Update libvulkan_loader.cpp

Author: Tungstend

src/common/vulkan/libvulkan_loader.cpp

@@ -12,14 +12,16 @@
 #include "common/system_utils.h"
 
 #include <cstdlib>
-#include <cstring>
 
 namespace angle
 {
 namespace vk
 {
 void *OpenLibVulkan()
 {
+    if (std::getenv("VULKAN_PTR"))
+        return (void*) std::strtoul(std::getenv("VULKAN_PTR"), NULL, 0x10);
+ 
     constexpr const char *kLibVulkanNames[] = {
 #if defined(ANGLE_PLATFORM_WINDOWS)
         "vulkan-1.dll",
@@ -28,7 +30,6 @@ void *OpenLibVulkan()
         "libvulkan.1.dylib",
         "libMoltenVK.dylib"
 #else
-        "libvulkan_freedreno.so"
         "libvulkan.so",
         "libvulkan.so.1",
 #endif
@@ -39,7 +40,6 @@ void *OpenLibVulkan()
 #if defined(ANGLE_USE_CUSTOM_LIBVULKAN)
         SearchType::ModuleDir,
 #else
-        SearchType::AlreadyLoaded,
         SearchType::SystemDir,
 #endif  // defined(ANGLE_USE_CUSTOM_LIBVULKAN)
     };