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Fix #8301

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Crash is fixed however corruption of cells remains, that's going to be
harder to track down.
This commit is contained in:
Kovid Goyal
2025-02-10 13:51:50 +05:30
parent 54a42b564e
commit 5ebdfe17d9
1 changed files with 3 additions and 1 deletions
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4
kitty/history.c
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@@ -24,12 +24,14 @@ add_segment(HistoryBuf *self, index_type num) {
const size_t segment_size = cpu_cells_size + gpu_cells_size + SEGMENT_SIZE * sizeof(LineAttrs);
char *mem = calloc(num, segment_size);
if (!mem) fatal("Out of memory allocating new history buffer segment");
self->segments[self->num_segments].mem = mem;
char *needs_free = mem;
for (HistoryBufSegment *s = self->segments + self->num_segments; s < self->segments + self->num_segments + num; s++, mem += segment_size) {
s->cpu_cells = (CPUCell*)mem;
s->gpu_cells = (GPUCell*)(((uint8_t*)s->cpu_cells) + cpu_cells_size);
s->line_attrs = (LineAttrs*)(((uint8_t*)s->gpu_cells) + gpu_cells_size);
s->mem = NULL;
}
self->segments[self->num_segments].mem = needs_free;
self->num_segments += num;
}