Revise layer, extension and feature setup for Vulkan

src/gpu/vk/GrVkGpu.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 "GrVkGpu.h"
 
 #include "GrContextOptions.h"
@@ skipping 71 matching lines @@
 GrVkGpu::GrVkGpu(GrContext* context, const GrContextOptions& options, 
                  const GrVkBackendContext* backendCtx)
     : INHERITED(context)
     , fVkInstance(backendCtx->fInstance)
     , fDevice(backendCtx->fDevice)
     , fQueue(backendCtx->fQueue)
     , fResourceProvider(this) {
     fBackendContext.reset(backendCtx);
 
 #ifdef ENABLE_VK_LAYERS
-    if (this->vkInterface()->hasInstanceExtension(VK_EXT_DEBUG_REPORT_EXTENSION_NAME)) {
-        /* Setup callback creation information */
+    if (backendCtx->fExtensions & kEXT_debug_report_GrVkExtensionFlag) {
+        // Setup callback creation information
         VkDebugReportCallbackCreateInfoEXT callbackCreateInfo;
         callbackCreateInfo.sType = VK_STRUCTURE_TYPE_DEBUG_REPORT_CREATE_INFO_EXT;
         callbackCreateInfo.pNext = nullptr;
         callbackCreateInfo.flags = VK_DEBUG_REPORT_ERROR_BIT_EXT |
                                    VK_DEBUG_REPORT_WARNING_BIT_EXT |
                                    //VK_DEBUG_REPORT_INFORMATION_BIT_EXT |
                                    //VK_DEBUG_REPORT_DEBUG_BIT_EXT |
                                    VK_DEBUG_REPORT_PERFORMANCE_WARNING_BIT_EXT;
         callbackCreateInfo.pfnCallback = &DebugReportCallback;
         callbackCreateInfo.pUserData = nullptr;
 
-        /* Register the callback */
+        // Register the callback
         GR_VK_CALL_ERRCHECK(this->vkInterface(), CreateDebugReportCallbackEXT(fVkInstance,
                             &callbackCreateInfo, nullptr, &fCallback));
     }
 #endif
 
     fCompiler = shaderc_compiler_initialize();
 
-    fVkCaps.reset(new GrVkCaps(options, this->vkInterface(), backendCtx->fPhysicalDevice));
+    fVkCaps.reset(new GrVkCaps(options, this->vkInterface(), backendCtx->fPhysicalDevice,
+                               backendCtx->fFeatures));
     fCaps.reset(SkRef(fVkCaps.get()));
 
     VK_CALL(GetPhysicalDeviceMemoryProperties(backendCtx->fPhysicalDevice, &fPhysDevMemProps));
 
     const VkCommandPoolCreateInfo cmdPoolInfo = {
         VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO, // sType
         nullptr,                                    // pNext
         VK_COMMAND_POOL_CREATE_TRANSIENT_BIT,       // CmdPoolCreateFlags
         backendCtx->fQueueFamilyIndex,              // queueFamilyIndex
     };
@@ skipping 1297 matching lines @@
     int set_a_break_pt_here = 9;
     aglSwapBuffers(aglGetCurrentContext());
 #elif defined(SK_BUILD_FOR_WIN32)
     SwapBuf();
     int set_a_break_pt_here = 9;
     SwapBuf();
 #endif
 #endif
 }