C++ (Cpp) enveEmuAlterSustain示例

示例#1

文件： sidenvel.cpp 项目： Dagarman/mame

static inline uint16_t enveEmuDecay(sidOperator* pVoice)
{
#ifdef SID_FPUENVE
	pVoice->enveStep = (uint16_t)pVoice->fenveStep;
#endif
#if defined(DIRECT_FIXPOINT) && !defined(SID_FPUENVE)
	if ( pVoice->enveStep.w[HI] >= releaseTabLen )
#else
	if ( pVoice->enveStep >= releaseTabLen )
#endif
	{
		pVoice->enveVol = pVoice->enveSusVol;
		return enveEmuAlterSustain(pVoice);  /* start sustain */
	}
	else
	{
#if defined(DIRECT_FIXPOINT) && !defined(SID_FPUENVE)
		pVoice->enveVol = releaseTab[pVoice->enveStep.w[HI]];
#else
		pVoice->enveVol = releaseTab[pVoice->enveStep];
#endif
		/* Will be controlled from sidEmuSet2(). */
		if ( pVoice->enveVol <= pVoice->enveSusVol )
		{
			pVoice->enveVol = pVoice->enveSusVol;
			return enveEmuAlterSustain(pVoice);  /* start sustain */
		}
		else
		{
			enveEmuEnveAdvance(pVoice);
			return masterAmplModTable[ pVoice->sid->masterVolumeAmplIndex + pVoice->enveVol ];
		}
	}
}

示例#2

文件： envelope.cpp 项目： Kinglions/modizer

inline uword enveEmuSustainDecay(struct sidOperator* pVoice)
{
#ifdef SID_FPUENVE
	pVoice->enveStep = (uword)pVoice->fenveStep;
#endif
#if defined(DIRECT_FIXPOINT) && !defined(SID_FPUENVE)
	if ( pVoice->enveStep.w[HI] >= releaseTabLen )
#else
	if ( pVoice->enveStep >= releaseTabLen )
#endif
	{
		pVoice->enveVol = releaseTab[releaseTabLen-1];
		return enveEmuAlterSustain(pVoice);
	}
	else
	{
#if defined(DIRECT_FIXPOINT) && !defined(SID_FPUENVE)
		pVoice->enveVol = releaseTab[pVoice->enveStep.w[HI]];
#else
		pVoice->enveVol = releaseTab[pVoice->enveStep];
#endif
		// Will be controlled from sidEmuSet2().
		if ( pVoice->enveVol <= pVoice->enveSusVol )
		{
			pVoice->enveVol = pVoice->enveSusVol;
			return enveEmuAlterSustain(pVoice);
		}
		else
		{
			enveEmuEnveAdvance(pVoice);
			return masterAmplModTable[ masterVolumeAmplIndex + pVoice->enveVol ];
		}
	}
}