复杂的if else,switch case 条件判断，用表驱动方法如何优化
程序代码：
void UserSet_Effect(User * const me)
{
int TempEffect;
int machine;
const INIT_STRUCT *AmpTab =NULL;
if(me->Night)
TempEffect = eEq_Night;
else
TempEffect = me->Effect;
machine = me->channel_search;
{
if(TempEffect == eEq_Off || TempEffect == eEq_On){
switch (machine)
{
case channel_RL:
if ((me->BitstreamInfo == (BITSTREAM_CH_L | BITSTREAM_CH_R))
|| (me->BitstreamInfo == BITSTREAM_CH_L)
|| (me->BitstreamInfo == BITSTREAM_CH_R)
){
if (me->UserSrc_tbl[me->iSrc] == eAp_AUX_Src){
AmpTab = AmpDrcVaOn_SB_only_aux;
}
else{
AmpTab = AmpDrcVaOn_SB_only_digital;
}
}else
{
if (me->UserSrc_tbl[me->iSrc] == eAp_AUX_Src){
AmpTab = AmpDrcVaOn_SB_only_aux;
}
else{
AmpTab = AmpDrcVaOn_SB_only_digital;
}
}
break;
case channel_RL_Sub:
if ((me->BitstreamInfo == (BITSTREAM_CH_L | BITSTREAM_CH_R))
|| (me->BitstreamInfo == BITSTREAM_CH_L)
|| (me->BitstreamInfo == BITSTREAM_CH_R)
){
if (me->UserSrc_tbl[me->iSrc] == eAp_AUX_Src){
AmpTab = AmpDrcVaOn_SB_sub_aux;
}
else{
AmpTab = AmpDrcVaOn_SB_sub_digital;
}
}else
{
if (me->UserSrc_tbl[me->iSrc] == eAp_AUX_Src){
AmpTab = AmpDrcVaOn_SB_sub_aux;
}
else{
AmpTab = AmpDrcVaOn_SB_sub_digital;
}
}
break;
case channel_RL_RLs:
if ((me->BitstreamInfo == (BITSTREAM_CH_L | BITSTREAM_CH_R))
|| (me->BitstreamInfo == BITSTREAM_CH_L)
|| (me->BitstreamInfo == BITSTREAM_CH_R)
){
if (me->UserSrc_tbl[me->iSrc] == eAp_AUX_Src){
AmpTab = AmpDrcVaOn_SB_surr_aux;
}
else{
AmpTab = AmpDrcVaOn_SB_surr_digital;
}
}else
{
if (me->UserSrc_tbl[me->iSrc] == eAp_AUX_Src){
AmpTab = AmpDrcVaOn_SB_surr_aux;
}
else{
AmpTab = AmpDrcVaOn_SB_surr_digital;
}
}
break;
case channel_RL_RLs_Sub:
if ((me->BitstreamInfo == (BITSTREAM_CH_L | BITSTREAM_CH_R))
|| (me->BitstreamInfo == BITSTREAM_CH_L)
|| (me->BitstreamInfo == BITSTREAM_CH_R)
){
if (me->UserSrc_tbl[me->iSrc] == eAp_AUX_Src){
AmpTab = AmpDrcVaOn_SB_sub_surr_aux;
}
else{
AmpTab = AmpDrcVaOn_SB_sub_surr_digital;
}
}else
{
if (me->UserSrc_tbl[me->iSrc] == eAp_AUX_Src){
AmpTab = AmpDrcVaOn_SB_sub_surr_aux;
}
else{
AmpTab = AmpDrcVaOn_SB_sub_surr_digital;
}
}
break;
}
}else if(TempEffect == eEq_Night){
switch (machine)
{
case channel_RL:
if ((me->BitstreamInfo == (BITSTREAM_CH_L | BITSTREAM_CH_R))
|| (me->BitstreamInfo == BITSTREAM_CH_L)
|| (me->BitstreamInfo == BITSTREAM_CH_R)
){
if (me->UserSrc_tbl[me->iSrc] == eAp_AUX_Src){
AmpTab = AmpDrcNight_SB_only_aux;
}
else{
AmpTab = AmpDrcNight_SB_only_digital;
}
}else
{
if (me->UserSrc_tbl[me->iSrc] == eAp_AUX_Src){
AmpTab = AmpDrcNight_SB_only_aux;
}
else{
AmpTab = AmpDrcNight_SB_only_digital;
}
}
break;
case channel_RL_Sub:
if ((me->BitstreamInfo == (BITSTREAM_CH_L | BITSTREAM_CH_R))
|| (me->BitstreamInfo == BITSTREAM_CH_L)
|| (me->BitstreamInfo == BITSTREAM_CH_R)
){
if (me->UserSrc_tbl[me->iSrc] == eAp_AUX_Src){
AmpTab = AmpDrcNight_SB_sub_aux;
}
else{
AmpTab = AmpDrcNight_SB_sub_digital;
}
}else
{
if (me->UserSrc_tbl[me->iSrc] == eAp_AUX_Src){
AmpTab = AmpDrcNight_SB_sub_aux;
}
else{
AmpTab = AmpDrcNight_SB_sub_digital;
}
}
break;
case channel_RL_RLs:
if ((me->BitstreamInfo == (BITSTREAM_CH_L | BITSTREAM_CH_R))
|| (me->BitstreamInfo == BITSTREAM_CH_L)
|| (me->BitstreamInfo == BITSTREAM_CH_R)
){
if (me->UserSrc_tbl[me->iSrc] == eAp_AUX_Src){
AmpTab = AmpDrcNight_SB_surr_aux;
}
else{
AmpTab = AmpDrcNight_SB_surr_digital;
}
}else
{
if (me->UserSrc_tbl[me->iSrc] == eAp_AUX_Src){
AmpTab = AmpDrcNight_SB_surr_aux;
}
else{
AmpTab = AmpDrcNight_SB_surr_digital;
}
}
break;
case channel_RL_RLs_Sub:
if ((me->BitstreamInfo == (BITSTREAM_CH_L | BITSTREAM_CH_R))
|| (me->BitstreamInfo == BITSTREAM_CH_L)
|| (me->BitstreamInfo == BITSTREAM_CH_R)
){
if (me->UserSrc_tbl[me->iSrc] == eAp_AUX_Src){
AmpTab = AmpDrcNight_SB_sub_surr_aux;
}
else{
AmpTab = AmpDrcNight_SB_sub_surr_digital;
}
}else
{
if (me->UserSrc_tbl[me->iSrc] == eAp_AUX_Src){
AmpTab = AmpDrcNight_SB_sub_surr_aux;
}
else{
AmpTab = AmpDrcNight_SB_sub_surr_digital;
}
}
break;
}
}
if (AmpTab != NULL)
UserAmp(AmpTab, 1);
}
}
[此贴子已经被作者于2022-1-10 09:59编辑过]
