Add trans filter

This commit is contained in:
femsci 2022-11-15 21:14:09 +01:00
parent 3eb9d58037
commit 728ddc4d59
Signed by: femsci
GPG key ID: 08F7911F0E650C67
2 changed files with 30 additions and 0 deletions

View file

@ -29,6 +29,7 @@
static void filter_crop(context_t *);
static void filter_rainbow(context_t *);
static void filter_trans(context_t *);
static void filter_metal(context_t *);
static void filter_flip(context_t *);
static void filter_flop(context_t *);
@ -47,6 +48,7 @@ const lookup[] =
{
{ "crop", filter_crop, "crop unused blanks" },
{ "rainbow", filter_rainbow, "add a rainbow colour effect" },
{ "trans", filter_trans, "trans rights uwu~"},
{ "metal", filter_metal, "add a metallic colour effect" },
{ "flip", filter_flip, "flip horizontally" },
{ "flop", filter_flop, "flip vertically" },
@ -211,6 +213,29 @@ static void filter_rainbow(context_t *cx)
}
}
static void filter_trans(context_t *cx)
{
static unsigned char const colors[] =
{
CACA_LIGHTCYAN, CACA_LIGHTRED, CACA_WHITE, CACA_LIGHTRED, CACA_LIGHTCYAN
};
unsigned int x, y, w, h;
w = caca_get_canvas_width(cx->torender);
h = caca_get_canvas_height(cx->torender);
for(x = 0; x < w; x++)
for(y = 0; y < h; y++)
{
unsigned long int ch = caca_get_char(cx->torender, x, y);
if(ch != (unsigned char)' ')
{
caca_set_color_ansi(cx->torender, colors[(y - 2) % 5], CACA_TRANSPARENT);
caca_put_char(cx->torender, x, y, ch);
}
}
}
static void filter_flip(context_t *cx)
{
caca_flip(cx->torender);

View file

@ -66,6 +66,7 @@ int main(int argc, char *argv[])
{ "termwidth", 0, NULL, 't' },
{ "filter", 1, NULL, 'F' },
{ "gay", 0, NULL, 130 },
{ "trans", 0, NULL, 160 },
{ "metal", 0, NULL, 131 },
{ "rainbow", 0, NULL, 132 },
{ "export", 1, NULL, 'E' },
@ -114,6 +115,9 @@ int main(int argc, char *argv[])
case 132: /* --rainbow */
filter_add(cx, "rainbow");
break;
case 160:
filter_add(cx, "trans");
break;
case 'w': /* --width */
cx->term_width = atoi(caca_optarg);
break;
@ -217,6 +221,7 @@ int main(int argc, char *argv[])
" -t, --termwidth adapt to terminal's width\n" \
" -F, --filter <filters> apply one or several filters to the text\n" \
" -F, --filter list list available filters\n" \
" --trans traaaaaaaa filter (same as -F trans)\n" \
" --rainbow rainbow filter (same as -F rainbow)\n" \
" --metal metal filter (same as -F metal)\n" \
" -E, --export <format> select export format\n" \