RenderPass.h

Go to the documentation of this file.

// Copyright (c) 2018 the Talvos developers. All rights reserved.
//
// This file is distributed under a three-clause BSD license. For full license
// terms please see the LICENSE file distributed with this source code.


#ifndef TALVOS_RENDERPASS_H
#define TALVOS_RENDERPASS_H

#include <vector>

#include "vulkan/vulkan_core.h"

namespace talvos
{
class Device;
class ImageView;

class Framebuffer
{
public:
  Framebuffer(Device &Dev, uint32_t Width, uint32_t Height, uint32_t NumLayers,
              const std::vector<ImageView *> &Attachments)
      : Dev(Dev), Width(Width), Height(Height), NumLayers(NumLayers),
        Attachments(Attachments){};

  const std::vector<ImageView *> &getAttachments() const { return Attachments; }

  Device &getDevice() const { return Dev; }

  uint32_t getHeight() const { return Height; }

  uint32_t getNumLayers() const { return NumLayers; }

  uint32_t getWidth() const { return Width; }

private:
  Device &Dev; 

  uint32_t Width;  
  uint32_t Height; 

  uint32_t NumLayers; 

  std::vector<ImageView *> Attachments;
};

struct Subpass
{
  std::vector<uint32_t> InputAttachments;
  std::vector<uint32_t> ColorAttachments;
  std::vector<uint32_t> ResolveAttachments;
  std::vector<uint32_t> PreserveAttachments;
  uint32_t DepthStencilAttachment;
};

class RenderPass
{
public:
  RenderPass(const std::vector<VkAttachmentDescription> &Attachments,
             std::vector<Subpass> Subpasses)
      : Attachments(Attachments), Subpasses(Subpasses){};

  const VkAttachmentDescription &getAttachment(uint32_t Index) const;

  uint32_t getNumAttachments() const { return (uint32_t)Attachments.size(); }

  const Subpass &getSubpass(uint32_t Index) const;

private:
  std::vector<VkAttachmentDescription> Attachments;

  const std::vector<Subpass> Subpasses;
};

class RenderPassInstance
{
public:
  RenderPassInstance(const RenderPass &RP, const Framebuffer &FB,
                     const std::vector<VkClearValue> &ClearValues)
      : RP(RP), FB(FB), ClearValues(ClearValues), Rendering(false){};

  void begin();

  void end();

  const Framebuffer &getFramebuffer() const { return FB; }

  const RenderPass &getRenderPass() const { return RP; }

  uint32_t getSubpassIndex() const { return SubpassIndex; }

  void nextSubpass();

private:
  const RenderPass &RP;

  const Framebuffer &FB;

  std::vector<VkClearValue> ClearValues;

  bool Rendering;

  uint32_t SubpassIndex;

  std::vector<bool> AttachmentsInitialized;

  void beginSubpass();

  void endSubpass();
};

}; // namespace talvos

#endif