func getListOfCodecs() (map[string]encoding.Integer, error) {
codecs := make(map[string]encoding.Integer, 10)
for _, codec := range codecsParam {
switch codec {
case "bp32":
codecs["bp32"] = composition.New(bp32.New(), variablebyte.New())
case "fastpfor":
codecs["fastpfor"] = composition.New(fastpfor.New(), variablebyte.New())
case "variablebyte":
codecs["variablebyte"] = variablebyte.New()
case "deltabp32":
codecs["delta bp32"] = composition.New(dbp32.New(), dvb.New())
case "deltafastpfor":
codecs["delta fastpfor"] = composition.New(dfastpfor.New(), dvb.New())
case "deltavariablebyte":
codecs["delta variablebyte"] = dvb.New()
case "zigzagbp32":
codecs["zigzag bp32"] = composition.New(zbp32.New(), dvb.New())
case "zigzagfastpfor":
codecs["zigzag fastpfor"] = composition.New(zfastpfor.New(), dvb.New())
}
}
if len(codecs) < 1 {
return nil, fmt.Errorf("benchmark/getListOfCodecs: No codecs defined")
}
return codecs, nil
}
// Compress compresses in[]int32 to out[]int32
func Compress32(in []int32) (out []int32, err error) {
out = make([]int32, len(in)*2)
inpos := cursor.New()
outpos := cursor.New()
if err = bp32.New().Compress(in, inpos, len(in), out, outpos); err != nil {
return nil, err
}
return out[:outpos.Get()], nil
}
// Uncompress uncompresses in[]int32 to out[]int32
func Uncompress32(in []int32, buffer []int32) (out []int32, err error) {
out = buffer
inpos := cursor.New()
outpos := cursor.New()
if err = bp32.New().Uncompress(in, inpos, len(in), out, outpos); err != nil {
return nil, err
}
return out[:outpos.Get()], nil
}
func TestDeltaBP32andDeltaVariableByte(t *testing.T) {
sizes := []int{100, 100 * 10, 100 * 100, 100 * 1000, 100 * 10000}
benchtools.TestCodec(New(dbp32.New(), dvb.New()), data, sizes)
}