commit 1b61b6b2083493c6e623df1ff74922edceda91ae
author omar <omarcornut@gmail.com> Tue Aug 28 18:22:36 2018 +0200
committer omar <omarcornut@gmail.com> Tue Aug 28 18:22:36 2018 +0200
tree 84b2e69147f758399e7629edd7b179df19c57382
parent db790dab4cc3f9507878ec0a9d0fc38d9cc3b871

Examples: Vulkan: Minor tweaks.

examples/imgui_impl_vulkan.cpp

diff --git a/examples/imgui_impl_vulkan.cpp b/examples/imgui_impl_vulkan.cpp
index 15c7654..3663963 100644
--- a/examples/imgui_impl_vulkan.cpp
+++ b/examples/imgui_impl_vulkan.cpp
@@ -168,7 +168,7 @@
 static void CreateOrResizeBuffer(VkBuffer& buffer, VkDeviceMemory& buffer_memory, VkDeviceSize& p_buffer_size, size_t new_size, VkBufferUsageFlagBits usage)
 {
     VkResult err;
-    if (buffer != NULL)
+    if (buffer != VK_NULL_HANDLE)
         vkDestroyBuffer(g_Device, buffer, g_Allocator);
     if (buffer_memory)
         vkFreeMemory(g_Device, buffer_memory, g_Allocator);
@@ -695,12 +695,12 @@
 
 bool    ImGui_ImplVulkan_Init(ImGui_ImplVulkan_InitInfo* info, VkRenderPass render_pass)
 {
-    IM_ASSERT(info->Instance != NULL);
-    IM_ASSERT(info->PhysicalDevice != NULL);
-    IM_ASSERT(info->Device != NULL);
-    IM_ASSERT(info->Queue != NULL);
-    IM_ASSERT(info->DescriptorPool != NULL);
-    IM_ASSERT(render_pass != NULL);
+    IM_ASSERT(info->Instance != VK_NULL_HANDLE);
+    IM_ASSERT(info->PhysicalDevice != VK_NULL_HANDLE);
+    IM_ASSERT(info->Device != VK_NULL_HANDLE);
+    IM_ASSERT(info->Queue != VK_NULL_HANDLE);
+    IM_ASSERT(info->DescriptorPool != VK_NULL_HANDLE);
+    IM_ASSERT(render_pass != VK_NULL_HANDLE);
 
     g_Instance = info->Instance;
     g_PhysicalDevice = info->PhysicalDevice;
@@ -839,7 +839,7 @@
 
 void ImGui_ImplVulkanH_CreateWindowDataCommandBuffers(VkPhysicalDevice physical_device, VkDevice device, uint32_t queue_family, ImGui_ImplVulkanH_WindowData* wd, const VkAllocationCallbacks* allocator)
 {
-    IM_ASSERT(physical_device != NULL && device != NULL);
+    IM_ASSERT(physical_device != VK_NULL_HANDLE && device != VK_NULL_HANDLE);
     (void)allocator;
 
     // Create Command Buffers

examples/imgui_impl_vulkan.h

diff --git a/examples/imgui_impl_vulkan.h b/examples/imgui_impl_vulkan.h
index 4599347..7690ff2 100644
--- a/examples/imgui_impl_vulkan.h
+++ b/examples/imgui_impl_vulkan.h
@@ -15,6 +15,7 @@
 
 #define IMGUI_VK_QUEUED_FRAMES      2
 
+// Please zero-clear before use.
 struct ImGui_ImplVulkan_InitInfo
 {
     VkInstance                      Instance;