From 650e5afde271d22b3653832daf339e1bd09a10d6 Mon Sep 17 00:00:00 2001
From: grm <grm@eyesin.space>
Date: Sat, 14 Mar 2026 02:29:15 +0200
Subject: Migrate to imgui 1.92.6 and SDL3

---
 src/vksetup.h | 40 +++++++++++++++-------------------------
 1 file changed, 15 insertions(+), 25 deletions(-)

(limited to 'src/vksetup.h')

diff --git a/src/vksetup.h b/src/vksetup.h
index 505bdec..a659136 100644
--- a/src/vksetup.h
+++ b/src/vksetup.h
@@ -38,8 +38,8 @@
 
 #define SDL_MAIN_HANDLED
 #define VK_USE_PLATFORM_XCB_KHR
-#include <SDL2/SDL.h>
-#include <SDL2/SDL_vulkan.h>
+#include <SDL3/SDL.h>
+#include <SDL3/SDL_vulkan.h>
 
 #include <vulkan/vulkan.h>
 #include <vulkan/vk_enum_string_helper.h> // for string_VkResult
@@ -348,8 +348,7 @@ _has_stencil_component(VkFormat format)
 static VkInstance
 _vks_create_instance(bool              validation_layers_toggle,
                      const char* const validation_layers[],
-                     uint32_t          validation_layer_count,
-                     SDL_Window*       window)
+                     uint32_t          validation_layer_count)
 {
   if (validation_layers_toggle &&
       !_vks_check_validation_layer_support(validation_layers,
@@ -389,37 +388,29 @@ _vks_create_instance(bool              validation_layers_toggle,
   };
 
   uint32_t sdlExtensionCount = 0;
-
-  if (SDL_Vulkan_GetInstanceExtensions(window, &sdlExtensionCount, NULL) ==
-      SDL_FALSE) {
+  const char* const* sdlExtensionsBase = SDL_Vulkan_GetInstanceExtensions(&sdlExtensionCount);
+  if (sdlExtensionsBase == NULL) {
     vk_log(VK_ERROR,
            "SDL_Vulkan_GetInstanceExtensions failed: %s\n",
            SDL_GetError());
     abort();
   }
 
-  // make space for debug extenetion
+  // Copy pointers into a local array so we can append the debug extension
+  uint32_t totalExtensionCount = sdlExtensionCount;
   if (validation_layers_toggle) {
-    sdlExtensionCount++;
+    totalExtensionCount++;
   }
-
-  const char* sdlExtensions[sdlExtensionCount];
-
-  if (SDL_Vulkan_GetInstanceExtensions(
-        window, &sdlExtensionCount, sdlExtensions) == SDL_FALSE) {
-    vk_log(VK_ERROR,
-           "SDL_Vulkan_GetInstanceExtensions failed: %s\n",
-           SDL_GetError());
-    abort();
+  const char* sdlExtensions[totalExtensionCount];
+  for (uint32_t i = 0; i < sdlExtensionCount; i++) {
+    sdlExtensions[i] = sdlExtensionsBase[i];
   }
-
-  // add debug extenetion
   if (validation_layers_toggle) {
     sdlExtensions[sdlExtensionCount] = VK_EXT_DEBUG_UTILS_EXTENSION_NAME;
   }
 
   vk_log(VK_INFO, "The sdl extensions:\n");
-  for (uint32_t i = 0; i < sdlExtensionCount; i++) {
+  for (uint32_t i = 0; i < totalExtensionCount; i++) {
     vk_log(VK_INFO, "\t%s\n", sdlExtensions[i]);
   }
 
@@ -1021,12 +1012,11 @@ vks_create_vulkan_context(vks_context* vk)
   /* Create vulkan instance */
   vk->instance = _vks_create_instance(enable_validation_layers,
                                      validation_layers,
-                                     validation_layer_count,
-                                     vk->window);
+                                     validation_layer_count);
 
   /* Create render surface */
-  if (SDL_Vulkan_CreateSurface(vk->window, vk->instance, &vk->surface) ==
-      SDL_FALSE) {
+  if (SDL_Vulkan_CreateSurface(vk->window, vk->instance, NULL, &vk->surface) ==
+      false) {
     vk_log(VK_ERROR, "Failed to create surface\n");
   } else {
     vk_log(VK_INFO, "Vulkan surface created\n");
-- 
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