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// Copyright 2021 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 <memory>
#include <utility>
#include "dawn/common/GPUInfo.h"
#include "dawn/native/DawnNative.h"
#include "dawn/webgpu_cpp.h"
#if defined(DAWN_ENABLE_BACKEND_VULKAN)
#include "dawn/native/VulkanBackend.h"
#endif // defined(DAWN_ENABLE_BACKEND_VULKAN)
#if defined(DAWN_ENABLE_BACKEND_D3D11)
#include "dawn/native/D3D11Backend.h"
#endif // defined(DAWN_ENABLE_BACKEND_D3D11)
#if defined(DAWN_ENABLE_BACKEND_D3D12)
#include "dawn/native/D3D12Backend.h"
#endif // defined(DAWN_ENABLE_BACKEND_D3D12)
#if defined(DAWN_ENABLE_BACKEND_METAL)
#include "dawn/native/MetalBackend.h"
#endif // defined(DAWN_ENABLE_BACKEND_METAL)
#if defined(DAWN_ENABLE_BACKEND_DESKTOP_GL) || defined(DAWN_ENABLE_BACKEND_OPENGLES)
#include "GLFW/glfw3.h"
#include "dawn/native/OpenGLBackend.h"
#endif // defined(DAWN_ENABLE_BACKEND_DESKTOP_GL) || defined(DAWN_ENABLE_BACKEND_OPENGLES)
#include <gtest/gtest.h>
namespace dawn {
namespace {
class PhysicalDeviceDiscoveryTests : public ::testing::Test {};
#if defined(DAWN_ENABLE_BACKEND_VULKAN)
// Test only discovering the SwiftShader physical devices
TEST(PhysicalDeviceDiscoveryTests, OnlySwiftShader) {
native::Instance instance;
native::vulkan::PhysicalDeviceDiscoveryOptions options;
options.forceSwiftShader = true;
instance.DiscoverPhysicalDevices(&options);
const auto& adapters = instance.GetAdapters();
EXPECT_LE(adapters.size(), 2u); // 0 or 2 SwiftShader adapters.
for (const auto& adapter : adapters) {
wgpu::AdapterProperties properties;
adapter.GetProperties(&properties);
EXPECT_EQ(properties.backendType, wgpu::BackendType::Vulkan);
EXPECT_EQ(properties.adapterType, wgpu::AdapterType::CPU);
EXPECT_TRUE(gpu_info::IsGoogleSwiftshader(properties.vendorID, properties.deviceID));
}
}
// Test discovering only Vulkan physical devices
TEST(PhysicalDeviceDiscoveryTests, OnlyVulkan) {
native::Instance instance;
native::vulkan::PhysicalDeviceDiscoveryOptions options;
instance.DiscoverPhysicalDevices(&options);
const auto& adapters = instance.GetAdapters();
for (const auto& adapter : adapters) {
wgpu::AdapterProperties properties;
adapter.GetProperties(&properties);
EXPECT_EQ(properties.backendType, wgpu::BackendType::Vulkan);
}
}
#endif // defined(DAWN_ENABLE_BACKEND_VULKAN)
#if defined(DAWN_ENABLE_BACKEND_D3D11)
// Test discovering only D3D11 physical devices
TEST(PhysicalDeviceDiscoveryTests, OnlyD3D11) {
native::Instance instance;
native::d3d11::PhysicalDeviceDiscoveryOptions options;
instance.DiscoverPhysicalDevices(&options);
const auto& adapters = instance.GetAdapters();
for (const auto& adapter : adapters) {
wgpu::AdapterProperties properties;
adapter.GetProperties(&properties);
EXPECT_EQ(properties.backendType, wgpu::BackendType::D3D11);
}
}
// Test discovering a D3D11 physical device from a prexisting DXGI adapter
TEST(PhysicalDeviceDiscoveryTests, MatchingDXGIAdapterD3D11) {
using Microsoft::WRL::ComPtr;
ComPtr<IDXGIFactory4> dxgiFactory;
HRESULT hr = ::CreateDXGIFactory2(0, IID_PPV_ARGS(&dxgiFactory));
ASSERT_EQ(hr, S_OK);
for (uint32_t adapterIndex = 0;; ++adapterIndex) {
ComPtr<IDXGIAdapter1> dxgiAdapter = nullptr;
if (dxgiFactory->EnumAdapters1(adapterIndex, &dxgiAdapter) == DXGI_ERROR_NOT_FOUND) {
break; // No more adapters to enumerate.
}
native::Instance instance;
native::d3d11::PhysicalDeviceDiscoveryOptions options;
options.dxgiAdapter = std::move(dxgiAdapter);
instance.DiscoverPhysicalDevices(&options);
const auto& adapters = instance.GetAdapters();
for (const auto& adapter : adapters) {
wgpu::AdapterProperties properties;
adapter.GetProperties(&properties);
EXPECT_EQ(properties.backendType, wgpu::BackendType::D3D11);
}
}
}
#endif // defined(DAWN_ENABLE_BACKEND_D3D11)
#if defined(DAWN_ENABLE_BACKEND_D3D12)
// Test discovering only D3D12 physical devices
TEST(PhysicalDeviceDiscoveryTests, OnlyD3D12) {
native::Instance instance;
native::d3d12::PhysicalDeviceDiscoveryOptions options;
instance.DiscoverPhysicalDevices(&options);
const auto& adapters = instance.GetAdapters();
for (const auto& adapter : adapters) {
wgpu::AdapterProperties properties;
adapter.GetProperties(&properties);
EXPECT_EQ(properties.backendType, wgpu::BackendType::D3D12);
}
}
// Test discovering a D3D12 physical device from a prexisting DXGI adapter
TEST(PhysicalDeviceDiscoveryTests, MatchingDXGIAdapterD3D12) {
using Microsoft::WRL::ComPtr;
ComPtr<IDXGIFactory4> dxgiFactory;
HRESULT hr = ::CreateDXGIFactory2(0, IID_PPV_ARGS(&dxgiFactory));
ASSERT_EQ(hr, S_OK);
for (uint32_t adapterIndex = 0;; ++adapterIndex) {
ComPtr<IDXGIAdapter1> dxgiAdapter = nullptr;
if (dxgiFactory->EnumAdapters1(adapterIndex, &dxgiAdapter) == DXGI_ERROR_NOT_FOUND) {
break; // No more adapters to enumerate.
}
native::Instance instance;
native::d3d12::PhysicalDeviceDiscoveryOptions options;
options.dxgiAdapter = std::move(dxgiAdapter);
instance.DiscoverPhysicalDevices(&options);
const auto& adapters = instance.GetAdapters();
for (const auto& adapter : adapters) {
wgpu::AdapterProperties properties;
adapter.GetProperties(&properties);
EXPECT_EQ(properties.backendType, wgpu::BackendType::D3D12);
}
}
}
#endif // defined(DAWN_ENABLE_BACKEND_D3D12)
#if defined(DAWN_ENABLE_BACKEND_METAL)
// Test discovering only Metal physical devices
TEST(PhysicalDeviceDiscoveryTests, OnlyMetal) {
native::Instance instance;
native::metal::PhysicalDeviceDiscoveryOptions options;
instance.DiscoverPhysicalDevices(&options);
const auto& adapters = instance.GetAdapters();
for (const auto& adapter : adapters) {
wgpu::AdapterProperties properties;
adapter.GetProperties(&properties);
EXPECT_EQ(properties.backendType, wgpu::BackendType::Metal);
}
}
#endif // defined(DAWN_ENABLE_BACKEND_METAL)
#if defined(DAWN_ENABLE_BACKEND_METAL) && defined(DAWN_ENABLE_BACKEND_VULKAN)
// Test discovering the Metal backend, then the Vulkan backend
// does not duplicate physical devices.
TEST(PhysicalDeviceDiscoveryTests, OneBackendThenTheOther) {
native::Instance instance;
uint32_t metalAdapterCount = 0;
{
native::metal::PhysicalDeviceDiscoveryOptions options;
instance.DiscoverPhysicalDevices(&options);
const auto& adapters = instance.GetAdapters();
metalAdapterCount = adapters.size();
for (const auto& adapter : adapters) {
wgpu::AdapterProperties properties;
adapter.GetProperties(&properties);
ASSERT_EQ(properties.backendType, wgpu::BackendType::Metal);
}
}
{
native::vulkan::PhysicalDeviceDiscoveryOptions options;
instance.DiscoverPhysicalDevices(&options);
uint32_t metalAdapterCount2 = 0;
const auto& adapters = instance.GetAdapters();
for (const auto& adapter : adapters) {
wgpu::AdapterProperties properties;
adapter.GetProperties(&properties);
EXPECT_TRUE(properties.backendType == wgpu::BackendType::Metal ||
properties.backendType == wgpu::BackendType::Vulkan);
if (properties.backendType == wgpu::BackendType::Metal) {
metalAdapterCount2++;
}
}
EXPECT_EQ(metalAdapterCount, metalAdapterCount2);
}
}
#endif // defined(DAWN_ENABLE_BACKEND_VULKAN) && defined(DAWN_ENABLE_BACKEND_METAL)
} // anonymous namespace
} // namespace dawn