Mesa (master): anv/descriptor_set: Only write texture swizzles if we have an image view

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Module: Mesa
Branch: master
Commit: 0a364a4a74e774030cde542ba8be90008b3f1211
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=0a364a4a74e774030cde542ba8be90008b3f1211

Author: Jason Ekstrand <jason at jlekstrand.net>
Date:   Tue Jun 25 14:26:56 2019 -0500

anv/descriptor_set: Only write texture swizzles if we have an image view

When immutable samplers are set we call write_image_view with a NULL
image view.  This causes issues on IVB where we have to fake texture
swizzling.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=110999
Fixes: d2aa65eb18 "anv: Emulate texture swizzle in the shader when..."

---

 src/intel/vulkan/anv_descriptor_set.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/intel/vulkan/anv_descriptor_set.c b/src/intel/vulkan/anv_descriptor_set.c
index a6b49468f73..f4e00667334 100644
--- a/src/intel/vulkan/anv_descriptor_set.c
+++ b/src/intel/vulkan/anv_descriptor_set.c
@@ -1198,7 +1198,7 @@ anv_descriptor_set_write_image_view(struct anv_device *device,
       anv_descriptor_set_write_image_param(desc_map, image_param);
    }
 
-   if (bind_layout->data & ANV_DESCRIPTOR_TEXTURE_SWIZZLE) {
+   if (image_view && (bind_layout->data & ANV_DESCRIPTOR_TEXTURE_SWIZZLE)) {
       assert(!(bind_layout->data & ANV_DESCRIPTOR_SAMPLED_IMAGE));
       assert(image_view);
       struct anv_texture_swizzle_descriptor desc_data[3];