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Code Issues Releases Wiki Activity

Sven Giermann's FXP support changes

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This commit is contained in:
lllucius
2014-05-23 06:07:27 +00:00
parent 631f6a119d
commit a2d7b626fd
1 changed files with 225 additions and 60 deletions
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285
src/effects/VST/VSTEffect.cpp
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@@ -1664,7 +1664,7 @@ void VSTEffectDialog::OnLoad(wxCommandEvent & WXUNUSED(event))
FileNames::DataDir(), FileNames::DataDir(),
wxEmptyString, wxEmptyString,
wxT("xml"), wxT("xml"),
wxT("*.xml"), wxT("VST Effect paramter files (*.fxp; *.xml)|*.fxp;*.xml"),
wxFD_OPEN | wxRESIZE_BORDER, wxFD_OPEN | wxRESIZE_BORDER,
this); this);
@@ -1673,14 +1673,110 @@ void VSTEffectDialog::OnLoad(wxCommandEvent & WXUNUSED(event))
return; return;
} }
// Load the program size_t len = fn.Len();
XMLFileReader reader; if (len > 4 && wxStricmp(fn.Mid(len - 4), wxT(".fxp")) == 0) {
if (!reader.Parse(this, fn)) { //
// Inform user of load failure // FXP specification from VST SDK 2.4 (vstfxstore.h)
wxMessageBox(reader.GetErrorStr(), //
_("Error Loading VST Preset"), int i;
wxOK | wxCENTRE, wxInt32 buffer[8];
this); void *buf = NULL;
bool error = false;
// read VST program file (FXP)
wxFFile fxpFile(fn, wxT("rb"));
if (!fxpFile.IsOpened()) {
wxMessageBox(wxString::Format(_("Could not open file: \"%s\""), fn.c_str()),
_("Error Loading VST Program"),
wxOK | wxCENTRE,
this);
return;
}
if (!error) error = !fread(buffer, 28, 1, fxpFile.fp());
// VST always uses Big Endian, convert first
for (i = 0; i < 7; i++)
buffer[i] = wxINT32_SWAP_ON_LE(buffer[i]);
if (!error) error = (buffer[0] != CCONST('C', 'c', 'n', 'K')); ///< 'CcnK'
//VstInt32 byteSize; ///< size of this chunk, excl. magic + byteSize
if (!error) {
if (mAEffect->flags & effFlagsProgramChunks)
error = (buffer[2] != CCONST('F', 'P', 'C', 'h')); ///< 'FxCk' (regular) or 'FPCh' (opaque chunk)
else
error = (buffer[2] != CCONST('F', 'x', 'C', 'k'));
}
if (!error) error = (buffer[3] != 1); ///< format version (currently 1)
if (!error) error = (buffer[4] != mAEffect->uniqueID); ///< fx unique ID (could try to load instead, as XML does)
//if (!error) error = (buffer[5] != ///< fx version (currently ignored)
// mEffect->callDispatcher(effGetVendorVersion, 0, 0, NULL, 0.0));
if (!error) error = (buffer[6] != mAEffect->numParams); ///< number of parameters
buffer[7] = 0; // ensure trailing NUL
if (!error) error = !fread(buffer, 28, 1, fxpFile.fp()); ///< program name (null-terminated ASCII string)
if (!error) fn = wxConvLocal.cMB2WC((char*)buffer, 29, &len);
if (mAEffect->flags & effFlagsProgramChunks) {
if (!error) error = !fread(buffer, 4, 1, fxpFile.fp());
i = wxINT32_SWAP_ON_LE(buffer[0]);
if (!error) error = (i < 1);
if (!error) {
buf = new char[i];
error = !buf;
}
if (!error) error = !fread(buf, i, 1, fxpFile.fp());
if (!error) mEffect->callDispatcher(effSetChunk, 1, i, buf, 0.0);
delete [] buf;
}
else {
float val;
if (!error) {
buf = new char[mAEffect->numParams << 2];
error = !buf;
}
if (!error) error = !fread(buf, mAEffect->numParams << 2, 1, fxpFile.fp());
i = -1;
while (!error && (++i < mAEffect->numParams)) {
*((wxInt32*)&val) = wxINT32_SWAP_ON_LE(((wxInt32*)buf)[i]);
if (!error) error = (val < 0.0 || val > 1.0);
if (!error) mEffect->callSetParameter(i, val);
}
delete [] buf;
}
// set program name
if (!error && !fn.IsEmpty()) {
i = mProgram->GetCurrentSelection();
if (i < 0) i = 0; // default to first program
mProgram->SetString(i, fn);
mProgram->SetValue(fn);
mEffect->SetString(effSetProgramName, fn, i);
}
if (error) {
wxMessageBox(_("Could not load file or incompatible content."),
_("Error Loading VST Program"),
wxOK | wxCENTRE,
this);
}
fxpFile.Close();
}
else {
// default to read as XML file
// Load the program
XMLFileReader reader;
if (!reader.Parse(this, fn)) {
// Inform user of load failure
wxMessageBox(reader.GetErrorStr(),
_("Error Loading VST Program"),
wxOK | wxCENTRE,
this);
}
} }
RefreshParameters(); RefreshParameters();
@@ -1694,70 +1790,139 @@ void VSTEffectDialog::OnSave(wxCommandEvent & WXUNUSED(event))
wxString fn; wxString fn;
// Ask the user for the real name // Ask the user for the real name
fn = FileSelector(_("Save VST Preset As:"), FileDialog fd(this,
FileNames::DataDir(), _("Save VST Program As:"),
mProgram->GetValue() + wxT(".xml"), FileNames::DataDir(),
wxT("xml"), mProgram->GetValue(),
wxT("*.xml"), wxT("VST Effect program (*.fxp)|*.fxp|XML paramter file (*.xml)|*.xml"),
wxFD_SAVE | wxFD_OVERWRITE_PROMPT | wxRESIZE_BORDER, wxFD_SAVE | wxFD_OVERWRITE_PROMPT | wxRESIZE_BORDER);
this);
// User canceled... // User canceled...
if (fn.IsEmpty()) { if (fd.ShowModal() == wxID_CANCEL) {
return; return;
} }
XMLFileWriter xmlFile; fn = fd.GetPath();
if (fd.GetFilterIndex() == 0) {
//
// FXP specification from VST SDK 2.4 (vstfxstore.h)
//
int i;
wxInt32 buffer[8], chunkSize;
void *buf = NULL;
bool error = false;
// Create/Open the file // Create/Open the file
xmlFile.Open(fn, wxT("wb")); wxFFile fxpFile(fn, wxT("wb"));
if (!fxpFile.IsOpened()) {
xmlFile.StartTag(wxT("vstprogrampersistence")); wxMessageBox(wxString::Format(_("Could not open file: \"%s\""), fn.c_str()),
xmlFile.WriteAttr(wxT("version"), wxT("1")); _("Error Saving VST Program"),
wxOK | wxCENTRE,
i = mEffect->callDispatcher(effGetVendorVersion, 0, 0, NULL, 0.0); this);
xmlFile.StartTag(wxT("effect")); return;
xmlFile.WriteAttr(wxT("name"), mEffect->GetEffectIdentifier());
xmlFile.WriteAttr(wxT("version"), i);
xmlFile.StartTag(wxT("program"));
xmlFile.WriteAttr(wxT("name"), mProgram->GetValue());
long clen = 0;
if (mAEffect->flags & effFlagsProgramChunks) {
void *chunk = NULL;
clen = mEffect->callDispatcher(effGetChunk, 1, 0, &chunk, 0.0);
if (clen != 0) {
xmlFile.StartTag(wxT("chunk"));
xmlFile.WriteSubTree(b64encode(chunk, clen) + wxT('\n'));
xmlFile.EndTag(wxT("chunk"));
} }
}
buffer[0] = CCONST('C', 'c', 'n', 'K'); // VstInt32 chunkMagic; ///< 'CcnK'
if (clen == 0) { buffer[1] = 48; // VstInt32 byteSize; ///< size of this chunk, excl. magic + byteSize
for (i = 0; i < mAEffect->numParams; i++) { if (mAEffect->flags & effFlagsProgramChunks) { ///< 'FxCk' (regular) or 'FPCh' (opaque chunk)
xmlFile.StartTag(wxT("param")); buffer[2] = CCONST('F', 'P', 'C', 'h');
chunkSize = mEffect->callDispatcher(effGetChunk, 1, 0, &buf, 0.0);
xmlFile.WriteAttr(wxT("index"), i); buffer[1] += 4;
xmlFile.WriteAttr(wxT("name"), buffer[1] += chunkSize;
mEffect->GetString(effGetParamName, i));
xmlFile.WriteAttr(wxT("value"),
wxString::Format(wxT("%f"),
mEffect->callGetParameter(i)));
xmlFile.EndTag(wxT("param"));
} }
else {
buffer[2] = CCONST('F', 'x', 'C', 'k');
buffer[1] += (mAEffect->numParams << 2);
}
buffer[3] = 1; ///< format version (currently 1)
buffer[4] = mAEffect->uniqueID; ///< fx unique ID
buffer[5] = mEffect->callDispatcher(effGetVendorVersion, 0, 0, NULL, 0.0); ///< fx version
buffer[6] = mAEffect->numParams;
// VST always uses Big Endian, convert first
for (i = 0; i < 7; i++)
buffer[i] = wxINT32_SWAP_ON_LE(buffer[i]);
if (!error) error = !fwrite(buffer, 28, 1, fxpFile.fp());
memset(buffer, 0, 28);
wxConvLocal.FromWChar((char*)buffer, 27, mProgram->GetValue());
if (!error) error = (fwrite(buffer, 1, 28, fxpFile.fp()) < 28); ///< program name (null-terminated ASCII string)
if (mAEffect->flags & effFlagsProgramChunks) {
buffer[0] = wxINT32_SWAP_ON_LE(chunkSize);
if (!error) error = !fwrite(buffer, 4, 1, fxpFile.fp());
if (!error) error = !fwrite(buf, chunkSize, 1, fxpFile.fp());
}
else {
float val;
if (!error) {
buf = new char[mAEffect->numParams << 2];
error = !buf;
}
for (i = 0; i < mAEffect->numParams; i++) {
val = mEffect->callGetParameter(i);
((wxInt32*)buf)[i] = wxINT32_SWAP_ON_LE(*((wxInt32*)&val));
}
if (!error) error = !fwrite(buf, (mAEffect->numParams << 2), 1, fxpFile.fp());
delete [] buf;
}
fxpFile.Close();
} }
else {
XMLFileWriter xmlFile;
xmlFile.EndTag(wxT("program")); // Create/Open the file
xmlFile.Open(fn, wxT("wb"));
xmlFile.EndTag(wxT("effect")); xmlFile.StartTag(wxT("vstprogrampersistence"));
xmlFile.WriteAttr(wxT("version"), wxT("1"));
xmlFile.EndTag(wxT("vstprogrampersistence")); i = mEffect->callDispatcher(effGetVendorVersion, 0, 0, NULL, 0.0);
xmlFile.StartTag(wxT("effect"));
xmlFile.WriteAttr(wxT("name"), mEffect->GetEffectIdentifier());
xmlFile.WriteAttr(wxT("version"), i);
// Close the file xmlFile.StartTag(wxT("program"));
xmlFile.Close(); xmlFile.WriteAttr(wxT("name"), mProgram->GetValue());
long clen = 0;
if (mAEffect->flags & effFlagsProgramChunks) {
void *chunk = NULL;
clen = mEffect->callDispatcher(effGetChunk, 1, 0, &chunk, 0.0);
if (clen != 0) {
xmlFile.StartTag(wxT("chunk"));
xmlFile.WriteSubTree(b64encode(chunk, clen) + wxT('\n'));
xmlFile.EndTag(wxT("chunk"));
}
}
if (clen == 0) {
for (i = 0; i < mAEffect->numParams; i++) {
xmlFile.StartTag(wxT("param"));
xmlFile.WriteAttr(wxT("index"), i);
xmlFile.WriteAttr(wxT("name"),
mEffect->GetString(effGetParamName, i));
xmlFile.WriteAttr(wxT("value"),
wxString::Format(wxT("%f"),
mEffect->callGetParameter(i)));
xmlFile.EndTag(wxT("param"));
}
}
xmlFile.EndTag(wxT("program"));
xmlFile.EndTag(wxT("effect"));
xmlFile.EndTag(wxT("vstprogrampersistence"));
// Close the file
xmlFile.Close();
}
} }
void VSTEffectDialog::OnSettings(wxCommandEvent & WXUNUSED(event)) void VSTEffectDialog::OnSettings(wxCommandEvent & WXUNUSED(event))