Lines Matching defs:sum
208 /* Naive boxblur would sum source pixels from x-radius .. x+radius
224 int x, sum = 0;
227 sum += src[x*src_step]<<1;
228 sum += src[radius*src_step];
231 sum += src[(radius+x)*src_step] - src[(radius-x)*src_step];
232 dst[x*dst_step] = (sum*inv + (1<<15))>>16;
236 sum += src[(radius+x)*src_step] - src[(x-radius-1)*src_step];
237 dst[x*dst_step] = (sum*inv + (1<<15))>>16;
241 sum += src[(2*len-radius-x-1)*src_step] - src[(x-radius-1)*src_step];
242 dst[x*dst_step] = (sum*inv + (1<<15))>>16;