Merge branch 'develop' of gitea.larke.org:klarke/libcm into develop

README.md

@@ -0,0 +1,3 @@
+
+libcm is a C application development framework with an emphasis on audio signal processing.
+

src/cmMsgProtocol.h

@@ -41,6 +41,7 @@ extern "C" {
     kDeviceDuiId,          // ui<--eng device label
     kProgramDuiId,         // ui<--eng program label
     kProgramDfltDuiId,     // ui<--eng dflt program label
+    kPgmDoneDuiId,         // ui<--end the program is done 
     
     // The following selId's are used by cmAudDsp to indicate various commands.
     kSetAudioCfgDuiId,     // 1) select an audio system setup

src/dsp/cmDspClass.h

@@ -390,6 +390,9 @@ extern "C" {
   // Used to transmit messages to the audio system.
   cmDspRC_t  cmDspSendValueToAudioSys( cmDspCtx_t* ctx, unsigned msgTypeId, unsigned selId, unsigned valId, const cmDspValue_t* valPtr ); 
 
+  // Notify the system that the program is done and can be shutdown
+  cmDspRC_t cmDspProgramIsDone( cmDspCtx_t* ctx );
+  
   // The following functions are used to send message to the UI and are 
   // implemented in cmDspUi.c.  They are declared here because they are 
   // visible to the cmDspInst functions which use them but are not available

src/dsp/cmDspUi.c

@@ -188,6 +188,9 @@ cmDspRC_t _cmDspUiUseInstSymbolAsLabel( cmDspCtx_t* ctx, cmDspInst_t* inst, unsi
 cmDspRC_t  cmDspSendValueToAudioSys( cmDspCtx_t* ctx, unsigned msgTypeId, unsigned selId, unsigned valId, const cmDspValue_t* valPtr )
 { return _cmDspUiMsg(ctx, msgTypeId, selId, 0, NULL, valId, valPtr ); }
 
+cmDspRC_t cmDspProgramIsDone( cmDspCtx_t* ctx )
+{ return _cmDspUiMsg(ctx, kUiSelAsId, kPgmDoneDuiId, 0, NULL, cmInvalidId, NULL ); }
+
 cmDspRC_t   cmDspUiConsolePrint( cmDspCtx_t* ctx, cmChar_t* text )
 {
   cmDspValue_t v;
@@ -514,3 +517,4 @@ cmDspRC_t  cmDspUiNewPage(          cmDspCtx_t* ctx, const cmChar_t* title )
 
   return rc;
 }
+