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sixel: unhook: make sure image height is within bounds

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When we allocate the backing buffer, the number of allocated rows is a
multiple of 6.

When persisting the image, make sure its height does not exceed the
current maximum height.
This commit is contained in:
Daniel Eklöf 2021-03-06 21:31:16 +01:00
parent add30a38f3
commit 8ec0f15a34
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1 changed files with 4 additions and 0 deletions
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sixel.c
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@ -695,6 +695,10 @@ sixel_reflow(struct terminal *term)
void void
sixel_unhook(struct terminal *term) sixel_unhook(struct terminal *term)
{ {
/* The internal buffer always as a row number that is a multiple of 6 */
term->sixel.image.height = min(
term->sixel.image.height, term->sixel.max_height);
int pixel_row_idx = 0; int pixel_row_idx = 0;
int pixel_rows_left = term->sixel.image.height; int pixel_rows_left = term->sixel.image.height;
const int stride = term->sixel.image.width * sizeof(uint32_t); const int stride = term->sixel.image.width * sizeof(uint32_t);