diffSign1         126 modules/superres/src/opencl/superres_btvl1.cl             diffSign1(*(__global const float *)(src1 + mad24(y, src1_step, sz * x + src1_offset)),
diffSign1         148 modules/superres/src/opencl/superres_btvl1.cl                 dstVal += c_btvRegWeights[count] * (diffSign1(srcVal, src_elem_at(src, y + m, src_step, x + l))
diffSign1         149 modules/superres/src/opencl/superres_btvl1.cl                     - diffSign1(src_elem_at(src, y - m, src_step, x - l), srcVal));