各位，现在有个小算法，我想大家用自己的ARM平台，帮我测试下各自平台下的性能！
如果谁测试出来，请附上ARM主频和型号，及对应消耗的总时间！谢谢！
#define COUNTS_PER_SECOND (XPAR_CPU_CORTEXA9_CORE_CLOCK_FREQ_HZ / 64)
#define BOUND(x, mn, mx) ((x) < (mn) ? (mn) : ((x) > (mx) ? (mx) : (x)))
u8 image[1024][2048] = {0};
void FastKirschDT(u8 * lpDIBBits, u32 lWidth, u32 lHeight);
int main()
{
XTime tEnd, tCur;
u32 tUsed;
printf("time elapsed caculating");
XTime_GetTime(&tCur);
usleep(1000);
//FastKirschDT(image, 2048, 1024);
XTime_GetTime(&tEnd);
tUsed = ((tEnd-tCur)*1000000)/(COUNTS_PER_SECOND);
printf("time elapsed is %d us\r\n",tUsed);while(1);//等待
return 0;
}
//快速kirsch两方向运算
void FastKirschDT(u8 * lpDIBBits, u32 lWidth, u32 lHeight)
{
int GMax,GrayValue1,GrayValue2;
u8 g[9];
int lOffset;
u8 imagenew[1024][2048];
int offseti;
u32 k,i,j;
for ( k = 0; k < 10; k++ )
{
offseti= lWidth;
for( i = 1; i < lHeight - 1; i++)
{
for(j = 1; j < lWidth - 1; j++)
{
GMax = 0;
lOffset = (offseti-lWidth + j - 1);
g[0] = *(lpDIBBits + lOffset++);
g[1] = *(lpDIBBits + lOffset++);
g[2] = *(lpDIBBits + lOffset);
lOffset = (offseti + j - 1);
g[3] = *(lpDIBBits + lOffset++);
lOffset++;
//g[4]=0;
g[5] = *(lpDIBBits + lOffset);
lOffset = (offseti + lWidth + j - 1);
g[6] = *(lpDIBBits + lOffset++);
g[7] = *(lpDIBBits + lOffset++);
g[8] = *(lpDIBBits + lOffset);
GrayValue1 = 5*(g[0]+g[3]+g[6])-3*(g[1]+g[2]+g[5]+g[7]+g[8]);
GrayValue2 = GrayValue1+8*(g[1]+g[2]-g[3]-g[6]);
if(GrayValue1 < 0)
GrayValue1 = -GrayValue1;
if(GrayValue2 < 0)
GrayValue2 = -GrayValue2;
GMax = GrayValue1 > GrayValue2?GrayValue1:GrayValue2;
lOffset = (offseti + j );
imagenew[i][j] = BOUND(GMax, 0, 255);
}
offseti+=lWidth;
}
} |
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