From 403f694bf90455f13b115ea7cf58495f58bde6cc Mon Sep 17 00:00:00 2001
From: =?utf8?q?Jean-Philippe=20Bruy=C3=A8re?= <jp_bruyere@hotmail.com>
Date: Tue, 15 Jun 2021 08:33:51 +0200
Subject: [PATCH] phyinfo extension check

---
 include/vkh.h     |  2 ++
 src/vkh_phyinfo.c | 19 ++++++++++++++++++-
 src/vkh_phyinfo.h |  3 +++
 3 files changed, 23 insertions(+), 1 deletion(-)

diff --git a/include/vkh.h b/include/vkh.h
index 2d9af36..d6bc5a7 100644
--- a/include/vkh.h
+++ b/include/vkh.h
@@ -38,6 +38,7 @@ typedef enum VmaMemoryUsage VmaMemoryUsage;
 #include <assert.h>
 #include <stdbool.h>
 #include <stdint.h>
+#include <string.h>
 
 #define _USE_MATH_DEFINES   //to have M_PI* defined with MSVC
 #include <math.h>
@@ -97,6 +98,7 @@ bool phy_info_create_graphic_queues			(VkhPhyInfo phy, uint32_t queueCount, cons
 bool vkh_phyinfo_create_transfer_queues		(VkhPhyInfo phy, uint32_t queueCount, const float* queue_priorities, VkDeviceQueueCreateInfo* const qInfo);
 bool vkh_phyinfo_create_compute_queues		(VkhPhyInfo phy, uint32_t queueCount, const float* queue_priorities, VkDeviceQueueCreateInfo* const qInfo);
 
+bool vkh_phyinfo_try_get_extension_properties (VkhPhyInfo phy, const char* name, const VkExtensionProperties* properties);
 /*************
  * VkhDevice *
  *************/
diff --git a/src/vkh_phyinfo.c b/src/vkh_phyinfo.c
index 9140e3b..d3dceb5 100644
--- a/src/vkh_phyinfo.c
+++ b/src/vkh_phyinfo.c
@@ -89,7 +89,8 @@ VkhPhyInfo vkh_phyinfo_create (VkPhysicalDevice phy, VkSurfaceKHR surface) {
 }
 
 void vkh_phyinfo_destroy (VkhPhyInfo phy) {
-
+	if (phy->pExtensionProperties != NULL)
+		free(phy->pExtensionProperties);
 	free(phy->queues);
 	free(phy);
 }
@@ -184,3 +185,19 @@ bool vkh_phy_info_create_graphic_queues (VkhPhyInfo phy, uint32_t queueCount, co
 	}
 	return false;
 }
+bool vkh_phyinfo_try_get_extension_properties (VkhPhyInfo phy, const char* name, const VkExtensionProperties* properties) {
+	if (phy->pExtensionProperties == NULL) {
+		VK_CHECK_RESULT(vkEnumerateDeviceExtensionProperties(phy->phy, NULL, &phy->extensionCount, NULL));
+		phy->pExtensionProperties = (VkExtensionProperties*)malloc(phy->extensionCount * sizeof(VkExtensionProperties));
+		VK_CHECK_RESULT(vkEnumerateDeviceExtensionProperties(phy->phy, NULL, &phy->extensionCount, phy->pExtensionProperties));
+	}
+	for (uint32_t i=0; i<phy->extensionCount; i++) {
+		if (strcmp(name, phy->pExtensionProperties[i].extensionName)==0) {
+			if (properties != NULL)
+				properties = &phy->pExtensionProperties[i];
+			return true;
+		}
+	}
+	properties = NULL;
+	return false;
+}
diff --git a/src/vkh_phyinfo.h b/src/vkh_phyinfo.h
index c3e1076..3a7261f 100644
--- a/src/vkh_phyinfo.h
+++ b/src/vkh_phyinfo.h
@@ -41,6 +41,9 @@ typedef struct _vkh_phy_t{
 
 	uint32_t                            qCreateInfosCount;
 	VkDeviceQueueCreateInfo*            qCreateInfos;
+
+	VkExtensionProperties*				pExtensionProperties;
+	uint32_t							extensionCount;
 }vkh_phy_t;
 #ifdef __cplusplus
 }
-- 
2.47.3