Seele/src/Engine/Graphics/Vulkan/Command.h

#pragma once
#include "Buffer.h"
#include "Graphics/Command.h"
#include "Queue.h"
#include <thread>

namespace Seele {
namespace Vulkan {
DECLARE_REF(RenderPass)
DECLARE_REF(Framebuffer)
DECLARE_REF(RenderCommand)
DECLARE_REF(ComputeCommand)
DECLARE_REF(DescriptorSet)
DECLARE_REF(CommandPool)
class Command {
public:
  Command(PGraphics graphics, PCommandPool pool);
  ~Command();
  constexpr VkCommandBuffer getHandle() { return handle; }
  void reset();
  void begin();
  void end();
  void beginRenderPass(PRenderPass renderPass, PFramebuffer framebuffer);
  void endRenderPass();
  void executeCommands(Array<Gfx::ORenderCommand> secondaryCommands);
  void executeCommands(Array<Gfx::OComputeCommand> secondaryCommands);
  void waitForSemaphore(VkPipelineStageFlags stages, PSemaphore waitSemaphore);
  void checkFence();
  void waitForCommand(uint32 timeToWait = 1000000u);
  PFence getFence();
  PCommandPool getPool();
  enum State {
    Init,
    Begin,
    RenderPass,
    End,
    Submit,
  };

private:
  PGraphics graphics;
  PCommandPool pool;
  OFence fence;
  OSemaphore signalSemaphore;
  State state;
  VkViewport currentViewport;
  VkRect2D currentScissor;
  VkCommandBuffer handle;
  PRenderPass boundRenderPass;
  PFramebuffer boundFramebuffer;
  Array<PSemaphore> waitSemaphores;
  Array<VkPipelineStageFlags> waitFlags;
  Array<ORenderCommand> executingRenders;
  Array<OComputeCommand> executingComputes;
  Array<PDescriptorSet> boundDescriptors;
  friend class RenderCommand;
  friend class CommandPool;
  friend class Queue;
};
DEFINE_REF(Command)

DECLARE_REF(GraphicsPipeline)
DECLARE_REF(ComputePipeline)
class RenderCommand : public Gfx::RenderCommand {
public:
  RenderCommand(PGraphics graphics, VkCommandPool cmdPool);
  virtual ~RenderCommand();
  constexpr VkCommandBuffer getHandle() { return handle; }
  void begin(PRenderPass renderPass, PFramebuffer framebuffer);
  void end();
  void reset();
  bool isReady();
  virtual void setViewport(Gfx::PViewport viewport) override;
  virtual void bindPipeline(Gfx::PGraphicsPipeline pipeline) override;
  virtual void bindDescriptor(Gfx::PDescriptorSet descriptorSet) override;
  virtual void
  bindDescriptor(const Array<Gfx::PDescriptorSet> &descriptorSets) override;
  virtual void
  bindVertexBuffer(const Array<Gfx::PVertexBuffer> &buffers) override;
  virtual void bindIndexBuffer(Gfx::PIndexBuffer indexBuffer) override;
  virtual void pushConstants(Gfx::PPipelineLayout layout,
                             Gfx::SeShaderStageFlags stage, uint32 offset,
                             uint32 size, const void *data) override;
  virtual void draw(uint32 vertexCount, uint32 instanceCount, int32 firstVertex,
                    uint32 firstInstance) override;
  virtual void drawIndexed(uint32 indexCount, uint32 instanceCount,
                           int32 firstIndex, uint32 vertexOffset,
                           uint32 firstInstance) override;
  virtual void drawMesh(uint32 groupX, uint32 groupY, uint32 groupZ) override;

private:
  PGraphicsPipeline pipeline;
  bool ready;
  Array<PDescriptorSet> boundDescriptors;
  VkViewport currentViewport;
  VkRect2D currentScissor;
  PGraphics graphics;
  std::thread::id threadId;
  VkCommandBuffer handle;
  VkCommandPool owner;
  friend class Command;
};
DEFINE_REF(RenderCommand)

class ComputeCommand : public Gfx::ComputeCommand {
public:
  ComputeCommand(PGraphics graphics, VkCommandPool cmdPool);
  virtual ~ComputeCommand();
  inline VkCommandBuffer getHandle() { return handle; }
  void begin();
  void end();
  void reset();
  bool isReady();
  virtual void bindPipeline(Gfx::PComputePipeline pipeline) override;
  virtual void bindDescriptor(Gfx::PDescriptorSet set) override;
  virtual void bindDescriptor(const Array<Gfx::PDescriptorSet> &sets) override;
  virtual void pushConstants(Gfx::PPipelineLayout layout,
                             Gfx::SeShaderStageFlags stage, uint32 offset,
                             uint32 size, const void *data) override;
  virtual void dispatch(uint32 threadX, uint32 threadY,
                        uint32 threadZ) override;

private:
  PComputePipeline pipeline;
  bool ready;
  Array<PDescriptorSet> boundDescriptors;
  VkViewport currentViewport;
  VkRect2D currentScissor;
  PGraphics graphics;
  std::thread::id threadId;
  VkCommandBuffer handle;
  VkCommandPool owner;
  friend class Command;
};
DEFINE_REF(ComputeCommand)
class CommandPool {
public:
  CommandPool(PGraphics graphics, PQueue queue);
  virtual ~CommandPool();
  constexpr PQueue getQueue() const { return queue; }
  PCommand getCommands();
  void cacheCommands(Array<ORenderCommand> commands);
  void cacheCommands(Array<OComputeCommand> commands);
  ORenderCommand createRenderCommand(const std::string &name);
  OComputeCommand createComputeCommand(const std::string &name);
  constexpr VkCommandPool getHandle() const { return commandPool; }
  void submitCommands(PSemaphore signalSemaphore = nullptr);

private:
  PGraphics graphics;
  VkCommandPool commandPool;
  PQueue queue;
  uint32 queueFamilyIndex;
  PCommand command;
  Array<OCommand> allocatedBuffers;
  Array<ORenderCommand> allocatedRenderCommands;
  Array<OComputeCommand> allocatedComputeCommands;
};
DEFINE_REF(CommandPool)
} // namespace Vulkan
} // namespace Seele