Commit 78f67b7a authored by Michael Niedermayer's avatar Michael Niedermayer

simplify

Originally committed as revision 5571 to svn://svn.ffmpeg.org/ffmpeg/trunk
parent 79433554
......@@ -301,20 +301,19 @@ static void calc_sums(int pmax, uint32_t *data, int n, int pred_order,
uint32_t sums[][256])
{
int i, j;
int parts, cnt;
uint32_t *res;
int parts;
uint32_t *res, *res_end;
/* sums for highest level */
parts = (1 << pmax);
res = &data[pred_order];
cnt = (n >> pmax) - pred_order;
res_end = &data[n >> pmax];
for(i=0; i<parts; i++) {
if(i == 1) cnt = (n >> pmax);
if(i > 0) res = &data[i*cnt];
sums[pmax][i] = 0;
for(j=0; j<cnt; j++) {
sums[pmax][i] += res[j];
while(res < res_end){
sums[pmax][i] += *(res++);
}
res_end+= n >> pmax;
}
/* sums for lower levels */
for(i=pmax-1; i>=0; i--) {
......
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