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glamor: Prepare/finish access once if src equal to dst. 

Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>
This commit is contained in:
Zhigang Gong 2011-06-28 14:28:19 +08:00
parent cbedfe7513
commit 4afa9e4080
1 changed files with 4 additions and 2 deletions
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4
glamor/glamor_copyarea.c
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@ -322,6 +322,7 @@ glamor_copy_n_to_n(DrawablePtr src,
goto done;
return;
}
glamor_report_delayed_fallbacks(src->pScreen);
glamor_report_delayed_fallbacks(dst->pScreen);
@ -329,10 +330,11 @@ glamor_copy_n_to_n(DrawablePtr src,
glamor_get_drawable_location(src),
glamor_get_drawable_location(dst));
if (glamor_prepare_access(dst, GLAMOR_ACCESS_RW)) {
if (glamor_prepare_access(src, GLAMOR_ACCESS_RO)) {
if (dst == src || glamor_prepare_access(src, GLAMOR_ACCESS_RO)) {
fbCopyNtoN(src, dst, gc, box, nbox,
dx, dy, reverse, upsidedown, bitplane,
closure);
if (dst != src)
glamor_finish_access(src);
}
glamor_finish_access(dst);