src/video/raspberry/SDL_rpiopengles.h
author Ryan C. Gordon <icculus@icculus.org>
Sat, 02 Sep 2017 19:35:32 -0400
changeset 11444 38f181f81476
parent 11382 2c50e79b19e0
child 11811 5d94cb6b24d3
permissions -rw-r--r--
video: Let video targets optionally decide their default OpenGL configs.

This is necessary because the Raspberry Pi is a strange beast, that believes
it has OpenGL support (through glX?) but generally has GLES2 support.

So when using the raspberry video target, we need to force this to default
to a GLES2 context, or by default SDL_CreateWindow() will fail, deep down
when it tries to load the proper GL library.

Fixes testsprite2 (and basically everything else that wasn't testgles2) when
run on a Raspberry Pi without a X server.

Please note that other targets might also need this filled in, the Raspberry
Pi is just the most prominent and readily-available System-On-A-Chip style
thing on my desk. :)
     1 /*
     2   Simple DirectMedia Layer
     3   Copyright (C) 1997-2017 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_rpiopengles_h_
    24 #define SDL_rpiopengles_h_
    25 
    26 #if SDL_VIDEO_DRIVER_RPI && SDL_VIDEO_OPENGL_EGL
    27 
    28 #include "../SDL_sysvideo.h"
    29 #include "../SDL_egl_c.h"
    30 
    31 /* OpenGLES functions */
    32 #define RPI_GLES_GetAttribute SDL_EGL_GetAttribute
    33 #define RPI_GLES_GetProcAddress SDL_EGL_GetProcAddress
    34 #define RPI_GLES_UnloadLibrary SDL_EGL_UnloadLibrary
    35 #define RPI_GLES_SetSwapInterval SDL_EGL_SetSwapInterval
    36 #define RPI_GLES_GetSwapInterval SDL_EGL_GetSwapInterval
    37 #define RPI_GLES_DeleteContext SDL_EGL_DeleteContext
    38 
    39 extern int RPI_GLES_LoadLibrary(_THIS, const char *path);
    40 extern SDL_GLContext RPI_GLES_CreateContext(_THIS, SDL_Window * window);
    41 extern int RPI_GLES_SwapWindow(_THIS, SDL_Window * window);
    42 extern int RPI_GLES_MakeCurrent(_THIS, SDL_Window * window, SDL_GLContext context);
    43 extern void RPI_GLES_DefaultProfileConfig(_THIS, int *mask, int *major, int *minor);
    44 
    45 #endif /* SDL_VIDEO_DRIVER_RPI && SDL_VIDEO_OPENGL_EGL */
    46 
    47 #endif /* SDL_rpiopengles_h_ */
    48 
    49 /* vi: set ts=4 sw=4 expandtab: */