Added initial implementation of the Vulkan Context Provider.

gpu/vulkan/vulkan_device_queue.h

+// Copyright (c) 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef GPU_VULKAN_VULKAN_DEVICE_QUEUE_H_
+#define GPU_VULKAN_VULKAN_DEVICE_QUEUE_H_
+
+#include <vulkan/vulkan.h>
+
+#include "base/logging.h"
+#include "base/macros.h"
+#include "base/memory/scoped_ptr.h"
+#include "gpu/vulkan/vulkan_export.h"
+
+namespace gpu {
+
+class VulkanCommandPool;
+
+class VULKAN_EXPORT VulkanDeviceQueue {
+ public:
+  enum DeviceQueueOption {
+    GRAPHICS_QUEUE_FLAG = 0x01,
+    PRESENTATION_SUPPORT_QUEUE_FLAG = 0x02,
+  };
+
+  VulkanDeviceQueue();
+  ~VulkanDeviceQueue();
+
+  bool Initialize(uint32_t option);
+  void Destroy();
+
+  VkPhysicalDevice GetVulkanPhysicalDevice() const {
+    DCHECK_NE(static_cast<VkPhysicalDevice>(VK_NULL_HANDLE),
+              vk_physical_device_);
+    return vk_physical_device_;
+  }
+
+  VkDevice GetVulkanDevice() const {
+    DCHECK_NE(static_cast<VkDevice>(VK_NULL_HANDLE), vk_device_);
+    return vk_device_;
+  }
+
+  VkQueue GetVulkanQueue() const {
+    DCHECK_NE(static_cast<VkQueue>(VK_NULL_HANDLE), vk_queue_);
+    return vk_queue_;
+  }
+
+  uint32_t GetVulkanQueueIndex() const { return vk_queue_index_; }
+
+  scoped_ptr<gpu::VulkanCommandPool> CreateCommandPool();
+
+ private:
+  VkPhysicalDevice vk_physical_device_ = VK_NULL_HANDLE;
+  VkDevice vk_device_ = VK_NULL_HANDLE;
+  VkQueue vk_queue_ = VK_NULL_HANDLE;
+  uint32_t vk_queue_index_ = 0;
+
+  DISALLOW_COPY_AND_ASSIGN(VulkanDeviceQueue);
+};
+
+}  // namespace gpu
+
+#endif  // GPU_VULKAN_VULKAN_DEVICE_QUEUE_H_