// Draws a captured frame texture into the current render target as a letterboxed
// full-screen image (aspect-preserved; the cleared background fills the bars).
#pragma once

#include <cstdint>

#include <d3d11.h>
#include <wrl/client.h>

namespace coop
{

class FrameRenderer
{
public:
	bool init(ID3D11Device* device);

	// Draws `srv` (a srcW x srcH image) centered and scaled to fit within a
	// dstW x dstH target. Sets its own viewport; callers that draw afterwards
	// (e.g. ImGui) should restore theirs.
	void draw(ID3D11DeviceContext* ctx, ID3D11ShaderResourceView* srv, std::uint32_t src_w, std::uint32_t src_h,
	          std::uint32_t dst_w, std::uint32_t dst_h);

private:
	Microsoft::WRL::ComPtr<ID3D11VertexShader> vs_;
	Microsoft::WRL::ComPtr<ID3D11PixelShader> ps_;
	Microsoft::WRL::ComPtr<ID3D11SamplerState> sampler_;
};

} // namespace coop