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Clean up image support and add regression tests

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This commit is contained in:
Michael Grant
2026-10-04 11:44:00 +01:00
parent 91441d6ef2
commit 90ee6a89cc
31 changed files with 465 additions and 633 deletions
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13
image-fallback.c
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@@ -216,6 +216,7 @@ image_glyph_block_key(enum image_glyph_detail detail, u_int mask)
TTY_ACS_IMAGE_QUADRANT_UPPER_RIGHT_LOWER_LEFT_LOWER_RIGHT,
TTY_ACS_IMAGE_BLOCK
};
u_char key;
if (detail == IMAGE_GLYPH_HALF)
return (half[mask]);
@@ -229,7 +230,8 @@ image_glyph_block_key(enum image_glyph_detail detail, u_int mask)
return (TTY_ACS_IMAGE_HALF_RIGHT);
if (mask == 63)
return (TTY_ACS_IMAGE_BLOCK);
return (tty_acs_image_sextant(mask));
key = tty_acs_image_sextant(mask);
return (key);
}
static u_char *
@@ -243,9 +245,8 @@ image_glyph_make_shades(struct image *im, u_int levels)
int reverse;
u_char *result;
if (data == NULL) {
if (data == NULL)
data = im->fallback_data = xcalloc(1, sizeof *data);
}
result = (levels == 5 ? data->shade5 : data->shade8);
if (result != NULL)
return (result);
@@ -354,8 +355,7 @@ image_glyph_block(struct tty *tty, struct image *im, u_int x, u_int y,
u_char key;
columns = (detail == IMAGE_GLYPH_HALF ? 1 : 2);
rows = (detail == IMAGE_GLYPH_HALF ? 2 :
detail == IMAGE_GLYPH_QUADRANT ? 2 : 3);
rows = (detail == IMAGE_GLYPH_SEXTANT ? 3 : 2);
i = 0;
for (sy = 0; sy < rows; sy++) {
for (sx = 0; sx < columns; sx++) {
@@ -399,8 +399,7 @@ image_glyph_block(struct tty *tty, struct image *im, u_int x, u_int y,
void
image_get_fallback_cell(struct tty *tty, struct image *im, u_int x, u_int y,
const struct grid_cell *gc, struct grid_cell *out,
__unused const struct tty_style_ctx *style_ctx)
const struct grid_cell *gc, struct grid_cell *out)
{
static const char ascii[] = " .:-=+*#%@";
static const u_char shades[5] = { 0, TTY_ACS_IMAGE_SHADE_LIGHT,