func newSDL2xScreen(fullScreen bool) *sdl2xScreen {
sdlMode := uint32(sdl.SWSURFACE)
if fullScreen {
application.Logf("%s", "Activate fullscreen mode")
sdlMode = sdl.FULLSCREEN
sdl.ShowCursor(sdl.DISABLE)
}
screenSurface := &sdlSurface{sdl.SetVideoMode(SCREEN_WIDTH*2, SCREEN_HEIGHT*2, 32, sdlMode)}
if screenSurface.surface == nil {
log.Printf("%s", sdl.GetError())
application.Exit()
return nil
}
borderSurface := &sdlSurface{sdl.CreateRGBSurface(sdl.SWSURFACE, SCREEN_WIDTH*2, SCREEN_HEIGHT*2, 32, 0, 0, 0, 0)}
if borderSurface.surface == nil {
log.Printf("%s", sdl.GetError())
application.Exit()
return nil
}
displaySurface := &sdlSurface{sdl.CreateRGBSurface(sdl.SWSURFACE, DISPLAY_WIDTH*2, DISPLAY_HEIGHT*2, 32, 0, 0, 0, 0)}
if displaySurface.surface == nil {
log.Printf("%s", sdl.GetError())
application.Exit()
return nil
}
return &sdl2xScreen{screenSurface, borderSurface, displaySurface}
}
// Initialization boilerplate
func initialize(config *configuration) *renderer {
var bgImage, appSurface *sdl.Surface
if sdl.Init(sdl.INIT_VIDEO) != 0 {
panic(sdl.GetError())
}
if ttf.Init() != 0 {
panic(sdl.GetError())
}
font := ttf.OpenFont(flag.Arg(0), 12)
if font == nil {
panic(sdl.GetError())
}
sdl.EnableUNICODE(1)
if config.fullscreen {
flags := sdl.FULLSCREEN
appSurface = sdl.SetVideoMode(640, 480, 32, uint32(flags))
sdl.ShowCursor(sdl.DISABLE)
} else {
appSurface = sdl.SetVideoMode(640, 480, 32, 0)
}
if config.bgImage != "" {
bgImage = sdl.Load(config.bgImage)
}
sdlrenderer = clingon.NewSDLRenderer(sdl.CreateRGBSurface(sdl.SRCALPHA, int(config.consoleW), int(config.consoleH), 32, 0, 0, 0, 0), font)
sdlrenderer.GetSurface().SetAlpha(sdl.SRCALPHA, 0xaa)
return &renderer{
config: config,
appSurface: appSurface,
sdlRenderer: sdlrenderer,
bgImageSurface: bgImage,
}
}