int main()
{
int a[] = {9,81,17,69,50,4,3,2,1};
buildminheap(a, 9);
int i;
for(i = 0; i < 9; i++)
{
printf("%d ", a[i]);
}
printf("\n");
// desheapsort(a, 9);
for(i = 0; i < 9; i++)
{
printf("%d ", a[i]);
}
printf("\n");
buildmaxheap(a, 9);
for(i = 0; i < 9; i++)
{
printf("%d ", a[i]);
}
printf("\n");
ascheapsort(a, 9);
for(i = 0; i < 9; i++)
{
printf("%d ", a[i]);
}
return 0;
}
// multi sample variant caller: CRISP, PICALL or low coverage method
int multisampleVC(struct OPTIONS* options,REFLIST* reflist,FILE* fp)
{
if (USE_DUPLICATES ==1) BAM_FILTER_MASK = (BAM_FUNMAP | BAM_FSECONDARY | BAM_FQCFAIL); else BAM_FILTER_MASK = (BAM_FUNMAP | BAM_FSECONDARY | BAM_FQCFAIL | BAM_FDUP);
int bamfiles = options->bamfiles;
int last=0; // last is the current position s.t. all reads have starting position > last
int i=0; int h=0;
unsigned long reads=0; int j=0; int prev_tid = -1; int rf=0;
int finishedfiles =0;
struct alignedread* pread = NULL;
struct BAMFILE_data* bamfiles_data = calloc(bamfiles,sizeof(struct BAMFILE_data)); // added one extra to list to store indels for all samples combined
READQUEUE* RQ = (READQUEUE*)malloc(sizeof(READQUEUE)); RQ->first = NULL; RQ->last = NULL; RQ->reads = 0;
int* fcigarlist = (int*)malloc(sizeof(int)*4096);
// data structure for holding potential variants and read counts, etc
struct VARIANT variant; variant.ploidy = calloc(options->bamfiles,sizeof(int));
init_poolsizes(&variant,options,PICALL);
init_variant(&variant,options->bamfiles,options->bamfiles);
variant.options = options; // pointer to options
BAMHEAP bheap; bheap.harray = (int*)malloc(sizeof(int)*bamfiles); bheap.length = bamfiles;
for (i=0;i<bamfiles;i++) { bheap.harray[i] = i; bamfiles_data[i].finished= 0;}
reflist->cinterval = -1; // first interval to the right of current base
init_bamfiles(bamfiles_data,options->bamfilelist,bamfiles,options->regions,&options->targettid,&options->targetstart,&options->targetend);
// error when reading indexed bam files probably due to lack of reads in some files resulting in heap error, fixed oct 17 2012
j=0; for (i=0;i<bamfiles;i++)
{
finishedfiles += bamfiles_data[i].finished;
if (bamfiles_data[i].finished ==0) bheap.harray[j++] = i; else bheap.length--;
}
buildminheap(&bheap,bamfiles_data); // initial minheap call
//fprintf(stderr,"finishedfiles %d \n",finishedfiles);
if (INDEL_REALIGNMENT >=1) allocate_mem_heap(bamfiles_data,bamfiles,100);
HAPLOTYPES =0,MIN_COVERAGE_FLANKING =0;
for (i=0;i<variant.samples;i++)
{
MIN_COVERAGE_FLANKING += 2*variant.ploidy[i]; // enforced for regions outside the bedfile target
HAPLOTYPES += variant.ploidy[i];
}
//int min_coverage_target = 1*variant->ploidy*variant->samples; // enforced for regions outside the bedfile target
int offset_readlength = 150; // call variants in window (last,current_read_position-offset_readlength) to allow for indel analysis, set to 0 for original behavior of program
// the value of offset should not affect the correctness or speed of the code
int current_position =0;
while (finishedfiles < bamfiles)
{
i = bheap.harray[0]; // take the top read off the heap
if ( !(bamfiles_data[i].read->flag & BAM_FILTER_MASK))
{
if (bamfiles_data[i].read->tid != prev_tid) // read's chromosome is different from previousread
{
if (prev_tid >=0) // finish the processing of previous chromosome and cleanup
{
if (RQ->reads >0)
{
fprintf(stderr,"processing %d reads left in queue for chrom %s...",RQ->reads,reflist->names[prev_tid]);
callvariants(reflist,prev_tid,last,reflist->lengths[prev_tid],RQ,bamfiles_data,options,&variant);
empty_queue(RQ,bamfiles_data); //clean thequeue
}
if (INDEL_REALIGNMENT >=1) clean_indel_lists(bamfiles_data,bamfiles,-1); current_position = 0;
for(j=0;j<bamfiles;j++) bamfiles_data[j].last=NULL; last =0;
free(reflist->sequences[prev_tid]);
fprintf(stderr,".....finished processing reads for chrom %s\n",reflist->names[prev_tid]);
fprintf(stdout,".....finished processing reads for chrom %s\n",reflist->names[prev_tid]);
reflist->cinterval = -1; // reset to -1
}
read_chromosome(reflist,bamfiles_data[i].read->tid,fp);
prev_tid =bamfiles_data[i].read->tid;
}
if (bamfiles_data[i].read->position <last)
{
fprintf(stderr,"reads out of order i:%d h:%d pos: %d %d\n",i,h,bamfiles_data[i].read->position,last);
fprintf(stderr,"the program will now exit, please sort the bamfiles\n");
return 1;
}
if (INDEL_REALIGNMENT >=1 && bamfiles_data[i].read->position > current_position+offset_readlength)
{
// need to clean up indel lists when we encounter a new chromosome...
print_indel_lists(bamfiles_data,bamfiles,current_position+offset_readlength);
clean_indel_lists(bamfiles_data,bamfiles,current_position);
current_position = bamfiles_data[i].read->position;
}
// realign reads before calling variants, each read is realigned only once
// small bug here, only call variants when last is less than current read position
// bug fixed here, update last only when 'callvariants' is invoked, ???
if (RQ->reads > 0 && bamfiles_data[i].read->position > last+offset_readlength)
{
callvariants(reflist,bamfiles_data[i].read->tid,last,bamfiles_data[i].read->position-offset_readlength,RQ,bamfiles_data,options,&variant);
}
last = bamfiles_data[i].read->position-offset_readlength; if (last < 0) last =0;
bamfiles_data[i].read->cflag = 0;
// this function should only be called on reads inside/close_to targeted regions..
parse_cigar(bamfiles_data[i].read,reflist,bamfiles_data[i].read->tid,fcigarlist);
if (INDEL_REALIGNMENT >=1 && bamfiles_data[i].read->gaps > 0 && bamfiles_data[i].read->mquality >= 20) extract_indel_reads(bamfiles_data[i].read,reflist,bamfiles_data[i].read->tid,i,bamfiles_data[i].ilist);
//fprintf(stdout,"read s:%d IS:%d %s %d \n",i,bamfiles_data[i].read->IS,bamfiles_data[i].read->readid,bamfiles_data[i].read->position);
if (RQ->last == NULL)
{
RQ->last = bamfiles_data[i].read; RQ->first = RQ->last; (RQ->last)->next = NULL;
RQ->reads++;
}
else
{
(RQ->last)->next = bamfiles_data[i].read; RQ->last = bamfiles_data[i].read;
(RQ->last)->next = NULL;
RQ->reads++;
}
if (bamfiles_data[i].last ==NULL) bamfiles_data[i].first = RQ->last;
else bamfiles_data[i].last->nextread= RQ->last;
bamfiles_data[i].last = RQ->last; (RQ->last)->nextread =NULL;
// read that passes filters from 'i'th bam file is inserted in queue, should also add it to OPE queue
//if (bamfiles_data[i].read->position < bamfiles_data[i].read->mateposition && bamfiles_data[i].read->lastpos > bamfiles_data[i].read->mateposition)
//fprintf(stdout,"B %d %s %d %d %d \n",i,bamfiles_data[i].read->readid,bamfiles_data[i].read->position,bamfiles_data[i].read->mateposition,bamfiles_data[i].read->IS);
}
else free_read(bamfiles_data[i].read);
//fprintf(stdout,"read from %d %d %s\n",i,bamfiles_data[i].read->position,bamfiles_data[i].read->readid);
if (options->regions ==NULL) rf =samread(bamfiles_data[i].fp,bamfiles_data[i].b);
else rf = bam_iter_read(bamfiles_data[i].fp->x.bam,bamfiles_data[i].iter,bamfiles_data[i].b);
if (rf >=0)
{
bamfiles_data[i].read = get_read_bamfile(bamfiles_data[i].b,bamfiles_data[i].fp,pread);
//if (options->samples ==0) bamfiles_data[i].read->sampleid = i;
//else bamfiles_data[i].read->sampleid = options->BAM_TO_SAMPLE[i];
// bug here june 30 2013 commented out .... in 12 T2D pools
bamfiles_data[i].read->sampleid = i;
if (!(bamfiles_data[i].read->flag & BAM_FILTER_MASK)) minHeapify(&bheap,0,bamfiles_data);
}
else // no more reads in file 'i'
{
bamfiles_data[i].finished = 1; bamfiles_data[i].read= NULL;
bam_destroy1(bamfiles_data[i].b);
h++; finishedfiles++;
//fprintf(stderr,"finished reading bam file %s \n",options->bamfilelist[i]); //return 1;
bheap.harray[0] = bheap.harray[bheap.length-1]; bheap.length--;
if (bheap.length > 0) minHeapify(&bheap,0,bamfiles_data);
// call minheapify like function to push sample i off the heap, reduce heap size
}
if ((++reads)%1000000 ==0 && RQ->reads >0) fprintf(stderr,".....processed %ld reads QSIZE:%d %s:%d:%d variants called %d\n",reads,RQ->reads,RQ->first->chrom,RQ->first->position,RQ->first->lastpos,VARIANTS_CALLED);
}
if (prev_tid >=0) // finish the processing of last chromosome
{
if (RQ->reads >0)
{
fprintf(stderr,"processing %d reads left in queue for chrom %s.....",RQ->reads,reflist->names[prev_tid]);
if (reflist->lengths[prev_tid] > last) callvariants(reflist,prev_tid,last,reflist->lengths[prev_tid],RQ,bamfiles_data,options,&variant);
empty_queue(RQ,bamfiles_data); //clean thequeue
}
else fprintf(stderr,"queue for chrom %s is empty ",reflist->names[prev_tid]);
free(reflist->sequences[prev_tid]);
fprintf(stderr,"finished processing reads for chrom %s \n\n",reflist->names[prev_tid]);
if (INDEL_REALIGNMENT >=1)
{
print_indel_lists(bamfiles_data,bamfiles,reflist->lengths[prev_tid]);
clean_indel_lists(bamfiles_data,bamfiles,reflist->lengths[prev_tid]);
}
}
fprintf(stderr,"CRISP has finished processing bam files: total reads processed %ld total variants called %d \n\n",reads,VARIANTS_CALLED);
//for (i=0;i<bamfiles;i++) bam_destroy1(bamfiles_data[i].b);
free(bamfiles_data); free(bheap.harray); free(fcigarlist);
//empty_queue(RQ); //clean thequeue
//fprintf(stdout,"FILE %d %s %d %s %d %d %d mapped %d \n",i,read->readid,read->flag,read->chrom,read->position,read->mquality,read->IS,(read->flag &4));
return 1;
}
