kc3-lang/SDL/src

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• Hash : 6a342954
  Author :
  Date : 2021-01-14T14:42:53
  

  Fixed bug 5451 - Can't create EGLSurface in Wayland from SDLWindow (no EGLNativeWindow pointer)
  
  sashikknox
  
  In some cases, need create EGLWindow with SDLWindow. In X11 i can get pointer to NativeWindow from **struct SDL_SysWMinfo wmInfo**
  ```C++
  struct SDL_SysWMinfo wmInfo;
  SDL_GetWindowWMInfo(ptSDLWindow, &wmInfo)
  #if defined(__unix__) && defined(SDL_VIDEO_DRIVER_X11)
  nativeWindow=(EGLNativeWindowType)wmInfo.info.x11.window;
  nativeDisplay=(EGLNativeDisplayType)wmInfo.info.x11.display;
  #endif
  ```
  than i can create EGLSurface
  ```
  eglCreateWindowSurface(nativeDisplay, EGL_CONFIG, nativeWindow, SURFACE_ATTRIBUTES);
  ```
  in Wayland i can do it with same way, just need pointer to **EGLWindow**, we already have pointer to **wl_display** from **SDL_sysWMInfo**, need add to **wl** struct in SDL_SysWMInfo another pointer to **struct wl_egl_window *egl_window;**. And in wayland backend, in function **Wayland_GetWindowWMInfo** return pointer to **egl_window** from **SDL_WindowData**
  Now i use patched statically built SDL2 in port of Quake 2 GLES2 for SailfishOS (it use QtWayland):
  link to SDL2 commit and changed string for patch:
  - https://github.com/savegame/lp-public/commit/6858a618cd179b766fe3cab36055f07cb03ad0ea
  - https://github.com/savegame/lp-public/blob/b1e29e87b9d15780e47f04918b329ac15554fc69/SDL2/src/video/wayland/SDL_waylandwindow.c#L463
  
  link to use in Quake2 port:
  1. here i get pointer to EGLNativeWindowType:  https://github.com/savegame/lp-public/blob/6d94fedb1b720da24999ae6286a1809cd3d55ff5/Engine/Sources/Compatibility/OpenGLES/EGLWrapper.c#L319
  2. then use it for create EGLSurface: https://github.com/savegame/lp-public/blob/6d94fedb1b720da24999ae6286a1809cd3d55ff5/Engine/Sources/Compatibility/OpenGLES/EGLWrapper.c#L391
  

• Files

• SDL.c
• SDL_assert.c
• SDL_assert_c.h
• SDL_dataqueue.c
• SDL_dataqueue.h
• SDL_error.c
• SDL_error_c.h
• SDL_hints.c
• SDL_hints_c.h
• SDL_internal.h
• SDL_log.c
• atomic/
• audio/
• core/
• cpuinfo/
• dynapi/
• events/
• file/
• filesystem/
• haptic/
• hidapi/
• joystick/
• libm/
• loadso/
• locale/
• main/
• misc/
• power/
• render/
• sensor/
• stdlib/
• test/
• thread/
• timer/
• video/

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• Git HTTP	https://git.kmx.io/kc3-lang/SDL.git
  Git SSH	git@git.kmx.io:kc3-lang/SDL.git
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