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softpipe: implement seamless cubemap support. (v1.1)

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This adds seamless sampling for cubemap boundaries if requested.

The corner case averaging is messy but seems like it should be spec
compliant.

The face direction stuff is also a bit messy, I've no idea if that could
or should be simpler, or even if all my directions are fully correct!

v1.1: update comments, drop unneeded seamless calls for nearest, fix
if statement layout.

Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie
2012-12-11 19:52:48 +10:00
committed by Dave Airlie
parent 3392f2fbcf
commit 621259b3de
2 changed files with 139 additions and 9 deletions
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2
src/gallium/drivers/softpipe/sp_screen.c
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@@ -127,7 +127,7 @@ softpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
return 1;
case PIPE_CAP_SEAMLESS_CUBE_MAP:
case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
return 0;
return 1;
case PIPE_CAP_SCALED_RESOLVE:
return 0;
case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS: