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virgl: fix BGRA emulation artifacts during window resize 

On some devices, window resizing results in flashes of blue- and
orange-tinted versions of the current frame until resizing is
finished.

This fix ensures that the emubgra tweak used for GLES virgl hosts
has its enabled state flag set properly during resize events.

v2: removed unrelated whitespace change

Fixes: 6f68cacf61 ("virgl: Always enable emulated BGRA and swizzling unless specifically told not to")
Signed-off-by: Ryan Neph <ryanneph@google.com>
Reviewed-by: Gert Wollny <gert.wollny@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8119>
This commit is contained in:
Ryan Neph 2020-12-16 01:18:09 +00:00 committed by Marge Bot
parent 46d2f4b75e
commit accc222217
1 changed files with 3 additions and 1 deletions
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4
src/gallium/drivers/virgl/virgl_screen.c
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@ -874,7 +874,9 @@ virgl_create_screen(struct virgl_winsys *vws, const struct pipe_screen_config *c
fixup_formats(&screen->caps.caps, &screen->caps.caps.v2.scanout);
union virgl_caps *caps = &screen->caps.caps;
screen->tweak_gles_emulate_bgra &= !virgl_format_check_bitmask(PIPE_FORMAT_B8G8R8A8_SRGB, caps->v1.render.bitmask, false);
bool may_emulate_bgra = (caps->v2.capability_bits & VIRGL_CAP_APP_TWEAK_SUPPORT);
screen->tweak_gles_emulate_bgra &= !virgl_format_check_bitmask(
PIPE_FORMAT_B8G8R8A8_SRGB, caps->v1.render.bitmask, may_emulate_bgra);
screen->refcnt = 1;
slab_create_parent(&screen->transfer_pool, sizeof(struct virgl_transfer), 16);