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Compile out unused fields in DSP TChannel definition

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This commit is contained in:
PJB3005
2026-07-25 15:49:49 +02:00
parent ad80933ccf
commit 0c0bc7c9e2
2 changed files with 23 additions and 0 deletions
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libs/JSystem/include/JSystem/JAudio2/JASDSPInterface.h
+17
View File
@@ -109,7 +109,9 @@ namespace JASDsp {
* Pitch shift via changing playback speed.
*/
/* 0x004 */ u16 mPitch;
#if !TARGET_PC
/* 0x006 */ short _unused1;
#endif
/**
* Set to 1 when playback starts, cleared by DSP later,
@@ -118,19 +120,27 @@ namespace JASDsp {
* (Corroborated by fields JASAramStream checks never being cleared explicitly by CPU.)
*/
/* 0x008 */ u16 mResetFlag;
#if !TARGET_PC
/* 0x00A */ u8 _unused2[0x00C - 0x00A];
#endif
/* 0x00C */ s16 mPauseFlag;
#if !TARGET_PC
/* 0x00E */ short _unused3;
#endif
/* 0x010 */ OutputChannelConfig mOutputChannels[DSP_OUTPUT_CHANNELS];
#if !TARGET_PC
/* 0x040 */ u8 _unused4[0x050 - 0x040];
#endif
/* 0x050 */ u16 mAutoMixerPanDolby; // pan is upper 8 bits, dolby lower 8.
/* 0x052 */ u16 mAutoMixerFxMix;
/* 0x054 */ u16 mAutoMixerInitVolume;
/* 0x056 */ u16 mAutoMixerVolume;
/* 0x058 */ u16 mAutoMixerBeenSet;
#if !TARGET_PC
/* 0x05A */ u8 _unused5[0x060 - 0x05A];
/* 0x060 */ short field_0x060; // Only cleared to zero, presumed used by DSP.
/* 0x062 */ u8 _unused6[0x064 - 0x062];
#endif
/**
* Samples per ADPCM frame for ADPCM audio. Seems just set to 1 for PCM formats.
@@ -139,7 +149,9 @@ namespace JASDsp {
/* 0x064 */ u16 mSamplesPerBlock;
/* 0x066 */ short field_0x066; // Only cleared to zero, presumed used by DSP.
/* 0x068 */ u32 mSamplePosition; // Only ever initialized by code, name is guess.
#if !TARGET_PC
/* 0x06C */ u8 _unused7[0x070 - 0x06C];
#endif
/**
* Current audio read position in ARAM. Updated by DSP.
@@ -151,11 +163,13 @@ namespace JASDsp {
* Gets written by DSP, but also CPU.
*/
/* 0x074 */ u32 mSamplesLeft; // Never directly cleared to zero. Seems sus. Cleared by DSP?
#if !TARGET_PC
/* 0x078 */ short field_0x078[4]; // Only cleared to zero, presumed used by DSP.
/* 0x080 */ short field_0x080[20]; // Only cleared to zero, presumed used by DSP.
/* 0x0A8 */ short field_0x0a8[4]; // Only cleared to zero, presumed used by DSP.
/* 0x0B0 */ u16 field_0x0b0[16]; // Only cleared to zero, presumed used by DSP.
/* 0x0D0 */ u8 _unused8[0x100 - 0x0D0];
#endif
/* 0x100 */ u16 mBytesPerBlock;
/* 0x102 */ u16 mLoopFlag;
@@ -176,8 +190,11 @@ namespace JASDsp {
/* 0x118 */ u32 mWaveAramAddress;
/* 0x11C */ int mSampleCount;
/* 0x120 */ s16 fir_filter_params[8];
#if !TARGET_PC
/* 0x130 */ u8 _unused9[0x148 - 0x130];
#endif
/* 0x148 */ s16 iir_filter_params[8];
#if !TARGET_PC
/* 0x158 */ u8 _unused10[0x180 - 0x158];
#endif
libs/JSystem/src/JAudio2/JASDSPInterface.cpp
+6
View File
@@ -523,9 +523,12 @@ void JASDsp::TChannel::init() {
void JASDsp::TChannel::playStart() {
JUT_ASSERT(508, dspMutex);
field_0x10c = 0;
#if !TARGET_PC
field_0x060 = 0;
#endif
mResetFlag = 1;
field_0x066 = 0;
#if !TARGET_PC
int i;
for (i = 0; i < 4; i++) {
field_0x078[i] = 0;
@@ -534,6 +537,7 @@ void JASDsp::TChannel::playStart() {
for (i = 0; i < 20; i++) {
field_0x080[i] = 0;
}
#endif
mIsActive = 1;
}
@@ -601,9 +605,11 @@ void JASDsp::TChannel::setWaveInfo(JASWaveInfo const& waveInfo, u32 aramAddress,
break;
}
}
#if !TARGET_PC
for (i = 0; i < 16; i++) {
field_0x0b0[i] = 0;
}
#endif
}
}