diff --git a/examples/vulkan_example/main.cpp b/examples/vulkan_example/main.cpp index 79ceb8b2..a197515f 100644 --- a/examples/vulkan_example/main.cpp +++ b/examples/vulkan_example/main.cpp @@ -34,7 +34,9 @@ static VkPresentModeKHR g_PresentMode; static VkPipelineCache g_PipelineCache = VK_NULL_HANDLE; static VkDescriptorPool g_DescriptorPool = VK_NULL_HANDLE; -static int fb_width, fb_height; +static int fb_width = 0, fb_height = 0; +static bool g_ResizeWanted = false; +static int g_ResizeWidth = 0, g_ResizeHeight = 0; static uint32_t g_BackbufferIndices[IMGUI_VK_QUEUED_FRAMES]; // keep track of recently rendered swapchain frame indices static uint32_t g_BackBufferCount = 0; static VkImage g_BackBuffer[IMGUI_MAX_POSSIBLE_BACK_BUFFERS] = {}; @@ -58,7 +60,7 @@ static void check_vk_result(VkResult err) abort(); } -static void resize_vulkan(GLFWwindow* /*window*/, int w, int h) +static void resize_vulkan(int w, int h) { VkResult err; VkSwapchainKHR old_swapchain = g_Swapchain; @@ -355,7 +357,7 @@ static void setup_vulkan(GLFWwindow* window) // Get Present Mode { - // Requst a certain mode and confirm that it is available. If not use VK_PRESENT_MODE_FIFO_KHR which is mandatory + // Request a certain mode and confirm that it is available. If not use VK_PRESENT_MODE_FIFO_KHR which is mandatory #ifdef IMGUI_UNLIMITED_FRAME_RATE g_PresentMode = VK_PRESENT_MODE_IMMEDIATE_KHR; #else @@ -406,8 +408,7 @@ static void setup_vulkan(GLFWwindow* window) { int w, h; glfwGetFramebufferSize(window, &w, &h); - resize_vulkan(window, w, h); - glfwSetFramebufferSizeCallback(window, resize_vulkan); + resize_vulkan(w, h); } // Create Command Buffers @@ -588,6 +589,13 @@ static void glfw_error_callback(int error, const char* description) fprintf(stderr, "Error %d: %s\n", error, description); } +static void glfw_resize_callback(GLFWwindow*, int w, int h) +{ + g_ResizeWanted = true; + g_ResizeWidth = w; + g_ResizeHeight = h; +} + int main(int, char**) { // Setup window @@ -605,6 +613,7 @@ int main(int, char**) return 1; } setup_vulkan(window); + glfwSetFramebufferSizeCallback(window, glfw_resize_callback); // Setup ImGui binding ImGui::CreateContext(); @@ -680,6 +689,11 @@ int main(int, char**) // - When io.WantCaptureKeyboard is true, do not dispatch keyboard input data to your main application. // Generally you may always pass all inputs to dear imgui, and hide them from your application based on those two flags. glfwPollEvents(); + + if (g_ResizeWanted) + resize_vulkan(g_ResizeWidth, g_ResizeHeight); + g_ResizeWanted = false; + ImGui_ImplGlfwVulkan_NewFrame(); // 1. Show a simple window.