dc/dce/dce_transform.c

122 	if (data->taps.h_taps + data->taps.v_taps <= 2) {
132 			SCL_H_NUM_OF_TAPS, data->taps.h_taps - 1,
133 			SCL_V_NUM_OF_TAPS, data->taps.v_taps - 1);
156 	if (data->taps.h_taps + data->taps.v_taps <= 2) {
165 			SCL_H_NUM_OF_TAPS, data->taps.h_taps - 1,
166 			SCL_V_NUM_OF_TAPS, data->taps.v_taps - 1);
209 	int taps,
215 	int taps_pairs = (taps + 1) / 2;
242 			if (taps % 2 && pair == taps_pairs - 1)
294 				dc_fixpt_from_int(data->taps.h_taps + 1)),
303 				dc_fixpt_from_int(data->taps.v_taps + 1)),
332 				dc_fixpt_from_int(data->taps.v_taps + 1)),
391 static const uint16_t *get_filter_coeffs_16p(int taps, struct fixed31_32 ratio)
393 	if (taps == 4)
395 	else if (taps == 3)
397 	else if (taps == 2)
399 	else if (taps == 1)
428 	/* 2. Program taps and configuration */
439 		coeffs_v = get_filter_coeffs_16p(data->taps.v_taps, data->ratios.vert);
440 		coeffs_h = get_filter_coeffs_16p(data->taps.h_taps, data->ratios.horz);
449 					data->taps.v_taps,
454 					data->taps.v_taps,
464 					data->taps.h_taps,
469 					data->taps.h_taps,
511 	/* 2. Program taps and configuration */
524 		coeffs_v = get_filter_coeffs_16p(data->taps.v_taps, data->ratios.vert);
525 		coeffs_h = get_filter_coeffs_16p(data->taps.h_taps, data->ratios.horz);
534 					data->taps.v_taps,
539 					data->taps.v_taps,
549 					data->taps.h_taps,
554 					data->taps.h_taps,
1143 	uint32_t taps;
1148 		taps = in_taps;
1150 		taps = 4;
1154 		taps /= 2;
1155 		if (taps < 2)
1156 			taps = 2;
1159 	return taps;
1186 	 * Set taps according to this policy (in this order)
1188 	 * - Use input taps
1190 	 * - Decide chroma taps if chroma is scaled
1192 	 * Ignore input chroma taps. Decide based on non-chroma
1194 	scl_data->taps.h_taps = decide_taps(scl_data->ratios.horz, in_taps->h_taps, false);
1195 	scl_data->taps.v_taps = decide_taps(scl_data->ratios.vert, in_taps->v_taps, false);
1196 	scl_data->taps.h_taps_c = decide_taps(scl_data->ratios.horz_c, in_taps->h_taps, true);
1197 	scl_data->taps.v_taps_c = decide_taps(scl_data->ratios.vert_c, in_taps->v_taps, true);
1202 				&& max_num_of_lines <= scl_data->taps.v_taps
1203 				&& scl_data->taps.v_taps > 1) {
1204 			scl_data->taps.v_taps = max_num_of_lines - 1;
1207 		if (scl_data->taps.v_taps <= 1)
1213 		if (max_num_of_lines <= scl_data->taps.v_taps_c && scl_data->taps.v_taps_c > 1) {
1214 			scl_data->taps.v_taps_c = max_num_of_lines - 1;
1217 		if (scl_data->taps.v_taps_c <= 1)
1221 	/* we've got valid taps */