diff options
| author | Jason Ekstrand <[email protected]> | 2019-05-17 10:04:58 -0500 |
|---|---|---|
| committer | Jason Ekstrand <[email protected]> | 2019-05-17 12:25:58 -0500 |
| commit | d2aa65eb1892f7b300ac24560f9dbda6b600b5a7 (patch) | |
| tree | 0877c1d5ce4d5d739049ddfce097c07aff6e6351 /src/intel/vulkan/anv_image.c | |
| parent | ea479fdc1d04f8548fb6628f5d5bda83324a76da (diff) | |
anv: Emulate texture swizzle in the shader when needed
Now that we have the descriptor buffer mechanism, emulated texture
swizzle can be implemented in a very non-invasive way. Previous
attempts all tried to extend the push constant based image param
mechanism which was gross. This could, in theory, be done much faster
with a magic back-end instruction which does indirect MOVs but Vulkan on
IVB is already so slow this isn't going to matter much.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=104355
Cc: "19.1" <[email protected]>
Reviewed-by: Lionel Landwerlin <[email protected]>
Diffstat (limited to 'src/intel/vulkan/anv_image.c')
| -rw-r--r-- | src/intel/vulkan/anv_image.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/intel/vulkan/anv_image.c b/src/intel/vulkan/anv_image.c index 3841234df14..8e45803a7bc 100644 --- a/src/intel/vulkan/anv_image.c +++ b/src/intel/vulkan/anv_image.c @@ -1278,6 +1278,10 @@ anv_image_fill_surface_state(struct anv_device *device, if (view_usage == ISL_SURF_USAGE_RENDER_TARGET_BIT) view.swizzle = anv_swizzle_for_render(view.swizzle); + /* On Ivy Bridge and Bay Trail we do the swizzle in the shader */ + if (device->info.gen == 7 && !device->info.is_haswell) + view.swizzle = ISL_SWIZZLE_IDENTITY; + /* If this is a HiZ buffer we can sample from with a programmable clear * value (SKL+), define the clear value to the optimal constant. */ |