There's no need to align after the end of the temporary destination buffer,
and each of the remaining aligns can only add a maximum of 15 bytes to the
space requirement. This permits some edge cases to use the stack buffer
where previously it would have deduced that a heap buffer was required.
---
pixman/pixman-general.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/pixman/pixman-general.c b/pixman/pixman-general.c
index 7cdea29..c8f272b 100644
--- a/pixman/pixman-general.c
+++ b/pixman/pixman-general.c
@@ -159,10 +159,10 @@ general_composite_rect (pixman_implementation_t *imp,
mask_buffer = ALIGN (src_buffer + width * Bpp);
dest_buffer = ALIGN (mask_buffer + width * Bpp);
- if (ALIGN (dest_buffer + width * Bpp) >
+ if (dest_buffer + width * Bpp >
scanline_buffer + sizeof (stack_scanline_buffer))
{
- scanline_buffer = pixman_malloc_ab_plus_c (width, Bpp * 3, 32 * 3);
+ scanline_buffer = pixman_malloc_ab_plus_c (width, Bpp * 3, 15 * 3);
if (!scanline_buffer)
return;
--
1.7.5.4
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