reven2.framebuffer.Framebuffer

class documentation

class Framebuffer:

Get access to the framebuffer at a Context.

Method	`__init__`	To get a `Framebuffer` from a `Context` use `Context.framebuffer`.
Method	`__repr__`	Returns the "official" string representation of this instance.
Method	`__str__`	Returns the nicely printable string representation of this instance.
Method	`image`	Get a screenshot from the `Context`.
Property	`memory_range`	Get the `MemoryRange` of `PhysicalAddress`es used by the framebuffer.
Method	`_read_raw_data`	Read the framebuffer data from the memory into a bytearray.
Instance Variable	`_context`	Undocumented
Instance Variable	`_fb`	Undocumented
Property	`_display_size`	The framebuffer display size in pixels, as a tuple (width, height).
Property	`_pil_decoder_mode`	Get the decoder mode for `PIL.Image.frombytes` or `None` if the mode is not supported.

def __init__(self, context):

To get a Framebuffer from a Context use Context.framebuffer.

Examples

>>> fb = trace.first_context.framebuffer
>>> image = fb.image()
>>> image.show()
>>> image.save("/tmp/framebuffer.png")

Information

Parameters
context:`_Context`	`Context` from the trace.
Raises
`RuntimeError`	if the framebuffer information is missing.
`RuntimeError`	if the framebuffer is in text mode.

def __repr__(self):

Returns the "official" string representation of this instance.

Returns
`str`	Undocumented

def __str__(self):

Returns the nicely printable string representation of this instance.

Returns
`str`	Undocumented

def image(self):

Get a screenshot from the Context.

Read the framebuffer content from the memory to generate an image.

Examples

>>> image = trace.first_context.framebuffer.image()
>>> # display the image in a Jupyter Notebook
>>> display(image)
>>> # save the image to a file
>>> image.save("/tmp/framebuffer.png")
>>> # open the image in the system image viewer
>>> image.show()

Information

Returns
`PIL.Image.Image`	a screenshot from the trace as a RGB `PIL.Image.Image`
Raises
`RuntimeError`	if the framebuffer mode is not supported.
`RuntimeError`	if the memory cannot be read.

@property
memory_range: _MemoryRange =

Get the MemoryRange of PhysicalAddresses used by the framebuffer.

def _read_raw_data(self):

Read the framebuffer data from the memory into a bytearray.

Returns
`bytearray`	Undocumented
Raises
`RuntimeError`	if the memory cannot be read.

_context =

Undocumented

_fb =

Undocumented

@property
_display_size: tuple[int, int] =

The framebuffer display size in pixels, as a tuple (width, height).

@property
_pil_decoder_mode: _Optional[str] =

Get the decoder mode for PIL.Image.frombytes or None if the mode is not supported.