@ -26,6 +26,7 @@ extern "C" {
# include <netinet/in.h>
# include "notcurses/notcurses.h"
# include "compat/compat.h"
# include "termdesc.h"
# include "egcpool.h"
# define API __attribute__((visibility("default")))
@ -397,102 +398,6 @@ typedef struct nctabbed {
nctabbed_options opts ; // copied in nctabbed_create()
} nctabbed ;
// terminfo cache. FIXME shrink this and kill a pointer deref by writing them
// all into one buffer, and storing 1-biased indices with 0 for NULL.
typedef struct tinfo {
unsigned colors ; // number of colors terminfo reported usable for this screen
char * sgr ; // set many graphics properties at once
char * sgr0 ; // restore default presentation properties
char * setaf ; // set foreground color (ANSI)
char * setab ; // set background color (ANSI)
char * op ; // set foreground and background color to default
char * fgop ; // set foreground to default
char * bgop ; // set background to default
char * cup ; // move cursor
char * cuu ; // move N cells up
char * cub ; // move N cells left
char * cuf ; // move N cells right
char * cud ; // move N cells down
char * cuf1 ; // move 1 cell right
char * home ; // home cursor
char * civis ; // hide cursor
char * cnorm ; // restore cursor to default state
char * hpa ; // horizontal position adjusment (move cursor on row)
char * vpa ; // vertical position adjustment (move cursor on column)
char * standout ; // NCSTYLE_STANDOUT
char * uline ; // NCSTYLE_UNDERLINK
char * reverse ; // NCSTYLE_REVERSE
char * blink ; // NCSTYLE_BLINK
char * dim ; // NCSTYLE_DIM
char * bold ; // NCSTYLE_BOLD
char * italics ; // NCSTYLE_ITALIC
char * italoff ; // NCSTYLE_ITALIC (disable)
char * struck ; // NCSTYLE_STRUCK
char * struckoff ; // NCSTYLE_STRUCK (disable)
char * initc ; // set a palette entry's RGB value
char * oc ; // restore original colors
char * clearscr ; // erase screen and home cursor
char * sc ; // push the cursor location onto the stack
char * rc ; // pop the cursor location off the stack
char * smkx ; // enter keypad transmit mode (keypad_xmit)
char * rmkx ; // leave keypad transmit mode (keypad_local)
char * getm ; // get mouse events
char * smcup ; // enter alternate mode
char * rmcup ; // restore primary mode
// we use the cell's size in pixels for pixel blitting. this information can
// be acquired on all terminals with pixel support.
int cellpixy ; // cell pixel height, might be 0
int cellpixx ; // cell pixel width, might be 0
// kitty interprets an RGB background that matches the default background
// color *as* the default background, meaning it'll be translucent if
// background_opaque is in use. detect this, and avoid the default if so.
// bg_collides_default is either 0x0000000 or 0x1RRGGBB.
uint32_t bg_collides_default ;
// sprixel support. there are several different sprixel protocols, of
// which we support sixel and kitty. the kitty protocol is used based
// on TERM heuristics. otherwise, we attempt to detect sixel support, and
// query the details of the implementation.
pthread_mutex_t pixel_query ; // only query for pixel support once
int color_registers ; // sixel color registers (post pixel_query_done)
int sixel_maxx , sixel_maxy ; // sixel size maxima (post pixel_query_done)
int ( * pixel_destroy ) ( const struct notcurses * nc , const struct ncpile * p , FILE * out , sprixel * s ) ;
// wipe out a cell's worth of pixels from within a sprixel. for sixel, this
// means leaving out the pixels (and likely resizes the string). for kitty,
// this means dialing down their alpha to 0 (in equivalent space).
int ( * pixel_wipe ) ( sprixel * s , int y , int x ) ;
// perform the inverse of pixel_wipe, restoring an annihilated sprixcell.
int ( * pixel_rebuild ) ( sprixel * s , int y , int x , uint8_t * auxvec ) ;
int ( * pixel_remove ) ( int id , FILE * out ) ; // kitty only, issue actual delete command
int ( * pixel_init ) ( int fd ) ; // called when support is detected
int ( * pixel_draw ) ( const struct ncpile * p , sprixel * s , FILE * out ) ;
int ( * pixel_shutdown ) ( int fd ) ; // called during context shutdown
int ( * pixel_clear_all ) ( int fd ) ; // called during startup, kitty only
int sprixel_scale_height ; // sprixel must be a multiple of this many rows
bool bitmap_supported ; // do we support bitmaps (post pixel_query_done)?
bool sprixel_cursor_hack ; // do sprixels reset the cursor? (mlterm)
bool pixel_query_done ; // have we yet performed pixel query?
// alacritty went rather off the reservation for their sixel support. they
// reply to DSA with CSI?6c, meaning VT102, but no VT102 had Sixel support,
// so if the TERM variable contains "alacritty", *and* we get VT102, we go
// ahead and query XTSMGRAPHICS.
bool alacritty_sixel_hack ;
bool RGBflag ; // "RGB" flag for 24bpc truecolor
bool CCCflag ; // "CCC" flag for palette set capability
bool BCEflag ; // "BCE" flag for erases with background color
bool AMflag ; // "AM" flag for automatic movement to next line
// assigned based off nl_langinfo() in notcurses_core_init()
bool utf8 ; // are we using utf-8 encoding, as hoped?
// these are assigned wholly through TERM-based heuristics
bool quadrants ; // do we have (good, vetted) Unicode 1 quadrant support?
bool sextants ; // do we have (good, vetted) Unicode 13 sextant support?
bool braille ; // do we have Braille support? (linux console does not)
} tinfo ;
typedef struct ncinputlayer {
int ttyinfd ; // file descriptor for processing input
unsigned char inputbuf [ BUFSIZ ] ;
nick black
3 years ago
committed by
Nick Black