Example #1
0
func newInnerCBuffer(size int, dontResize ...bool) *innerCBuffer {
	p := new(innerCBuffer)
	if size > 0 {
		p.cptr = C.webpMalloc(C.size_t(size))
		p.data = (*[1 << 30]byte)(p.cptr)[0:size:size]
	}
	if len(dontResize) > 0 {
		p.dontResize = dontResize[0]
	}
	return p
}
Example #2
0
func (p *innerCBuffer) Resize(size int) error {
	if size < 0 {
		return errors.New("webp: cBuffer.Resize, bad size!")
	}
	if p.dontResize {
		return errors.New("webp: cBuffer.Resize, donot resize!")
	}
	if n := len(p.data); n > 0 && n != size {
		C.webpFree(p.cptr)
		p.cptr = nil
		p.data = nil
	}
	p.Close()
	if size > 0 {
		p.cptr = C.webpMalloc(C.size_t(size))
		p.data = (*[1 << 30]byte)(p.cptr)[0:size:size]
	}
	return nil
}