Golang SDL_SetTextureAlphaMod Examples

Example #1

File: render.go Project: emlai/go-sdl2

// 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
}

Example #2

File: render.go Project: willemvds/sdl

func (t *Texture) SetAlphaMod(a uint8) error {
	if C.SDL_SetTextureAlphaMod(t.c, C.Uint8(a)) != 0 {
		return getError()
	}

	return nil
}

Example #3

File: sdl.go Project: gtalent/starfish

//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)
}

Example #4

File: renderer.go Project: gasperko/pokemon-universe

func (t *Texture) SetAlpha(_alpha uint8) {
	C.SDL_SetTextureAlphaMod(t.Get(), C.Uint8(_alpha))
}

Example #5

File: render.go Project: jbondeson/Go-SDL2

func (t *Texture) SetAlphaMod(alpha uint8) bool {
	ret := C.SDL_SetTextureAlphaMod(t.cTexture, C.Uint8(alpha))
	return int(ret) == 0
}

Example #6

File: sdl_render.go Project: kyleconroy/golds

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))
}

Example #7

File: render.go Project: JalfResi/go-sdl2

func (texture *Texture) SetAlphaMod(alpha uint8) int {
	return int(C.SDL_SetTextureAlphaMod(texture.cptr(), C.Uint8(alpha)))
}