Duckstation/src/duckstation-regtest/regtest_host_display.h

#pragma once
#include "core/host_display.h"
#include <string>

class RegTestHostDisplay final : public HostDisplay
{
public:
  RegTestHostDisplay();
  ~RegTestHostDisplay();

  void DumpFrame(const std::string& filename);

  RenderAPI GetRenderAPI() const override;
  void* GetRenderDevice() const override;
  void* GetRenderContext() const override;

  bool HasRenderDevice() const override;
  bool HasRenderSurface() const override;

  bool CreateRenderDevice(const WindowInfo& wi, std::string_view adapter_name, bool debug_device,
                          bool threaded_presentation) override;
  bool InitializeRenderDevice(std::string_view shader_cache_directory, bool debug_device,
                              bool threaded_presentation) override;
  void DestroyRenderDevice() override;

  bool MakeRenderContextCurrent() override;
  bool DoneRenderContextCurrent() override;

  bool ChangeRenderWindow(const WindowInfo& wi) override;
  void ResizeRenderWindow(s32 new_window_width, s32 new_window_height) override;
  bool SupportsFullscreen() const override;
  bool IsFullscreen() override;
  bool SetFullscreen(bool fullscreen, u32 width, u32 height, float refresh_rate) override;
  void DestroyRenderSurface() override;

  bool SetPostProcessingChain(const std::string_view& config) override;

  bool CreateResources() override;
  void DestroyResources() override;

  AdapterAndModeList GetAdapterAndModeList() override;
  bool CreateImGuiContext() override;
  void DestroyImGuiContext() override;
  bool UpdateImGuiFontTexture() override;

  std::unique_ptr<HostDisplayTexture> CreateTexture(u32 width, u32 height, u32 layers, u32 levels, u32 samples,
                                                    HostDisplayPixelFormat format, const void* data, u32 data_stride,
                                                    bool dynamic = false) override;
  void UpdateTexture(HostDisplayTexture* texture, u32 x, u32 y, u32 width, u32 height, const void* data,
                     u32 data_stride) override;
  bool DownloadTexture(const void* texture_handle, HostDisplayPixelFormat texture_format, u32 x, u32 y, u32 width,
                       u32 height, void* out_data, u32 out_data_stride) override;

  void SetVSync(bool enabled) override;

  bool Render() override;
  bool RenderScreenshot(u32 width, u32 height, std::vector<u32>* out_pixels, u32* out_stride,
                        HostDisplayPixelFormat* out_format) override;

  bool SupportsDisplayPixelFormat(HostDisplayPixelFormat format) const override;

  bool BeginSetDisplayPixels(HostDisplayPixelFormat format, u32 width, u32 height, void** out_buffer,
                             u32* out_pitch) override;
  void EndSetDisplayPixels() override;

private:
  std::vector<u32> m_frame_buffer;
  HostDisplayPixelFormat m_frame_buffer_format = HostDisplayPixelFormat::Unknown;
  u32 m_frame_buffer_pitch = 0;
};