src/video/emscripten/SDL_emscriptenopengles.h
author Charlie Birks <charlie@daftgames.net>
Tue, 29 Jan 2019 12:19:32 +0000
changeset 12579 8dc4e45fbe2b
parent 12503 806492103856
permissions -rw-r--r--
Emscripten: remove GLES_DeleteContext implementation
It was calling glClear without a context. The issue it was trying to
solve was actually that after destroying a window and creating a new one
, the contents of the old window were preserved. This no longer happens
since we resize the window to nothing on destroy.
     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 #ifndef SDL_emscriptenopengles_h_
    24 #define SDL_emscriptenopengles_h_
    25 
    26 #if SDL_VIDEO_DRIVER_EMSCRIPTEN && SDL_VIDEO_OPENGL_EGL
    27 
    28 #include "../SDL_sysvideo.h"
    29 #include "../SDL_egl_c.h"
    30 
    31 /* OpenGLES functions */
    32 #define Emscripten_GLES_GetAttribute SDL_EGL_GetAttribute
    33 #define Emscripten_GLES_GetProcAddress SDL_EGL_GetProcAddress
    34 #define Emscripten_GLES_UnloadLibrary SDL_EGL_UnloadLibrary
    35 #define Emscripten_GLES_SetSwapInterval SDL_EGL_SetSwapInterval
    36 #define Emscripten_GLES_GetSwapInterval SDL_EGL_GetSwapInterval
    37 #define Emscripten_GLES_DeleteContext SDL_EGL_DeleteContext
    38 
    39 extern int Emscripten_GLES_LoadLibrary(_THIS, const char *path);
    40 extern SDL_GLContext Emscripten_GLES_CreateContext(_THIS, SDL_Window * window);
    41 extern int Emscripten_GLES_SwapWindow(_THIS, SDL_Window * window);
    42 extern int Emscripten_GLES_MakeCurrent(_THIS, SDL_Window * window, SDL_GLContext context);
    43 extern void Emscripten_GLES_GetDrawableSize(_THIS, SDL_Window * window, int * w, int * h);
    44 
    45 #endif /* SDL_VIDEO_DRIVER_EMSCRIPTEN && SDL_VIDEO_OPENGL_EGL */
    46 
    47 #endif /* SDL_emscriptenopengles_h_ */
    48 
    49 /* vi: set ts=4 sw=4 expandtab: */