1 files changed, 171 insertions, 0 deletions
diff --git a/libs/vkjson/vkjson_instance.cc b/libs/vkjson/vkjson_instance.cc
new file mode 100644
index 000000000..f1cd98d61
--- /dev/null
+++ b/libs/vkjson/vkjson_instance.cc
@@ -0,0 +1,171 @@
+///////////////////////////////////////////////////////////////////////////////
+//
+// Copyright (c) 2015-2016 The Khronos Group Inc.
+// Copyright (c) 2015-2016 Valve Corporation
+// Copyright (c) 2015-2016 LunarG, Inc.
+// Copyright (c) 2015-2016 Google, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and/or associated documentation files (the "Materials"), to
+// deal in the Materials without restriction, including without limitation the
+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+// sell copies of the Materials, and to permit persons to whom the Materials are
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice(s) and this permission notice shall be included in
+// all copies or substantial portions of the Materials.
+//
+// THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+//
+// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE MATERIALS OR THE
+// USE OR OTHER DEALINGS IN THE MATERIALS.
+///////////////////////////////////////////////////////////////////////////////
+
+#define VK_PROTOTYPES
+#include "vkjson.h"
+
+#include <utility>
+
+namespace {
+bool EnumerateExtensions(const char* layer_name,
+                         std::vector<VkExtensionProperties>* extensions) {
+  VkResult result;
+  uint32_t count = 0;
+  result = vkEnumerateInstanceExtensionProperties(layer_name, &count, nullptr);
+  if (result != VK_SUCCESS)
+    return false;
+  extensions->resize(count);
+  result = vkEnumerateInstanceExtensionProperties(layer_name, &count,
+                                                  extensions->data());
+  if (result != VK_SUCCESS)
+    return false;
+  return true;
+}
+
+}  // anonymous namespace
+
+VkJsonDevice VkJsonGetDevice(VkPhysicalDevice physical_device) {
+  VkJsonDevice device;
+  vkGetPhysicalDeviceProperties(physical_device, &device.properties);
+  vkGetPhysicalDeviceFeatures(physical_device, &device.features);
+  vkGetPhysicalDeviceMemoryProperties(physical_device, &device.memory);
+
+  uint32_t queue_family_count = 0;
+  vkGetPhysicalDeviceQueueFamilyProperties(physical_device, &queue_family_count,
+                                           nullptr);
+  if (queue_family_count > 0) {
+    device.queues.resize(queue_family_count);
+    vkGetPhysicalDeviceQueueFamilyProperties(
+        physical_device, &queue_family_count, device.queues.data());
+  }
+
+  // Only device extensions.
+  // TODO(piman): do we want to show layer extensions?
+  uint32_t extension_count = 0;
+  vkEnumerateDeviceExtensionProperties(physical_device, nullptr,
+                                       &extension_count, nullptr);
+  if (extension_count > 0) {
+    device.extensions.resize(extension_count);
+    vkEnumerateDeviceExtensionProperties(
+        physical_device, nullptr, &extension_count, device.extensions.data());
+  }
+
+  uint32_t layer_count = 0;
+  vkEnumerateDeviceLayerProperties(physical_device, &layer_count, nullptr);
+  if (layer_count > 0) {
+    device.layers.resize(layer_count);
+    vkEnumerateDeviceLayerProperties(physical_device, &layer_count,
+                                     device.layers.data());
+  }
+
+  VkFormatProperties format_properties = {};
+  for (VkFormat format = VK_FORMAT_R4G4_UNORM_PACK8;
+       format <= VK_FORMAT_END_RANGE;
+       format = static_cast<VkFormat>(format + 1)) {
+    vkGetPhysicalDeviceFormatProperties(physical_device, format,
+                                        &format_properties);
+    if (format_properties.linearTilingFeatures ||
+        format_properties.optimalTilingFeatures ||
+        format_properties.bufferFeatures) {
+      device.formats.insert(std::make_pair(format, format_properties));
+    }
+  }
+  return device;
+}
+
+VkJsonInstance VkJsonGetInstance() {
+  VkJsonInstance instance;
+  VkResult result;
+  uint32_t count;
+
+  count = 0;
+  result = vkEnumerateInstanceLayerProperties(&count, nullptr);
+  if (result != VK_SUCCESS)
+    return VkJsonInstance();
+  if (count > 0) {
+    std::vector<VkLayerProperties> layers(count);
+    result = vkEnumerateInstanceLayerProperties(&count, layers.data());
+    if (result != VK_SUCCESS)
+      return VkJsonInstance();
+    instance.layers.reserve(count);
+    for (auto& layer : layers) {
+      instance.layers.push_back(VkJsonLayer{layer, std::vector<VkExtensionProperties>()});
+      if (!EnumerateExtensions(layer.layerName,
+                               &instance.layers.back().extensions))
+        return VkJsonInstance();
+    }
+  }
+
+  if (!EnumerateExtensions(nullptr, &instance.extensions))
+    return VkJsonInstance();
+
+  std::vector<const char*> layer_names;
+  layer_names.reserve(instance.layers.size());
+  for (auto& layer : instance.layers)
+    layer_names.push_back(layer.properties.layerName);
+
+  const VkApplicationInfo app_info = {VK_STRUCTURE_TYPE_APPLICATION_INFO,
+                                      nullptr,
+                                      "vkjson_info",
+                                      1,
+                                      "",
+                                      0,
+                                      VK_API_VERSION_1_0};
+  VkInstanceCreateInfo instance_info = {
+      VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO,
+      nullptr,
+      0,
+      &app_info,
+      static_cast<uint32_t>(layer_names.size()),
+      layer_names.data(),
+      0,
+      nullptr};
+  VkInstance vkinstance;
+  result = vkCreateInstance(&instance_info, nullptr, &vkinstance);
+  if (result != VK_SUCCESS)
+    return VkJsonInstance();
+
+  count = 0;
+  result = vkEnumeratePhysicalDevices(vkinstance, &count, nullptr);
+  if (result != VK_SUCCESS) {
+    vkDestroyInstance(vkinstance, nullptr);
+    return VkJsonInstance();
+  }
+  std::vector<VkPhysicalDevice> devices(count, VK_NULL_HANDLE);
+  result = vkEnumeratePhysicalDevices(vkinstance, &count, devices.data());
+  if (result != VK_SUCCESS) {
+    vkDestroyInstance(vkinstance, nullptr);
+    return VkJsonInstance();
+  }
+
+  instance.devices.reserve(devices.size());
+  for (auto device : devices)
+    instance.devices.emplace_back(VkJsonGetDevice(device));
+
+  vkDestroyInstance(vkinstance, nullptr);
+  return instance;
+}