131
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1 /* { dg-options "-O3 -floop-nest-optimize" } */
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111
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2
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3 typedef unsigned char uint8_t;
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4
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5 void border_mirror(uint8_t *outer_img, int w, int h, int rb, int border)
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6 {
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7 uint8_t *img = outer_img + border * rb + border;
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8 int x, y;
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9
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10 for (y = -border; y < 0; y++) {
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11 for (x = -border; x < 0; x++)
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12 img[y*rb + x] = img[(-y)*rb + (-x)];
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13
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14 for (x = 0; x < w; x++)
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15 img[y*rb + x] = img[(-y)*rb + x];
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16 }
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17 }
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18
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19 void border_mirror_480(uint8_t *outer_img)
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20 {
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21 border_mirror(outer_img, 640, 480, 640 + 16*2, 16);
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22 }
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