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/*
 *  File: postproc.cpp
 * 
 *  Copyright (c) 2006 Beijing SimpLight Nanoelectornics, Ltd.
 *  All rights reserved.
 *
 *  Redistribution and use in source and binary forms, with or without modification, 
 *  are permitted provided that the following conditions are met:
 *
 *  1.Redistributions of source code must retain the above copyright notice, 
 *    this list of conditions and the following disclaimer. 
 *  2.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. 
 *
 *  THIS SOFTWARE IS PROVIDED BY THE FREEBSD PROJECT ``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 FREEBSD PROJECT 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 "postproc.h"

#if _MULTI_THREAD_BUILD
pthread_mutex_t mutex_pp_ctrl = PTHREAD_MUTEX_INITIALIZER;
#endif

PostProc::PostProc(SL1System *sys,Memory* mem, ADDR base) :  SL1Device(sys, base){
  _lcd = new LCD(memory(), _start);
  _stop = TRUE;
  _frameBufAddr = FRAMEBUF_BASE;
  _lcdHeight = DEFAULT_HEIGHT;
  _lcdWidth = DEFAULT_WIDTH;
  cleanbuf(_lcd->defaultVal());
}

PostProc::~PostProc() {
  delete _lcd;
  _stop = TRUE;
  usleep(5000); //wait all thread stop  
}

void PostProc::cleanbuf(UINT val)
{
  INT i,j;
  ADDR addr = FRAMEBUF_BASE;
  for(i=0;i<MAX_HEIGHT;i++)
    for(j=0;j<MAX_WIDTH;j++)
    {
      writeBufWord(addr,val);
      addr += WORD_BYTE;
    }
      
}


void PostProc::reset() {
  
  UINT result = 0;
  _stop = TRUE;
  usleep(5000); //wait all thread stop  
  configLCD();
  
  _cyc = 0;
  _stop = FALSE;
  buf2lcd();
  
  lcd()->start();
  system()->addSchedule(this, PP_CHECK_LCD_CYC);
}

void PostProc::configLCD() {
  //lcd()->end();
  lcd()->init(_lcdHeight, _lcdWidth);
}

BOOL PostProc::turnOn() {
  if(stop()==TRUE) {
    start();
    return TRUE;
  }
  return FALSE;
}

BOOL PostProc::turnOff() {
  if(stop()==FALSE){
    end();
    return TRUE;
  }
  return FALSE;
}

void PostProc::start() {
  reset();
}

void PostProc::end() {
  stop(TRUE);
  removeSchedule();
  lcd()->end();
}


BOOL PostProc::stop() {
  LOCK_PP_CRTL
  BOOL b = _stop;
  UNLOCK_PP_CRTL
  return b;   
}

void PostProc::tick() {
  system()->addSchedule(this, PP_CHECK_LCD_CYC);
  buf2lcd();
}

void PostProc::readHook(ADDR addr) {
  
}

void PostProc::writeHook(ADDR addr) {

}

void PostProc::removeSchedule(void) {
  system()->removeSchedule(this);
}

void PostProc::buf2lcd() {
  if(lcd()->isReady()==false) {
    ADDR addr = getFrameBufAddr();
    INT i, j;

    LOCK_PP_CRTL
    for(i = 0; i < _lcdHeight; i++)
        {
      for(j = 0; j < _lcdWidth; j++)
            {
        lcd()->output(readBufWord(addr),i,j);
        addr += WORD_BYTE;
      }
    }

    lcd()->setReady(true);
    UNLOCK_PP_CRTL

  }
    
}