36 lines
1.4 KiB
Diff
36 lines
1.4 KiB
Diff
|
Reduce the stack footprint of pixman's function
|
||
|
|
general_composite_rect() which allocates a large buffer
|
||
|
|
`stack_scanline_buffer`. Make it `static __thread` instead.
|
||
|
|
|
||
|
|
--- pixman/pixman-general.c 2015-12-27 21:37:37.000000000 +0100
|
||
|
|
+++ pixman/pixman-general.c 2016-05-05 12:24:47.346661080 +0200
|
||
|
|
@@ -128,8 +128,8 @@
|
||
|
|
pixman_composite_info_t *info)
|
||
|
|
{
|
||
|
|
PIXMAN_COMPOSITE_ARGS (info);
|
||
|
|
- uint8_t stack_scanline_buffer[3 * SCANLINE_BUFFER_LENGTH];
|
||
|
|
- uint8_t *scanline_buffer = (uint8_t *) stack_scanline_buffer;
|
||
|
|
+ static __thread uint8_t static_scanline_buffer[3 * SCANLINE_BUFFER_LENGTH];
|
||
|
|
+ uint8_t *scanline_buffer = (uint8_t *) static_scanline_buffer;
|
||
|
|
uint8_t *src_buffer, *mask_buffer, *dest_buffer;
|
||
|
|
pixman_iter_t src_iter, mask_iter, dest_iter;
|
||
|
|
pixman_combine_32_func_t compose;
|
||
|
|
@@ -158,7 +158,7 @@
|
||
|
|
if (width <= 0 || _pixman_multiply_overflows_int (width, Bpp * 3))
|
||
|
|
return;
|
||
|
|
|
||
|
|
- if (width * Bpp * 3 > sizeof (stack_scanline_buffer) - 15 * 3)
|
||
|
|
+ if (width * Bpp * 3 > sizeof (static_scanline_buffer) - 15 * 3)
|
||
|
|
{
|
||
|
|
scanline_buffer = pixman_malloc_ab_plus_c (width, Bpp * 3, 15 * 3);
|
||
|
|
|
||
|
|
@@ -232,7 +232,7 @@
|
||
|
|
if (dest_iter.fini)
|
||
|
|
dest_iter.fini (&dest_iter);
|
||
|
|
|
||
|
|
- if (scanline_buffer != (uint8_t *) stack_scanline_buffer)
|
||
|
|
+ if (scanline_buffer != (uint8_t *) static_scanline_buffer)
|
||
|
|
free (scanline_buffer);
|
||
|
|
}
|
||
|
|
|