From d4c367287ea50e854205e27cf814abbb23615b8a Mon Sep 17 00:00:00 2001
From: =?utf8?q?Jean-Philippe=20Bruy=C3=A8re?= <jp_bruyere@hotmail.com>
Date: Mon, 24 Jan 2022 21:47:39 +0100
Subject: [PATCH] add layer and instance ext check methods

---
 include/vkh.h   | 12 ++++++++++++
 src/vkhelpers.c | 36 ++++++++++++++++++++++++++++++++++++
 2 files changed, 48 insertions(+)

diff --git a/include/vkh.h b/include/vkh.h
index 0a6eada..94a912a 100644
--- a/include/vkh.h
+++ b/include/vkh.h
@@ -312,6 +312,18 @@ void        vkh_queue_destroy   (VkhQueue queue);
 //VkhQueue    vkh_queue_find      (VkhDevice dev, VkQueueFlags flags);
 /////////////////////
 
+vkh_public
+bool vkh_instance_extension_supported (const char* instanceName);
+vkh_public
+void vkh_instance_extensions_check_init ();
+vkh_public
+void vkh_instance_extensions_check_release ();
+vkh_public
+bool vkh_layer_is_present (const char* layerName);
+vkh_public
+void vkh_layers_check_init ();
+vkh_public
+void vkh_layers_check_release ();
 #ifdef __cplusplus
 }
 #endif
diff --git a/src/vkhelpers.c b/src/vkhelpers.c
index b457d69..03d32ff 100644
--- a/src/vkhelpers.c
+++ b/src/vkhelpers.c
@@ -287,3 +287,39 @@ void dumpLayerExts () {
 	}
 	free(vk_props);
 }
+
+static VkExtensionProperties* instExtProps;
+static uint32_t instExtCount;
+bool vkh_instance_extension_supported (const char* instanceName) {
+    for (uint32_t i=0; i<instExtCount; i++) {
+        if (!strcmp(instExtProps[i].extensionName, instanceName))
+            return true;
+    }
+    return false;
+}
+void vkh_instance_extensions_check_init () {
+    VK_CHECK_RESULT(vkEnumerateInstanceExtensionProperties(NULL, &instExtCount, NULL));
+    instExtProps =(VkExtensionProperties*)malloc(instExtCount * sizeof(VkExtensionProperties));
+    VK_CHECK_RESULT(vkEnumerateInstanceExtensionProperties(NULL, &instExtCount, instExtProps));
+}
+void vkh_instance_extensions_check_release () {
+    free (instExtProps);
+}
+
+static VkLayerProperties* instLayerProps;
+static uint32_t instance_layer_count;
+bool vkh_layer_is_present (const char* layerName) {
+    for (uint32_t i=0; i<instance_layer_count; i++) {
+        if (!strcmp(instLayerProps[i].layerName, layerName))
+            return true;
+    }
+    return false;
+}
+void vkh_layers_check_init () {
+    VK_CHECK_RESULT(vkEnumerateInstanceLayerProperties(&instance_layer_count, NULL));
+    instLayerProps =(VkLayerProperties*)malloc(instance_layer_count * sizeof(VkLayerProperties));
+    VK_CHECK_RESULT(vkEnumerateInstanceLayerProperties(&instance_layer_count, instLayerProps));
+}
+void vkh_layers_check_release () {
+    free (instLayerProps);
+}
-- 
2.47.3