func (s *screenImpl) NewTexture(size image.Point) (screen.Texture, error) {
w, h := int64(size.X), int64(size.Y)
if w < 0 || maxShmSide < w || h < 0 || maxShmSide < h || maxShmSize < 4*w*h {
return nil, fmt.Errorf("x11driver: invalid texture size %v", size)
}
xm, err := xproto.NewPixmapId(s.xc)
if err != nil {
return nil, fmt.Errorf("x11driver: xproto.NewPixmapId failed: %v", err)
}
xp, err := render.NewPictureId(s.xc)
if err != nil {
return nil, fmt.Errorf("x11driver: xproto.NewPictureId failed: %v", err)
}
t := &textureImpl{
s: s,
size: size,
xm: xm,
xp: xp,
}
xproto.CreatePixmap(s.xc, textureDepth, xm, xproto.Drawable(s.window32), uint16(w), uint16(h))
render.CreatePicture(s.xc, xp, xproto.Drawable(xm), s.pictformat32, 0, nil)
render.SetPictureFilter(s.xc, xp, uint16(len("bilinear")), "bilinear", nil)
return t, nil
}
func (s *screenImpl) NewWindow(opts *screen.NewWindowOptions) (screen.Window, error) {
// TODO: look at opts.
const width, height = 1024, 768
xw, err := xproto.NewWindowId(s.xc)
if err != nil {
return nil, fmt.Errorf("x11driver: xproto.NewWindowId failed: %v", err)
}
xg, err := xproto.NewGcontextId(s.xc)
if err != nil {
return nil, fmt.Errorf("x11driver: xproto.NewGcontextId failed: %v", err)
}
xp, err := render.NewPictureId(s.xc)
if err != nil {
return nil, fmt.Errorf("x11driver: render.NewPictureId failed: %v", err)
}
pictformat := render.Pictformat(0)
switch s.xsi.RootDepth {
default:
return nil, fmt.Errorf("x11driver: unsupported root depth %d", s.xsi.RootDepth)
case 24:
pictformat = s.pictformat24
case 32:
pictformat = s.pictformat32
}
w := &windowImpl{
s: s,
xw: xw,
xg: xg,
xp: xp,
pump: pump.Make(),
xevents: make(chan xgb.Event),
}
s.mu.Lock()
s.windows[xw] = w
s.mu.Unlock()
xproto.CreateWindow(s.xc, s.xsi.RootDepth, xw, s.xsi.Root,
0, 0, width, height, 0,
xproto.WindowClassInputOutput, s.xsi.RootVisual,
xproto.CwEventMask,
[]uint32{0 |
xproto.EventMaskKeyPress |
xproto.EventMaskKeyRelease |
xproto.EventMaskButtonPress |
xproto.EventMaskButtonRelease |
xproto.EventMaskPointerMotion |
xproto.EventMaskExposure |
xproto.EventMaskStructureNotify |
xproto.EventMaskFocusChange,
},
)
s.setProperty(xw, s.atomWMProtocols, s.atomWMDeleteWindow, s.atomWMTakeFocus)
xproto.CreateGC(s.xc, xg, xproto.Drawable(xw), 0, nil)
render.CreatePicture(s.xc, xp, xproto.Drawable(xw), pictformat, 0, nil)
xproto.MapWindow(s.xc, xw)
return w, nil
}