Use NV glsl shader compiler for Vulkan

src/gpu/vk/GrVkBuffer.cpp

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrVkBuffer.h"
 #include "GrVkGpu.h"
 #include "GrVkMemory.h"
@@ skipping 39 matching lines @@
     bufInfo.queueFamilyIndexCount = 0;
     bufInfo.pQueueFamilyIndices = nullptr;
 
     VkResult err;
     err = VK_CALL(gpu, CreateBuffer(gpu->device(), &bufInfo, nullptr, &buffer));
     if (err) {
         return nullptr;
     }
 
     VkMemoryPropertyFlags requiredMemProps = VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT |
-                                             VK_MEMORY_PROPERTY_HOST_COHERENT_BIT;
+                                             VK_MEMORY_PROPERTY_HOST_COHERENT_BIT |
+                                             VK_MEMORY_PROPERTY_HOST_CACHED_BIT;
 
     if (!GrVkMemory::AllocAndBindBufferMemory(gpu,
                                               buffer,
                                               requiredMemProps,
                                               &alloc)) {
-        VK_CALL(gpu, DestroyBuffer(gpu->device(), buffer, nullptr));
-        return nullptr;
+        // Try again without requiring host cached memory
+        requiredMemProps = VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT |
+                           VK_MEMORY_PROPERTY_HOST_COHERENT_BIT;
+        if (!GrVkMemory::AllocAndBindBufferMemory(gpu,
+                                                  buffer,
+                                                  requiredMemProps,
+                                                  &alloc)) {
+            VK_CALL(gpu, DestroyBuffer(gpu->device(), buffer, nullptr));
+            return nullptr;
+        }
     }
 
     const GrVkBuffer::Resource* resource = new GrVkBuffer::Resource(buffer, alloc);
     if (!resource) {
         VK_CALL(gpu, DestroyBuffer(gpu->device(), buffer, nullptr));
         VK_CALL(gpu, FreeMemory(gpu->device(), alloc, nullptr));
         return nullptr;
     }
 
     return resource;
@@ skipping 102 matching lines @@
 
     return true;
 }
 
 void GrVkBuffer::validate() const {
     SkASSERT(!fResource || kVertex_Type == fDesc.fType || kIndex_Type == fDesc.fType
              || kCopyRead_Type == fDesc.fType || kCopyWrite_Type == fDesc.fType
              || kUniform_Type == fDesc.fType);
 }