nuttx/graphics/vnc/server/Kconfig

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#
# For a description of the syntax of this configuration file,
# see the file kconfig-language.txt in the NuttX tools repository.
#
menuconfig VNCSERVER
bool "VNC server"
default n
depends on NET_TCP && !NX_LCDDRIVER && EXPERIMENTAL
select NET_TCP_READAHEAD
select NX_UPDATE
---help---
Enable support for a VNC Remote Frame Buffer (RFB) server.
if VNCSERVER
choice
prompt "VNC server protocol"
default VNCSERVER_PROTO3p8
config VNCSERVER_PROTO3p3
bool "Version 3.3"
depends on EXPERIMENTAL
config VNCSERVER_PROTO3p8
bool "Version 3.8"
endchoice # VNC server protocol
config VNCSERVER_NDISPLAYS
int "Number of displays"
default 1
range 1 99
---help---
Specifies the number of RFB displays supported by the server.
Normally this should be one.
config VNCSERVER_PRIO
int "VNC server task priority"
default 100
config VNCSERVER_STACKSIZE
int "VNC server stack size"
default 2048
config VNCSERVER_UPDATER_PRIO
int "VNC updater thread priority"
default 100
config VNCSERVER_UPDATER_STACKSIZE
int "VNC updater thread stack size"
default 2048
choice
prompt "VNC color format"
default VNCSERVER_COLORFMT_RGB16
config VNCSERVER_COLORFMT_RGB16
bool "RGB16 5:6:5"
config VNCSERVER_COLORFMT_RGB32
bool "RGB24 (32-bit) or RGB32 (w/tranparency)"
endchoice # VNC color format
config VNCSERVER_SCREENWIDTH
int "Framebuffer width (pixels)"
default 320
---help---
This setting defines the width in pixels of the local framebuffer.
Memory usage: PixelWidth * ScreenWidth * ScreenHeight
So, for example, a 320x240 screen with RGB16 pixels would require
2x320x240 = 150 KB of RAM.
config VNCSERVER_SCREENHEIGHT
int "Framebuffer height (rows)"
default 240
---help---
This setting defines the height in rows of the local framebuffer.
Memory usage: PixelWidth * ScreenWidth * ScreenHeight
So, for example, a 320x240 screen with RGB16 pixels would require
2x320x240 = 150 KB of RAM.
config VNCSERVER_NUPDATES
int "Number of pre-allocate update structures"
default 48
---help---
This setting provides the number of pre-allocated update structures
that will be used. Dynamic memory allocations are never made. In
the likely event that we run out of update structures, the graphics
subsystem will pause and wait for the next structures to be released.
Overhead is 12-bytes per update structure.
config VNCSERVER_UPDATE_BUFSIZE
int "Max update buffer size (bytes)"
default 1024
---help---
A single buffer is pre-allocated for rendering updates. This
setting specifies the maximum in bytes of that update buffer. For
example, an update buffers of 32 pixels at 8-bits per pixel and
32-rows would yield a buffer size of 1024!
Ideally, this buffer should fit in one network packet to avoid
accessive re-assembly of partial TCP packets.
config VNCSERVER_KBDENCODE
bool "Encode keyboard input"
default n
depends on NXTERM_NXKBDIN
---help---
Use a special encoding of keyboard characters as defined in
include/nuttx/input/kbd_coded.h.
config VNCSERVER_INBUFFER_SIZE
int "Input buffer size
default 80
endif # VNCSERVER