History log of /gem5/src/base/vnc/SConscript
Revision Date Author Comments
# 10839:10cac0f0f419 23-May-2015 Andreas Sandberg <andreas.sandberg@arm.com>

base: Redesign internal frame buffer handling

Currently, frame buffer handling in gem5 is quite ad hoc. In practice,
we pass around naked pointers to raw pixel data and expect consumers
to convert frame buffers using the (broken) VideoConverter.

This changeset completely redesigns the way we handle frame buffers
internally. In summary, it fixes several color conversion bugs, adds
support for more color formats (e.g., big endian), and makes the code
base easier to follow.

In the new world, gem5 always represents pixel data using the Pixel
struct when pixels need to be passed between different classes (e.g.,
a display controller and the VNC server). Producers of entire frames
(e.g., display controllers) should use the FrameBuffer class to
represent a frame.

Frame producers are expected to create one instance of the FrameBuffer
class in their constructors and register it with its consumers
once. Consumers are expected to check the dimensions of the frame
buffer when they consume it.

Conversion between the external representation and the internal
representation is supported for all common "true color" RGB formats of
up to 32-bit color depth. The external pixel representation is
expected to be between 1 and 4 bytes in either big endian or little
endian. Color channels are assumed to be contiguous ranges of bits
within each pixel word. The external pixel value is scaled to an 8-bit
internal representation using a floating multiplication to map it to
the entire 8-bit range.


# 9330:4a3269a11230 02-Nov-2012 Chander Sudanthi <chander.sudanthi@arm.com>

base: split out the VncServer into a VncInput and Server classes

This patch adds a VncInput base class which VncServer inherits from.
Another class can implement the same interface and be used instead
of the VncServer, for example a class that replays Vnc traffic.


# 8739:925f15f96322 30-Sep-2011 Gabe Black <gblack@eecs.umich.edu>

SE/FS: Build the devices in SE mode.


# 8335:9228e00459d4 02-Jun-2011 Nathan Binkert <nate@binkert.org>

scons: rename TraceFlags to DebugFlags


# 7949:e59dac494020 11-Feb-2011 Ali Saidi <Ali.Saidi@ARM.com>

VNC: Add VNC server to M5