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// metal-swap-chain.h
#pragma once
#include "metal-base.h"
#include "metal-command-queue.h"
#include "metal-device.h"
#include "metal-texture.h"
namespace gfx
{
using namespace Slang;
namespace metal
{
class SwapchainImpl : public ISwapchain, public ComObject
{
public:
SLANG_COM_OBJECT_IUNKNOWN_ALL
ISwapchain* getInterface(const Guid& guid);
public:
RefPtr<DeviceImpl> m_device;
ISwapchain::Desc m_desc;
WindowHandle m_windowHandle;
CA::MetalLayer* m_metalLayer = nullptr;
ShortList<RefPtr<TextureResourceImpl>> m_images;
NS::SharedPtr<CA::MetalDrawable> m_currentDrawable;
Index m_currentImageIndex = -1;
MTL::PixelFormat m_metalFormat = MTL::PixelFormat::PixelFormatInvalid;
void getWindowSize(int& widthOut, int& heightOut) const;
void createImages();
public:
~SwapchainImpl();
Result init(DeviceImpl* device, const ISwapchain::Desc& desc, WindowHandle window);
virtual SLANG_NO_THROW const Desc& SLANG_MCALL getDesc() override { return m_desc; }
virtual SLANG_NO_THROW Result SLANG_MCALL
getImage(GfxIndex index, ITextureResource** outResource) override;
virtual SLANG_NO_THROW Result SLANG_MCALL resize(GfxCount width, GfxCount height) override;
virtual SLANG_NO_THROW Result SLANG_MCALL present() override;
virtual SLANG_NO_THROW int SLANG_MCALL acquireNextImage() override;
virtual SLANG_NO_THROW bool SLANG_MCALL isOccluded() override { return false; }
virtual SLANG_NO_THROW Result SLANG_MCALL setFullScreenMode(bool mode) override;
};
} // namespace metal
} // namespace gfx
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