From 17ec1deb74e2e934dc11fb4d9a2f8c6cef34c5a7 Mon Sep 17 00:00:00 2001 From: Hans-Christoph Steiner Date: Mon, 9 Jul 2007 20:45:58 +0000 Subject: This commit was generated by cvs2svn to compensate for changes in r7949, which included commits to RCS files with non-trunk default branches. svn path=/trunk/externals/moonlib/; revision=7950 --- sfread2~.c | 410 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 410 insertions(+) create mode 100644 sfread2~.c (limited to 'sfread2~.c') diff --git a/sfread2~.c b/sfread2~.c new file mode 100644 index 0000000..aceb39e --- /dev/null +++ b/sfread2~.c @@ -0,0 +1,410 @@ +#include +//#include +#include "g_canvas.h" +#ifdef NT +#pragma warning( disable : 4244 ) +#pragma warning( disable : 4305 ) +#endif + +#include +#include +#ifndef NT +#include +#include +#else +#include +#endif + + +#include +#include + +/* ------------------------ sfread~ ----------------------------- */ + +#ifdef NT +#define BINREADMODE "rb" +#else +#define BINREADMODE "r" +#endif + +static t_class *sfread_class; + + +typedef struct _sfread +{ + t_object x_obj; + void* x_mapaddr; + int x_fd; + + t_int x_play; + t_int x_outchannels; + t_int x_loop; + double x_index; //samples + t_float x_speed; //1=sample rate + t_int x_interp; + + t_int x_size; // bytes + t_int x_fchannels; // file channels + t_int x_len; // samples + t_int x_skip; //bytes + t_clock *x_clock; + + + t_glist * x_glist; + t_outlet *x_stateout; + t_outlet *x_sizeout; +} t_sfread; + +#define MAX_CHANS 4 + + + +//1 -> 2 + +//1 -> 4 + +//2 -> 4 + + +static t_int *sfread_perform(t_int *w) +{ + t_sfread* x = (t_sfread*)(w[1]); + short *fp, *buf = x->x_mapaddr+x->x_skip; +/* t_float *in = (t_float *)(w[2]); will we need this (indexing) ?*/ + int c = x->x_outchannels; + int fc = x->x_fchannels,fc2=2*fc; + double findex = x->x_index; + t_float speed = x->x_speed; + float frac, a, b, cc, d, cminusb; + int i,n,index,rindex; + int end = x->x_len -3;/* -3 is for safe interpolation*/ + t_float* out[MAX_CHANS]; + t_int in_off[MAX_CHANS]; + t_int loground=(fc==1?0:fc==2?1:2); + + if(!x->x_mapaddr) return(w+c+4); + + for (i=0;i end) + findex = end; + + if (findex + n*speed > end) { // playing forward end + if (!x->x_loop) { + x->x_play=0; + findex = 0; + clock_delay(x->x_clock, 0); + } + } + + if (findex + n*speed < 1) { // playing backwards end + if (!x->x_loop) { + x->x_play=0; + findex = end; + clock_delay(x->x_clock, 0); + } + + } + + + if (x->x_play && x->x_mapaddr) { + + if (speed != 1) { /* different speed */ + if (x->x_interp) while (n--) { + index=findex; + rindex=index< end) { + if (x->x_loop) findex = 1; + else break; + } + if (findex < 1) { + if (x->x_loop) findex = end; + else break; + } + } + else while (n--) { + rindex=((int)findex)< end) { + if (x->x_loop) findex = 1; + else break; + } + if (findex < 1) { + if (x->x_loop) findex = end; + else break; + } + } + /* Fill with zero in case of end */ + n++; + while (n--) + for (i=0;i end2) { + if (x->x_loop) rindex = 1; + else break; + } + } + + /* Fill with zero in case of end */ + n++; + while (n--) + for (i=0;i>loground; + } + + } + else { + while (n--) { + for (i=0;ix_index = findex; + return (w+c+4); +} + + +static void sfread_loop(t_sfread *x, t_floatarg f) +{ + x->x_loop = f; +} + +static void sfread_interp(t_sfread *x, t_floatarg f) +{ + x->x_interp = (f!=0); +} + +static void sfread_index(t_sfread *x, t_floatarg f) +{ + x->x_index = f; +} + + +static void sfread_size(t_sfread* x) +{ + outlet_float(x->x_sizeout,x->x_len); +} + +static void sfread_state(t_sfread* x) +{ + outlet_float(x->x_stateout, x->x_play); +} + +static void sfread_float(t_sfread *x, t_floatarg f) +{ + int t = f; + if (t && x->x_mapaddr) { + x->x_play=1; + } + else { + x->x_play=0; + } + sfread_state(x); +} + + +static void sfread_bang(t_sfread* x) +{ + x->x_index = x->x_speed>0?1:x->x_len-3; + sfread_float(x,1.0); +} + + +static void sfread_dsp(t_sfread *x, t_signal **sp) +{ +/* post("sfread: dsp"); */ + switch (x->x_outchannels) { + case 1: + dsp_add(sfread_perform, 4, x, sp[0]->s_vec, + sp[1]->s_vec, sp[0]->s_n); + break; + case 2: + dsp_add(sfread_perform, 5, x, sp[0]->s_vec, + sp[1]->s_vec,sp[2]->s_vec, sp[0]->s_n); + break; + case 4: + dsp_add(sfread_perform, 6, x, sp[0]->s_vec, + sp[1]->s_vec,sp[2]->s_vec, + sp[3]->s_vec,sp[4]->s_vec, + sp[0]->s_n); + break; + } +} + + +extern int open_soundfile(const char *dirname, const char *filename, int headersize, + int *p_bytespersamp, int *p_bigendian, int *p_nchannels, long *p_bytelimit, + long skipframes); /* in pd/src/d_soundfile.c */ + + +static void sfread_open(t_sfread *x,t_symbol *filename) +{ + struct stat fstate; + char fname[MAXPDSTRING]; + int bytespersamp=0,bigendian=0,channels=0; + long bytelimit= 0x7fffffff,skipframes = 0; + + if (filename == &s_) { + post("sfread: open without filename"); + return; + } + + canvas_makefilename(glist_getcanvas(x->x_glist), filename->s_name, + fname, MAXPDSTRING); + + + /* close the old file */ + + if (x->x_mapaddr) munmap(x->x_mapaddr,x->x_size); + if (x->x_fd >= 0) close(x->x_fd); + + /*if ((x->x_fd = open(fname,O_RDONLY)) < 0)*/ + //post("fname: %s",fname); + + if ((x->x_fd = open_soundfile("",fname, -1,&bytespersamp,&bigendian, + &channels, &bytelimit,0)) < 0) + { + error("can't open %s",fname); + x->x_play = 0; + x->x_mapaddr = NULL; + return; + } + + if( ((x->x_fchannels!=1)&&(x->x_fchannels!=2)&&(x->x_fchannels!=4)) || + (bytespersamp!=2) ) + { + error("file %s error: not a 1 or 2 or 4 channels soundfile, or not a 16 bits soundfile",fname); + post("channels:%d bytes:%d ",x->x_fchannels,bytespersamp); + x->x_play = 0; + x->x_mapaddr = NULL; + return; + } + + x->x_fchannels=channels; + + /* get the size */ + + fstat(x->x_fd,&fstate); + x->x_size = (int)fstate.st_size; + x->x_skip=x->x_size-bytelimit; + x->x_len = (bytelimit)/(bytespersamp*x->x_fchannels); + + //post("bytelimit=%d x->x_size-x->x_skip=%d x->x_size=%d x->x_skip=%d",bytelimit,x->x_size-x->x_skip,x->x_size,x->x_skip); + + /* map the file into memory */ + + if (!(x->x_mapaddr = mmap(NULL,x->x_size,PROT_READ,MAP_PRIVATE,x->x_fd,0))) + { + error("can't mmap %s",fname); + return; + } + sfread_size(x); +} + +static void *sfread_new(t_floatarg chan,t_floatarg interp) +{ + t_sfread *x = (t_sfread *)pd_new(sfread_class); + t_int c = chan; + + x->x_glist = (t_glist*) canvas_getcurrent(); + + if (c<1 || c > MAX_CHANS) c = 1; + floatinlet_new(&x->x_obj, &x->x_speed); + + + x->x_fd = -1; + x->x_mapaddr = NULL; + + x->x_size = 0; + x->x_len = 0; + x->x_loop = 0; + x->x_outchannels = c; + x->x_fchannels = 1; + x->x_mapaddr=NULL; + x->x_index = 1; + x->x_skip = 0; + x->x_speed = 1.0; + x->x_play = 0; + x->x_interp = (interp!=0); + x->x_clock = clock_new(x, (t_method)sfread_state); + + while (c--) { + outlet_new(&x->x_obj, gensym("signal")); + } + + x->x_stateout = outlet_new(&x->x_obj, &s_float); + x->x_sizeout = outlet_new(&x->x_obj, &s_float); + +/* post("sfread: x_channels = %d, x_speed = %f",x->x_channels,x->x_speed);*/ + + return (x); +} + +static void sfread_free(t_sfread *x) +{ + clock_free(x->x_clock); +} + +void sfread2_tilde_setup(void) +{ + /* sfread */ + + sfread_class = class_new(gensym("sfread2~"), (t_newmethod)sfread_new, + (t_method)sfread_free,sizeof(t_sfread), 0,A_DEFFLOAT,A_DEFFLOAT,0); + + class_addmethod(sfread_class, nullfn, gensym("signal"), 0); + class_addmethod(sfread_class, (t_method) sfread_dsp, gensym("dsp"), 0); + class_addmethod(sfread_class, (t_method) sfread_open, gensym("open"), A_SYMBOL,A_NULL); + class_addmethod(sfread_class, (t_method) sfread_size, gensym("size"), 0); + class_addmethod(sfread_class, (t_method) sfread_state, gensym("state"), 0); + class_addfloat(sfread_class, sfread_float); + class_addbang(sfread_class,sfread_bang); + class_addmethod(sfread_class,(t_method)sfread_loop,gensym("loop"),A_FLOAT,A_NULL); + class_addmethod(sfread_class,(t_method)sfread_interp,gensym("interp"),A_FLOAT,A_NULL); + class_addmethod(sfread_class,(t_method)sfread_index,gensym("index"),A_FLOAT,A_NULL); + + + // Impossible with pd-0.35 because it leaves super-user mode. + //if(munlockall()) perror("munlockall()"); + //if(mlockall(MCL_CURRENT)) perror("mlockall(MCL_CURRENT)"); +} + + + + + + -- cgit v1.2.1