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virgl: Assume sRGB write control for older guest kernels or virglrenderer hosts

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When the host virglrenderer is an older version that doesn't check the sRGB write
control feature, or when the guest kernel doesn't support CAPS v2, then the guest
will only report support for GL 2.1 on a GL 3.3 host, even though it was supporting
3.3 with earlier guest mesa versions.

By also checking the host feature check version this regression can be avoided.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=110921
Fixes: 2845939d6a
   virgl: Set sRGB write control CAP based on host capabilities

Signed-off-by: Gert Wollny <gert.wollny@collabora.com>
Reviewed-by: Chia-I Wu <olvaffe@gmail.com>
This commit is contained in:
Gert Wollny 2019-06-17 08:44:14 +02:00 • committed by Gert Wollny
parent 21c795ab07
commit 2b87753a84
1 changed files with 2 additions and 1 deletions
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3
src/gallium/drivers/virgl/virgl_screen.c
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@ -358,7 +358,8 @@ virgl_get_param(struct pipe_screen *screen, enum pipe_cap param)
case PIPE_CAP_NATIVE_FENCE_FD:
return vscreen->vws->supports_fences;
case PIPE_CAP_DEST_SURFACE_SRGB_CONTROL:
return vscreen->caps.caps.v2.capability_bits & VIRGL_CAP_SRGB_WRITE_CONTROL;
return (vscreen->caps.caps.v2.capability_bits & VIRGL_CAP_SRGB_WRITE_CONTROL) ||
(vscreen->caps.caps.v2.host_feature_check_version < 1);
case PIPE_CAP_TGSI_SKIP_SHRINK_IO_ARRAYS:
return vscreen->caps.caps.v2.capability_bits & VIRGL_CAP_INDIRECT_INPUT_ADDR;
default: