2 * Support for Intel Camera Imaging ISP subsystem.
3 * Copyright (c) 2015, Intel Corporation.
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms and conditions of the GNU General Public License,
7 * version 2, as published by the Free Software Foundation.
9 * This program is distributed in the hope it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 #ifndef IA_CSS_NO_DEBUG
16 #include "ia_css_debug.h"
19 #include "type_support.h"
20 #include "assert_support.h"
21 #include "math_support.h" /* for min and max */
23 #include "ia_css_eed1_8.host.h"
25 /* WARNING1: Number of inv points should be less or equal to 16,
26 * due to implementation limitation. See kernel design document
28 * WARNING2: Do not modify the number of inv points without correcting
29 * the EED1_8 kernel implementation assumptions.
31 #define NUMBER_OF_CHGRINV_POINTS 15
32 #define NUMBER_OF_TCINV_POINTS 9
33 #define NUMBER_OF_FCINV_POINTS 9
35 const int16_t chgrinv_x[NUMBER_OF_CHGRINV_POINTS] = {
36 0, 16, 64, 144, 272, 448, 672, 976,
37 1376, 1888, 2528, 3312, 4256, 5376, 6688};
39 const int16_t chgrinv_a[NUMBER_OF_CHGRINV_POINTS] = {
40 -7171, -256, -29, -3456, -1071, -475, -189, -102,
41 -48, -38, -10, -9, -7, -6, 0};
43 const int16_t chgrinv_b[NUMBER_OF_CHGRINV_POINTS] = {
44 8191, 1021, 256, 114, 60, 37, 24, 17,
45 12, 9, 6, 5, 4, 3, 2};
47 const int16_t chgrinv_c[NUMBER_OF_CHGRINV_POINTS] = {
48 1, 1, 1, 0, 0, 0, 0, 0,
51 const int16_t tcinv_x[NUMBER_OF_TCINV_POINTS] = {
52 0, 4, 11, 23, 42, 68, 102, 148, 205};
54 const int16_t tcinv_a[NUMBER_OF_TCINV_POINTS] = {
55 -6364, -631, -126, -34, -13, -6, -4452, -2156, 0};
57 const int16_t tcinv_b[NUMBER_OF_TCINV_POINTS] = {
58 8191, 1828, 726, 352, 197, 121, 80, 55, 40};
60 const int16_t tcinv_c[NUMBER_OF_TCINV_POINTS] = {
61 1, 1, 1, 1, 1, 1, 0, 0, 0};
63 const int16_t fcinv_x[NUMBER_OF_FCINV_POINTS] = {
64 0, 80, 216, 456, 824, 1344, 2040, 2952, 4096};
66 const int16_t fcinv_a[NUMBER_OF_FCINV_POINTS] = {
67 -5244, -486, -86, -2849, -961, -400, -180, -86, 0};
69 const int16_t fcinv_b[NUMBER_OF_FCINV_POINTS] = {
70 8191, 1637, 607, 287, 159, 98, 64, 44, 32};
72 const int16_t fcinv_c[NUMBER_OF_FCINV_POINTS] = {
73 1, 1, 1, 0, 0, 0, 0, 0, 0};
77 ia_css_eed1_8_vmem_encode(
78 struct eed1_8_vmem_params *to,
79 const struct ia_css_eed1_8_config *from,
83 const unsigned total_blocks = 4;
84 const unsigned shuffle_block = 16;
89 for (i = 0; i < ISP_VEC_NELEMS; i++) {
90 to->e_dew_enh_x[0][i] = 0;
91 to->e_dew_enh_y[0][i] = 0;
92 to->e_dew_enh_a[0][i] = 0;
93 to->e_dew_enh_f[0][i] = 0;
94 to->chgrinv_x[0][i] = 0;
95 to->chgrinv_a[0][i] = 0;
96 to->chgrinv_b[0][i] = 0;
97 to->chgrinv_c[0][i] = 0;
98 to->tcinv_x[0][i] = 0;
99 to->tcinv_a[0][i] = 0;
100 to->tcinv_b[0][i] = 0;
101 to->tcinv_c[0][i] = 0;
102 to->fcinv_x[0][i] = 0;
103 to->fcinv_a[0][i] = 0;
104 to->fcinv_b[0][i] = 0;
105 to->fcinv_c[0][i] = 0;
108 /* Constraints on dew_enhance_seg_x and dew_enhance_seg_y:
109 * - values should be greater or equal to 0.
110 * - values should be ascending.
111 * - value of index zero is equal to 0.
114 /* Checking constraints: */
115 /* TODO: investigate if an assert is the right way to report that
116 * the constraints are violated.
118 for (j = 0; j < IA_CSS_NUMBER_OF_DEW_ENHANCE_SEGMENTS; j++) {
119 assert(from->dew_enhance_seg_x[j] > -1);
120 assert(from->dew_enhance_seg_y[j] > -1);
123 for (j = 1; j < IA_CSS_NUMBER_OF_DEW_ENHANCE_SEGMENTS; j++) {
124 assert(from->dew_enhance_seg_x[j] > from->dew_enhance_seg_x[j-1]);
125 assert(from->dew_enhance_seg_y[j] > from->dew_enhance_seg_y[j-1]);
128 assert(from->dew_enhance_seg_x[0] == 0);
129 assert(from->dew_enhance_seg_y[0] == 0);
131 /* Constraints on chgrinv_x, tcinv_x and fcinv_x:
132 * - values should be greater or equal to 0.
133 * - values should be ascending.
134 * - value of index zero is equal to 0.
136 assert(chgrinv_x[0] == 0);
137 assert(tcinv_x[0] == 0);
138 assert(fcinv_x[0] == 0);
140 for (j = 1; j < NUMBER_OF_CHGRINV_POINTS; j++) {
141 assert(chgrinv_x[j] > chgrinv_x[j-1]);
144 for (j = 1; j < NUMBER_OF_TCINV_POINTS; j++) {
145 assert(tcinv_x[j] > tcinv_x[j-1]);
148 for (j = 1; j < NUMBER_OF_FCINV_POINTS; j++) {
149 assert(fcinv_x[j] > fcinv_x[j-1]);
152 /* The implementation of the calulating 1/x is based on the availability
153 * of the OP_vec_shuffle16 operation.
154 * A 64 element vector is split up in 4 blocks of 16 element. Each array is copied to
155 * a vector 4 times, (starting at 0, 16, 32 and 48). All array elements are copied or
156 * initialised as described in the KFS. The remaining elements of a vector are set to 0.
158 /* TODO: guard this code with above assumptions */
159 for(i = 0; i < total_blocks; i++) {
160 base = shuffle_block * i;
162 for (j = 0; j < IA_CSS_NUMBER_OF_DEW_ENHANCE_SEGMENTS; j++) {
163 to->e_dew_enh_x[0][base + j] = min(max(from->dew_enhance_seg_x[j], 0), 8191);
164 to->e_dew_enh_y[0][base + j] = min(max(from->dew_enhance_seg_y[j], -8192), 8191);
167 for (j = 0; j < (IA_CSS_NUMBER_OF_DEW_ENHANCE_SEGMENTS - 1); j++) {
168 to->e_dew_enh_a[0][base + j] = min(max(from->dew_enhance_seg_slope[j], -8192), 8191);
169 /* Convert dew_enhance_seg_exp to flag:
173 to->e_dew_enh_f[0][base + j] = (min(max(from->dew_enhance_seg_exp[j], 0), 13) > 0);
176 /* Hard-coded to 0, in order to be able to handle out of
177 * range input in the same way as the other segments.
178 * See KFS for more details.
180 to->e_dew_enh_a[0][base + (IA_CSS_NUMBER_OF_DEW_ENHANCE_SEGMENTS - 1)] = 0;
181 to->e_dew_enh_f[0][base + (IA_CSS_NUMBER_OF_DEW_ENHANCE_SEGMENTS - 1)] = 0;
183 for (j = 0; j < NUMBER_OF_CHGRINV_POINTS; j++) {
184 to->chgrinv_x[0][base + j] = chgrinv_x[j];
185 to->chgrinv_a[0][base + j] = chgrinv_a[j];
186 to->chgrinv_b[0][base + j] = chgrinv_b[j];
187 to->chgrinv_c[0][base + j] = chgrinv_c[j];
190 for (j = 0; j < NUMBER_OF_TCINV_POINTS; j++) {
191 to->tcinv_x[0][base + j] = tcinv_x[j];
192 to->tcinv_a[0][base + j] = tcinv_a[j];
193 to->tcinv_b[0][base + j] = tcinv_b[j];
194 to->tcinv_c[0][base + j] = tcinv_c[j];
197 for (j = 0; j < NUMBER_OF_FCINV_POINTS; j++) {
198 to->fcinv_x[0][base + j] = fcinv_x[j];
199 to->fcinv_a[0][base + j] = fcinv_a[j];
200 to->fcinv_b[0][base + j] = fcinv_b[j];
201 to->fcinv_c[0][base + j] = fcinv_c[j];
208 ia_css_eed1_8_encode(
209 struct eed1_8_dmem_params *to,
210 const struct ia_css_eed1_8_config *from,
218 to->rbzp_strength = from->rbzp_strength;
220 to->fcstrength = from->fcstrength;
221 to->fcthres_0 = from->fcthres_0;
222 to->fc_sat_coef = from->fc_sat_coef;
223 to->fc_coring_prm = from->fc_coring_prm;
224 to->fc_slope = from->fcthres_1 - from->fcthres_0;
226 to->aerel_thres0 = from->aerel_thres0;
227 to->aerel_gain0 = from->aerel_gain0;
228 to->aerel_thres_diff = from->aerel_thres1 - from->aerel_thres0;
229 to->aerel_gain_diff = from->aerel_gain1 - from->aerel_gain0;
231 to->derel_thres0 = from->derel_thres0;
232 to->derel_gain0 = from->derel_gain0;
233 to->derel_thres_diff = (from->derel_thres1 - from->derel_thres0);
234 to->derel_gain_diff = (from->derel_gain1 - from->derel_gain0);
236 to->coring_pos0 = from->coring_pos0;
237 to->coring_pos_diff = (from->coring_pos1 - from->coring_pos0);
238 to->coring_neg0 = from->coring_neg0;
239 to->coring_neg_diff = (from->coring_neg1 - from->coring_neg0);
241 /* Note: (ISP_VEC_ELEMBITS -1)
242 * TODO: currently the testbench does not support to use
243 * ISP_VEC_ELEMBITS. Investigate how to fix this
245 to->gain_exp = (13 - from->gain_exp);
246 to->gain_pos0 = from->gain_pos0;
247 to->gain_pos_diff = (from->gain_pos1 - from->gain_pos0);
248 to->gain_neg0 = from->gain_neg0;
249 to->gain_neg_diff = (from->gain_neg1 - from->gain_neg0);
251 to->margin_pos0 = from->pos_margin0;
252 to->margin_pos_diff = (from->pos_margin1 - from->pos_margin0);
253 to->margin_neg0 = from->neg_margin0;
254 to->margin_neg_diff = (from->neg_margin1 - from->neg_margin0);
256 /* Encode DEWEnhance exp (e_dew_enh_asr) */
257 for (i = 0; i < (IA_CSS_NUMBER_OF_DEW_ENHANCE_SEGMENTS - 1); i++) {
258 min_exp = max(min_exp, from->dew_enhance_seg_exp[i]);
260 to->e_dew_enh_asr = 13 - min(max(min_exp, 0), 13);
262 to->dedgew_max = from->dedgew_max;
267 ia_css_init_eed1_8_state(
271 memset(state, 0, size);
275 #ifndef IA_CSS_NO_DEBUG
277 ia_css_eed1_8_debug_dtrace(
278 const struct ia_css_eed1_8_config *eed,
284 ia_css_debug_dtrace(level, "Edge Enhancing Demosaic 1.8:\n");
285 ia_css_debug_dtrace(level, "\t%-32s = %d\n", "rbzp_strength", eed->rbzp_strength);
286 ia_css_debug_dtrace(level, "\t%-32s = %d\n", "fcstrength", eed->fcstrength);
287 ia_css_debug_dtrace(level, "\t%-32s = %d\n", "fcthres_0", eed->fcthres_0);
288 ia_css_debug_dtrace(level, "\t%-32s = %d\n", "fcthres_1", eed->fcthres_1);
289 ia_css_debug_dtrace(level, "\t%-32s = %d\n", "fc_sat_coef", eed->fc_sat_coef);
290 ia_css_debug_dtrace(level, "\t%-32s = %d\n", "fc_coring_prm", eed->fc_coring_prm);
292 ia_css_debug_dtrace(level, "\t%-32s = %d\n", "aerel_thres0", eed->aerel_thres0);
293 ia_css_debug_dtrace(level, "\t%-32s = %d\n", "aerel_gain0", eed->aerel_gain0);
294 ia_css_debug_dtrace(level, "\t%-32s = %d\n", "aerel_thres1", eed->aerel_thres1);
295 ia_css_debug_dtrace(level, "\t%-32s = %d\n", "aerel_gain1", eed->aerel_gain1);
297 ia_css_debug_dtrace(level, "\t%-32s = %d\n", "derel_thres0", eed->derel_thres0);
298 ia_css_debug_dtrace(level, "\t%-32s = %d\n", "derel_gain0", eed->derel_gain0);
299 ia_css_debug_dtrace(level, "\t%-32s = %d\n", "derel_thres1", eed->derel_thres1);
300 ia_css_debug_dtrace(level, "\t%-32s = %d\n", "derel_gain1", eed->derel_gain1);
302 ia_css_debug_dtrace(level, "\t%-32s = %d\n", "coring_pos0", eed->coring_pos0);
303 ia_css_debug_dtrace(level, "\t%-32s = %d\n", "coring_pos1", eed->coring_pos1);
304 ia_css_debug_dtrace(level, "\t%-32s = %d\n", "coring_neg0", eed->coring_neg0);
305 ia_css_debug_dtrace(level, "\t%-32s = %d\n", "coring_neg1", eed->coring_neg1);
307 ia_css_debug_dtrace(level, "\t%-32s = %d\n", "gain_exp", eed->gain_exp);
308 ia_css_debug_dtrace(level, "\t%-32s = %d\n", "gain_pos0", eed->gain_pos0);
309 ia_css_debug_dtrace(level, "\t%-32s = %d\n", "gain_pos1", eed->gain_pos1);
310 ia_css_debug_dtrace(level, "\t%-32s = %d\n", "gain_neg0", eed->gain_neg0);
311 ia_css_debug_dtrace(level, "\t%-32s = %d\n", "gain_neg1", eed->gain_neg1);
313 ia_css_debug_dtrace(level, "\t%-32s = %d\n", "pos_margin0", eed->pos_margin0);
314 ia_css_debug_dtrace(level, "\t%-32s = %d\n", "pos_margin1", eed->pos_margin1);
315 ia_css_debug_dtrace(level, "\t%-32s = %d\n", "neg_margin0", eed->neg_margin0);
316 ia_css_debug_dtrace(level, "\t%-32s = %d\n", "neg_margin1", eed->neg_margin1);
318 ia_css_debug_dtrace(level, "\t%-32s = %d\n", "dedgew_max", eed->dedgew_max);