| // Copyright 2018 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_native/vulkan/NativeSwapChainImplVk.h" |
| |
| #include "dawn_native/vulkan/DeviceVk.h" |
| #include "dawn_native/vulkan/FencedDeleter.h" |
| #include "dawn_native/vulkan/TextureVk.h" |
| |
| #include <limits> |
| |
| namespace dawn_native { namespace vulkan { |
| |
| namespace { |
| |
| bool chooseSwapPresentMode(const std::vector<VkPresentModeKHR>& availablePresentModes, |
| bool turnOffVsync, |
| VkPresentModeKHR* presentMode) { |
| if (turnOffVsync) { |
| for (const auto& availablePresentMode : availablePresentModes) { |
| if (availablePresentMode == VK_PRESENT_MODE_IMMEDIATE_KHR) { |
| *presentMode = availablePresentMode; |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| *presentMode = VK_PRESENT_MODE_FIFO_KHR; |
| return true; |
| } |
| |
| bool ChooseSurfaceConfig(const VulkanSurfaceInfo& info, |
| NativeSwapChainImpl::ChosenConfig* config, |
| bool turnOffVsync) { |
| VkPresentModeKHR presentMode; |
| if (!chooseSwapPresentMode(info.presentModes, turnOffVsync, &presentMode)) { |
| return false; |
| } |
| // TODO(crbug.com/dawn/269): For now this is hardcoded to what works with one NVIDIA |
| // driver. Need to generalize |
| config->nativeFormat = VK_FORMAT_B8G8R8A8_UNORM; |
| config->colorSpace = VK_COLOR_SPACE_SRGB_NONLINEAR_KHR; |
| config->format = wgpu::TextureFormat::BGRA8Unorm; |
| config->minImageCount = 3; |
| // TODO(crbug.com/dawn/269): This is upside down compared to what we want, at least |
| // on Linux |
| config->preTransform = info.capabilities.currentTransform; |
| config->presentMode = presentMode; |
| config->compositeAlpha = VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR; |
| |
| return true; |
| } |
| } // anonymous namespace |
| |
| NativeSwapChainImpl::NativeSwapChainImpl(Device* device, VkSurfaceKHR surface) |
| : mSurface(surface), mDevice(device) { |
| // Call this immediately, so that BackendBinding::GetPreferredSwapChainTextureFormat |
| // will return a correct result before a SwapChain is created. |
| UpdateSurfaceConfig(); |
| } |
| |
| NativeSwapChainImpl::~NativeSwapChainImpl() { |
| if (mSwapChain != VK_NULL_HANDLE) { |
| mDevice->GetFencedDeleter()->DeleteWhenUnused(mSwapChain); |
| mSwapChain = VK_NULL_HANDLE; |
| } |
| if (mSurface != VK_NULL_HANDLE) { |
| mDevice->GetFencedDeleter()->DeleteWhenUnused(mSurface); |
| mSurface = VK_NULL_HANDLE; |
| } |
| } |
| |
| void NativeSwapChainImpl::UpdateSurfaceConfig() { |
| if (mDevice->ConsumedError(GatherSurfaceInfo(*ToBackend(mDevice->GetAdapter()), mSurface), |
| &mInfo)) { |
| ASSERT(false); |
| } |
| |
| if (!ChooseSurfaceConfig(mInfo, &mConfig, mDevice->IsToggleEnabled(Toggle::TurnOffVsync))) { |
| ASSERT(false); |
| } |
| } |
| |
| void NativeSwapChainImpl::Init(DawnWSIContextVulkan* /*context*/) { |
| UpdateSurfaceConfig(); |
| } |
| |
| DawnSwapChainError NativeSwapChainImpl::Configure(WGPUTextureFormat format, |
| WGPUTextureUsage usage, |
| uint32_t width, |
| uint32_t height) { |
| UpdateSurfaceConfig(); |
| |
| ASSERT(mInfo.capabilities.minImageExtent.width <= width); |
| ASSERT(mInfo.capabilities.maxImageExtent.width >= width); |
| ASSERT(mInfo.capabilities.minImageExtent.height <= height); |
| ASSERT(mInfo.capabilities.maxImageExtent.height >= height); |
| |
| ASSERT(format == static_cast<WGPUTextureFormat>(GetPreferredFormat())); |
| // TODO(crbug.com/dawn/269): need to check usage works too |
| |
| // Create the swapchain with the configuration we chose |
| VkSwapchainKHR oldSwapchain = mSwapChain; |
| VkSwapchainCreateInfoKHR createInfo; |
| createInfo.sType = VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR; |
| createInfo.pNext = nullptr; |
| createInfo.flags = 0; |
| createInfo.surface = mSurface; |
| createInfo.minImageCount = mConfig.minImageCount; |
| createInfo.imageFormat = mConfig.nativeFormat; |
| createInfo.imageColorSpace = mConfig.colorSpace; |
| createInfo.imageExtent.width = width; |
| createInfo.imageExtent.height = height; |
| createInfo.imageArrayLayers = 1; |
| createInfo.imageUsage = VulkanImageUsage(static_cast<wgpu::TextureUsage>(usage), |
| mDevice->GetValidInternalFormat(mConfig.format)); |
| createInfo.imageSharingMode = VK_SHARING_MODE_EXCLUSIVE; |
| createInfo.queueFamilyIndexCount = 0; |
| createInfo.pQueueFamilyIndices = nullptr; |
| createInfo.preTransform = mConfig.preTransform; |
| createInfo.compositeAlpha = mConfig.compositeAlpha; |
| createInfo.presentMode = mConfig.presentMode; |
| createInfo.clipped = false; |
| createInfo.oldSwapchain = oldSwapchain; |
| |
| if (mDevice->fn.CreateSwapchainKHR(mDevice->GetVkDevice(), &createInfo, nullptr, |
| &*mSwapChain) != VK_SUCCESS) { |
| ASSERT(false); |
| } |
| |
| // Gather the swapchain's images. Implementations are allowed to return more images than the |
| // number we asked for. |
| uint32_t count = 0; |
| if (mDevice->fn.GetSwapchainImagesKHR(mDevice->GetVkDevice(), mSwapChain, &count, |
| nullptr) != VK_SUCCESS) { |
| ASSERT(false); |
| } |
| |
| ASSERT(count >= mConfig.minImageCount); |
| mSwapChainImages.resize(count); |
| if (mDevice->fn.GetSwapchainImagesKHR(mDevice->GetVkDevice(), mSwapChain, &count, |
| AsVkArray(mSwapChainImages.data())) != VK_SUCCESS) { |
| ASSERT(false); |
| } |
| |
| if (oldSwapchain != VK_NULL_HANDLE) { |
| mDevice->GetFencedDeleter()->DeleteWhenUnused(oldSwapchain); |
| } |
| |
| return DAWN_SWAP_CHAIN_NO_ERROR; |
| } |
| |
| DawnSwapChainError NativeSwapChainImpl::GetNextTexture(DawnSwapChainNextTexture* nextTexture) { |
| // Transiently create a semaphore that will be signaled when the presentation engine is done |
| // with the swapchain image. Further operations on the image will wait for this semaphore. |
| VkSemaphore semaphore = VK_NULL_HANDLE; |
| { |
| VkSemaphoreCreateInfo createInfo; |
| createInfo.sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO; |
| createInfo.pNext = nullptr; |
| createInfo.flags = 0; |
| if (mDevice->fn.CreateSemaphore(mDevice->GetVkDevice(), &createInfo, nullptr, |
| &*semaphore) != VK_SUCCESS) { |
| ASSERT(false); |
| } |
| } |
| |
| if (mDevice->fn.AcquireNextImageKHR(mDevice->GetVkDevice(), mSwapChain, |
| std::numeric_limits<uint64_t>::max(), semaphore, |
| VkFence{}, &mLastImageIndex) != VK_SUCCESS) { |
| ASSERT(false); |
| } |
| |
| nextTexture->texture.u64 = |
| #if defined(DAWN_PLATFORM_64_BIT) |
| reinterpret_cast<uint64_t> |
| #endif |
| (*mSwapChainImages[mLastImageIndex]); |
| mDevice->GetPendingRecordingContext()->waitSemaphores.push_back(semaphore); |
| |
| return DAWN_SWAP_CHAIN_NO_ERROR; |
| } |
| |
| DawnSwapChainError NativeSwapChainImpl::Present() { |
| // This assumes that the image has already been transitioned to the PRESENT layout and |
| // writes were made available to the stage. |
| |
| // Assuming that the present queue is the same as the graphics queue, the proper |
| // synchronization has already been done on the queue so we don't need to wait on any |
| // semaphores. |
| VkPresentInfoKHR presentInfo; |
| presentInfo.sType = VK_STRUCTURE_TYPE_PRESENT_INFO_KHR; |
| presentInfo.pNext = nullptr; |
| presentInfo.waitSemaphoreCount = 0; |
| presentInfo.pWaitSemaphores = nullptr; |
| presentInfo.swapchainCount = 1; |
| presentInfo.pSwapchains = &*mSwapChain; |
| presentInfo.pImageIndices = &mLastImageIndex; |
| presentInfo.pResults = nullptr; |
| |
| VkQueue queue = mDevice->GetQueue(); |
| if (mDevice->fn.QueuePresentKHR(queue, &presentInfo) != VK_SUCCESS) { |
| ASSERT(false); |
| } |
| |
| return DAWN_SWAP_CHAIN_NO_ERROR; |
| } |
| |
| wgpu::TextureFormat NativeSwapChainImpl::GetPreferredFormat() const { |
| return mConfig.format; |
| } |
| |
| }} // namespace dawn_native::vulkan |
