/*----------------------------------------------------------------------------*\
 | Copyright (C) 2009 - Rafael de O. Lopes Gonçalves and André Shoji Asato    |
 | 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.                                                            |
 |                                                                            |
 | 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, write to the Free Software                |
 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.|
\*----------------------------------------------------------------------------*/

#ifndef VISOCOR_H
#define VISOCOR_H

#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <stdarg.h>

#include <compiz-core.h>
#include <compiz-mousepoll.h>
#include "visocor_options.h"






#define  PLUGIN_NAME "VISOCOR"


extern int visocorDisplayPrivateIndex;
extern int visocorCorePrivateIndex;


#define GET_VISOCOR_CORE(c) \
    ((VISOCORCore *) (c)->base.privates[visocorCorePrivateIndex].ptr)
#define VISOCOR_CORE(c) \
    VISOCORCore *vc = GET_VISOCOR_CORE (c)
#define GET_VISOCOR_DISPLAY(d) \
    ((VISOCORDisplay *) (d)->base.privates[visocorDisplayPrivateIndex].ptr)
#define VISOCOR_DISPLAY(d) \
    VISOCORDisplay *vd = GET_VISOCOR_DISPLAY (d)
#define GET_VISOCOR_SCREEN(s, vd) \
    ((VISOCORScreen *) (s)->base.privates[(vd)->screenPrivateIndex].ptr)
#define VISOCOR_SCREEN(s) \
    VISOCORScreen *vs = GET_VISOCOR_SCREEN (s, GET_VISOCOR_DISPLAY (s->display))
#define GET_VISOCOR_WINDOW(w, vs) \
    ((VISOCORWindow *) (w)->base.privates[(vs)->windowPrivateIndex].ptr)
#define VISOCOR_WINDOW(w) \
    VISOCORWindow *vw = GET_VISOCOR_WINDOW  (w, \
            GET_VISOCOR_SCREEN  (w->screen, \
                GET_VISOCOR_DISPLAY (w->screen->display)))




typedef struct _VISOCORCore {
	ObjectAddProc objectAdd;
} VISOCORCore;

typedef struct _VISOCORDisplay {
	int screenPrivateIndex;
	MousePollFunc *mousepollFunc;
} VISOCORDisplay;

typedef struct _VISOCORSCreen {
	int windowPrivateIndex;

	PreparePaintScreenProc preparePaintScreen;
	DonePaintScreenProc donePaintScreen;
	DrawWindowTextureProc drawWindowTexture;


	int filterIntensity;
	float ir;
	float ig;
	float ib;

	int visocorFunctions[2][MAX_FRAGMENT_FUNCTIONS];

	Bool isMousepollActive;
	int mousePosX;
	int mousePosY;
	float mouse_pixel[3];

	PositionPollingHandle pollHandle;
} VISOCORScreen;


typedef enum _VisocorWindowState{
	FILTER = 0,
	SLICE = 1 ,
	OFF
}VisocorWindowState;


typedef struct _VISOCORWindow {
	VisocorWindowState lastState;
	VisocorWindowState currentState;

} VISOCORWindow;


/* ********************************************************************************************** */
/*visocor.c*/
void visocorPrintf(CompLogLevel level,const char *fmt, ...);

/**
 * Muda o estado da janela.
 */
void visocorToggleWindowToState(CompWindow * w,  VisocorWindowState state);


void visocorDamageAllWindows(CompScreen * s);


CompScreen * visocorFindScreen(CompDisplay * d, CompOption * option, int nOption);

CompWindow * visocorFindWindow(CompDisplay * d, CompOption * option, int nOption);

/* ********************************************************************************************** */
/*filter.c*/
#define N_FILTER_VARIATIONS 32

Bool visocorToggleFilter(CompDisplay * d, CompAction * action,
		CompActionState state, CompOption * option, int nOption);

Bool visocorDecreaseFilter(CompDisplay * d, CompAction * action,
		CompActionState state, CompOption * option, int nOption);

Bool visocorIncreaseFilter(CompDisplay * d, CompAction * action,
		CompActionState state, CompOption * option, int nOption);


int getVisocorFilterFragmentFunction( CompScreen * s, CompTexture * texture,
		int param);

void visocorResetFilter(VISOCORScreen * vs);

/* ********************************************************************************************** */
/*slicer.c*/
#define MAX_DISTANCE_R 6.666
#define MAX_DISTANCE_G 6.666
#define MAX_DISTANCE_B 2

void visocorMousepollPositionUpdate(CompScreen *s, int x, int y);



Bool visocorMousepollClickKeyInitiateSlice(CompDisplay *d,
		CompAction *action, CompActionState state, CompOption *option,
		int nOption);



Bool visocorMousepollClickKeyTerminateSlice(CompDisplay *d,
		CompAction *action, CompActionState state, CompOption *option,
		int nOption);

int getVisocorSlicerFragmentFunction(CompScreen * s, CompTexture * texture,
		int param);


/* ********************************************************************************************** */
#endif