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Vulkan: Partial revert of swap chain refactor.

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On Windows presenting mode mailbox would reduce lag. We might want to be
more selective on which mode to use when.
This commit is contained in:
Jeroen Bakker
2025-04-01 16:33:31 +02:00
parent 853640c063
commit 439a4e4687
1 changed files with 18 additions and 5 deletions
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23
intern/ghost/intern/GHOST_ContextVK.cc
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@@ -733,13 +733,26 @@ static void requireExtension(const vector<VkExtensionProperties> &extensions_ava
}
}
static GHOST_TSuccess selectPresentMode(VkPhysicalDevice /*device*/,
VkSurfaceKHR /*surface*/,
static GHOST_TSuccess selectPresentMode(VkPhysicalDevice device,
VkSurfaceKHR surface,
VkPresentModeKHR *r_presentMode)
{
/* FIFO present mode is always available and we prefer it as it will keep the main loop running
* along the monitor refresh rate. Mailbox and Fifo relaxed can generate a lot of frames that
* will never be displayed. */
uint32_t present_count;
vkGetPhysicalDeviceSurfacePresentModesKHR(device, surface, &present_count, nullptr);
vector<VkPresentModeKHR> presents(present_count);
vkGetPhysicalDeviceSurfacePresentModesKHR(device, surface, &present_count, presents.data());
/* MAILBOX is the lowest latency V-Sync enabled mode. We will use it if available as it fixes
* some lag on NVIDIA/Intel GPUs. */
for (auto present_mode : presents) {
if (present_mode == VK_PRESENT_MODE_MAILBOX_KHR) {
*r_presentMode = present_mode;
return GHOST_kSuccess;
}
}
/*FIFO present mode is always available and we (should) prefer it as it will keep the main loop
* running along the monitor refresh rate. Mailbox and Fifo relaxed can generate a lot of frames
* that will never be displayed. */
*r_presentMode = VK_PRESENT_MODE_FIFO_KHR;
return GHOST_kSuccess;
}