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Upgrading the normal sound hook for games like CS:GO

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This commit is contained in:
Anthony 2015-01-20 15:08:57 -08:00
parent ff27484527
commit cddae6f456
2 changed files with 100 additions and 3 deletions
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97
extensions/sdktools/vsound.cpp
View File

@ -283,6 +283,57 @@ void SoundHooks::OnEmitAmbientSound(int entindex, const Vector &pos, const char
}
}
#if SOURCE_ENGINE >= SE_PORTAL2
// This should probably be moved to the gamedata
#define SOUND_ENTRY_HASH_SEED 0x444F5441
uint32 GenerateSoundEntryHash(char const *pSoundEntry)
{
// First we need to convert the sound entry to lowercase before we calculate the hash
int nSoundEntryLength = strlen(pSoundEntry);
char *pSoundEntryLowerCase = (char *)stackalloc(nSoundEntryLength + 1);
for (int nIndex = 0; nIndex < nSoundEntryLength; nIndex++)
pSoundEntryLowerCase[nIndex] = tolower(pSoundEntry[nIndex]);
// Second we need to calculate the hash using the algorithm reconstructed from CS:GO
const uint32 nMagicNumber = 0x5bd1e995;
uint32 nSoundHash = SOUND_ENTRY_HASH_SEED ^ nSoundEntryLength;
unsigned char *pData = (unsigned char *)pSoundEntryLowerCase;
while (nSoundEntryLength >= 4)
{
uint32 nLittleDWord = LittleDWord(*(uint32 *)pData);
nLittleDWord *= nMagicNumber;
nLittleDWord ^= nLittleDWord >> 24;
nLittleDWord *= nMagicNumber;
nSoundHash *= nMagicNumber;
nSoundHash ^= nLittleDWord;
pData += 4;
nSoundEntryLength -= 4;
}
switch (nSoundEntryLength)
{
case 3: nSoundHash ^= pData[2] << 16;
case 2: nSoundHash ^= pData[1] << 8;
case 1: nSoundHash ^= pData[0];
nSoundHash *= nMagicNumber;
};
nSoundHash ^= nSoundHash >> 13;
nSoundHash *= nMagicNumber;
nSoundHash ^= nSoundHash >> 15;
return nSoundHash;
}
#endif
#if SOURCE_ENGINE >= SE_PORTAL2
int SoundHooks::OnEmitSound(IRecipientFilter &filter, int iEntIndex, int iChannel, const char *pSoundEntry, unsigned int nSoundEntryHash, const char *pSample,
float flVolume, soundlevel_t iSoundlevel, int nSeed, int iFlags, int iPitch, const Vector *pOrigin,
@ -306,6 +357,15 @@ void SoundHooks::OnEmitSound(IRecipientFilter &filter, int iEntIndex, int iChann
char buffer[PLATFORM_MAX_PATH];
strcpy(buffer, pSample);
char soundEntry[PLATFORM_MAX_PATH];
#if SOURCE_ENGINE >= SE_PORTAL2
strcpy(soundEntry, pSoundEntry);
#endif
#if SOURCE_ENGINE < SE_PORTAL2
int nSeed = 0;
#endif
for (iter=m_NormalFuncs.begin(); iter!=m_NormalFuncs.end(); iter++)
{
int players[SM_MAXPLAYERS], size;
@ -321,6 +381,8 @@ void SoundHooks::OnEmitSound(IRecipientFilter &filter, int iEntIndex, int iChann
pFunc->PushCellByRef(reinterpret_cast<cell_t *>(&iSoundlevel));
pFunc->PushCellByRef(&iPitch);
pFunc->PushCellByRef(&iFlags);
pFunc->PushStringEx(soundEntry, sizeof(soundEntry), SM_PARAM_STRING_COPY, SM_PARAM_COPYBACK);
pFunc->PushCellByRef(&nSeed);
g_InSoundHook = true;
pFunc->Execute(&res);
g_InSoundHook = false;
@ -360,6 +422,16 @@ void SoundHooks::OnEmitSound(IRecipientFilter &filter, int iEntIndex, int iChann
#endif
}
#if SOURCE_ENGINE >= SE_PORTAL2
if (strcmp(pSoundEntry, soundEntry) != 0 || strcmp(pSample, buffer) != 0)
{
if (strcmp(soundEntry, buffer) == 0)
nSoundEntryHash = -1;
else if (strcmp(soundEntry, "") != 0)
nSoundEntryHash = GenerateSoundEntryHash(soundEntry);
}
#endif
CellRecipientFilter crf;
crf.Initialize(players, size);
#if SOURCE_ENGINE >= SE_PORTAL2
@ -368,7 +440,7 @@ void SoundHooks::OnEmitSound(IRecipientFilter &filter, int iEntIndex, int iChann
-1,
static_cast<int (IEngineSound::*)(IRecipientFilter &, int, int, const char*, unsigned int, const char*, float, soundlevel_t,
int, int, int, const Vector *, const Vector *, CUtlVector<Vector> *, bool, float, int)>(&IEngineSound::EmitSound),
(crf, iEntIndex, iChannel, buffer, -1, buffer, flVolume, iSoundlevel, nSeed, iFlags, iPitch, pOrigin,
(crf, iEntIndex, iChannel, soundEntry, nSoundEntryHash, buffer, flVolume, iSoundlevel, nSeed, iFlags, iPitch, pOrigin,
pDirection, pUtlVecOrigins, bUpdatePositions, soundtime, speakerentity)
);
#elif SOURCE_ENGINE == SE_CSS || SOURCE_ENGINE == SE_HL2DM || SOURCE_ENGINE == SE_DODS || SOURCE_ENGINE == SE_SDK2013 || SOURCE_ENGINE == SE_TF2
@ -421,6 +493,15 @@ void SoundHooks::OnEmitSound2(IRecipientFilter &filter, int iEntIndex, int iChan
char buffer[PLATFORM_MAX_PATH];
strcpy(buffer, pSample);
char soundEntry[PLATFORM_MAX_PATH];
#if SOURCE_ENGINE >= SE_PORTAL2
strcpy(soundEntry, pSoundEntry);
#endif
#if SOURCE_ENGINE < SE_PORTAL2
int nSeed = 0;
#endif
for (iter=m_NormalFuncs.begin(); iter!=m_NormalFuncs.end(); iter++)
{
int players[SM_MAXPLAYERS], size;
@ -436,6 +517,8 @@ void SoundHooks::OnEmitSound2(IRecipientFilter &filter, int iEntIndex, int iChan
pFunc->PushCellByRef(&sndlevel);
pFunc->PushCellByRef(&iPitch);
pFunc->PushCellByRef(&iFlags);
pFunc->PushStringEx(soundEntry, sizeof(soundEntry), SM_PARAM_STRING_COPY, SM_PARAM_COPYBACK);
pFunc->PushCellByRef(&nSeed);
g_InSoundHook = true;
pFunc->Execute(&res);
g_InSoundHook = false;
@ -475,6 +558,16 @@ void SoundHooks::OnEmitSound2(IRecipientFilter &filter, int iEntIndex, int iChan
#endif
}
#if SOURCE_ENGINE >= SE_PORTAL2
if (strcmp(pSoundEntry, soundEntry) != 0 || strcmp(pSample, buffer) != 0)
{
if (strcmp(soundEntry, buffer) == 0)
nSoundEntryHash = -1;
else if (strcmp(soundEntry, "") != 0)
nSoundEntryHash = GenerateSoundEntryHash(soundEntry);
}
#endif
CellRecipientFilter crf;
crf.Initialize(players, size);
#if SOURCE_ENGINE >= SE_PORTAL2
@ -483,7 +576,7 @@ void SoundHooks::OnEmitSound2(IRecipientFilter &filter, int iEntIndex, int iChan
-1,
static_cast<int (IEngineSound::*)(IRecipientFilter &, int, int, const char *, unsigned int, const char *, float, float,
int, int, int, const Vector *, const Vector *, CUtlVector<Vector> *, bool, float, int)>(&IEngineSound::EmitSound),
(crf, iEntIndex, iChannel, buffer, -1, buffer, flVolume, SNDLVL_TO_ATTN(static_cast<soundlevel_t>(sndlevel)),
(crf, iEntIndex, iChannel, soundEntry, nSoundEntryHash, buffer, flVolume, SNDLVL_TO_ATTN(static_cast<soundlevel_t>(sndlevel)),
nSeed, iFlags, iPitch, pOrigin, pDirection, pUtlVecOrigins, bUpdatePositions, soundtime, speakerentity)
);
#elif SOURCE_ENGINE == SE_CSS || SOURCE_ENGINE == SE_HL2DM || SOURCE_ENGINE == SE_DODS || SOURCE_ENGINE == SE_SDK2013 || SOURCE_ENGINE == SE_TF2

6
plugins/include/sdktools_sound.inc
View File

@ -307,6 +307,8 @@ typedef AmbientSHook = function Action (
* @param level Sound level.
* @param pitch Sound pitch.
* @param flags Sound flags.
* @param soundEntry Game sound entry name. (Used in engines newer than Portal 2)
* @param seed Sound seed. (Used in engines newer than Portal 2)
* @return Plugin_Continue to allow the sound to be played, Plugin_Stop to block it,
* Plugin_Changed when any parameter has been modified.
*/
@ -319,7 +321,9 @@ typedef NormalSHook = function Action (
float &volume,
int &level,
int &pitch,
int &flags
int &flags,
char soundEntry[PLATFORM_MAX_PATH],
int &seed
);
/**