Make max number of vertex attributes be checked dynamically

src/gpu/vk/GrVkCaps.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 "GrVkCaps.h"
 
 #include "GrVkUtil.h"
@@ skipping 84 matching lines @@
     VkSampleCountFlags colorSamples = properties.limits.framebufferColorSampleCounts;
     VkSampleCountFlags stencilSamples = properties.limits.framebufferStencilSampleCounts;
 
     fMaxColorSampleCount = get_max_sample_count(colorSamples);
     fMaxStencilSampleCount = get_max_sample_count(stencilSamples);
 }
 
 void GrVkCaps::initGrCaps(const VkPhysicalDeviceProperties& properties,
                           const VkPhysicalDeviceFeatures& features,
                           const VkPhysicalDeviceMemoryProperties& memoryProperites) {
+    fMaxVertexAttributes = properties.limits.maxVertexInputAttributes;
     // We could actually query and get a max size for each config, however maxImageDimension2D will
     // give the minimum max size across all configs. So for simplicity we will use that for now.
     fMaxRenderTargetSize = properties.limits.maxImageDimension2D;
     fMaxTextureSize = properties.limits.maxImageDimension2D;
 
     this->initSampleCount(properties);
 
     // Assuming since we will always map in the end to upload the data we might as well just map
     // from the get go. There is no hard data to suggest this is faster or slower.
     fGeometryBufferMapThreshold = 0;
@@ skipping 155 matching lines @@
                   // internal Format             stencil bits      total bits        packed?
         gS8    = { VK_FORMAT_S8_UINT,            8,                 8,               false },
         gD24S8 = { VK_FORMAT_D24_UNORM_S8_UINT,  8,                32,               true };
 
     // I'm simply assuming that these two will be supported since they are used in example code.
     // TODO: Actaully figure this out
     SET_CONFIG_CAN_STENCIL(gS8);
     SET_CONFIG_CAN_STENCIL(gD24S8);
 }