mirror of
https://github.com/cookiengineer/audacity
synced 2025-10-31 22:23:54 +01:00
Sven Giermann's FXP support changes
This commit is contained in:
lllucius
@@ -1664,7 +1664,7 @@ void VSTEffectDialog::OnLoad(wxCommandEvent & WXUNUSED(event))
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FileNames::DataDir(),
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wxEmptyString,
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wxT("xml"),
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wxT("*.xml"),
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wxT("VST Effect paramter files (*.fxp; *.xml)|*.fxp;*.xml"),
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wxFD_OPEN | wxRESIZE_BORDER,
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this);
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@@ -1673,14 +1673,110 @@ void VSTEffectDialog::OnLoad(wxCommandEvent & WXUNUSED(event))
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return;
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}
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// Load the program
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XMLFileReader reader;
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if (!reader.Parse(this, fn)) {
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// Inform user of load failure
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wxMessageBox(reader.GetErrorStr(),
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_("Error Loading VST Preset"),
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wxOK | wxCENTRE,
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this);
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size_t len = fn.Len();
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if (len > 4 && wxStricmp(fn.Mid(len - 4), wxT(".fxp")) == 0) {
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//
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// FXP specification from VST SDK 2.4 (vstfxstore.h)
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//
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int i;
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wxInt32 buffer[8];
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void *buf = NULL;
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bool error = false;
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// read VST program file (FXP)
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wxFFile fxpFile(fn, wxT("rb"));
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if (!fxpFile.IsOpened()) {
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wxMessageBox(wxString::Format(_("Could not open file: \"%s\""), fn.c_str()),
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_("Error Loading VST Program"),
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wxOK | wxCENTRE,
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this);
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return;
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}
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if (!error) error = !fread(buffer, 28, 1, fxpFile.fp());
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// VST always uses Big Endian, convert first
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for (i = 0; i < 7; i++)
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buffer[i] = wxINT32_SWAP_ON_LE(buffer[i]);
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if (!error) error = (buffer[0] != CCONST('C', 'c', 'n', 'K')); ///< 'CcnK'
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//VstInt32 byteSize; ///< size of this chunk, excl. magic + byteSize
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if (!error) {
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if (mAEffect->flags & effFlagsProgramChunks)
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error = (buffer[2] != CCONST('F', 'P', 'C', 'h')); ///< 'FxCk' (regular) or 'FPCh' (opaque chunk)
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else
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error = (buffer[2] != CCONST('F', 'x', 'C', 'k'));
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}
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if (!error) error = (buffer[3] != 1); ///< format version (currently 1)
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if (!error) error = (buffer[4] != mAEffect->uniqueID); ///< fx unique ID (could try to load instead, as XML does)
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//if (!error) error = (buffer[5] != ///< fx version (currently ignored)
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// mEffect->callDispatcher(effGetVendorVersion, 0, 0, NULL, 0.0));
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if (!error) error = (buffer[6] != mAEffect->numParams); ///< number of parameters
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buffer[7] = 0; // ensure trailing NUL
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if (!error) error = !fread(buffer, 28, 1, fxpFile.fp()); ///< program name (null-terminated ASCII string)
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if (!error) fn = wxConvLocal.cMB2WC((char*)buffer, 29, &len);
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if (mAEffect->flags & effFlagsProgramChunks) {
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if (!error) error = !fread(buffer, 4, 1, fxpFile.fp());
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i = wxINT32_SWAP_ON_LE(buffer[0]);
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if (!error) error = (i < 1);
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if (!error) {
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buf = new char[i];
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error = !buf;
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}
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if (!error) error = !fread(buf, i, 1, fxpFile.fp());
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if (!error) mEffect->callDispatcher(effSetChunk, 1, i, buf, 0.0);
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delete [] buf;
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}
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else {
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float val;
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if (!error) {
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buf = new char[mAEffect->numParams << 2];
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error = !buf;
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}
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if (!error) error = !fread(buf, mAEffect->numParams << 2, 1, fxpFile.fp());
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i = -1;
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while (!error && (++i < mAEffect->numParams)) {
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*((wxInt32*)&val) = wxINT32_SWAP_ON_LE(((wxInt32*)buf)[i]);
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if (!error) error = (val < 0.0 || val > 1.0);
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if (!error) mEffect->callSetParameter(i, val);
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}
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delete [] buf;
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}
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// set program name
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if (!error && !fn.IsEmpty()) {
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i = mProgram->GetCurrentSelection();
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if (i < 0) i = 0; // default to first program
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mProgram->SetString(i, fn);
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mProgram->SetValue(fn);
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mEffect->SetString(effSetProgramName, fn, i);
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}
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if (error) {
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wxMessageBox(_("Could not load file or incompatible content."),
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_("Error Loading VST Program"),
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wxOK | wxCENTRE,
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this);
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}
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fxpFile.Close();
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}
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else {
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// default to read as XML file
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// Load the program
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XMLFileReader reader;
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if (!reader.Parse(this, fn)) {
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// Inform user of load failure
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wxMessageBox(reader.GetErrorStr(),
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_("Error Loading VST Program"),
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wxOK | wxCENTRE,
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this);
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}
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}
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RefreshParameters();
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@@ -1694,70 +1790,139 @@ void VSTEffectDialog::OnSave(wxCommandEvent & WXUNUSED(event))
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wxString fn;
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// Ask the user for the real name
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fn = FileSelector(_("Save VST Preset As:"),
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FileNames::DataDir(),
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mProgram->GetValue() + wxT(".xml"),
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wxT("xml"),
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wxT("*.xml"),
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wxFD_SAVE | wxFD_OVERWRITE_PROMPT | wxRESIZE_BORDER,
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this);
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FileDialog fd(this,
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_("Save VST Program As:"),
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FileNames::DataDir(),
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mProgram->GetValue(),
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wxT("VST Effect program (*.fxp)|*.fxp|XML paramter file (*.xml)|*.xml"),
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wxFD_SAVE | wxFD_OVERWRITE_PROMPT | wxRESIZE_BORDER);
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// User canceled...
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if (fn.IsEmpty()) {
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if (fd.ShowModal() == wxID_CANCEL) {
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return;
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}
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XMLFileWriter xmlFile;
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fn = fd.GetPath();
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if (fd.GetFilterIndex() == 0) {
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//
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// FXP specification from VST SDK 2.4 (vstfxstore.h)
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//
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int i;
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wxInt32 buffer[8], chunkSize;
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void *buf = NULL;
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bool error = false;
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// Create/Open the file
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xmlFile.Open(fn, wxT("wb"));
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xmlFile.StartTag(wxT("vstprogrampersistence"));
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xmlFile.WriteAttr(wxT("version"), wxT("1"));
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i = mEffect->callDispatcher(effGetVendorVersion, 0, 0, NULL, 0.0);
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xmlFile.StartTag(wxT("effect"));
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xmlFile.WriteAttr(wxT("name"), mEffect->GetEffectIdentifier());
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xmlFile.WriteAttr(wxT("version"), i);
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xmlFile.StartTag(wxT("program"));
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xmlFile.WriteAttr(wxT("name"), mProgram->GetValue());
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long clen = 0;
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if (mAEffect->flags & effFlagsProgramChunks) {
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void *chunk = NULL;
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clen = mEffect->callDispatcher(effGetChunk, 1, 0, &chunk, 0.0);
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if (clen != 0) {
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xmlFile.StartTag(wxT("chunk"));
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xmlFile.WriteSubTree(b64encode(chunk, clen) + wxT('\n'));
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xmlFile.EndTag(wxT("chunk"));
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// Create/Open the file
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wxFFile fxpFile(fn, wxT("wb"));
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if (!fxpFile.IsOpened()) {
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wxMessageBox(wxString::Format(_("Could not open file: \"%s\""), fn.c_str()),
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_("Error Saving VST Program"),
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wxOK | wxCENTRE,
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this);
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return;
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}
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}
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if (clen == 0) {
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for (i = 0; i < mAEffect->numParams; i++) {
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xmlFile.StartTag(wxT("param"));
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xmlFile.WriteAttr(wxT("index"), i);
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xmlFile.WriteAttr(wxT("name"),
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mEffect->GetString(effGetParamName, i));
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xmlFile.WriteAttr(wxT("value"),
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wxString::Format(wxT("%f"),
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mEffect->callGetParameter(i)));
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xmlFile.EndTag(wxT("param"));
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buffer[0] = CCONST('C', 'c', 'n', 'K'); // VstInt32 chunkMagic; ///< 'CcnK'
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buffer[1] = 48; // VstInt32 byteSize; ///< size of this chunk, excl. magic + byteSize
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if (mAEffect->flags & effFlagsProgramChunks) { ///< 'FxCk' (regular) or 'FPCh' (opaque chunk)
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buffer[2] = CCONST('F', 'P', 'C', 'h');
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chunkSize = mEffect->callDispatcher(effGetChunk, 1, 0, &buf, 0.0);
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buffer[1] += 4;
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buffer[1] += chunkSize;
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}
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else {
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buffer[2] = CCONST('F', 'x', 'C', 'k');
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buffer[1] += (mAEffect->numParams << 2);
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}
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buffer[3] = 1; ///< format version (currently 1)
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buffer[4] = mAEffect->uniqueID; ///< fx unique ID
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buffer[5] = mEffect->callDispatcher(effGetVendorVersion, 0, 0, NULL, 0.0); ///< fx version
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buffer[6] = mAEffect->numParams;
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// VST always uses Big Endian, convert first
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for (i = 0; i < 7; i++)
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buffer[i] = wxINT32_SWAP_ON_LE(buffer[i]);
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if (!error) error = !fwrite(buffer, 28, 1, fxpFile.fp());
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memset(buffer, 0, 28);
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wxConvLocal.FromWChar((char*)buffer, 27, mProgram->GetValue());
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if (!error) error = (fwrite(buffer, 1, 28, fxpFile.fp()) < 28); ///< program name (null-terminated ASCII string)
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if (mAEffect->flags & effFlagsProgramChunks) {
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buffer[0] = wxINT32_SWAP_ON_LE(chunkSize);
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if (!error) error = !fwrite(buffer, 4, 1, fxpFile.fp());
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if (!error) error = !fwrite(buf, chunkSize, 1, fxpFile.fp());
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}
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else {
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float val;
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if (!error) {
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buf = new char[mAEffect->numParams << 2];
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error = !buf;
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}
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for (i = 0; i < mAEffect->numParams; i++) {
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val = mEffect->callGetParameter(i);
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((wxInt32*)buf)[i] = wxINT32_SWAP_ON_LE(*((wxInt32*)&val));
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}
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if (!error) error = !fwrite(buf, (mAEffect->numParams << 2), 1, fxpFile.fp());
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delete [] buf;
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}
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fxpFile.Close();
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}
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else {
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XMLFileWriter xmlFile;
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xmlFile.EndTag(wxT("program"));
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// Create/Open the file
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xmlFile.Open(fn, wxT("wb"));
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xmlFile.EndTag(wxT("effect"));
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xmlFile.StartTag(wxT("vstprogrampersistence"));
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xmlFile.WriteAttr(wxT("version"), wxT("1"));
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xmlFile.EndTag(wxT("vstprogrampersistence"));
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i = mEffect->callDispatcher(effGetVendorVersion, 0, 0, NULL, 0.0);
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xmlFile.StartTag(wxT("effect"));
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xmlFile.WriteAttr(wxT("name"), mEffect->GetEffectIdentifier());
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xmlFile.WriteAttr(wxT("version"), i);
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// Close the file
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xmlFile.Close();
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xmlFile.StartTag(wxT("program"));
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xmlFile.WriteAttr(wxT("name"), mProgram->GetValue());
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long clen = 0;
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if (mAEffect->flags & effFlagsProgramChunks) {
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void *chunk = NULL;
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clen = mEffect->callDispatcher(effGetChunk, 1, 0, &chunk, 0.0);
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if (clen != 0) {
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xmlFile.StartTag(wxT("chunk"));
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xmlFile.WriteSubTree(b64encode(chunk, clen) + wxT('\n'));
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xmlFile.EndTag(wxT("chunk"));
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}
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}
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if (clen == 0) {
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for (i = 0; i < mAEffect->numParams; i++) {
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xmlFile.StartTag(wxT("param"));
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xmlFile.WriteAttr(wxT("index"), i);
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xmlFile.WriteAttr(wxT("name"),
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mEffect->GetString(effGetParamName, i));
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xmlFile.WriteAttr(wxT("value"),
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wxString::Format(wxT("%f"),
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mEffect->callGetParameter(i)));
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xmlFile.EndTag(wxT("param"));
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}
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}
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xmlFile.EndTag(wxT("program"));
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xmlFile.EndTag(wxT("effect"));
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xmlFile.EndTag(wxT("vstprogrampersistence"));
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// Close the file
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xmlFile.Close();
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}
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}
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void VSTEffectDialog::OnSettings(wxCommandEvent & WXUNUSED(event))
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