// kernel 代码 theta 为旋转角度 如45
__constant sampler_t sampler = CLK_NORMALIZED_COORDS_FALSE | CLK_FILTER_LINEAR | CLK_ADDRESS_CLAMP;__constant sampler_t s// kernel 代码 theta 为旋转角度 如45
__constant sampler_t sampler = CLK_NORMALIZED_COORDS_FALSE | CLK_FILTER_LINEAR | CLK_ADDRESS_CLAMP;__constant sampler_t s