Subversion Repositories openrisc

/* { dg-options "-O3 -floop-interchange" } */

typedef unsigned char uint8_t;

void border_mirror(uint8_t *outer_img, int w, int h, int rb, int border)

{

  uint8_t *img = outer_img + border * rb + border;

  int x, y;

  for (y = -border; y < 0; y++) {

    for (x = -border; x < 0; x++)

      img[y*rb + x] = img[(-y)*rb + (-x)];

    for (x = 0; x < w; x++)

      img[y*rb + x] = img[(-y)*rb + x];

  }

}

void border_mirror_480(uint8_t *outer_img)

{

  border_mirror(outer_img, 640, 480, 640 + 16*2, 16);

}