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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 <vector>
#include "dawn/tests/unittests/validation/ValidationTest.h"
#include "dawn/utils/ComboRenderPipelineDescriptor.h"
#include "dawn/utils/WGPUHelpers.h"
namespace dawn {
namespace {
using testing::Not;
// These tests works assuming Dawn Native's object deduplication. Comparing the pointer is
// exploiting an implementation detail of Dawn Native.
class ObjectCachingTest : public ValidationTest {
WGPUDevice CreateTestDevice(native::Adapter dawnAdapter,
wgpu::DeviceDescriptor descriptor) override {
wgpu::FeatureName requiredFeatures[1] = {wgpu::FeatureName::StaticSamplers};
descriptor.requiredFeatures = requiredFeatures;
descriptor.requiredFeatureCount = 1;
return dawnAdapter.CreateDevice(&descriptor);
}
void SetUp() override {
ValidationTest::SetUp();
DAWN_SKIP_TEST_IF(UsesWire());
}
};
// Test that BindGroupLayouts are correctly deduplicated.
TEST_F(ObjectCachingTest, BindGroupLayoutDeduplication) {
wgpu::BindGroupLayout bgl = utils::MakeBindGroupLayout(
device, {{1, wgpu::ShaderStage::Fragment, wgpu::BufferBindingType::Uniform}});
wgpu::BindGroupLayout sameBgl = utils::MakeBindGroupLayout(
device, {{1, wgpu::ShaderStage::Fragment, wgpu::BufferBindingType::Uniform}});
wgpu::BindGroupLayout otherBgl = utils::MakeBindGroupLayout(
device, {{1, wgpu::ShaderStage::Vertex, wgpu::BufferBindingType::Uniform}});
EXPECT_THAT(bgl, Not(BindGroupLayoutEq(otherBgl)));
EXPECT_THAT(bgl, BindGroupLayoutEq(sameBgl));
}
// Test that two similar bind group layouts won't refer to the same one if they differ by dynamic.
TEST_F(ObjectCachingTest, BindGroupLayoutDynamic) {
wgpu::BindGroupLayout bgl = utils::MakeBindGroupLayout(
device, {{1, wgpu::ShaderStage::Fragment, wgpu::BufferBindingType::Uniform, true}});
wgpu::BindGroupLayout sameBgl = utils::MakeBindGroupLayout(
device, {{1, wgpu::ShaderStage::Fragment, wgpu::BufferBindingType::Uniform, true}});
wgpu::BindGroupLayout otherBgl = utils::MakeBindGroupLayout(
device, {{1, wgpu::ShaderStage::Fragment, wgpu::BufferBindingType::Uniform, false}});
EXPECT_THAT(bgl, Not(BindGroupLayoutEq(otherBgl)));
EXPECT_THAT(bgl, BindGroupLayoutEq(sameBgl));
}
// Test that two similar bind group layouts won't refer to the same one if they differ by min size.
TEST_F(ObjectCachingTest, BindGroupLayoutMinBufferSize) {
wgpu::BindGroupLayout bgl = utils::MakeBindGroupLayout(
device, {{1, wgpu::ShaderStage::Compute, wgpu::BufferBindingType::Uniform, false, 0}});
wgpu::BindGroupLayout sameBgl = utils::MakeBindGroupLayout(
device, {{1, wgpu::ShaderStage::Compute, wgpu::BufferBindingType::Uniform, false, 0}});
wgpu::BindGroupLayout otherBgl = utils::MakeBindGroupLayout(
device, {{1, wgpu::ShaderStage::Compute, wgpu::BufferBindingType::Uniform, false, 4}});
EXPECT_THAT(bgl, Not(BindGroupLayoutEq(otherBgl)));
EXPECT_THAT(bgl, BindGroupLayoutEq(sameBgl));
}
// Test that two similar bind group layouts won't refer to the same one if they differ by
// textureComponentType
TEST_F(ObjectCachingTest, BindGroupLayoutTextureComponentType) {
wgpu::BindGroupLayout bgl = utils::MakeBindGroupLayout(
device, {{1, wgpu::ShaderStage::Fragment, wgpu::TextureSampleType::Float}});
wgpu::BindGroupLayout sameBgl = utils::MakeBindGroupLayout(
device, {{1, wgpu::ShaderStage::Fragment, wgpu::TextureSampleType::Float}});
wgpu::BindGroupLayout otherBgl = utils::MakeBindGroupLayout(
device, {{1, wgpu::ShaderStage::Fragment, wgpu::TextureSampleType::Uint}});
EXPECT_THAT(bgl, Not(BindGroupLayoutEq(otherBgl)));
EXPECT_THAT(bgl, BindGroupLayoutEq(sameBgl));
}
// Test that two similar bind group layouts won't refer to the same one if they differ by
// viewDimension
TEST_F(ObjectCachingTest, BindGroupLayoutViewDimension) {
wgpu::BindGroupLayout bgl = utils::MakeBindGroupLayout(
device, {{1, wgpu::ShaderStage::Fragment, wgpu::TextureSampleType::Float}});
wgpu::BindGroupLayout sameBgl = utils::MakeBindGroupLayout(
device, {{1, wgpu::ShaderStage::Fragment, wgpu::TextureSampleType::Float}});
wgpu::BindGroupLayout otherBgl = utils::MakeBindGroupLayout(
device, {{1, wgpu::ShaderStage::Fragment, wgpu::TextureSampleType::Float,
wgpu::TextureViewDimension::e2DArray}});
EXPECT_THAT(bgl, Not(BindGroupLayoutEq(otherBgl)));
EXPECT_THAT(bgl, BindGroupLayoutEq(sameBgl));
}
// Test that BindGroupLayouts with a static sampler entry are correctly
// deduplicated.
TEST_F(ObjectCachingTest, BindGroupLayoutStaticSamplerDeduplication) {
wgpu::BindGroupLayoutEntry binding = {};
binding.binding = 0;
wgpu::StaticSamplerBindingLayout staticSamplerBinding = {};
wgpu::SamplerDescriptor samplerDesc;
samplerDesc.addressModeU = wgpu::AddressMode::ClampToEdge;
staticSamplerBinding.sampler = device.CreateSampler(&samplerDesc);
binding.nextInChain = &staticSamplerBinding;
wgpu::BindGroupLayoutDescriptor desc = {};
desc.entryCount = 1;
desc.entries = &binding;
wgpu::SamplerDescriptor otherSamplerDesc;
otherSamplerDesc.addressModeU = wgpu::AddressMode::Repeat;
wgpu::Sampler otherSampler = device.CreateSampler(&otherSamplerDesc);
EXPECT_NE(staticSamplerBinding.sampler.Get(), otherSampler.Get());
wgpu::BindGroupLayoutEntry otherBinding = {};
otherBinding.binding = 0;
wgpu::StaticSamplerBindingLayout otherStaticSamplerBinding = {};
otherStaticSamplerBinding.sampler = otherSampler;
otherBinding.nextInChain = &otherStaticSamplerBinding;
EXPECT_NE(staticSamplerBinding.sampler.Get(), otherStaticSamplerBinding.sampler.Get());
wgpu::BindGroupLayoutDescriptor otherDesc = {};
otherDesc.entryCount = 1;
otherDesc.entries = &otherBinding;
wgpu::BindGroupLayout bgl = device.CreateBindGroupLayout(&desc);
wgpu::BindGroupLayout sameBgl = device.CreateBindGroupLayout(&desc);
wgpu::BindGroupLayout otherStaticSamplerBgl = device.CreateBindGroupLayout(&otherDesc);
wgpu::BindGroupLayout otherBgl = utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Fragment, wgpu::SamplerBindingType::Filtering}});
EXPECT_THAT(bgl, BindGroupLayoutEq(sameBgl));
EXPECT_THAT(bgl, Not(BindGroupLayoutEq(otherStaticSamplerBgl)));
EXPECT_THAT(bgl, Not(BindGroupLayoutEq(otherBgl)));
}
// Test that BindGroupLayouts with a static sampler entry keep a reference
// to the static sampler, such that if a sampler is created from the same
// params the same object will be returned.
TEST_F(ObjectCachingTest, BindGroupLayoutKeepsRefToStaticSampler) {
auto sampler1 = device.CreateSampler();
wgpu::BindGroupLayoutEntry binding = {};
binding.binding = 0;
wgpu::StaticSamplerBindingLayout staticSamplerBinding = {};
staticSamplerBinding.sampler = sampler1;
binding.nextInChain = &staticSamplerBinding;
wgpu::BindGroupLayoutDescriptor desc = {};
desc.entryCount = 1;
desc.entries = &binding;
wgpu::BindGroupLayout bgl = device.CreateBindGroupLayout(&desc);
auto samplerRawPtr = sampler1.Get();
sampler1 = nullptr;
auto sampler2 = device.CreateSampler();
EXPECT_EQ(samplerRawPtr, sampler2.Get());
}
// Test that PipelineLayouts are correctly deduplicated.
TEST_F(ObjectCachingTest, PipelineLayoutDeduplication) {
wgpu::BindGroupLayout bgl = utils::MakeBindGroupLayout(
device, {{1, wgpu::ShaderStage::Fragment, wgpu::BufferBindingType::Uniform}});
wgpu::BindGroupLayout otherBgl = utils::MakeBindGroupLayout(
device, {{1, wgpu::ShaderStage::Vertex, wgpu::BufferBindingType::Uniform}});
wgpu::PipelineLayout pl = utils::MakeBasicPipelineLayout(device, &bgl);
wgpu::PipelineLayout samePl = utils::MakeBasicPipelineLayout(device, &bgl);
wgpu::PipelineLayout otherPl1 = utils::MakeBasicPipelineLayout(device, nullptr);
wgpu::PipelineLayout otherPl2 = utils::MakeBasicPipelineLayout(device, &otherBgl);
EXPECT_NE(pl.Get(), otherPl1.Get());
EXPECT_NE(pl.Get(), otherPl2.Get());
EXPECT_EQ(pl.Get(), samePl.Get());
}
// Test that ShaderModules are correctly deduplicated.
TEST_F(ObjectCachingTest, ShaderModuleDeduplication) {
wgpu::ShaderModule module = utils::CreateShaderModule(device, R"(
@fragment fn main() -> @location(0) vec4f {
return vec4f(0.0, 1.0, 0.0, 1.0);
})");
wgpu::ShaderModule sameModule = utils::CreateShaderModule(device, R"(
@fragment fn main() -> @location(0) vec4f {
return vec4f(0.0, 1.0, 0.0, 1.0);
})");
wgpu::ShaderModule otherModule = utils::CreateShaderModule(device, R"(
@fragment fn main() -> @location(0) vec4f {
return vec4f(0.0, 0.0, 0.0, 0.0);
})");
EXPECT_NE(module.Get(), otherModule.Get());
EXPECT_EQ(module.Get(), sameModule.Get());
}
// Test that ComputePipeline are correctly deduplicated wrt. their ShaderModule
TEST_F(ObjectCachingTest, ComputePipelineDeduplicationOnShaderModule) {
wgpu::ShaderModule module = utils::CreateShaderModule(device, R"(
var<workgroup> i : u32;
@compute @workgroup_size(1) fn main() {
i = 0u;
})");
wgpu::ShaderModule sameModule = utils::CreateShaderModule(device, R"(
var<workgroup> i : u32;
@compute @workgroup_size(1) fn main() {
i = 0u;
})");
wgpu::ShaderModule otherModule = utils::CreateShaderModule(device, R"(
@compute @workgroup_size(1) fn main() {
})");
EXPECT_NE(module.Get(), otherModule.Get());
EXPECT_EQ(module.Get(), sameModule.Get());
wgpu::PipelineLayout layout = utils::MakeBasicPipelineLayout(device, nullptr);
wgpu::ComputePipelineDescriptor desc;
desc.layout = layout;
desc.compute.module = module;
wgpu::ComputePipeline pipeline = device.CreateComputePipeline(&desc);
desc.compute.module = sameModule;
wgpu::ComputePipeline samePipeline = device.CreateComputePipeline(&desc);
desc.compute.module = otherModule;
wgpu::ComputePipeline otherPipeline = device.CreateComputePipeline(&desc);
EXPECT_NE(pipeline.Get(), otherPipeline.Get());
EXPECT_EQ(pipeline.Get(), samePipeline.Get());
}
// Test that ComputePipeline are correctly deduplicated wrt. their constants override values
TEST_F(ObjectCachingTest, ComputePipelineDeduplicationOnOverrides) {
wgpu::ShaderModule module = utils::CreateShaderModule(device, R"(
override x: u32 = 1u;
var<workgroup> i : u32;
@compute @workgroup_size(x) fn main() {
i = 0u;
})");
wgpu::PipelineLayout layout = utils::MakeBasicPipelineLayout(device, nullptr);
wgpu::ComputePipelineDescriptor desc;
desc.layout = layout;
desc.compute.module = module;
std::vector<wgpu::ConstantEntry> constants{{nullptr, "x", 16}};
desc.compute.constantCount = constants.size();
desc.compute.constants = constants.data();
wgpu::ComputePipeline pipeline = device.CreateComputePipeline(&desc);
std::vector<wgpu::ConstantEntry> sameConstants{{nullptr, "x", 16}};
desc.compute.constantCount = sameConstants.size();
desc.compute.constants = sameConstants.data();
wgpu::ComputePipeline samePipeline = device.CreateComputePipeline(&desc);
desc.compute.constantCount = 0;
desc.compute.constants = nullptr;
wgpu::ComputePipeline otherPipeline1 = device.CreateComputePipeline(&desc);
std::vector<wgpu::ConstantEntry> otherConstants{{nullptr, "x", 4}};
desc.compute.constantCount = otherConstants.size();
desc.compute.constants = otherConstants.data();
wgpu::ComputePipeline otherPipeline2 = device.CreateComputePipeline(&desc);
EXPECT_NE(pipeline.Get(), otherPipeline1.Get());
EXPECT_NE(pipeline.Get(), otherPipeline2.Get());
EXPECT_EQ(pipeline.Get(), samePipeline.Get());
}
// Test that ComputePipeline are correctly deduplicated wrt. their layout
TEST_F(ObjectCachingTest, ComputePipelineDeduplicationOnLayout) {
wgpu::BindGroupLayout bgl = utils::MakeBindGroupLayout(
device, {{1, wgpu::ShaderStage::Fragment, wgpu::BufferBindingType::Uniform}});
wgpu::BindGroupLayout otherBgl = utils::MakeBindGroupLayout(
device, {{1, wgpu::ShaderStage::Vertex, wgpu::BufferBindingType::Uniform}});
wgpu::PipelineLayout pl = utils::MakeBasicPipelineLayout(device, &bgl);
wgpu::PipelineLayout samePl = utils::MakeBasicPipelineLayout(device, &bgl);
wgpu::PipelineLayout otherPl = utils::MakeBasicPipelineLayout(device, nullptr);
EXPECT_NE(pl.Get(), otherPl.Get());
EXPECT_EQ(pl.Get(), samePl.Get());
wgpu::ComputePipelineDescriptor desc;
desc.compute.module = utils::CreateShaderModule(device, R"(
var<workgroup> i : u32;
@compute @workgroup_size(1) fn main() {
i = 0u;
})");
desc.layout = pl;
wgpu::ComputePipeline pipeline = device.CreateComputePipeline(&desc);
desc.layout = samePl;
wgpu::ComputePipeline samePipeline = device.CreateComputePipeline(&desc);
desc.layout = otherPl;
wgpu::ComputePipeline otherPipeline = device.CreateComputePipeline(&desc);
EXPECT_NE(pipeline.Get(), otherPipeline.Get());
EXPECT_EQ(pipeline.Get(), samePipeline.Get());
}
// Test that RenderPipelines are correctly deduplicated wrt. their layout
TEST_F(ObjectCachingTest, RenderPipelineDeduplicationOnLayout) {
wgpu::BindGroupLayout bgl = utils::MakeBindGroupLayout(
device, {{1, wgpu::ShaderStage::Fragment, wgpu::BufferBindingType::Uniform}});
wgpu::BindGroupLayout otherBgl = utils::MakeBindGroupLayout(
device, {{1, wgpu::ShaderStage::Vertex, wgpu::BufferBindingType::Uniform}});
wgpu::PipelineLayout pl = utils::MakeBasicPipelineLayout(device, &bgl);
wgpu::PipelineLayout samePl = utils::MakeBasicPipelineLayout(device, &bgl);
wgpu::PipelineLayout otherPl = utils::MakeBasicPipelineLayout(device, nullptr);
EXPECT_NE(pl.Get(), otherPl.Get());
EXPECT_EQ(pl.Get(), samePl.Get());
utils::ComboRenderPipelineDescriptor desc;
desc.cTargets[0].writeMask = wgpu::ColorWriteMask::None;
desc.vertex.module = utils::CreateShaderModule(device, R"(
@vertex fn main() -> @builtin(position) vec4f {
return vec4f(0.0, 0.0, 0.0, 0.0);
})");
desc.cFragment.module = utils::CreateShaderModule(device, R"(
@fragment fn main() {
})");
desc.layout = pl;
wgpu::RenderPipeline pipeline = device.CreateRenderPipeline(&desc);
desc.layout = samePl;
wgpu::RenderPipeline samePipeline = device.CreateRenderPipeline(&desc);
desc.layout = otherPl;
wgpu::RenderPipeline otherPipeline = device.CreateRenderPipeline(&desc);
EXPECT_NE(pipeline.Get(), otherPipeline.Get());
EXPECT_EQ(pipeline.Get(), samePipeline.Get());
}
// Test that RenderPipelines are correctly deduplicated wrt. their vertex module
TEST_F(ObjectCachingTest, RenderPipelineDeduplicationOnVertexModule) {
wgpu::ShaderModule module = utils::CreateShaderModule(device, R"(
@vertex fn main() -> @builtin(position) vec4f {
return vec4f(0.0, 0.0, 0.0, 0.0);
})");
wgpu::ShaderModule sameModule = utils::CreateShaderModule(device, R"(
@vertex fn main() -> @builtin(position) vec4f {
return vec4f(0.0, 0.0, 0.0, 0.0);
})");
wgpu::ShaderModule otherModule = utils::CreateShaderModule(device, R"(
@vertex fn main() -> @builtin(position) vec4f {
return vec4f(1.0, 1.0, 1.0, 1.0);
})");
EXPECT_NE(module.Get(), otherModule.Get());
EXPECT_EQ(module.Get(), sameModule.Get());
utils::ComboRenderPipelineDescriptor desc;
desc.layout = utils::MakeBasicPipelineLayout(device, nullptr);
desc.cTargets[0].writeMask = wgpu::ColorWriteMask::None;
desc.cFragment.module = utils::CreateShaderModule(device, R"(
@fragment fn main() {
})");
desc.vertex.module = module;
wgpu::RenderPipeline pipeline = device.CreateRenderPipeline(&desc);
desc.vertex.module = sameModule;
wgpu::RenderPipeline samePipeline = device.CreateRenderPipeline(&desc);
desc.vertex.module = otherModule;
wgpu::RenderPipeline otherPipeline = device.CreateRenderPipeline(&desc);
EXPECT_NE(pipeline.Get(), otherPipeline.Get());
EXPECT_EQ(pipeline.Get(), samePipeline.Get());
}
// Test that RenderPipelines are correctly deduplicated wrt. their fragment module
TEST_F(ObjectCachingTest, RenderPipelineDeduplicationOnFragmentModule) {
wgpu::ShaderModule module = utils::CreateShaderModule(device, R"(
@fragment fn main() {
})");
wgpu::ShaderModule sameModule = utils::CreateShaderModule(device, R"(
@fragment fn main() {
})");
wgpu::ShaderModule otherModule = utils::CreateShaderModule(device, R"(
@fragment fn main() -> @location(0) vec4f {
return vec4f(0.0, 0.0, 0.0, 0.0);
})");
EXPECT_NE(module.Get(), otherModule.Get());
EXPECT_EQ(module.Get(), sameModule.Get());
utils::ComboRenderPipelineDescriptor desc;
desc.layout = utils::MakeBasicPipelineLayout(device, nullptr);
desc.vertex.module = utils::CreateShaderModule(device, R"(
@vertex fn main() -> @builtin(position) vec4f {
return vec4f(0.0, 0.0, 0.0, 0.0);
})");
desc.cFragment.module = module;
desc.cTargets[0].writeMask = wgpu::ColorWriteMask::None;
wgpu::RenderPipeline pipeline = device.CreateRenderPipeline(&desc);
desc.cFragment.module = sameModule;
wgpu::RenderPipeline samePipeline = device.CreateRenderPipeline(&desc);
desc.cFragment.module = otherModule;
wgpu::RenderPipeline otherPipeline = device.CreateRenderPipeline(&desc);
EXPECT_NE(pipeline.Get(), otherPipeline.Get());
EXPECT_EQ(pipeline.Get(), samePipeline.Get());
}
// Test that Renderpipelines are correctly deduplicated wrt. their constants override values
TEST_F(ObjectCachingTest, RenderPipelineDeduplicationOnOverrides) {
wgpu::ShaderModule module = utils::CreateShaderModule(device, R"(
override a: f32 = 1.0;
@vertex fn vertexMain() -> @builtin(position) vec4f {
return vec4f(0.0, 0.0, 0.0, 0.0);
}
@fragment fn fragmentMain() -> @location(0) vec4f {
return vec4f(0.0, 0.0, 0.0, a);
})");
utils::ComboRenderPipelineDescriptor desc;
desc.layout = utils::MakeBasicPipelineLayout(device, nullptr);
desc.vertex.module = module;
desc.cFragment.module = module;
desc.cTargets[0].writeMask = wgpu::ColorWriteMask::None;
std::vector<wgpu::ConstantEntry> constants{{nullptr, "a", 0.5}};
desc.cFragment.constantCount = constants.size();
desc.cFragment.constants = constants.data();
wgpu::RenderPipeline pipeline = device.CreateRenderPipeline(&desc);
std::vector<wgpu::ConstantEntry> sameConstants{{nullptr, "a", 0.5}};
desc.cFragment.constantCount = sameConstants.size();
desc.cFragment.constants = sameConstants.data();
wgpu::RenderPipeline samePipeline = device.CreateRenderPipeline(&desc);
std::vector<wgpu::ConstantEntry> otherConstants{{nullptr, "a", 1.0}};
desc.cFragment.constantCount = otherConstants.size();
desc.cFragment.constants = otherConstants.data();
wgpu::RenderPipeline otherPipeline1 = device.CreateRenderPipeline(&desc);
desc.cFragment.constantCount = 0;
desc.cFragment.constants = nullptr;
wgpu::RenderPipeline otherPipeline2 = device.CreateRenderPipeline(&desc);
EXPECT_NE(pipeline.Get(), otherPipeline1.Get());
EXPECT_NE(pipeline.Get(), otherPipeline2.Get());
EXPECT_EQ(pipeline.Get(), samePipeline.Get());
}
// Test that Samplers are correctly deduplicated.
TEST_F(ObjectCachingTest, SamplerDeduplication) {
wgpu::SamplerDescriptor samplerDesc;
wgpu::Sampler sampler = device.CreateSampler(&samplerDesc);
wgpu::SamplerDescriptor sameSamplerDesc;
wgpu::Sampler sameSampler = device.CreateSampler(&sameSamplerDesc);
wgpu::SamplerDescriptor otherSamplerDescAddressModeU;
otherSamplerDescAddressModeU.addressModeU = wgpu::AddressMode::Repeat;
wgpu::Sampler otherSamplerAddressModeU = device.CreateSampler(&otherSamplerDescAddressModeU);
wgpu::SamplerDescriptor otherSamplerDescAddressModeV;
otherSamplerDescAddressModeV.addressModeV = wgpu::AddressMode::Repeat;
wgpu::Sampler otherSamplerAddressModeV = device.CreateSampler(&otherSamplerDescAddressModeV);
wgpu::SamplerDescriptor otherSamplerDescAddressModeW;
otherSamplerDescAddressModeW.addressModeW = wgpu::AddressMode::Repeat;
wgpu::Sampler otherSamplerAddressModeW = device.CreateSampler(&otherSamplerDescAddressModeW);
wgpu::SamplerDescriptor otherSamplerDescMagFilter;
otherSamplerDescMagFilter.magFilter = wgpu::FilterMode::Linear;
wgpu::Sampler otherSamplerMagFilter = device.CreateSampler(&otherSamplerDescMagFilter);
wgpu::SamplerDescriptor otherSamplerDescMinFilter;
otherSamplerDescMinFilter.minFilter = wgpu::FilterMode::Linear;
wgpu::Sampler otherSamplerMinFilter = device.CreateSampler(&otherSamplerDescMinFilter);
wgpu::SamplerDescriptor otherSamplerDescMipmapFilter;
otherSamplerDescMipmapFilter.mipmapFilter = wgpu::MipmapFilterMode::Linear;
wgpu::Sampler otherSamplerMipmapFilter = device.CreateSampler(&otherSamplerDescMipmapFilter);
wgpu::SamplerDescriptor otherSamplerDescLodMinClamp;
otherSamplerDescLodMinClamp.lodMinClamp += 1;
wgpu::Sampler otherSamplerLodMinClamp = device.CreateSampler(&otherSamplerDescLodMinClamp);
wgpu::SamplerDescriptor otherSamplerDescLodMaxClamp;
otherSamplerDescLodMaxClamp.lodMaxClamp += 1;
wgpu::Sampler otherSamplerLodMaxClamp = device.CreateSampler(&otherSamplerDescLodMaxClamp);
wgpu::SamplerDescriptor otherSamplerDescCompareFunction;
otherSamplerDescCompareFunction.compare = wgpu::CompareFunction::Always;
wgpu::Sampler otherSamplerCompareFunction =
device.CreateSampler(&otherSamplerDescCompareFunction);
EXPECT_NE(sampler.Get(), otherSamplerAddressModeU.Get());
EXPECT_NE(sampler.Get(), otherSamplerAddressModeV.Get());
EXPECT_NE(sampler.Get(), otherSamplerAddressModeW.Get());
EXPECT_NE(sampler.Get(), otherSamplerMagFilter.Get());
EXPECT_NE(sampler.Get(), otherSamplerMinFilter.Get());
EXPECT_NE(sampler.Get(), otherSamplerMipmapFilter.Get());
EXPECT_NE(sampler.Get(), otherSamplerLodMinClamp.Get());
EXPECT_NE(sampler.Get(), otherSamplerLodMaxClamp.Get());
EXPECT_NE(sampler.Get(), otherSamplerCompareFunction.Get());
EXPECT_EQ(sampler.Get(), sameSampler.Get());
}
} // anonymous namespace
} // namespace dawn