I have compiled my SDL game on the PI. I used apt to install the SDL 1.2 dev package. When I call SDL_SetVideoMode, it fails and this is the SDL error string.
couldn't find matching glx visual
What I have tried so far was changing my bits per pixel parameter from 32 down to 24 and 16 with no change. I have also googled similar problems but it's getting me nowhere. I would like to understand this from first principles. It is the last function call that fails and returns null.
if (SDL_Init(SDL_INIT_EVERYTHING) < 0)
return false;
const SDL_VideoInfo *videoInfo = SDL_GetVideoInfo();
if (!videoInfo) {
fprintf(stderr, "Video query failed: %s\n",
SDL_GetError());
return false;
}
/* the flags to pass to SDL_SetVideoMode */
videoFlags = SDL_OPENGL; /* Enable OpenGL in SDL */
videoFlags |= SDL_GL_DOUBLEBUFFER; /* Enable double buffering */
videoFlags |= SDL_HWPALETTE; /* Store the palette in hardware */
/* This checks to see if surfaces can be stored in memory */
if (videoInfo->hw_available)
videoFlags |= SDL_HWSURFACE;
else
videoFlags |= SDL_SWSURFACE;
widthViewport = videoInfo->current_w;
heightViewport = videoInfo->current_h;
videoFlags |= SDL_FULLSCREEN;
/* This checks if hardware blits can be done */
if (videoInfo->blit_hw)
videoFlags |= SDL_HWACCEL;
/* Sets up OpenGL double buffering */
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
/* get a SDL surface */
TRACE("SDL_SetVideoMode\n");
surface = SDL_SetVideoMode(widthViewport, heightViewport,
32, videoFlags);
/* Verify there is a surface */
if (!surface) {
fprintf(stderr, "Video mode set failed: %s\n", SDL_GetError());
return false;
}
