| // Copyright 2019 The Amber 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 "samples/config_helper_dawn.h" |
| |
| #include <iostream> |
| |
| namespace sample { |
| |
| ConfigHelperDawn::ConfigHelperDawn() = default; |
| ConfigHelperDawn::~ConfigHelperDawn() = default; |
| |
| namespace { |
| |
| // Callback which prints a message from a Dawn device operation. |
| void PrintDeviceError(DawnErrorType errorType, const char* message, void*) { |
| switch (errorType) { |
| case DAWN_ERROR_TYPE_VALIDATION: |
| std::cout << "Validation "; |
| break; |
| case DAWN_ERROR_TYPE_OUT_OF_MEMORY: |
| std::cout << "Out of memory "; |
| break; |
| case DAWN_ERROR_TYPE_UNKNOWN: |
| case DAWN_ERROR_TYPE_FORCE32: |
| std::cout << "Unknown "; |
| break; |
| case DAWN_ERROR_TYPE_DEVICE_LOST: |
| std::cout << "Device lost "; |
| break; |
| default: |
| std::cout << "Unreachable"; |
| return; |
| } |
| std::cout << "error: " << message << std::endl; |
| } |
| |
| } // namespace |
| |
| amber::Result ConfigHelperDawn::CreateConfig( |
| uint32_t, |
| uint32_t, |
| const std::vector<std::string>&, |
| const std::vector<std::string>&, |
| const std::vector<std::string>&, |
| bool, |
| bool, |
| std::unique_ptr<amber::EngineConfig>* config) { |
| // Set procedure table and error callback. |
| DawnProcTable backendProcs = dawn_native::GetProcs(); |
| dawnSetProcs(&backendProcs); |
| dawn_instance_.DiscoverDefaultAdapters(); |
| |
| for (dawn_native::Adapter& adapter : dawn_instance_.GetAdapters()) { |
| #if AMBER_DAWN_METAL |
| ::dawn_native::BackendType backendType = ::dawn_native::BackendType::Metal; |
| #else // assuming VULKAN |
| ::dawn_native::BackendType backendType = ::dawn_native::BackendType::Vulkan; |
| #endif |
| |
| if (adapter.GetBackendType() == backendType) { |
| dawn_device_ = ::dawn::Device::Acquire(adapter.CreateDevice()); |
| } |
| } |
| |
| if (!dawn_device_) |
| return amber::Result("could not find Vulkan or Metal backend for Dawn"); |
| |
| backendProcs.deviceSetUncapturedErrorCallback(dawn_device_.Get(), |
| PrintDeviceError, nullptr); |
| auto* dawn_config = new amber::DawnEngineConfig; |
| dawn_config->device = &dawn_device_; |
| config->reset(dawn_config); |
| |
| return {}; |
| } |
| |
| } // namespace sample |