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// Copyright 2019 The Dawn & Tint Authors
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#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