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#include "m_pd.h"
#include "math.h"
#include "sharemem.h"
#include "vframe.h"
/* -------------------------- vsnapshot~ ------------------------------ */
static t_class *vsnapshot_class;
typedef struct _vsnapshot
{
t_object x_obj;
float x_f;
int id;
HANDLE hvf, hbits;
LPVOID memvf, membits;
unsigned long pos, size;
} t_vsnapshot;
static t_int *vsnapshot_perform(t_int *w)
{
t_vsnapshot *x = (t_vsnapshot *)(w[1]);
t_float *in = (t_sample *)(w[2]);
t_float *sync = (t_sample *)(w[3]);
int n = (int)(w[4]);
short *p16;
long *p32;
struct vframeimage *vfp=x->memvf;
unsigned long bytespp;
if(!vfp || !x->membits) return(w+5);
bytespp = vfp->f.pixelformat / 8;
switch(vfp->f.pixelformat)
{
case 16:
p16 = x->membits;
while (n--)
{
if(*sync>0 && *sync<1)
x->pos=*sync * (float)(x->size / bytespp);
else
if(*sync==1) x->pos=(x->size / bytespp)-1;
p16[x->pos++] = sampletocolor16(*in);
in++;
sync++;
if(x->pos*bytespp >= x->size)
{
x->pos=0;
outlet_float(x->x_obj.ob_outlet, x->id);
}
}
break;
case 32:
p32 = x->membits;
while (n--)
{
if(*sync>0 && *sync<1)
x->pos=*sync * (float)(x->size / bytespp);
else
if(*sync==1) x->pos=(x->size / bytespp)-1;
p32[x->pos++] = sampletocolor32(*in);
in++;
sync++;
if(x->pos*bytespp >= x->size)
{
x->pos=0;
outlet_float(x->x_obj.ob_outlet, x->id);
}
}
break;
}
return(w+5);
}
static void vsnapshot_dsp(t_vsnapshot *x, t_signal **sp)
{
dsp_add(vsnapshot_perform, 4, x, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
}
static void vsnapshot_float(t_vsnapshot *x, t_float f)
{
struct vframeimage *vfp;
if(x->id==f && x->membits!=NULL)
{
outlet_float(x->x_obj.ob_outlet, x->id);
return;
}
x->id = x->x_f = f;
openframedatabyid(x->id,
&x->hvf, &x->hbits, &x->memvf, &x->membits, &vfp);
if(!x->membits)
{
post("vsnapshot~: no memory at %d", x->id);
return;
} else
{
x->size = vfp->f.height*vfp->f.lpitch;
x->pos = 0;
outlet_float(x->x_obj.ob_outlet, x->id);
}
}
static void *vsnapshot_new(t_floatarg f)
{
t_vsnapshot *x = (t_vsnapshot *)pd_new(vsnapshot_class);
x->x_f = f;
x->pos=0;
x->hvf=NULL;
x->memvf=NULL;
x->hbits=NULL;
x->membits=NULL;
inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("signal"), gensym("signal"));
inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("float"), gensym("ft1"));
outlet_new(&x->x_obj, gensym("float"));
return (x);
}
static void vsnapshot_destroy(t_vsnapshot *x)
{
if(x->membits!=NULL) smfree(&x->hbits, x->membits);
if(x->memvf!=NULL) smfree(&x->hvf, x->memvf);
}
void vsnapshot_tilde_setup(void)
{
vsnapshot_class = class_new(gensym("vsnapshot~"),
(t_newmethod)vsnapshot_new, (t_method)vsnapshot_destroy,
sizeof(t_vsnapshot), 0, A_DEFFLOAT, 0);
CLASS_MAINSIGNALIN(vsnapshot_class, t_vsnapshot, x_f);
class_addmethod(vsnapshot_class, (t_method)vsnapshot_float,
gensym("ft1"), A_FLOAT, 0);
class_addmethod(vsnapshot_class, (t_method)vsnapshot_dsp, gensym("dsp"), 0);
}
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