Fixed issue at window minimization.

aster/swapchain.cpp

@@ -9,10 +9,12 @@
 #include "physical_device.h"
 #include "window.h"
 
+[[nodiscard]] vk::Extent2D GetExtent(const Window *window, vk::SurfaceCapabilitiesKHR *surfaceCapabilities);
+
 Swapchain::Swapchain(const Window *window, const Device *device, NameString &&name)
     : m_Device(device)
-    , m_Name(std::move(name))
+      , m_Name(std::move(name))
-    , m_Format(vk::Format::eUndefined)
+      , m_Format(vk::Format::eUndefined)
 {
     this->Create(window);
 }
@@ -24,12 +26,12 @@ Swapchain::~Swapchain()
 
 Swapchain::Swapchain(Swapchain &&other) noexcept
     : m_Device(other.m_Device)
-    , m_Swapchain(Take(other.m_Swapchain))
+      , m_Swapchain(Take(other.m_Swapchain))
-    , m_Name(std::move(other.m_Name))
+      , m_Name(std::move(other.m_Name))
-    , m_Extent(other.m_Extent)
+      , m_Extent(other.m_Extent)
-    , m_Format(other.m_Format)
+      , m_Format(other.m_Format)
-    , m_Images(std::move(other.m_Images))
+      , m_Images(std::move(other.m_Images))
-    , m_ImageViews(std::move(other.m_ImageViews))
+      , m_ImageViews(std::move(other.m_ImageViews))
 {
 }
 
@@ -52,6 +54,15 @@ void
 Swapchain::Create(const Window *window)
 {
     auto surfaceCapabilities = GetSurfaceCapabilities(m_Device->m_PhysicalDevice, window->m_Surface);
+    m_Extent = GetExtent(window, &surfaceCapabilities);
+
+    while (m_Extent.width == 0 || m_Extent.height == 0)
+    {
+        glfwWaitEvents();
+        surfaceCapabilities = GetSurfaceCapabilities(m_Device->m_PhysicalDevice, window->m_Surface);
+        m_Extent = GetExtent(window, &surfaceCapabilities);
+    }
+
     auto surfaceFormats = GetSurfaceFormats(m_Device->m_PhysicalDevice, window->m_Surface);
     auto presentModes = GetSurfacePresentModes(m_Device->m_PhysicalDevice, window->m_Surface);
 
@@ -83,20 +94,6 @@ Swapchain::Create(const Window *window)
         }
     }
 
-    if (surfaceCapabilities.currentExtent.width != MaxValue<u32>)
-    {
-        m_Extent = surfaceCapabilities.currentExtent;
-    }
-    else
-    {
-        auto [width, height] = window->GetSize();
-        auto [minWidth, minHeight] = surfaceCapabilities.minImageExtent;
-        auto [maxWidth, maxHeight] = surfaceCapabilities.maxImageExtent;
-
-        m_Extent.width = glm::clamp(width, minWidth, maxWidth);
-        m_Extent.height = glm::clamp(height, minHeight, maxHeight);
-    }
-
     u32 swapchainImageCount = 3;
     if (surfaceCapabilities.maxImageCount > 0)
     {
@@ -206,4 +203,22 @@ Swapchain::Cleanup()
         m_Swapchain = nullptr;
         DEBUG("Swapchain '{}' destroyed.", m_Name);
     }
+}
+
+vk::Extent2D
+GetExtent(const Window *window, vk::SurfaceCapabilitiesKHR *surfaceCapabilities)
+{
+    if (surfaceCapabilities->currentExtent.width != MaxValue<u32>)
+    {
+        return surfaceCapabilities->currentExtent;
+    }
+
+    auto [width, height] = window->GetSize();
+    auto [minWidth, minHeight] = surfaceCapabilities->minImageExtent;
+    auto [maxWidth, maxHeight] = surfaceCapabilities->maxImageExtent;
+
+    return {
+        .width = glm::clamp(width, minWidth, maxWidth),
+        .height = glm::clamp(height, minHeight, maxHeight),
+    };
 }

aster/window.cpp

@@ -25,7 +25,7 @@ Window::GetSize() const
 {
     int width;
     int height;
-    glfwGetWindowSize(m_Window, &width, &height);
+    glfwGetFramebufferSize(m_Window, &width, &height);
     return {Cast<u32>(width), Cast<u32>(height)};
 }
 

aster/window.h

@@ -29,6 +29,7 @@ struct Window final
 
     void SetWindowSize(const vk::Extent2D &extent) const noexcept;
     void SetWindowSize(u32 width, u32 height) const noexcept;
+    /// Actual size of the framebuffer being used for the window render.
     [[nodiscard]] vk::Extent2D GetSize() const;
 
     // Ctor/Dtor