Lines Matching defs:sum
216 /* Naive boxblur would sum source pixels from x-radius .. x+radius
232 int x, sum = 0;
235 sum += src[x*src_step]<<1;
236 sum += src[radius*src_step];
239 sum += src[(radius+x)*src_step] - src[(radius-x)*src_step];
240 dst[x*dst_step] = (sum*inv + (1<<15))>>16;
244 sum += src[(radius+x)*src_step] - src[(x-radius-1)*src_step];
245 dst[x*dst_step] = (sum*inv + (1<<15))>>16;
249 sum += src[(2*len-radius-x-1)*src_step] - src[(x-radius-1)*src_step];
250 dst[x*dst_step] = (sum*inv + (1<<15))>>16;