video_ntsc_pal.c

TI DSP 642 上面运行的图像处理程序, 用来做sobel边缘提取

/* ======================================================================== */
/*  Copyright 2003 by Wintech Digital System Technology Corp.               */
/*  All rights reserved. Property of Texas Instruments Incorporated.        */
/*  Restricted rights to use, duplicate or disclose this code are           */
/*  granted through contract.	                                            */														
/* ======================================================================== */

#include <std.h>

#include <tsk.h>  
#include <sem.h>   
#include <gio.h>

#include <csl_dat.h>
#include <csl_cache.h>
#include <csl.h>
#include <csl_edma.h>
#include <sys.h>
#include <log.h>

#include <fvid.h>
#include <edc.h>
#include <vport.h>
#include <vportcap.h>
#include <vportdis.h>
#include "saa7104.h"
#include "tvp5150a.h"    

#include "evmdm642.h"

#include "colorbar.h"
#include "evmdm642_vcapparams.h"
#include "evmdm642_vdisparams.h" 

#define _PROCESS;

extern Int EXTERNALHEAP;

FVID_Handle disChan; 
FVID_Handle capChan;
FVID_Frame *capFrameBuf=NULL;
FVID_Frame *disFrameBuf=NULL;    
        
Int numLinesDis=0 ;
Int numLinesCap=0;
Int numLines=0 ;   
Int numPixels =0;
Int capLinePitch=0 ;
Int disLinePitch=0 ;
      
unsigned char Y1[720*576];
unsigned char CB1[720*288];
unsigned char CR1[720*288];        

void myImageProcess();
void VidDisMode(Int displaymode);
/*
 * ======== main ========
 */
main()
{
    /******************************************************/
    /* open CSL DAT module for fast copy                  */
    /******************************************************/
    CSL_init();                                             
    CACHE_clean(CACHE_L2ALL, 0, 0);
    CACHE_setL2Mode(CACHE_256KCACHE);       
    CACHE_enableCaching(CACHE_EMIFA_CE00);
    CACHE_enableCaching(CACHE_EMIFA_CE01);
    DAT_open(DAT_CHAANY, DAT_PRI_LOW, DAT_OPEN_2D);
}

/*
 * ======== tskVideoCAPTURE ========
 * video CAPTURE function.
 */
void tskVideoCapture()
{
    Int status;

    Int frames = 0;

    numLinesDis = EVMDM642_vDisParamsChan.imgVSizeFld1;
    numLinesCap = EVMDM642_vCapParamsChan.fldYStop1 - EVMDM642_vCapParamsChan.fldYStrt1+1;
    numLines = (numLinesDis > numLinesCap) ? numLinesCap : numLinesDis;
   // char mLaplacian[3*3]={ -1,-1,-1, -1,9,-1,-1,-1,-1};

#ifdef _CAPTURE
      
     numPixels = EVMDM642_vCapParamsChan.fldXStop1 - EVMDM642_vCapParamsChan.fldXStrt1+1;
     capLinePitch = EVMDM642_vCapParamsChan.fldXStop1 - EVMDM642_vCapParamsChan.fldXStrt1+1;
     disLinePitch = EVMDM642_vDisParamsChan.imgHSizeFld1;    
#endif      
 
    numLines *= 2; /* both fields */
    /******************************************************/
    /* allocate both capture and display frame buffers    */
    /* in external heap memory                            */
    /******************************************************/
        EVMDM642_vCapParamsChan.segId = EXTERNALHEAP;
        EVMDM642_vDisParamsChan.segId = EXTERNALHEAP;
        EVMDM642_vDisParamsSAA7104.hI2C = EVMDM642_I2C_hI2C;
        EVMDM642_vCapParamsTVP5150A.hI2C = EVMDM642_I2C_hI2C;

    /******************************************************/
    /* initialization of capture driver                   */
    /******************************************************/
#ifdef _CAPTURE
    capChan = FVID_create("/VP1CAPTURE/A/1", 
            IOM_INPUT, &status, (Ptr)&EVMDM642_vCapParamsChan, NULL);
#endif          
    /******************************************************/
    /* initialization of display driver                   */
    /******************************************************/
    disChan = FVID_create("/VP2DISPLAY", IOM_OUTPUT, 
        &status, (Ptr)&EVMDM642_vDisParamsChan, NULL);
    /******************************************************/
    /* configure video encoder & decoder                  */
    /******************************************************/
    FVID_control(disChan, VPORT_CMD_EDC_BASE + EDC_CONFIG, 
        (Ptr)&EVMDM642_vDisParamsSAA7104);
#ifdef _CAPTURE
    FVID_control(capChan, VPORT_CMD_EDC_BASE + EDC_CONFIG, 
        (Ptr)&EVMDM642_vCapParamsTVP5150A);
  
#endif
    /******************************************************/
    /* start capture & display operation                  */    
    /******************************************************/
    FVID_control(disChan, VPORT_CMD_START, NULL);
#ifdef _CAPTURE
    FVID_control(capChan, VPORT_CMD_START, NULL);          
#endif  
   VidDisMode(1);     
    /********************************************************/
    /* request a frame buffer from display & capture driver */
    /********************************************************/
    FVID_alloc(disChan, &disFrameBuf);
#ifdef _CAPTURE
    FVID_alloc(capChan, &capFrameBuf);        
#endif
    frames ++;
    
    while(1) {/* loop forever */
   
#ifdef _CAPTURE        
       
#ifdef _PROCESS        
    	myImageProcess();  
              
#else    
        int i;    
        for(i = 0; i < numLines; i ++) {

          DAT_copy(capFrameBuf->frame.iFrm.y1 + i * capLinePitch, 
                     disFrameBuf->frame.iFrm.y1 + i * disLinePitch,
                     numPixels);
          DAT_copy(capFrameBuf->frame.iFrm.cb1 + i * (capLinePitch >> 1), 
                     disFrameBuf->frame.iFrm.cb1 + i * (disLinePitch >> 1),
                     numPixels>>1);
          DAT_copy(capFrameBuf->frame.iFrm.cr1 + i * (capLinePitch >> 1), 
                     disFrameBuf->frame.iFrm.cr1 + i * (disLinePitch >> 1),
                     numPixels>>1); 
        }
#endif           
   
        DAT_wait(DAT_XFRID_WAITALL);
        FVID_exchange(capChan, &capFrameBuf);
 
#else
        fillFrmBuf(&disFrameBuf->frame.iFrm, EVMDM642_vDisParamsChan.imgHSizeFld1,
            EVMDM642_vDisParamsChan.imgVSizeFld1  + 
            EVMDM642_vDisParamsChan.imgVSizeFld2, frames % 360);
#endif
        CACHE_clean(CACHE_L2ALL,NULL,NULL);
        FVID_exchange(disChan, &disFrameBuf);        
        frames ++;              
   }
}                                                              
  
/* ======================================================================== */
/*  TEXAS INSTRUMENTS, INC.                                                 */
/*                                                                          */
/*  NAME                                                                    */
/*      IMG_sobel                                                           */
/*                                                                          */
/*  REVISION DATE                                                           */
/*      22-Jan-2001                                                         */
/*                                                                          */
/*  USAGE                                                                   */
/*      This routine is C-callable and can be called as:                    */
/*                                                                          */
/*      void IMG_sobel                                                      */