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__kernel __attribute__((intel_reqd_sub_group_size(16)))
void compiler_block_motion_estimate_intel(
__read_only image2d_t src_img,
__read_only image2d_t ref_img,
__global short2* motion_vector_buffer,
__global ushort* residuals_buffer,
__global uchar* mj_shape_buffer,
__global uchar* mn_shapes_buffer,
__global uchar* directions_buffer,
__global uint* dwo_buffer,
__global uint* pld_buffer) {
int gr_id0 = get_group_id(0);
int gr_id1 = get_group_id(1);
ushort2 src_coord = 0;
src_coord.x = gr_id0 * 16;
src_coord.y = gr_id1 * 16;
uchar partition_mask = CLK_AVC_ME_PARTITION_MASK_16x16_INTEL;
uchar sad_adjustment = CLK_AVC_ME_SAD_ADJUST_MODE_NONE_INTEL;
intel_sub_group_avc_ime_payload_t payload = intel_sub_group_avc_ime_initialize(src_coord, partition_mask, sad_adjustment);
short2 ref_offset = 0;
uchar search_window_config = CLK_AVC_ME_SEARCH_WINDOW_EXTRA_TINY_INTEL;
payload = intel_sub_group_avc_ime_set_single_reference(ref_offset, search_window_config, payload);
//mv cost penalty setting
ulong packed_cc_delta = 0;
uint2 packed_cost_table = intel_sub_group_avc_mce_get_default_medium_penalty_cost_table();
uchar cost_precision = CLK_AVC_ME_COST_PRECISION_QPEL_INTEL;
payload = intel_sub_group_avc_ime_set_motion_vector_cost_function(
packed_cc_delta, packed_cost_table, cost_precision, payload);
//ime shape penalty
ulong packed_shape_cost = (1 << 4 | 2);
packed_shape_cost <<= 32;
payload = intel_sub_group_avc_ime_set_inter_shape_penalty(packed_shape_cost ,payload);
sampler_t vs = 0;
intel_sub_group_avc_ime_result_t i_result =
intel_sub_group_avc_ime_evaluate_with_single_reference(src_img, ref_img, vs, payload);
//Get ime related result
ulong mvs = intel_sub_group_avc_ime_get_motion_vectors(i_result);
ushort distortions = intel_sub_group_avc_ime_get_inter_distortions(i_result);
uchar major_shape = intel_sub_group_avc_ime_get_inter_major_shape(i_result);
uchar minor_shapes = intel_sub_group_avc_ime_get_inter_minor_shapes(i_result);
uchar directions = intel_sub_group_avc_ime_get_inter_directions(i_result);
int lid_x = get_local_id(0);
int mb = gr_id0 + gr_id1 * get_num_groups(0);
int2 bi_mvs = as_int2(mvs);
if(lid_x == 0){
motion_vector_buffer[mb] = as_short2(bi_mvs.s0);
residuals_buffer[mb] = distortions;
mj_shape_buffer[mb] = major_shape;
mn_shapes_buffer[mb] = minor_shapes;
directions_buffer[mb] = directions;
}
//fme setting and evaluate
uchar pixel_mode = CLK_AVC_ME_SUBPIXEL_MODE_QPEL_INTEL;
intel_sub_group_avc_ref_payload_t r_payload =
intel_sub_group_avc_fme_initialize(
src_coord, mvs, major_shape, minor_shapes,
directions, pixel_mode, sad_adjustment);
intel_sub_group_avc_ref_result_t r_result =
intel_sub_group_avc_ref_evaluate_with_single_reference(src_img, ref_img, vs, r_payload);
mvs = intel_sub_group_avc_ref_get_motion_vectors(r_result);
distortions = intel_sub_group_avc_ref_get_inter_distortions(r_result);
dwo_buffer[mb*16*4 + lid_x + 16*0] = i_result.s0;
dwo_buffer[mb*16*4 + lid_x + 16*1] = i_result.s1;
dwo_buffer[mb*16*4 + lid_x + 16*2] = i_result.s2;
dwo_buffer[mb*16*4 + lid_x + 16*3] = i_result.s3;
}
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