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/* 
 * >~: signal comparision
 *
 * (c) 1999-2011 IOhannes m zmölnig, forum::für::umläute, institute of electronic music and acoustics (iem)
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License along
 * with this program.  If not, see <http://www.gnu.org/licenses/>.
 */


#include "zexySIMD.h"

/* ------------------------ relational~ ----------------------------- */

/* ----------------------------- gt_tilde ----------------------------- */
static t_class *gt_tilde_class, *scalargt_tilde_class;

typedef struct _gt_tilde
{
  t_object x_obj;
  t_float x_f;
} t_gt_tilde;

typedef struct _scalargt_tilde
{
  t_object x_obj;
  t_float x_f;
  t_float x_g;    	    /* inlet value */
} t_scalargt_tilde;

static void *gt_tilde_new(t_symbol* UNUSED(s), int argc, t_atom *argv)
{
  if (argc > 1) post(">~: extra arguments ignored");
  if (argc) 
    {
      t_scalargt_tilde *x = (t_scalargt_tilde *)pd_new(scalargt_tilde_class);
      floatinlet_new(&x->x_obj, &x->x_g);
      x->x_g = atom_getfloatarg(0, argc, argv);
      outlet_new(&x->x_obj, gensym("signal"));
      x->x_f = 0;
      return (x);
    }
  else
    {
      t_gt_tilde *x = (t_gt_tilde *)pd_new(gt_tilde_class);
      inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("signal"), gensym("signal"));
      outlet_new(&x->x_obj, gensym("signal"));
      x->x_f = 0;
      return (x);
    }
}

static t_int *gt_tilde_perform(t_int *w)
{
  t_sample *in1 = (t_sample *)(w[1]);
  t_sample *in2 = (t_sample *)(w[2]);
  t_sample *out = (t_sample *)(w[3]);
  int n = (int)(w[4]);
  while (n--) *out++ = *in1++ > *in2++; 
  return (w+5);
}

static t_int *gt_tilde_perf8(t_int *w)
{
  t_sample *in1 = (t_sample *)(w[1]);
  t_sample *in2 = (t_sample *)(w[2]);
  t_sample *out = (t_sample *)(w[3]);
  int n = (int)(w[4]);
  for (; n; n -= 8, in1 += 8, in2 += 8, out += 8)
    {
      t_sample f0 = in1[0], f1 = in1[1], f2 = in1[2], f3 = in1[3];
      t_sample f4 = in1[4], f5 = in1[5], f6 = in1[6], f7 = in1[7];
      
      t_sample g0 = in2[0], g1 = in2[1], g2 = in2[2], g3 = in2[3];
      t_sample g4 = in2[4], g5 = in2[5], g6 = in2[6], g7 = in2[7];
      
      out[0] = f0 > g0; out[1] = f1 > g1; out[2] = f2 > g2; out[3] = f3 > g3;
      out[4] = f4 > g4; out[5] = f5 > g5; out[6] = f6 > g6; out[7] = f7 > g7;
    }
  return (w+5);
}

static t_int *scalargt_tilde_perform(t_int *w)
{
  t_sample *in = (t_sample *)(w[1]);
  t_sample f = *(t_float *)(w[2]);
  t_sample *out = (t_sample *)(w[3]);
  int n = (int)(w[4]);
  while (n--) *out++ = *in++ > f; 
  return (w+5);
}

static t_int *scalargt_tilde_perf8(t_int *w)
{
  t_sample *in = (t_sample *)(w[1]);
  t_sample g = *(t_float *)(w[2]);
  t_sample *out = (t_sample *)(w[3]);
  int n = (int)(w[4]);
  for (; n; n -= 8, in += 8, out += 8)
    {
      t_sample f0 = in[0], f1 = in[1], f2 = in[2], f3 = in[3];
      t_sample f4 = in[4], f5 = in[5], f6 = in[6], f7 = in[7];
      
      out[0] = f0 > g; out[1] = f1 > g; out[2] = f2 > g; out[3] = f3 > g;
      out[4] = f4 > g; out[5] = f5 > g; out[6] = f6 > g; out[7] = f7 > g;
    }
  return (w+5);
}
#ifdef __SSE__
static t_int *gt_tilde_performSSE(t_int *w)
{
  __m128 *in1 = (__m128 *)(w[1]);
  __m128 *in2 = (__m128 *)(w[2]);
  __m128 *out = (__m128 *)(w[3]);
  int n = (int)(w[4])>>4;
  const __m128 one    = _mm_set1_ps(1.f);

  while (n--) {
    __m128 xmm0, xmm1;
    xmm0   = _mm_cmpgt_ps(in1[0], in2[0]);
    out[0] = _mm_and_ps  (xmm0 , one);

    xmm1   = _mm_cmpgt_ps(in1[1], in2[1]);
    out[1] = _mm_and_ps  (xmm1 , one);

    xmm0   = _mm_cmpgt_ps(in1[2], in2[2]);
    out[2] = _mm_and_ps  (xmm0 , one);

    xmm1   = _mm_cmpgt_ps(in1[3], in2[3]);
    out[3] = _mm_and_ps  (xmm1 , one);

    in1+=4;
    in2+=4;
    out+=4;
  }  

  return (w+5);
}
static t_int *scalargt_tilde_performSSE(t_int *w)
{
  __m128 *in = (__m128 *)(w[1]);
  __m128 *out = (__m128 *)(w[3]);
  float f = *(t_float *)(w[2]);
  __m128 scalar = _mm_set1_ps(f);
  int n = (int)(w[4])>>4;
  const __m128 one    = _mm_set1_ps(1.f);

  while (n--) {
    __m128 xmm0, xmm1;
    xmm0   = _mm_cmpgt_ps (in[0], scalar);
    out[0] = _mm_and_ps   (xmm0,  one);

    xmm1   = _mm_cmpgt_ps (in[1], scalar);
    out[1] = _mm_and_ps   (xmm1,  one);

    xmm0   = _mm_cmpgt_ps (in[2], scalar);
    out[2] = _mm_and_ps   (xmm0,  one);

    xmm1   = _mm_cmpgt_ps (in[3], scalar);
    out[3] = _mm_and_ps   (xmm1,  one);

    in +=4;
    out+=4;
  }
  return (w+5);
}
#endif /* __SSE__ */


static void gt_tilde_dsp(t_gt_tilde* UNUSED(x), t_signal **sp)
{
  t_sample*in1=sp[0]->s_vec;
  t_sample*in2=sp[1]->s_vec;
  t_sample*out=sp[2]->s_vec;

  int n=sp[0]->s_n;

#ifdef __SSE__
  if(
     Z_SIMD_CHKBLOCKSIZE(n)&&
     Z_SIMD_CHKALIGN(in1)&&
     Z_SIMD_CHKALIGN(in2)&&
     Z_SIMD_CHKALIGN(out)&&
     ZEXY_TYPE_EQUAL(t_sample, float)
     )
    {
      dsp_add(gt_tilde_performSSE, 4, in1, in2, out, n);
    } else
#endif
  if (n&7)
    dsp_add(gt_tilde_perform, 4, in1, in2, out, n);
  else	
    dsp_add(gt_tilde_perf8, 4, in1, in2, out, n);
}

static void scalargt_tilde_dsp(t_scalargt_tilde *x, t_signal **sp)
{
  t_sample*in =sp[0]->s_vec;
  t_sample*out=sp[1]->s_vec;
  int n       =sp[0]->s_n;

#ifdef __SSE__
  if(
     Z_SIMD_CHKBLOCKSIZE(n)&&
     Z_SIMD_CHKALIGN(in)&&
     Z_SIMD_CHKALIGN(out)&&
     ZEXY_TYPE_EQUAL(t_sample, float)
     )
    {
      dsp_add(scalargt_tilde_performSSE, 4, in, &x->x_g, out, n);
    } else
#endif
  if (n&7)
    dsp_add(scalargt_tilde_perform, 4, in, &x->x_g, out, n);
  else	
    dsp_add(scalargt_tilde_perf8,   4, in, &x->x_g, out, n);
}

static void gt_tilde_help(t_object*x)
{
  post("\n"HEARTSYMBOL" >~\t\t:: compare 2 signals");
}

void setup_0x3e0x7e(void)
{
  gt_tilde_class = class_new(gensym(">~"), (t_newmethod)gt_tilde_new, 0,
			   sizeof(t_gt_tilde), 0, A_GIMME, 0);
  class_addmethod(gt_tilde_class, (t_method)gt_tilde_dsp, gensym("dsp"), 0);
  CLASS_MAINSIGNALIN(gt_tilde_class, t_gt_tilde, x_f);
  class_addmethod  (gt_tilde_class, (t_method)gt_tilde_help, gensym("help"), A_NULL);
  class_sethelpsymbol(gt_tilde_class, gensym("zigbinops"));

  scalargt_tilde_class = class_new(gensym(">~"), 0, 0,
				 sizeof(t_scalargt_tilde), 0, 0);
  CLASS_MAINSIGNALIN(scalargt_tilde_class, t_scalargt_tilde, x_f);
  class_addmethod(scalargt_tilde_class, (t_method)scalargt_tilde_dsp, gensym("dsp"),
		  0);
  class_addmethod  (scalargt_tilde_class, (t_method)gt_tilde_help, gensym("help"), A_NULL);
  class_sethelpsymbol(scalargt_tilde_class, gensym("zigbinops"));

  zexy_register(">~");
}

#ifndef ZEXY_LIBRARY
void setup(void)
{
    setup_0x3e0x7e();
}
#endif