dolphin/Source/Core/VideoBackends/Vulkan/SwapChain.cpp

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// Copyright 2016 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#include "VideoBackends/Vulkan/SwapChain.h"
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#include <algorithm>
#include <cstdint>
#include "Common/Assert.h"
#include "Common/CommonFuncs.h"
#include "Common/Logging/Log.h"
#include "Common/MsgHandler.h"
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#include "VideoBackends/Vulkan/CommandBufferManager.h"
#include "VideoBackends/Vulkan/VulkanContext.h"
#if defined(VK_USE_PLATFORM_XLIB_KHR)
#include <X11/Xlib.h>
#elif defined(VK_USE_PLATFORM_XCB_KHR)
#include <X11/Xlib-xcb.h>
#include <X11/Xlib.h>
#endif
namespace Vulkan
{
SwapChain::SwapChain(void* native_handle, VkSurfaceKHR surface, bool vsync)
: m_native_handle(native_handle), m_surface(surface), m_vsync_enabled(vsync)
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{
}
SwapChain::~SwapChain()
{
DestroySwapChainImages();
DestroySwapChain();
DestroySurface();
}
VkSurfaceKHR SwapChain::CreateVulkanSurface(VkInstance instance, void* hwnd)
{
#if defined(VK_USE_PLATFORM_WIN32_KHR)
VkWin32SurfaceCreateInfoKHR surface_create_info = {
VK_STRUCTURE_TYPE_WIN32_SURFACE_CREATE_INFO_KHR, // VkStructureType sType
nullptr, // const void* pNext
0, // VkWin32SurfaceCreateFlagsKHR flags
nullptr, // HINSTANCE hinstance
reinterpret_cast<HWND>(hwnd) // HWND hwnd
};
VkSurfaceKHR surface;
VkResult res = vkCreateWin32SurfaceKHR(instance, &surface_create_info, nullptr, &surface);
if (res != VK_SUCCESS)
{
LOG_VULKAN_ERROR(res, "vkCreateWin32SurfaceKHR failed: ");
return VK_NULL_HANDLE;
}
return surface;
#elif defined(VK_USE_PLATFORM_XLIB_KHR)
// Assuming the display handles are compatible, or shared. This matches what we do in the
// GL backend, but it's not ideal.
Display* display = XOpenDisplay(nullptr);
VkXlibSurfaceCreateInfoKHR surface_create_info = {
VK_STRUCTURE_TYPE_XLIB_SURFACE_CREATE_INFO_KHR, // VkStructureType sType
nullptr, // const void* pNext
0, // VkXlibSurfaceCreateFlagsKHR flags
display, // Display* dpy
reinterpret_cast<Window>(hwnd) // Window window
};
VkSurfaceKHR surface;
VkResult res = vkCreateXlibSurfaceKHR(instance, &surface_create_info, nullptr, &surface);
if (res != VK_SUCCESS)
{
LOG_VULKAN_ERROR(res, "vkCreateXlibSurfaceKHR failed: ");
return VK_NULL_HANDLE;
}
return surface;
#elif defined(VK_USE_PLATFORM_XCB_KHR)
// If we ever switch to using xcb, we should pass the display handle as well.
Display* display = XOpenDisplay(nullptr);
xcb_connection_t* connection = XGetXCBConnection(display);
VkXcbSurfaceCreateInfoKHR surface_create_info = {
VK_STRUCTURE_TYPE_XCB_SURFACE_CREATE_INFO_KHR, // VkStructureType sType
nullptr, // const void* pNext
0, // VkXcbSurfaceCreateFlagsKHR flags
connection, // xcb_connection_t* connection
static_cast<xcb_window_t>(reinterpret_cast<uintptr_t>(hwnd)) // xcb_window_t window
};
VkSurfaceKHR surface;
VkResult res = vkCreateXcbSurfaceKHR(instance, &surface_create_info, nullptr, &surface);
if (res != VK_SUCCESS)
{
LOG_VULKAN_ERROR(res, "vkCreateXcbSurfaceKHR failed: ");
return VK_NULL_HANDLE;
}
return surface;
#elif defined(VK_USE_PLATFORM_ANDROID_KHR)
VkAndroidSurfaceCreateInfoKHR surface_create_info = {
VK_STRUCTURE_TYPE_ANDROID_SURFACE_CREATE_INFO_KHR, // VkStructureType sType
nullptr, // const void* pNext
0, // VkAndroidSurfaceCreateFlagsKHR flags
reinterpret_cast<ANativeWindow*>(hwnd) // ANativeWindow* window
};
VkSurfaceKHR surface;
VkResult res = vkCreateAndroidSurfaceKHR(instance, &surface_create_info, nullptr, &surface);
if (res != VK_SUCCESS)
{
LOG_VULKAN_ERROR(res, "vkCreateAndroidSurfaceKHR failed: ");
return VK_NULL_HANDLE;
}
return surface;
#else
return VK_NULL_HANDLE;
#endif
}
std::unique_ptr<SwapChain> SwapChain::Create(void* native_handle, VkSurfaceKHR surface, bool vsync)
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{
std::unique_ptr<SwapChain> swap_chain =
std::make_unique<SwapChain>(native_handle, surface, vsync);
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if (!swap_chain->CreateSwapChain() || !swap_chain->CreateRenderPass() ||
!swap_chain->SetupSwapChainImages())
{
return nullptr;
}
return swap_chain;
}
bool SwapChain::SelectSurfaceFormat()
{
u32 format_count;
VkResult res = vkGetPhysicalDeviceSurfaceFormatsKHR(g_vulkan_context->GetPhysicalDevice(),
m_surface, &format_count, nullptr);
if (res != VK_SUCCESS || format_count == 0)
{
LOG_VULKAN_ERROR(res, "vkGetPhysicalDeviceSurfaceFormatsKHR failed: ");
return false;
}
std::vector<VkSurfaceFormatKHR> surface_formats(format_count);
res = vkGetPhysicalDeviceSurfaceFormatsKHR(g_vulkan_context->GetPhysicalDevice(), m_surface,
&format_count, surface_formats.data());
_assert_(res == VK_SUCCESS);
// If there is a single undefined surface format, the device doesn't care, so we'll just use RGBA
if (surface_formats[0].format == VK_FORMAT_UNDEFINED)
{
m_surface_format.format = VK_FORMAT_R8G8B8A8_UNORM;
m_surface_format.colorSpace = VK_COLOR_SPACE_SRGB_NONLINEAR_KHR;
return true;
}
// Use the first surface format, just use what it prefers.
// Some drivers seem to return a SRGB format here (Intel Mesa).
// This results in gamma correction when presenting to the screen, which we don't want.
// Use a linear format instead, if this is the case.
m_surface_format.format = Util::GetLinearFormat(surface_formats[0].format);
m_surface_format.colorSpace = surface_formats[0].colorSpace;
return true;
}
bool SwapChain::SelectPresentMode()
{
VkResult res;
u32 mode_count;
res = vkGetPhysicalDeviceSurfacePresentModesKHR(g_vulkan_context->GetPhysicalDevice(), m_surface,
&mode_count, nullptr);
if (res != VK_SUCCESS || mode_count == 0)
{
LOG_VULKAN_ERROR(res, "vkGetPhysicalDeviceSurfaceFormatsKHR failed: ");
return false;
}
std::vector<VkPresentModeKHR> present_modes(mode_count);
res = vkGetPhysicalDeviceSurfacePresentModesKHR(g_vulkan_context->GetPhysicalDevice(), m_surface,
&mode_count, present_modes.data());
_assert_(res == VK_SUCCESS);
// Checks if a particular mode is supported, if it is, returns that mode.
auto CheckForMode = [&present_modes](VkPresentModeKHR check_mode) {
auto it = std::find_if(present_modes.begin(), present_modes.end(),
[check_mode](VkPresentModeKHR mode) { return check_mode == mode; });
return it != present_modes.end();
};
// If vsync is enabled, use VK_PRESENT_MODE_FIFO_KHR.
// This check should not fail with conforming drivers, as the FIFO present mode is mandated by
// the specification (VK_KHR_swapchain). In case it isn't though, fall through to any other mode.
if (m_vsync_enabled && CheckForMode(VK_PRESENT_MODE_FIFO_KHR))
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{
m_present_mode = VK_PRESENT_MODE_FIFO_KHR;
return true;
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}
// Prefer screen-tearing, if possible, for lowest latency.
if (CheckForMode(VK_PRESENT_MODE_IMMEDIATE_KHR))
{
m_present_mode = VK_PRESENT_MODE_IMMEDIATE_KHR;
return true;
}
// Use optimized-vsync above vsync.
if (CheckForMode(VK_PRESENT_MODE_MAILBOX_KHR))
{
m_present_mode = VK_PRESENT_MODE_MAILBOX_KHR;
return true;
}
// Fall back to whatever is available.
m_present_mode = present_modes[0];
return true;
}
bool SwapChain::CreateRenderPass()
{
// render pass for rendering to the swap chain
m_render_pass = g_object_cache->GetRenderPass(m_surface_format.format, VK_FORMAT_UNDEFINED, 1,
VK_ATTACHMENT_LOAD_OP_CLEAR);
return m_render_pass != VK_NULL_HANDLE;
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}
bool SwapChain::CreateSwapChain()
{
// Look up surface properties to determine image count and dimensions
VkSurfaceCapabilitiesKHR surface_capabilities;
VkResult res = vkGetPhysicalDeviceSurfaceCapabilitiesKHR(g_vulkan_context->GetPhysicalDevice(),
m_surface, &surface_capabilities);
if (res != VK_SUCCESS)
{
LOG_VULKAN_ERROR(res, "vkGetPhysicalDeviceSurfaceCapabilitiesKHR failed: ");
return false;
}
// Select swap chain format and present mode
if (!SelectSurfaceFormat() || !SelectPresentMode())
return false;
// Select number of images in swap chain, we prefer one buffer in the background to work on
uint32_t image_count = surface_capabilities.minImageCount + 1;
// maxImageCount can be zero, in which case there isn't an upper limit on the number of buffers.
if (surface_capabilities.maxImageCount > 0)
image_count = std::min(image_count, surface_capabilities.maxImageCount);
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// Determine the dimensions of the swap chain. Values of -1 indicate the size we specify here
// determines window size?
VkExtent2D size = surface_capabilities.currentExtent;
if (size.width == UINT32_MAX)
{
size.width = std::min(std::max(surface_capabilities.minImageExtent.width, 640u),
surface_capabilities.maxImageExtent.width);
size.height = std::min(std::max(surface_capabilities.minImageExtent.height, 480u),
surface_capabilities.maxImageExtent.height);
}
// Prefer identity transform if possible
VkSurfaceTransformFlagBitsKHR transform = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
if (!(surface_capabilities.supportedTransforms & VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR))
transform = surface_capabilities.currentTransform;
// Select swap chain flags, we only need a colour attachment
VkImageUsageFlags image_usage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
if (!(surface_capabilities.supportedUsageFlags & VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT))
{
ERROR_LOG(VIDEO, "Vulkan: Swap chain does not support usage as color attachment");
return false;
}
// Select the number of image layers for Quad-Buffered stereoscopy
uint32_t image_layers = g_ActiveConfig.stereo_mode == StereoMode::QuadBuffer ? 2 : 1;
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// Store the old/current swap chain when recreating for resize
VkSwapchainKHR old_swap_chain = m_swap_chain;
// Now we can actually create the swap chain
VkSwapchainCreateInfoKHR swap_chain_info = {VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR,
nullptr,
0,
m_surface,
image_count,
m_surface_format.format,
m_surface_format.colorSpace,
size,
image_layers,
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image_usage,
VK_SHARING_MODE_EXCLUSIVE,
0,
nullptr,
transform,
VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR,
m_present_mode,
VK_TRUE,
old_swap_chain};
std::array<uint32_t, 2> indices = {{
g_vulkan_context->GetGraphicsQueueFamilyIndex(),
g_vulkan_context->GetPresentQueueFamilyIndex(),
}};
if (g_vulkan_context->GetGraphicsQueueFamilyIndex() !=
g_vulkan_context->GetPresentQueueFamilyIndex())
{
swap_chain_info.imageSharingMode = VK_SHARING_MODE_CONCURRENT;
swap_chain_info.queueFamilyIndexCount = 2;
swap_chain_info.pQueueFamilyIndices = indices.data();
}
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res =
vkCreateSwapchainKHR(g_vulkan_context->GetDevice(), &swap_chain_info, nullptr, &m_swap_chain);
if (res != VK_SUCCESS)
{
LOG_VULKAN_ERROR(res, "vkCreateSwapchainKHR failed: ");
return false;
}
// Now destroy the old swap chain, since it's been recreated.
// We can do this immediately since all work should have been completed before calling resize.
if (old_swap_chain != VK_NULL_HANDLE)
vkDestroySwapchainKHR(g_vulkan_context->GetDevice(), old_swap_chain, nullptr);
m_width = size.width;
m_height = size.height;
m_layers = image_layers;
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return true;
}
bool SwapChain::SetupSwapChainImages()
{
_assert_(m_swap_chain_images.empty());
uint32_t image_count;
VkResult res =
vkGetSwapchainImagesKHR(g_vulkan_context->GetDevice(), m_swap_chain, &image_count, nullptr);
if (res != VK_SUCCESS)
{
LOG_VULKAN_ERROR(res, "vkGetSwapchainImagesKHR failed: ");
return false;
}
std::vector<VkImage> images(image_count);
res = vkGetSwapchainImagesKHR(g_vulkan_context->GetDevice(), m_swap_chain, &image_count,
images.data());
_assert_(res == VK_SUCCESS);
m_swap_chain_images.reserve(image_count);
for (uint32_t i = 0; i < image_count; i++)
{
SwapChainImage image;
image.image = images[i];
// Create texture object, which creates a view of the backbuffer
image.texture = Texture2D::CreateFromExistingImage(
m_width, m_height, 1, 1, m_surface_format.format, VK_SAMPLE_COUNT_1_BIT,
VK_IMAGE_VIEW_TYPE_2D, image.image);
VkImageView view = image.texture->GetView();
VkFramebufferCreateInfo framebuffer_info = {VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO,
nullptr,
0,
m_render_pass,
1,
&view,
m_width,
m_height,
m_layers};
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res = vkCreateFramebuffer(g_vulkan_context->GetDevice(), &framebuffer_info, nullptr,
&image.framebuffer);
if (res != VK_SUCCESS)
{
LOG_VULKAN_ERROR(res, "vkCreateFramebuffer failed: ");
return false;
}
m_swap_chain_images.emplace_back(std::move(image));
}
return true;
}
void SwapChain::DestroySwapChainImages()
{
for (const auto& it : m_swap_chain_images)
{
// Images themselves are cleaned up by the swap chain object
vkDestroyFramebuffer(g_vulkan_context->GetDevice(), it.framebuffer, nullptr);
}
m_swap_chain_images.clear();
}
void SwapChain::DestroySwapChain()
{
if (m_swap_chain == VK_NULL_HANDLE)
return;
vkDestroySwapchainKHR(g_vulkan_context->GetDevice(), m_swap_chain, nullptr);
m_swap_chain = VK_NULL_HANDLE;
}
VkResult SwapChain::AcquireNextImage(VkSemaphore available_semaphore)
{
VkResult res =
vkAcquireNextImageKHR(g_vulkan_context->GetDevice(), m_swap_chain, UINT64_MAX,
available_semaphore, VK_NULL_HANDLE, &m_current_swap_chain_image_index);
if (res != VK_SUCCESS && res != VK_ERROR_OUT_OF_DATE_KHR && res != VK_SUBOPTIMAL_KHR)
LOG_VULKAN_ERROR(res, "vkAcquireNextImageKHR failed: ");
return res;
}
bool SwapChain::ResizeSwapChain()
{
DestroySwapChainImages();
if (!CreateSwapChain() || !SetupSwapChainImages())
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{
PanicAlert("Failed to re-configure swap chain images, this is fatal (for now)");
return false;
}
return true;
}
bool SwapChain::RecreateSwapChain()
{
DestroySwapChainImages();
DestroySwapChain();
if (!CreateSwapChain() || !SetupSwapChainImages())
{
PanicAlert("Failed to re-configure swap chain images, this is fatal (for now)");
return false;
}
return true;
}
bool SwapChain::SetVSync(bool enabled)
{
if (m_vsync_enabled == enabled)
return true;
// Recreate the swap chain with the new present mode.
m_vsync_enabled = enabled;
return RecreateSwapChain();
}
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bool SwapChain::RecreateSurface(void* native_handle)
{
// Destroy the old swap chain, images, and surface.
DestroySwapChainImages();
DestroySwapChain();
DestroySurface();
// Re-create the surface with the new native handle
m_native_handle = native_handle;
m_surface = CreateVulkanSurface(g_vulkan_context->GetVulkanInstance(), native_handle);
if (m_surface == VK_NULL_HANDLE)
return false;
// Finally re-create the swap chain
if (!CreateSwapChain() || !SetupSwapChainImages() || !CreateRenderPass())
return false;
return true;
}
void SwapChain::DestroySurface()
{
vkDestroySurfaceKHR(g_vulkan_context->GetVulkanInstance(), m_surface, nullptr);
m_surface = VK_NULL_HANDLE;
}
}