static void sdl2_gfx_set_nonblock_state(void *data, bool toggle)
{
sdl2_video_t *vid = (sdl2_video_t*)data;
vid->video.vsync = !toggle;
sdl_refresh_renderer(vid);
}
static void sdl_refresh_viewport(sdl2_video_t *vid)
{
int win_w, win_h;
settings_t *settings = config_get_ptr();
global_t *global = global_get_ptr();
SDL_GetWindowSize(vid->window, &win_w, &win_h);
vid->vp.x = 0;
vid->vp.y = 0;
vid->vp.width = win_w;
vid->vp.height = win_h;
vid->vp.full_width = win_w;
vid->vp.full_height = win_h;
if (settings->video.scale_integer)
video_viewport_get_scaled_integer(&vid->vp, win_w, win_h, global->system.aspect_ratio,
vid->video.force_aspect);
else if (settings->video.aspect_ratio_idx == ASPECT_RATIO_CUSTOM)
{
const struct video_viewport *custom = &global->console.screen.viewports.custom_vp;
if (custom)
{
vid->vp.x = custom->x;
vid->vp.y = custom->y;
vid->vp.width = custom->width;
vid->vp.height = custom->height;
}
}
else if (vid->video.force_aspect)
{
float delta;
float device_aspect = (float)win_w / win_h;
float desired_aspect = global->system.aspect_ratio;
if (fabsf(device_aspect - desired_aspect) < 0.0001f)
{
/* If the aspect ratios of screen and desired aspect ratio are
* sufficiently equal (floating point stuff), assume they are
* actually equal. */
}
else if (device_aspect > desired_aspect)
{
delta = (desired_aspect / device_aspect - 1.0f) / 2.0f + 0.5f;
vid->vp.x = (int)roundf(win_w * (0.5f - delta));
vid->vp.width = (unsigned)roundf(2.0f * win_w * delta);
}
else
{
delta = (device_aspect / desired_aspect - 1.0f) / 2.0f + 0.5f;
vid->vp.y = (int)roundf(win_h * (0.5f - delta));
vid->vp.height = (unsigned)roundf(2.0f * win_h * delta);
}
}
vid->should_resize = false;
sdl_refresh_renderer(vid);
}
