// Texture (https://wiki.libsdl.org/SDL_SetTextureAlphaMod)
func (texture *Texture) SetAlphaMod(alpha uint8) error {
_ret := C.SDL_SetTextureAlphaMod(texture.cptr(), C.Uint8(alpha))
if _ret < 0 {
return GetError()
}
return nil
}
func (t *Texture) SetAlphaMod(a uint8) error {
if C.SDL_SetTextureAlphaMod(t.c, C.Uint8(a)) != 0 {
return getError()
}
return nil
}
//Draws the image at the given coordinates.
func DrawImage(img *Image, destX, destY, srcX, srcY, srcW, srcH int) {
var src, dest C.SDL_Rect
dest.x = C.int(destX)
dest.y = C.int(destY)
dest.w = C.int(img.Width)
dest.h = C.int(img.Height)
src.x = C.int(srcX)
src.y = C.int(srcY)
src.w = C.int(srcW)
src.h = C.int(srcH)
C.SDL_SetTextureAlphaMod(img.surface, 255)
C.SDL_RenderCopy(renderer, img.surface, &src, &dest)
}
func (t *Texture) SetAlpha(_alpha uint8) {
C.SDL_SetTextureAlphaMod(t.Get(), C.Uint8(_alpha))
}
func (t *Texture) SetAlphaMod(alpha uint8) bool {
ret := C.SDL_SetTextureAlphaMod(t.cTexture, C.Uint8(alpha))
return int(ret) == 0
}
func (texture *Texture) SetAlphaMod(alpha uint8) int {
_texture := (*C.SDL_Texture)(unsafe.Pointer(texture))
_alpha := (C.Uint8)(alpha)
return (int)(C.SDL_SetTextureAlphaMod(_texture, _alpha))
}
func (texture *Texture) SetAlphaMod(alpha uint8) int {
return int(C.SDL_SetTextureAlphaMod(texture.cptr(), C.Uint8(alpha)))
}