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remove sixel stub code

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Remove stub code that was used for an experiment of adding sixel code to st
from the commit f7398434.
This commit is contained in:
Hiltjo Posthuma 2020-06-17 22:05:48 +02:00
parent 818ec746f4
commit f74a9df6e1
1 changed files with 5 additions and 21 deletions
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26
st.c
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@ -51,7 +51,6 @@ enum term_mode {
MODE_ECHO = 1 << 4, MODE_ECHO = 1 << 4,
MODE_PRINT = 1 << 5, MODE_PRINT = 1 << 5,
MODE_UTF8 = 1 << 6, MODE_UTF8 = 1 << 6,
MODE_SIXEL = 1 << 7,
}; };
enum cursor_movement { enum cursor_movement {
@ -78,12 +77,11 @@ enum charset {
enum escape_state { enum escape_state {
ESC_START = 1, ESC_START = 1,
ESC_CSI = 2, ESC_CSI = 2,
ESC_STR = 4, /* OSC, PM, APC */ ESC_STR = 4, /* DCS, OSC, PM, APC */
ESC_ALTCHARSET = 8, ESC_ALTCHARSET = 8,
ESC_STR_END = 16, /* a final string was encountered */ ESC_STR_END = 16, /* a final string was encountered */
ESC_TEST = 32, /* Enter in test mode */ ESC_TEST = 32, /* Enter in test mode */
ESC_UTF8 = 64, ESC_UTF8 = 64,
ESC_DCS =128,
}; };
typedef struct { typedef struct {
@ -2090,12 +2088,9 @@ tdectest(char c)
void void
tstrsequence(uchar c) tstrsequence(uchar c)
{ {
strreset();
switch (c) { switch (c) {
case 0x90: /* DCS -- Device Control String */ case 0x90: /* DCS -- Device Control String */
c = 'P'; c = 'P';
term.esc |= ESC_DCS;
break; break;
case 0x9f: /* APC -- Application Program Command */ case 0x9f: /* APC -- Application Program Command */
c = '_'; c = '_';
@ -2107,6 +2102,7 @@ tstrsequence(uchar c)
c = ']'; c = ']';
break; break;
} }
strreset();
strescseq.type = c; strescseq.type = c;
term.esc |= ESC_STR; term.esc |= ESC_STR;
} }
@ -2304,7 +2300,7 @@ tputc(Rune u)
Glyph *gp; Glyph *gp;
control = ISCONTROL(u); control = ISCONTROL(u);
if (u < 127 || !IS_SET(MODE_UTF8 | MODE_SIXEL)) { if (u < 127 || !IS_SET(MODE_UTF8)) {
c[0] = u; c[0] = u;
width = len = 1; width = len = 1;
} else { } else {
@ -2325,23 +2321,11 @@ tputc(Rune u)
if (term.esc & ESC_STR) { if (term.esc & ESC_STR) {
if (u == '\a' || u == 030 || u == 032 || u == 033 || if (u == '\a' || u == 030 || u == 032 || u == 033 ||
ISCONTROLC1(u)) { ISCONTROLC1(u)) {
term.esc &= ~(ESC_START|ESC_STR|ESC_DCS); term.esc &= ~(ESC_START|ESC_STR);
if (IS_SET(MODE_SIXEL)) {
/* TODO: render sixel */;
term.mode &= ~MODE_SIXEL;
return;
}
term.esc |= ESC_STR_END; term.esc |= ESC_STR_END;
goto check_control_code; goto check_control_code;
} }
if (IS_SET(MODE_SIXEL)) {
/* TODO: implement sixel mode */
return;
}
if (term.esc&ESC_DCS && strescseq.len == 0 && u == 'q')
term.mode |= MODE_SIXEL;
if (strescseq.len+len >= strescseq.siz) { if (strescseq.len+len >= strescseq.siz) {
/* /*
* Here is a bug in terminals. If the user never sends * Here is a bug in terminals. If the user never sends
@ -2453,7 +2437,7 @@ twrite(const char *buf, int buflen, int show_ctrl)
int n; int n;
for (n = 0; n < buflen; n += charsize) { for (n = 0; n < buflen; n += charsize) {
if (IS_SET(MODE_UTF8) && !IS_SET(MODE_SIXEL)) { if (IS_SET(MODE_UTF8)) {
/* process a complete utf8 char */ /* process a complete utf8 char */
charsize = utf8decode(buf + n, &u, buflen - n); charsize = utf8decode(buf + n, &u, buflen - n);
if (charsize == 0) if (charsize == 0)