Change default lod preclamp mode in sampler_state

Signed-off-by: Bartosz Dunajski <bartosz.dunajski@intel.com>

Author: BartoszDunajski

level_zero/core/source/sampler/sampler_hw.inl

@@ -21,6 +21,8 @@ ze_result_t SamplerCoreFamily<gfxCoreFamily>::initialize(Device *device, const z
 
     samplerState.setNonNormalizedCoordinateEnable(!desc->isNormalized);
 
+    samplerState.setLodPreclampMode(SAMPLER_STATE::LOD_PRECLAMP_MODE::LOD_PRECLAMP_MODE_OGL);
+
     auto addressControlModeX = SAMPLER_STATE::TEXTURE_COORDINATE_MODE_CLAMP_BORDER;
     auto addressControlModeY = SAMPLER_STATE::TEXTURE_COORDINATE_MODE_CLAMP_BORDER;
     auto addressControlModeZ = SAMPLER_STATE::TEXTURE_COORDINATE_MODE_CLAMP_BORDER;

level_zero/core/test/unit_tests/sources/sampler/test_sampler.cpp

@@ -63,6 +63,8 @@ HWTEST2_P(SamplerCreateTest, givenDifferentDescriptorValuesThenSamplerIsCorrectl
 
     sampler->initialize(device, &desc);
 
+    EXPECT_EQ(SAMPLER_STATE::LOD_PRECLAMP_MODE::LOD_PRECLAMP_MODE_OGL, sampler->samplerState.getLodPreclampMode());
+
     if (isNormalized == static_cast<ze_bool_t>(true)) {
         EXPECT_FALSE(sampler->samplerState.getNonNormalizedCoordinateEnable());
     } else {

opencl/source/sampler/sampler.inl

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2018-2021 Intel Corporation
+ * Copyright (C) 2018-2022 Intel Corporation
  *
  * SPDX-License-Identifier: MIT
  *
@@ -19,6 +19,8 @@ void SamplerHw<GfxFamily>::setArg(void *memory, const HardwareInfo &hwInfo) {
     auto samplerState = reinterpret_cast<SAMPLER_STATE *>(memory);
     samplerState->setNonNormalizedCoordinateEnable(!this->normalizedCoordinates);
 
+    samplerState->setLodPreclampMode(SAMPLER_STATE::LOD_PRECLAMP_MODE::LOD_PRECLAMP_MODE_OGL);
+
     auto addressControlModeX = SAMPLER_STATE::TEXTURE_COORDINATE_MODE_CLAMP;
     auto addressControlModeY = SAMPLER_STATE::TEXTURE_COORDINATE_MODE_CLAMP;
     auto addressControlModeZ = SAMPLER_STATE::TEXTURE_COORDINATE_MODE_CLAMP;

opencl/test/unit_test/sampler/sampler_set_arg_tests.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2018-2021 Intel Corporation
+ * Copyright (C) 2018-2022 Intel Corporation
  *
  * SPDX-License-Identifier: MIT
  *
@@ -127,6 +127,7 @@ HWTEST_F(SamplerSetArgTest, WhenSettingKernelArgSamplerThenSamplerStatesAreCorre
     EXPECT_EQ(SAMPLER_STATE::MIN_MODE_FILTER_NEAREST, samplerState->getMinModeFilter());
     EXPECT_EQ(SAMPLER_STATE::MAG_MODE_FILTER_NEAREST, samplerState->getMagModeFilter());
     EXPECT_EQ(SAMPLER_STATE::MIP_MODE_FILTER_NEAREST, samplerState->getMipModeFilter());
+    EXPECT_EQ(SAMPLER_STATE::LOD_PRECLAMP_MODE::LOD_PRECLAMP_MODE_OGL, samplerState->getLodPreclampMode());
 
     std::vector<Surface *> surfaces;
     pKernel->getResidency(surfaces);