def _subimage(self):
gl.glTexSubImage2D (self.target, 0, 0, 0,
self._arr.shape[1],
self._arr.shape[0],
self.src_format,
self.src_type,
self._arr.ctypes.data)
def _updateFrameTexture(self):
if self._nextFrameT is None:
# movie has no current position, need to reset the clock
# to zero in order to have the timing logic work
# otherwise the video stream would skip frames until the
# time since creating the movie object has passed
self._videoClock.reset()
self._nextFrameT = 0
#only advance if next frame (half of next retrace rate)
if self._nextFrameT > self.duration:
self._onEos()
elif (self._numpyFrame is not None) and \
(self._nextFrameT > (self._videoClock.getTime()-self._retraceInterval/2.0)):
return None
self._numpyFrame = self._mov.get_frame(self._nextFrameT)
useSubTex=self.useTexSubImage2D
if self._texID is None:
self._texID = GL.GLuint()
GL.glGenTextures(1, ctypes.byref(self._texID))
useSubTex=False
#bind the texture in openGL
GL.glEnable(GL.GL_TEXTURE_2D)
GL.glBindTexture(GL.GL_TEXTURE_2D, self._texID)#bind that name to the target
GL.glTexParameteri(GL.GL_TEXTURE_2D,GL.GL_TEXTURE_WRAP_S,GL.GL_REPEAT) #makes the texture map wrap (this is actually default anyway)
GL.glPixelStorei(GL.GL_UNPACK_ALIGNMENT, 1) # data from PIL/numpy is packed, but default for GL is 4 bytes
#important if using bits++ because GL_LINEAR
#sometimes extrapolates to pixel vals outside range
if self.interpolate:
GL.glTexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MAG_FILTER, GL.GL_LINEAR)
GL.glTexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MIN_FILTER, GL.GL_LINEAR)
if useSubTex is False:
GL.glTexImage2D(GL.GL_TEXTURE_2D, 0, GL.GL_RGB8,
self._numpyFrame.shape[1],self._numpyFrame.shape[0], 0,
GL.GL_RGB, GL.GL_UNSIGNED_BYTE, self._numpyFrame.ctypes)
else:
GL.glTexSubImage2D(GL.GL_TEXTURE_2D, 0, 0, 0,
self._numpyFrame.shape[1], self._numpyFrame.shape[0],
GL.GL_RGB, GL.GL_UNSIGNED_BYTE, self._numpyFrame.ctypes)
else:
GL.glTexParameteri(GL.GL_TEXTURE_2D,GL.GL_TEXTURE_MAG_FILTER,GL.GL_NEAREST)
GL.glTexParameteri(GL.GL_TEXTURE_2D,GL.GL_TEXTURE_MIN_FILTER,GL.GL_NEAREST)
if useSubTex is False:
GL.glTexImage2D(GL.GL_TEXTURE_2D, 0, GL.GL_RGB8,
self._numpyFrame.shape[1],self._numpyFrame.shape[0], 0,
GL.GL_BGR, GL.GL_UNSIGNED_BYTE, self._numpyFrame.ctypes)
else:
GL.glTexSubImage2D(GL.GL_TEXTURE_2D, 0, 0, 0,
self._numpyFrame.shape[1], self._numpyFrame.shape[0],
GL.GL_BGR, GL.GL_UNSIGNED_BYTE, self._numpyFrame.ctypes)
GL.glTexEnvi(GL.GL_TEXTURE_ENV, GL.GL_TEXTURE_ENV_MODE, GL.GL_MODULATE)#?? do we need this - think not!
if not self.status==PAUSED:
self._nextFrameT += self._frameInterval
def write(self,
data: Union[bytes, Buffer],
level: int = 0,
viewport=None) -> None:
"""Write byte data to the texture. This can be bytes or a :py:class:`~arcade.gl.Buffer`.
:param Union[bytes,Buffer] data: bytes or a Buffer with data to write
:param int level: The texture level to write
:param tuple viewport: The are of the texture to write. 2 or 4 component tuple
"""
# TODO: Support writing to layers using viewport + alignment
if self._samples > 0:
raise ValueError("Writing to multisample textures not supported")
x, y, w, h = 0, 0, self._width, self._height
if viewport:
if len(viewport) == 2:
w, h = viewport
elif len(viewport) == 4:
x, y, w, h = viewport
else:
raise ValueError("Viewport must be of length 2 or 4")
if isinstance(data, Buffer):
gl.glBindBuffer(gl.GL_PIXEL_UNPACK_BUFFER, data.glo)
gl.glActiveTexture(gl.GL_TEXTURE0)
gl.glBindTexture(self._target, self._glo)
gl.glPixelStorei(gl.GL_PACK_ALIGNMENT, 1)
gl.glPixelStorei(gl.GL_UNPACK_ALIGNMENT, 1)
gl.glTexSubImage2D(self._target, level, x, y, w, h, self._format,
self._type, 0)
gl.glBindBuffer(gl.GL_PIXEL_UNPACK_BUFFER, 0)
else:
byte_size, data = data_to_ctypes(data)
gl.glActiveTexture(gl.GL_TEXTURE0)
gl.glBindTexture(self._target, self._glo)
gl.glPixelStorei(gl.GL_PACK_ALIGNMENT, 1)
gl.glPixelStorei(gl.GL_UNPACK_ALIGNMENT, 1)
gl.glTexSubImage2D(
self._target, # target
level, # level
x, # x offset
y, # y offset
w, # width
h, # height
self._format, # format
self._type, # type
data, # pixel data
)
def _draw(self):
gl.glBindTexture(gl.GL_TEXTURE_2D, self._texture_id)
video_buffer = ctypes.cast(self._image.tobytes(), ctypes.POINTER(ctypes.c_short))
gl.glTexSubImage2D(gl.GL_TEXTURE_2D, 0, 0, 0, self._image.shape[1], self._image.shape[0], gl.GL_RGB, gl.GL_UNSIGNED_BYTE, video_buffer)
x = 0
y = 0
w = self._win.width
h = self._win.height
pyglet.graphics.draw(
4,
pyglet.gl.GL_QUADS,
('v2f', [x, y, x + w, y, x + w, y + h, x, y + h]),
('t2f', [0, 1, 1, 1, 1, 0, 0, 0]),
)
def _draw(self):
self._win.clear()
if self._seconds_to_display_done_info > 0:
self._done_info_label.text = "=== episode complete ===\n\n" + self._format_info(
)
self._done_info_label.draw()
return
gl.glBindTexture(gl.GL_TEXTURE_2D, self._texture_id)
image_bytes = self._image.tobytes()
video_buffer = ctypes.cast(image_bytes, ctypes.POINTER(ctypes.c_short))
gl.glTexSubImage2D(
gl.GL_TEXTURE_2D,
0,
0,
0,
self._image.shape[1],
self._image.shape[0],
gl.GL_RGB,
gl.GL_UNSIGNED_BYTE,
video_buffer,
)
x = 0
y = 0
w = self._win.width
h = self._win.height
if self._display_info:
w -= self._info_width
pyglet.graphics.draw(
4,
pyglet.gl.GL_QUADS,
("v2f", [x, y, x + w, y, x + w, y + h, x, y + h]),
("t2f", [0, 1, 1, 1, 1, 0, 0, 0]),
)
self._info_label.text = self._format_info()
if self._display_info:
self._info_label.draw()
def _updateFrameTexture(self):
"""Update texture pixel store to contain the present frame. Decoded
frame image samples are streamed to the texture buffer.
"""
if self._nextFrameT is None or self._nextFrameT < 0:
# movie has no current position (or invalid position -JK),
# need to reset the clock to zero in order to have the
# timing logic work otherwise the video stream would skip
# frames until the time since creating the movie object has passed
self._videoClock.reset()
self._nextFrameT = 0.0
# only advance if next frame (half of next retrace rate)
if self._nextFrameT > self.duration:
self._onEos()
elif self._numpyFrame is not None:
if self._nextFrameT > (self._videoClock.getTime() -
self._retraceInterval / 2.0):
return None
while self._nextFrameT <= (self._videoClock.getTime() -
self._frameInterval * 2):
self.nDroppedFrames += 1
if self.nDroppedFrames <= reportNDroppedFrames:
logging.warning(
"{}: Video catchup needed, advancing self._nextFrameT from"
" {} to {}".format(self._videoClock.getTime(),
self._nextFrameT,
self._nextFrameT + self._frameInterval))
if self.nDroppedFrames == reportNDroppedFrames:
logging.warning(
"Max reportNDroppedFrames reached, will not log any more dropped frames"
)
self._nextFrameT += self._frameInterval
try:
self._numpyFrame = self._mov.get_frame(self._nextFrameT)
except OSError:
if self.autoLog:
logging.warning(
"Frame {} not found, moving one frame and trying again".
format(self._nextFrameT),
obj=self)
self._nextFrameT += self._frameInterval
self._updateFrameTexture()
useSubTex = self.useTexSubImage2D
if self._texID is None:
self._texID = GL.GLuint()
GL.glGenTextures(1, ctypes.byref(self._texID))
useSubTex = False
GL.glActiveTexture(GL.GL_TEXTURE0)
# bind that name to the target
GL.glBindTexture(GL.GL_TEXTURE_2D, self._texID)
# bind the texture in openGL
GL.glEnable(GL.GL_TEXTURE_2D)
# makes the texture map wrap (this is actually default anyway)
GL.glTexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_WRAP_S, GL.GL_CLAMP)
GL.glTexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_WRAP_T, GL.GL_CLAMP)
# data from PIL/numpy is packed, but default for GL is 4 bytes
GL.glPixelStorei(GL.GL_UNPACK_ALIGNMENT, 1)
# important if using bits++ because GL_LINEAR
# sometimes extrapolates to pixel vals outside range
if self.interpolate:
GL.glTexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MAG_FILTER,
GL.GL_LINEAR)
GL.glTexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MIN_FILTER,
GL.GL_LINEAR)
if useSubTex is False:
GL.glTexImage2D(GL.GL_TEXTURE_2D, 0, GL.GL_RGB8,
self._numpyFrame.shape[1],
self._numpyFrame.shape[0], 0, GL.GL_RGB,
GL.GL_UNSIGNED_BYTE, self._numpyFrame.ctypes)
else:
GL.glTexSubImage2D(GL.GL_TEXTURE_2D, 0, 0, 0,
self._numpyFrame.shape[1],
self._numpyFrame.shape[0], GL.GL_RGB,
GL.GL_UNSIGNED_BYTE,
self._numpyFrame.ctypes)
else:
GL.glTexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MAG_FILTER,
GL.GL_NEAREST)
GL.glTexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MIN_FILTER,
GL.GL_NEAREST)
if useSubTex is False:
GL.glTexImage2D(GL.GL_TEXTURE_2D, 0, GL.GL_RGB8,
self._numpyFrame.shape[1],
self._numpyFrame.shape[0], 0, GL.GL_BGR,
GL.GL_UNSIGNED_BYTE, self._numpyFrame.ctypes)
else:
GL.glTexSubImage2D(GL.GL_TEXTURE_2D, 0, 0, 0,
self._numpyFrame.shape[1],
self._numpyFrame.shape[0], GL.GL_BGR,
GL.GL_UNSIGNED_BYTE,
self._numpyFrame.ctypes)
GL.glTexEnvi(GL.GL_TEXTURE_ENV, GL.GL_TEXTURE_ENV_MODE,
GL.GL_MODULATE) # ?? do we need this - think not!
if self.status == PLAYING:
self._nextFrameT += self._frameInterval
def blit_to_texture(self, target, level, x, y, z, internalformat=None):
'''Draw this image to to the currently bound texture at `target`.
If `internalformat` is specified, glTexImage is used to initialise
the texture; otherwise, glTexSubImage is used to update a region.
'''
data_format = self.format
data_pitch = abs(self._current_pitch)
# Determine pixel format from format string
matrix = None
format, type = self._get_gl_format_and_type(data_format)
if format is None:
if (len(data_format) in (3, 4)
and gl.gl_info.have_extension('GL_ARB_imaging')):
# Construct a color matrix to convert to GL_RGBA
def component_column(component):
try:
pos = 'RGBA'.index(component)
return [0] * pos + [1] + [0] * (3 - pos)
except ValueError:
return [0, 0, 0, 0]
# pad to avoid index exceptions
lookup_format = data_format + 'XXX'
matrix = (component_column(lookup_format[0]) +
component_column(lookup_format[1]) +
component_column(lookup_format[2]) +
component_column(lookup_format[3]))
format = {3: gl.GL_RGB, 4: gl.GL_RGBA}.get(len(data_format))
type = gl.GL_UNSIGNED_BYTE
gl.glMatrixMode(gl.GL_COLOR)
gl.glPushMatrix()
gl.glLoadMatrixf((gl.GLfloat * 16)(*matrix))
else:
# Need to convert data to a standard form
data_format = {
1: 'L',
2: 'LA',
3: 'RGB',
4: 'RGBA'
}.get(len(data_format))
format, type = self._get_gl_format_and_type(data_format)
# Workaround: don't use GL_UNPACK_ROW_LENGTH
if gl.current_context._workaround_unpack_row_length:
data_pitch = self.width * len(data_format)
# Get data in required format (hopefully will be the same format it's
# already in, unless that's an obscure format, upside-down or the
# driver is old).
data = self._convert(data_format, data_pitch)
if data_pitch & 0x1:
alignment = 1
elif data_pitch & 0x2:
alignment = 2
else:
alignment = 4
row_length = data_pitch / len(data_format)
gl.glPushClientAttrib(gl.GL_CLIENT_PIXEL_STORE_BIT)
gl.glPixelStorei(gl.GL_UNPACK_ALIGNMENT, alignment)
gl.glPixelStorei(gl.GL_UNPACK_ROW_LENGTH, row_length)
self._apply_region_unpack()
gl.glTexParameteri(target, gl.GL_TEXTURE_WRAP_S, gl.GL_CLAMP_TO_EDGE)
gl.glTexParameteri(target, gl.GL_TEXTURE_WRAP_T, gl.GL_CLAMP_TO_EDGE)
gl.glTexParameteri(target, gl.GL_TEXTURE_MAG_FILTER, gl.GL_LINEAR)
gl.glTexParameteri(target, gl.GL_TEXTURE_MIN_FILTER, gl.GL_LINEAR)
if target == gl.GL_TEXTURE_3D:
assert not internalformat
gl.glTexSubImage3D(target, level, x, y, z, self.width, self.height,
1, format, type, data)
elif internalformat:
gl.glTexImage2D(target, level, internalformat, self.width,
self.height, 0, format, type, data)
else:
gl.glTexSubImage2D(target, level, x, y, self.width, self.height,
format, type, data)
gl.glPopClientAttrib()
if matrix:
gl.glPopMatrix()
gl.glMatrixMode(gl.GL_MODELVIEW)
def _updateFrameTexture(self):
if self._nextFrameT is None:
# movie has no current position, need to reset the clock
# to zero in order to have the timing logic work
# otherwise the video stream would skip frames until the
# time since creating the movie object has passed
self._videoClock.reset()
self._nextFrameT = 0
# only advance if next frame (half of next retrace rate)
if self._nextFrameT > self.duration:
self._onEos()
elif self._numpyFrame is not None:
if self._nextFrameT > (self._videoClock.getTime() -
old_div(self._retraceInterval, 2.0)):
return None
self._numpyFrame = self._mov.get_frame(self._nextFrameT)
useSubTex = self.useTexSubImage2D
if self._texID is None:
self._texID = GL.GLuint()
GL.glGenTextures(1, ctypes.byref(self._texID))
useSubTex = False
# bind the texture in openGL
GL.glEnable(GL.GL_TEXTURE_2D)
# bind that name to the target
GL.glBindTexture(GL.GL_TEXTURE_2D, self._texID)
# makes the texture map wrap (this is actually default anyway)
GL.glTexParameteri(
GL.GL_TEXTURE_2D, GL.GL_TEXTURE_WRAP_S, GL.GL_REPEAT)
# data from PIL/numpy is packed, but default for GL is 4 bytes
GL.glPixelStorei(GL.GL_UNPACK_ALIGNMENT, 1)
# important if using bits++ because GL_LINEAR
# sometimes extrapolates to pixel vals outside range
if self.interpolate:
GL.glTexParameteri(
GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MAG_FILTER, GL.GL_LINEAR)
GL.glTexParameteri(
GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MIN_FILTER, GL.GL_LINEAR)
if useSubTex is False:
GL.glTexImage2D(GL.GL_TEXTURE_2D, 0, GL.GL_RGB8,
self._numpyFrame.shape[1],
self._numpyFrame.shape[0], 0,
GL.GL_RGB, GL.GL_UNSIGNED_BYTE,
self._numpyFrame.ctypes)
else:
GL.glTexSubImage2D(GL.GL_TEXTURE_2D, 0, 0, 0,
self._numpyFrame.shape[1],
self._numpyFrame.shape[0],
GL.GL_RGB, GL.GL_UNSIGNED_BYTE,
self._numpyFrame.ctypes)
else:
GL.glTexParameteri(
GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MAG_FILTER, GL.GL_NEAREST)
GL.glTexParameteri(
GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MIN_FILTER, GL.GL_NEAREST)
if useSubTex is False:
GL.glTexImage2D(GL.GL_TEXTURE_2D, 0, GL.GL_RGB8,
self._numpyFrame.shape[1],
self._numpyFrame.shape[0], 0,
GL.GL_BGR, GL.GL_UNSIGNED_BYTE,
self._numpyFrame.ctypes)
else:
GL.glTexSubImage2D(GL.GL_TEXTURE_2D, 0, 0, 0,
self._numpyFrame.shape[1],
self._numpyFrame.shape[0],
GL.GL_BGR, GL.GL_UNSIGNED_BYTE,
self._numpyFrame.ctypes)
GL.glTexEnvi(GL.GL_TEXTURE_ENV, GL.GL_TEXTURE_ENV_MODE,
GL.GL_MODULATE) # ?? do we need this - think not!
if not self.status == PAUSED:
self._nextFrameT += self._frameInterval
def blit_to_texture(self, target, level, x, y, z, internalformat=None):
'''Draw this image to to the currently bound texture at `target`.
If `internalformat` is specified, glTexImage is used to initialise
the texture; otherwise, glTexSubImage is used to update a region.
'''
data_format = self.format
data_pitch = abs(self._current_pitch)
# Determine pixel format from format string
matrix = None
format, type = self._get_gl_format_and_type(data_format)
if format is None:
if (len(data_format) in (3, 4) and
gl.gl_info.have_extension('GL_ARB_imaging')):
# Construct a color matrix to convert to GL_RGBA
def component_column(component):
try:
pos = 'RGBA'.index(component)
return [0] * pos + [1] + [0] * (3 - pos)
except ValueError:
return [0, 0, 0, 0]
# pad to avoid index exceptions
lookup_format = data_format + 'XXX'
matrix = (component_column(lookup_format[0]) +
component_column(lookup_format[1]) +
component_column(lookup_format[2]) +
component_column(lookup_format[3]))
format = {
3: gl.GL_RGB,
4: gl.GL_RGBA}.get(len(data_format))
type = gl.GL_UNSIGNED_BYTE
gl.glMatrixMode(gl.GL_COLOR)
gl.glPushMatrix()
gl.glLoadMatrixf((gl.GLfloat * 16)(*matrix))
else:
# Need to convert data to a standard form
data_format = {
1: 'L',
2: 'LA',
3: 'RGB',
4: 'RGBA'}.get(len(data_format))
format, type = self._get_gl_format_and_type(data_format)
# Workaround: don't use GL_UNPACK_ROW_LENGTH
if gl.current_context._workaround_unpack_row_length:
data_pitch = self.width * len(data_format)
# Get data in required format (hopefully will be the same format it's
# already in, unless that's an obscure format, upside-down or the
# driver is old).
data = self._convert(data_format, data_pitch)
if data_pitch & 0x1:
alignment = 1
elif data_pitch & 0x2:
alignment = 2
else:
alignment = 4
row_length = data_pitch / len(data_format)
gl.glPushClientAttrib(gl.GL_CLIENT_PIXEL_STORE_BIT)
gl.glPixelStorei(gl.GL_UNPACK_ALIGNMENT, alignment)
gl.glPixelStorei(gl.GL_UNPACK_ROW_LENGTH, row_length)
self._apply_region_unpack()
gl.glTexParameteri(target, gl.GL_TEXTURE_WRAP_S, gl.GL_CLAMP_TO_EDGE)
gl.glTexParameteri(target, gl.GL_TEXTURE_WRAP_T, gl.GL_CLAMP_TO_EDGE)
gl.glTexParameteri(target, gl.GL_TEXTURE_MAG_FILTER, gl.GL_LINEAR)
gl.glTexParameteri(target, gl.GL_TEXTURE_MIN_FILTER, gl.GL_LINEAR)
if target == gl.GL_TEXTURE_3D:
assert not internalformat
gl.glTexSubImage3D(target, level,
x, y, z,
self.width, self.height, 1,
format, type,
data)
elif internalformat:
gl.glTexImage2D(target, level,
internalformat,
self.width, self.height,
0,
format, type,
data)
else:
gl.glTexSubImage2D(target, level,
x, y,
self.width, self.height,
format, type,
data)
gl.glPopClientAttrib()
if matrix:
gl.glPopMatrix()
gl.glMatrixMode(gl.GL_MODELVIEW)
