bool graphics_mode_init(const ScreenSetup &setup, const ColorDepthOption &color_depths)
{
// Log out display information
Size device_size;
if (get_desktop_resolution(&device_size.Width, &device_size.Height) == 0)
Out::FPrint("Device display resolution: %d x %d", device_size.Width, device_size.Height);
else
Out::FPrint("Unable to obtain device resolution");
const char *screen_sz_def_options[kNumScreenDef] = { "explicit", "scaling", "max" };
const bool ignore_device_ratio = setup.Windowed || setup.SizeDef == kScreenDef_Explicit;
const String scale_option = make_scaling_option(setup.GameFrame.ScaleDef, convert_fp_to_scaling(setup.GameFrame.ScaleFactor));
Out::FPrint("Game settings: windowed = %s, screen def: %s, screen size: %d x %d, match device ratio: %s, game scale: %s",
setup.Windowed ? "yes" : "no", screen_sz_def_options[setup.SizeDef], setup.Size.Width, setup.Size.Height,
ignore_device_ratio ? "ignore" : (setup.MatchDeviceRatio ? "yes" : "no"), scale_option.GetCStr());
// Game size is used when defining resolution base and proper scaling;
// Box size specifies minimal wanted screen size for the game (unscaled),
// it is supposed to be be equal or greater than game_size
GameSizeDef game_size;
game_size.Game = game.size;
game_size.Box = game.size;
// Prepare the list of available gfx factories, having the one requested by user at first place
StringV ids;
GetGfxDriverFactoryNames(ids);
StringV::iterator it = std::find(ids.begin(), ids.end(), setup.DriverID);
if (it != ids.end())
std::rotate(ids.begin(), it, ids.end());
else
Out::FPrint("Requested graphics driver '%s' not found, will try existing drivers instead", setup.DriverID.GetCStr());
// Try to create renderer and init gfx mode, choosing one factory at a time
bool result = false;
for (StringV::const_iterator it = ids.begin(); it != ids.end(); ++it)
{
result = create_gfx_driver_and_init_mode(*it, game_size, setup, color_depths, setup.Windowed);
if (result)
break;
graphics_mode_shutdown();
}
// If all possibilities failed, display error message and quit
if (!result)
{
display_gfx_mode_error(game_size.Box, setup.Filter, color_depths.Prime);
return false;
}
// On success: log out new mode params and continue initialization
DisplayMode dm = gfxDriver->GetDisplayMode();
ScreenResolution = dm;
Rect dst_rect = gfxDriver->GetRenderDestination();
Rect filter_rect = filter->GetDestination();
Out::FPrint("Succeeded. Using gfx mode %d x %d (%d-bit) %s\n\t"
"filter dest (%d, %d, %d, %d : %d x %d), render dest (%d, %d, %d, %d : %d x %d)",
dm.Width, dm.Height, dm.ColorDepth, dm.Windowed ? "windowed" : "fullscreen",
filter_rect.Left, filter_rect.Top, filter_rect.Right, filter_rect.Bottom, filter_rect.GetWidth(), filter_rect.GetHeight(),
dst_rect.Left, dst_rect.Top, dst_rect.Right, dst_rect.Bottom, dst_rect.GetWidth(), dst_rect.GetHeight());
return true;
}
