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Support for subdirectories in the SysEx voices directory (#473)

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* Fix for issue #424 create a build script to check out the correct versions of sub libraries.

* Initial attempt at supporting loading SysEx files from subdirectories which seems to speed up loading significantly.

* Reinstate headerless SysEx file loading after subdirectory change

* Limit nesting of subdirectories to open

* Fix bank number in UI to match the numbers from the bank files.

* Update to fix bank numbers.  Bank file numbers now start from 00001 and show as 1-indexed in the UI.  But internally and via MIDI are still 0-indexed as per MIDI spec.
pull/466/head^2
Kevin 2 years ago committed by GitHub
parent be594f53ef
commit edd22ba8c6
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3 changed files with 142 additions and 76 deletions
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  1. 201
      src/sysexfileloader.cpp
  2. 4
      src/sysexfileloader.h
  3. 13
      submod.sh

201
src/sysexfileloader.cpp
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@ -84,6 +84,7 @@ CSysExFileLoader::~CSysExFileLoader (void)
void CSysExFileLoader::Load (bool bHeaderlessSysExVoices)
{
m_nNumHighestBank = 0;
m_nBanksLoaded = 0;
DIR *pDirectory = opendir (m_DirName.c_str ());
if (!pDirectory)
@ -96,107 +97,155 @@ void CSysExFileLoader::Load (bool bHeaderlessSysExVoices)
dirent *pEntry;
while ((pEntry = readdir (pDirectory)) != nullptr)
{
unsigned nBank;
size_t nLen = strlen (pEntry->d_name);
LoadBank(m_DirName.c_str (), pEntry->d_name, bHeaderlessSysExVoices, 0);
}
LOGDBG ("%u Banks loaded. Highest Bank loaded: #%u", m_nBanksLoaded, m_nNumHighestBank);
if ( nLen < 5 // "[NNNN]N[_name].syx"
|| strcasecmp (&pEntry->d_name[nLen-4], ".syx") != 0
|| sscanf (pEntry->d_name, "%u", &nBank) != 1)
{
LOGWARN ("%s: Invalid filename format", pEntry->d_name);
closedir (pDirectory);
}
continue;
}
void CSysExFileLoader::LoadBank (const char * sDirName, const char * sBankName, bool bHeaderlessSysExVoices, unsigned nSubDirCount)
{
unsigned nBank;
size_t nLen = strlen (sBankName);
if ( nLen < 5 // "[NNNN]N[_name].syx"
|| strcasecmp (&sBankName[nLen-4], ".syx") != 0
|| sscanf (sBankName, "%u", &nBank) != 1)
{
// See if this is a subdirectory...
std::string Dirname (sDirName);
Dirname += "/";
Dirname += sBankName;
if (nBank > MaxVoiceBankID)
DIR *pDirectory = opendir (Dirname.c_str ());
if (pDirectory)
{
LOGWARN ("Bank #%u is not supported", nBank);
if (nSubDirCount >= MaxSubDirs)
{
LOGWARN ("Too many nested subdirectories: %s", sBankName);
return;
}
LOGDBG ("Processing subdirectory %s", sBankName);
continue;
dirent *pEntry;
while ((pEntry = readdir (pDirectory)) != nullptr)
{
LoadBank(Dirname.c_str (), pEntry->d_name, bHeaderlessSysExVoices, nSubDirCount+1);
}
closedir (pDirectory);
}
if (m_pVoiceBank[nBank])
else
{
LOGWARN ("Bank #%u already loaded", nBank);
continue;
LOGWARN ("%s: Invalid filename format", sBankName);
}
m_pVoiceBank[nBank] = new TVoiceBank;
assert (m_pVoiceBank[nBank]);
assert (sizeof(TVoiceBank) == VoiceSysExHdrSize + VoiceSysExSize);
return;
}
// File and UI handling requires banks to be 1..indexed.
// Internally (and via MIDI) we need 0..indexed.
// Any mention of a BankID internally is assumed to be 0..indexed.
unsigned nBankIdx = nBank - 1;
// BankIdx goes from 0 to MaxVoiceBankID inclusive
if (nBankIdx > MaxVoiceBankID)
{
LOGWARN ("Bank #%u is not supported", nBank);
return;
}
std::string Filename (m_DirName);
Filename += "/";
Filename += pEntry->d_name;
if (m_pVoiceBank[nBankIdx])
{
LOGWARN ("Bank #%u already loaded", nBank);
return;
}
FILE *pFile = fopen (Filename.c_str (), "rb");
if (pFile)
m_pVoiceBank[nBankIdx] = new TVoiceBank;
assert (m_pVoiceBank[nBankIdx]);
assert (sizeof(TVoiceBank) == VoiceSysExHdrSize + VoiceSysExSize);
std::string Filename (sDirName);
Filename += "/";
Filename += sBankName;
FILE *pFile = fopen (Filename.c_str (), "rb");
if (pFile)
{
bool bBankLoaded = false;
if ( fread (m_pVoiceBank[nBankIdx], VoiceSysExHdrSize+VoiceSysExSize, 1, pFile) == 1
&& m_pVoiceBank[nBankIdx]->StatusStart == 0xF0
&& m_pVoiceBank[nBankIdx]->CompanyID == 0x43
&& m_pVoiceBank[nBankIdx]->Format == 0x09
&& m_pVoiceBank[nBankIdx]->StatusEnd == 0xF7)
{
bool bBankLoaded = false;
if ( fread (m_pVoiceBank[nBank], VoiceSysExHdrSize+VoiceSysExSize, 1, pFile) == 1
&& m_pVoiceBank[nBank]->StatusStart == 0xF0
&& m_pVoiceBank[nBank]->CompanyID == 0x43
&& m_pVoiceBank[nBank]->Format == 0x09
&& m_pVoiceBank[nBank]->StatusEnd == 0xF7)
if (m_nBanksLoaded % 100 == 0)
{
LOGDBG ("Bank #%u successfully loaded", nBank);
LOGDBG ("Banks successfully loaded #%u", m_nBanksLoaded);
}
//LOGDBG ("Bank #%u successfully loaded", nBank);
m_BankFileName[nBank] = pEntry->d_name;
m_BankFileName[nBankIdx] = sBankName;
if (nBank > m_nNumHighestBank)
{
// This is the bank ID of the highest loaded bank
m_nNumHighestBank = nBank;
}
m_nBanksLoaded++;
bBankLoaded = true;
}
else if (bHeaderlessSysExVoices)
{
// Config says to accept headerless SysEx Voice Banks
// so reset file pointer and try again.
fseek (pFile, 0, SEEK_SET);
if (fread (m_pVoiceBank[nBankIdx]->Voice, VoiceSysExSize, 1, pFile) == 1)
{
if (m_nBanksLoaded % 100 == 0)
{
LOGDBG ("Banks successfully loaded #%u", m_nBanksLoaded);
}
//LOGDBG ("Bank #%u successfully loaded (headerless)", nBank);
// Add in the missing header items.
// Naturally it isn't possible to validate these!
m_pVoiceBank[nBankIdx]->StatusStart = 0xF0;
m_pVoiceBank[nBankIdx]->CompanyID = 0x43;
m_pVoiceBank[nBankIdx]->Format = 0x09;
m_pVoiceBank[nBankIdx]->ByteCountMS = 0x20;
m_pVoiceBank[nBankIdx]->ByteCountLS = 0x00;
m_pVoiceBank[nBankIdx]->Checksum = 0x00;
m_pVoiceBank[nBankIdx]->StatusEnd = 0xF7;
m_BankFileName[nBankIdx] = sBankName;
if (nBank > m_nNumHighestBank)
{
// This is the bank ID of the highest loaded bank
m_nNumHighestBank = nBank;
}
bBankLoaded = true;
m_nBanksLoaded++;
}
else if (bHeaderlessSysExVoices)
{
// Config says to accept headerless SysEx Voice Banks
// so reset file pointer and try again.
fseek (pFile, 0, SEEK_SET);
if (fread (m_pVoiceBank[nBank]->Voice, VoiceSysExSize, 1, pFile) == 1)
{
LOGDBG ("Bank #%u successfully loaded (headerless)", nBank);
// Add in the missing header items.
// Naturally it isn't possible to validate these!
m_pVoiceBank[nBank]->StatusStart = 0xF0;
m_pVoiceBank[nBank]->CompanyID = 0x43;
m_pVoiceBank[nBank]->Format = 0x09;
m_pVoiceBank[nBank]->ByteCountMS = 0x20;
m_pVoiceBank[nBank]->ByteCountLS = 0x00;
m_pVoiceBank[nBank]->Checksum = 0x00;
m_pVoiceBank[nBank]->StatusEnd = 0xF7;
m_BankFileName[nBank] = pEntry->d_name;
if (nBank > m_nNumHighestBank)
{
// This is the bank ID of the highest loaded bank
m_nNumHighestBank = nBank;
}
bBankLoaded = true;
}
}
if (!bBankLoaded)
{
LOGWARN ("%s: Invalid size or format", Filename.c_str ());
delete m_pVoiceBank[nBank];
m_pVoiceBank[nBank] = nullptr;
}
fclose (pFile);
}
else
if (!bBankLoaded)
{
delete m_pVoiceBank[nBank];
m_pVoiceBank[nBank] = nullptr;
LOGWARN ("%s: Invalid size or format", Filename.c_str ());
delete m_pVoiceBank[nBankIdx];
m_pVoiceBank[nBankIdx] = nullptr;
}
}
closedir (pDirectory);
fclose (pFile);
}
else
{
delete m_pVoiceBank[nBankIdx];
m_pVoiceBank[nBankIdx] = nullptr;
}
}
std::string CSysExFileLoader::GetBankName (unsigned nBankID)

4
src/sysexfileloader.h
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@ -35,6 +35,7 @@ public:
static const size_t SizeSingleVoice = 156;
static const unsigned VoiceSysExHdrSize = 8; // Additional (optional) Header/Footer bytes for bank of 32 voices
static const unsigned VoiceSysExSize = 4096; // Bank of 32 voices as per DX7 MIDI Spec
static const unsigned MaxSubDirs = 3; // Number of nested subdirectories supported.
struct TVoiceBank
{
@ -75,11 +76,14 @@ private:
std::string m_DirName;
unsigned m_nNumHighestBank;
unsigned m_nBanksLoaded;
TVoiceBank *m_pVoiceBank[MaxVoiceBankID+1];
std::string m_BankFileName[MaxVoiceBankID+1];
static uint8_t s_DefaultVoice[SizeSingleVoice];
void LoadBank (const char * sDirName, const char * sBankName, bool bHeaderlessSysExVoices, unsigned nSubDirCount);
};
#endif

13
submod.sh
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@ -0,0 +1,13 @@
#!/bin/bash
set -ex
git submodule update --init --recursive
cd circle-stdlib/
git checkout e318f89 # Needed to support Circle develop?
cd -
cd circle-stdlib/libs/circle
git checkout ec09d7e # develop
cd -
cd circle-stdlib/libs/circle-newlib
git checkout 48bf91d # needed for circle ec09d7e
cd -
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