winamp/Src/Plugins/Visualization/vis_avs/r_invert.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.

*/
#include <windows.h>
#include <stdlib.h>
#include <vfw.h>
#include <commctrl.h>
#include "resource.h"
#include "r_defs.h"
#include "../Agave/Language/api_language.h"

#ifndef LASER

#define MOD_NAME "Trans / Invert"
#define C_THISCLASS C_InvertClass

class C_THISCLASS : public C_RBASE {
	protected:
	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_TRANS_INVERT,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);
    int enabled;
	};


static C_THISCLASS *g_ConfigThis; // global configuration dialog pointer 
static HINSTANCE g_hDllInstance; // global DLL instance pointer (not needed in this example, but could be useful)


C_THISCLASS::~C_THISCLASS() 
{
}

// configuration read/write

C_THISCLASS::C_THISCLASS() // set up default configuration
{
  enabled=1;
}

#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) // read configuration of max length "len" from data.
{
	int pos=0;
	if (len-pos >= 4) { enabled=GET_INT(); pos+=4; }
}

#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
int  C_THISCLASS::save_config(unsigned char *data) // write configuration to data, return length. config data should not exceed 64k.
{
  int pos=0;
  PUT_INT(enabled); pos+=4;
  return pos;
}

// render function
// render should return 0 if it only used framebuffer, or 1 if the new output data is in fbout. this is
// used when you want to do something that you'd otherwise need to make a copy of the framebuffer.
// w and h are the width and height of the screen, in pixels.
// isBeat is 1 if a beat has been detected.
// visdata is in the format of [spectrum:0,wave:1][channel][band].

int C_THISCLASS::render(char visdata[2][2][576], int isBeat, int *framebuffer, int *fbout, int w, int h)
{
  int i=w*h;
  int *p=framebuffer;

  if (isBeat&0x80000000) return 0;
  if (!enabled) return 0;
  
#ifndef NO_MMX
    int a[2]={0xffffff,0xffffff};
    __asm
    {
      mov ecx, i
      shr ecx, 3
      movq mm0, [a]
      mov edi, p
      align 16
_mmx_invert_loop:
      movq mm1, [edi]
      movq mm2, [edi+8]
      pxor mm1, mm0
      movq mm3, [edi+16]
      pxor mm2, mm0
      movq mm4, [edi+24]
      pxor mm3, mm0
      movq [edi], mm1
      pxor mm4, mm0
      movq [edi+8], mm2
      movq [edi+16], mm3
      movq [edi+24], mm4
      add edi, 32
      dec ecx
      jnz _mmx_invert_loop
      mov ecx, i
      shr ecx, 1
      and ecx, 3
      jz _mmx_invert_noendloop
_mmx_invert_endloop:
      movq mm1, [edi]
      pxor mm1, mm0
      movq [edi], mm1
      add edi, 8
      dec ecx
      jnz _mmx_invert_endloop

_mmx_invert_noendloop:
      emms
    }
#else 
  while (i--) *p++ = 0xFFFFFF^*p;
#endif
  return 0;
}


// configuration dialog stuff


static BOOL CALLBACK g_DlgProc(HWND hwndDlg, UINT uMsg, WPARAM wParam,LPARAM lParam)
{
switch (uMsg)
	{
	case WM_INITDIALOG:
        if (g_ConfigThis->enabled) CheckDlgButton(hwndDlg,IDC_CHECK1,BST_CHECKED);
		return 1;
	case WM_COMMAND:
      if (LOWORD(wParam) == IDC_CHECK1)
        g_ConfigThis->enabled=IsDlgButtonChecked(hwndDlg,IDC_CHECK1)?1:0;
	}
return 0;
}


HWND C_THISCLASS::conf(HINSTANCE hInstance, HWND hwndParent) // return NULL if no config dialog possible
{
	g_ConfigThis = this;
	return WASABI_API_CREATEDIALOG(IDD_CFG_INVERT,hwndParent,g_DlgProc);
}



// export stuff

C_RBASE *R_Invert(char *desc) // creates a new effect object if desc is NULL, otherwise fills in desc with description
{
	if (desc) { strcpy(desc,MOD_NAME); return NULL; }
	return (C_RBASE *) new C_THISCLASS();
}

#else
C_RBASE *R_Invert(char *desc) // creates a new effect object if desc is NULL, otherwise fills in desc with description
{ return NULL; }
#endif