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// Copyright 2019 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <algorithm>
#include <array>
#include <limits>
#include <vector>
#include "common/assert.h"
#include "common/logging/log.h"
#include "core/core.h"
#include "core/frontend/framebuffer_layout.h"
#include "video_core/renderer_vulkan/declarations.h"
#include "video_core/renderer_vulkan/vk_device.h"
#include "video_core/renderer_vulkan/vk_resource_manager.h"
#include "video_core/renderer_vulkan/vk_swapchain.h"
namespace Vulkan {
namespace {
vk::SurfaceFormatKHR ChooseSwapSurfaceFormat(const std::vector<vk::SurfaceFormatKHR>& formats) {
if (formats.size() == 1 && formats[0].format == vk::Format::eUndefined) {
return {vk::Format::eB8G8R8A8Unorm, vk::ColorSpaceKHR::eSrgbNonlinear};
}
const auto& found = std::find_if(formats.begin(), formats.end(), [](const auto& format) {
return format.format == vk::Format::eB8G8R8A8Unorm &&
format.colorSpace == vk::ColorSpaceKHR::eSrgbNonlinear;
});
return found != formats.end() ? *found : formats[0];
}
vk::PresentModeKHR ChooseSwapPresentMode(const std::vector<vk::PresentModeKHR>& modes) {
// Mailbox doesn't lock the application like fifo (vsync), prefer it
const auto& found = std::find_if(modes.begin(), modes.end(), [](const auto& mode) {
return mode == vk::PresentModeKHR::eMailbox;
});
return found != modes.end() ? *found : vk::PresentModeKHR::eFifo;
}
vk::Extent2D ChooseSwapExtent(const vk::SurfaceCapabilitiesKHR& capabilities, u32 width,
u32 height) {
constexpr auto undefined_size{std::numeric_limits<u32>::max()};
if (capabilities.currentExtent.width != undefined_size) {
return capabilities.currentExtent;
}
vk::Extent2D extent = {width, height};
extent.width = std::max(capabilities.minImageExtent.width,
std::min(capabilities.maxImageExtent.width, extent.width));
extent.height = std::max(capabilities.minImageExtent.height,
std::min(capabilities.maxImageExtent.height, extent.height));
return extent;
}
} // namespace
VKSwapchain::VKSwapchain(vk::SurfaceKHR surface, const VKDevice& device)
: surface{surface}, device{device} {}
VKSwapchain::~VKSwapchain() = default;
void VKSwapchain::Create(u32 width, u32 height) {
const auto dev = device.GetLogical();
const auto& dld = device.GetDispatchLoader();
const auto physical_device = device.GetPhysical();
const vk::SurfaceCapabilitiesKHR capabilities{
physical_device.getSurfaceCapabilitiesKHR(surface, dld)};
if (capabilities.maxImageExtent.width == 0 || capabilities.maxImageExtent.height == 0) {
return;
}
dev.waitIdle(dld);
Destroy();
CreateSwapchain(capabilities, width, height);
CreateSemaphores();
CreateImageViews();
fences.resize(image_count, nullptr);
}
void VKSwapchain::AcquireNextImage() {
const auto dev{device.GetLogical()};
const auto& dld{device.GetDispatchLoader()};
dev.acquireNextImageKHR(*swapchain, std::numeric_limits<u64>::max(),
*present_semaphores[frame_index], {}, &image_index, dld);
if (auto& fence = fences[image_index]; fence) {
fence->Wait();
fence->Release();
fence = nullptr;
}
}
bool VKSwapchain::Present(vk::Semaphore render_semaphore, VKFence& fence) {
const vk::Semaphore present_semaphore{*present_semaphores[frame_index]};
const std::array<vk::Semaphore, 2> semaphores{present_semaphore, render_semaphore};
const u32 wait_semaphore_count{render_semaphore ? 2U : 1U};
const auto& dld{device.GetDispatchLoader()};
const auto present_queue{device.GetPresentQueue()};
bool recreated = false;
const vk::PresentInfoKHR present_info(wait_semaphore_count, semaphores.data(), 1,
&swapchain.get(), &image_index, {});
switch (const auto result = present_queue.presentKHR(&present_info, dld); result) {
case vk::Result::eSuccess:
break;
case vk::Result::eErrorOutOfDateKHR:
if (current_width > 0 && current_height > 0) {
Create(current_width, current_height);
recreated = true;
}
break;
default:
LOG_CRITICAL(Render_Vulkan, "Vulkan failed to present swapchain due to {}!",
vk::to_string(result));
UNREACHABLE();
}
ASSERT(fences[image_index] == nullptr);
fences[image_index] = &fence;
frame_index = (frame_index + 1) % image_count;
return recreated;
}
bool VKSwapchain::HasFramebufferChanged(const Layout::FramebufferLayout& framebuffer) const {
// TODO(Rodrigo): Handle framebuffer pixel format changes
return framebuffer.width != current_width || framebuffer.height != current_height;
}
void VKSwapchain::CreateSwapchain(const vk::SurfaceCapabilitiesKHR& capabilities, u32 width,
u32 height) {
const auto dev{device.GetLogical()};
const auto& dld{device.GetDispatchLoader()};
const auto physical_device{device.GetPhysical()};
const std::vector<vk::SurfaceFormatKHR> formats{
physical_device.getSurfaceFormatsKHR(surface, dld)};
const std::vector<vk::PresentModeKHR> present_modes{
physical_device.getSurfacePresentModesKHR(surface, dld)};
const vk::SurfaceFormatKHR surface_format{ChooseSwapSurfaceFormat(formats)};
const vk::PresentModeKHR present_mode{ChooseSwapPresentMode(present_modes)};
extent = ChooseSwapExtent(capabilities, width, height);
current_width = extent.width;
current_height = extent.height;
u32 requested_image_count{capabilities.minImageCount + 1};
if (capabilities.maxImageCount > 0 && requested_image_count > capabilities.maxImageCount) {
requested_image_count = capabilities.maxImageCount;
}
vk::SwapchainCreateInfoKHR swapchain_ci(
{}, surface, requested_image_count, surface_format.format, surface_format.colorSpace,
extent, 1, vk::ImageUsageFlagBits::eColorAttachment, {}, {}, {},
capabilities.currentTransform, vk::CompositeAlphaFlagBitsKHR::eOpaque, present_mode, false,
{});
const u32 graphics_family{device.GetGraphicsFamily()};
const u32 present_family{device.GetPresentFamily()};
const std::array<u32, 2> queue_indices{graphics_family, present_family};
if (graphics_family != present_family) {
swapchain_ci.imageSharingMode = vk::SharingMode::eConcurrent;
swapchain_ci.queueFamilyIndexCount = static_cast<u32>(queue_indices.size());
swapchain_ci.pQueueFamilyIndices = queue_indices.data();
} else {
swapchain_ci.imageSharingMode = vk::SharingMode::eExclusive;
}
swapchain = dev.createSwapchainKHRUnique(swapchain_ci, nullptr, dld);
images = dev.getSwapchainImagesKHR(*swapchain, dld);
image_count = static_cast<u32>(images.size());
image_format = surface_format.format;
}
void VKSwapchain::CreateSemaphores() {
const auto dev{device.GetLogical()};
const auto& dld{device.GetDispatchLoader()};
present_semaphores.resize(image_count);
for (std::size_t i = 0; i < image_count; i++) {
present_semaphores[i] = dev.createSemaphoreUnique({}, nullptr, dld);
}
}
void VKSwapchain::CreateImageViews() {
const auto dev{device.GetLogical()};
const auto& dld{device.GetDispatchLoader()};
image_views.resize(image_count);
for (std::size_t i = 0; i < image_count; i++) {
const vk::ImageViewCreateInfo image_view_ci({}, images[i], vk::ImageViewType::e2D,
image_format, {},
{vk::ImageAspectFlagBits::eColor, 0, 1, 0, 1});
image_views[i] = dev.createImageViewUnique(image_view_ci, nullptr, dld);
}
}
void VKSwapchain::Destroy() {
frame_index = 0;
present_semaphores.clear();
framebuffers.clear();
image_views.clear();
swapchain.reset();
}
} // namespace Vulkan
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