From 5a1a85885aef33fef121f84e165e9d38bc15214b Mon Sep 17 00:00:00 2001
From: Warwick New <warwick.l.e.new@gmail.com>
Date: Tue, 22 Apr 2025 00:10:36 +0100
Subject: [PATCH] Trying to fix no available video device :(

---
 flake.lock | 52 +++++++++++++++++++++++++++++++++++++++++++++++++++-
 flake.nix  |  9 ++++++---
 shell.nix  |  2 ++
 src/main.c | 19 +++++++++++++++++++
 4 files changed, 78 insertions(+), 4 deletions(-)

diff --git a/flake.lock b/flake.lock
index 019392c..676acc1 100644
--- a/flake.lock
+++ b/flake.lock
@@ -1,6 +1,55 @@
 {
   "nodes": {
+    "flake-utils": {
+      "locked": {
+        "lastModified": 1659877975,
+        "narHash": "sha256-zllb8aq3YO3h8B/U0/J1WBgAL8EX5yWf5pMj3G0NAmc=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "c0e246b9b83f637f4681389ecabcb2681b4f3af0",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixgl": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      },
+      "locked": {
+        "lastModified": 1713543440,
+        "narHash": "sha256-lnzZQYG0+EXl/6NkGpyIz+FEOc/DSEG57AP1VsdeNrM=",
+        "owner": "nix-community",
+        "repo": "nixGL",
+        "rev": "310f8e49a149e4c9ea52f1adf70cdc768ec53f8a",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "nixGL",
+        "type": "github"
+      }
+    },
     "nixpkgs": {
+      "locked": {
+        "lastModified": 1660551188,
+        "narHash": "sha256-a1LARMMYQ8DPx1BgoI/UN4bXe12hhZkCNqdxNi6uS0g=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "441dc5d512153039f19ef198e662e4f3dbb9fd65",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_2": {
       "locked": {
         "lastModified": 1744463964,
         "narHash": "sha256-LWqduOgLHCFxiTNYi3Uj5Lgz0SR+Xhw3kr/3Xd0GPTM=",
@@ -18,7 +67,8 @@
     },
     "root": {
       "inputs": {
-        "nixpkgs": "nixpkgs"
+        "nixgl": "nixgl",
+        "nixpkgs": "nixpkgs_2"
       }
     }
   },
diff --git a/flake.nix b/flake.nix
index eed5e8e..d11b7d6 100644
--- a/flake.nix
+++ b/flake.nix
@@ -2,13 +2,16 @@
   description = "Development Environment";
 
   inputs = {
+    nixgl.url = "github:nix-community/nixGL";
     nixpkgs.url= "github:nixos/nixpkgs/nixos-unstable";
   };
 
-  outputs = {self, nixpkgs, ...}:
+  outputs = {self, nixpkgs, nixgl,...}:
   let
-    system = "x86_64-linux";
-    pkgs = nixpkgs.legacyPackages.${system};
+    pkgs = import nixpkgs {
+      system = "x86_64-linux";
+      overlays = [ nixgl.overlay ];
+      };
   in {
     devShells.x86_64-linux.default = (import ./shell.nix { inherit pkgs; });
   };
diff --git a/shell.nix b/shell.nix
index 452856f..8fab0fe 100644
--- a/shell.nix
+++ b/shell.nix
@@ -8,6 +8,8 @@ pkgs.mkShell
     cglm
     sdl3
     sdl3-image
+    nixgl.nixVulkanIntel
+    vulkan-headers
   ];
   shellHook = ''
     export PS1="(webgpu) $PS1"
diff --git a/src/main.c b/src/main.c
index c270fa4..0b80650 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1,6 +1,11 @@
+#include <SDL3/SDL.h>
+#include <SDL3/SDL_video.h>
+#include <SDL3/SDL_vulkan.h>
 #include <assert.h>
 #include <stdbool.h>
 #include <stdio.h>
+#include <vulkan/vulkan.h>
+#include <vulkan/vulkan_core.h>
 #include <webgpu/webgpu.h>
 
 static void OnRequestAdapter(WGPURequestAdapterStatus status,
@@ -35,6 +40,20 @@ void requestAdapterSync(WGPUInstance instance,
 }
 
 int main() {
+  SDL_Window *window = NULL;
+  if (SDL_Init(SDL_INIT_VIDEO) != 0) {
+    fprintf(stderr, "SDL failed to initialise: %s\n", SDL_GetError());
+    return 1;
+  }
+  window = SDL_CreateWindow("SDL3 Example", 800, 600, SDL_WINDOW_VULKAN);
+  if (window == NULL) {
+    fprintf(stderr, "SDL window failed to initialise: %s\n", SDL_GetError());
+    return 1;
+  }
+
+  const char *driver = SDL_GetCurrentVideoDriver();
+  printf("Driver: %s\n", driver);
+
   // We create a descriptor
   WGPUInstanceDescriptor desc = {};
   desc.nextInChain = NULL;