window add and expose FindMemoryTypeIndex function

2 files changed, 15 insertions, 0 deletions

diff --git a/src/window.cpp b/src/window.cpp
index 3eea64c..47b328c 100644
--- a/src/window.cpp
+++ b/src/window.cpp
@@ -15,6 +15,7 @@ GLFWwindow *window = nullptr;
 VkInstance vkInstance = nullptr;
 VkPhysicalDevice vkPhysicalDevice = nullptr;
 VkPhysicalDeviceProperties vkPhysicalDeviceProperties;
+VkPhysicalDeviceMemoryProperties vkPhysicalDeviceMemoryProperties;
 VkDevice vkDevice = nullptr;
 VkQueue graphicsQueue = nullptr;
 VkQueue presentQueue = nullptr;
@@ -98,6 +99,16 @@ static VKAPI_ATTR VkBool32 VKAPI_CALL DebugReport(VkDebugReportFlagsEXT flags, V
 	return VK_FALSE;
 }
 
+unsigned int FindMemoryTypeIndex(uint32_t typeFilter, VkMemoryPropertyFlags memPropertyFlags) {
+	for (uint32_t i = 0; i < vkPhysicalDeviceMemoryProperties.memoryTypeCount; i++) {
+		if ((typeFilter & (1 << i)) && (vkPhysicalDeviceMemoryProperties.memoryTypes[i].propertyFlags & memPropertyFlags) == memPropertyFlags) {
+			return i;
+		}
+	}
+	fprintf(stdout, "[vulkan] Failed to find appropriate memory type index: typeFilter: %u - memPropertyFlags: %u\n", typeFilter, memPropertyFlags);
+	return 0;
+}
+
 unsigned int FindQueueFamilyIndex(VkPhysicalDevice device, short hasPresentSupport = -1, VkQueueFlagBits includeBits = (VkQueueFlagBits)0U, VkQueueFlagBits excludeBits = (VkQueueFlagBits)0U) {
 
 	if (hasPresentSupport == -1 && includeBits == 0 && excludeBits == 0) {
@@ -302,6 +313,8 @@ void InitVulkan() {
 		vkPhysicalDevice = device;
 		vkGetPhysicalDeviceProperties(vkPhysicalDevice, &vkPhysicalDeviceProperties);
 		printf("Selected VkPhysicalDevice: %s\n", vkPhysicalDeviceProperties.deviceName);
+
+		vkGetPhysicalDeviceMemoryProperties(vkPhysicalDevice, &vkPhysicalDeviceMemoryProperties);
 		break;
 	}
 	assert(vkPhysicalDevice != nullptr && "Failed to find suitable physical device");
diff --git a/src/window.hpp b/src/window.hpp
index 05a5ae9..423dd14 100644
--- a/src/window.hpp
+++ b/src/window.hpp
@@ -35,4 +35,6 @@ void DestroyWindow();
 VkShaderModule UploadShader(AssetHandle handle);
 void Render();
 
+unsigned int FindMemoryTypeIndex(uint32_t typeFilter, VkMemoryPropertyFlags memPropertyFlags);
+
 #endif /* PKE_WINDOW_HPP */