duckstation

duckstation, but archived from the revision just before upstream changed it to a proprietary software project, this version is the libre one
git clone https://git.neptards.moe/u3shit/duckstation.git
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opengl_context_egl.h (2237B)

      1 // SPDX-FileCopyrightText: 2019-2024 Connor McLaughlin <stenzek@gmail.com>
      2 // SPDX-License-Identifier: (GPL-3.0 OR PolyForm-Strict-1.0.0)
      3 
      4 #pragma once
      5 
      6 #include "opengl_context.h"
      7 
      8 #include "glad/egl.h"
      9 
     10 class OpenGLContextEGL : public OpenGLContext
     11 {
     12 public:
     13   OpenGLContextEGL(const WindowInfo& wi);
     14   ~OpenGLContextEGL() override;
     15 
     16   static std::unique_ptr<OpenGLContext> Create(const WindowInfo& wi, std::span<const Version> versions_to_try,
     17                                                Error* error);
     18 
     19   void* GetProcAddress(const char* name) override;
     20   virtual bool ChangeSurface(const WindowInfo& new_wi) override;
     21   virtual void ResizeSurface(u32 new_surface_width = 0, u32 new_surface_height = 0) override;
     22   bool SwapBuffers() override;
     23   bool IsCurrent() const override;
     24   bool MakeCurrent() override;
     25   bool DoneCurrent() override;
     26   bool SupportsNegativeSwapInterval() const override;
     27   bool SetSwapInterval(s32 interval) override;
     28   virtual std::unique_ptr<OpenGLContext> CreateSharedContext(const WindowInfo& wi, Error* error) override;
     29 
     30 protected:
     31   virtual EGLDisplay GetPlatformDisplay(Error* error);
     32   virtual EGLSurface CreatePlatformSurface(EGLConfig config, void* win, Error* error);
     33 
     34   EGLDisplay TryGetPlatformDisplay(EGLenum platform, const char* platform_ext);
     35   EGLSurface TryCreatePlatformSurface(EGLConfig config, void* window, Error* error);
     36   EGLDisplay GetFallbackDisplay(Error* error);
     37   EGLSurface CreateFallbackSurface(EGLConfig config, void* window, Error* error);
     38 
     39   bool Initialize(std::span<const Version> versions_to_try, Error* error);
     40   bool CreateContext(const Version& version, EGLContext share_context);
     41   bool CreateContextAndSurface(const Version& version, EGLContext share_context, bool make_current);
     42   bool CreateSurface();
     43   bool CreatePBufferSurface();
     44   bool CheckConfigSurfaceFormat(EGLConfig config, GPUTexture::Format format);
     45   GPUTexture::Format GetSurfaceTextureFormat() const;
     46   void DestroyContext();
     47   void DestroySurface();
     48 
     49   EGLDisplay m_display = EGL_NO_DISPLAY;
     50   EGLSurface m_surface = EGL_NO_SURFACE;
     51   EGLContext m_context = EGL_NO_CONTEXT;
     52 
     53   EGLConfig m_config = {};
     54 
     55   bool m_use_ext_platform_base = false;
     56   bool m_supports_negative_swap_interval = false;
     57 };