| // 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 "dawn/samples/SampleUtils.h" |
| |
| #include <algorithm> |
| #include <cstring> |
| #include <memory> |
| #include <string> |
| #include <vector> |
| |
| #include "GLFW/glfw3.h" |
| #include "dawn/common/Assert.h" |
| #include "dawn/common/Log.h" |
| #include "dawn/common/Platform.h" |
| #include "dawn/common/SystemUtils.h" |
| #include "dawn/dawn_proc.h" |
| #include "dawn/dawn_wsi.h" |
| #include "dawn/native/DawnNative.h" |
| #include "dawn/utils/TerribleCommandBuffer.h" |
| #include "dawn/wire/WireClient.h" |
| #include "dawn/wire/WireServer.h" |
| #include "webgpu/webgpu_glfw.h" |
| |
| 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_OPENGLES) |
| static wgpu::BackendType backendType = wgpu::BackendType::OpenGLES; |
| #elif defined(DAWN_ENABLE_BACKEND_DESKTOP_GL) |
| static wgpu::BackendType backendType = wgpu::BackendType::OpenGL; |
| #else |
| #error |
| #endif |
| |
| static CmdBufType cmdBufType = CmdBufType::Terrible; |
| static std::unique_ptr<dawn::native::Instance> instance; |
| static wgpu::SwapChain swapChain; |
| |
| 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() { |
| ScopedEnvironmentVar angleDefaultPlatform; |
| if (GetEnvironmentVar("ANGLE_DEFAULT_PLATFORM").first.empty()) { |
| angleDefaultPlatform.Set("ANGLE_DEFAULT_PLATFORM", "swiftshader"); |
| } |
| |
| glfwSetErrorCallback(PrintGLFWError); |
| if (!glfwInit()) { |
| return wgpu::Device(); |
| } |
| |
| // Create the test window with no client API. |
| glfwWindowHint(GLFW_CLIENT_API, GLFW_NO_API); |
| 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>(); |
| instance->DiscoverDefaultAdapters(); |
| |
| // 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(); |
| |
| // Create the swapchain |
| auto surfaceChainedDesc = wgpu::glfw::SetupWindowAndGetSurfaceDescriptor(window); |
| WGPUSurfaceDescriptor surfaceDesc; |
| surfaceDesc.nextInChain = reinterpret_cast<WGPUChainedStruct*>(surfaceChainedDesc.get()); |
| WGPUSurface surface = backendProcs.instanceCreateSurface(instance->Get(), &surfaceDesc); |
| |
| WGPUSwapChainDescriptor swapChainDesc; |
| swapChainDesc.usage = WGPUTextureUsage_RenderAttachment; |
| swapChainDesc.format = static_cast<WGPUTextureFormat>(GetPreferredSwapChainTextureFormat()); |
| swapChainDesc.width = 640; |
| swapChainDesc.height = 480; |
| swapChainDesc.presentMode = WGPUPresentMode_Mailbox; |
| swapChainDesc.implementation = 0; |
| WGPUSwapChain backendSwapChain = |
| backendProcs.deviceCreateSwapChain(backendDevice, surface, &swapChainDesc); |
| |
| // Choose whether to use the backend procs and devices/swapchains directly, or set up the wire. |
| WGPUDevice cDevice = nullptr; |
| DawnProcTable procs; |
| |
| switch (cmdBufType) { |
| case CmdBufType::None: |
| procs = backendProcs; |
| cDevice = backendDevice; |
| swapChain = wgpu::SwapChain::Acquire(backendSwapChain); |
| 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; |
| |
| auto swapChainReservation = wireClient->ReserveSwapChain(cDevice); |
| wireServer->InjectSwapChain(backendSwapChain, swapChainReservation.id, |
| swapChainReservation.generation, deviceReservation.id, |
| deviceReservation.generation); |
| swapChain = wgpu::SwapChain::Acquire(swapChainReservation.swapchain); |
| } break; |
| } |
| |
| dawnProcSetProcs(&procs); |
| procs.deviceSetUncapturedErrorCallback(cDevice, PrintDeviceError, nullptr); |
| return wgpu::Device::Acquire(cDevice); |
| } |
| |
| wgpu::TextureFormat GetPreferredSwapChainTextureFormat() { |
| // TODO(dawn:1362): Return the adapter's preferred format when implemented. |
| return wgpu::TextureFormat::BGRA8Unorm; |
| } |
| |
| wgpu::SwapChain GetSwapChain() { |
| return swapChain; |
| } |
| |
| 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; |
| } |
| } |
| |
| // TODO(dawn:810): Reenable once the OpenGL(ES) backend is able to create its own context such |
| // that it can use surface-based swapchains. |
| if (backendType == wgpu::BackendType::OpenGL || backendType == wgpu::BackendType::OpenGLES) { |
| fprintf(stderr, |
| "The OpenGL(ES) backend is temporarily not supported for samples. See " |
| "https://crbug.com/dawn/810"); |
| 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; |
| } |