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fix: is_wayland_platform flag to prioritize low-latency

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2025-09-29 04:11:44 +00:00
parent d627962408
commit ce2909299f
1 changed files with 44 additions and 22 deletions
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66
src/video_core/renderer_vulkan/vk_swapchain.cpp
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@@ -1,4 +1,5 @@
// SPDX-FileCopyrightText: Copyright 2019 yuzu Emulator Project
// SPDX-FileCopyrightText: Copyright 2025 citron Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include <algorithm>
@@ -37,6 +38,27 @@ VkSurfaceFormatKHR ChooseSwapSurfaceFormat(vk::Span<VkSurfaceFormatKHR> formats)
static VkPresentModeKHR ChooseSwapPresentMode(bool has_imm, bool has_mailbox,
bool has_fifo_relaxed) {
// Wayland-specific optimizations for low-latency presentation.
if (Settings::values.is_wayland_platform.GetValue()) {
LOG_INFO(Render_Vulkan, "Wayland platform detected. Prioritizing low-latency presentation modes.");
// On Wayland, Mailbox is strongly preferred for smooth, low-latency rendering.
if (has_mailbox) {
LOG_INFO(Render_Vulkan, "Using Mailbox presentation mode for Wayland.");
return VK_PRESENT_MODE_MAILBOX_KHR;
}
// Allow Immediate for lowest latency if the user explicitly chooses it.
if (has_imm && Settings::values.vsync_mode.GetValue() == Settings::VSyncMode::Immediate) {
LOG_INFO(Render_Vulkan, "Using Immediate presentation mode for Wayland (tearing may occur).");
return VK_PRESENT_MODE_IMMEDIATE_KHR;
}
// Fallback to standard FIFO (V-Sync) if Mailbox is not available.
LOG_INFO(Render_Vulkan, "Mailbox not available. Falling back to FIFO presentation mode for Wayland.");
return VK_PRESENT_MODE_FIFO_KHR;
}
// Mailbox doesn't lock the application like FIFO (vsync)
// FIFO present mode locks the framerate to the monitor's refresh rate
Settings::VSyncMode setting = [has_imm, has_mailbox]() {
@@ -46,35 +68,35 @@ static VkPresentModeKHR ChooseSwapPresentMode(bool has_imm, bool has_mailbox,
return mode;
}
switch (mode) {
case Settings::VSyncMode::Fifo:
case Settings::VSyncMode::FifoRelaxed:
if (has_mailbox) {
return Settings::VSyncMode::Mailbox;
} else if (has_imm) {
return Settings::VSyncMode::Immediate;
}
[[fallthrough]];
default:
return mode;
case Settings::VSyncMode::Fifo:
case Settings::VSyncMode::FifoRelaxed:
if (has_mailbox) {
return Settings::VSyncMode::Mailbox;
} else if (has_imm) {
return Settings::VSyncMode::Immediate;
}
[[fallthrough]];
default:
return mode;
}
}();
if ((setting == Settings::VSyncMode::Mailbox && !has_mailbox) ||
(setting == Settings::VSyncMode::Immediate && !has_imm) ||
(setting == Settings::VSyncMode::FifoRelaxed && !has_fifo_relaxed)) {
setting = Settings::VSyncMode::Fifo;
}
}
switch (setting) {
case Settings::VSyncMode::Immediate:
return VK_PRESENT_MODE_IMMEDIATE_KHR;
case Settings::VSyncMode::Mailbox:
return VK_PRESENT_MODE_MAILBOX_KHR;
case Settings::VSyncMode::Fifo:
return VK_PRESENT_MODE_FIFO_KHR;
case Settings::VSyncMode::FifoRelaxed:
return VK_PRESENT_MODE_FIFO_RELAXED_KHR;
default:
return VK_PRESENT_MODE_FIFO_KHR;
switch (setting) {
case Settings::VSyncMode::Immediate:
return VK_PRESENT_MODE_IMMEDIATE_KHR;
case Settings::VSyncMode::Mailbox:
return VK_PRESENT_MODE_MAILBOX_KHR;
case Settings::VSyncMode::Fifo:
return VK_PRESENT_MODE_FIFO_KHR;
case Settings::VSyncMode::FifoRelaxed:
return VK_PRESENT_MODE_FIFO_RELAXED_KHR;
default:
return VK_PRESENT_MODE_FIFO_KHR;
}
}