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[ansi] Optimize write

This commit is contained in:
Behdad Esfahbod 2022-12-29 20:39:02 -07:00
parent a35f8e340b
commit 962d4925b2
1 changed files with 12 additions and 9 deletions
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21
util/ansi-print.hh
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@ -384,7 +384,6 @@ ansi_print_image_rgb24 (const uint32_t *data,
void *closure)
{
image_t image (width, height, data, stride);
char buf[16];
unsigned int rows = (height + CELL_H - 1) / CELL_H;
unsigned int cols = (width + CELL_W - 1) / CELL_W;
@ -401,8 +400,9 @@ ansi_print_image_rgb24 (const uint32_t *data,
{
if (last_bg != bi.bg)
{
snprintf (buf, sizeof (buf), "\e[%dm", 40 + bi.bg);
write_func (closure, (unsigned char *) buf, strlen (buf));
char buf[] = "\e[40m";
buf[3] += bi.bg;
write_func (closure, (unsigned char *) buf, 5);
last_bg = bi.bg;
}
write_func (closure, (unsigned char *) " ", 1);
@ -414,8 +414,10 @@ ansi_print_image_rgb24 (const uint32_t *data,
{
if (last_bg != bi.fg || last_fg != bi.bg)
{
snprintf (buf, sizeof (buf), "\e[%d;%dm", 30 + bi.bg, 40 + bi.fg);
write_func (closure, (unsigned char *) buf, strlen (buf));
char buf[] = "\e[30;40m";
buf[3] += bi.bg;
buf[6] += bi.fg;
write_func (closure, (unsigned char *) buf, 8);
last_bg = bi.fg;
last_fg = bi.bg;
}
@ -424,8 +426,10 @@ ansi_print_image_rgb24 (const uint32_t *data,
{
if (last_bg != bi.bg || last_fg != bi.fg)
{
snprintf (buf, sizeof (buf), "\e[%d;%dm", 40 + bi.bg, 30 + bi.fg);
write_func (closure, (unsigned char *) buf, strlen (buf));
char buf[] = "\e[40;30m";
buf[3] += bi.bg;
buf[6] += bi.fg;
write_func (closure, (unsigned char *) buf, 8);
last_bg = bi.bg;
last_fg = bi.fg;
}
@ -433,8 +437,7 @@ ansi_print_image_rgb24 (const uint32_t *data,
write_func (closure, (unsigned char *) c, strlen (c));
}
}
snprintf (buf, sizeof (buf), "\e[0m\n"); /* Reset */
write_func (closure, (unsigned char *) buf, strlen (buf));
write_func (closure, (unsigned char *) "\e[0m\n", 5); /* Reset */
last_bg = last_fg = -1;
}
}