kc3-lang/SDL/src/video/android/SDL_androidgl.c

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• Hash : 22a2decf
  Author :
  Date : 2019-06-28T16:38:42
  

  Android: concurrency issues, make sure Activity is in running State when calling functions like SDL_CreateWindow, SDL_CreateRenderer, Android_GLES_CreateContext Bugs 4694, 4681, 4142

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• src/video/android/SDL_androidgl.c

• /*
    Simple DirectMedia Layer
    Copyright (C) 1997-2019 Sam Lantinga <slouken@libsdl.org>
  
    This software is provided 'as-is', without any express or implied
    warranty.  In no event will the authors be held liable for any damages
    arising from the use of this software.
  
    Permission is granted to anyone to use this software for any purpose,
    including commercial applications, and to alter it and redistribute it
    freely, subject to the following restrictions:
  
    1. The origin of this software must not be misrepresented; you must not
       claim that you wrote the original software. If you use this software
       in a product, an acknowledgment in the product documentation would be
       appreciated but is not required.
    2. Altered source versions must be plainly marked as such, and must not be
       misrepresented as being the original software.
    3. This notice may not be removed or altered from any source distribution.
  */
  #include "../../SDL_internal.h"
  
  #if SDL_VIDEO_DRIVER_ANDROID
  
  /* Android SDL video driver implementation */
  
  #include "SDL_video.h"
  #include "../SDL_egl_c.h"
  #include "SDL_androidwindow.h"
  
  #include "SDL_androidvideo.h"
  #include "SDL_androidgl.h"
  #include "../../core/android/SDL_android.h"
  
  #include <android/log.h>
  
  #include <dlfcn.h>
  
  int
  Android_GLES_MakeCurrent(_THIS, SDL_Window * window, SDL_GLContext context)
  {
      if (window && context) {
          return SDL_EGL_MakeCurrent(_this, ((SDL_WindowData *) window->driverdata)->egl_surface, context);
      } else {
          return SDL_EGL_MakeCurrent(_this, NULL, NULL);
      }
  }
  
  SDL_GLContext
  Android_GLES_CreateContext(_THIS, SDL_Window * window)
  {
      SDL_GLContext ret;
  
      Android_ActivityMutex_Lock_Running();
  
      ret = SDL_EGL_CreateContext(_this, ((SDL_WindowData *) window->driverdata)->egl_surface);
  
      SDL_UnlockMutex(Android_ActivityMutex);
  
      return ret;
  }
  
  int
  Android_GLES_SwapWindow(_THIS, SDL_Window * window)
  {
      int retval;
  
      SDL_LockMutex(Android_ActivityMutex);
  
      /* The following two calls existed in the original Java code
       * If you happen to have a device that's affected by their removal,
       * please report to Bugzilla. -- Gabriel
       */
  
      /*_this->egl_data->eglWaitNative(EGL_CORE_NATIVE_ENGINE);
      _this->egl_data->eglWaitGL();*/
      retval = SDL_EGL_SwapBuffers(_this, ((SDL_WindowData *) window->driverdata)->egl_surface);
  
      SDL_UnlockMutex(Android_ActivityMutex);
  
      return retval;
  }
  
  int
  Android_GLES_LoadLibrary(_THIS, const char *path) {
      return SDL_EGL_LoadLibrary(_this, path, (NativeDisplayType) 0, 0);
  }
  
  #endif /* SDL_VIDEO_DRIVER_ANDROID */
  
  /* vi: set ts=4 sw=4 expandtab: */
  

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