#define N1 4096 #define N2 4096 #define WINDOW_SIZE 16 void mpeg4_cpu(float result[N1][N2], float prev[N2+WINDOW_SIZE][N2+WINDOW_SIZE], float curr[WINDOW_SIZE*WINDOW_SIZE]) { unsigned int i; unsigned int j; unsigned int k; unsigned int l; for ( i = 0; i < N1; ++i) for ( j = 0; j < N2; ++j) for ( k = 0; k < WINDOW_SIZE; ++k) for ( l = 0; l < WINDOW_SIZE; ++l) result[i][j] += prev[i+k][j+l] * curr[k*WINDOW_SIZE+l]; }