image_vdp_3.c

在dsp ccs环境下实现图像边缘检测,完整的工程文件和具体算法的源程序实现.

/*
 *  Copyright 2003 by Texas Instruments Incorporated.
 *  All rights reserved. Property of Texas Instruments Incorporated.
 *  Restricted rights to use, duplicate or disclose this code are
 *  granted through contract.
 *  
 */
/* "@(#) DDK 1.10.00.23 07-02-03 (ddk-b12)" */
#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 <dm642.h>

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

/* heap IDs defined in the BIOS configuration file */
extern Int EXTERNALHEAP;
	Int status;
 	FVID_Handle capChan; 
    FVID_Handle disChan; 
    Int frames = 0;
    FVID_Frame *disFrameBuf;
    FVID_Frame *capFrameBuf;
    Int numLinesDis = 0;
    Int numLinesCap = 0;
    Int numLines = 0;
    Int numPixels = 0;
    Int capLinePitch = 0;
    Int disLinePitch = 0;
    
    void myImageProcess();
    void generateColorLine();
    int histgram[360];
    unsigned char Y1[720*600];
    unsigned char CB1[720*288];
    unsigned char CR1[720*288];
/*
 * ======== 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);

}

/*
 * ======== tskVideoLoopback ========
 * video loopback function.
 */
void tskVideoLoopback()
{
    
    
    numLinesDis = EVMDM642_vDisParamsChan.imgVSizeFld1;
    numLinesCap = EVMDM642_vCapParamsChan.fldYStop1 -
       EVMDM642_vCapParamsChan.fldYStrt1+1;

    
    numLines = (numLinesDis > numLinesCap) ? numLinesCap : numLinesDis;

#ifdef _LOOPBACK
   
    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 _LOOPBACK

#ifdef _VP2
    capChan = FVID_create("/VP2CAPTURE/A/1", 
            IOM_INPUT, &status, (Ptr)&EVMDM642_vCapParamsChan, NULL);
#else  
    capChan = FVID_create("/VP2CAPTURE/A/1", 
            IOM_INPUT, &status, (Ptr)&EVMDM642_vCapParamsChan, NULL);

#endif 
#endif 
       

          
    /******************************************************/
    /* initialization of display driver                   */
    /******************************************************/
    disChan = FVID_create("/VP1DISPLAY", IOM_OUTPUT, 
        &status, (Ptr)&EVMDM642_vDisParamsChan, NULL);

    
    /******************************************************/
    /* configure video encoder & decoder                  */
    /******************************************************/
    FVID_control(disChan, VPORT_CMD_EDC_BASE + EDC_CONFIG, 
        (Ptr)&EVMDM642_vDisParamsSAA7104);
#ifdef _LOOPBACK
    FVID_control(capChan, VPORT_CMD_EDC_BASE + EDC_CONFIG, 
        (Ptr)&EVMDM642_vCapParamsTVP5150A);
#endif
    //EVMDM642_rset(0x10, 0x20);
    //EVMDM642_rset(0x10, 0x08);
    //while(!(EVMDM642_rget(0x13) & 0x40));


    /******************************************************/
    /* start capture & display operation                  */    
    /******************************************************/
    FVID_control(disChan, VPORT_CMD_START, NULL);
#ifdef _LOOPBACK
    FVID_control(capChan, VPORT_CMD_START, NULL);
#endif    
    
    /********************************************************/
    /* request a frame buffer from display & capture driver */
    /********************************************************/
    FVID_alloc(disChan, &disFrameBuf);
#ifdef _LOOPBACK 
    FVID_alloc(capChan, &capFrameBuf);
#endif
    frames ++;


while(1)
{/* loop forever */
#ifdef _LOOPBACK

	#ifdef _PROCESS  
         CACHE_clean(CACHE_L2ALL, 0, 0);
  
         myImageProcess();
      
	#else
        Int i;
    /*   copy data from capture buffer to display buffer 
      **************************************************/

       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   

        FVID_exchange(capChan, &capFrameBuf);

#else
        fillFrmBuf(&disFrameBuf->frame.iFrm, EVMDM642_vDisParamsChan.imgHSizeFld1,
          EVMDM642_vDisParamsChan.imgVSizeFld1 
            + EVMDM642_vDisParamsChan.imgVSizeFld2, frames % 360);
#endif
        FVID_exchange(disChan, &disFrameBuf);
        
        frames ++;              
   }
}

                                                                    
                                                                                                                                                                                                                          
void myImageProcess()
{ 
      Int i=0;
      IMG_sobel(capFrameBuf->frame.iFrm.y1,Y1,720,numLines);
      IMG_sobel(capFrameBuf->frame.iFrm.cb1,CB1,720/2,numLines);
      IMG_sobel(capFrameBuf->frame.iFrm.cr1,CR1,720/2,numLines);

    /*  DAT_copy2d( DAT_2D2D, capFrameBuf->frame.iFrm.y1 + i * capLinePitch, 
                   disFrameBuf->frame.iFrm.y1 + i * disLinePitch,
                   numPixels>>1,numLines,numPixels);
      DAT_copy2d( DAT_2D2D, capFrameBuf->frame.iFrm.cb1 + i * (capLinePitch >> 1), 
                   disFrameBuf->frame.iFrm.cb1 + i * (disLinePitch >> 1),
                   numPixels>>2,numLines,numPixels>>1);
      DAT_copy2d( DAT_2D2D, capFrameBuf->frame.iFrm.cr1 + i * (capLinePitch >> 1), 
                   disFrameBuf->frame.iFrm.cr1 + i * (disLinePitch >> 1),
                   numPixels>>2,numLines,numPixels>>1);
   */        
    for(i = 0; i < numLines; i ++)
       {
      DAT_copy(capFrameBuf->frame.iFrm.y1 + i * capLinePitch, 
                   disFrameBuf->frame.iFrm.y1 + i * disLinePitch,
                   numPixels>>1);
      DAT_copy( capFrameBuf->frame.iFrm.cb1 + i * (capLinePitch >> 1), 
                   disFrameBuf->frame.iFrm.cb1 + i * (disLinePitch >> 1),
                   numPixels>>2);
      DAT_copy( capFrameBuf->frame.iFrm.cr1 + i * (capLinePitch >> 1), 
                   disFrameBuf->frame.iFrm.cr1 + i * (disLinePitch >> 1),
                   numPixels>>2);
       }
    
    for(i = 0; i < numLines; i ++)
       {
    DAT_copy(Y1+ i * capLinePitch,
    		 disFrameBuf->frame.iFrm.y1 + i * disLinePitch+360,
             numPixels>>1);
    DAT_copy(CB1+ i * capLinePitch, disFrameBuf->frame.iFrm.cb1 + i * (disLinePitch >> 1)+(disLinePitch >> 2),
               numPixels>>2);
    DAT_copy(CR1+ i * capLinePitch, 
              disFrameBuf->frame.iFrm.cr1 + i * (disLinePitch >> 1)+(disLinePitch >> 2),
               numPixels>>2);  
       }
    /*DAT_copy2d(DAT_2D2D,Y1+ i * capLinePitch, disFrameBuf->frame.iFrm.y1 + i * disLinePitch+360,
               numPixels>>1,numLines, numPixels);
    DAT_copy2d(DAT_2D2D,CB1+ i * capLinePitch, disFrameBuf->frame.iFrm.cb1 + i * (disLinePitch >> 1)+(disLinePitch >> 2),
               numPixels>>2,numLines, numPixels>>1);
    DAT_copy2d(DAT_2D2D,CR1+ i * capLinePitch, disFrameBuf->frame.iFrm.cr1 + i * (disLinePitch >> 1)+(disLinePitch >> 2),
               numPixels>>2,numLines, numPixels>>1);               
               */
}