*/
#include "libavutil/common.h"
+#include "libavutil/intreadwrite.h"
#include "dct.h"
#include "idctdsp.h"
* row DCT calculations can be simplified this way.
*/
- register int *idataptr = (int*)dataptr;
+ register uint8_t *idataptr = (uint8_t*)dataptr;
/* WARNING: we do the same permutation as MMX idct to simplify the
video core */
int16_t dcval = (int16_t) (d0 * (1 << PASS1_BITS));
register int v = (dcval & 0xffff) | ((dcval * (1 << 16)) & 0xffff0000);
- idataptr[0] = v;
- idataptr[1] = v;
- idataptr[2] = v;
- idataptr[3] = v;
+ AV_WN32A(&idataptr[ 0], v);
+ AV_WN32A(&idataptr[ 4], v);
+ AV_WN32A(&idataptr[ 8], v);
+ AV_WN32A(&idataptr[12], v);
}
dataptr += DCTSIZE; /* advance pointer to next row */
* row DCT calculations can be simplified this way.
*/
- register int *idataptr = (int*)dataptr;
+ register uint8_t *idataptr = (uint8_t*)dataptr;
d0 = dataptr[0];
d2 = dataptr[1];
int16_t dcval = (int16_t) (d0 << PASS1_BITS);
register int v = (dcval & 0xffff) | ((dcval << 16) & 0xffff0000);
- idataptr[0] = v;
- idataptr[1] = v;
+ AV_WN32A(&idataptr[0], v);
+ AV_WN32A(&idataptr[4], v);
}
dataptr += DCTSTRIDE; /* advance pointer to next row */