src/video/android/SDL_androidgl.c
author Sylvain Becker <sylvain.becker@gmail.com>
Fri, 28 Jun 2019 16:38:42 +0200
changeset 12910 dd9169424181
parent 12908 ec53745bdb23
permissions -rw-r--r--
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
     1 /*
     2   Simple DirectMedia Layer
     3   Copyright (C) 1997-2019 Sam Lantinga <slouken@libsdl.org>
     4 
     5   This software is provided 'as-is', without any express or implied
     6   warranty.  In no event will the authors be held liable for any damages
     7   arising from the use of this software.
     8 
     9   Permission is granted to anyone to use this software for any purpose,
    10   including commercial applications, and to alter it and redistribute it
    11   freely, subject to the following restrictions:
    12 
    13   1. The origin of this software must not be misrepresented; you must not
    14      claim that you wrote the original software. If you use this software
    15      in a product, an acknowledgment in the product documentation would be
    16      appreciated but is not required.
    17   2. Altered source versions must be plainly marked as such, and must not be
    18      misrepresented as being the original software.
    19   3. This notice may not be removed or altered from any source distribution.
    20 */
    21 #include "../../SDL_internal.h"
    22 
    23 #if SDL_VIDEO_DRIVER_ANDROID
    24 
    25 /* Android SDL video driver implementation */
    26 
    27 #include "SDL_video.h"
    28 #include "../SDL_egl_c.h"
    29 #include "SDL_androidwindow.h"
    30 
    31 #include "SDL_androidvideo.h"
    32 #include "SDL_androidgl.h"
    33 #include "../../core/android/SDL_android.h"
    34 
    35 #include <android/log.h>
    36 
    37 #include <dlfcn.h>
    38 
    39 int
    40 Android_GLES_MakeCurrent(_THIS, SDL_Window * window, SDL_GLContext context)
    41 {
    42     if (window && context) {
    43         return SDL_EGL_MakeCurrent(_this, ((SDL_WindowData *) window->driverdata)->egl_surface, context);
    44     } else {
    45         return SDL_EGL_MakeCurrent(_this, NULL, NULL);
    46     }
    47 }
    48 
    49 SDL_GLContext
    50 Android_GLES_CreateContext(_THIS, SDL_Window * window)
    51 {
    52     SDL_GLContext ret;
    53 
    54     Android_ActivityMutex_Lock_Running();
    55 
    56     ret = SDL_EGL_CreateContext(_this, ((SDL_WindowData *) window->driverdata)->egl_surface);
    57 
    58     SDL_UnlockMutex(Android_ActivityMutex);
    59 
    60     return ret;
    61 }
    62 
    63 int
    64 Android_GLES_SwapWindow(_THIS, SDL_Window * window)
    65 {
    66     int retval;
    67 
    68     SDL_LockMutex(Android_ActivityMutex);
    69 
    70     /* The following two calls existed in the original Java code
    71      * If you happen to have a device that's affected by their removal,
    72      * please report to Bugzilla. -- Gabriel
    73      */
    74 
    75     /*_this->egl_data->eglWaitNative(EGL_CORE_NATIVE_ENGINE);
    76     _this->egl_data->eglWaitGL();*/
    77     retval = SDL_EGL_SwapBuffers(_this, ((SDL_WindowData *) window->driverdata)->egl_surface);
    78 
    79     SDL_UnlockMutex(Android_ActivityMutex);
    80 
    81     return retval;
    82 }
    83 
    84 int
    85 Android_GLES_LoadLibrary(_THIS, const char *path) {
    86     return SDL_EGL_LoadLibrary(_this, path, (NativeDisplayType) 0, 0);
    87 }
    88 
    89 #endif /* SDL_VIDEO_DRIVER_ANDROID */
    90 
    91 /* vi: set ts=4 sw=4 expandtab: */