From d995d66f8969006ea3b43baf2be62f248291393a Mon Sep 17 00:00:00 2001
From: Asuro <asuro@posteo.de>
Date: Wed, 3 Nov 2021 05:01:42 +0100
Subject: [PATCH] vsync

---
 src/config.rs     | 24 ++++++++++++++++++++++--
 src/vulkan/mod.rs |  2 +-
 2 files changed, 23 insertions(+), 3 deletions(-)

diff --git a/src/config.rs b/src/config.rs
index 92cb1b3..7235797 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -2,7 +2,7 @@ use std::{convert::TryInto, fs};
 
 use serde_derive::{Deserialize, Serialize};
 use toml;
-use vulkano::image::SampleCount;
+use vulkano::{image::SampleCount, swapchain::PresentMode};
 
 #[derive(Debug, Serialize, Deserialize, Clone, Copy)]
 pub struct LogConfigInput {
@@ -27,7 +27,8 @@ impl LogConfig {
 
 #[derive(Debug, Serialize, Deserialize, Clone, Copy)]
 pub struct RenderConfig {
-    pub msaa_samples: u32
+    pub msaa_samples: u32,
+    pub vsync: PresentModeConfig,
 }
 
 impl RenderConfig {
@@ -38,4 +39,23 @@ impl RenderConfig {
     pub fn get_msaa(&self) -> Option<SampleCount> {
         if self.msaa_samples > 0 { self.msaa_samples.try_into().ok() } else { None }
     }
+}
+
+#[derive(Debug, Serialize, Deserialize, Clone, Copy)]
+pub enum PresentModeConfig {
+    Immediate,
+    Mailbox,
+    Fifo,
+    FifoRelaxed,
+}
+
+impl Into<PresentMode> for PresentModeConfig {
+    fn into(self) -> PresentMode {
+        match self {
+            PresentModeConfig::Immediate => PresentMode::Immediate,
+            PresentModeConfig::Mailbox => PresentMode::Mailbox,
+            PresentModeConfig::Fifo => PresentMode::Fifo,
+            PresentModeConfig::FifoRelaxed => PresentMode::Relaxed,
+        }
+    }
 }
\ No newline at end of file
diff --git a/src/vulkan/mod.rs b/src/vulkan/mod.rs
index bab14aa..69b2a8d 100644
--- a/src/vulkan/mod.rs
+++ b/src/vulkan/mod.rs
@@ -245,7 +245,7 @@ impl VulkanRenderer {
                 .sharing_mode(&queue)
                 .transform(SurfaceTransform::Identity)
                 .composite_alpha(alpha)
-                .present_mode(PresentMode::Fifo)
+                .present_mode(render_config.vsync.into())
                 .fullscreen_exclusive(FullscreenExclusive::Default)
                 .clipped(true)
                 .color_space(color_space)