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vnc: palette: use a pool to reduce memory allocations

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We now that the palette will never have more than 256
elements. Let's use a pool to reduce malloc calls.

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Corentin Chary 2011-02-04 09:05:58 +01:00 • committed by Anthony Liguori
parent ce702e93b0
commit e31e3694af
2 changed files with 4 additions and 17 deletions
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18
ui/vnc-palette.c
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@ -63,23 +63,9 @@ VncPalette *palette_new(size_t max, int bpp)
void palette_destroy(VncPalette *palette)
{
int i;
if (palette == NULL) {
return ;
qemu_free(palette);
}
for (i = 0; i < VNC_PALETTE_HASH_SIZE; i++) {
VncPaletteEntry *entry = QLIST_FIRST(&palette->table[i]);
while (entry) {
VncPaletteEntry *tmp = QLIST_NEXT(entry, next);
QLIST_REMOVE(entry, next);
qemu_free(entry);
entry = tmp;
}
}
qemu_free(palette);
}
int palette_put(VncPalette *palette, uint32_t color)
@ -97,7 +83,7 @@ int palette_put(VncPalette *palette, uint32_t color)
if (!entry) {
VncPaletteEntry *entry;
entry = qemu_mallocz(sizeof(*entry));
entry = &palette->pool[palette->size];
entry->color = color;
entry->idx = idx;
QLIST_INSERT_HEAD(&palette->table[hash], entry, next);