adding Vulkan conformance tests as a step

src/vulkan/Queue.zig

@@ -78,6 +78,13 @@ pub inline fn bindSparse(self: *Self, info: []const vk.BindSparseInfo, fence: ?*
 }
 
 pub inline fn submit(self: *Self, infos: []const vk.SubmitInfo, p_fence: ?*Fence) VkError!void {
+    if (infos.len == 0) {
+        if (p_fence) |fence| {
+            try fence.signal();
+        }
+        return;
+    }
+
     const allocator = self.host_allocator.cloneWithScope(.command).allocator();
 
     var submit_infos = try SubmitInfo.initBlob(allocator, infos);

src/vulkan/VulkanAllocator.zig

@@ -90,7 +90,6 @@ fn free(context: *anyopaque, ptr: []u8, alignment: Alignment, ret_addr: usize) v
             pfn_free(self.callbacks.?.p_user_data, ptr.ptr);
         }
     }
-
     getFallbackAllocator().rawFree(ptr, alignment, ret_addr);
 }
 
@@ -99,6 +98,6 @@ inline fn getFallbackAllocator() std.mem.Allocator {
         @branchHint(.unlikely);
         return debug_allocator.allocator();
     } else {
-        return std.heap.c_allocator;
+        return std.heap.page_allocator;
     }
 }

src/vulkan/lib_vulkan.zig

@@ -205,6 +205,7 @@ const device_pfn_map = block: {
         functionMapEntryPoint("vkFreeMemory"),
         functionMapEntryPoint("vkGetBufferMemoryRequirements"),
         functionMapEntryPoint("vkGetDeviceMemoryCommitment"),
+        functionMapEntryPoint("vkGetDeviceProcAddr"),
         functionMapEntryPoint("vkGetDeviceQueue"),
         functionMapEntryPoint("vkGetEventStatus"),
         functionMapEntryPoint("vkGetFenceStatus"),
@@ -497,8 +498,6 @@ pub export fn strollQueueSubmit(p_queue: vk.Queue, count: u32, info: [*]const vk
     entryPointBeginLogTrace(.vkQueueSubmit);
     defer entryPointEndLogTrace();
 
-    if (count == 0) return .success;
-
     const queue = Dispatchable(Queue).fromHandleObject(p_queue) catch |err| return toVkResult(err);
     const fence = if (p_fence != .null_handle) NonDispatchable(Fence).fromHandleObject(p_fence) catch |err| return toVkResult(err) else null;
     queue.submit(info[0..count], fence) catch |err| return toVkResult(err);

src/vulkan/logger.zig

@@ -56,6 +56,7 @@ pub inline fn disableIndent() void {
 
 pub inline fn freeInnerDebugStack() void {
     debug_stack.deinit(std.heap.c_allocator);
+    debug_stack = .empty;
 }
 
 pub inline fn fixme(comptime format: []const u8, args: anytype) void {