// Color returns the current drawing color.
func (c Canvas) color() color.Color {
var r, g, b, a C.Uint8
if C.SDL_GetRenderDrawColor(c.win.rend, &r, &g, &b, &a) < 0 {
panic(sdlError())
}
return color.NRGBA{uint8(r), uint8(g), uint8(b), uint8(a)}
}
func (renderer *Renderer) GetDrawColor(r, g, b, a *uint8) int {
_renderer := (*C.SDL_Renderer)(unsafe.Pointer(renderer))
_r := (*C.Uint8)(unsafe.Pointer(r))
_g := (*C.Uint8)(unsafe.Pointer(g))
_b := (*C.Uint8)(unsafe.Pointer(b))
_a := (*C.Uint8)(unsafe.Pointer(a))
return (int)(C.SDL_GetRenderDrawColor(_renderer, _r, _g, _b, _a))
}
func (renderer *Renderer) GetDrawColor() (r, g, b, a uint8, status int) {
_r := (*C.Uint8)(unsafe.Pointer(&r))
_g := (*C.Uint8)(unsafe.Pointer(&g))
_b := (*C.Uint8)(unsafe.Pointer(&b))
_a := (*C.Uint8)(unsafe.Pointer(&a))
status = int(C.SDL_GetRenderDrawColor(renderer.cptr(), _r, _g, _b, _a))
return
}
func (r *Renderer) GetDrawColor() (red, g, b, a uint8, err error) {
var cr, cg, cb, ca C.Uint8
if C.SDL_GetRenderDrawColor(r.c, &cr, &cg, &cb, &ca) != 0 {
return 0, 0, 0, 0, getError()
}
return uint8(cr), uint8(cg), uint8(cb), uint8(ca), nil
}
func (r *Renderer) GetDrawColor() Color {
cr := C.Uint8(0)
cg := C.Uint8(0)
cb := C.Uint8(0)
ca := C.Uint8(0)
ret := C.SDL_GetRenderDrawColor(r.cRenderer, &cr, &cg, &cb, &ca)
if int(ret) == 0 {
return Color{uint8(cr), uint8(cg), uint8(cb), uint8(ca)}
}
return Color{0, 0, 0, 0}
}
// Renderer (https://wiki.libsdl.org/SDL_GetRenderDrawColor)
func (renderer *Renderer) GetDrawColor() (r, g, b, a uint8, err error) {
_r := (*C.Uint8)(unsafe.Pointer(&r))
_g := (*C.Uint8)(unsafe.Pointer(&g))
_b := (*C.Uint8)(unsafe.Pointer(&b))
_a := (*C.Uint8)(unsafe.Pointer(&a))
_ret := C.SDL_GetRenderDrawColor(renderer.cptr(), _r, _g, _b, _a)
if _ret < 0 {
err = GetError()
return r, g, b, a, err
}
return r, g, b, a, nil
}