SDL_WINDOW_OPENGL)
ctx = video.gl_create_context(window)
depth = video.gl_get_attribute(video.SDL_GL_DEPTH_SIZE)
video.gl_delete_context(ctx)
video.destroy_window(window)
newdepth = 24
if depth == 8:
newdepth = 16
elif depth == 16:
newdepth = 24
elif depth == 24:
newdepth = 16
video.gl_set_attribute(video.SDL_GL_DEPTH_SIZE, newdepth)
window = video.create_window("OpenGL", 10, 10, 10, 10,
video.SDL_WINDOW_OPENGL)
ctx = video.gl_create_context(window)
val = video.gl_get_attribute(video.SDL_GL_DEPTH_SIZE)
self.assertNotEqual(depth, val)
self.assertEqual(val, newdepth)
video.gl_delete_context(ctx)
video.destroy_window(window)
video.gl_unload_library()
def sdl_init(size=(1280, 800), title = "DFFG testbed", icon = None, gldebug=False, fwdcore=False):
log = logging.getLogger('fgt.sdl_init')
sdlhints.set_hint(SDL_HINT_RENDER_DRIVER, 'software') # do not need no renderer
sdlhints.set_hint(SDL_HINT_FRAMEBUFFER_ACCELERATION, '0') # do not need no window surface
sdl.init(sdl.SDL_INIT_VIDEO | sdl.SDL_INIT_NOPARACHUTE)
cflags = 0
cmask = 0
fwdcore = False # mesa doesn't support it :(
if fwdcore:
cflags |= SDL_GL_CONTEXT_FORWARD_COMPATIBLE_FLAG
cmask |= SDL_GL_CONTEXT_PROFILE_CORE
else:
cmask |= SDL_GL_CONTEXT_PROFILE_COMPATIBILITY
if gldebug:
cflags |= SDL_GL_CONTEXT_DEBUG_FLAG
gl_attrs = (
(SDL_GL_RED_SIZE, "SDL_GL_RED_SIZE", 8),
(SDL_GL_GREEN_SIZE, "SDL_GL_GREEN_SIZE", 8),
(SDL_GL_BLUE_SIZE, "SDL_GL_BLUE_SIZE", 8),
(SDL_GL_ALPHA_SIZE, "SDL_GL_ALPHA_SIZE", 8),
(SDL_GL_DEPTH_SIZE, "SDL_GL_DEPTH_SIZE", 0),
(SDL_GL_STENCIL_SIZE, "SDL_GL_STENCIL_SIZE", 0),
(SDL_GL_DOUBLEBUFFER, "SDL_GL_DOUBLEBUFFER", 1),
(SDL_GL_CONTEXT_MAJOR_VERSION, "SDL_GL_CONTEXT_MAJOR_VERSION", 3),
(SDL_GL_CONTEXT_MINOR_VERSION, "SDL_GL_CONTEXT_MINOR_VERSION", 0),
(SDL_GL_CONTEXT_PROFILE_MASK, "SDL_GL_CONTEXT_PROFILE_MASK", cmask),
(SDL_GL_CONTEXT_FLAGS, "SDL_GL_CONTEXT_FLAGS", cflags),
)
for attr, name, val in gl_attrs:
log.debug("requesting {} [{}] = {}".format(name, attr, val))
sdlvideo.gl_set_attribute(attr, val)
window = sdlvideo.create_window(title, SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED,
size[0], size[1], SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE)
if icon:
sdlvideo.set_window_icon(window, icon)
context = sdlvideo.gl_create_context(window)
gldumplog("just after context", logger=log) # this catches PyOpenGL's try: glGetString() except: glGetStringiv() unsanity
for attr, name, val in gl_attrs:
got = sdlvideo.gl_get_attribute(attr)
log.debug("{} requested {} got {}".format(name, val, got))
try:
log.info("glGet: vers = {}.{} flags={} " .format(
glGetInteger(GL_MAJOR_VERSION),
glGetInteger(GL_MINOR_VERSION),
glGetInteger(GL_CONTEXT_FLAGS)))
except KeyError:
pass
if not fwdcore:
glEnable(GL_POINT_SPRITE)
glEnable(GL_VERTEX_PROGRAM_POINT_SIZE)
glEnable(GL_BLEND)
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA)
glDisable(GL_DEPTH_TEST)
sdlttf.init()
sdlimage.init()
return window, context