def set_mode(resolution=(0, 0), flags=0, depth=0):
""" set_mode(resolution=(0,0), flags=0, depth=0) -> Surface
Initialize a window or screen for display
"""
w, h = unpack_rect(resolution)
if w < 0 or h < 0:
raise SDLError("Cannot set negative sized display mode")
if flags == 0:
flags = sdl.SDL_SWSURFACE
if not get_init():
init()
# depth and double buffering attributes need to be set specially for OpenGL
if flags & sdl.SDL_OPENGL:
if flags & sdl.SDL_DOUBLEBUF:
gl_set_attribute(sdl.SDL_GL_DOUBLEBUFFER, 1)
else:
gl_set_attribute(sdl.SDL_GL_DOUBLEBUFFER, 0)
if depth:
gl_set_attribute(sdl.SDL_GL_DEPTH_SIZE, depth)
c_surface = sdl.SDL_SetVideoMode(w, h, depth, flags)
if c_surface and gl_get_attribute(sdl.SDL_GL_DOUBLEBUFFER):
c_surface.flags |= sdl.SDL_DOUBLEBUF
else:
if depth == 0:
flags |= sdl.SDL_ANYFORMAT
c_surface = sdl.SDL_SetVideoMode(w, h, depth, flags)
if not c_surface:
raise SDLError.from_sdl_error()
title = ffi.new("char*[1]")
icon = ffi.new("char*[1]")
sdl.SDL_WM_GetCaption(title, icon)
if not title:
sdl.SDL_WM_SetCaption("pygame window", "pygame")
# pygame does this, so it's possibly a good idea
sdl.SDL_PumpEvents()
global _display_surface
_display_surface = SurfaceNoFree._from_sdl_surface(c_surface)
# TODO: set icon stuff
return _display_surface
def set_mode(resolution=(0, 0), flags=0, depth=0):
""" set_mode(resolution=(0,0), flags=0, depth=0) -> Surface
Initialize a window or screen for display
"""
w, h = unpack_rect(resolution)
if w < 0 or h < 0:
raise SDLError("Cannot set negative sized display mode")
if flags == 0:
flags = sdl.SDL_SWSURFACE
if not get_init():
init()
# depth and double buffering attributes need to be set specially for OpenGL
if flags & sdl.SDL_OPENGL:
if flags & sdl.SDL_DOUBLEBUF:
gl_set_attribute(sdl.SDL_GL_DOUBLEBUFFER, 1)
else:
gl_set_attribute(sdl.SDL_GL_DOUBLEBUFFER, 0)
if depth:
gl_set_attribute(sdl.SDL_GL_DEPTH_SIZE, depth)
c_surface = sdl.SDL_SetVideoMode(w, h, depth, flags)
if c_surface and gl_get_attribute(sdl.SDL_GL_DOUBLEBUFFER):
c_surface.flags |= sdl.SDL_DOUBLEBUF
else:
if depth == 0:
flags |= sdl.SDL_ANYFORMAT
c_surface = sdl.SDL_SetVideoMode(w, h, depth, flags)
if not c_surface:
raise SDLError.from_sdl_error()
title = ffi.new("char*[1]")
icon = ffi.new("char*[1]")
sdl.SDL_WM_GetCaption(title, icon)
if not title:
sdl.SDL_WM_SetCaption("pygame window", "pygame")
# pygame does this, so it's possibly a good idea
sdl.SDL_PumpEvents()
global _display_surface
_display_surface = SurfaceNoFree._from_sdl_surface(c_surface)
# TODO: set icon stuff
return _display_surface
def __init__(self, size, flags=0, depth=0, masks=None):
w, h = unpack_rect(size)
if isinstance(depth, Surface):
if masks:
raise ValueError(
"cannot pass surface for depth and color masks")
surface = depth
depth = 0
else:
surface = None
depth = int(depth)
if depth and masks:
Rmask, Gmask, Bmask, Amask = masks
bpp = depth
elif surface is None:
if depth:
bpp = depth
Rmask, Gmask, Bmask, Amask = \
self._get_default_masks(bpp, False)
elif sdl.SDL_GetVideoSurface():
pix = sdl.SDL_GetVideoSurface().format
bpp = pix.BitsPerPixel
Amask = pix.Amask
Rmask = pix.Rmask
Gmask = pix.Gmask
Bmask = pix.Bmask
elif sdl.SDL_WasInit(sdl.SDL_INIT_VIDEO):
pix = sdl.SDL_GetVideoInfo().vfmt
bpp = pix.BitsPerPixel
Amask = pix.Amask
Rmask = pix.Rmask
Gmask = pix.Gmask
Bmask = pix.Bmask
else:
bpp = 32
Rmask, Gmask, Bmask, Amask = \
self._get_default_masks(32, False)
# the alpha mask might be different - must update
if flags & sdl.SDL_SRCALPHA:
Rmask, Gmask, Bmask, Amask = \
self._get_default_masks(bpp, True)
# depth argument was a Surface object
else:
pix = surface._c_surface.format
bpp = pix.BitsPerPixel
if flags & sdl.SDL_SRCALPHA:
Rmask, Gmask, Bmask, Amask = \
self._get_default_masks(bpp, True)
else:
Amask = pix.Amask
Rmask = pix.Rmask
Gmask = pix.Gmask
Bmask = pix.Bmask
self._c_surface = sdl.SDL_CreateRGBSurface(flags, w, h, bpp, Rmask,
Gmask, Bmask, Amask)
self._format = self._c_surface.format
self._w = self._c_surface.w
self._h = self._c_surface.h
if not self._c_surface:
raise SDLError.from_sdl_error()
if masks:
"""
Confirm the surface was created correctly (masks were valid).
Also ensure that 24 and 32 bit surfaces have 8 bit fields
(no losses).
"""
format = self._format
Rmask = (0xFF >> format.Rloss) << format.Rshift
Gmask = (0xFF >> format.Gloss) << format.Gshift
Bmask = (0xFF >> format.Bloss) << format.Bshift
Amask = (0xFF >> format.Aloss) << format.Ashift
bad_loss = format.Rloss or format.Gloss or format.Bloss
if flags & sdl.SDL_SRCALPHA:
bad_loss = bad_loss or format.Aloss
else:
bad_loss = bad_loss or format.Aloss != 8
if (format.Rmask != Rmask or format.Gmask != Gmask
or format.Bmask != Bmask or format.Amask != Amask
or (format.BytesPerPixel >= 3 and bad_loss)):
# Note: don't free _c_surface here. It will
# be done in __del__.
raise ValueError("Invalid mask values")
def __init__(self, size, flags=0, depth=0, masks=None):
w, h = unpack_rect(size)
if isinstance(depth, Surface):
if masks:
raise ValueError("cannot pass surface for depth and color masks")
surface = depth
depth = 0
else:
surface = None
depth = int(depth)
if depth and masks:
Rmask, Gmask, Bmask, Amask = masks
bpp = depth
elif surface is None:
if depth:
bpp = depth
Rmask, Gmask, Bmask, Amask = \
self._get_default_masks(bpp, False)
elif sdl.SDL_GetVideoSurface():
pix = sdl.SDL_GetVideoSurface().format
bpp = pix.BitsPerPixel
Amask = pix.Amask
Rmask = pix.Rmask
Gmask = pix.Gmask
Bmask = pix.Bmask
elif sdl.SDL_WasInit(sdl.SDL_INIT_VIDEO):
pix = sdl.SDL_GetVideoInfo().vfmt
bpp = pix.BitsPerPixel
Amask = pix.Amask
Rmask = pix.Rmask
Gmask = pix.Gmask
Bmask = pix.Bmask
else:
bpp = 32
Rmask, Gmask, Bmask, Amask = \
self._get_default_masks(32, False)
# the alpha mask might be different - must update
if flags & sdl.SDL_SRCALPHA:
Rmask, Gmask, Bmask, Amask = \
self._get_default_masks(bpp, True)
# depth argument was a Surface object
else:
pix = surface._c_surface.format
bpp = pix.BitsPerPixel
if flags & sdl.SDL_SRCALPHA:
Rmask, Gmask, Bmask, Amask = \
self._get_default_masks(bpp, True)
else:
Amask = pix.Amask
Rmask = pix.Rmask
Gmask = pix.Gmask
Bmask = pix.Bmask
self._c_surface = sdl.SDL_CreateRGBSurface(flags, w, h, bpp,
Rmask, Gmask,
Bmask, Amask)
self._format = self._c_surface.format
self._w = self._c_surface.w
self._h = self._c_surface.h
if not self._c_surface:
raise SDLError.from_sdl_error()
if masks:
"""
Confirm the surface was created correctly (masks were valid).
Also ensure that 24 and 32 bit surfaces have 8 bit fields
(no losses).
"""
format = self._format
Rmask = (0xFF >> format.Rloss) << format.Rshift
Gmask = (0xFF >> format.Gloss) << format.Gshift
Bmask = (0xFF >> format.Bloss) << format.Bshift
Amask = (0xFF >> format.Aloss) << format.Ashift
bad_loss = format.Rloss or format.Gloss or format.Bloss
if flags & sdl.SDL_SRCALPHA:
bad_loss = bad_loss or format.Aloss
else:
bad_loss = bad_loss or format.Aloss != 8
if (format.Rmask != Rmask or format.Gmask != Gmask or
format.Bmask != Bmask or format.Amask != Amask or
(format.BytesPerPixel >= 3 and bad_loss)):
# Note: don't free _c_surface here. It will
# be done in __del__.
raise ValueError("Invalid mask values")
