472 |
int width2 = width / 2; |
int width2 = width / 2; |
473 |
int height2 = height / 2; |
int height2 = height / 2; |
474 |
int y; |
int y; |
475 |
|
const int with_uv = (u_src!=0 && v_src!=0); |
476 |
|
|
477 |
if (vflip) { |
if (vflip) { |
478 |
y_src += (height - 1) * y_src_stride; |
y_src += (height - 1) * y_src_stride; |
479 |
|
if (with_uv) { |
480 |
u_src += (height2 - 1) * uv_src_stride; |
u_src += (height2 - 1) * uv_src_stride; |
481 |
v_src += (height2 - 1) * uv_src_stride; |
v_src += (height2 - 1) * uv_src_stride; |
482 |
|
} |
483 |
y_src_stride = -y_src_stride; |
y_src_stride = -y_src_stride; |
484 |
uv_src_stride = -uv_src_stride; |
uv_src_stride = -uv_src_stride; |
485 |
} |
} |
490 |
y_dst += y_dst_stride; |
y_dst += y_dst_stride; |
491 |
} |
} |
492 |
|
|
493 |
|
if (with_uv) { |
494 |
for (y = height2; y; y--) { |
for (y = height2; y; y--) { |
495 |
memcpy(u_dst, u_src, width2); |
memcpy(u_dst, u_src, width2); |
496 |
|
memcpy(v_dst, v_src, width2); |
497 |
u_src += uv_src_stride; |
u_src += uv_src_stride; |
498 |
u_dst += uv_dst_stride; |
u_dst += uv_dst_stride; |
499 |
|
v_src += uv_src_stride; |
500 |
|
v_dst += uv_dst_stride; |
501 |
} |
} |
502 |
|
} |
503 |
|
else { |
504 |
for (y = height2; y; y--) { |
for (y = height2; y; y--) { |
505 |
memcpy(v_dst, v_src, width2); |
memset(u_dst, 0x80, width2); |
506 |
v_src += uv_src_stride; |
memset(v_dst, 0x80, width2); |
507 |
|
u_dst += uv_dst_stride; |
508 |
v_dst += uv_dst_stride; |
v_dst += uv_dst_stride; |
509 |
} |
} |
510 |
} |
} |
511 |
|
} |
512 |
|
|
513 |
|
|
514 |
|
|