def update_sub_surface( self,
texel_data,
transfer_pixels,
sub_surface_size, # updated region size
unpack_offset = None, # crop offset
update_offset = None, # update offset
mipmap_level = 0,
data_format = None, # automatic guess unless set explicitly
data_type = None, # automatic guess unless set explicitly
):
# make myself the active texture
gl.glBindTexture(self.target, self.gl_id)
if data_format is None: # guess the format of the data
if isinstance(texel_data,pygame.surface.Surface):
if texel_data.get_alpha():
data_format = gl.GL_RGBA
else:
data_format = gl.GL_RGB
data_type = gl.GL_UNSIGNED_BYTE
target = gl.GL_TEXTURE_2D
if unpack_offset is None:
unpack_offset = (0, 0)
if update_offset is None:
update_offset = (0, 0)
width, _height = texel_data.get_size()
if transfer_pixels or self.raw_data is None:
if texel_data.get_alpha():
self.raw_data = pygame.image.tostring(texel_data,'RGBA',1)
else:
self.raw_data = pygame.image.tostring(texel_data,'RGB',1)
gl.glPixelStorei( gl.GL_UNPACK_ROW_LENGTH, width)
gl.glPixelStorei( gl.GL_UNPACK_SKIP_PIXELS, unpack_offset[0])
gl.glPixelStorei( gl.GL_UNPACK_SKIP_ROWS, unpack_offset[1])
gl.glTexSubImage2D(target,
mipmap_level,
update_offset[0],
update_offset[1],
sub_surface_size[0],
sub_surface_size[1],
data_format,
data_type,
self.raw_data)
gl.glPixelStorei( gl.GL_UNPACK_ROW_LENGTH, 0)
gl.glPixelStorei( gl.GL_UNPACK_SKIP_PIXELS, 0)
gl.glPixelStorei( gl.GL_UNPACK_SKIP_ROWS, 0)
def update_sub_surface( self,
texel_data,
transfer_pixels,
sub_surface_size, # updated region size
unpack_offset = None, # crop offset
update_offset = None, # update offset
mipmap_level = 0,
data_format = None, # automatic guess unless set explicitly
data_type = None, # automatic guess unless set explicitly
):
# make myself the active texture
gl.glBindTexture(self.target, self.gl_id)
data_format = gl.GL_RGB
data_type = gl.GL_UNSIGNED_BYTE
target = gl.GL_TEXTURE_2D
if unpack_offset is None:
unpack_offset = (0, 0)
if update_offset is None:
update_offset = (0, 0)
width, _height = texel_data.get_size()
raw_data = np.frombuffer(self.buffer_data, 'B')
gl.glPixelStorei( gl.GL_UNPACK_ROW_LENGTH, width)
gl.glPixelStorei( gl.GL_UNPACK_SKIP_PIXELS, unpack_offset[0])
gl.glPixelStorei( gl.GL_UNPACK_SKIP_ROWS, unpack_offset[1])
gl.glTexSubImage2D(target,
mipmap_level,
update_offset[0],
update_offset[1],
sub_surface_size[0],
sub_surface_size[1],
data_format,
data_type,
raw_data)
gl.glPixelStorei( gl.GL_UNPACK_ROW_LENGTH, 0)
gl.glPixelStorei( gl.GL_UNPACK_SKIP_PIXELS, 0)
gl.glPixelStorei( gl.GL_UNPACK_SKIP_ROWS, 0)
