def get_clip(self):
""" get_clip() -> Rect
get the current clipping area of the Surface
"""
self.check_surface()
c_rect = self._c_surface.clip_rect
return Rect._from4(c_rect.x, c_rect.y, c_rect.w, c_rect.h)
def get_clip(self):
""" get_clip() -> Rect
get the current clipping area of the Surface
"""
self.check_surface()
c_rect = self._c_surface.clip_rect
return Rect._from4(c_rect.x, c_rect.y, c_rect.w, c_rect.h)
def get_rect(self, **kwargs):
r = Rect._from4(0, 0, self._w, self._h)
if kwargs:
for attr, value in kwargs.items():
# Logic copied form pygame/surface.c - blame them
setattr(r, attr, value)
return r
def fill(self, color, rect=None, special_flags=0):
""" fill(color, rect=None, special_flags=0) -> Rect
fill Surface with a solid color
"""
self.check_opengl()
c_color = create_color(color, self._format)
sdlrect = ffi.new('SDL_Rect*')
if rect is not None:
sdlrect.x, sdlrect.y, sdlrect.w, sdlrect.h = rect_vals_from_obj(
rect)
else:
sdlrect.w = self._w
sdlrect.h = self._h
if self.crop_to_surface(sdlrect):
if special_flags:
res = sdl.surface_fill_blend(self._c_surface, sdlrect, c_color,
special_flags)
else:
with locked(self._c_surface):
# TODO: prep/unprep
res = sdl.SDL_FillRect(self._c_surface, sdlrect, c_color)
if res == -1:
raise SDLError.from_sdl_error()
return Rect._from4(sdlrect.x, sdlrect.y, sdlrect.w, sdlrect.h)
def get_rect(self, **kwargs):
r = Rect._from4(0, 0, self._w, self._h)
if kwargs:
for attr, value in kwargs.items():
# Logic copied form pygame/surface.c - blame them
setattr(r, attr, value)
return r
def fill(self, color, rect=None, special_flags=0):
""" fill(color, rect=None, special_flags=0) -> Rect
fill Surface with a solid color
"""
self.check_opengl()
c_color = create_color(color, self._format)
sdlrect = ffi.new('SDL_Rect*')
if rect is not None:
sdlrect.x, sdlrect.y, sdlrect.w, sdlrect.h = rect_vals_from_obj(rect)
else:
sdlrect.w = self._w
sdlrect.h = self._h
if self.crop_to_surface(sdlrect):
if special_flags:
res = sdl.surface_fill_blend(self._c_surface, sdlrect,
c_color, special_flags)
else:
with locked(self._c_surface):
# TODO: prep/unprep
res = sdl.SDL_FillRect(self._c_surface, sdlrect, c_color)
if res == -1:
raise SDLError.from_sdl_error()
return Rect._from4(sdlrect.x, sdlrect.y, sdlrect.w, sdlrect.h)
def get_clip(self):
""" get_clip() -> Rect
get the current clipping area of the Surface
"""
if not self._c_surface:
raise SDLError("display Surface quit")
c_rect = self._c_surface.clip_rect
return Rect._from4(c_rect.x, c_rect.y, c_rect.w, c_rect.h)
def get_bounding_rect(self, min_alpha=1):
""" get_bounding_rect(min_alpha = 1) -> Rect
find the smallest rect containing data
"""
self.check_surface()
min_alpha = int(min_alpha)
if min_alpha > 255:
min_alpha = 255
elif min_alpha < 0:
min_alpha = 0
r, g, b, a = (ffi.new('uint8_t *'), ffi.new('uint8_t *'),
ffi.new('uint8_t *'), ffi.new('uint8_t *'))
format = self._c_surface.format
if self._c_surface.flags & sdl.SDL_SRCCOLORKEY:
keyr = ffi.new('uint8_t *')
keyg = ffi.new('uint8_t *')
keyb = ffi.new('uint8_t *')
sdl.SDL_GetRGBA(self._c_surface.format.colorkey, format, keyr,
keyg, keyb, a)
keyr, keyg, keyb = keyr[0], keyg[0], keyb[0]
else:
keyr = keyg = keyb = None
min_x, min_y, max_x, max_y = 0, 0, self._w, self._h
def check_alpha(x, y):
value = self._get_at(x, y)
sdl.SDL_GetRGBA(value, format, r, g, b, a)
if (keyr is None and a[0] >= min_alpha) or \
(keyr is not None and (r[0] != keyr or
g[0] != keyg or
b[0] != keyb)):
return True
return False
with locked(self._c_surface):
found_alpha = False
for y in range(max_y - 1, -1, -1):
for x in range(min_x, max_x):
found_alpha = check_alpha(x, y)
if found_alpha:
break
if found_alpha:
break
max_y = y
found_alpha = False
for x in range(max_x - 1, -1, -1):
for y in range(min_y, max_y):
found_alpha = check_alpha(x, y)
if found_alpha:
break
if found_alpha:
break
max_x = x
found_alpha = False
for y in range(min_y, max_y):
min_y = y
for x in range(min_x, max_x):
found_alpha = check_alpha(x, y)
if found_alpha:
break
if found_alpha:
break
found_alpha = False
for x in range(min_x, max_x):
min_x = x
for y in range(min_y, max_y):
found_alpha = check_alpha(x, y)
if found_alpha:
break
if found_alpha:
break
return Rect._from4(min_x, min_y, max_x - min_x, max_y - min_y)
def blit(self, source, dest, area=None, special_flags=0):
""" blit(source, dest, area=None, special_flags = 0) -> Rect
draw one image onto another
"""
if not self._c_surface or not source._c_surface:
raise SDLError("display Surface quit")
if self.is_pure_opengl():
raise SDLError("Cannot blit to OPENGL Surfaces (OPENGLBLIT is ok)")
srcrect = ffi.new('SDL_Rect*')
destrect = ffi.new('SDL_Rect*')
if area is not None:
srcrect.x, srcrect.y, srcrect.w, srcrect.h = \
rect_vals_from_obj(area)
else:
srcrect.w = source._w
srcrect.h = source._h
if isinstance(dest, tuple) and len(dest) == 2:
destrect.x = int(dest[0])
destrect.y = int(dest[1])
destrect.w = source._w
destrect.h = source._h
else:
destrect.x, destrect.y, destrect.w, destrect.h = \
rect_vals_from_obj(dest)
c_dest = self._c_surface
c_src = source._c_surface
c_subsurface = None
flags = special_flags
if self.subsurfacedata:
owner = self.subsurfacedata.owner
c_subsurface = owner._c_surface
suboffsetx = self.subsurfacedata.xoffset
suboffsety = self.subsurfacedata.yoffset
while owner.subsurfacedata:
subdata = owner.subsurfacedata
owner = subdata.owner
c_subsurface = owner._c_surface
suboffsetx += subdata.xoffset
suboffsety += subdata.yoffset
orig_clip = ffi.new('SDL_Rect*')
sub_clip = ffi.new('SDL_Rect*')
sdl.SDL_GetClipRect(c_subsurface, orig_clip)
sdl.SDL_GetClipRect(self._c_surface, sub_clip)
sub_clip[0].x += suboffsetx
sub_clip[0].y += suboffsety
sdl.SDL_SetClipRect(c_subsurface, sub_clip)
destrect.x += suboffsetx
destrect.y += suboffsety
c_dest = c_subsurface
# TODO: implement special blend flags
# these checks come straight from pygame - copied comments
if (c_dest.format.Amask and (c_dest.flags & sdl.SDL_SRCALPHA)
and not (c_src.format.Amask
and not (c_src.flags & sdl.SDL_SRCALPHA))
and (c_dest.format.BytesPerPixel == 2
or c_dest.format.BytesPerPixel == 4)):
# SDL works for 2 and 4 bytes
res = sdl.pygame_Blit(c_src, srcrect, c_dest, destrect, flags)
elif flags or (c_src.flags & (sdl.SDL_SRCALPHA | sdl.SDL_SRCCOLORKEY)
and c_dest.pixels == c_src.pixels
and check_surface_overlap(c_src, srcrect, c_dest,
destrect)):
'''
This simplification is possible because a source subsurface
is converted to its owner with a clip rect and a dst
subsurface cannot be blitted to its owner because the
owner is locked.
'''
res = sdl.pygame_Blit(c_src, srcrect, c_dest, destrect, flags)
# can't blit alpha to 8bit, crashes SDL
elif (c_dest.format.BytesPerPixel == 1
and (c_src.format.Amask or c_src.flags & sdl.SDL_SRCALPHA)):
if c_src.format.BytesPerPixel == 1:
res = sdl.pygame_Blit(c_src, srcrect, c_dest, destrect, 0)
elif sdl.SDL_WasInit(sdl.SDL_INIT_VIDEO):
# TODO: SDL_DisplayFormat segfaults
c_src = sdl.SDL_DisplayFormat(c_src)
if c_src:
res = sdl.SDL_BlitSurface(c_src, srcrect, c_dest, destrect)
sdl.SDL_FreeSurface(c_src)
else:
res = -1
else:
raise NotImplementedError()
else:
res = sdl.SDL_BlitSurface(c_src, srcrect, c_dest, destrect)
if c_subsurface:
sdl.SDL_SetClipRect(c_subsurface, orig_clip)
destrect.x -= suboffsetx
destrect.y -= suboffsety
else:
# TODO: prep/unprep
pass
if res == -1:
raise SDLError.from_sdl_error()
elif res == -2:
raise SDLError("Surface was lost")
return Rect._from4(destrect.x, destrect.y, destrect.w, destrect.h)
def get_bounding_rect(self, min_alpha=1):
""" get_bounding_rect(min_alpha = 1) -> Rect
find the smallest rect containing data
"""
self.check_surface()
min_alpha = int(min_alpha)
if min_alpha > 255:
min_alpha = 255
elif min_alpha < 0:
min_alpha = 0
r, g, b, a = (ffi.new('uint8_t *'), ffi.new('uint8_t *'),
ffi.new('uint8_t *'), ffi.new('uint8_t *'))
format = self._c_surface.format
if self._c_surface.flags & sdl.SDL_SRCCOLORKEY:
keyr = ffi.new('uint8_t *')
keyg = ffi.new('uint8_t *')
keyb = ffi.new('uint8_t *')
sdl.SDL_GetRGBA(self._c_surface.format.colorkey,
format, keyr, keyg, keyb, a)
keyr, keyg, keyb = keyr[0], keyg[0], keyb[0]
else:
keyr = keyg = keyb = None
min_x, min_y, max_x, max_y = 0, 0, self._w, self._h
def check_alpha(x, y):
value = self._get_at(x, y)
sdl.SDL_GetRGBA(value, format, r, g, b, a)
if (keyr is None and a[0] >= min_alpha) or \
(keyr is not None and (r[0] != keyr or
g[0] != keyg or
b[0] != keyb)):
return True
return False
with locked(self._c_surface):
found_alpha = False
for y in range(max_y - 1, -1, -1):
for x in range(min_x, max_x):
found_alpha = check_alpha(x, y)
if found_alpha:
break
if found_alpha:
break
max_y = y
found_alpha = False
for x in range(max_x - 1, -1, -1):
for y in range(min_y, max_y):
found_alpha = check_alpha(x, y)
if found_alpha:
break
if found_alpha:
break
max_x = x
found_alpha = False
for y in range(min_y, max_y):
min_y = y
for x in range(min_x, max_x):
found_alpha = check_alpha(x, y)
if found_alpha:
break
if found_alpha:
break
found_alpha = False
for x in range(min_x, max_x):
min_x = x
for y in range(min_y, max_y):
found_alpha = check_alpha(x, y)
if found_alpha:
break
if found_alpha:
break
return Rect._from4(min_x, min_y, max_x - min_x, max_y - min_y)
def blit(self, source, dest, area=None, special_flags=0):
""" blit(source, dest, area=None, special_flags = 0) -> Rect
draw one image onto another
"""
if not self._c_surface or not source._c_surface:
raise SDLError("display Surface quit")
if self.is_pure_opengl():
raise SDLError("Cannot blit to OPENGL Surfaces (OPENGLBLIT is ok)")
srcrect = ffi.new('SDL_Rect*')
destrect = ffi.new('SDL_Rect*')
if area is not None:
srcrect.x, srcrect.y, srcrect.w, srcrect.h = \
rect_vals_from_obj(area)
else:
srcrect.w = source._w
srcrect.h = source._h
if isinstance(dest, tuple) and len(dest) == 2:
destrect.x = int(dest[0])
destrect.y = int(dest[1])
destrect.w = source._w
destrect.h = source._h
else:
destrect.x, destrect.y, destrect.w, destrect.h = \
rect_vals_from_obj(dest)
c_dest = self._c_surface
c_src = source._c_surface
c_subsurface = None
flags = special_flags
if self.subsurfacedata:
owner = self.subsurfacedata.owner
c_subsurface = owner._c_surface
suboffsetx = self.subsurfacedata.xoffset
suboffsety = self.subsurfacedata.yoffset
while owner.subsurfacedata:
subdata = owner.subsurfacedata
owner = subdata.owner
c_subsurface = owner._c_surface
suboffsetx += subdata.xoffset
suboffsety += subdata.yoffset
orig_clip = ffi.new('SDL_Rect*')
sub_clip = ffi.new('SDL_Rect*')
sdl.SDL_GetClipRect(c_subsurface, orig_clip)
sdl.SDL_GetClipRect(self._c_surface, sub_clip)
sub_clip[0].x += suboffsetx
sub_clip[0].y += suboffsety
sdl.SDL_SetClipRect(c_subsurface, sub_clip)
destrect.x += suboffsetx
destrect.y += suboffsety
c_dest = c_subsurface
# TODO: implement special blend flags
# these checks come straight from pygame - copied comments
if (c_dest.format.Amask and (c_dest.flags & sdl.SDL_SRCALPHA) and
not (c_src.format.Amask and not (c_src.flags & sdl.SDL_SRCALPHA)) and
(c_dest.format.BytesPerPixel == 2 or c_dest.format.BytesPerPixel == 4)):
# SDL works for 2 and 4 bytes
res = sdl.pygame_Blit(c_src, srcrect, c_dest, destrect, flags)
elif flags or (c_src.flags & (sdl.SDL_SRCALPHA | sdl.SDL_SRCCOLORKEY)
and c_dest.pixels == c_src.pixels
and check_surface_overlap(c_src, srcrect, c_dest, destrect)):
'''
This simplification is possible because a source subsurface
is converted to its owner with a clip rect and a dst
subsurface cannot be blitted to its owner because the
owner is locked.
'''
res = sdl.pygame_Blit(c_src, srcrect, c_dest, destrect, flags)
# can't blit alpha to 8bit, crashes SDL
elif (c_dest.format.BytesPerPixel == 1 and (c_src.format.Amask
or c_src.flags & sdl.SDL_SRCALPHA)):
if c_src.format.BytesPerPixel == 1:
res = sdl.pygame_Blit(c_src, srcrect, c_dest, destrect, 0)
elif sdl.SDL_WasInit(sdl.SDL_INIT_VIDEO):
# TODO: SDL_DisplayFormat segfaults
c_src = sdl.SDL_DisplayFormat(c_src)
if c_src:
res = sdl.SDL_BlitSurface(c_src, srcrect, c_dest, destrect)
sdl.SDL_FreeSurface(c_src)
else:
res = -1
else:
raise NotImplementedError()
else:
res = sdl.SDL_BlitSurface(c_src, srcrect, c_dest, destrect)
if c_subsurface:
sdl.SDL_SetClipRect(c_subsurface, orig_clip)
destrect.x -= suboffsetx
destrect.y -= suboffsety
else:
# TODO: prep/unprep
pass
if res == -1:
raise SDLError.from_sdl_error()
elif res == -2:
raise SDLError("Surface was lost")
return Rect._from4(destrect.x, destrect.y, destrect.w, destrect.h)
