nuttx-apps/graphics/pdcurs34/pdcurses/Kconfig
Nathan Hartman b2a3ba57ff Fix typos
2019-09-11 08:59:08 -06:00

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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.
#
config PDCURSES_WIDE
bool "Wide character support"
default n
depends on EXPERIMENTAL
config PDCURSES_FORCE_UTF8
bool "Force UTF8 character set"
default n
depends on PDCURSES_WIDE
config PDCURSES_CHTYPE_LONG
bool "32-bit chtype"
default n
config PDCURSES_DEBUG
bool "Enable pdcurses debug output"
default n
config PDCURSES_PANEL_DEBUG
bool "Enable special debug output for panels"
default n
config PDCURSES_MULTITHREAD
bool "Enable code for running pdcurses from multiple threads (removes global variables)."
default n
---help---
The base pdcurses code uses global and function static variables,
preventing multiple tasks from using pdcurses in a FLAT model.
This option collects all those variables into a thread specific
dynamically allocated context, enabling mulitple tasks to use
pdcurses concurrently at the cost of a slight execution speed
penalty for performing per task context lookup.
config PDCURSES_MULTITHREAD_HASH
bool "Use PID HASH lookup for thread specific pdcurses context data."
depends on PDCURSES_MULTITHREAD
default n
---help---
Without this option, the per task pdcurses logic uses a linked list
of allocated contexts, keeping RAM usage to a minimum at the expense
of execution time for semaphore locking / unlocking and list traversal.
This option enables a PID hash lookup option which eliminates the
need for this extra logic by using a statically allocated array of
context pointers whose size is dictated by the MAX_TASKS config variable.
Enabling this option allows simple hash calculation and array lookup at
the expense of extra RAM usage for the static array of context pointers.
config PDCURSES_SHORT_ALTCHARSET
bool "Allow alternate character set with short 16-bit chtype"
depends on !PDCURSES_CHTYPE_LONG && !PDCURSES_FORCE_UTF8
default y
---help---
The alternate character set includes graphic line drawing characters
used for drawing box borders. When using 16-bit chtype, the base
pdcurses does not define a bit for A_ALTCHARSET. This option uses
the MSB of the 8-bit character code as A_ALTCHARSET to enable line
drawing characters.
Enabling this means limiting the usable normal character set to the
base 7-bit ASCII characters, however for most VT-100 / ANSI emulators,
the upper bits are either not defined or not critical.