#ifndef RENDER_D3D12_H
#define RENDER_D3D12_H

#define COBJMACROS 1
#include <d3d12.h>
#include <dxgi1_4.h>

///////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//~

#define R_NUM_FRAMES_IN_FLIGHT 3



///////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//~


typedef struct R_D3D12_Command R_D3D12_Command;
struct R_D3D12_Command
{
  Arena *arena;
  ID3D12CommandQueue *queue;
  ID3D12CommandAllocator *allocator;
  ID3D12GraphicsCommandList *list1;
};

typedef struct R_D3D12_RenderTarget R_D3D12_RenderTarget;
struct R_D3D12_RenderTarget
{
  Arena *arena;
  ID3D12DescriptorHeap *heap;
  D3D12_CPU_DESCRIPTOR_HANDLE handle;
  U32 descriptor_size;
  ID3D12Resource *targets[R_NUM_FRAMES_IN_FLIGHT];
};

typedef struct R_D3D12_State R_D3D12_State;
struct R_D3D12_State
{
  Arena *arena;
  HWND window_handle;
  ID3D12Device *device;
  ID3D12Debug  *debug;
  IDXGISwapChain3 *swapchain;
  ID3D12Fence *fence;
  U64 fence_value;
  U64 frame_fence_values[R_NUM_FRAMES_IN_FLIGHT];
  HANDLE fence_event;
};

///////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//~
internal LRESULT  r_d3d12_create_swapchain(IDXGIFactory4 *factory);
internal void r_d3d12_wait_for_previous_frame();
#endif /* RENDER_D3D12_H */