From f0892fd9025853c2faad6da1efe096bebd4a6d48 Mon Sep 17 00:00:00 2001
From: qwertzuiopy <michael@cmbm.de>
Date: Fri, 28 Feb 2025 17:54:00 +0100
Subject: [PATCH] Fix freeze on fullscreen

---
 src/vulkan.c | 29 +++++++----------------------
 src/vulkan.h |  1 +
 2 files changed, 8 insertions(+), 22 deletions(-)

diff --git a/src/vulkan.c b/src/vulkan.c
index 5bd077e..dcda392 100644
--- a/src/vulkan.c
+++ b/src/vulkan.c
@@ -1,7 +1,6 @@
 #include "vulkan.h"
 #include "kitty.h"
 #include "log.h"
-#include "matrix.h"
 #include "types.h"
 
 #include "image.h"
@@ -12,24 +11,6 @@
 #include <vulkan/vulkan.h>
 #include <vulkan/vulkan_core.h>
 
-#define VERTEX_ATTRIBUTE_COUNT 2
-
-#define QUAD_VERTEX_COUNT 3
-struct Vertex quad_vertices[QUAD_VERTEX_COUNT] = {
-    (struct Vertex){(struct Vec2){.x = 0.0f, .y = -0.5f},
-                    (struct Vec3){1.0f, 0.0f, 1.0f}},
-    (struct Vertex){(struct Vec2){.x = 0.5f, .y = 0.5f},
-                    (struct Vec3){1.0f, 0.0f, 0.2f}},
-    (struct Vertex){(struct Vec2){.x = -0.5f, .y = 0.5f},
-                    (struct Vec3){0.2f, 0.0f, 1.0f}},
-};
-
-struct UBO {
-  struct mat3x3 model;
-  struct mat3x3 view;
-  struct mat3x3 proj;
-};
-
 VkVertexInputBindingDescription get_vertex_binding_description() {
   VkVertexInputBindingDescription description = {0};
   description.binding = 0;
@@ -796,9 +777,12 @@ void uninit_vk(struct Vk *state) {
 }
 
 void vk_draw(struct Vk *state) {
-  CHECK_VK_RESULT(vkWaitForFences(
-      state->device, 1, &state->flights[state->current_frame].in_flight_fence,
-      VK_TRUE, UINT64_MAX));
+  if (state->should_wait_for_fences) {
+    CHECK_VK_RESULT(vkWaitForFences(
+        state->device, 1, &state->flights[state->current_frame].in_flight_fence,
+        VK_TRUE, UINT64_MAX));
+    state->should_wait_for_fences = true;
+  }
   CHECK_VK_RESULT(vkResetFences(
       state->device, 1, &state->flights[state->current_frame].in_flight_fence));
 
@@ -815,6 +799,7 @@ void vk_draw(struct Vk *state) {
     meow("recreating swapchain");
     CHECK_VK_RESULT(vkDeviceWaitIdle(state->device));
     recreate_swapchain(state);
+    state->should_wait_for_fences = false;
     return;
   } else if (result < 0) {
     CHECK_VK_RESULT(result);
diff --git a/src/vulkan.h b/src/vulkan.h
index 8518f05..93ca40d 100644
--- a/src/vulkan.h
+++ b/src/vulkan.h
@@ -95,6 +95,7 @@ struct Vk {
   uint32_t width;
   uint32_t heigh;
   VkRenderPass render_pass;
+  bool should_wait_for_fences;
 
   struct GpuMem *mem;
   struct da_Kitty kitties;