[Mesa-dev] [PATCH] anv: bump the texture gather offset limits

[Ilia Mirkin]

This matches what NVIDIA and AMD hardware expose.

Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu>
---

Not sure what the true HW limit is here. On NVIDIA, the true HW limit really
is -32/31 though. As an aside, according to vulkan.gpuinfo.org, the Intel
Windows driver also exposes -32/31.

With the updated limits on SKL, everything still passes:

./deqp-vk --deqp-visibility=hidden --deqp-case='*texture_gather*'
Test run totals:
  Passed:        762/1524 (50.0%)
  Failed:        0/1524 (0.0%)
  Not supported: 762/1524 (50.0%)
  Warnings:      0/1524 (0.0%)

 src/intel/vulkan/anv_device.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/intel/vulkan/anv_device.c b/src/intel/vulkan/anv_device.c
index 16aba59..d20dc0f 100644
--- a/src/intel/vulkan/anv_device.c
+++ b/src/intel/vulkan/anv_device.c
@@ -555,8 +555,8 @@ void anv_GetPhysicalDeviceProperties(
       .minStorageBufferOffsetAlignment          = 1,
       .minTexelOffset                           = -8,
       .maxTexelOffset                           = 7,
-      .minTexelGatherOffset                     = -8,
-      .maxTexelGatherOffset                     = 7,
+      .minTexelGatherOffset                     = -32,
+      .maxTexelGatherOffset                     = 31,
       .minInterpolationOffset                   = -0.5,
       .maxInterpolationOffset                   = 0.4375,
       .subPixelInterpolationOffsetBits          = 4,
-- 
2.7.3