// Copyright 2017 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 "SampleUtils.h" #include "common/Assert.h" #include "common/Log.h" #include "common/Platform.h" #include "common/SystemUtils.h" #include "utils/BackendBinding.h" #include "utils/GLFWUtils.h" #include "utils/TerribleCommandBuffer.h" #include <dawn/dawn_proc.h> #include <dawn/dawn_wsi.h> #include <dawn_native/DawnNative.h> #include <dawn_wire/WireClient.h> #include <dawn_wire/WireServer.h> #include "GLFW/glfw3.h" #include <algorithm> #include <cstring> void PrintDeviceError(WGPUErrorType errorType, const char* message, void*) { const char* errorTypeName = ""; switch (errorType) { case WGPUErrorType_Validation: errorTypeName = "Validation"; break; case WGPUErrorType_OutOfMemory: errorTypeName = "Out of memory"; break; case WGPUErrorType_Unknown: errorTypeName = "Unknown"; break; case WGPUErrorType_DeviceLost: errorTypeName = "Device lost"; break; default: UNREACHABLE(); return; } dawn::ErrorLog() << errorTypeName << " error: " << message; } void PrintGLFWError(int code, const char* message) { dawn::ErrorLog() << "GLFW error: " << code << " - " << message; } enum class CmdBufType { None, Terrible, // TODO(cwallez@chromium.org): double terrible cmdbuf }; // Default to D3D12, Metal, Vulkan, OpenGL in that order as D3D12 and Metal are the preferred on // their respective platforms, and Vulkan is preferred to OpenGL #if defined(DAWN_ENABLE_BACKEND_D3D12) static wgpu::BackendType backendType = wgpu::BackendType::D3D12; #elif defined(DAWN_ENABLE_BACKEND_METAL) static wgpu::BackendType backendType = wgpu::BackendType::Metal; #elif defined(DAWN_ENABLE_BACKEND_VULKAN) static wgpu::BackendType backendType = wgpu::BackendType::Vulkan; #elif defined(DAWN_ENABLE_BACKEND_OPENGL) static wgpu::BackendType backendType = wgpu::BackendType::OpenGL; #else # error #endif static CmdBufType cmdBufType = CmdBufType::Terrible; static std::unique_ptr<dawn_native::Instance> instance; static utils::BackendBinding* binding = nullptr; static GLFWwindow* window = nullptr; static dawn_wire::WireServer* wireServer = nullptr; static dawn_wire::WireClient* wireClient = nullptr; static utils::TerribleCommandBuffer* c2sBuf = nullptr; static utils::TerribleCommandBuffer* s2cBuf = nullptr; wgpu::Device CreateCppDawnDevice() { if (GetEnvironmentVar("ANGLE_DEFAULT_PLATFORM").empty()) { SetEnvironmentVar("ANGLE_DEFAULT_PLATFORM", "swiftshader"); } glfwSetErrorCallback(PrintGLFWError); if (!glfwInit()) { return wgpu::Device(); } // Create the test window and discover adapters using it (esp. for OpenGL) utils::SetupGLFWWindowHintsForBackend(backendType); glfwWindowHint(GLFW_COCOA_RETINA_FRAMEBUFFER, GLFW_FALSE); window = glfwCreateWindow(640, 480, "Dawn window", nullptr, nullptr); if (!window) { return wgpu::Device(); } instance = std::make_unique<dawn_native::Instance>(); utils::DiscoverAdapter(instance.get(), window, backendType); // Get an adapter for the backend to use, and create the device. dawn_native::Adapter backendAdapter; { std::vector<dawn_native::Adapter> adapters = instance->GetAdapters(); auto adapterIt = std::find_if(adapters.begin(), adapters.end(), [](const dawn_native::Adapter adapter) -> bool { wgpu::AdapterProperties properties; adapter.GetProperties(&properties); return properties.backendType == backendType; }); ASSERT(adapterIt != adapters.end()); backendAdapter = *adapterIt; } WGPUDevice backendDevice = backendAdapter.CreateDevice(); DawnProcTable backendProcs = dawn_native::GetProcs(); binding = utils::CreateBinding(backendType, window, backendDevice); if (binding == nullptr) { return wgpu::Device(); } // Choose whether to use the backend procs and devices directly, or set up the wire. WGPUDevice cDevice = nullptr; DawnProcTable procs; switch (cmdBufType) { case CmdBufType::None: procs = backendProcs; cDevice = backendDevice; break; case CmdBufType::Terrible: { c2sBuf = new utils::TerribleCommandBuffer(); s2cBuf = new utils::TerribleCommandBuffer(); dawn_wire::WireServerDescriptor serverDesc = {}; serverDesc.procs = &backendProcs; serverDesc.serializer = s2cBuf; wireServer = new dawn_wire::WireServer(serverDesc); c2sBuf->SetHandler(wireServer); dawn_wire::WireClientDescriptor clientDesc = {}; clientDesc.serializer = c2sBuf; wireClient = new dawn_wire::WireClient(clientDesc); procs = dawn_wire::client::GetProcs(); s2cBuf->SetHandler(wireClient); auto deviceReservation = wireClient->ReserveDevice(); wireServer->InjectDevice(backendDevice, deviceReservation.id, deviceReservation.generation); cDevice = deviceReservation.device; } break; } dawnProcSetProcs(&procs); procs.deviceSetUncapturedErrorCallback(cDevice, PrintDeviceError, nullptr); return wgpu::Device::Acquire(cDevice); } uint64_t GetSwapChainImplementation() { return binding->GetSwapChainImplementation(); } wgpu::TextureFormat GetPreferredSwapChainTextureFormat() { DoFlush(); return static_cast<wgpu::TextureFormat>(binding->GetPreferredSwapChainTextureFormat()); } wgpu::SwapChain GetSwapChain(const wgpu::Device& device) { wgpu::SwapChainDescriptor swapChainDesc; swapChainDesc.implementation = GetSwapChainImplementation(); return device.CreateSwapChain(nullptr, &swapChainDesc); } wgpu::TextureView CreateDefaultDepthStencilView(const wgpu::Device& device) { wgpu::TextureDescriptor descriptor; descriptor.dimension = wgpu::TextureDimension::e2D; descriptor.size.width = 640; descriptor.size.height = 480; descriptor.size.depthOrArrayLayers = 1; descriptor.sampleCount = 1; descriptor.format = wgpu::TextureFormat::Depth24PlusStencil8; descriptor.mipLevelCount = 1; descriptor.usage = wgpu::TextureUsage::RenderAttachment; auto depthStencilTexture = device.CreateTexture(&descriptor); return depthStencilTexture.CreateView(); } bool InitSample(int argc, const char** argv) { for (int i = 1; i < argc; i++) { if (std::string("-b") == argv[i] || std::string("--backend") == argv[i]) { i++; if (i < argc && std::string("d3d12") == argv[i]) { backendType = wgpu::BackendType::D3D12; continue; } if (i < argc && std::string("metal") == argv[i]) { backendType = wgpu::BackendType::Metal; continue; } if (i < argc && std::string("null") == argv[i]) { backendType = wgpu::BackendType::Null; continue; } if (i < argc && std::string("opengl") == argv[i]) { backendType = wgpu::BackendType::OpenGL; continue; } if (i < argc && std::string("opengles") == argv[i]) { backendType = wgpu::BackendType::OpenGLES; continue; } if (i < argc && std::string("vulkan") == argv[i]) { backendType = wgpu::BackendType::Vulkan; continue; } fprintf(stderr, "--backend expects a backend name (opengl, opengles, metal, d3d12, null, " "vulkan)\n"); return false; } if (std::string("-c") == argv[i] || std::string("--command-buffer") == argv[i]) { i++; if (i < argc && std::string("none") == argv[i]) { cmdBufType = CmdBufType::None; continue; } if (i < argc && std::string("terrible") == argv[i]) { cmdBufType = CmdBufType::Terrible; continue; } fprintf(stderr, "--command-buffer expects a command buffer name (none, terrible)\n"); return false; } if (std::string("-h") == argv[i] || std::string("--help") == argv[i]) { printf("Usage: %s [-b BACKEND] [-c COMMAND_BUFFER]\n", argv[0]); printf(" BACKEND is one of: d3d12, metal, null, opengl, opengles, vulkan\n"); printf(" COMMAND_BUFFER is one of: none, terrible\n"); return false; } } return true; } void DoFlush() { if (cmdBufType == CmdBufType::Terrible) { bool c2sSuccess = c2sBuf->Flush(); bool s2cSuccess = s2cBuf->Flush(); ASSERT(c2sSuccess && s2cSuccess); } glfwPollEvents(); } bool ShouldQuit() { return glfwWindowShouldClose(window); } GLFWwindow* GetGLFWWindow() { return window; }