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+#include "cmPrefix.h"
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+#include "cmGlobal.h"
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+#include "cmFloatTypes.h"
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+#include "cmRpt.h"
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+#include "cmErr.h"
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+#include "cmCtx.h"
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+#include "cmMem.h"
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+#include "cmMallocDebug.h"
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+#include "cmLinkedHeap.h"
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+#include "cmXml.h"
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+#include "cmText.h"
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+#include "cmXScore.h"
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+
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+cmXsH_t cmXsNullHandle = cmSTATIC_NULL_HANDLE;
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+
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+typedef struct cmXsNote_str
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+{
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+} cmXsNote_t;
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+
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+typedef struct cmXsVoice_str
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+{
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+ unsigned id; // Voice id
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+ cmXsNote_t* noteL; // List of notes in this voice
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+ struct cmXsVoice_str* link; // Link to other voices in this measure
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+} cmXsVoice_t;
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+
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+typedef struct cmXsMeas_str
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+{
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+ unsigned number; // Measure number
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+
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+ unsigned divisions;
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+ unsigned beats;
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+ unsigned beat_type;
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+
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+ cmXsVoice_t* voiceL; // List of voices in this measure
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+
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+ struct cmXsMeas_str* link; // Link to other measures in this part.
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+} cmXsMeas_t;
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+
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+typedef struct cmXsPart_str
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+{
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+ const cmChar_t* idStr; // Id of this part
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+ cmXsMeas_t* measL; // List of measures in this part.
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+ struct cmXsPart_str* link; // Link to other parts in this score
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+} cmXsPart_t;
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+
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+typedef struct
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+{
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+ cmErr_t err;
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+ cmXmlH_t xmlH;
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+ cmLHeapH_t lhH;
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+ cmXsPart_t* partL;
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+} cmXScore_t;
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+
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+cmXScore_t* _cmXScoreHandleToPtr( cmXsH_t h )
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+{
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+ cmXScore_t* p = (cmXScore_t*)h.h;
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+ assert( p != NULL );
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+ return p;
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+}
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+
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+cmXsRC_t _cmXScoreFinalize( cmXScore_t* p )
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+{
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+ cmXsRC_t rc = kOkXsRC;
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+
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+ // release the XML file
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+ if( cmXmlIsValid(p->xmlH) )
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+ cmXmlFree( &p->xmlH );
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+
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+ // release the local linked heap memory
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+ if( cmLHeapIsValid(p->lhH) )
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+ cmLHeapDestroy(&p->lhH);
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+
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+ cmMemFree(p);
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+
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+ return rc;
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+}
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+
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+cmXsRC_t _cmXScoreMissingNode( cmXScore_t* p, const cmChar_t* label, const cmXmlAttr_t* attr )
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+{
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+ if( attr == NULL )
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+ return cmErrMsg(&p->err,kSyntaxErrorXsRC,"Missing XML node '%s'.",label);
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+
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+ return cmErrMsg(&p->err,kSyntaxErrorXsRC,"Missing XML node '%s' - Attribute:%s=%s",label,attr->label,attr->value);
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+}
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+
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+cmXsRC_t _cmXScoreMissingAttribute( cmXScore_t* p, const cmXmlNode_t* np, const cmChar_t* attrLabel )
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+{
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+ return cmErrMsg(&p->err,kSyntaxErrorXsRC,"Missing XML attribute '%s' from node '%s'.",attrLabel,np->label);
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+}
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+
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+cmXsRC_t _cmXScoreParsePartList( cmXScore_t* p )
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+{
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+ cmXsRC_t rc = kOkXsRC;
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+ cmXsPart_t* lastPartPtr = NULL;
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+ const cmXmlNode_t* xnp;
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+
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+ // find the 'part-list'
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+ if((xnp = cmXmlSearch( cmXmlRoot(p->xmlH), "part-list", NULL, 0)) == NULL )
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+ return _cmXScoreMissingNode(p,"part-list",NULL);
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+
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+ const cmXmlNode_t* cnp = xnp->children;
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+
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+ // for each child of the 'part-list'
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+ for(; cnp!=NULL; cnp=cnp->sibling)
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+ if( cmTextCmp( cnp->label, "score-part" ) == 0 )
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+ {
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+ const cmXmlAttr_t* a;
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+
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+ // find the 'score-part' id
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+ if((a = cmXmlFindAttrib(cnp,"id")) == NULL )
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+ return _cmXScoreMissingAttribute(p,cnp,"id");
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+
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+ // allocate a new part record
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+ cmXsPart_t* pp = cmLhAllocZ(p->lhH,cmXsPart_t,1);
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+
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+ pp->idStr = a->value; // set the part id
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+
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+ // link the new part record to the end of the part list
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+ if(lastPartPtr == NULL)
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+ p->partL = pp;
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+ else
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+ lastPartPtr->link = pp;
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+
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+ lastPartPtr = pp;
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+ }
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+
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+ return rc;
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+}
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+
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+
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+cmXsRC_t _cmXScoreParseMeasure(cmXScore_t* p, cmXsPart_t* pp, const cmXmlNode_t* mnp )
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+{
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+ cmXsRC_t rc = kOkXsRC;
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+
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+ cmXsMeas_t* meas = cmLhAllocZ(p->lhH,cmXsMeas_t,1);
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+ const cmXmlNode_t* np;
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+
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+ // get measure number
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+ if( cmXmlAttrUInt(mnp,"number", &meas->number) != kOkXmlRC )
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+ return _cmXScoreMissingAttribute(p,mnp,"number");
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+
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+ if( pp->measL == NULL )
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+ pp->measL = meas;
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+ else
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+ {
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+ cmXsMeas_t* m = pp->measL;
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+ while( m->link != NULL )
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+ m = m->link;
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+ m->link = meas;
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+ }
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+
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+ // get measure attributes node
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+ if((np = cmXmlSearch(mnp,"attributes",NULL,0)) == NULL)
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+ return rc; // (this measure does not have any attributes)
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+
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+ cmXmlNodeUInt(np,&meas->divisions,"divisions",NULL);
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+ cmXmlNodeUInt(np,&meas->beats,"time","beats",NULL);
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+ cmXmlNodeUInt(np,&meas->beat_type,"time","beat-type",NULL);
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+
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+ return rc;
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+}
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+
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+cmXsRC_t _cmXScoreParsePart( cmXScore_t* p, cmXsPart_t* pp )
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+{
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+ cmXsRC_t rc = kOkXsRC;
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+ const cmXmlNode_t* xnp;
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+ cmXmlAttr_t partAttr = { "id", pp->idStr };
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+
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+ // find the 'part'
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+ if((xnp = cmXmlSearch( cmXmlRoot(p->xmlH), "part", &partAttr, 1)) == NULL )
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+ return _cmXScoreMissingNode(p,"part",&partAttr);
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+
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+ // for each child of this part - find each measure
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+ const cmXmlNode_t* cnp = xnp->children;
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+ for(; cnp!=NULL; cnp=cnp->sibling)
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+ if( cmTextCmp(cnp->label,"measure") == 0 )
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+ if((rc = _cmXScoreParseMeasure(p,pp,cnp)) != kOkXsRC )
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+ return rc;
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+
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+ return rc;
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+}
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+
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+cmXsRC_t cmXScoreInitialize( cmCtx_t* ctx, cmXsH_t* hp, const cmChar_t* xmlFn )
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+{
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+ cmXsRC_t rc = kOkXsRC;
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+
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+ if((rc = cmXScoreFinalize(hp)) != kOkXsRC )
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+ return rc;
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+
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+ cmXScore_t* p = cmMemAllocZ(cmXScore_t,1);
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+
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+ cmErrSetup(&p->err,&ctx->rpt,"XScore");
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+
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+ // create a local linked heap
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+ if( cmLHeapIsValid( p->lhH = cmLHeapCreate(8196,ctx)) == false )
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+ return cmErrMsg(&p->err,kLHeapFailXsRC,"Lheap create failed.");
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+
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+ // open the music xml file
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+ if( cmXmlAlloc(ctx, &p->xmlH, xmlFn) != kOkXmlRC )
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+ {
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+ rc = cmErrMsg(&p->err,kXmlFailXsRC,"Unable to open the MusicXML file '%s'.",cmStringNullGuard(xmlFn));
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+ goto errLabel;
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+ }
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+
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+ // parse the part-list
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+ if((rc = _cmXScoreParsePartList( p )) != kOkXsRC )
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+ goto errLabel;
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+
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+ cmXsPart_t* pp = p->partL;
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+ for(; pp!=NULL; pp=pp->link)
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+ if((rc = _cmXScoreParsePart(p,pp)) != kOkXsRC )
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+ goto errLabel;
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+
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+
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+ errLabel:
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+ if( rc != kOkXsRC )
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+ _cmXScoreFinalize(p);
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+ else
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+ hp->h = p;
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+
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+ return rc;
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+}
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+
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+cmXsRC_t cmXScoreFinalize( cmXsH_t* hp )
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+{
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+ cmXsRC_t rc = kOkXsRC;
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+
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+ if( hp == NULL || cmXScoreIsValid(*hp)==false )
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+ return kOkXsRC;
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+
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+ cmXScore_t* p = _cmXScoreHandleToPtr(*hp);
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+
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+ if((rc = _cmXScoreFinalize(p)) != kOkXsRC )
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+ return rc;
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+
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+ hp->h = NULL;
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+
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+ return rc;
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+
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+}
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+
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+
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+bool cmXScoreIsValid( cmXsH_t h )
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+{ return h.h != NULL; }
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+
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247
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+void cmXScoreReport( cmXsH_t h, cmRpt_t* rpt )
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248
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+{
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249
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+ cmXScore_t* p = _cmXScoreHandleToPtr(h);
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+
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+ cmXsPart_t* pp = p->partL;
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252
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+ for(; pp!=NULL; pp=pp->link)
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+ {
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+ cmRptPrintf(rpt,"Part:%s\n",pp->idStr);
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+
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256
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+ const cmXsMeas_t* meas = pp->measL;
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+ for(; meas!=NULL; meas=meas->link)
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+ cmRptPrintf(rpt," %i : div:%i beat:%i beat-type:%i\n",meas->number,meas->divisions,meas->beats,meas->beat_type);
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+ }
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260
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+
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261
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+}
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262
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+
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263
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+
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264
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+cmXsRC_t cmXScoreTest( cmCtx_t* ctx, const cmChar_t* fn )
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265
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+{
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266
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+ cmXsRC_t rc;
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267
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+ cmXsH_t h = cmXsNullHandle;
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268
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+
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269
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+ if((rc = cmXScoreInitialize( ctx, &h, fn)) != kOkXsRC )
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270
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+ return cmErrMsg(&ctx->err,rc,"XScore alloc failed.");
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+
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272
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+ cmXScoreReport(h,&ctx->rpt);
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+
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+ return cmXScoreFinalize(&h);
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+
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+}
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Kevin Larke
8 年之前