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vulkan/wayland: Use mailbox present mode. 

FIFO can stall when other windows obscure the main window.
This commit is contained in:
BearOso 2025-01-24 13:10:26 -06:00
parent 5df649d49a
commit 191cdf462a
3 changed files with 24 additions and 11 deletions
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2
common/video/vulkan/vulkan_context.cpp
View File

@ -123,6 +123,7 @@ bool Context::init_Xlib()
if (!instance)
return false;
platform_name = "xlib";
return init();
}
@ -144,6 +145,7 @@ bool Context::init_wayland()
if (!instance)
return false;
platform_name = "wayland";
return init();
}

1
common/video/vulkan/vulkan_context.hpp
View File

@ -55,6 +55,7 @@ class Context
vk::PhysicalDevice physical_device;
vk::PhysicalDeviceProperties physical_device_props;
vk::UniqueSurfaceKHR surface;
std::string platform_name;
private:
bool init_vma();

32
common/video/vulkan/vulkan_swapchain.cpp
View File

@ -105,9 +105,13 @@ static bool vector_find(std::vector<T> haystack, T&& needle)
vk::PresentModeKHR Swapchain::get_present_mode() {
auto present_mode = vk::PresentModeKHR::eFifo;
if (!vsync) {
if (context.platform_name == "wayland")
{
if (supports_mailbox)
present_mode = vk::PresentModeKHR::eMailbox;
}
if (!vsync) {
if (supports_immediate)
present_mode = vk::PresentModeKHR::eImmediate;
}
@ -156,6 +160,13 @@ bool Swapchain::create()
frames.clear();
image_data.clear();
auto present_modes = physical_device.getSurfacePresentModesKHR(surface).value;
for (auto &mode : present_modes)
{
if (mode == vk::PresentModeKHR::eMailbox)
supports_mailbox = true;
}
auto surface_capabilities = physical_device.getSurfaceCapabilitiesKHR(surface).value;
if (desired_latency == - 1 || (int)surface_capabilities.minImageCount > desired_latency)
@ -185,7 +196,15 @@ bool Swapchain::create()
extents.width = desired_width;
extents.height = desired_height;
}
else if (extents.width < 1 || extents.height < 1)
extents.width = std::clamp(extents.width,
surface_capabilities.minImageExtent.width,
surface_capabilities.maxImageExtent.width);
extents.height = std::clamp(extents.height,
surface_capabilities.minImageExtent.height,
surface_capabilities.maxImageExtent.height);
if (extents.width < 1 || extents.height < 1)
{
// Surface is likely hidden
printf("Extents too small.\n");
@ -193,15 +212,6 @@ bool Swapchain::create()
return false;
}
if (extents.width > surface_capabilities.maxImageExtent.width)
extents.width = surface_capabilities.maxImageExtent.width;
if (extents.height > surface_capabilities.maxImageExtent.height)
extents.height = surface_capabilities.maxImageExtent.height;
if (extents.width < surface_capabilities.minImageExtent.width)
extents.width = surface_capabilities.minImageExtent.width;
if (extents.height < surface_capabilities.minImageExtent.height)
extents.height = surface_capabilities.minImageExtent.height;
auto swapchain_create_info = vk::SwapchainCreateInfoKHR{}
.setMinImageCount(num_swapchain_images)
.setImageFormat(vk::Format::eB8G8R8A8Unorm)