winamp/Src/Plugins/Visualization/vis_avs/r_sscope.cpp

/*
  LICENSE
  -------
Copyright 2005 Nullsoft, Inc.
All rights reserved.

Redistribution and use in source and binary forms, with or without modification, 
are permitted provided that the following conditions are met:

  * Redistributions of source code must retain the above copyright notice,
    this list of conditions and the following disclaimer. 

  * Redistributions in binary form must reproduce the above copyright notice,
    this list of conditions and the following disclaimer in the documentation
    and/or other materials provided with the distribution. 

  * Neither the name of Nullsoft nor the names of its contributors may be used to 
    endorse or promote products derived from this software without specific prior written permission. 
 
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR 
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND 
FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 
OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

*/
#define M_PI 3.14159265358979323846

#include <windows.h>
#include <commctrl.h>
#include <math.h>
#include "r_defs.h"
#include "resource.h"
#include "avs_eelif.h"
#if 0//syntax highlighting
#include "richedit.h"
#endif
#include "timing.h"
#include "../Agave/Language/api_language.h"

#define C_THISCLASS C_SScopeClass
#define MOD_NAME "Render / SuperScope"



class C_THISCLASS : public C_RBASE {
	protected:
    static BOOL CALLBACK g_DlgProc(HWND hwndDlg, UINT uMsg, WPARAM wParam,LPARAM lParam);

	public:
		C_THISCLASS();
		virtual ~C_THISCLASS();
		virtual int render(char visdata[2][2][576], int isBeat, int *framebuffer, int *fbout, int w, int h);
		virtual char *get_desc() { static char desc[128]; return (!desc[0]?WASABI_API_LNGSTRING_BUF(IDS_RENDER_SUPERSCOPE,desc,128):desc); }
		virtual HWND conf(HINSTANCE hInstance, HWND hwndParent);
		virtual void load_config(unsigned char *data, int len);
		virtual int  save_config(unsigned char *data);
    RString effect_exp[4];
    int which_ch;
    int num_colors;
		int colors[16];
    int mode;

    int color_pos;

    NSEEL_VMCTX AVS_EEL_CONTEXTNAME;
    double *var_b, *var_x, *var_y, *var_i, *var_n, *var_v, *var_w, *var_h, *var_red, *var_green, *var_blue;
    double *var_skip, *var_linesize, *var_drawmode;
    int inited;
    NSEEL_CODEHANDLE codehandle[4];
    int need_recompile;
    CRITICAL_SECTION rcs;
};

#define PUT_INT(y) data[pos]=(y)&255; data[pos+1]=(y>>8)&255; data[pos+2]=(y>>16)&255; data[pos+3]=(y>>24)&255
#define GET_INT() (data[pos]|(data[pos+1]<<8)|(data[pos+2]<<16)|(data[pos+3]<<24))
void C_THISCLASS::load_config(unsigned char *data, int len)
{
	int pos=0;
  int x=0;
  if (data[pos] == 1)
  {
    pos++;
    load_string(effect_exp[0],data,pos,len);
    load_string(effect_exp[1],data,pos,len);
    load_string(effect_exp[2],data,pos,len);
    load_string(effect_exp[3],data,pos,len);
  }
  else
  {
    char buf[1025];
    if (len-pos >= 1024)
    {
      memcpy(buf,data+pos,1024);
      pos+=1024;
      buf[1024]=0;
      effect_exp[3].assign(buf+768);
      buf[768]=0;
      effect_exp[2].assign(buf+512);
      buf[512]=0;
      effect_exp[1].assign(buf+256);
      buf[256]=0;
      effect_exp[0].assign(buf);
    }
  }
	if (len-pos >= 4) { which_ch=GET_INT(); pos+=4; }
	if (len-pos >= 4) { num_colors=GET_INT(); pos+=4; }
	if (num_colors <= 16) while (len-pos >= 4 && x < num_colors) { colors[x++]=GET_INT(); pos+=4; }
  else num_colors=0;
  if (len-pos >= 4) { mode=GET_INT(); pos+=4; }
  need_recompile=1;
}

int  C_THISCLASS::save_config(unsigned char *data)
{
  int x=0;
	int pos=0;
  data[pos++]=1;
  save_string(data,pos,effect_exp[0]);
  save_string(data,pos,effect_exp[1]);
  save_string(data,pos,effect_exp[2]);
  save_string(data,pos,effect_exp[3]);
	PUT_INT(which_ch); pos+=4;
	PUT_INT(num_colors); pos+=4;
  while (x < num_colors) { PUT_INT(colors[x]); x++;  pos+=4; }
  PUT_INT(mode); pos+=4;
	return pos;
}



C_THISCLASS::C_THISCLASS()
{
  InitializeCriticalSection(&rcs);
  AVS_EEL_INITINST();
#ifdef LASER
  mode=1;
#else
  mode=0;
#endif


  need_recompile=1;
  which_ch=2;
  num_colors=1;
  memset(colors,0,sizeof(colors));
  colors[0]=RGB(255,255,255);
  color_pos=0;
  memset(codehandle,0,sizeof(codehandle));

#ifdef LASER
  effect_exp[0].assign("d=i+v*0.2; r=t+i*$PI*4; x=cos(r)*d; y=sin(r)*d");
  effect_exp[1].assign("t=t-0.05");
  effect_exp[2].assign("");
  effect_exp[3].assign("n=100");
#else
  effect_exp[0].assign("d=i+v*0.2; r=t+i*$PI*4; x=cos(r)*d; y=sin(r)*d");
  effect_exp[1].assign("t=t-0.05");
  effect_exp[2].assign("");
  effect_exp[3].assign("n=800");
#endif

  var_n=0;
}

C_THISCLASS::~C_THISCLASS()
{
  int x;
  for (x = 0; x < 4; x ++) 
  {
    freeCode(codehandle[x]);
    codehandle[x]=0;
  }
  AVS_EEL_QUITINST();
  DeleteCriticalSection(&rcs);
}

static __inline int makeint(double t)
{
  if (t <= 0.0) return 0;
  if (t >= 1.0) return 255;
  return (int)(t*255.0);
}
	
int C_THISCLASS::render(char visdata[2][2][576], int isBeat, int *framebuffer, int *fbout, int w, int h)
{
  if (need_recompile)
  {
    EnterCriticalSection(&rcs);

    if (!var_n || g_reset_vars_on_recompile) 
    {
      clearVars();
      var_n = registerVar("n");
      var_b = registerVar("b");
      var_x = registerVar("x");
      var_y = registerVar("y");
      var_i = registerVar("i");
      var_v = registerVar("v");
      var_w = registerVar("w");
      var_h = registerVar("h");
      var_red = registerVar("red");
      var_green = registerVar("green");
      var_blue = registerVar("blue");
      var_linesize = registerVar("linesize");
      var_skip = registerVar("skip");
      var_drawmode = registerVar("drawmode");
      *var_n=100.0;
      inited=0;
    }
  
    need_recompile=0;
    int x;
    for (x = 0; x < 4; x ++) 
    {
      freeCode(codehandle[x]);
      codehandle[x]=compileCode(effect_exp[x].get());
    }

    LeaveCriticalSection(&rcs);
  }
  if (isBeat&0x80000000) return 0;

  if (!num_colors) return 0;

  int x;
  int current_color;
  unsigned char *fa_data;
  char center_channel[576];
  int ws=(which_ch&4)?1:0;
  int xorv=(ws*128)^128;

  if ((which_ch&3) >=2)
  {
    for (x = 0; x < 576; x ++) center_channel[x]=visdata[ws^1][0][x]/2+visdata[ws^1][1][x]/2;
    fa_data=(unsigned char *)center_channel;
  }
  else fa_data=(unsigned char *)&visdata[ws^1][which_ch&3][0];

  color_pos++;
  if (color_pos >= num_colors * 64) color_pos=0;

  {
    int p=color_pos/64;
    int r=color_pos&63;
    int c1,c2;
    int r1,r2,r3;
    c1=colors[p];
    if (p+1 < num_colors)
      c2=colors[p+1];
    else c2=colors[0];

    r1=(((c1&255)*(63-r))+((c2&255)*r))/64;
    r2=((((c1>>8)&255)*(63-r))+(((c2>>8)&255)*r))/64;
    r3=((((c1>>16)&255)*(63-r))+(((c2>>16)&255)*r))/64;
    
    current_color=r1|(r2<<8)|(r3<<16);
  }

  *var_h=h;
  *var_w=w;
  *var_b=isBeat?1.0:0.0;
  *var_blue=(current_color&0xff)/255.0;
  *var_green=((current_color>>8)&0xff)/255.0;
  *var_red=((current_color>>16)&0xff)/255.0;
  *var_skip=0.0;
  *var_linesize = (double) ((g_line_blend_mode&0xff0000)>>16);
  *var_drawmode = mode ? 1.0 : 0.0;
  if (codehandle[3] && !inited) { executeCode(codehandle[3],visdata); inited=1; }
  executeCode(codehandle[1],visdata);
  if (isBeat) executeCode(codehandle[2],visdata);
  if (codehandle[0]) 
  {
    int candraw=0,lx=0,ly=0;
#ifdef LASER
    double dlx=0.0,dly=0.0;
#endif
    int a;
    int l=(int)*var_n;
    if (l > 128*1024) l = 128*1024;
    for (a = 0; a < l; a ++)
    {
      int x,y;
      double r=(a*576.0)/l;
      double s1=r-(int)r;
      double yr=(fa_data[(int)r]^xorv)*(1.0f-s1)+(fa_data[(int)r+1]^xorv)*(s1);
      *var_v = yr/128.0 - 1.0;
      *var_i = (double)a/(double)(l-1);
      *var_skip=0.0;
      executeCode(codehandle[0],visdata);
      x=(int)((*var_x+1.0)*w*0.5);
      y=(int)((*var_y+1.0)*h*0.5);
      if (*var_skip < 0.00001)
      {
        int thiscolor=makeint(*var_blue)|(makeint(*var_green)<<8)|(makeint(*var_red)<<16);
        if (*var_drawmode < 0.00001)
        {
          if (y >= 0 && y < h && x >= 0 && x < w) 
          {
  #ifdef LASER
            laser_drawpoint((float)*var_x,(float)*var_y,thiscolor);
  #else
            BLEND_LINE(framebuffer+x+y*w,thiscolor);
  #endif
          }
        }
        else
        {
          if (candraw)
          {
  #ifdef LASER
            LineType l;
            l.color=thiscolor;
            l.mode=0;
            l.x1=(float)*var_x;
            l.y1=(float)*var_y;
            l.x2=(float)dlx;
            l.y2=(float)dly;
            g_laser_linelist->AddLine(&l);
  #else
            if ((thiscolor&0xffffff) || (g_line_blend_mode&0xff)!=1)
            {
              line(framebuffer,lx,ly,x,y,w,h,thiscolor,(int) (*var_linesize+0.5));
            }
  #endif
          } // candraw
        } // line
      } // skip
      candraw=1;
      lx=x;
      ly=y;
  #ifdef LASER
      dlx=*var_x;
      dly=*var_y;
  #endif
    }
  }
 
  return 0;
}

C_RBASE *R_SScope(char *desc)
{
	if (desc) { strcpy(desc,MOD_NAME); return NULL; }
	return (C_RBASE *) new C_THISCLASS();
}
typedef struct 
{
  int name;
  char *init;
  char *point;
  char *frame;
  char *beat;
} presetType;

static presetType presets[]=
{
#ifdef LASER
  {"Laser - Bouncing Line","n=8;xp=0;yp=0;d=0.5;r=0;xps=0; yps=0; dtr=0.1; bv=1; gv=1; rv=1;","x=xp+d*cos(r)*sign(i-0.5); y=yp+d*sin(r)*sign(i-0.5);","r=r+dtr; xp=xp*0.99+xps*0.01; yp=yp*0.99+yps*0.01; red=rv; green=gv; blue=bv;","xps=(rand(100)-50)/50; yps=(rand(100)-50)/50; dtr=-dtr; rv=rand(100)/100; gv=rand(100)/100; bv=rand(100)/100;"},
  {"Laser - BeatFlex Scope","n=5; tv=0; dtv=0; tvs=1.0;","x=(i-0.5)*2; y=-sin(i*$PI)*tv+v*0.2;","tv=tv*0.97+tvs*0.03;","tvs=-sign(tvs);"},
  {"Laser - Pulsing Box","n=5;r=$PI/4;","x=cos(i*$PI*2+r); y=sin(i*$PI*2+r); red=rv; green=gv; blue=bv;","rv=rv*0.93; gv=gv*0.93; bv=bv*0.93;","bv=blue; gv=green;rv=red;"},
#else
  {IDS_SPIRAL,"n=800","d=i+v*0.2; r=t+i*$PI*4; x=cos(r)*d; y=sin(r)*d","t=t-0.05",""},
  {IDS_3D_SCOPE_DISH, "n=200","iz=1.3+sin(r+i*$PI*2)*(v+0.5)*0.88; ix=cos(r+i*$PI*2)*(v+0.5)*.88; iy=-0.3+abs(cos(v*$PI)); x=ix/iz;y=iy/iz;","",""},
  {IDS_ROTATING_BOW_THING,"n=80;t=0.0;","r=i*$PI*2; d=sin(r*3)+v*0.5; x=cos(t+r)*d; y=sin(t-r)*d","t=t+0.01",""},
  {IDS_VERTICAL_BOUNCING_SCOPE,"n=100; t=0; tv=0.1;dt=1;","x=t+v*pow(sin(i*$PI),2); y=i*2-1.0;","t=t*0.9+tv*0.1","tv=((rand(50.0)/50.0))*dt; dt=-dt;"},
  {IDS_SPIRAL_GRAPH_FUN,"n=100;t=0;","r=i*$PI*128+t; x=cos(r/64)*0.7+sin(r)*0.3; y=sin(r/64)*0.7+cos(r)*0.3","t=t+0.01;","n=80+rand(120.0)"},
  {IDS_ALTERNATING_DIAGONAL_SCOPE,"n=64; t=1;","sc=0.4*sin(i*$PI); x=2*(i-0.5-v*sc)*t; y=2*(i-0.5+v*sc);","","t=-t;"},
  {IDS_VIBRATING_WORM,"n=w; dt=0.01; t=0; sc=1;","x=cos(2*i+t)*0.9*(v*0.5+0.5); y=sin(i*2+t)*0.9*(v*0.5+0.5);","t=t+dt;dt=0.9*dt+0.001; t=if(above(t,$PI*2),t-$PI*2,t);","dt=sc;sc=-sc;"},
  {IDS_WANDERING_SIMPLE,"n=800;xa=-0.5;ya=0.0;xb=-0.0;yb=0.75;c=200;f=0;\r\nnxa=(rand(100)-50)*.02;nya=(rand(100)-50)*.02;\r\nnxb=(rand(100)-50)*.02;nyb=(rand(100)-50)*.02;","//primary render\r\nx=(ex*i)+xa;\r\ny=(ey*i)+ya;\r\n\r\n//volume offset\r\nx=x+ ( cos(r) * v * dv);\r\ny=y+ ( sin(r) * v * dv);\r\n\r\n//color values\r\nred=i;\r\ngreen=(1-i);\r\nblue=abs(v*6);","f=f+1;\r\nt=1-((cos((f*3.1415)/c)+1)*.5);\r\nxa=((nxa-lxa)*t)+lxa;\r\nya=((nya-lya)*t)+lya;\r\nxb=((nxb-lxb)*t)+lxb;\r\nyb=((nyb-lyb)*t)+lyb;\r\nex=(xb-xa);\r\ney=(yb-ya);\r\nd=sqrt(sqr(ex)+sqr(ey));\r\nr=atan(ey/ex)+(3.1415/2);\r\ndv=d*2","c=f;\r\nf=0;\r\nlxa=nxa;\r\nlya=nya;\r\nlxb=nxb;\r\nlyb=nyb;\r\nnxa=(rand(100)-50)*.02;\r\nnya=(rand(100)-50)*.02;\r\nnxb=(rand(100)-50)*.02;\r\nnyb=(rand(100)-50)*.02"},
  {IDS_FLITTERBUG,"n=180;t=0.0;lx=0;ly=0;vx=rand(200)-100;vy=rand(200)-100;cf=.97;c=200;f=0","x=nx;y=ny;\r\nr=i*3.14159*2; d=(sin(r*5*(1-s))+i*0.5)*(.3-s);\r\ntx=(t*(1-(s*(i-.5))));\r\nx=x+cos(tx+r)*d; y=y+sin(t-y)*d;\r\nred=abs(x-nx)*5;\r\ngreen=abs(y-ny)*5;\r\nblue=1-s-red-green;","f=f+1;t=(f*2*3.1415)/c;\r\nvx=(vx-(lx*.1))*cf;\r\nvy=(vy-(ly*.1))*cf;\r\nlx=lx+vx;ly=ly+vy;\r\nnx=lx*.001;ny=ly*.001;\r\ns=abs(nx*ny)","c=f;f=0;\r\nvx=vx+rand(600)-300;vy=vy+rand(600)-300"},
  {IDS_SPIROSTAR,"n=20;t=0;f=0;c=200;mn=10;dv=2;dn=0","r=if(b,0,((i*dv)*3.14159*128)+(t/2));\r\nx=cos(r)*sz;\r\ny=sin(r)*sz;","f=f+1;t=(f*3.1415*2)/c;\r\nsz=abs(sin(t-3.1415));\r\ndv=if(below(n,12),(n/2)-1,\r\n    if(equal(12,n),3,\r\n    if(equal(14,n),6,\r\n    if(below(n,20),2,4))))","bb = bb + 1;\r\nbeatdiv = 8;\r\nc=if(equal(bb%beatdiv,0),f,c);\r\nf=if(equal(bb%beatdiv,0),0,f);\r\ng=if(equal(bb%beatdiv,0),g+1,g);\r\nn=if(equal(bb%beatdiv,0),(abs((g%17)-8) *2)+4,n);"},
  {IDS_EXPLODING_DAISY,"n = 380 + rand(200) ; k = 0.0; l = 0.0; m = ( rand( 10 ) + 2 ) * .5; c = 0; f = 0","r=(i*3.14159*2)+(a * 3.1415);\r\nd=sin(r*m)*.3;\r\nx=cos(k+r)*d*2;y=(  (sin(k-r)*d) + ( sin(l*(i-.5) ) ) ) * .7;\r\nred=abs(x);\r\ngreen=abs(y);\r\nblue=d","a = a + 0.002 ; k = k + 0.04 ; l = l + 0.03","bb = bb + 1;\r\nbeatdiv = 16;\r\nn=if(equal(bb%beatdiv,0),380 + rand(200),n);\r\nt=if(equal(bb%beatdiv,0),0.0,t);\r\na=if(equal(bb%beatdiv,0),0.0,a);\r\nk=if(equal(bb%beatdiv,0),0.0,k);\r\nl=if(equal(bb%beatdiv,0),0.0,l);\r\nm=if(equal(bb%beatdiv,0),(( rand( 100  ) + 2 ) * .1) + 2,m);"},
  {IDS_SWIRLIE_DOTS,"n=45;t=rand(100);u=rand(100)","di = ( i - .5) * 2;\r\nx = di;sin(u*di) * .4;\r\ny = cos(u*di) * .6;\r\nx = x + ( cos(t) * .05 );\r\ny = y + ( sin(t) * .05 );","t = t + .15; u = u + .05","bb = bb + 1;\r\nbeatdiv = 16;\r\nn = if(equal(bb%beatdiv,0),30 + rand( 30 ),n);"},
  {IDS_SWEEP,"n=180;lsv=100;sv=200;ssv=200;c=200;f=0","sv=(sv*abs(cos(lsv)))+(lsv*abs(cos(sv)));\r\nfv=fv+(sin(sv)*dv);\r\nd=i; r=t+(fv * sin(t) * .3)*3.14159*4;\r\nx=cos(r)*d;\r\ny=sin(r)*d;\r\nred=i;\r\ngreen=abs(sin(r))-(red*.15);\r\nblue=fv","f=f+1;t=(f*2*3.1415)/c;\r\nlsv=slsv;sv=ssv;fv=0","bb = bb + 1;\r\nbeatdiv = 8;\r\nc=if(equal(bb%beatdiv,0),f,c);\r\nf=if(equal(bb%beatdiv,0),0,f);\r\ndv=if(equal(bb%beatdiv,0),((rand(100)*.01) * .1) + .02,dv);\r\nn=if(equal(bb%beatdiv,0),80+rand(100),n);\r\nssv=if(equal(bb%beatdiv,0),rand(200)+100,ssv);\r\nslsv=if(equal(bb%beatdiv,0),rand(200)+100,slsv);"},
  {IDS_WHIPLASH_SPIRAL,"n=80;c=200;f=0","d=i;\r\nr=t+i*3.14159*4;\r\nsdt=sin(dt+(i*3.1415*2));\r\ncdt=cos(dt+(i*3.1415*2));\r\nx=(cos(r)*d) + (sdt * .6 * sin(t) );\r\ny=(sin(r)*d) + ( cdt *.6 * sin(t) );\r\nblue=abs(x);\r\ngreen=abs(y);\r\nred=cos(dt*4)","t=t-0.05;f=f+1;dt=(f*2*3.1415)/c","bb = bb + 1;\r\nbeatdiv = 8;\r\nc=if(equal(bb%beatdiv,0),f,c);\r\nf=if(equal(bb%beatdiv,0),0,f);"},
#endif
};

static C_THISCLASS *g_this;
BOOL CALLBACK C_THISCLASS::g_DlgProc(HWND hwndDlg, UINT uMsg, WPARAM wParam,LPARAM lParam)
{
  static int isstart;
	switch (uMsg)
	{
		case WM_INITDIALOG:
      isstart=1;
#if 0//syntax highlighting
      SendDlgItemMessage(hwndDlg,IDC_EDIT1,EM_SETEVENTMASK,0,ENM_CHANGE);
      SendDlgItemMessage(hwndDlg,IDC_EDIT2,EM_SETEVENTMASK,0,ENM_CHANGE);
      SendDlgItemMessage(hwndDlg,IDC_EDIT3,EM_SETEVENTMASK,0,ENM_CHANGE);
      SendDlgItemMessage(hwndDlg,IDC_EDIT4,EM_SETEVENTMASK,0,ENM_CHANGE);
#endif
      SetDlgItemInt(hwndDlg,IDC_NUMCOL,g_this->num_colors,FALSE);
      SetDlgItemText(hwndDlg,IDC_EDIT1,g_this->effect_exp[0].get());
      SetDlgItemText(hwndDlg,IDC_EDIT2,g_this->effect_exp[1].get());
      SetDlgItemText(hwndDlg,IDC_EDIT3,g_this->effect_exp[2].get());
      SetDlgItemText(hwndDlg,IDC_EDIT4,g_this->effect_exp[3].get());

#if 0//syntax highlighting
      doAVSEvalHighLight(hwndDlg,IDC_EDIT1,g_this->effect_exp[0].get());
      doAVSEvalHighLight(hwndDlg,IDC_EDIT2,g_this->effect_exp[1].get());
      doAVSEvalHighLight(hwndDlg,IDC_EDIT3,g_this->effect_exp[2].get());
      doAVSEvalHighLight(hwndDlg,IDC_EDIT4,g_this->effect_exp[3].get());
#endif

      CheckDlgButton(hwndDlg,g_this->mode?IDC_LINES:IDC_DOT,BST_CHECKED);
      if ((g_this->which_ch&3)==0)
        CheckDlgButton(hwndDlg,IDC_LEFTCH,BST_CHECKED);
      else if ((g_this->which_ch&3)==1)
        CheckDlgButton(hwndDlg,IDC_RIGHTCH,BST_CHECKED);
      else
        CheckDlgButton(hwndDlg,IDC_MIDCH,BST_CHECKED);
      if (g_this->which_ch&4)
        CheckDlgButton(hwndDlg,IDC_SPEC,BST_CHECKED);
      else
        CheckDlgButton(hwndDlg,IDC_WAVE,BST_CHECKED);

      isstart=0;
    return 1;
		case WM_DRAWITEM:
		{
			DRAWITEMSTRUCT *di=(DRAWITEMSTRUCT *)lParam;
			if (di->CtlID == IDC_DEFCOL && g_this->num_colors>0)
			{
      	int x;
        int w=di->rcItem.right-di->rcItem.left;
        int l=0,nl;
        for (x = 0; x < g_this->num_colors; x ++)
        {
          int color=g_this->colors[x];
          nl = (w*(x+1))/g_this->num_colors;
          color = ((color>>16)&0xff)|(color&0xff00)|((color<<16)&0xff0000);

	        HPEN hPen,hOldPen;
	        HBRUSH hBrush,hOldBrush;
	        LOGBRUSH lb={(COLORREF)BS_SOLID,(COLORREF)color,(COLORREF)0};
	        hPen = (HPEN)CreatePen(PS_SOLID,0,color);
	        hBrush = CreateBrushIndirect(&lb);
	        hOldPen=(HPEN)SelectObject(di->hDC,hPen);
	        hOldBrush=(HBRUSH)SelectObject(di->hDC,hBrush);
	        Rectangle(di->hDC,di->rcItem.left+l,di->rcItem.top,di->rcItem.left+nl,di->rcItem.bottom);
	        SelectObject(di->hDC,hOldPen);
	        SelectObject(di->hDC,hOldBrush);
	        DeleteObject(hBrush);
	        DeleteObject(hPen);
          l=nl;
			  }
      }
	  }
		return 0;
    case WM_COMMAND:
      if (!isstart)
      {
        if ((LOWORD(wParam) == IDC_EDIT1||LOWORD(wParam) == IDC_EDIT2||LOWORD(wParam) == IDC_EDIT3||LOWORD(wParam) == IDC_EDIT4) && HIWORD(wParam) == EN_CHANGE)
        {
          EnterCriticalSection(&g_this->rcs);
          g_this->effect_exp[0].get_from_dlgitem(hwndDlg,IDC_EDIT1);
          g_this->effect_exp[1].get_from_dlgitem(hwndDlg,IDC_EDIT2);
          g_this->effect_exp[2].get_from_dlgitem(hwndDlg,IDC_EDIT3);
          g_this->effect_exp[3].get_from_dlgitem(hwndDlg,IDC_EDIT4);
          g_this->need_recompile=1;
				  if (LOWORD(wParam) == IDC_EDIT4) g_this->inited = 0;
          LeaveCriticalSection(&g_this->rcs);
#if 0//syntax highlighting
          if (LOWORD(wParam) == IDC_EDIT1)
            doAVSEvalHighLight(hwndDlg,IDC_EDIT1,g_this->effect_exp[0].get());
          if (LOWORD(wParam) == IDC_EDIT2)
            doAVSEvalHighLight(hwndDlg,IDC_EDIT2,g_this->effect_exp[1].get());
          if (LOWORD(wParam) == IDC_EDIT3)
            doAVSEvalHighLight(hwndDlg,IDC_EDIT3,g_this->effect_exp[2].get());
          if (LOWORD(wParam) == IDC_EDIT4)
            doAVSEvalHighLight(hwndDlg,IDC_EDIT4,g_this->effect_exp[3].get());
#endif
        }
        if (LOWORD(wParam) == IDC_DOT || LOWORD(wParam) == IDC_LINES)
        {
          g_this->mode=IsDlgButtonChecked(hwndDlg,IDC_LINES)?1:0;
        }
        if (LOWORD(wParam) == IDC_WAVE || LOWORD(wParam) == IDC_SPEC)
        {
          if (IsDlgButtonChecked(hwndDlg,IDC_WAVE)) g_this->which_ch&=~4;
          else g_this->which_ch|=4;
        }
        if (LOWORD(wParam) == IDC_LEFTCH || LOWORD(wParam) == IDC_RIGHTCH || LOWORD(wParam)==IDC_MIDCH)
        {
          g_this->which_ch&=~3;
          if (IsDlgButtonChecked(hwndDlg,IDC_LEFTCH));
          else if (IsDlgButtonChecked(hwndDlg,IDC_RIGHTCH)) g_this->which_ch|=1;
          else g_this->which_ch|=2;
        }
      }
      if (LOWORD(wParam) == IDC_BUTTON2) 
      {
/*
	char text[4096];
	WASABI_API_LNGSTRING_BUF(IDS_SUPERSCOPE,text,4096);
	int titlelen = lstrlen(text)+1;
	lstrcpyn(text+titlelen,GetTextResource(IDR_SUPERSCOPE),4095-titlelen);
*/
        char *text="Superscope\0"
                   "Superscope tutorial:\r\n\n"
//                 "But for now, here is the old text:\r\n"
                   "You can specify expressions that run on Init, Frame, and on Beat.\r\n"
                   "  'n' specifies the number of points to render (set this in Init, Beat, or Frame).\r\n"
                   "For the 'Per Point' expression (which happens 'n' times per frame), use:\r\n"
                   "  'x' and 'y' are the coordinates to draw to (-1..1)\r\n"
                   "  'i' is the position of the scope (0..1)\r\n"
                   "  'v' is the value at that point (-1..1).\r\n"
                   "  'b' is 1 if beat, 0 if not.\r\n"
                   "  'red', 'green' and 'blue' are all (0..1) and can be modified\r\n"
                   "  'linesize' can be set from 1.0 to 255.0\r\n"
                   "  'skip' can be set to >0 to skip drawing the current item\r\n"
                   "  'drawmode' can be set to > 0 for lines, <= 0 for points\r\n"
                   "  'w' and 'h' are the width and height of the screen, in pixels.\r\n"
//                 " Anybody want to send me better text to put here? Please :)\r\n"
          ;

        compilerfunctionlist(hwndDlg,text);
      }
      if (LOWORD(wParam) == IDC_BUTTON1)
      {
        RECT r;
        HMENU hMenu;
        MENUITEMINFO i={sizeof(i),};
        hMenu=CreatePopupMenu();
        int x;
        for (x = 0; x < sizeof(presets)/sizeof(presets[0]); x ++)
        {
            i.fMask=MIIM_TYPE|MIIM_DATA|MIIM_ID;
            i.fType=MFT_STRING;
            i.wID = x+16;
            i.dwTypeData=WASABI_API_LNGSTRING(presets[x].name);
            i.cch=strlen(i.dwTypeData);
            InsertMenuItem(hMenu,x,TRUE,&i);
        }
        GetWindowRect(GetDlgItem(hwndDlg,IDC_BUTTON1),&r);
        x=TrackPopupMenu(hMenu,TPM_LEFTALIGN|TPM_TOPALIGN|TPM_RETURNCMD|TPM_RIGHTBUTTON|TPM_LEFTBUTTON|TPM_NONOTIFY,r.right,r.top,0,hwndDlg,NULL);
        if (x >= 16 && x < 16+sizeof(presets)/sizeof(presets[0]))
        {
          SetDlgItemText(hwndDlg,IDC_EDIT1,presets[x-16].point);
          SetDlgItemText(hwndDlg,IDC_EDIT2,presets[x-16].frame);
          SetDlgItemText(hwndDlg,IDC_EDIT3,presets[x-16].beat);
          SetDlgItemText(hwndDlg,IDC_EDIT4,presets[x-16].init);
          SendMessage(hwndDlg,WM_COMMAND,MAKEWPARAM(IDC_EDIT4,EN_CHANGE),0);
        }
        DestroyMenu(hMenu);
      }
      if (LOWORD(wParam) == IDC_NUMCOL)
      {
        int p;
        BOOL tr=FALSE;
        p=GetDlgItemInt(hwndDlg,IDC_NUMCOL,&tr,FALSE);
        if (tr)
        {
          if (p > 16) p = 16;
          g_this->num_colors=p;
          InvalidateRect(GetDlgItem(hwndDlg,IDC_DEFCOL),NULL,TRUE);
        }
      }
      if (LOWORD(wParam) == IDC_DEFCOL)
      {
        int wc=-1,w,h;
        POINT p;
        RECT r;
        GetCursorPos(&p);
        GetWindowRect(GetDlgItem(hwndDlg,IDC_DEFCOL),&r);
        p.x -= r.left;
        p.y -= r.top;
        w=r.right-r.left;
        h=r.bottom-r.top;
        if (p.x >= 0 && p.x < w  && p.y >= 0 && p.y < h)
        {
          wc = (p.x*g_this->num_colors)/w;
        }
        if (wc>=0) 
        {
          GR_SelectColor(hwndDlg,g_this->colors+wc);
          InvalidateRect(GetDlgItem(hwndDlg,IDC_DEFCOL),NULL,TRUE);            
        }
      }
    return 0;
  }
	return 0;
}


HWND C_THISCLASS::conf(HINSTANCE hInstance, HWND hwndParent)
{
	g_this = this;
	return WASABI_API_CREATEDIALOG(IDD_CFG_SSCOPE,hwndParent,g_DlgProc);
}