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remove sixel stub code 

Remove stub code that was used for an experiment of adding sixel code to st
from the commit f7398434.
This commit is contained in:
bakkeby 2020-06-25 12:38:19 +02:00
parent a6344d3241
commit 5a12b0dfa1
1 changed files with 5 additions and 21 deletions
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26
st.c
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@ -59,7 +59,6 @@ enum term_mode {
MODE_ECHO = 1 << 4,
MODE_PRINT = 1 << 5,
MODE_UTF8 = 1 << 6,
MODE_SIXEL = 1 << 7,
};
enum cursor_movement {
@ -86,12 +85,11 @@ enum charset {
enum escape_state {
ESC_START = 1,
ESC_CSI = 2,
ESC_STR = 4, /* OSC, PM, APC */
ESC_STR = 4, /* DCS, OSC, PM, APC */
ESC_ALTCHARSET = 8,
ESC_STR_END = 16, /* a final string was encountered */
ESC_TEST = 32, /* Enter in test mode */
ESC_UTF8 = 64,
ESC_DCS =128,
};
typedef struct {
@ -2253,12 +2251,9 @@ tdectest(char c)
void
tstrsequence(uchar c)
{
strreset();
switch (c) {
case 0x90: /* DCS -- Device Control String */
c = 'P';
term.esc |= ESC_DCS;
break;
case 0x9f: /* APC -- Application Program Command */
c = '_';
@ -2270,6 +2265,7 @@ tstrsequence(uchar c)
c = ']';
break;
}
strreset();
strescseq.type = c;
term.esc |= ESC_STR;
}
@ -2475,7 +2471,7 @@ tputc(Rune u)
Glyph *gp;
control = ISCONTROL(u);
if (u < 127 || !IS_SET(MODE_UTF8 | MODE_SIXEL)) {
if (u < 127 || !IS_SET(MODE_UTF8)) {
c[0] = u;
width = len = 1;
} else {
@ -2496,23 +2492,11 @@ tputc(Rune u)
if (term.esc & ESC_STR) {
if (u == '\a' || u == 030 || u == 032 || u == 033 ||
ISCONTROLC1(u)) {
term.esc &= ~(ESC_START|ESC_STR|ESC_DCS);
if (IS_SET(MODE_SIXEL)) {
/* TODO: render sixel */;
term.mode &= ~MODE_SIXEL;
return;
}
term.esc &= ~(ESC_START|ESC_STR);
term.esc |= ESC_STR_END;
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) {
/*
* Here is a bug in terminals. If the user never sends
@ -2624,7 +2608,7 @@ twrite(const char *buf, int buflen, int show_ctrl)
int n;
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 */
charsize = utf8decode(buf + n, &u, buflen - n);
if (charsize == 0)