Examples: Vulkan: pick integrated GPU if nothing else is available. (#6359)

docs/CHANGELOG.txt

@@ -58,7 +58,7 @@ Other changes:
   by context (Desktop 3.0, 3.1, or 3.2+ with compat bit). (#6333) [@GereonV]
 - Examples: Added native Win32+OpenGL3 example. We don't recommend using this setup but we
   provide it for completeness. (#3218, #5170, #6086, #2772, #2600, #2359, #2022, #1553) [@learn-more]
-
+- Examples: Vulkan: Use integrated GPU if nothing else is available. (#6359) [@kimidaisuki22]
 
 
 -----------------------------------------------------------------------

examples/example_glfw_vulkan/main.cpp

@@ -99,6 +99,10 @@ static VkPhysicalDevice SetupVulkan_SelectPhysicalDevice()
         if (properties.deviceType == VK_PHYSICAL_DEVICE_TYPE_DISCRETE_GPU)
             return device;
     }
+
+    // Use first GPU (Integrated) is a Discrete one is not available.
+    if (gpu_count > 0)
+        return gpus[0];
     return VK_NULL_HANDLE;
 }
 

examples/example_sdl2_vulkan/main.cpp

@@ -87,6 +87,10 @@ static VkPhysicalDevice SetupVulkan_SelectPhysicalDevice()
         if (properties.deviceType == VK_PHYSICAL_DEVICE_TYPE_DISCRETE_GPU)
             return device;
     }
+
+    // Use first GPU (Integrated) is a Discrete one is not available.
+    if (gpu_count > 0)
+        return gpus[0];
     return VK_NULL_HANDLE;
 }