diff options
| author | Thomas Grill <xovo@users.sourceforge.net> | 2005-03-11 04:58:01 +0000 |
|---|---|---|
| committer | Thomas Grill <xovo@users.sourceforge.net> | 2005-03-11 04:58:01 +0000 |
| commit | 27da08004c5f024a0f35e3cb4c2b3942548ebcfa (patch) | |
| tree | c89092a5e8d13c11719b7975b9557efbf3ca131f /externals/grill/vst/src/vstparam.cpp | |
| parent | 467591c8ba03dbd60ceada93482460de3b888838 (diff) | |
restructured VSThost code
better shell support
fix for build system
update for flext build systemcleanups
VSTTime info
added event processing (like Midi in)
svn path=/trunk/; revision=2617
Diffstat (limited to 'externals/grill/vst/src/vstparam.cpp')
| -rw-r--r-- | externals/grill/vst/src/vstparam.cpp | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/externals/grill/vst/src/vstparam.cpp b/externals/grill/vst/src/vstparam.cpp new file mode 100644 index 00000000..30515b23 --- /dev/null +++ b/externals/grill/vst/src/vstparam.cpp @@ -0,0 +1,105 @@ +/*
+vst~ - VST plugin object for PD
+based on the work of Jarno Seppänen and Mark Williamson
+
+Copyright (c)2003-2005 Thomas Grill (gr@grrrr.org)
+For information on usage and redistribution, and for a DISCLAIMER OF ALL
+WARRANTIES, see the file, "license.txt," in this distribution.
+*/
+
+#include "vsthost.h"
+#include <ctype.h>
+
+static void striptrail(char *txt)
+{
+ // strip trailing whitespace
+ for(int i = strlen(txt)-1; i >= 0; --i)
+ // cast to unsigned char since isspace functions don't want characters like 0x80 = -128
+ if(isspace(((unsigned char *)txt)[i])) txt[i] = 0;
+}
+
+void VSTPlugin::GetParamName(int numparam,char *name) const
+{
+ if(numparam < GetNumParams()) {
+ name[0] = 0;
+ Dispatch(effGetParamName,numparam,0,name);
+ striptrail(name);
+ }
+ else
+ name[0] = 0;
+}
+
+bool VSTPlugin::SetParamFloat(int parameter,float value)
+{
+ if(Is() && parameter >= 0 && parameter < GetNumParams()) {
+ effect->setParameter(effect,parameter,value);
+ return true;
+ }
+ else
+ return false;
+}
+
+void VSTPlugin::GetParamValue(int numparam,char *parval) const
+{
+ if(Is()) {
+ if(numparam < GetNumParams()) {
+ // how many chars needed?
+ char par_display[64]; par_display[0] = 0;
+ Dispatch(effGetParamDisplay,numparam,0,par_display);
+// if(par_display[7]) par_display[8] = 0; // set trailing zero
+
+ // how many chars needed?
+ char par_label[64]; par_label[0] = 0;
+ Dispatch(effGetParamLabel,numparam,0,par_label);
+ striptrail(par_label);
+// if(par_label[7]) par_label[8] = 0; // set trailing zero
+
+ sprintf(parval,"%s%s",par_display,par_label);
+ }
+ else
+ strcpy(parval,"Index out of range");
+ }
+ else
+ strcpy(parval,"Plugin not loaded");
+}
+
+float VSTPlugin::GetParamValue(int numparam) const
+{
+ if(Is() && numparam < GetNumParams())
+ return effect->getParameter(effect,numparam);
+ else
+ return -1.0;
+}
+
+void VSTPlugin::ScanParams(int cnt)
+{
+ if(cnt < 0) cnt = GetNumParams();
+ if(paramnamecnt >= cnt) return;
+ if(cnt >= GetNumParams()) cnt = GetNumParams();
+
+ char name[64];
+ for(int i = paramnamecnt; i < cnt; ++i) {
+ GetParamName(i,name);
+ if(*name) paramnames[std::string(name)] = i;
+ }
+ paramnamecnt = cnt;
+}
+
+int VSTPlugin::GetParamIx(const char *p) const
+{
+ NameMap::const_iterator it = paramnames.find(std::string(p));
+ return it == paramnames.end()?-1:it->second;
+}
+
+bool VSTPlugin::GetProgramName(int cat,int p,char *buf) const
+{
+ buf[0] = 0;
+ int parameter = p;
+ if(parameter < GetNumPrograms() && cat < GetNumCategories()) {
+ Dispatch(effGetProgramNameIndexed,parameter,cat,buf);
+ striptrail(buf);
+ return true;
+ }
+ else
+ return false;
+}
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