Added initial implementation of Vulkan Render Passes.

gpu/vulkan/vulkan_swap_chain.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_SWAP_CHAIN_H_
+#define GPU_VULKAN_VULKAN_SWAP_CHAIN_H_
+
+#include <vector>
+#include <vulkan/vulkan.h>
+
+#include "base/memory/scoped_ptr.h"
+#include "gpu/vulkan/vulkan_command_buffer.h"
+
+namespace gfx {
+
+class VulkanSwapChain {
+ public:
+  VulkanSwapChain();
+  ~VulkanSwapChain();
+
+  bool Initialize(VkCommandBuffer command_buffer,
+                  VkSurfaceKHR surface,
+                  const VkSurfaceCapabilitiesKHR& surface_caps,
+                  const VkSurfaceFormatKHR& surface_format,
+                  const VkComponentMapping& view_mapping);
+  void Destroy();
+
+  void SwapBuffers();
+
+ private:
+  bool InitializeSwapChain(VkSurfaceKHR surface,
+                           const VkSurfaceCapabilitiesKHR& surface_caps,
+                           const VkSurfaceFormatKHR& surface_format);
+  bool InitializeRenderPass(const VkSurfaceFormatKHR& surface_format);
+  bool InitializeSwapBuffers(VkCommandBuffer command_buffer,
+                             const VkSurfaceCapabilitiesKHR& surface_caps,
+                             const VkSurfaceFormatKHR& surface_format,
+                             const VkComponentMapping& view_mapping);
+
+  VkSwapchainKHR swap_chain_ = VK_NULL_HANDLE;
+  VkRenderPass render_pass_ = VK_NULL_HANDLE;
+
+  struct BufferData {
+    BufferData();
+    ~BufferData();
+
+    VkImage image = VK_NULL_HANDLE;
+    VkImageView image_view = VK_NULL_HANDLE;
+    VkFramebuffer frame_buffer = VK_NULL_HANDLE;
+    scoped_ptr<VulkanCommandBuffer> command_buffer;
+  };
+  std::vector<scoped_ptr<BufferData>> buffers_;

[piman, 2016/03/09 01:25:35]

nit: "buffer" can be a bit confusing, because in Vulkan it really means "linear
memory used for vertex buffers or constants", not "images"/"render targets".

[David Yen, 2016/03/10 01:39:49]

Renamed to ImageData/images_. Done.

+  uint32_t current_buffer_ = 0;
+};
+
+}  // namespace gfx
+
+#endif  // GPU_VULKAN_VULKAN_SWAP_CHAIN_H_