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// Copyright 2019 The Dawn Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include <cmath>
#include "dawn/tests/unittests/validation/ValidationTest.h"
#include "dawn/utils/WGPUHelpers.h"
namespace {
class SamplerValidationTest : public ValidationTest {};
// Test NaN and INFINITY values are not allowed
TEST_F(SamplerValidationTest, InvalidLOD) {
{ device.CreateSampler(); }
{
wgpu::SamplerDescriptor samplerDesc;
samplerDesc.lodMinClamp = NAN;
ASSERT_DEVICE_ERROR(device.CreateSampler(&samplerDesc));
}
{
wgpu::SamplerDescriptor samplerDesc;
samplerDesc.lodMaxClamp = NAN;
ASSERT_DEVICE_ERROR(device.CreateSampler(&samplerDesc));
}
{
wgpu::SamplerDescriptor samplerDesc;
samplerDesc.lodMaxClamp = INFINITY;
device.CreateSampler(&samplerDesc);
}
{
wgpu::SamplerDescriptor samplerDesc;
samplerDesc.lodMaxClamp = INFINITY;
samplerDesc.lodMinClamp = INFINITY;
device.CreateSampler(&samplerDesc);
}
}
TEST_F(SamplerValidationTest, InvalidFilterAnisotropic) {
wgpu::SamplerDescriptor kValidAnisoSamplerDesc = {};
kValidAnisoSamplerDesc.maxAnisotropy = 2;
kValidAnisoSamplerDesc.minFilter = wgpu::FilterMode::Linear;
kValidAnisoSamplerDesc.magFilter = wgpu::FilterMode::Linear;
kValidAnisoSamplerDesc.mipmapFilter = wgpu::MipmapFilterMode::Linear;
{
// when maxAnisotropy > 1, min, mag, mipmap filter should be linear
device.CreateSampler(&kValidAnisoSamplerDesc);
}
{
wgpu::SamplerDescriptor samplerDesc = kValidAnisoSamplerDesc;
samplerDesc.maxAnisotropy = 0;
ASSERT_DEVICE_ERROR(device.CreateSampler(&samplerDesc));
}
{
wgpu::SamplerDescriptor samplerDesc = kValidAnisoSamplerDesc;
samplerDesc.minFilter = wgpu::FilterMode::Nearest;
samplerDesc.magFilter = wgpu::FilterMode::Nearest;
samplerDesc.mipmapFilter = wgpu::MipmapFilterMode::Nearest;
ASSERT_DEVICE_ERROR(device.CreateSampler(&samplerDesc));
}
{
wgpu::SamplerDescriptor samplerDesc = kValidAnisoSamplerDesc;
samplerDesc.minFilter = wgpu::FilterMode::Nearest;
ASSERT_DEVICE_ERROR(device.CreateSampler(&samplerDesc));
}
{
wgpu::SamplerDescriptor samplerDesc = kValidAnisoSamplerDesc;
samplerDesc.magFilter = wgpu::FilterMode::Nearest;
ASSERT_DEVICE_ERROR(device.CreateSampler(&samplerDesc));
}
{
wgpu::SamplerDescriptor samplerDesc = kValidAnisoSamplerDesc;
samplerDesc.mipmapFilter = wgpu::MipmapFilterMode::Nearest;
ASSERT_DEVICE_ERROR(device.CreateSampler(&samplerDesc));
}
}
TEST_F(SamplerValidationTest, ValidFilterAnisotropic) {
wgpu::SamplerDescriptor kValidAnisoSamplerDesc = {};
kValidAnisoSamplerDesc.maxAnisotropy = 2;
kValidAnisoSamplerDesc.minFilter = wgpu::FilterMode::Linear;
kValidAnisoSamplerDesc.magFilter = wgpu::FilterMode::Linear;
kValidAnisoSamplerDesc.mipmapFilter = wgpu::MipmapFilterMode::Linear;
{ device.CreateSampler(); }
{
wgpu::SamplerDescriptor samplerDesc = kValidAnisoSamplerDesc;
samplerDesc.maxAnisotropy = 16;
device.CreateSampler(&samplerDesc);
}
{
wgpu::SamplerDescriptor samplerDesc = kValidAnisoSamplerDesc;
samplerDesc.maxAnisotropy = 32;
device.CreateSampler(&samplerDesc);
}
{
wgpu::SamplerDescriptor samplerDesc = kValidAnisoSamplerDesc;
samplerDesc.maxAnisotropy = 0x7FFF;
device.CreateSampler(&samplerDesc);
}
{
wgpu::SamplerDescriptor samplerDesc = kValidAnisoSamplerDesc;
samplerDesc.maxAnisotropy = 0x8000;
device.CreateSampler(&samplerDesc);
}
{
wgpu::SamplerDescriptor samplerDesc = kValidAnisoSamplerDesc;
samplerDesc.maxAnisotropy = 0xFFFF;
device.CreateSampler(&samplerDesc);
}
}
} // anonymous namespace