23 lines
506 B
C
23 lines
506 B
C
/* { dg-options "-O3 -floop-interchange" } */
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typedef unsigned char uint8_t;
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void border_mirror(uint8_t *outer_img, int w, int h, int rb, int border)
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{
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uint8_t *img = outer_img + border * rb + border;
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int x, y;
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for (y = -border; y < 0; y++) {
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for (x = -border; x < 0; x++)
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img[y*rb + x] = img[(-y)*rb + (-x)];
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for (x = 0; x < w; x++)
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img[y*rb + x] = img[(-y)*rb + x];
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}
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}
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void border_mirror_480(uint8_t *outer_img)
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{
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border_mirror(outer_img, 640, 480, 640 + 16*2, 16);
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}
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