Golang C.TTF_RenderText_Solid类(方法)实例源码

// Renders Latin-1 text in the specified color and returns an SDL surface.  Solid
// rendering is quick, although not as smooth as the other rendering types.
func RenderText_Solid(font *Font, text string, color sdl.Color) *sdl.Surface {
	ctext := C.CString(text)
	ccol := C.SDL_Color{C.Uint8(color.R), C.Uint8(color.G), C.Uint8(color.B), C.Uint8(color.Unused)}
	surface := C.TTF_RenderText_Solid(font.cfont, ctext, ccol)
	C.free(unsafe.Pointer(ctext))
	return (*sdl.Surface)(unsafe.Pointer(surface))
}

func (f *Font) RenderText_Solid(text string, color sdl.Color) *sdl.Surface {
	_text := C.CString(text)
	defer C.free(unsafe.Pointer(_text))
	_c := C.SDL_Color{C.Uint8(color.R), C.Uint8(color.G), C.Uint8(color.B), C.Uint8(color.A)}
	surface := (*sdl.Surface)(unsafe.Pointer(C.TTF_RenderText_Solid(f.f, _text, _c)))
	return surface
}

func (f *Font) RenderTextSolid(text string, fg sdl.Color) (*sdl.Surface, error) {
	ctext := C.CString(text)
	ccolor := C.SDL_Color{C.Uint8(fg.R), C.Uint8(fg.G), C.Uint8(fg.B), C.Uint8(255)}
	s := C.TTF_RenderText_Solid(f.c, ctext, ccolor)
	if s == nil {
		return nil, getError()
	}
	return (*sdl.Surface)(unsafe.Pointer(s)), nil
}

// Renders Latin-1 text in the specified color and returns an SDL surface.  Solid
// rendering is quick, although not as smooth as the other rendering types.
func RenderText_Solid(font *Font, text string, color sdl.Color) *sdl.Surface {
	sdl.GlobalMutex.Lock() // Because 'C.TTF_Render*' uses 'C.SDL_CreateRGBSurface'
	font.mutex.Lock()      // Use a write lock, because 'C.TTF_Render*' may update font's internal caches

	ctext := C.CString(text)
	ccol := C.SDL_Color{C.Uint8(color.R), C.Uint8(color.G), C.Uint8(color.B), C.Uint8(color.Unused)}
	surface := C.TTF_RenderText_Solid(font.cfont, ctext, ccol)
	C.free(unsafe.Pointer(ctext))

	font.mutex.Unlock()
	sdl.GlobalMutex.Unlock()

	return wrap(surface)
}