func main() {
var window *sdl.Window
var renderer *sdl.Renderer
var texture *sdl.Texture
var src, dst sdl.Rect
var err error
window, err = sdl.CreateWindow(winTitle, sdl.WINDOWPOS_UNDEFINED, sdl.WINDOWPOS_UNDEFINED,
winWidth, winHeight, sdl.WINDOW_SHOWN)
if err != nil {
fmt.Fprintf(os.Stderr, "Failed to create window: %s\n", err)
os.Exit(1)
}
defer window.Destroy()
renderer, err = sdl.CreateRenderer(window, -1, sdl.RENDERER_ACCELERATED)
if err != nil {
fmt.Fprintf(os.Stderr, "Failed to create renderer: %s\n", err)
os.Exit(2)
}
defer renderer.Destroy()
image, err := img.Load(imageName)
if err != nil {
fmt.Fprintf(os.Stderr, "Failed to load PNG: %s\n", err)
os.Exit(3)
}
defer image.Free()
texture, err = renderer.CreateTextureFromSurface(image)
if err != nil {
fmt.Fprintf(os.Stderr, "Failed to create texture: %s\n", err)
os.Exit(4)
}
defer texture.Destroy()
src = sdl.Rect{0, 0, 512, 512}
dst = sdl.Rect{100, 50, 512, 512}
renderer.Clear()
renderer.SetDrawColor(255, 0, 0, 255)
renderer.FillRect(&sdl.Rect{0, 0, int32(winWidth), int32(winHeight)})
renderer.Copy(texture, &src, &dst)
renderer.Present()
sdl.Delay(2000)
}
