xdbg.cpp

C++封装的视频采集代码

#include "config.h"
#include "xdbg.h"
#include <string.h>

namespace oxsemi {
namespace debug {

const char* get_basename__(const char* file)
{
    size_t len = strlen(file);
    const char* p = file + len - 1;
    for(; p > file && *p != '\\' && *p != '/'; --p)
        ;
    return  p > file ? p+1 : file;
}

/**
 * This routine displays (with colours) a dump of the given area of memory,
 * listing 16 bytes per line, on the left as two digit hex numbers, and then
 * on the right as ASCII characters, with unprintable characters displayed
 * as dots (and in a different colour).
 *
 * @param address An unsigned char * - pointing to the first byte of data
 *  to display.
 * @param length An unsigned int - the number of bytes to display.
 */
 
#if (defined(_DEBUG) || !defined(OXSEMI_PRODUCTION))

void TraceMemory(const unsigned char * address, unsigned int length)
{
    TRACE(
        "$CDisplaying %d(0x%X) bytes from address %08X:\n",
        length, length, address);
        
    unsigned int skipAtStart = (((unsigned int)address) & 15);
    address = (const unsigned char *) (((unsigned int)address) & ~15);
        
    for (unsigned int i=0; i<skipAtStart+length; i+=16)
    {
        TRACE("$G%08X$n  ", i);
        
        unsigned int j;
        for (j=0; j<16; j++)
        {
            unsigned int k=i+j;
            bool show = k >= skipAtStart && k < skipAtStart+length;
            unsigned char c = address[k];
            
            if (show)
            {
                TRACE("%s%02X$n ", c==0 ? "$n":"$W", c);
            }
            else
            {
                TRACE("   ");
            }
        }

        TRACE("  ");
        
        for (j=0; j<16; j++)
        {
            unsigned int k=i+j;
            bool show = k >= skipAtStart && k < skipAtStart+length;
            unsigned char c = address[k];
            
            if (show)
            {
                TRACE(
                    "%s%c$n",
                    (c>=32 && c<127) ?
                        "$Y" : "$R", (c>=32 && c<127) ? c : '.');
            }
            else
            {
                TRACE(" ");
            }
        }
        
        TRACE("\n");
    }
}

#endif

}; // namespace debug 
}; // namespace oxsemi


#include "xdbg_unix.cpp"