// CreateWindowAndRenderer (https://wiki.libsdl.org/SDL_CreateWindowAndRenderer)
func CreateWindowAndRenderer(w, h int, flags uint32) (*Window, *Renderer, error) {
var window *C.SDL_Window
var renderer *C.SDL_Renderer
ret := C.SDL_CreateWindowAndRenderer(C.int(w), C.int(h), C.Uint32(flags), &window, &renderer)
if ret == -1 {
return nil, nil, GetError()
}
return (*Window)(unsafe.Pointer(window)), (*Renderer)(unsafe.Pointer(renderer)), nil
}
func CreateWindowAndRenderer(h, w int, flags uint32) (*Window, *Renderer) {
var win Window
var rend Renderer
C.SDL_CreateWindowAndRenderer(C.int(h), C.int(w), C.Uint32(flags),
&win.cWindow, &rend.cRenderer)
return &win, &rend
}
func CreateWindowAndRenderer(w, h int, flags WindowFlags) (*Window, *Renderer, error) {
var win *C.SDL_Window
var r *C.SDL_Renderer
if C.SDL_CreateWindowAndRenderer(C.int(w), C.int(h), C.Uint32(flags), &win, &r) != 0 {
return nil, nil, getError()
}
return &Window{win}, &Renderer{r}, nil
}
func CreateWindowAndRenderer(h, w int, flags uint32) (*Window, *Renderer) {
var win Window
var rend Renderer
GlobalMutex.Lock()
defer GlobalMutex.Unlock()
C.SDL_CreateWindowAndRenderer(C.int(h), C.int(w), C.Uint32(flags),
&win.cWindow, &rend.cRenderer)
return &win, &rend
}
// New returns a newly created Screen
func New(width int, height int, fullscreen bool, FSAA int, name string) *Screen {
window := &Screen{}
C.SDL_Init(C.SDL_INIT_VIDEO)
C.setGlContextAttributes()
C.SDL_GL_SetAttribute(C.SDL_GL_DOUBLEBUFFER, 1)
// Force hardware accel
C.SDL_GL_SetAttribute(C.SDL_GL_ACCELERATED_VISUAL, 1)
if FSAA > 0 {
// FSAA (Fullscreen antialiasing)
C.SDL_GL_SetAttribute(C.SDL_GL_MULTISAMPLEBUFFERS, 1)
C.SDL_GL_SetAttribute(C.SDL_GL_MULTISAMPLESAMPLES, C.int(FSAA)) // 2, 4, 8
}
flags := C.SDL_WINDOW_OPENGL | C.SDL_RENDERER_ACCELERATED
if fullscreen {
flags = flags | C.SDL_WINDOW_FULLSCREEN
}
C.SDL_CreateWindowAndRenderer(C.int(width), C.int(height), C.Uint32(flags), &window.sdlWindow, &window.renderer)
C.SDL_SetWindowTitle(window.sdlWindow, C.CString(name))
C.SDL_GL_CreateContext(window.sdlWindow)
if err := gl.Init(); err != nil {
panic(err)
}
version := gl.GoStr(gl.GetString(gl.VERSION))
fmt.Println("OpenGL version", version)
// Configure global settings
gl.Enable(gl.BLEND)
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
gl.ClearColor(0.0, 0.0, 0.0, 1.0)
gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT)
window.Width = width
window.Height = height
window.name = name
window.shouldClose = false
C.SDL_GL_SwapWindow(window.sdlWindow)
window.startTime = time.Now()
window.frameTime = time.Now()
C.SDL_GL_SetSwapInterval(1)
window.vsync = true
return window
}
func CreateWindowAndRenderer(w, h int, flags uint32) (*Window, *Renderer) {
var window *C.SDL_Window
var renderer *C.SDL_Renderer
C.SDL_CreateWindowAndRenderer(C.int(w), C.int(h), C.Uint32(flags), &window, &renderer)
return (*Window)(unsafe.Pointer(window)), (*Renderer)(unsafe.Pointer(renderer))
}