[vkjson] Add support of VK_KHR_shader_float16_int8.

Bug: b/150335028
Test: adb shell cmd gpu vkjson
Change-Id: Ie9808e0f8d79d6992e5cb480a24c0f98e5437df1
diff --git a/vulkan/vkjson/vkjson.cc b/vulkan/vkjson/vkjson.cc
index 8f714d8..b0b466c 100644
--- a/vulkan/vkjson/vkjson.cc
+++ b/vulkan/vkjson/vkjson.cc
@@ -591,6 +591,13 @@
 }
 
 template <typename Visitor>
+inline bool Iterate(Visitor* visitor,
+                    VkJsonExtShaderFloat16Int8Features* features) {
+  return visitor->Visit("shaderFloat16Int8FeaturesKHR",
+                        &features->shader_float16_int8_features_khr);
+}
+
+template <typename Visitor>
 inline bool Iterate(Visitor* visitor, VkMemoryType* type) {
   return
     visitor->Visit("propertyFlags", &type->propertyFlags) &&
@@ -692,6 +699,13 @@
 
 template <typename Visitor>
 inline bool Iterate(Visitor* visitor,
+                    VkPhysicalDeviceShaderFloat16Int8FeaturesKHR* features) {
+  return visitor->Visit("shaderFloat16", &features->shaderFloat16) &&
+         visitor->Visit("shaderInt8", &features->shaderInt8);
+}
+
+template <typename Visitor>
+inline bool Iterate(Visitor* visitor,
                     VkPhysicalDeviceProtectedMemoryFeatures* features) {
   return visitor->Visit("protectedMemory", &features->protectedMemory);
 }
@@ -824,6 +838,10 @@
         ret &= visitor->Visit("VK_KHR_variable_pointers",
                             &device->ext_variable_pointer_features);
       }
+      if (device->ext_shader_float16_int8_features.reported) {
+        ret &= visitor->Visit("VK_KHR_shader_float16_int8",
+                              &device->ext_shader_float16_int8_features);
+      }
   }
   return ret;
 }
diff --git a/vulkan/vkjson/vkjson.h b/vulkan/vkjson/vkjson.h
index 450fb24..a283b83 100644
--- a/vulkan/vkjson/vkjson.h
+++ b/vulkan/vkjson/vkjson.h
@@ -72,6 +72,16 @@
   VkPhysicalDeviceVariablePointerFeaturesKHR variable_pointer_features_khr;
 };
 
+struct VkJsonExtShaderFloat16Int8Features {
+  VkJsonExtShaderFloat16Int8Features() {
+    reported = false;
+    memset(&shader_float16_int8_features_khr, 0,
+           sizeof(VkPhysicalDeviceShaderFloat16Int8FeaturesKHR));
+  }
+  bool reported;
+  VkPhysicalDeviceShaderFloat16Int8FeaturesKHR shader_float16_int8_features_khr;
+};
+
 struct VkJsonDevice {
   VkJsonDevice() {
     memset(&properties, 0, sizeof(VkPhysicalDeviceProperties));
@@ -101,6 +111,7 @@
   VkPhysicalDeviceFeatures features;
   VkJsonExtDriverProperties ext_driver_properties;
   VkJsonExtVariablePointerFeatures ext_variable_pointer_features;
+  VkJsonExtShaderFloat16Int8Features ext_shader_float16_int8_features;
   VkPhysicalDeviceMemoryProperties memory;
   std::vector<VkQueueFamilyProperties> queues;
   std::vector<VkExtensionProperties> extensions;
diff --git a/vulkan/vkjson/vkjson_instance.cc b/vulkan/vkjson/vkjson_instance.cc
index 05d4dfe..84cfe5e 100644
--- a/vulkan/vkjson/vkjson_instance.cc
+++ b/vulkan/vkjson/vkjson_instance.cc
@@ -136,6 +136,16 @@
       features.pNext =
           &device.ext_variable_pointer_features.variable_pointer_features_khr;
     }
+    if (HasExtension("VK_KHR_shader_float16_int8", device.extensions)) {
+      device.ext_shader_float16_int8_features.reported = true;
+      device.ext_shader_float16_int8_features.shader_float16_int8_features_khr
+          .sType =
+          VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_FLOAT16_INT8_FEATURES_KHR;
+      device.ext_shader_float16_int8_features.shader_float16_int8_features_khr
+          .pNext = features.pNext;
+      features.pNext = &device.ext_shader_float16_int8_features
+                            .shader_float16_int8_features_khr;
+    }
     vkpGetPhysicalDeviceFeatures2KHR(physical_device, &features);
     device.features = features.features;
   } else {